F04B 27/08 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
F04C 18/04 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents of internal-axis type
F04C 18/32 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group and relative reciprocation between the co-operating members
F04C 18/332 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group and relative reciprocation between the co-operating members with vanes hinged to the outer member and reciprocating with respect to the inner member
F04C 18/39 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group and having a hinged member with vanes hinged to the inner as well as to the outer member
Provided are a motor core that can be cooled effectively, and a motor comprising said motor core. In a preparation step, a through-hole is formed in first electromagnetic steel sheets that are at least some of a plurality of electromagnetic steel sheets 100, and a coating layer 38 that covers the surfaces of the plurality of electromagnetic steel sheets 100 is formed. In a stacking step S4, the plurality of electromagnetic steel sheets 100 are stacked, whereby the through-holes in the first electromagnetic steel sheets are allowed to communicate with each other, and a cooling passage 34 through which cooling medium can flow is formed. In a bonding step S6, mutually adjacent electromagnetic steel sheets 100 are bonded to each other using the coating layer 38, the coating layer 38 providing a seal between the mutually adjacent electromagnetic steel sheets 100.
H02K 1/20 - Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
A sliding member with improved wear resistance. The sliding member including a base layer and a resin coating layer formed on the base layer; where the resin coating layer includes a polyamidimide resin as a binder; a solid lubricant; boehmite particles of greater than 0 volt and less than or equal to 1.0 volt; and inevitable impurities.
A separator includes: an anode separator including an anode side surface on which a fuel gas flow passage groove is formed; a cathode separator including a cathode side surface on which an oxidation gas flow passage groove is formed; a joint portion that extends so as to surround the fuel gas flow passage groove and the oxidation gas flow passage groove, and joins the anode separator and the cathode separator to each other; and an outer peripheral seal portion provided on at least one of the fuel gas flow passage groove and the oxidation gas flow passage groove, extending along the joint portion, and formed so as to overlap the joint portion when viewed in a thickness direction of the separator.
H01M 8/0276 - Sealing means characterised by their form
H01M 8/0258 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
A bearing (10) comprises a tubular substrate (12) and a resin layer (14). The resin layer (14) is joined to an inner peripheral surface (C1) of the substrate (12), and, in the surface on the side of the surface (C2) facing a shaft member that is seated at the inner peripheral surface (C1) side of the substrate (12), a plurality of grooves (MG) are provided running in a direction that intersects the direction of extension (Z) of the shaft member. The resin layer (14) contains a synthetic resin (16) and an additive (18) dispersed in the synthetic resin (16). The average particle size of the additive (18) is less than the depth (d) of the grooves (MG).
A sliding member is formed of a polytetrafluoroethylene resin. The polytetrafluoroethylene resin contains 2.4 wt % or more and 15.6 wt % or less magnesium phosphate, 7.6 wt % or more and 19.9 wt % or less barium sulfate, 0 wt % or more and 10.0 wt % or less molybdenum disulfide, and 8.3 wt % or more and 15.7 wt % or less fired clay.
A sliding member including an overlay capable of realizing good fatigue resistance while preventing interlayer peeling. The sliding member including an overlay formed of an alloy plating film of Bi and Sb, wherein Bi—Sb oxide is formed on a surface of the overlay.
The motor cooling member includes: an oil feed port to which oil is fed; a plurality of discharge ports that discharge oil toward a motor; a basis oil passage connected to the oil feed port; and a plurality of derived oil passages each of which is formed by branching from the basis oil passage so as to correspond to each of the plurality of discharge ports and is formed so as to connect the basis oil passage to each of the discharge ports, and which are formed in different shapes from each other.
Included are: a case; a motor provided in the case and having a rotatable shaft; two blowers provided in the case and including impellers that are fixed to a shaft and are capable of being rotated by the motor, the impellers each having multiple blades disposed at predetermined intervals on a circumference of the corresponding impeller; an intake port provided in the case and configured to take air in between the two blowers; and discharge ports provided in the case to each correspond to a one of the two blowers, each configured to discharge the air taken into a corresponding blower through the intake port to the outside. In each of portions that accommodates corresponding one of the two blowers in the case, a side opposite to a side through which air is taken in is sealed off so as to prevent inflow of air.
B60L 58/26 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
A sliding member (10) includes a base material (12), a porous sintered layer (14) provided on the base material (12), and a resin layer (16) impregnated into the porous sintered layer (14) and provided on the porous sintered layer (14). In the porous sintered layer (14), a porosity decreases from a second surface (S2) opposite to a first surface (S1) closer to the base material, toward the first surface (S1), the first surface and the second surface each being one of end surfaces in the thickness direction, and a decrease rate of the porosity in the thickness direction (Z) in a first region (E1) occupying 50% or more of the thickness of the porous sintered layer (14) from the second surface (S2) toward the first surface (S1) is larger than a decrease rate of the porosity in the thickness direction (Z) in a second region (E2) other than the first region (E1) in the porous sintered layer (14).
Provided is a compressing mechanism in which wear and seizure can be suppressed. The compressing mechanism is provided with a bush 60 having a first sliding surface 61 that slides along an inner surface 45a of a bush hole 45, and a second sliding surface 63 that slides along a side surface 52a of a blade of a piston. The compressing mechanism has at least one of: a first bulging portion 62 formed on one of the first sliding surface 61 and the inner surface 45a such that a gap X between the first sliding surface 61 and the inner surface 45a becomes gradually smaller in the direction in which lubricating oil Y is drawn in between the first sliding surface 61 and the inner surface 45a concomitant with rocking of the bush 60; and a second bulging portion 64 formed on the second sliding surface 63 such that a gap X between the second sliding surface 63 and the side surface 52a becomes gradually smaller in the direction in which the lubricating oil Y is drawn in between the second sliding surface 63 and the side surface 52a concomitant with advancing and retreating of the blade.
F04C 18/32 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group and relative reciprocation between the co-operating members
12.
