The invention relates to a torsion bar spring assembly (1) for a vehicle, in particular a commercial vehicle, comprising a frame (4), the torsion bar spring assembly comprising a torsion bar (2) which is mounted on the frame (4) in at least one clamping sleeve (3), wherein the torsion bar spring assembly (1) has a variable torsion spring stiffness (cφ). The torsion bar (2) and at least one further component (5, 8) of the torsion bar spring assembly (1) are mounted so as to be axially movable relative to one another in the direction of a longitudinal axis (LA) of the torsion bar spring assembly (1) in both the positive and negative directions, and can be set in different positions, wherein the variable torsion spring stiffness (cφ) depends on the set positions of the torsion bar (2) and of the at least one further component (5, 8). The invention also relates to a method for controlling the torsion bar spring assembly (1) and to a method for controlling a variant of the torsion bar spring assembly (1).
A suspension arrangement for a vehicle, in particular a utility vehicle having a base and a structure, is disclosed. This arrangement includes at least one first spring and at least one second spring, the at least one first spring and the at least one second spring having spring attachments which are connected to attachment apparatuses of the structure on one side and of the base on the other. The at least one second spring is fastened to the base by way of at least one adjustment device. An adjustable air spring suspension arrangement and methods for controlling the suspension arrangements are disclosed.
B60G 11/00 - Resilient suspensions characterised by arrangement, location, or kind of springs
B60G 11/27 - Resilient suspensions characterised by arrangement, location, or kind of springs having fluid springs only, e.g. hydropneumatic springs wherein the fluid is a gas
B60G 11/30 - Resilient suspensions characterised by arrangement, location, or kind of springs having fluid springs only, e.g. hydropneumatic springs having pressure fluid accumulator therefor, e.g. accumulator arranged in vehicle frame
B60G 15/06 - Resilient suspensions characterised by arrangement, location, or type of combined spring and vibration- damper, e.g. telescopic type having mechanical spring and fluid damper
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
A torsional vibration damper has a hub part, also referred to as primary mass, which can be fastened on a drive shaft of an engine, and an inertia ring, also referred to as secondary mass, which surrounds the hub part in the radially outer region. A damping device is provided between the hub part and the inertia ring. The torsional vibration damper includes an additional torsion spring, wherein the additional torsion spring is axially aligned.
F16F 15/14 - Suppression of vibrations in rotating systems by making use of members moving with the system using freely-swinging masses rotating with the system
F16F 15/167 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring
4.
Crankshaft Arrangement With Torsional Vibration Damper
A crankshaft arrangement for a combustion engine includes a crankshaft and a torsional vibration damper having a primary mass and an inertia ring. The primary mass is fixedly connected to the crankshaft, and the inertia ring and the primary mass are coupled via a viscous fluid. The torsional vibration damper is attached to an output end of the crankshaft. The primary mass is coupled to a secondary coupling via an elastic coupling device. The torsional vibration damper is coupled to the secondary coupling via a feedback device. The secondary coupling is formed as a dual-mass flywheel with a primary flywheel, a secondary flywheel and the elastic coupling device. A method for damping torsional vibrations of a crankshaft of a crankshaft arrangement is provided.
F16F 15/14 - Suppression of vibrations in rotating systems by making use of members moving with the system using freely-swinging masses rotating with the system
A spring assembly (1) for a vehicle, more particularly utility vehicle (1), comprises at least a first spring (2) and at least a second spring (3) that are arranged connected in parallel. The spring assembly (1) is a non-linear spring assembly (1) with a progressive load deflection curve (12). A strut comprising a spring assembly (1) of this type is provided.
B60G 11/14 - Resilient suspensions characterised by arrangement, location, or kind of springs having helical, spiral, or coil springs only
B60G 11/15 - Coil springs resisting deflection by winding up
B60G 11/16 - Resilient suspensions characterised by arrangement, location, or kind of springs having helical, spiral, or coil springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
B60G 13/16 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dynamic absorbers as main damping means, i.e. spring-mass system vibrating out of phase
B60G 3/01 - Resilient suspensions for a single wheel the wheel being mounted for sliding movement, e.g. in or on a vertical guide
A torsional vibration damper has a hub part (primary mass) which can be fastened on a drive shaft of an engine and a flywheel ring (secondary mass) surrounding the hub part in the radially outer region. A gap filled with a fluid and one or more sealing devices are provided between the hub part and the flywheel ring, by which the escape of the fluid is to be prevented. The sealing device or the sealing devices have in each case a first ring connected to the hub part and in each case a second ring connected to the flywheel ring as well as in each case a sealing element made of a plastic material, which is arranged in each case on the one hand in a sealing manner between the first ring and the hub part and on the other hand with the second ring and the flywheel ring. The sealing element is arranged in a clamped manner between the interconnected components, i.e. the first or second ring and the respectively associated hub part or flywheel ring.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
A torsional vibration damper has a hub part (primary mass) which can be fastened on a drive shaft of an engine and a flywheel ring (secondary mass) which surrounds the hub part in the radially outer region, wherein a gap filled with a fluid and one or more sealing devices are provided between the hub part and the flywheel ring, by which escape of fluid is to be prevented. The sealing devices each have a first ring, which is tightly connected to the hub part, as well as a second ring, which is tightly connected to the flywheel ring, as well as a sealing element made of a plastic material. The respective sealing element is connected in a material-locking manner to fastening sections on a respective outer axial side of the first and second ring. The sealing element has at least one elastically deformable axial projection in the region of each of the fastening sections.
