A bush member includes an Fe-based back metal layer, and a bearing alloy layer joined to the back metal layer. The bearing alloy layer is formed of a Cu-based alloy containing 25 to 45% by mass of Zn and has a Vickers hardness of 150 to 230 HV, and the back metal layer has a Vickers hardness of 160 to 240 HV.
There is provided a half thrust bearing having a constant bearing wall thickness between a slide surface and a back surface, and including an approximately flat center region and two end regions on both circumferential sides of the center region. Each end region extends from each circumferential end of the half thrust bearing toward a circumferential center over a circumferential angle of 5° or more and 35° or less. A reference surface is defined as an imaginary plane which is perpendicular to an axial direction of the half thrust bearing, parallel to the slide surface in the center region, and located away from the slide surface. An axial distance between the slide surface and the reference surface is minimum in the center region, and continuously increases circumferentially from a center region side toward a circumferential end side at any radial position in each end regions.
Provided is a bismuth-based overlay layer having high fatigue resistance even when additive particles are contained. A bismuth-based overlay layer for a sliding member according to the present invention includes: a polycrystalline matrix including crystal particles made of a material containing bismuth or a bismuth alloy; and additive particles dispersed in the matrix. The matrix includes a region in which crystal particles having one degree or less of grain orientation spread (GOS) accounts for 85% or more of all the crystal particles.
A sliding member includes a base material. A sliding layer is laminated on the base material and has a matrix and particle phases uniformly and finely dispersed in the matrix. An arbitrary observation cross section is set in the sliding layer, and area rates Sv of the particle phases in the plurality of arbitrary observation regions extracted from the observation cross section are 0.2%≤Sv≤5% in all of the observation regions. A maximum particle diameter Da of the particle phases is 0 μm
A sliding member 10 includes a bearing alloy layer 12, and a first DLC layer 11 provided on a sliding side of the bearing alloy layer 12 with respect to a mating material. The first DLC layer 11 is formed of DLC containing a preset additive element, and high concentration parts 21 having a high concentration of the additive element and low concentration parts 22 having a lower concentration of the additive element than the high concentration parts 21 are alternately formed in a direction perpendicular to the thickness direction.
A sliding member includes: a semi-annular metal member having a back metal layer arranged on an outer circumferential surface side and a lining layer made of an Al alloy and arranged on an inner circumferential surface side; an adhesive layer stacked on an inner circumferential surface of the metal member and containing Zn as a main component; an intermediate layer stacked on the adhesive layer and containing Ag, Ni, or Co as a main component; and a cover layer stacked on the intermediate layer and containing Bi, Pb, or Sn as a main component. The adhesive layer extends continuously so as to further cover an axial end face of the metal member, and the ratio of a surface area of the adhesive layer covering the axial end face to a surface area of the axial end face is 30% or more.
A sliding member 10 comprises: a base material 11; and a sliding alloy part 12 that is provided on the surface 13 of the base material 11, that is a Cu-based alloy mainly composed of Cu, and that is formed from a set of a plurality of unit alloy parts 12A-12E. The sliding alloy part 12 includes a first soft phase 31 existing in a boundary region 22 defined within a preset range with reference to a unit interface 21, and a second soft phase 32 existing in a region excluding the boundary region 22. When the total area proportion of the first soft phase 31 included per unit area is defined as a first area proportion S1, and the total area proportion of the second soft phase 32 included per unit area is defined as a second area proportion S2, the sliding alloy part 12 satisfies S1
A sliding member comprising a back metal layer, and a sliding layer, wherein the sliding layer contains a resin material, a surface of the sliding layer is an exposed sliding surface, and the sliding layer has Martens hardness of 25 to 45 N/mm2 and a creep deformation ratio of 10% to 30%.
A sliding member of the present embodiment includes: a lining layer including a Bi phase; and a coating layer containing Ni, the coating layer being provided on a surface of the lining layer, the coating layer partially forming an entrance portion that has entered the lining layer side at an interface with respect to the lining layer. At any observation region including the interface between the lining layer and the coating layer, a value R=S1/S2 of a ratio of a maximum area S1 of the Bi phase included in the lining layer to a maximum area S2 of the entrance portion that has entered the lining layer is 1.00≤R≤9.00.
In a half thrust bearing for a crankshaft, a slide surface includes at least two oil grooves extending in a radial direction, pad surfaces located on both circumferential sides of each oil groove, a first inclined surface formed on a forward side of the oil groove in a rotation direction of the crankshaft, and a second inclined surface formed on a backward side of the oil groove in the rotation direction. Each of the first and second inclined surfaces has a circumferential length which varies along the radial direction and includes a ridge portion at a radial position where the circumferential length is minimum. The axial thickness of each of the first and second inclined surfaces is maximum at the ridge portion in the radial direction and become smaller from the ridge portion toward a radially inner end and toward a radially outer end.
A sliding member includes a substrate containing Fe as a main component and an alloy layer overlaid on the substrate and composed of a Cu-base alloy containing 6 to 12% by mass of Ni and 3 to 9% by mass of Sn. The alloy layer has a body layer and an intermediate layer. The body layer is formed of the Cu-base alloy, while the intermediate layer is composed of an alloy containing Ni, Sn, and Cu which are derived from the Cu-base alloy and Fe derived from the substrate. Taking side close to the substrate as a lower region and the other side as an upper region, a ratio of the total area of hard phases to the observation section of the upper region is 1.2 to 3.0, where the ratio of the total area of the hard phases to the observation section of the lower region is set at 1.
Provided is a sliding member of an internal combustion engine including a self-detecting material for highly reliable and easy monitoring of damage to the sliding member. A sliding member of an internal combustion engine including a self-detecting material for monitoring damage to the sliding member, wherein the sliding member has a single-layer or multi-layer structure made of a metal, an alloy, and/or a resin material, the self-detecting material is embedded in at least one of the layers constituting the sliding member, and the self-detecting material is configured of at least one kind of material that exhibits a signal characteristic in response to external energy.
G01M 15/02 - Details or accessories of testing apparatus
F16C 17/24 - Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired conditions, e.g. for preventing overheating, for safety
13.
SLIDING MEMBER, GEAR BOX USING SAME, WIND POWERED GENERATOR, AND METHOD FOR MANUFACTURING SLIDING MEMBER
This sliding member comprises a base material, and a sliding layer that is stacked on the base material and has a matrix and a particle phase dispersed uniformly and finely in the matrix. An arbitrary observation cross-section of the sliding layer is set, and an area ratio Sv of the particle phase in a plurality of arbitrary observation regions extracted from the observation cross-section is 0.2% ≤ Sv ≤ 5％ in each of the observation regions. The maximum particle diameter Da of the particle phase is 0 μm < Da ≤ 30 μm.
A sliding member includes a base material and an alloy layer that includes Cu as a main component and Bi and having a sliding surface formed on a side opposite to the base material. The alloy layer has a first region and a second region. The first region is set to a region taking up 30% of the thickness of the alloy layer which is from an interface in contact with the base material toward the sliding surface. The second region is set to a region taking up 10% of the thickness of the alloy layer which is from the sliding surface toward the base material. A larger number of Bi phases having larger cross-sectional areas are distributed in an arbitrary observation cross section as Bi phases included in the second region compared to Bi phases included in the first region.
F16C 33/12 - Structural compositionUse of special materials or surface treatments, e.g. for rust-proofing
F16C 33/14 - Special methods of manufactureRunning-in
B22D 13/02 - Centrifugal castingCasting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
B22D 19/08 - Casting in, on, or around, objects which form part of the product for building up linings or coverings, e.g. of anti-frictional metal
A sliding member of the present invention includes a resin overlay layer containing an additive, in which the additive contains an oleophobic resin made of a fluorine resin and/or a silicon resin, and an appropriate amount of the oleophobic resin is uniformly dispersed on a sliding surface of the resin overlay layer. According to the sliding member, oil repellency can be imparted to the sliding surface of the resin overlay layer.