FUEL BATTERY COMPRESSION MECHANISM AND FUEL BATTERY EQUIPPED WITH SAME
Provided are: a fuel battery compression mechanism capable of suppressing detachment of a biasing part which biases a cell group; and a fuel battery equipped with the same. This fuel battery compression mechanism is equipped with: plates provided at one end portion 11 of a stack case 10 for accommodating a cell group 20 formed by arraying a plurality of fuel battery cells; and biasing parts (first biasing part 50, second biasing part 80) that are provided to the plates and that bias the cell group 20 so as to compress the cell group in the arraying direction. The plates include an end plate 70 and a pressure plate 30 disposed between the end plate 70 and the cell group 20. The fuel battery compression mechanism is equipped with a covering member (first film 60, second film 90) that is provided to, among the end plate 70 and the pressure plate 30, at least one of the plates, and that is provided so as to cover a portion of said plate and the corresponding one of the biasing parts provided to the plate.
A resin material 16 for a sliding member contains a synthetic resin 18, graphite particles 20 dispersed in the synthetic resin 18, and a hard material 24. The synthetic resin 18 contains 5% or more by volume and 30% or less by volume of polytetrafluoroethylene (PTFE) 22. The graphite particles 20 have an average particle diameter of 0.5 μm or more and 5.0 μm or less and have a content of 1% or more by volume and 15% or less by volume in the synthetic resin 18.
Provided is a separator capable of effectively utilizing an area. A plate-shaped separator 100 that constitutes a fuel cell 1 and is arranged adjacent to a membrane electrode assembly 200 to which a fuel gas and an oxidizing gas are supplied, the separator comprising: an anode separator 110 having an anode side surface 110a in which a fuel gas flow channel 117 is formed; a cathode separator 120 having a cathode side surface 120a in which an oxidant gas flow channel 127 is formed; a joint portion 130 that extends so as to surround the fuel gas flow channel 117 and the oxidant gas flow channel 127 and joins the anode separator 110 and the cathode separator 120 to each other; and an outer peripheral seal portion 140 that is provided in the fuel gas flow channel 117 and/or the oxidant gas flow channel 127 and is formed to extend along the joint portion 130 and overlap with the joint portion 130 when viewed in the thickness direction of the separator 100.
[Object] To improve both abrasion resistance and seizure resistance.
[Solution] A copper alloy sliding material is configured, which contains 0.5 to 12.0 mass % of Sn, 2.0 to 8.0 mass % of Bi, and 1.0 to 5.0 vol % of an inorganic compound, the balance being Cu and inevitable impurities, wherein the inorganic compound includes a first inorganic compound having an average particle size of 0.5 to 3.0 μm and a second inorganic compound having an average particle size of 4.0 to 20.0 μm, and wherein a value obtained by dividing a volume fraction of the first inorganic compound by a volume fraction of the second inorganic compound is 0.1 to 1.0.
This semi-floating bearing (2) comprises: a bearing body (20); and a journal bearing surface (21) which is disposed on the inner circumferential surface of the bearing body (20) and radially supports a rotary shaft (50) with an oil film therebetween. The semi-floating bearing (2) comprises a groove section (23) which passes through the journal bearing surface (21) in a direction including the axial direction of the bearing. In the radial cross-section of the semi-floating bearing (2), the journal bearing surface (21) has three of more arc sections (21a) which are alternately disposed in the circumferential direction of the bearing and bulge toward the radial outside; and three or more connection sections (21b) which have smaller curvatures than the arc sections (21a). The groove section (23) is disposed on the arc sections (21a) or on the connection sections (21b). The connection sections (21b) each have a narrowest section (210b) in which a gap between the connection section (21b) and the rotary shaft (50) becomes the narrowest.
A sliding member is provided that includes a base having a surface shaped to support a mating member. A metal sintered layer is not exposed on the surface. A resin coating layer is formed on the surface with a thickness greater than 20 μm.
Provided is a crankshaft that has excellent seizing resistance. A crankshaft (10) comprises journals (11) and pins (12), wherein: the chemical composition in mass percent is C at 0.35-0.40%, Si at 0.70% or less, Mn at 1.00-2:00%, Cr at 0.50% or less, Al at 0.050% or less, N at 0.020% or less, P at 0.020% or less, S at 0.005-0.200%, and the remainder being Fe and impurities; and the journals (11) and the pins (12) both have a surface composition that includes at least 80 vol% of tempered martensite, and a surface hardness of HV450 or less.
C21D 9/30 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for crankshaftsHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for camshafts
A technique capable of reducing the possibility of generation of a Cu—Sb compound in an overlay and the possibility of delamination between layers. A sliding member includes: an overlay including an alloy plating film of Bi and Sb; a lining including an Al alloy; a first intermediate layer including Cu as a main component, and laminated on the lining; and a second intermediate layer including Ag as a main component, and connecting the first intermediate layer and the overlay.
An aluminum alloy for a slide bearing of the present invention contains: 0 mass % or more and 10.0 mass % or less of Sn and 0 mass % or more and 5.0 mass % or less of Si, 0 mass % or more and 2.0 mass % or less of Cu as a solid-solution strengthening component, at least one of 0.05 mass % or more and 0.35 mass % or less of Cr, 0.05 mass % or more and 1.5 mass % or less of Mn, and 0.05 mass % or more and 0.3 mass % or less of Zr as a precipitation strengthening component, 2.3 mass % or more and 6.0 mass % or less of Ag, a part of which is dissolved to form a solid solution and the rest of which is precipitated, and the balance consisting of unavoidable impurities and Al.
Provided is a technique capable of exhibiting high seizure resistance even if a scratch is formed.
The sliding member of the present invention is a sliding member including a base layer and a resin coating layer formed on the base layer, wherein the resin coating layer is formed of a polyamide-imide resin as a binder, barium sulfate particles, molybdenum disulfide particles having an average particle diameter which is 1.0 time or more and 2.8 times or less the average particle diameter of the barium sulfate particles, and unavoidable impurities.
C10M 107/44 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
C10M 111/04 - Lubricating compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular organic compound
C10N 50/08 - Form in which the lubricant is applied to the material being lubricated solid
To provide a technique capable of realizing an appropriate wear resistance in a resin coating layer.
The sliding member of the present invention is a sliding member including a base layer and a resin coating layer formed on the base layer, wherein the resin coating layer is formed of a polyamide-imide resin as a binder, barium sulfate particles, molybdenum disulfide particles, and unavoidable impurities, wherein the resin coating layer is composed of a plurality of overcoated application layers, and wherein the plurality of application layers are different from each other in content of hard particles.
C10M 111/04 - Lubricating compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular organic compound
[Problem] To provide a sliding member comprising an overlay capable of realizing good fatigue resistance while preventing peeling between layers. [Solution] A sliding member comprising an overlay formed by a Bi-Sb alloy plating film, wherein a Bi-Sb oxide is formed on the surface of the overlay.