F16F 15/16 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid
F16F 15/167 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring
A torsional vibration damper or torsional vibration absorber has a rotating system with: a primary mass, which is arranged on a rotatable shaft, for example on a crankshaft of an engine, in particular of an internal combustion engine, and preferably can be fastened for conjoint rotation; a secondary mass, which is movable relative to the primary mass; and an assembly for vibration damping and/or vibration absorption of the relative movement between the primary mass and the secondary mass. The assembly for vibration damping and/or vibration absorption of the relative movement between the primary mass and the secondary mass has at least one accumulator inside the rotating system of the torsional vibration damper or torsional vibration absorber.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
F16F 15/16 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid
9.
Viscous Torsional Vibration Damper or Viscous Torsional Vibration Absorber
A viscous torsional vibration damper or absorber includes a hub part which can be fastened to a crankshaft of an engine, in particular of an internal combustion engine, and an inertia ring which is mounted such that it can be rotated relative to the hub part. A shear gap, which is filled with a silicone oil, is formed between the hub part and the inertia ring, in which shear gap one or more sliding bearing components are arranged for supporting the inertia ring in a slidingly guided manner, wherein the sliding bearing component(s) are composed at least in some regions of a polyphthalamide-containing plastic, with a fraction of 50 wt. % of PP A.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
F16C 17/02 - Sliding-contact bearings for exclusively rotary movement for radial load only
The invention relates to a torsional vibration isolated coupling element (1) with an axis of rotation (1a) comprises an outer ring (2) as the input side of the coupling element (1), an inner ring (3) as the output side of the coupling element (1) and at least one energy storage unit (4) with at least one energy storage element. The torsional vibration isolated coupling element (1) has a non-linear torsional stiffness.
F16D 3/12 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted for accumulation of energy to absorb shocks or vibration
F16F 15/129 - Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon characterised by friction-damping means
A torsional vibration control coupling (1) having a rotation axis (1a) and comprising a first coupling part (2) as the input side of the coupling (1), a second coupling part (3) as the output side of the coupling (1) and a damping unit (4) is characterized in that the damping unit (4) comprises at least one spring arrangement (10, 10') that is designed as a nonlinear spring arrangement (10, 10') having a degressive load deflection curve.
F16D 3/12 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted for accumulation of energy to absorb shocks or vibration
F16F 15/12 - Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
A torsional vibration damper (1) having a hub part (2) (primary mass) that is able to be fastened to a driveshaft of a motor, and an inertia ring (3) (secondary mass) that surrounds the hub part (2) in the radially outer region, wherein a fluid-filled gap (4) and sealing devices (5), by means of which the escape of the fluid is intended to be avoided, are provided between the hub part (2) and inertia ring (3), wherein the sealing devices (5) each have a first ring (6), tightly connected to the hub part (2), and each have a second ring (7), tightly connected to the inertia ring (3), and each have a sealing element (12) made of an elastomer, which is connected in each case sealingly to the first ring (6) on one side and in each case to the second ring (7) on the other side, is configured such that the respective sealing element (12) has been vulcanized onto a respective external axial side of the first and second ring (6, 7) by fastening portions.
F16F 15/16 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid
F16F 15/167 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring
F16F 15/14 - Suppression of vibrations in rotating systems by making use of members moving with the system using freely-swinging masses rotating with the system
13.
Method for Determining a Life Condition of a Vibration Damper or Absorber, and Arrangement for Carrying Out Such a Method
A method determines a service life condition of a torsional vibration damper or absorber having a primary mass and a secondary mass, and a working chamber arranged between the primary mass and the secondary mass that is filled with a viscous damping medium. The vibration damper is arranged on a crankshaft of an engine in order to dampen or eliminate torsional vibrations of this crankshaft. The method includes: operating the engine; determining at least one operating parameter of the engine; simulating a temperature distribution of the viscous damping medium in the working chamber; and determining a lifetime condition of the vibration damper based on the operating parameter of the engine and the result of simulating the temperature distribution of the viscous damping medium.
F16F 15/16 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
14.
Spring system having a wide-band insulating effect
A spring system of a vehicle, in particular a utility vehicle, includes a first spring/damper unit with a first stiffness and a first damping; a second spring/damper unit with a second stiffness and a second damping; and an additional mass as a tuned-mass absorber. The tuned-mass absorber is coupled to at least one negative stiffness. A vehicle having such a spring system and a method for adapting the stiffness of a spring system are provided.
B60G 13/18 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dynamic absorbers as main damping means, i.e. spring-mass system vibrating out of phase combined with energy-absorbing means
B60G 17/027 - Mechanical springs regulated by fluid means
15.