A removing system includes: an anode and a cathode configured to oppose active materials to each other to form a first passage, the anode and the cathode adsorbing ions in response to the application of direct current potential between the active materials; a second passage configured to form a path for liquid containing ions at a concentration equal to or higher than a predetermined level; and a third passage configured to connect a path for diluting liquid to the second passage to mix the liquid with the diluting liquid, the third passage serving to supply to the first passage liquid containing ions at a concentration lower than the predetermined level.
C02F 1/469 - Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
A capacitive deionization device includes, an anode and a cathode configured to oppose active materials to each other to form a passage, the anode and the cathode adsorbing ions based on electric double layers established in pores on the surfaces of the active materials; a concentration controller configured to keep the concentration of ions in liquid flowing into the passage at a level equal to or higher than a predetermined threshold; and a control circuit configured to regulate potential applied between the anode and the cathode at a level lower than an upper limit determined in accordance with the concentration of the ions detected.
C02F 1/469 - Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
C02F 1/00 - Treatment of water, waste water, or sewage
Provided is a guide roller for a vehicle sliding door. The guide roller rolls along a rail located on a vehicle body. The guide roller is pivotally supported in a rotatable manner by a support member coupled to the vehicle sliding door. The guide roller includes a ring-shaped inner race made of metal, a ring-shaped outer race, and a covering member mounted on an outer peripheral surface of the outer race.
A half thrust bearing includes a slide surface which includes: at least two oil grooves extending in a radial direction; a plurality of pad surfaces located on both sides of each oil groove in a circumferential direction; and at least two first inclined surfaces each formed between the oil groove and the pad surface on a front side of the oil groove in a rotation direction of a crankshaft. A plurality of circumferential grooves are formed in succession in the radial direction on the first inclined surface. A plurality of oil drain grooves extends side by side to intersect the circumferential direction and the radial direction on the pad surface. A plurality of flat portions are formed each between the adjacent oil drain grooves. Each oil drain groove is open at a radially outer end and/or a radially inner end of the pad surface.
A sliding member includes a bearing alloy layer and an overlay. The overlay includes a diffusion prevention layer on the bearing alloy layer, and a corrosion prevention layer on the diffusion prevention layer. A surface of the corrosion prevention layer is a sliding surface. The corrosion prevention layer constitutes 50% to 90% of an entire volume of the overlay. The corrosion prevention layer and the diffusion prevention layer each include a corrosion inhibitor and the balance of Bi and inevitable impurities. The corrosion inhibitor is defined as one or more elements that have a higher oxygen affinity than Bi and that form an alloy, a solid solution or an intermetallic compound with Bi. An average concentration of the corrosion inhibitor included in the diffusion prevention layer is lower than an average concentration of the corrosion inhibitor included in the corrosion prevention layer.
A roller including: a main body portion configured to include an outer ring and a rotatable inner ring on an inner circumferential side of the outer ring; and a covering portion disposed on an outer circumferential surface of the outer ring, the covering portion being made of a synthetic resin in which reinforced fibers are dispersed, wherein the covering portion includes a region in which arrangement directions of the reinforced fibers are aligned.
E05D 15/06 - Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
B29K 77/00 - Use of polyamides, e.g. polyesteramides, as moulding material
In a sliding member, fatigue resistance of a surface layer formed by dispersing a hard material in a soft metal matrix is improved. A sliding member includes a base material layer and a surface layer, the surface layer includes a metal matrix and a hard material harder than the matrix and dispersed in the matrix, the hard material has a gradient in hardness, and the gradient in hardness gradually decreases from an inner side to a surface of the hard material.
C23C 18/08 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by thermal decomposition characterised by the deposition of metallic material
Provided is a half bearing constituting a sliding bearing that is unlikely to cause damage during an operation of an internal combustion engine. The half bearing includes at least one protrusion, and the protrusion projects outward in a radial direction from an outer circumferential surface. A recessed portion that is recessed inward in the radial direction from the outer circumferential surface is formed over the entire inner-circumferential length between the protrusion and a circumferential-direction end surface of the half bearing. Two radial-direction grooves are formed in the circumferential-direction end surface of the half bearing relative to the protrusion, and each of the radial-direction grooves is adjacent to each of recessed portion side surfaces. The radial-direction grooves extend in the radial direction along the recessed portion side surfaces and are separated from the recessed portion at a midpoint of the extension. An inner circumferential surface-side end portion in an extending direction of the radial-direction grooves is located between a recessed portion bottom surface and an inner circumferential surface of the half bearing. A groove width and a groove depth of the radial-direction grooves decrease from the position separated from the recessed portion toward the inner circumferential surface-side end portion and reach zero at the inner circumferential surface-side end portion.
The present invention provides a sliding member which enables further reduction of friction and improvement of seizure resistance without deteriorating wear resistance of a sliding surface. The sliding member includes a porous metal base material, and a resin material with which the porous metal base material is impregnated. The sliding member includes an exposed sliding surface. The sliding surface includes a top surface made of the resin material, and a bottom surface made of the porous metal base material. A height from the bottom surface to the top surface is 10 to 30 μm, and the resin material includes fluorine resin.
A sliding member includes a resin overlay layer on a sliding-surface side of a bearing alloy layer. The resin layer includes a resin binder and 20% by volume or more of solid lubricant particles with an anisotropic shape dispersed in the resin binder. The sliding surface is located at 0° and has a virtual axis perpendicular to the sliding surface at 90°. An angle θ is formed by a straight line and a major axis of the particles. The total number of the particles in a observation region is N. A rate R1=N1/N of the number N1 of first particles at the angle θ of 70°≤θ≤90° from among the particles is 3%≤R1≤20%, and a rate R2=N2/N of the number N2 of second particles with the angle θ being θ≤20° is 35%≤R2≤65%.
Provided is a slide member having an overlay on a bearing alloy. The overlay has a thickness T and has a sliding surface and an interface with respect to the bearing alloy. The overlay includes an intermetallic compound and a matrix of Bi or a Bi alloy. In a thickness domain constituting 70%-75% of the thickness T of the overlay from the sliding surface to the interface, the volume proportion of the intermetallic compound is 10%-70%.
A bearing assembly for a turbo-engine with a bearing and parts of a bearing temperature detecting device. The bearing includes a main body having a thermoplastic bearing layer. A space is defined in the interior of the main body and of the thermoplastic bearing layer for accommodating parts of the bearing temperature detecting device. The space has a through hole having a first opening in the thermoplastic bearing layer and a second opening located in the main body. The parts include a temperature conducting element, a temperature sensor, and a securing fixture that attaches the temperature conducting element. The first opening of the through hole has a chamfer and the first end of temperature conducting element has a head which is correspondingly shaped to the chamfer in a form fitting manner. The center-axis of the temperature sensor extends transversely to the center-axis of the temperature conducting element.
F16C 17/24 - Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired conditions, e.g. for preventing overheating, for safety
F16C 17/06 - Sliding-contact bearings for exclusively rotary movement for axial load only with tiltably-supported segments, e.g. Michell bearings
F16C 33/20 - Sliding surface consisting mainly of plastics
Provided is a method for producing a sliding member formed by impregnating a porous base member made of a bronze-based alloy with a resin material, the sliding member including a sliding surface where both the porous base member and the resin material are exposed, the method including: a step of preparing a back metal layer; a porous base member formation step of forming the porous base member by depositing particles of the bronze-based alloy on a surface of the back metal layer and sintering the particles; an impregnation step of impregnating the porous base member with the resin material; a deformation step of deforming an end edge of the back metal layer in a direction away from the sliding surface; and a cutting step of cutting the porous base member impregnated with the resin material to form the sliding surface.