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
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
C25D 5/50 - After-treatment of electroplated surfaces by heat-treatment
C25D 7/00 - Electroplating characterised by the article coated
F16C 33/12 - Structural compositionUse of special materials or surface treatments, e.g. for rust-proofing
A sliding bearing that is disposed in a cylinder block and supports a journal portion of a crankshaft, including: a semi-annular first split bearing having a first circumferential end surface; and a semi-annular second split bearing having a second circumferential end surface. The first and second circumferential end surfaces contact each other, the first split bearing has a same outer diameter as an outer diameter of the second split bearing, the second split bearing has a thickness at a second circumferentially central position that is greater than a thickness of the first split bearing at a first circumferentially central position, the thickness of the first split bearing is decreased from the first circumferentially central position toward the first circumferential end surface, the thickness of the second split bearing is decreased from the second circumferentially central position toward the second circumferential end surface.
A sliding member (10) comprises: a base material (12); a porous sintered layer (14) disposed on the base material (12); and a resin layer (16) which is impregnated in the porous sintered layer (14) and also disposed on the porous sintered layer (14). The porous sintered layer (14) has a porosity that decreases from a second surface (S2), which is one of two end surfaces in the thickness direction and which opposes a first surface (S1) that is on the base material side, toward the first surface (S1). The porosity decrease rate in the thickness direction (Z) of a first region (E1), which is at least 50% of the thickness of the porous sintered layer (14) from the second surface (S2) toward the first surface (S1), is greater than the porosity decrease rate in the thickness direction (Z) of a second region (E2), which is a region of the porous sintered layer (14) other than the first region (E1).
A blower device comprising: a case; a motor provided inside the case and having a rotatable shaft; two blowers provided inside the case and each comprising an impeller having a number of blades disposed at regular intervals on a circumferential part thereof and fixed to the shaft to be rotatable by the motor; an intake port provided in the case for taking air in between the two blowers; and discharge ports provided in the case respectively corresponding to the two blowers for discharging the air taken through the intake port to the corresponding blowers to the outside. The side of the part of the case in which each of the two blowers is stored opposite to the side where air is taken in is closed so as to prevent an inflow of air.
a of the oil hole 24 has formed a laser-melted portion 25 which is an area in which a change in property in comparison to the original material has been caused by the thermal influence of laser.
A resin material 16 for sliding members according to the present invention is composed of a synthetic resin 18, graphite particles 20 that are dispersed in the synthetic resin 18, and a hard material 24. The synthetic resin 18 contains from 5% by volume to 30% by volume of PTFE 22; the graphite particles 20 have an average particle diameter of 0.5 μm or more but less than 5.0 μm; and the synthetic resin 18 has a volume of 1% by volume or more but less than 15% by volume.
A manufacturing method of an end plate of a pump that can remove a sag includes: punching a workpiece from a plate material, the workpiece being the end plate including a mounting seat including a fastener; forming a pressed trace surface by pressing an outer edge of an outer surface, when a surface, of both front and back surfaces of the punched workpiece, further from a sag formed on a cut end surface is the outer surface, and a surface, of both front and back surfaces of the punched workpiece, nearer to the sag is an inner surface. A section of the pressed trace surface disposed along an outer edge of the mounting seat is a fastening section. A section of the pressed trace surface other than the fastening section is a non-fastening section. A radial width of the fastening section is shorter than that of the non-fastening section.
F04C 2/344 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F01C 19/06 - Radially-movable sealings for working fluids of resilient material
F04C 2/08 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
F04C 18/08 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
The present invention addresses the problem of improving wear resistance and seizure resistance in a copper-alloy sliding material. Provided is a copper-alloy sliding material containing 0.5-12.0 mass% of Sn, 2.0-8.0 mass% of Bi, and 1.0-5.0 vol% of an inorganic compound, with the remainder comprising Cu and inevitable impurities, wherein the inorganic compound comprises a first inorganic compound having an average particle size of 0.5-3.0 μm and a second inorganic compound having an average particle size of 4.0-20.0 μm, and the value obtained by dividing the volume fraction of the first inorganic compound by the volume fraction of the second inorganic compound is 0.1-1.0.
To provide a sliding member including an overlay capable of realizing good fatigue resistance while preventing interlayer peeling. A sliding member including an overlay formed of an alloy plating film of Bi and Sb, and the overlay is bonded to a lining formed of a copper alloy via an intermediate layer containing Ag as a main component.
B22F 5/10 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
B22F 7/08 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
C22C 9/02 - Alloys based on copper with tin as the next major constituent
C25D 3/56 - ElectroplatingBaths therefor from solutions of alloys
The motor cooling member includes: an oil feed port to which oil is fed; a plurality of discharge ports that discharge oil toward a motor; a basis oil passage connected to the oil feed port; and a plurality of derived oil passages each of which is formed by branching from the basis oil passage so as to correspond to each of the plurality of discharge ports and is formed so as to connect the basis oil passage to each of the discharge ports, and which are formed in different shapes from each other.
Provided is a sliding member capable of realizing the wear resistance effect by Si particles.
The sliding member includes an aluminum alloy layer containing 7.0% by mass or more and 13.0% by mass or less of Sn, 6.5% by mass or more and 12.0% by mass or less of Si, 0.5% by mass or more and 3.0% by mass or less of Cu, unavoidable impurities, and a balance Al. Si particles are dispersed in the aluminum alloy layer. A Vickers hardness of a matrix of the aluminum alloy layer is 40 HV or more and 60 HV or less. A load resistance value, which is a product of a volume concentration and average area of the Si particles and the Vickers hardness of the matrix, is 0.00001 N or more and 0.00029 N or less.
A sliding member including an overlay capable of realizing good fatigue resistance while preventing interlayer peeling. The sliding member includes an overlay formed of an alloy plating film of Bi and Sb. The overlay contains Bi, Sb, and unavoidable impurities. The concentration of Sb on the surface of the overlay is 0.92% by mass or more and 13% by mass or less.
A sliding member includes an overlay formed with an alloy plated film of Bi and Sb, the Sb concentration increasing in the overlay with the depth from the surface of the overlay.