CRANKSHAFT ARRANGEMENT COMPRISING A TORSIONAL VIBRATION DAMPER
The invention relates to a crankshaft arrangement for an internal combustion engine, comprising: a.) a crankshaft; b.) a torsional vibration damper having a primary mass and a flywheel; c.) the primary mass being fixedly connected to the crankshaft, and the flywheel and the primary mass being coupled via a viscous fluid; d.) the torsional vibration damper being attached to an output end of the crankshaft; e.) the primary mass being coupled to a secondary coupling via an elastic coupling device. The torsional vibration damper is coupled to the secondary coupling via a feedback device. The secondary coupling is designed as a dual-mass flywheel with a primary flywheel, a secondary flywheel and the elastic coupling device. The invention also relates to a method for damping torsional vibrations of a crankshaft of a crankshaft arrangement.
F16F 15/167 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring
F16F 15/133 - Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses using springs as elastic members, e.g. metallic springs
The invention relates to a torsional vibration damper (1) having a hub part (2), also referred to as the primary mass, which can be secured to a drive shaft of a motor, and having a damper ring (3), also referred to as the secondary mass, which surrounds the hub part (2) in the radially outer region, wherein a damping device (5) is provided between the hub part (2) and the damper ring (3), and the torsional vibration damper (1) has an additional torsion spring (7). The torsional vibration damper is characterised in that the additional torsion spring (7) is oriented axially.
F16F 15/14 - Suppression of vibrations in rotating systems by making use of members moving with the system using freely-swinging masses rotating with the system
F16F 15/167 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring
17.
SUSPENSION ASSEMBLY AND METHOD FOR CONTROLLING A SUSPENSION ASSEMBLY
The invention relates to a suspension assembly (1, 1') for a vehicle, more particularly a utility vehicle, having a base (2) and a superstructure (3), wherein: the suspension assembly (1) comprises at least one spring (4), at least one damper (5) and at least one inerter (6, 6'); the at least one first spring (4), the at least one damper (5) and the at least one inerter (6, 6') are connected, at one end, to the superstructure (3) and, at the other end, to the base (2); and the at least one inerter (6) has an adjustment device (SE). The invention also relates to a method for controlling the spring assembly (1).
B60G 13/14 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers accumulating utilisable energy, e.g. compressing air
B60G 15/04 - Resilient suspensions characterised by arrangement, location, or type of combined spring and vibration- damper, e.g. telescopic type having mechanical spring and mechanical damper
F16F 7/10 - Vibration-dampersShock-absorbers using inertia effect
18.
SUSPENSION ARRANGEMENT AND METHOD FOR CONTROLLING SUSPENSION ARRANGEMENTS
The invention relates to a suspension arrangement (1) for a vehicle, in particular a utility vehicle, having a base (2) and a structure (3), the arrangement comprising at least one first spring (4) and at least one second spring (5), the at least one first spring (4) and the at least one second spring (5) having spring attachments (4c, 5c) which are connected to attachment apparatuses (10, 11) of the structure (3) on one side and of the base (2) on the other. The at least one second spring (5) is fastened to the base (2) by means of at least one adjustment device (6). A suspension arrangement (1') has an adjustable air spring (14). The invention also relates to methods for controlling the suspension arrangements (1, 1').
B60G 15/06 - Resilient suspensions characterised by arrangement, location, or type of combined spring and vibration- damper, e.g. telescopic type having mechanical spring and fluid damper
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
B60G 17/017 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their use when the vehicle is stationary, e.g. during loading, engine start-up or switch-off
A crankshaft arrangement for an internal combustion engine includes a crankshaft, a torsional vibration damper having a primary mass and a flywheel, wherein the primary mass is connected fixedly to the crankshaft, and the flywheel and the primary mass are coupled via a viscous fluid. The torsional vibration damper is attached to an output end of the crankshaft. The primary mass is coupled to a secondary coupling via an elastomer coupling ring. The torsional vibration damper is coupled to the secondary coupling via a feedback device. The feedback device has a negative stiffness.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
20.
VISCOUS TORSIONAL VIBRATION DAMPER OR VISCOUS TORSIONAL VIBRATION ABSORBER
The invention relates to a viscous torsional vibration damper or absorber (1), having a hub part which can be fastened to a crankshaft (M) of an engine, in particular of an internal combustion engine, and an inertia ring (2) which is mounted such that it can be rotated relative to the hub part, wherein a shear gap (3), which is filled with a silicone oil, is formed between the hub part and the inertia ring (2), in which shear gap (3) one or more sliding bearing components are arranged for supporting the inertia ring (2) in a slidingly guided manner, wherein the sliding bearing component(s) are composed at least in some regions of a polyphthalamide-containing plastic, with a fraction of 50 wt.% of PPA.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
The invention relates to a torsional vibration damper (1) or torsional vibration absorber having a rotating system with: a primary mass, which is arranged on a rotatable shaft, for example on a crankshaft (2) of an engine, in particular of an internal combustion engine, and preferably can be fastened for conjoint rotation; a secondary mass, which is movable relative to the primary mass; and an assembly for vibration damping and/or vibration absorption of the relative movement between the primary mass and the secondary mass. The assembly for vibration damping and/or vibration absorption of the relative movement between the primary mass and the secondary mass has at least one accumulator (15, 15'; 22, 22') inside the rotating system of the torsional vibration damper (1) or torsional vibration absorber. The invention also relates to a method for damping torsional vibrations of a crankshaft (2) of an internal combustion engine having a torsional vibration damper (1) or torsional vibration absorber.