B22F 7/04 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite layers with one or more layers not made from powder, e.g. made from solid metal
F16C 33/12 - Structural compositionUse of special materials or surface treatments, e.g. for rust-proofing
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B32B 3/02 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
B32B 5/16 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer formed of particles, e.g. chips, chopped fibres, powder
B22F 3/24 - After-treatment of workpieces or articles
29.
Half thrust bearing and bearing device for crankshaft of internal combustion engine
A half thrust bearing for a crankshaft of an internal combustion engine is formed of a back metal layer and a bearing alloy layer to have a slide surface and two thrust reliefs. Each thrust relieve includes a first region, where the back metal layer is exposed, on a circumferential end surface side, and a second region, where the bearing alloy layer is exposed, on the slide surface side while the slide surface includes two third regions adjacent to the second region, and a fourth region between the two third regions. A circumferential end region consists of the first, second and third regions. In the second region and the third regions, the bearing alloy layer includes a uniform thickness portion at a radial center, and a decreased thickness portion adjacent to an inner-diameter-side end surface.
A half thrust bearing for a crankshaft of an internal combustion engine is formed of a back metal layer and a bearing alloy layer to have a slide surface and two thrust reliefs. Each thrust relieve includes a first region, where the back metal layer is exposed, on a circumferential end surface side, and a second region and a third region, where the bearing alloy layer is exposed while the slide surface includes a fourth region. A circumferential end region consists of the first and second regions. The bearing alloy layer includes a uniform thickness portion, and a decreased thickness portion adjacent to an inner-diameter-side end surface in a cross-section of the second region and includes a uniform thickness portion and an increased thickness portion adjacent to the inner-diameter-side surface in cross-sections of the third and fourth regions.
A sliding member including, a support layer and a sliding layer provided on a side of one end surface of the support layer configured to slide on a mating member, the sliding layer having a hardness set higher toward an outer side than at a center in an axial direction.
F03C 1/06 - Reciprocating-piston liquid engines with multiple cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
Provided is a half bearing constituting a sliding bearing for a shaft member of an internal combustion engine that is unlikely to cause seizure in a sliding surface even if deflection or whirling of the shaft member occurs during an operation of the internal combustion engine. In a half bearing that constitutes a sliding bearing, a plurality of circumferential-direction grooves are formed to be adjacent to each other in a sliding surface, the sliding surface includes a plane portion that is parallel to an axial line direction and an inclined surface portion that is adjacent to the plane portion, the inclined surface portion is displaced from the plane portion toward an end portion of the sliding surface in the axial line direction such that the sliding surface successively comes close to a back surface, positions of maximum groove depths of the circumferential-direction grooves are located on groove center lines, the groove center lines in the inclined surface portion of the sliding surface are inclined relative to a vertical line toward the end portion of the sliding surface in the axial line direction, a groove inclination angle of the circumferential-direction groove that is the closest to the plane portion is a minimum angle, and the groove inclination angle successively increases toward the end portion of the sliding surface in the axial line direction.
Provided is a half bearing constituting a sliding bearing for a shaft member of an internal combustion engine that is unlikely to cause seizure in a sliding surface even if deflection or whirling of the shaft member occurs during an operation of the internal combustion engine. In a half bearing that constitutes a sliding bearing, a plurality of circumferential-direction grooves are formed to be adjacent to each other in a sliding surface including first and second curved surfaces with different curvatures, the sliding surface includes a plane portion that is parallel to an axial line direction and an inclined surface portion that is adjacent to the plane portion, the inclined surface portion is displaced from the plane portion toward an end portion of the sliding surface in the axial line direction such that the sliding surface successively comes close to a back surface, positions of maximum groove depths of the circumferential-direction grooves are located on groove center lines, the groove center lines in the inclined surface portion of the sliding surface are inclined relative to a vertical line toward the end portion of the sliding surface in the axial line direction, a groove inclination angle of the circumferential-direction grooves that are closest to the plane portion is a minimum angle, and the groove inclination angle successively increases toward the end portion of the sliding surface in the axial line direction.
A ball socket structure is provided, which includes a ball portion and a socket portion, the ball portion and the socket portion being configured to slide against one another, in which the socket portion includes a sliding surface including a PVD coating layer, the sliding surface of the socket portion is a concave spherical surface, and a value (Ds/Rs) of a ratio between a depth Ds of the sliding surface and a radius of curvature Rs of the sliding surface is from 0.05 to 0.70.
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Machine elements, not for land vehicles; shafts, axles or
spindles, machine elements other than land vehicles;
bearings, machine elements not for land vehicles; shaft
couplings or connectors, machine elements not for land
vehicles. Mechanical elements for land vehicles; shafts, axles or
spindles, machine elements for land vehicles; bearings,
machine elements for land vehicles; shaft couplings or
connectors, machine elements for land vehicles.
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Machine elements, not for land vehicles; shafts, axles or
spindles, machine elements other than land vehicles;
bearings, machine elements not for land vehicles; shaft
couplings or connectors, machine elements not for land
vehicles. Mechanical elements for land vehicles; shafts, axles or
spindles, machine elements for land vehicles; bearings,
machine elements for land vehicles; shaft couplings or
connectors, machine elements for land vehicles.
A sliding member including: a soft metal layer formed by stacking a crystal of soft metal, in which a coarse crystal is exposed on a surface of the soft metal layer, the coarse crystal has a particle length of 1.5 μm or more in a plane direction of the surface, and a distribution proportion of the coarse crystal is 5 to 50%, wherein the distribution proportion is a proportion of a circumscribed rectangle in a unit length of a virtual straight line, the circumscribed rectangle is applied to the coarse crystal appearing in a cross section of the soft metal layer, and the virtual straight line passing through the circumscribed rectangles in the cross section and parallel to a surface reference line of the soft metal layer is formed, an upper side of the circumscribed rectangle is parallel to the surface reference line of the soft metal layer, and the surface reference line is an average height of the surface of the soft metal layer appearing in the cross section.
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B32B 37/18 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
B32B 38/00 - Ancillary operations in connection with laminating processes
This recovery system 11 is provided with: a positive electrode and a negative electrode, which are arranged so as to have active materials thereof face each other, thereby forming a first flow channel 12 between the active materials, and which adsorb ions in accordance with the direct-current potential acting between the active materials; a second flow channel 14 which forms a passage for a liquid 18 that contains ions at a predetermined concentration or more; and a third flow channel 16 which connects a passage for a diluent 19 to the second flow channel 14 so as to mix the liquid 18 with the diluent 19, thereby introducing a liquid that contains ions at a concentration which is less than the predetermined concentration into the first flow channel 12. Consequently, the present invention is able to provide a recovery system which effectively adsorbs ions.
This CDI device comprises: a positive electrode and a negative electrode that make active materials 38a, 38b face each other to form a flow path therebetween and suction ions 44 on the basis of an electric double layer 43 formed on the surfaces of the active materials 38a, 38b inside a pore 42; a concentration control device that maintains the concentration of ions included in a liquid flowing in the flow path above a predetermined threshold value; and a control circuit that controls the potential applied to the positive electrode and the negative electrode below an upper limit determined according to the detected concentration of ions. Accordingly, it is possible to provide a CDI device that more efficiently suctions ions while avoiding electrolysis.