F16C 33/12 - Structural compositionUse of special materials or surface treatments, e.g. for rust-proofing
B22F 3/24 - After-treatment of workpieces or articles
B22F 5/10 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
B22F 7/08 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
Provided is a swash-plate for a compressor capable of suppressing the occurrence of seizure. This swash-plate (3) is provided with a flat substrate (31) and a coating layer (32) that covers the surface of the substrate (31), and slides on a shoe (5) by rotating, wherein the coating layer (32) includes: a first coating layer (32a) formed in a first range T1 set on the inner side in the radial direction of the substrate (31), in the sliding range S into the shoe (5); and a second coating layer (32b) formed in a second range T2 set outside the first range T1 in the radial direction in the sliding range S, and the first coating layer (32a) has higher wettability with respect to a lubricating oil supplied between the shoes (5) than the second coating layer (32b).
F04B 27/12 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having plural sets of cylinders or pistons
This sliding bearing (40) is formed by a pair of split bearings (41a, 42a). The thickness (T2) at the circumferentially central position (P2) of one (42a) of the split bearings is greater than the thickness (T1) at the circumferentially central position of the other bearing (41a). By reducing the thickness of the other bearing (41a) the further from the circumferentially central position and towards an end surface (51), the thickness of the end surface (51) is set as the first thickness. By reducing the thickness of the one bearing (42a) the further from the circumferentially central position and towards an end surface (61), the thickness of the end surface (61) is set as the second thickness. The first thickness and the second thickness are made equal.
This slide bearing (2) comprises: a bearing body (20): a radial bearing portion (21F) which is positioned on the inner peripheral surface of the bearing body (20); a thrust bearing portion (22F) which is positioned at the end surface in the axial direction of the bearing body (20); dampers (23F, 24F) which are positioned on the outer peripheral surface of the bearing body (20); a barrier portion (33) positioned on the outer peripheral surface of the bearing body (20); and an oil hole (30) having an inlet (300) which opens onto the barrier portion (33) and/or the outer peripheral surface of the bearing body (20) and an outlet (301) which opens onto the inner peripheral surface of the bearing body (20). The inlet (300), at least part of the barrier portion (33) and the dampers (23F, 24F) are arranged, in this order, from the inside in the axial direction to the outside in the axial direction. An outlet (906) of an upstream-side oil path (905) is connected with the outside in the radial direction of the inlet (300). The axial direction outer edge (H) of the outlet (906) is positioned at the same position as the axial direction outer edge (F) of the barrier portion (33) or further to the inside in the axial direction than the axial direction outer edge (F).
Provided is a technique for reducing adhesion in a slide bearing. This aluminum alloy for a slide bearing contains 0 mass% to 10.0 mass% Sn and 0 mass% to 5.0 mass% Si, contains 0 mass% to 2.0 mass% Cu as a solid solution strengthening component, contains as a precipitation strengthening component at least one component from among 0.05 mass% to 0.35 mass% Cr, 0.05 mass% to 1.5 mass% Mn, and 0.05 mass% to 0.3 mass% Zr, and contains 2.3 mass% to 6.0 mass% Ag, a portion of which is in solid solution and the remainder of which is precipitated Ag, and the remainder of the aluminum alloy comprises unavoidable impurities and Al.
[Problem]To provide a technology capable of reducing the probability of generating a Cu-Sb compound and peeling between layers in an overlay. [Solution]This sliding member is provided with an overlay formed by using a plating film of a Bi-Sb alloy, the sliding member comprising: a lining formed of an Al alloy; a first intermediate layer which has Cu as a main component and is laminated on the lining; and a second intermediate layer joining the first intermediate layer and the overlay.
A sliding member according to one embodiment of the present invention comprises: a base material that has a shape having a surface which supports a counterpart member, and from which a metal sintered layer is not exposed; and a resin coating layer which is formed on the inner circumferential surface, and which has a thickness of more than 20 μm.
A half bearing has a concave portion, a concave portion, and a concave portion penetrating from the outer circumferential surface to the inner circumferential surface, and the washer has a convex portion, a convex portion, and a convex portion on the inner circumferential surface side. The washer is moved to the outer circumferential surface side of the half bearing in a bent state, the convex portion is inserted into the concave portion, the convex portion is aligned with the position of the concave portion, and the convex portion is aligned with the position of the convex portion. Next, when the half bearing returns to its shape before being bent, the convex portion is accommodated in the concave portion, and the convex portion is also accommodated in the concave portion. Even if an axial force acts on the sliding bearing, the protrusion, the protrusion, and the protrusion engages with the concave portion, the concave portion, and the concave portion, so that the washer and the washer are not detached from the half bearing.
A thrust washer according to an embodiment has an annular washer body having a first thrust surface and a second thrust surface that receive a thrust load, and a tapered portion formed on at least one of the first thrust surface and the second thrust surface, and the washer body has a waviness larger than a difference in height of the tapered portion in a direction perpendicular to the thrust surface.
[Problem] A technique is provided which makes it possible to achieve a suitable degree of wear resistance in a resin coating layer. [Solution] This sliding member is provided with a base layer and a resin coating layer formed on the base layer. The resin coating layer comprises a polyamide-imide resin as a binder, barium sulfate particles, molybdenum disulfide particles, and unavoidable impurities, and is configured from multiple coating layers obtained by coating one layer on another; the hard particle content is different in each of the multiple coating layers.
[Problem] To provide a technology which enables a sliding member to exert high welding resistance even with scratches. [Solution] A sliding member according to the present invention is provided with a base layer and a resin coating layer that is formed on the base layer; and this sliding member is configured such that the resin coating layer is composed of a polyamide imide resin that serves as a binder, barium sulfate particles, molybdenum disulfide particles and unavoidable impurities, said molybdenum disulfide particles having an average particle diameter that is from 1.0 to 2.8 times (inclusive) the average particle diameter of the barium sulfate particles.
[Problem] To provide a technology whereby high seizure resistance can be exhibited even when scratches have been formed. [Solution] This sliding member comprises a base layer and a resin covering layer formed on the base layer, the resin covering layer being composed of a polyamide-imide resin serving as a binder, barium sulfate particles having an average particle diameter of at least 0.3 μm and less than 0.7 μm, molybdenum disulfide particles, and unavoidable impurities.