F16F 5/00 - Liquid springs in which the liquid works as a spring by compression, e.g. combined with throttling actionCombinations of devices including liquid springs
F16F 9/12 - Devices with one or more rotary vanes turning in the fluid, any throttling effect being immaterial
F16F 15/16 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid
F16F 9/04 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only in a chamber with a flexible wall
The invention relates to a torsional vibration damper (1) having a hub part (2) (primary mass), which can be fastened on a drive shaft of a motor, and a flywheel ring (3) (secondary mass) which encloses the hub part (2) in the radially outer region, wherein a gap (4) filled with fluid and sealing devices (5) are provided between the hub part (2) and the flywheel ring (3), by means of which an escape of the fluid is to be prevented, wherein the sealing devices (5) comprise in each case a first ring (6), which is tightly connected to the hub part (2), a second ring (7), which is tightly connected to the flywheel ring (3), and in each case a sealing element (12) made of an elastomer, which sealing element is, on the one hand, connected in a sealing manner to the first ring (6) and, on the other hand, to the second ring (7). According to the invention, the torsional vibration damper is designed in such a manner that the respective sealing element (12) is vulcanized with fastening sections to a respective external axial side of the first and the second ring (6, 7).
F16F 15/167 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring
23.
METHOD FOR DETERMINING A LIFE CONDITION OF A VIBRATION DAMPER OR ABSORBER, AND ARRANGEMENT FOR CARRYING OUT SUCH A METHOD
A method according to the invention for determining a service life condition of a vibration damper (1), in particular a torsional vibration damper or absorber, having a primary mass and a secondary mass, and having a working chamber which is arranged between the primary mass and the secondary mass and is filled with a viscous damping medium, wherein the vibration damper (1) is arranged on a crankshaft (7) of an engine (8), in particular of an internal combustion engine, in order to dampen or eliminate torsional vibrations of this crankshaft (7), the crankshaft (7) forming part of the engine (8), is designed with the following steps when operating this engine (8). S1) operating the engine (8); S2) determining at least one operating parameter of the engine (8); S3) simulating a temperature distribution of the viscous damping medium in the working chamber; and S4) determining a lifetime condition of the vibration damper (1) based on the operating parameter of the engine (8) and the result of simulating the temperature distribution of the viscous damping medium. And an arrangement for carrying out said method.
F16F 15/16 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
24.
Viscous torsional-vibration damper and method for producing a viscous torsional-vibration damper
A viscous torsional-vibration damper has a damper housing with an axis of rotation, an annular working chamber filled with a damping medium, an inertia ring arranged inside the working chamber, and a cover for media-tight closure of the working chamber. The cover is connected to the damper housing peripherally on one side by a sequence of a butt seam and an overlap seam.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
F16F 15/00 - Suppression of vibrations in systemsMeans or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
25.
SPRING SYSTEM HAVING A WIDE-BAND INSULATING EFFECT
The invention relates to a spring system (1) of a vehicle, more particularly a utility vehicle, comprising a first spring/damper unit having a first stiffness K1 and a first damping D1; a second spring/damper unit having a second stiffness K2 and a second damping D2; and an additional mass as a tuned mass absorber (4). The tuned mass absorber (4) is coupled to at least one negative stiffness (Kn). The invention also relates to a vehicle having spring systems (1) of this type and to a method for adjusting the stiffness of a spring system (1).
F16F 7/116 - Vibration-dampersShock-absorbers using inertia effect the inertia member being resiliently mounted on metal springs
B60G 13/16 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dynamic absorbers as main damping means, i.e. spring-mass system vibrating out of phase
The invention relates to a viscous torsional vibration damper, comprising a housing with an annular working chamber filled with damper medium, and an inertia ring which is rotatably mounted in the working chamber, characterized in that a plurality of fan plates are attached in a circumferentially distributed manner on a circumferential annular track at the housing.
F16F 15/023 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using fluid means
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
27.
CRANKSHAFT ARRANGEMENT COMPRISING A TORSIONAL VIBRATION DAMPER
The invention relates to a crankshaft arrangement for an internal combustion engine, comprising: a.) a crankshaft; b.) a torsional vibration damper having a primary mass and a flywheel; c.) the primary mass being connected fixedly to the crankshaft, and the flywheel and the primary mass being coupled via a viscous fluid; d.) the torsional vibration damper being attached to an output end of the crankshaft; e.) the primary mass being coupled to a secondary coupling via an elastomer coupling ring. The torsional vibration damper is coupled to the secondary coupling via a feedback device. The feedback device has a negative stiffness. The invention also relates to a method for damping torsional vibrations in a crankshaft of a crankshaft arrangement.
F16F 15/167 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring
28.