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Machine parts, namely, bearings and bushings; axles for machines; spindles being parts of machines; bearings, as parts of machines; engine bearings; shaft couplings as parts of machines Axles for land vehicles; spindles for land vehicles; bearings for land vehicles; wheel bearings for land vehicles; axle bearings for land vehicles; shaft couplings for land vehicles
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Machine parts, namely, bearings and bushings; axles for machines; spindles being parts of machines; bearings, as parts of machines; engine bearings; shaft couplings as parts of machines Axles for land vehicles; spindles for land vehicles; bearings for land vehicles; wheel bearings for land vehicles; axle bearings for land vehicles; shaft couplings for land vehicles
A bearing device includes a piston arranged in a cylinder of a rotor, and a half bearing mounted on the piston to support a roller. The piston includes a recessed holding surface, and holding side surfaces on both axial sides thereof. Each holding side surface includes a ridge portion having an arc-shaped or elliptic-arc-shaped profile protruding toward a radially inner side of the piston. The half bearing includes a partially cylindrical portion, and protruding portions at a circumferential center thereof. Each protruding portion has a protruding portion end face which includes a central recessed surface, and two support recessed surfaces located on both circumferential sides thereof, that have an arc shape or an elliptic arc shape to correspond to the profile of the ridge portion, so that only the two support recessed surfaces are in contact with the ridge portion.
F01B 13/06 - Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement
F01B 1/06 - Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders in star or fan arrangement
A bearing device includes a piston arranged in a cylinder of a rotor, and a half bearing mounted on the piston to support a roller. The piston includes a recessed holding surface, and holding side surfaces on both axial sides thereof. Each holding side surface includes a ridge portion having an arc-shaped or elliptic-arc-shaped profile protruding toward a radially inner side of the piston. The half bearing includes a partially cylindrical portion, and protruding portions protruding from axial end faces thereof. Each protruding portion has a protruding portion end face which includes a central recessed surface, and two support recessed surfaces located on both circumferential sides thereof, that have an arc shape or an elliptic arc shape to correspond to the profile of the ridge portion, so that only the two support recessed surfaces are in contact with the ridge portion.
F01B 13/06 - Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement
F01B 1/06 - Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders in star or fan arrangement
F02B 57/10 - Engines with star-shaped cylinder arrangements with combustion space in centre of star
45.
Bearing, coupling mechanism for use therein, and preload application method for use in coupling mechanism
Proposed is a novel coupling mechanism capable of applying a preload to a ball portion and a socket portion which constitute a coupling mechanism of a titling pad bearing, without using a spring element.
A sliding member includes a resin overlay layer on a sliding surface side coming into sliding contact with a mating member. The resin overlay layer has a surface roughness parameter Rk satisfying 0.4≤Rk≤1.2, and a surface area ratio S=S2/S1 calculated when an area of an arbitrary measurement field of view is designated by S1 and a surface area of the measurement field of view is designated by S2 satisfies 2.5≤S≤4.5.
A sliding member includes a resin layer that slides with a mating member. The resin layer contains polytetrafluoroethylene and an additive. The resin layer includes a plurality of rich regions formed in a thickness direction of the resin layer, the rich regions having a higher concentration of the polytetrafluoroethylene than other regions.
A sliding member wherein the fatigue resistance of a surface layer obtained by dispersing a hard material in a soft metal matrix is enhanced. A sliding member comprising a substrate layer and a surface layer, wherein the surface layer is provided with a metal matrix and a hard material that is harder than the matrix and is dispersed in the matrix, the hardness of the hard material has a gradient, and the hardness gradient decreases gradually from the inside of the hard material to the surface thereof.
Provided is a sliding member for a thrust bearing. The sliding member includes a back-metal layer and a sliding layer, and has a partially annular shape. The sliding layer includes a synthetic resin and has a sliding surface. In a center line region of the sliding layer, the sliding layer has a linear expansion coefficient KS in a direction parallel to a circumferential direction of the sliding member, a linear expansion coefficient KJ in a direction parallel to a radial direction of the sliding member, and a linear expansion coefficient KT in a direction perpendicular to the sliding surface, and the linear expansion coefficients KS, KJ, and KT satisfy the following relations (1) and (2): Relation (1): 1.1≤KS/KJ≤2; and Relation (2): 1.3≤KT/{(KS+KJ)/2}≤2.5.
Provided is a sliding member for a journal bearing. The sliding member includes a back-metal layer and a sliding layer, and has a partially cylindrical shape. The sliding layer includes a synthetic resin and has a sliding surface. The sliding layer has a linear expansion coefficient KS in a direction parallel to a circumferential direction of the sliding member, a linear expansion coefficient KJ in a direction parallel to a center axis direction of the sliding member, and a linear expansion coefficient KT in a direction perpendicular to the sliding surface, and the linear expansion coefficients KS, KJ, and KT satisfy the following relations (1) and (2): Relation (1): 1.1≤KS/KJ≤2; and Relation (2): 1.3≤KT/{(KS+KJ)/2}≤2.5.
In order to enable a bearing system in which a plurality of bearings operate simultaneously or in association with each other to achieve an optimal overall performance: this bearing system is equipped with a bearing A and a measurement execution unit A therefor, a bearing B and a measurement execution unit B therefor, and a control unit for controlling the measurement execution unit A and the measurement execution unit B; the control unit transmits an instruction to the measurement execution unit A and the measurement execution unit B to enable execution of the performance required of the bearing system. The measurement execution unit A and the measurement execution unit B respectively operate the bearing A and the bearing B under an instructed operation condition. The relationship of an operation condition A of the bearing A and an operation condition B of the bearing B to an index, which indicates each of the operational states of the bearing A and the bearing B when the bearing A and the bearing B are operated under the operation conditions therefor, has been measured and saved in advance. The control unit references the relationship and accordingly transmits an instruction to the measurement execution unit A and the measurement execution unit B.
F16C 17/24 - Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired conditions, e.g. for preventing overheating, for safety
F16C 17/26 - Systems consisting of a plurality of sliding-contact bearings
A sliding member provided with a resin overlay layer on the sliding-surface side of a bearing alloy layer. The resin overlay layer has a resin binder and 20 volume% or greater of solid lubricant particles dispersed in the resin binder and having an anisotropic shape. It is assumed that the sliding surface is 0°, a virtual axis perpendicular to the sliding surface is 90°, the angle formed by a straight line and the major axis of the particles is θ, and the total number of particles included in a given observation region of the resin binder is N. In this case, among the particles the ratio R1 = N1/N of the number N1 of first particles for which the angle θ of the major axis is 70° ≤ θ ≤ 90° is 3% ≤ R1 ≤ 20%, and among the particles the ratio R2 = N2/N of the number N2 of second particles for which the angle θ is θ ≤ 20° is 35% ≤ R2 ≤ 65%.
A sliding member includes a back-metal layer and a sliding layer on the back-metal layer, and the sliding layer has a sliding surface. The sliding layer includes a synthetic resin and fibrous particles dispersed in the synthetic resin. A volume ratio of the fibrous particles in the sliding layer is 1 to 15%, and the fibrous particles are made of semi-graphite having a nano indenter hardness of 1000 to 5000 MPa. An average aspect ratio of the fibrous particles is not less than 5, where an aspect ratio is defined as a ratio of a major axis to a minor axis of the fibrous particle viewed from the sliding surface. An average grain size of the fibrous particles in cross-sectional view perpendicular to the sliding surface is 5 to 50 μm.
A sliding member incudes a back-metal layer and a sliding layer made of a copper alloy. The back-metal layer is made of a hypoeutectoid steel including 0.07 to 0.35 mass % of carbon, and has a structure including a ferrite phase and pearlite. The back-metal layer includes a pore existing region including a plurality of closed pores having an average size of 1 to 10 μm. The pore existing region extends from the bonding surface toward an inner portion of the back-metal layer and having a thickness of 2 to 20 μm. At least a part of the plurality of closed pores has contour that is partially formed by the bonding surface in a cross-sectional view. A ratio V2/V1 of a total volume V2 of the closed pores to a volume V1 of the pore existing region is 0.02 to 0.08.