[Problem] To provide a technique that can reduce the size of surface irregularities. [Solution] This sliding member is provided with a base layer and a resin coating layer formed on the base layer. The resin coating layer comprises a polyamide-imide resin as a binder, barium sulfate particles, molybdenum disulfide particles, and unavoidable impurities, and is configured from multiple coating layers obtained by coating one layer on another; the film thickness of the outermost of the multiple coating layers is less than or equal to 4 μm.
[Problem] To provide technology that makes it possible to achieve high seizing resistance even when scratches are formed. [Solution] A sliding member according to the present invention is provided with a base layer and a resin coating layer formed on the base layer. The resin coating layer comprises: a polyamide-imide resin serving as a binder; molybdenum disulfide particles; barium sulfate particles having a total volume that is 0.35-0.8 times the total volume of the molybdenum disulfide particles; and unavoidable impurities.
Provided is a sliding bearing that can improve contact with a holder on a bearing rear surface and improve material yield. This sliding bearing 1 comprises a pair of upper and lower half split members 2, 3 which are formed by bisecting a cylinder in a direction parallel to the axial direction thereof, the sliding bearing having hardened sections 25 on the end faces 2c, 2d of the upper half split member 2 in the cylinder axial direction and hardened sections 35 on the end faces 3c, 3d of the lower half split member 3 in the cylinder axial direction. The hardened sections 25, 35 are laser modified sections K in which the properties of the material have been changed by the thermal influence of a laser.
A half bearing includes: a semi-cylindrical bearing body having an inner circumferential surface that slides against a counterpart shaft; and a first groove formed in the inner circumferential surface so as to extend in a circumferential direction of the inner circumferential surface. In a cross section that is parallel with the circumferential direction and passes through the first groove, of the bearing body, an angle θ satisfies 90°≤θ≤105°, where the angle θ is formed by: a line connecting the inner circumferential surface side end of a mating surface located on a downstream side in a rotational direction of the counterpart shaft with the center point of a circular arc constituting an outer circumferential surface; and a line connecting an end of the first groove in the circumferential direction, on the upstream side in the rotational direction of the counterpart shaft, with the center point.
A washer includes a first washer piece formed in a circular arc shape and formed with a first fitting portion that protrudes from one end in a circular arc direction; and a fourth washer piece formed with a second fitting portion that is recessed from one end in the circular arc direction and fitted with the first fitting portion. The first fitting portion and the second fitting portion are fitted in a state where approach and separation therebetween in the circular arc direction is controlled. One of the first fitting portion and the second fitting portion includes a crimped portion that is formed in a state where a side surface of the one of the fitting portions is pushed into a side surface of the other of the fitting portions, the one of the fitting portions being fixed to the other of the fitting portions by the crimped portion.
F16B 43/00 - Washers or equivalent devicesOther devices for supporting bolt-heads or nuts
B21D 53/20 - Making other particular articles rings, e.g. barrel hoops washers, e.g. for sealing
F16B 39/24 - Locking of screws, bolts, or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
A vane pump including a housing having a peripheral wall portion, a bottom wall portion, and a pump chamber; a rotor disposed in the pump chamber to be rotatable; a vane disposed to be slidable in the radial direction with respect to the rotor and partitioning the pump chamber into working chambers; and a reed valve that opens and closes a discharge hole of the bottom wall portion. A pressure relief groove is disposed in a portion of the bottom wall portion corresponding to the discharge section with a clearance secured between the peripheral wall portion and the pressure relief groove. When the vane overlaps the pressure relief groove, a pair of the working chambers on both sides of the vane in the rotational direction communicates with each other via the pressure relief groove.
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 25/02 - Adaptations for special use of pumps for elastic fluids for producing high vacuum
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
A vane pump includes a housing, a rotor rotatable about a rotation axis, and a vane that rotates together with the rotor and reciprocates in a radial direction with respect to the rotor, the vane dividing a pump chamber into a plurality of working chambers. At least one of opposite end surfaces of the vane in an axial direction is a sliding surface that slidably contacts an inner surface of the housing via an oil film, and an oil reservoir portion is provided in the sliding surface in a recessed manner.
F04C 2/344 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
A slide bearing in the present invention is formed in a cylindrical shape and has an inner peripheral surface sliding along an axis, the slide bearing includes: a first groove in which the extension direction is a direction having a component in a circumferential direction on the inner peripheral surface; and at least two second grooves that are branched from the first groove and in which the extension directions are directions each having a component in an axial direction at least within a predetermined range from the first groove. Within a predetermined range from an end opposite to the first groove of the second groove, the width or the depth gradually decreases toward the end.
A turbocharger includes: a shaft connecting a compressor wheel and a turbine wheel; a thrust collar rotating together with the shaft; a thrust bearing holding the thrust collar for rotation; and a bearing housing holding the thrust bearing, wherein the bearing housing includes: an oil supply passage for supplying oil for lubrication to the thrust bearing; an oil discharge passage from which the oil supplied to the thrust bearing is discharged; a wall portion facing the thrust collar; and a groove portion formed in the wall portion and extending from the thrust collar toward a discharge port of the oil discharge passage.
The present invention provides a sliding member provided with an overlay capable of realizing good fatigue resistance while preventing peeling between layers. The present invention is a sliding member provided with an overlay formed by a Bi and Sb alloy plating film, wherein the overlay comprises Bi, Sb, and unavoidable impurities, and the concentration of Sb in the surface of the overlay is 0.92% by mass to 13% by mass.
Provided is a sliding bearing having an improved circularity and having achieved an increase in contact area with respect to a holder. The sliding bearing 1 comprises a pair of an upper halved member 2 and a lower halved member 3 which are portions of a cylinder halved in parallel to an axial direction. The sliding bearing has an oil hole 24 penetrating therethrough in a direction orthogonal to the axial direction of the cylinder. An inner peripheral portion 24a of the oil hole 24 has formed a laser-melted portion 25 which is an area in which a change in property in comparison to the original material has been caused by the thermal influence of laser.
Provided is a sliding member that can exhibit an anti-wear effect brought about by Si particles. The present invention is a sliding member including 7.0 to 13.0mass% inclusive of Sn, 6.5 to 12.0mass% inclusive of Si, 0.5 to 3.0mass% inclusive of Cu, and unavoidable impurities, wherein the remainder includes an aluminum alloy layer formed from Al. Si particles are dispersed in the aluminum alloy layer. The Vickers hardness of the matrix is 40 to 60HV inclusive. The load resistance value, which is the product of multiplying the Vickers hardness of the matrix and the volume concentration and average surface area of the Si particles, is 0.00001 to 0.00029N inclusive.