Torsional vibration damper or torsional tuned mass damper
A torsional vibration damper or torsional tuned mass damper having a rotating system having a primary mass, which is arranged, or preferably fixable for conjoint rotation on a rotatable shaft, such as a crankshaft of a motor, for example, in particular an internal combustion engine, and having a secondary mass, which is movable relative to the primary mass. An assembly for vibration dampening and/or tuned vibration dampening of the relative motion between the primary mass and the secondary mass is formed in part outside of the rotating system of the torsional vibration damper or torsional tuned mass damper.
F16F 15/16 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid
F16F 15/167 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring
29.
Viscosity-torsional vibration damper or absorber for a crankshaft of a combustion engine
A viscosity-torsional vibration damper or absorber for a crankshaft of a combustion engine includes an annular damping or absorbing arrangement which can be fastened to the crankshaft. The damping or absorbing arrangement is fastened in an outer diameter region to a holding device which, on the other hand, can be fastened to the crankshaft and can be sprung in the axial direction of the crankshaft, but is inherently rigid radially with respect to the crankshaft.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
F16F 15/14 - Suppression of vibrations in rotating systems by making use of members moving with the system using freely-swinging masses rotating with the system
F16F 15/126 - Plastics springs, e.g. made of rubber consisting of at least one annular element surrounding the axis of rotation
F16H 45/02 - Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
30.
VISCOUS TORSIONAL-VIBRATION DAMPER AND METHOD FOR PRODUCING A VISCOUS TORSIONAL-VIBRATION DAMPER
The invention relates to a viscous torsional-vibration damper (1) comprising a damper housing (2) having an axis of rotation (100), an annular working chamber (5) filled with a damping medium, an inertia ring (4) arranged inside the working chamber (5), and a cover (15) for media-tight closure of the working chamber (5), wherein the cover (15) is connected to the damper housing (2) peripherally on one side by a sequence of a butt seam (16) and an overlap seam (17). The invention also relates to a method for producing a viscous torsional-vibration damper.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
31.
Torsional vibration damper having a bearing device
A viscous torsional vibration damper includes: a) an annular damper housing, which bounds a damper chamber; b) an inertia ring arranged in the damper chamber; c) a bearing device, which supports the inertia ring in the damper housing and which has at least one bearing element with an axial bearing region and/or a radial bearing region, d) a shear gap between the inertia ring and the damper housing, which shear gap is filled with a viscous fluid, e) wherein a plurality of the axial bearing segments and/or a plurality of the radial bearing segments is circumferentially distributed on the at least one bearing element.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
F16C 17/10 - Sliding-contact bearings for exclusively rotary movement for both radial and axial load
The invention relates to an elastic coupling with a rotating system which connects a first rotatable shaft (3a) and a second rotatable shaft (3b) in order to transmit a torque. The rotating system has a first coupling half (1) - primary mass - which can be rotationally fixed to the first shaft (3a) and a second coupling half (2) - secondary mass - which can be rotationally fixed to the second shaft (3b), wherein the secondary mass can be moved to a limited degree relative to the primary mass, and an assembly is provided for damping and/or absorbing and/or isolating vibrations of the relative movement between the primary mass and the secondary mass. The invention is characterized in that the assembly for damping and/or absorbing and/or isolating vibrations of the relative movement between the primary mass and the secondary mass is arranged at least partly outside of the rotating system of the elastic coupling.
F16D 3/12 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted for accumulation of energy to absorb shocks or vibration
F16D 3/80 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive in which a fluid is used
F16F 15/16 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid
A torsional vibration damper has a hub part primary mass mountable on a motor drive shaft, and an interia ring secondary mass which at least partially encloses the hub part in the radially outer region. A gap between the hub part and the inertia ring is filled with fluid. A seal device between the hub part and the flywheel ring prevents escape of the fluid. The seal device has a first ring connected tightly to the hub part, a second ring connected tightly to the inertia ring, and an elastomer ring connected on one side sealingly to the first ring and on the other side to the second ring.
F16F 15/14 - Suppression of vibrations in rotating systems by making use of members moving with the system using freely-swinging masses rotating with the system
F16F 15/167 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring
34.
TORSIONAL VIBRATION DAMPER OR TORSIONAL TUNED MASS DAMPER
The invention relates to a torsional vibration damper or torsional tuned mass damper having a rotating system having a primary mass, which is arranged, or preferably fixable for conjoint rotation on a rotatable shaft, such as a crankshaft (3) of a motor, for example, in particular an internal combustion engine, and having a secondary mass, which is movable relative to the primary mass, and having an assembly for vibration dampening and/or tuned vibration dampening of the relative motion between the primary mass and the secondary mass, wherein the assembly for vibration dampening and/or tuned mass dampening of the relative motion between the primary mass and the secondary mass is formed in part outside of the rotating system of the torsional vibration damper or torsional tuned mass damper.
F16F 15/167 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring
35.