A semi-cylindrical half bearing for a sliding bearing includes at least one axial groove formed on its inner circumferential surface that includes a smooth groove surface formed back away from the inner circumferential surface toward a radially outer side of the half bearing. The groove surface forms a convex curve toward the radially outer side in a cross-section perpendicular to the axial direction of the half bearing, and forms a straight line extending in the axial direction in a cross-section parallel to the axial direction. The half bearing further includes a plurality of axial narrow grooves formed on the groove surface so as to be back away from the groove surface toward the radially outer side, that extend in the axial direction of the half bearing.
F16C 17/24 - Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired conditions, e.g. for preventing overheating, for safety
A semi-cylindrical half bearing for a sliding bearing includes at least one axial groove formed on its inner circumferential surface that includes a smooth groove surface formed back away from the inner circumferential surface toward a radially outer side. The half bearing further includes a plurality of axial narrow grooves and a plurality of circumferential narrow grooves that are formed further back away from the groove surface toward the radially outer side, and extend in circumferential and axial directions, respectively, so as to cross each other. A depth of the axial narrow groove from the groove surface is greater than a depth of the circumferential narrow groove from the groove surface, and a width of the axial narrow groove on the groove surface is greater than a width of the circumferential narrow groove on the groove surface.
A sliding member includes a back-metal layer and a sliding layer made of a copper alloy. The back-metal layer is made of a hypoeutectoid steel including 0.07 to 0.35 mass % of carbon, and has a structure including a ferrite phase and pearlite. The back-metal layer includes a pore existing region including a plurality of closed pores that are not open to a bonding surface when viewing a cross-section perpendicular to a sliding surface. The closed pores have an average size of 5 to 15 μm. The pore existing region extends from the bonding surface toward an inner portion of the back-metal layer, and has a thickness of 10 to 60 μm. A ratio V2/V1 of a total volume V2 of the closed pores to a volume V1 of the pore existing region is 0.05 to 0.1.
Provided is a sliding member of an internal combustion engine including a self-detecting material for highly reliable and easy monitoring of damage to the sliding member. A sliding member of an internal combustion engine including a self-detecting material for monitoring damage to the sliding member, wherein the sliding member has a single-layer or multi-layer structure made of a metal, an alloy, and/or a resin material, the self-detecting material is embedded in at least one of the layers constituting the sliding member, and the self-detecting material is configured of at least one kind of material that exhibits a signal characteristic in response to external energy.
Provided is a slide member having an overlay on a bearing alloy. The overlay has a thickness T and has a sliding surface and an interface with respect to the bearing alloy. The overlay includes an intermetallic compound and a matrix of Bi or a Bi alloy. In a thickness domain constituting 70%-75% of the thickness T of the overlay from the sliding surface to the interface, the volume proportion of the intermetallic compound is 10%-70%.
A sliding member includes a back-metal layer including an Fe alloy and a sliding layer including a copper alloy including 0.5 to 12 mass % of Sn and the balance of Cu and inevitable impurities. A cross-sectional structure of the sliding layer includes first copper alloy grains in contact with a bonding surface and second copper alloy grains not in contact with the bonding surface. The first and second grains have an average grain size D1 and D2 respectively. D1 is 30 to 80 μm; and D1/D2=0.1 to 0.3. In the cross-sectional structure, the second grains includes third grains that includes internal grains therein that are not in contact with a grain boundary of the third grains. A total area S1 of the third grains and a total area of the second copper alloy grains S2 satisfy: S0/S2=0.25 to 0.80.
C22C 9/02 - Alloys based on copper with tin as the next major constituent
B22D 19/08 - Casting in, on, or around, objects which form part of the product for building up linings or coverings, e.g. of anti-frictional metal
B22D 19/00 - Casting in, on, or around, objects which form part of the product
B22D 13/02 - Centrifugal castingCasting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
A sliding member includes a back-metal layer including an Fe alloy and a sliding layer including a copper alloy including 0.5 to 12 mass % of Sn and the balance of Cu and inevitable impurities. The sliding layer has a cross-sectional structure perpendicular to a sliding surface of the sliding layer. The cross-sectional structure includes first copper alloy grains that are in contact with a bonding surface of the back-metal layer and second copper alloy grains that are not in contact with the bonding surface. The first copper alloy grains has an average grain size D1 and the second copper alloy grains has an average grain size D2. D1 and D2 satisfy the following relations: D1 is 30 to 80 μm; and D1/D2=0.1 to 0.3.
The invention relates to a bearing assembly (21, 22) for a turbo-engine, comprising a bearing and parts of a bearing temperature detecting device (60), the bearing comprising: a main body (24) having a thermoplastic bearing layer (28) that forms a bearing surface (30), a space (38) is defined in the interior of the main body (24) and of the thermoplastic bearing layer (28) at least for accommodating parts of the bearing temperature detecting device (60), wherein the space (38) comprises a through hole (42) having a first opening (36) located in the bearing surface (30) of the thermoplastic bearing layer (28) and a second opening (40) located in the sec- ond surface (32) of the main body (24), wherein the parts comprise a temperature conducting element (46) having a peripheral surface and a first end (48) with a first end surface, a temperature sensor (64) in contact with the temperature conducting element (46) and a securing fixture (53) that attaches the temperature conducting element. To provide a bearing assembly with improved sealing properties, the first opening (36) of the through hole (42) comprises a chamfer (43) or a step and the first end (48) of temperature conducting element (46) comprises a head which is correspondingly shaped to the chamfer (43) or step in a form fitting manner with the chamfer (43) or step. For reduced downtime in a case of a temperature sensor (64) defect, the center-axis of the temperature sensor extends transversely to the center-axis of the temperature conducting element.
F16C 17/24 - Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired conditions, e.g. for preventing overheating, for safety
F16C 33/20 - Sliding surface consisting mainly of plastics
F01D 17/08 - Arrangement of sensing elements responsive to condition of working fluid, e.g. pressure
F16C 17/06 - Sliding-contact bearings for exclusively rotary movement for axial load only with tiltably-supported segments, e.g. Michell bearings
F01D 11/00 - Preventing or minimising internal leakage of working fluid, e.g. between stages
F01D 21/12 - Shutting-down of machines or engines, e.g. in emergencyRegulating, controlling, or safety means not otherwise provided for responsive to temperature
F01D 25/16 - Arrangement of bearingsSupporting or mounting bearings in casings
G01K 1/14 - SupportsFastening devicesArrangements for mounting thermometers in particular locations
G01K 1/16 - Special arrangements for conducting heat from the object to the sensitive element
G01K 13/08 - Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies in rotary movement
Disclosed herein is a sliding member for an internal-combustion engine of an automobile or the like. The sliding member has excellent sliding properties due to high oleophilicity of its sliding surface achieved by adjusting the surface texture of a resin layer forming the sliding surface, which makes it possible to effectively prevent wear or seizure of the sliding member and a counterpart sliding member thereof. The sliding member includes a resin layer provided on a surface of a base material, in which the resin layer has a surface roughness of 1.05 or more, preferably 1.07 or more. The mean spacing (s) between local peaks of the resin layer may be in the range of 2 μm or more but 12 μm or less, but may be preferably in the range of 2 μm or more but 10 μm or less. Further, the mean height (Rc) of the resin layer may be in the range of 0.5 μm or more but 5.0 μm or less, but may be preferably in the range of 0.5 μm or more but 3.0 μm or less.