F16C 33/12 - Structural compositionUse of special materials or surface treatments, e.g. for rust-proofing
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
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
[Problem] To provide a sliding member equipped with an overlay such that good fatigue resistance can be achieved while preventing peeling between layers. [Solution] A sliding member is provided with an overlay formed of a Bi-Sb alloy film, and is characterized in that the concentration of Sb in the overlay increases with depth from the surface thereof.
[Problem] To provide a sliding member which is provided with an overlay that enables the achievement of good fatigue resistance, while preventing ply separation. [Solution] A sliding member which is provided with an overlay that is formed of an alloy plating film of Bi and Sb, and which is configured such that the overlay is bonded to a lining that is formed from a copper alloy, with an intermediate layer that is mainly composed of Ag being interposed therebetween.
C10M 111/04 - Lubricating compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular organic compound
2 dispersed in the binder resin; wherein a surface roughness of the coating layer after a sliding test is equal to or less than the surface roughness of the coating layer before the sliding test.
F16C 33/20 - Sliding surface consisting mainly of plastics
C10M 111/04 - Lubricating compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular organic compound
C10M 125/22 - Compounds containing sulfur, selenium or tellurium
C10M 147/02 - Monomer containing carbon, hydrogen and halogen only
C10M 161/00 - Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
A vane pump includes a housing, a rotor, a vane and a reed valve. A position at which the sliding direction of the vane with respect to the rotor is inverted from outward to inward is defined as a reference position, and a section of the pump chamber on the discharge hole side with respect to the reference position is defined as a discharge section. A pressure relief groove is disposed in a portion of the bottom wall portion corresponding to the discharge section with a clearance secured between the peripheral wall portion and the pressure relief groove. When the vane overlaps the pressure relief groove, a pair of the working chambers communicate with each other via the pressure relief groove.
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
A half bearing is provided with a first groove and a second groove on the inner circumferential surface side. The first and second grooves extend in the circumferential direction of the inner circumferential surface, and retain lubricating oil. The end of the first groove in the circumferential direction, on the downstream side in the rotational direction of the shaft (the end on the crush relief side), is located away from a crush relief so as not to reach the crush relief. Also, the end of the second groove in the circumferential direction, on the downstream side in the rotational direction of the shaft (the end on the crush relief 14 side), is located away from the crush relief so as not to reach the crush relief.
A half bearing includes circumferentially extending first and second grooves on the inner circumferential surface. The circumferential end of the first groove, on the rotational upstream side of the shaft, has an inclination angle θ1 of 135° formed by: a first imaginary line connecting the inner circumferential surface end of a mating surface and the origin of an outer circumferential surface; and a second imaginary line connecting the end of the first groove and the origin of the outer circumferential surface. The circumferential end of the second groove, on the rotational upstream side of the shaft, has an inclination angle θ2 of 135° formed by: a first imaginary line connecting the inner circumferential surface end of the mating surface and the origin of the inner circumferential surface; and a third imaginary line connecting the end of the second groove and the origin of the outer circumferential surface.
There is provided a method of manufacturing a washer capable of suppressing reduction in a sliding area, which includes: a preparing step of preparing a panel-shaped member N; a cutting step of cutting the panel-shaped member N with a laser L2 to thereby obtain a longitudinal member N1; and a forming step of obtaining an arc-shaped washer by using the longitudinal member N1. The panel-shaped member N has an equal width to a longitudinal width of the longitudinal member N1. The cutting step is a step of cutting the panel-shaped member N from one end to the other end in a width direction to thereby obtain the longitudinal member N1 and the forming step is a step of deforming the longitudinal member N1 into an arc shape so that cut faces of the longitudinal member N1 form an outer peripheral face and an inner peripheral face.
A control device controls an internal combustion engine including: an elastic wave sensor arranged and configured to output a signal responsive to the strength of an acoustic emission wave produced at a sliding portion; and a variable oil pump. The control device is configured to execute an oil pressure control such that the oil pressure approaches a target oil pressure according to an engine operating condition. This oil pressure control includes a first pressure-increase processing executed where an AE correlation value correlated with the strength or occurrence frequency of the acoustic emission wave detected by the elastic wave sensor is greater than a first threshold value. The first pressure-increase processing increases the target oil pressure associated with a first engine operating condition present when the AE correlation value becomes greater than the first threshold value, as compared to when the AE correlation value is not greater than that.
Provided are a sliding member and a sliding bearing which can improve the fatigue resistance. A sliding member having a base layer and a coating layer laminated on the base layer, in which the coating layer contains Bi or Sn as a first metal element, a second metal element which is harder than the first metal element and forms an intermetallic compound with the first metal element, C, and unavoidable impurities.
There is provided a shoe for a compressor with improved seizure resistance. The shoe for the compressor includes: a first sliding face that slides on a piston; a second sliding face that slides on a swash plate; and a recess formed in the second sliding face. In a section along a height direction and scaled up 1000 times in the height direction and 10 times in a radial direction, a connecting portion between the second sliding face and the recess 53 is formed in a rounded shape with a radius R2 larger than 5 mm.
F04B 27/08 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
A thrust washer of one embodiment includes: a washer body that is annular and that has a first thrust surface and a second thrust surface which receive a thrust load; and a tapered section formed in the first thrust surface and/or the second thrust surface. In a direction perpendicular to the thrust surfaces, the washer body has a wave shape the high-point to low-point height difference of which is larger than that of the tapered sections.
A halved bearing 11 has a recess 112a, a recess 112b, and a recess 112c that penetrate from an outer circumferential surface to an inner circumferential surface, and a washer 12 has a protrusion 122a, a protrusion 122b, and a protrusion 122c on an inner circumferential surface side. While the halved bearing 11 is in a bent condition, the washer 12 is shifted to the outer circumferential surface side thereof, the protrusion 122b is inserted into the recess 112b, the protrusion 122a is matched to the location of the recess 112a, and the protrusion 122c is matched to the location of the recess 112c. Then, when the halved bearing 11 that was bent is returned to a pre-bending condition, the protrusion 122a settles into the recess 112a, and the protrusion 122b settles into the recess 112b. Even if an axial direction force acts on a slide bearing 10, the protrusion 122a, the protrusion 122b, and the protrusion 122c will catch on the recess 112a, the recess 112b, and the recess 112c, and thus the washer 12 and a washer 13 will not detach from the halved bearing 11.