Crankshaft assembly comprising a torsional vibration damper
A crankshaft assembly which is designed for a reciprocating-piston machine of an internal combustion engine includes a crankshaft, a torsional vibration damper for damping resonance torsional vibrations of the elastic torsion modes of the crankshaft, and an output. The torsional vibration damper has a primary mass inertia and a secondary mass inertia, the primary mass inertia being rigidly connected to a crankshaft and the secondary mass inertia being coupled as a seismic mass with a viscous liquid to the primary mass inertia. The torsional vibration damper is configured to assume the function of a flywheel for reducing rotational non-uniformity in addition to the function of reducing the resonance torsional vibrations of the crankshaft. The torsional vibration damper is attached to an output end of the crankshaft, and the torsional vibration damper forms a centrifugal mass which is divided into a primary mass inertia and a secondary mass inertia, wherein the three functions of a clutch functional section, a flywheel and a torsional vibration damper are integrated into the torsional vibration damper.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
F16F 15/126 - Plastics springs, e.g. made of rubber consisting of at least one annular element surrounding the axis of rotation
The invention relates to a viscosity-torsional vibration damper or absorber (1) for a crankshaft (3) of a combustion engine, comprising an annular damping or absorbing arrangement which can be fastened to the crankshaft (3), wherein the damping or absorbing arrangement is fastened in an outer diameter region to a holding device (6) which, on the other hand, can be fastened to the crankshaft (3) and can be sprung in the axial direction of the crankshaft (3), but is inherently rigid radially with respect to the crankshaft (3).
F16F 15/14 - Suppression of vibrations in rotating systems by making use of members moving with the system using freely-swinging masses rotating with the system
37.
Torsional vibration damper having a bearing device and method for producing the bearing device
A viscous torsional vibration damper has an annular damper housing defining a damper chamber; an inertia ring in the damper chamber; a bearing device supporting the inertia ring with one or more bearing elements. At least one bearing element is a ring not circumferentially closed in a mounted state. A shear gap between the inertia ring and the damper housing is filled with a viscous fluid. The at least one bearing element that is not circumferentially closed is cut to length from a strip. In order to produce the bearing element, a strip is provided, on which one or more axial bearing sections and one or more radial bearing sections and preferably one or more webs are formed. Then, the bearing element is cut to length from the strip and the bearing element is inserted into an open damper housing and laid on a bearing seat.
F16C 17/10 - Sliding-contact bearings for exclusively rotary movement for both radial and axial load
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
A torsional vibration damper (1) having a hub part (2) (primary mass) which can be fastened on a drive shaft of a motor, and a flywheel ring (3) (secondary mass) which encloses the hub part (2) in the radially outer region, a gap (4) which is filled with fluid and a seal device (5) being provided between the hub part (2) and the flywheel ring (3), by means of which seal device (5) the escape of the fluid is to be avoided, is configured in such a way that the seal devices (5) in each case have a first ring (6) which is connected tightly to the hub part (2) and a second ring (7) which is connected tightly to the flywheel ring (3), and a ring (8) which is made from an elastomer and is connected on one side sealingly to the first ring (6) and on the other side to the second ring (7).
F16F 15/14 - Suppression of vibrations in rotating systems by making use of members moving with the system using freely-swinging masses rotating with the system
F16F 15/167 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring
39.
CRANKSHAFT ASSEMBLY COMPRISING A TORSIONAL VIBRATION DAMPER
The invention relates to a crankshaft assembly (1) which is designed for a reciprocating-piston machine of an internal combustion engine, consisting of a crankshaft (2), a torsional vibration damper (3) for damping resonance torsional vibrations of the elastic torsion modes of the crankshaft, and an output (5), wherein the torsional vibration damper (3) consists of a primary mass inertia (31) and a secondary mass inertia (32), the primary mass inertia (31) being rigidly connected to a crankshaft (2) and the secondary mass inertia (32) being coupled as a seismic mass with a viscous liquid to the primary mass inertia (31). In addition to the function of reducing the resonance torsional vibrations of the crankshaft (2), the torsional vibration damper (3) is configured to also assume the function of a flywheel for reducing rotational non-uniformity, wherein the torsional vibration damper (3) is attached to an output end (5) of the crankshaft (2), and wherein the torsional vibration damper forms a centrifugal mass which is divided into a primary mass inertia and a secondary mass inertia, and wherein three functions - namely a clutch functional section, a flywheel and a torsional vibration damper - are integrated into the torsional vibration damper.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
40.
TORSIONAL VIBRATION DAMPER HAVING A BEARING DEVICE AND METHOD FOR PRODUCING THE BEARING DEVICE
The invention relates to a viscous torsional vibration damper having the following features: an annular damper housing (1), which bounds a damper chamber (2); an inertia ring (3) arranged in the damper chamber (2); a bearing device, which supports the inertia ring (3) in the damper housing and which has one or more bearing elements (5, 6; 5', 6'), wherein at least one of the bearing elements (5, 6; 5', 6') is designed as a ring that is not circumferentially closed in a mounted state; a shear gap (4) between the inertia ring (3) and the damper housing (1), which shear gap is filled with a viscous fluid, wherein the at least one bearing element (5, 6; 5', 6') designed as a ring that is not circumferentially closed is cut to length from a strip. In order to produce the bearing element, a strip is provided, on which one or more axial bearing sections (7) and one or more radial bearing sections (8) and preferably one or more webs are formed. Then, the bearing element (5, 6; 5', 6') is cut to length from the provided strip and the bearing element (5, 6; 5', 6') that has been cut to length is inserted into an open damper housing (1) and laid on a bearing seat.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
F16C 17/10 - Sliding-contact bearings for exclusively rotary movement for both radial and axial load
F16C 33/20 - Sliding surface consisting mainly of plastics
The invention relates to a viscous torsional vibration damper having the following features: a) an annular damper housing (1), which bounds a damper chamber (2); b) an inertia ring (3) arranged in the damper chamber (2); c) a bearing device, which supports the inertia ring (3) in the damper housing and which has at least one bearing element (5, 6; 5', 6') with an axial bearing region (8) and/or a radial bearing region (7), d) a shear gap (4) between the inertia ring (3) and the damper housing (1), which shear gap is filled with a viscous fluid, e) wherein a plurality of the axial bearing segments (8) and/or a plurality of the radial bearing segments (7) is circumferentially distributed on the at least one bearing element (5, 6; 5', 6').