Disclosed herein is a sliding member having an alloy overlay layer that comes into sliding contact with a counterpart member thereof and has improved fatigue resistance. The sliding member comprises a base material layer and an alloy overlay layer formed on the base material layer, in which the alloy overlay layer has a soft metal phase made of tin and precipitated in a metallic matrix phase made of aluminum, and when an average aspect ratio of the soft metal phase is defined as A, and its standard deviation is defined as Aσ, A+Aσ is 3.0 or less. In this case, the soft metal phase has a shape close to a sphere without elongating in a certain direction.
int, second. A dispersion index of the particles having the major axis length of 20 μm or longer is 5 or more, both in the sliding surface side region in view of the first cross-section and in the interface side region in view of the second cross-section.
F16C 33/12 - Structural compositionUse of special materials or surface treatments, e.g. for rust-proofing
A01J 5/007 - Monitoring milking processesControl or regulation of milking machines
B32B 15/098 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
B32B 15/088 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyamides
B32B 15/085 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyolefins
B32B 15/092 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising epoxy resins
int, cir. A dispersion index of the particles having the major axis length of 20 μm or longer is 5 or more, both in the sliding surface side region in view of the axial cross-section and in the interface side region in view of the circumferential cross-section.
F16C 17/12 - Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
F16C 33/12 - Structural compositionUse of special materials or surface treatments, e.g. for rust-proofing
F16C 33/20 - Sliding surface consisting mainly of plastics
C08K 7/00 - Use of ingredients characterised by shape
B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
B32B 5/14 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
F16C 33/24 - BrassesBushesLinings with different areas of the sliding surface consisting of different materials
An Al-based bearing alloy and a slide bearing incorporating the alloy exhibit high corrosion resistance and maintain high strength for a long period of time even in a high temperature environment. The Al-based bearing alloy and slide bearing includes an Al matrix, and acicular compounds which are needle-shaped that precipitate at a plurality of sites in a structure of the Al matrix, and that have a minor diameter and a major diameter.
F16C 33/12 - Structural compositionUse of special materials or surface treatments, e.g. for rust-proofing
C22C 21/02 - Alloys based on aluminium with silicon as the next major constituent
C22C 21/12 - Alloys based on aluminium with copper as the next major constituent
C22C 21/14 - Alloys based on aluminium with copper as the next major constituent with silicon
C22C 21/18 - Alloys based on aluminium with copper as the next major constituent with zinc
C22F 1/043 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
C22F 1/053 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with zinc as the next major constituent
C22F 1/057 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent
C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
This half thrust bearing having a half-ring shape has: a sliding surface for receiving force in the axial direction; a back surface opposed to the sliding surface; and a resin covering layer on the sliding surface. The half thrust bearing is characterized in that the thickness of the resin covering layer is greatest at the circumferential central part of the half thrust bearing, and becomes lesser toward both circumferential ends of the half thrust bearing. The present invention also pertains to a thrust bearing, a bearing device, and an internal combustion engine.
A half thrust bearing for a crankshaft includes a back metal layer defining a first surface and a second surface, and a bearing alloy layer on the first surface to form a slide surface, and thrust relieves formed adjacent to both circumferential end surfaces and having a thrust relief surface consisting of the bearing alloy layer. Each circumferential end surface of the back metal layer includes an exposed end surface adjacent to the second surface, and a transition surface adjacent to the first surface. The bearing alloy layer further includes an extension portion covering the transition surface and having extension end surface adjacent to the exposed end surface, the extension end surface and the exposed end surface extending at least partly in the same plane.
A half thrust bearing includes a back metal layer, a bearing alloy layer defining a slide surface, and two thrust relieves formed adjacent to both circumferential end surfaces of the half thrust bearing and each including a thrust relief surface. The back metal layer includes an exposed end face configuring at least a part of the circumferential end surface, an exposed slant surface configuring at least a part of the thrust relief surface, and a transition surface formed between the exposed end face and the exposed slant surface. The transition surface is covered with a cover member including a cover end surface configuring at least a part of the circumferential end surface and a cover slant surface configuring at least a part of the thrust relief surface.
A bearing member according to an embodiment of the present invention is formed into a single cylindrical shape or a cylindrical shape divided into arcs along a circumferential direction, and is assembled to a housing on an outer peripheral side of the bearing member. The bearing member includes an outer peripheral surface provided on a side opposed to an inner peripheral surface of the housing. A maximum height Rz (μm) of a surface roughness of the outer peripheral surface is set as 2.00 μm≤Rz≤4.00 μm, and a value of ratio between an average protruding-peak height Rpk (μm) and a load length rate Mr1 (%), that is a load curve parameter for the surface roughness is set as 0.010≤Rpk/Mr1≤0.100.
The purpose of the present invention is to provide: a slide member in which the bonding strength between a Bi-containing copper alloy layer and a substrate is enhanced; and a method for manufacturing the slide member. The slide member according to the present invention has a substrate and a copper alloy layer. The copper alloy layer comprises a copper alloy containing 4.0-25.0 mass % of Bi and has a structure in which Bi phases are scattered in a copper alloy structure. The volume ratio of Bi phases in the region of the copper alloy layer extending 10 μm from the bonding interface with the substrate is not more than 2.0%. The slide member is manufactured by casting a molten copper alloy onto the substrate and causing the copper alloy to unidirectionally solidify.
A sliding member includes a bearing alloy layer, a solid lubricant layer, particles and a covering portion. The solid lubricant layer is provided on a sliding surface side of the bearing alloy layer and is deposited on the bearing alloy layer. The particles form the solid lubricant layer and are made of metal sulfide. The covering portion is provided over outermost surfaces of the particles on the sliding surface side and are made of metal oxide including the same metal element as a metal element constituting the particles.
A sliding member of the present embodiment includes a bearing alloy layer and a coating layer provided on a sliding surface side thereof. The coating layer has a resin binder with sulfide particles dispersed therein. A covering portion is provided over specific particles and is made of metal oxide comprising the same metal element as a metal element constituting the sulfide particles. When measured by an X-ray photoelectron spectroscopy and an X-ray diffraction method, a ratio of a peak height of the metal oxide to a peak height of metal sulfide by the X-ray photoelectron spectroscopy is from 0.10 to 0.50, and a ratio of the peak height of the metal oxide to the peak height of the metal sulfide by the X-ray diffraction method is 0.10 or less.
b) included in the liquid (53) and having a gas at a second temperature that is lower than the first temperature. Therefore, it is possible to provide a cleaning liquid that exhibits a remarkably better cleaning effect than ever before.
A bearing device includes a base plate, a plurality of sliding pads and support members. The sliding pad is movable relative to the base plate. The support members are located between the base plate and the sliding pad, and shift a position of a load supporting point in a circumferential direction of the base plate, the load supporting point serving as a point for supporting a load received from the sliding pad. When any virtual flat surface perpendicular to a rotating shaft member is considered as a reference surface, and when a distance from the reference surface through the load supporting point to an end of the sliding pad at the opposite side to the base plate is defined as a setting distance, a position of the load supporting point is shifted in a circumferential direction of the base plate with no change in the setting distance.
In order to enable a bearing system in which a plurality of bearings operate simultaneously or in association with each other to achieve an optimal overall performance: this bearing system is equipped with a bearing A and a measurement execution unit A therefor, a bearing B and a measurement execution unit B therefor, and a control unit for controlling the measurement execution unit A and the measurement execution unit B; the control unit transmits an instruction to the measurement execution unit A and measurement execution unit B to enable execution of the performance required of the bearing system; the measurement execution unit A and the measurement execution unit B respectively operate the bearing A and the bearing B under an instructed operation condition; the relation of an operation condition A of the bearing A and an operation condition B of the bearing B to an index, which indicates the operational states of the bearing A and the bearing B when the bearing A and the bearing B are operated under the operation conditions therefor, is measured and saved in advance; and the control unit references the relation and accordingly transmits an instruction to the measurement execution unit A and the measurement execution unit B.