There is provided a method of manufacturing washers with improved material yield. The method includes: a preparing step of preparing a material having a panel shape; a first cutting-out step of cutting out a first thrust washer having a substantially arc shape from the material; and a second cutting-out step of cutting out a second thrust washer from a portion of the material in contact with a portion from which the first thrust washer is cut out.
The present invention addresses the problem of suppressing irregular abrasion on a resin coating layer. A swash plate according to one embodiment has: a base material having an annular shape with a surface facing a mating material; a plurality of grooves provided on the surface and extending, over the entire circumference of the annular shape, in a direction crossing the direction of sliding contact with the mating material; and a resin coating layer formed on said surface and forming a sliding contact surface with the mating material.
F04B 27/12 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having plural sets of cylinders or pistons
F16C 17/04 - Sliding-contact bearings for exclusively rotary movement for axial load only
F16C 33/20 - Sliding surface consisting mainly of plastics
80.
Shoe and swash plate compressor including the shoe
There is provided a shoe capable of suppressing deformation of a member on which the shoe slides. The shoe includes: a first sliding surface which slides on a concave surface of a piston (first movable member); and a second sliding surface which bulges toward a side opposite to the first sliding surface and slides on a flat surface of a swash plate (second movable member). The second sliding surface includes: a curved outer peripheral portion which is provided along an outer periphery of the second sliding surface; and a central portion which is provided at a center of the second sliding surface so as to be continuous with the curved outer peripheral portion and has a radius of curvature greater than a radius of curvature of the curved outer peripheral portion.
F04B 27/08 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
F04B 27/10 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
A vane pump including: a housing having a pump chamber; a rotor having a cylindrical peripheral wall portion accommodated in the pump chamber and having a pair of vane holding grooves facing each other in a diameter direction, and an oil chamber defined inside the peripheral wall portion to store lubricating oil; and a vane that is held in the pair of vane holding grooves and moves across the oil chamber in the diameter direction, is provided. At least one of an inner surface of the housing and an end face of the peripheral wall portion, which together with the inner surface defines a sliding interface, has an oil groove for the lubricating oil.
F04C 18/00 - Rotary-piston pumps specially adapted for elastic fluids
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 25/02 - Adaptations for special use of pumps for elastic fluids for producing high vacuum
[Problem] To provide a sliding member and a sliding bearing which are capable of improving fatigue resistance. [Solution] Provided is a sliding member in which a coating layer is laminated on a base layer, wherein the coating layer comprises: Bi or Sn as a first metal element; a second metal element which is harder than said first metal element and forms an intermetallic compound with said first metal element; C; and inevitable impurities.
[Problem] To provide a technology with which good wear resistance can be achieved using a simple structure. [Solution] A sliding member and a slide bearing in which a coating layer with a surface for sliding with respect to a mating material is formed on a base layer, wherein: the base layer is formed from a hard material that is harder than the coating layer; and in an evaluation area of the coating layer in which the distance from the interface with the base layer is 1 μm to 2 μm, the average concentration of diffused components of the hard material that have diffused from the base layer is at least 4 wt%.
A resin material for sliding members according to one embodiment of the present invention is composed of a polyimide resin in an amount of 80% by volume or more, graphite and a hard substance in an amount of from 9.5% by volume to 20% by volume (inclusive) in total, and a silane coupling agent in an amount of 0.1% by weight or more relative to the polyimide resin, with the balance being made up of unavoidable impurities.
There is provided a technique which can realize both of conformability and fatigue resistance.
A sliding member and a slide bearing include a base layer and a coating layer provided on the base layer and having a sliding surface on which a counter material slides, and are characterized in that the coating layer is formed of a soft material which is softer than that for the base layer; and that, in the sliding surface, crystal grains of the soft material having an average grain diameter of 0.1 μm or more and 1 μm or less are aggregated into lumps, thereby forming aggregates having an average diameter of 3 μm or more and 30 μm or less.
F16C 33/12 - Structural compositionUse of special materials or surface treatments, e.g. for rust-proofing
C22C 9/02 - Alloys based on copper with tin as the next major constituent
C23C 24/00 - Coating starting from inorganic powder
C25D 3/54 - ElectroplatingBaths therefor from solutions of metals not provided for in groups
C23F 17/00 - Multi-step processes for surface treatment of metallic material involving at least one process provided for in class and at least one process covered by subclass or or class
A compressor swash plate includes a base member having a flat plate shape, and a coating layer formed on a surface of the base member and having projections formed in a linear shape, in which the following inequalities are satisfied when a plane part formed on a prism is pressed against the coating layer with a pressure of 30 MPa: 0.01≤B≤0.06 and 10≤S≤40, where B indicates widths (mm) of surfaces of the projections in contact with the plane part, and S indicates a percentage (%) of a total sum of an area Si of the contact surfaces (a gross area of the surfaces of the projections in contact with the plane part) relative to a reference area (an area of a part of the coating layer against which the plane part is pressed).
F16C 33/00 - Parts of bearingsSpecial methods for making bearings or parts thereof
F16C 17/00 - Sliding-contact bearings for exclusively rotary movement
F04B 27/00 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
F04B 27/12 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having plural sets of cylinders or pistons
F16C 17/10 - Sliding-contact bearings for exclusively rotary movement for both radial and axial load
F16C 33/12 - Structural compositionUse of special materials or surface treatments, e.g. for rust-proofing
F04B 27/10 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
89.
Molding device and method for manufacturing molded product
Provided is a molding device for manufacturing a molded product having an arc-shaped bent inner space, wherein the molding device includes: a pair of molds which is joinable to each other and separable from each other, and is capable of forming a cavity C which has a shape corresponding to an outer shape of the molded product in a joined state during molding; a core which has a shape corresponding to an inner shape of the molded product, and is disposed in the inside of the cavity C which the pair of molds forms during molding; and a rotation member which is joined to a terminal end of the core, and is rotatable together with the core after molding. Compared to a conventional molding device, the molding device of the present invention becomes a molding device capable of suppressing the occurrence of a defect on a molded product having an arc-shaped bent inner space at the time of taking out the molded product.