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
F16C 17/10 - Sliding-contact bearings for exclusively rotary movement for both radial and axial load
42.
ACTUATOR ARRANGEMENT FOR APPLYING A TORQUE TO A SHAFT, IN PARTICULAR A CRANKSHAFT OF A RECIPROCATING PISTON ENGINE, AND A CORRESPONDING METHOD
The invention relates to an actuator arrangement (1) for applying a torque to a shaft (2) of a machine, in particular a reciprocating piston engine, having a) at least one actuator device (19) for applying the torque, b) at least one rotatable, seismic mass (4) coupled to the shaft (2). C) The at least one actuator device (19) is designed to apply the torque to the shaft (2) between the seismic mass and the shaft (2). The invention further relates to a corresponding method for active damping of torsional vibrations of a shaft (2) having the actuator arrangement.
F16F 15/14 - Suppression of vibrations in rotating systems by making use of members moving with the system using freely-swinging masses rotating with the system
A rotary viscous vibration damper or absorber has a hub part which can be fastened to a crankshaft of an engine, in particular of an internal combustion engine, and a vibration damper ring which is mounted such that it can be rotated relative to the hub part. A shear gap which is filled with a silicone oil is formed between the hub part and the vibration damper ring, in which shear gap flange bushings for guiding the vibration damper ring are mounted. The flange bushings are composed of a liquid crystal polymer.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
44.
ROTARY VISCOUS VIBRATION DAMPER OR ROTARY VISCOUS VIBRATION ABSORBER
Rotary viscous vibration damper or absorber (1), having a hub part which can be fastened to a crankshaft (M) of an engine, in particular of an internal combustion engine, and a vibration damper ring (2) which is mounted such that it can be rotated relative to the hub part, wherein a shear gap (3) which is filled with a silicone oil is formed between the hub part and the vibration damper ring (2), in which shear gap (3) flange bushings (4) for guiding the vibration damper ring (2) are mounted, wherein the flange bushings (4) are composed of a liquid crystal polymer.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
45.
METHOD FOR ACTIVELY DAMPING TORSIONAL VIBRATIONS OF A SHAFT OF AN ENGINE, IN PARTICULAR OF A CRANKSHAFT OF A RECIPROCATING PISTON ENGINE, AND A CORRESPONDING ARRANGEMENT FOR CARRYING OUT SAID METHOD
A method for actively damping the torsional vibrations of a crankshaft (2) of a reciprocating piston engine (1) comprises the following steps: (S1) capturing input data by measuring operating states of the reciprocating piston engine (1); (S2) determining control data using the captured input data; and (S3) actively damping the torsional vibrations of the crankshaft (2) by controlling an actuator (8) that is operatively connected to the crankshaft (2) with the determined control data. An arrangement for carrying out the method comprises: a) a reciprocating piston engine (1) with a crankshaft (2) and an engine control unit (3); and b) a damping unit (4) with a damping control device (9) for controlling the damping unit (4), a sensor unit (5) for detecting a speed (n) of the crankshaft (2) and an actuator (8) for damping the torsional vibrations of the crankshaft (2). The sensor unit (5) and the actuator (8) are mounted on the crankshaft (2) in operative connection thereto.
F16F 15/00 - Suppression of vibrations in systemsMeans or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
46.
METHOD FOR ACTIVELY DECOUPLING A DRIVE TRAIN FROM TORSIONAL VIBRATIONS OF A SHAFT OF AN ENGINE, IN PARTICULAR OF A CRANKSHAFT OF A RECIPROCATING PISTON ENGINE, AND A CORRESPONDING ARRANGEMENT FOR CARRYING OUT SAID METHOD
A method for actively decoupling a drive train (14) from the torsional vibrations of a shaft of an engine, in particular of a crankshaft (2) of a reciprocating piston engine (1), comprises the following steps: (S1) capturing input data by measuring operating states of the reciprocating piston engine (1); (S2) determining control data using the captured input data; and (S3) actively decoupling the drive train (14) from the torsional vibrations of the shaft, in particular of the crankshaft (2), by controlling an actuator (8) with the determined control data, the shaft, in particular the crankshaft (2), and the drive train (14) being coupled via the actuator (8). An arrangement for carrying out the method comprises: a) a reciprocating piston engine (1) with a crankshaft (2) and an engine control unit (3); a decoupling unit (4) with a decoupling control device (9) for controlling the decoupling unit (4), a sensor unit (5) for detecting a speed (n) of the crankshaft (2) and an actuator (8); and c) a drive train (14). The sensor unit (5) and the actuator (8) are arranged in operative connection to the crankshaft (2). The drive train (14) is coupled to the crankshaft (2) via the actuator (8) and the actuator (8) is designed to actively decouple the drive train (14) from the torsional vibrations of the crankshaft (2).
KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GMBH (Germany)
Inventor
Kiener, Wolfgang
Knopf, Florian
Hitziger, Hubert
Abstract
The invention relates to a viscous torsional vibration damper or viscous torsional vibration insulator (2) for reducing torsional vibrations at the crankshaft (1) of a reciprocating piston engine. A ventilator disc (5) with a plurality of blade-like or wing-like elevations (6, 6a) is disposed at the housing (3) of the viscous vibrational damper or the viscous insulator (2) for cooling the latter. The viscous vibrational damper or the viscous insulator (2) is constructed so that the ventilator disc (5) with the elevations (6, 6a) thereof is formed as a signal generator for a sensor (7) for determining the actual angular position of the crankshaft (1) and is provided with an accurate splitting of the elevations (6, 6a) required for this purpose.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
48.
VISCOSE TORSIONAL VIBRATION DAMPER HAVING AT LEAST ONE PULLEY DECOUPLED FROM THE VIBRATIONS OF A CRANKSHAFT
The invention relates to a viscose torsional vibration damper having at least one pulley (5a) that is decoupled from the vibrations of a crankshaft, wherein the vibration damper comprises a damper ring (2) that can be rotated in a damper housing (1) filled with a viscous medium relative thereto, and wherein bearings (40, 41, 42) and elastic couplings for the relative rotatable and elastic support of the pulley (5a) or pulleys (5a, 5b) in the circumferential direction with respect to the damper housing (1) are provided. At least one pulley (5a) is arranged axially adjacent to the damper housing (1). A carrier part (20) is provided on the damper housing for supporting said pulley (5a) and comprises an axial protrusion (4), a flange (21) directed radially outward on the end facing away from the damper housing (1), and a ring section (22) directly connecting thereon and extending in the direction of the damper housing (1). A chamber (23) is formed by the axial protrusion (4), the flange (21), and the ring section (22), the coupling elements being arranged inside said chamber. The pulley (5a) axially adjacent to the damper housing (1) is supported on the carrier part (20) and is coupled in a rotationally elastic manner via the coupling elements arranged in the chamber (23) relative to the damper housing (1) in the circumferential direction like all other pulleys (5b).
F16F 15/12 - Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
Described is a rotary oscillation damper (1) for damping rotary oscillations of a shaft, in particular of the crankshaft of a piston internal combustion engine, having a housing (2) which is connected to the shaft and which has a closed, annular holding chamber (3) for holding a flywheel ring (5) and a highly viscous fluid, wherein the flywheel ring (5) is coupled by means of spring elements to the housing (2), characterized in that the flywheel ring is coupled in the region of at least one of its end sides to the housing (2) by means of elastic elements. The elastic elements which are used as coupling elements are preferably composed of bow springs (6), wherein it is also possible for a plurality of bow springs (6) to be layered axially one on top of the other. The stiffness and damping of the rotary oscillation damper (1) can be optimally set by means of a design of said type.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
A torsional vibration damper (1) is described for damping torsional vibrations of a shaft, in particular of the crankshaft of a reciprocating engine, having a housing (2) which is connected to the shaft and has a closed, annular receiving chamber (3) for receiving a flywheel ring (5) and a highly viscous fluid, wherein the flywheel ring (5) is coupled to the housing (2) via spring elements. Here, the characteristic is determined firstly by the shearing forces of the highly viscous fluid, in particular the silicone oil, in the gap spaces and secondly by the spring characteristic or rigidity of the resilient supporting ring (6). The special feature of the torsional vibration damper (1) lies in the fact that the flywheel ring (5) is mounted circumferentially on an elastic supporting ring (6) which is connected to the housing (2). As an alternative, there is also the possibility to design a torsional vibration damper (1) of the above-described type in such a way that the flywheel ring (5) is mounted on the inside on a rotationally elastic axial bearing.
F16F 15/14 - Suppression of vibrations in rotating systems by making use of members moving with the system using freely-swinging masses rotating with the system
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
The invention relates to a torsional vibration damper (1), comprising a housing (2), a cover closing the housing (2) and a flywheel ring (3) that is movably mounted inside the housing (2) which is closed and filled with a fluid, the housing (2) being provided with a central bearing borehole (4). The flywheel ring (3) is connected to several spring elements (6), for example in the form of leaf springs, which have a spoked arrangement and are fixed in a hub-type retaining ring (5) in the central region of the housing (2). Due to the fixation of the flywheel ring (3) to said spring elements, preferably in the form of leaf springs (6), the overall behaviour of a corresponding torsional vibration damper (1) can be influenced in a particularly practical manner without necessitating high costs.
F16F 15/121 - Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
patents