F16C 17/24 - Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired conditions, e.g. for preventing overheating, for safety
F16N 29/00 - Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditionsUse of devices responsive to conditions in lubricating arrangements or systems
F16C 17/03 - Sliding-contact bearings for exclusively rotary movement for radial load only with tiltably-supported segments, e.g. Michell bearings
Provided is a semi-cylindrical shaped half bearing. The half bearing has an inner surface forming a sliding surface. The sliding surface includes a plurality of recesses. Each recess has a smooth recess surface recessed from the sliding surface toward an outer diameter side of the half bearing. The recess surface forms a convex curve toward the outer diameter side of the half bearing in a cross-sectional view in any direction perpendicular to the sliding surface. The recess surface includes a plurality of circumferential grooves. The circumferential grooves are recessed from the recess surface toward the outer diameter side of the half bearing. The circumferential grooves extend along a circumferential direction of the half bearing so that smooth surfaces and the circumferential grooves are alternately arranged on the recess surface.
Provided is a sliding member including: a back-metal layer and a sliding layer including a copper alloy. The back-metal layer includes a hypoeutectoid steel including 0.07 to 0.35 mass % of carbon and has a structure including a ferrite phase and pearlite. The back-metal layer has a high ferrite phase portion at a bonding surface between the back-metal layer and the sliding layer. A volume ratio Pc and a volume ratio Ps satisfy Ps/Pc≤0.4, where the volume ratio Pc is a volume ratio of pearlite in the structure at a center portion in a thickness direction of the back-metal layer, and the volume ratio Ps is a volume ratio of pearlite in the high ferrite phase portion.
A sliding member according to the present embodiment comprises a back metal layer, a bearing alloy layer, and an intermetallic compound. The bearing alloy layer is layered upon the back metal layer and forms a sliding surface on the side opposite to the back metal layer. The intermetallic compound is included in the structure of the bearing alloy layer and is harder than the average hardness of the entire bearing alloy layer, and in the bearing alloy layer, the average diameter of the particles of the intermetallic compound on the side close to the sliding surface is larger than that on the side close to the back metal layer.
Provided is a slide member for an internal combustion engine of an automobile and the like, the slide member being provided with a good sliding characteristic by having increased lipophilicity of the slide surface due to adjustment of the surface property of a resin layer forming the slide surface, thereby making it possible to effectively prevent wear and seizure of the slide member and a counterpart slide member. Provided is a slide member in which a resin layer is disposed on a surface of a base material, wherein the resin layer has a surface roughening ratio of not less than 1.05 and more preferably not less than 1.07. Local peaks of the resin layer may have an average interval (s) in a range of not less than 2 μm and not more than 12 μm and more preferably in a range of not less than 2 μm and not more than 10 μm. The resin layer may have an average height (Rc) in a range of not less than 0.5 μm and not more than 5.0 μm and more preferably in a range of not less than 0.5 μm and not more than 3.0 μm.
In order to improve the fatigue resistance of an alloy overlay layer in sliding contact with a counterpart member in a sliding member, this sliding member is equipped with a base material layer and an alloy overlay layer formed on the base material layer, wherein the alloy overlay layer is provided with a soft metal phase comprising tin deposited in a metal parent phase comprising aluminum. When the average aspect ratio of the soft metal phase is A and the standard deviation thereof is Aσ, A + Aσ is 3.0 or less. Thus, the soft metal layer does not lengthen in a specific direction, and instead approximates a spherical shape.
Provided is a semi-annular shaped half thrust bearing. The half thrust bearing has a sliding surface and a back surface opposite to the sliding surface. The sliding surface includes a plurality of recesses. Each recess has a recess surface recessed from the sliding surface toward the back surface. The recess surface is convex toward the back surface in cross-sectional view in a center line direction of the half thrust bearing. The recess surface includes a plurality of grooves. The grooves are recessed from the recess surface toward the back surface. The grooves extend in the center line direction so that smooth surfaces and the grooves are alternately arranged on the recess surface in a horizontal direction of the half thrust bearing.
Provided are a slide material in which the joining strength between a Bi-containing copper alloy layer and a substrate is improved, and a method for manufacturing the slide material. The slide material according to the present invention has a substrate and a copper alloy layer. The copper alloy layer comprises a copper alloy containing 4.0-25.0 mass % of Bi and has a structure in which Bi phases are scattered in a copper alloy structure. The contact area ratio of Bi phases of the copper alloy layer at the joining interface with the substrate is not more than 2.0%. The slide material is manufactured by casting a molten copper alloy onto a substrate and causing the copper alloy to solidify unidirectionally.
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
B22D 19/16 - Casting in, on, or around, objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
F16C 33/12 - Structural compositionUse of special materials or surface treatments, e.g. for rust-proofing
F16C 33/14 - Special methods of manufactureRunning-in
B22D 27/04 - Influencing the temperature of the metal, e.g. by heating or cooling the mould
C22C 9/05 - Alloys based on copper with manganese as the next major constituent
C22C 9/01 - Alloys based on copper with aluminium as the next major constituent
C22C 9/06 - Alloys based on copper with nickel or cobalt as the next major constituent
C22C 9/10 - Alloys based on copper with silicon as the next major constituent
B22D 13/02 - Centrifugal castingCasting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
C22C 9/02 - Alloys based on copper with tin as the next major constituent
B22D 19/00 - Casting in, on, or around, objects which form part of the product
Provided is a semi-annular-shaped half thrust bearing having a sliding surface for receiving an axial force and a back surface opposite to the sliding surface. The sliding surface includes a plurality of recesses. Each recess has a recess surface recessed from the sliding surface toward the back surface of the half thrust bearing. The recess surface is convex toward the back surface of the half thrust bearing in cross-sectional view in a circumferential direction of the half thrust bearing. The recess surface includes a plurality of circumferential grooves recessed from the recess surface toward the back surface of the half thrust bearing. The circumferential grooves extend along the circumferential direction of the half thrust bearing, and smooth surfaces and the circumferential grooves are alternately arranged on the recess surface.
F16C 19/02 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
F16C 17/04 - Sliding-contact bearings for exclusively rotary movement for axial load only
Provided is a vehicle that performs position control in accordance with a travel condition such as acceleration/deceleration. In a vehicle 100 according to the present invention that can be propelled by an activating force of a driver, at least one of a front wheel section and a rear wheel section is structured from a left/right pair of wheels 101, 102, a condition of the vehicle 100 is detected, the rotational force of each of the pair of wheels 101, 102 can be controlled independently of one another in response to the detection, and synchronous and equal braking forces can be produced for each of the pair of wheels 101, 102.
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
B62J 99/00 - Subject matter not provided for in other groups of this subclass
Provided is a vehicle that performs position control in accordance with a travel condition such as turning or a change in a road surface. In a vehicle 100 according to the present invention that can be propelled by an activating force of a driver, at least one of a front wheel section and a rear wheel section is structured from a left/right pair of wheels 101, 102, a condition of the vehicle 100 is detected, the rotational force of each of the pair of wheels 101, 102 can be controlled independently of one another in response to the detection, and the pair of wheels 101, 102 are attached to the vehicle 100 via a suspension mechanism 113.