This slide bearing, which is formed into a cylindrical shape and which has an inner peripheral surface that slides over a shaft, has, in the inner peripheral surface, first grooves (20A, 20B) of which the extension direction has a circumferential direction component, and at least two second grooves (21A, 21B, 21C, 21D) which branch from the first grooves and of which the extension direction has an axial direction component at least within a range predetermined from the first grooves. A predetermined range of the second grooves, which begins at the distal ends on the sides opposite the first-groove sides, gradually decreases in width or depth toward the distal ends.
Provided are: a washer capable of being manufactured with an increased material yield; and a washer manufacturing method. This washer is provided with: a first washer piece 11 formed in a circular arc shape and having formed thereon a first fitting section 30 which protrudes from one end of the first washer piece 11 in the circular arc direction; and a fourth washer piece 14 having formed therein a second fitting section 40 recessed from one end of the fourth washer piece 14 in a circular arc direction and fitted to the first fitting section 30. The first fitting section 30 and the second fitting section 40 are fitted to each other such that the movement of the first and second fitting sections 30, 40 toward and away from each other in the circular arc direction is restricted. One of the first fitting section 30 and the second fitting section 40 is provided with a staked section 36 formed such that the side surface of the one of the first and second fitting sections is pressed into the side surface of the other fitting section, and the one of the fitting sections is affixed to the other fitting section by the staked section 36.
Provided is a turbocharger in which it is possible to minimize leaking of lubricating oil toward a compressor impeller. A turbocharger (1) is provided with: a rotating shaft (50) linking a compressor impeller (51) and a turbine impeller (52); a retainer (60) disposed between the compressor impeller (51) and the turbine impeller (52); a deflector (61) having a deflector main body (610) that is arranged in parallel with the turbine-impeller (52) side of the retainer (60) and that has a through-hole (610a) through which the rotating shaft (50) is inserted, and a tongue part (611) that extends from the lower edge of the deflector main body (610); a seal chamber (A) sectioned between the retainer (60) and the deflector (61); and a discharge port (B) that is sectioned between the tongue part (611) and the retainer (60) and that discharges lubricating oil from the seal chamber (A). The deflector main body (610), which is disposed between the through-hole (610a) and the discharge port (B), has a leak hole (610b) through which the seal chamber (A) and a space (901b) on the turbine-impeller (52) side of the seal chamber (A) communicate.
A method of manufacturing a washer capable of improving a material yield is provided. The method includes: a preparation step of preparing a longitudinal member which includes an upper corrugated portion and a lower corrugated portion including crest portions formed on at least one of an upper surface and a lower surface and valley portions continuous to the crest portions in the right-left direction; and a deformation step of deforming the longitudinal member such that the upper surface and the lower surface are arcuate as viewed in the direction from the front to the rear.
A method of manufacturing a washer capable of improving a material yield is provided. The method includes: a preparation step of preparing a longitudinal member which includes an upper crest portion and a lower crest portion formed on at least one of an upper surface and a lower surface of the longitudinal member, and an upper valley portion and a lower valley portion continuous to the upper crest portion and the rower crest portion in the right-left direction, respectively, the upper valley portion and the lower valley portion provided with projections, respectively; and a deformation step of deforming the longitudinal member such that the upper surface and the lower surface are arcuate as viewed in the direction from the front to the rear.
A fuel cell vehicle comprises a fuel cell module, a vehicle body frame, a plurality of mounting portions and a tank. A front portion of the vehicle body frame that a front side mounting portion is attached to is configured to be movable upward in a vehicle height direction when a load is applied in the vehicle longitudinal direction. A rear side mounting portion configured to mount a rear side of the fuel cell module in the vehicle longitudinal direction to the vehicle body frame is configured to be more easily breakable, compared with the front side mounting portion, when the load is applied in the vehicle longitudinal direction.
A halved bearing (10) according to an embodiment comprises: a semi-cylindrical bearing body (19) having an inner circumferential surface (12) that slides against a counterpart shaft; and a first groove (111) formed in the inner circumferential surface (12) along a circumferential direction of the inner circumferential surface (12). In a cross section of the bearing body (19) passing through the first groove (111) and being parallel to the circumferential direction, an angle θ formed between a line connecting an end, on the inner circumferential surface side, of a mating surface on the downstream side in the rotating direction of the counterpart shaft and a center of an arc forming an outer circumferential surface (11) and a line connecting the center and an end, in the circumferential direction, of the first groove (111) on the upstream side in the rotating direction of the counterpart shaft satisfies 90°≤θ≤105°.
A halved bearing (10) according to an embodiment comprises: a semi-cylindrical bearing body (19) having an inner circumferential surface (12) that slides against a shaft; and a first groove (111) formed in the inner circumferential surface (12) along a circumferential direction of the inner circumferential surface (12). In a cross section of the bearing body (19) passing through the first groove (111) and being parallel to the circumferential direction, an angle θ formed between a line connecting an end, on the inner circumferential surface (12) side, of a mating surface on the downstream side in the rotating direction of the shaft and a center of an arc forming an outer circumferential surface (11) and a line connecting the center and an end, in the circumferential direction, of the first groove (111) on the upstream side in the rotating direction of the shaft satisfies 30°≤θ≤60°.
Provide is a washer manufacturing method that inhibits reduction of a sliding area. This method comprises: a preparing step for preparing a plate-like member (N); a cutting step for cutting the plate-like member (N) by means of laser (L2) to obtain longitudinal members (N1); and a forming step for obtaining a circular arc-shaped washer by using each longitudinal member (N1). The width of the plate-like member (N) is equal to the width, in the longitudinal direction, of the longitudinal member (N1). The cutting step is for cutting the plate-like member (N) from one end to the other end in the width direction to obtain the longitudinal member (N1). The forming step is for deforming the longitudinal member (N1) into a circular arc shape such that the cut surfaces of the longitudinal member (N1) form an outer circumferential surface and an inner circumferential surface.
A washer (31) has: a washer body (319) having a thrust surface (311), back surface (312), a through-hole formed from the thrust surface (311) to the back surface (312), and an inner peripheral surface (314) on the hole side; and grooves (3141) that are formed in the inner peripheral surface (314) and that are connected with at least the thrust surface (311).
This resin composition has: a binder resin formed using a thermosetting resin; and additives dispersed in the binder resin. The additives include polytetrafluoroethylene (PTFE) and at least either graphite or MoS2. The average particle diameter of each additive is less than 10 µm. The average particle diameter for the PTFE is greater than the average particle diameter for the graphite and MoS2.