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
B62J 99/00 - Subject matter not provided for in other groups of this subclass
A cleaning liquid has: a static liquid (13); a second microbubble group (26) formed by a gas at a first temperature, the second microbubble group (26) being contained in the static liquid (13); a dynamic liquid (22) that flows toward an object to be cleaned (W), which is held in the static liquid (13); and a second microbubble group (26) formed by a gas at a second temperature different from the first temperature, said second microbubble group (26) flowing toward the object to be cleaned (W), which is caught in the flow of the dynamic liquid (22). This makes it possible to provide a cleaning liquid that manifests a cleaning effect remarkably better than in the past.
B08B 3/10 - Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
Provided is a semi-cylindrical-shaped half bearing having an inner surface including a center zone and end zones each including a plurality of recesses. Each recess includes a groove forming zone adjacent to the peripheral edge and including a plurality of circumferential grooves extending from the peripheral edge along the circumferential direction. An area ratio S2 of an area of the groove forming zone to an area of the recess in the end zone is larger than an area ratio S1 in the center zone. A maximum depth D4 of the circumferential groove in the end zone is larger than a maximum depth D2 of the circumferential groove in the center zone. A sliding bearing of the present invention includes the above half bearing.
This half thrust bearing having a half-ring shape has: a sliding surface for receiving force in the axial direction; a back surface opposed to the sliding surface; and a resin covering layer on the sliding surface. The half thrust bearing is characterized in that the thickness of the resin covering layer is greatest at the circumferential central part of the half thrust bearing, and becomes lesser toward both circumferential ends of the half thrust bearing. The present invention also pertains to a thrust bearing, a bearing device, and an internal combustion engine.
A main bearing for a journal portion of a crankshaft includes a pair of upper and lower half bearings forming a cylindrical shape. Each half bearing includes a main cylindrical portion including a circumferentially central portion and having a slide surface, and crush reliefs formed on both circumferential sides of the slide surface. Only the upper half bearing includes an oil groove on its inner peripheral surface, and an oil hole pierced from the oil groove to an outer peripheral surface. The lower half bearing includes an axial groove on the slide surface that is arranged apart from the circumferentially central portion toward the forward side by a circumferential angle of 10° or more, and apart from the crush relief located on the forward side by a circumferential angle of 10° or more.
A connecting rod bearing for a crankpin of a crankshaft of an internal combustion engine includes a pair of half bearings forming a cylindrical shape. Each half bearing has a main cylindrical portion including a circumferentially central portion of the half bearing, and crush reliefs formed on both circumferential sides of the main cylindrical portion with a wall thickness being smaller than that of the main cylindrical portion. At least one half bearing has an axial groove which extends in an axial direction on a slide surface of the main cylindrical portion, and is apart from the circumferentially central portion by a circumferential angle of 10° or more toward a forward side in a rotation direction of the crankpin, and apart from the crush relief by a circumferential angle of 10° or more toward the circumferentially central portion.
Disclosed herein is a sliding member, such as a sliding bearing, including a resin overlay layer having improved conformability. The sliding member includes a bearing alloy layer and a resin overlay layer formed on the bearing alloy layer, wherein the resin overlay layer includes a solid lubricant phase, a binder resin phase, and a cushion phase, and an area ratio of the cushion phase is 0.5% or more but 5.0% or less.
Provided is a guide roller for a vehicular slide door. The guide roller has an annular metal inner ring; a retainer holding a bearing; an annular metal outer ring and a sliding layer including a synthetic resin. When the sliding layer is sectionalized into a sliding surface side area, an intermediate area and an interface side area, from the sliding surface to an interface with the outer ring, the synthetic resins in the sliding surface side area, the intermediate area and the interface side area have, respectively, a degree of crystallizations X1, X2 and X3 and nanoindenter hardnesses Y1, Y2 and Y3 wherein X2−X1 is less than 5%, and X2−X3 is less than 5% and wherein Y2 is not less than 115% of Y1, and Y2 is not less than 115% of Y3.
Provided is a semi-cylindrical shaped half bearing. The half bearing has an inner surface forming a sliding surface and including a plurality of recesses. Each recess has a smooth recess surface and a peripheral edge. The recess surface forms a convex curve toward the outer diameter side of the half bearing in cross-sectional view in a direction parallel to a circumferential direction of the half bearing. The recess includes a groove forming zone adjacent to the peripheral edge of the recess. The groove forming zone includes a plurality of circumferential grooves. The circumferential grooves extend from the peripheral edge of the recess along the circumferential direction of the half bearing. The present invention also provides a cylindrical sliding bearing including the above half bearing.
A cleaning fluid is provided with: a static liquid (13) at a first temperature; a dynamic liquid (16) flowing toward a target article held in the static liquid (13); and a fine bubble group (22) formed by a gas at a second temperature different from the first temperature, and flowing toward the target article by being enveloped in the flow of the dynamic liquid (16). Thus, it is possible to provide a cleaning fluid that exhibits a cleaning effect dramatically better than those up to now.
A half thrust bearing having a semi-annular shape includes a sliding surface for receiving an axial force of a crankshaft of an internal combustion engine, and a rear surface on an opposite side of the sliding surface, and defines a reference plane on the rear surface side that is perpendicular to an axial direction. The sliding surface includes a flat surface portion near a circumferentially central portion and in parallel with the reference plane, and inclined surface portions on both sides of the flat surface portion in a circumferential direction. At any radial positions of the half thrust bearing, an axial distance between the reference plane and the sliding surface is maximum at the flat surface portion, and is reduced in the inclined surface portions toward both circumferential end portions of the half thrust bearing.
A half thrust bearing includes a sliding surface for receiving an axial force of a crankshaft of an engine, and a rear surface on an opposite side thereto. The sliding surface includes a flat surface portion near a circumferentially central portion, and two inclined flat surface portions on both circumferential sides of the flat surface portion. The axial distance between the rear surface and the sliding surface is maximum at the flat surface portion. At any radial positions, the axial distance in each inclined flat surface portion is maximum on a circumferentially central portion side and is reduced toward a circumferential end portion of the half thrust bearing. Each inclined flat surface portion is arranged to form one constant thickness portion extending linearly from a radially inner end to a radially outer end at a circumferential angle of 45°.
Provided is a partially-cylindrical sliding member including a sliding layer including fibrous particles having an average particle size of 5-25 μm dispersed in a synthetic resin at a volume ratio of 10-35% of the sliding layer. The particles having a major axis length ≤20 μm are included at a volume ratio of ≥10% to total particles. A sliding surface side area is defined from the sliding surface and has a thickness of 25% of a sliding layer thickness T, where the fibrous particles having a major axis length of ≥20 μm have a dispersion index of 1.1-6. An interface side area is defined from the interface and has a thickness of 25% of T, where the dispersion index is 1.1-6. An intermediate area is defined between the both areas, where the dispersion index is 0.1 to less than 1.
F16C 33/12 - Structural compositionUse of special materials or surface treatments, e.g. for rust-proofing
F16C 17/00 - Sliding-contact bearings for exclusively rotary movement
F16C 33/20 - Sliding surface consisting mainly of plastics
B32B 5/14 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
F16C 17/02 - Sliding-contact bearings for exclusively rotary movement for radial load only
Provided is a sliding material including a substrate; and a copper alloy layer bonded to the substrate. The copper alloy includes 2.0 to 15.0% by mass of tin. The copper alloy layer includes a sliding body part including a sliding surface, and a gradient region including a bond surface with the substrate. A tin concentration in the gradient region reduces from the sliding body part toward the bond surface. A method for producing the siding material is also provided. The method includes preparing the substrate having a first surface and a second surface opposite to the first surface; melting the copper alloy; casting the molten copper alloy on the first surface of the substrate; and solidifying the copper alloy unidirectionally by cooling the substrate from the second surface by a coolant.
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
C23C 28/02 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of metallic material
B22D 13/02 - Centrifugal castingCasting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
F16C 33/14 - Special methods of manufactureRunning-in
