# US 2014/0194213 A1 · Torsion damping device comprising pendular flyweights that are axially offset in relation to guide washers > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0194213 A1 - Document ID: US20140194213A1 - Status: Published application - Kind: A1 - Application number: 14/125,780 - Filed: 2012-04-25 - Published: 2014-07-10 - Earliest claimed: 2011-06-14 - Assignees: Valeo Embrayages - Inventors: Roel Verhoog; Lionel Renier - Web page: https://patentgrep.com/patent/US20140194213A1 ## CPC - F16F 15/12353: {Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations} - F16D 3/12: specially adapted for accumulation of energy to absorb shocks or vibration (by making use of fluid elements F16D3/80) - F16F 15/12373: {the sets of springs being arranged at substantially the same radius} - F16F 15/145: {Masses mounted with play with respect to driving means thus enabling free movement over a limited range} - F16H 45/02: with mechanical clutches for bridging a fluid gearing of the hydrokinetic type (control of torque converter lock-up clutches F16H61/14) - F16H 2045/0263: {the damper comprising a pendulum} - F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION - F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES - F16H: GEARING ## Abstract A torsion damping device (10) equipped with first torsion damping system that comprise a radial phase washer (38) and two guide washers (20A, 20B) and elastic members (36); the damping device being equipped with second torsion 5 damping system that have two pendulum flyweights (54A, 54B) that are mounted oscillatingly on a support element (56) that is rotationally integral with the phase washer (38); wherein the support element (56) is offset axially with respect to the guide washers (20A, 20B) in such a way that the two pendulum flyweights (54A, 54B) are offset axially on the same side with respect to the two guide washers (20A, 20B). ## Claims ### Claim 1 A torsion damping device (10) between an axially oriented coaxial drive shaft and driven shaft in an automotive temporary coupling system, the device (10) being equipped with first torsion damping means that comprise: a torque input element (20A, 20B) and a torque output element (12) mounted rotatably around an axis coaxial with that of the shafts; at least two circumferentially acting elastic members (36) that are interposed circumferentially in series between the input element (20A, 20B) and the output element (12); two radial guide washers (20A, 20B) that are arranged axially on either side of the elastic members (36) and that have axial retention means (46, 50, 52) for the elastic members (36), the guide washers (20A, 20B) having a peripheral portion that extends radially outward from the axial retention means (46, 50, 52); at least one radial phase washer (38) that is freely rotatable with respect to the input element (20A, 20B) and with respect to the output element (12), the phase washer (38) having at least one radial phasing tab (48) that is interposed circumferentially between the two elastic members (36) in series, the damping device being equipped with second torsion damping means that have: at least one pendulum flyweight (54A, 54B) that is mounted oscillatingly in a radial plane on a support element (56) that is rotationally integral with the phase washer (38), wherein the support element (56) is offset axially on the same side with respect to the peripheral portions of the two guide washers (20A, 20B), in such a way that the pendulum flyweight (54A, 54B) is offset axially on the same side with respect to the peripheral portions of the two guide washers (20A, 20B). ### Claim 2 The device (10) according to the preceding claim, wherein the second damping means have at least one pair of flyweights (54A, 54B) that are arranged axially oppositely on either side of the support element (56), the axial offset of the support element (56) being implemented in such a way that the two flyweights (54A, 54B) are axially offset on the same side of the peripheral portions of the two guide washers (20A, 20B). ### Claim 3 (depends on 1) The device (10) according to claim 1, wherein the guide washers (20A, 20B) constitute torque input elements. ### Claim 4 (depends on 3) The device (10) according to claim 3, wherein the radially inner terminal edge (58) of the flyweights (54A, 54B) is arranged with respect to the rotation axis (B) at a radial distance (D1) that is less than the radial dimension (D2) of the assemblage constituted by the input element (20A, 20B) and the output element (12). ### Claim 5 (depends on 1) The device (10) according to claim 1, wherein the support element (56) is embodied integrally with the phase washer (38). ### Claim 6 (depends on 1) The device (10) according to claim 1, wherein the support 20 element (56) is an added part that is fastened onto the phase washer (38). ### Claim 7 (depends on 6) The device (10) according to claim 6, wherein the phase washer (38) has at least one peripheral arm (60) that extends at least partially in the axial direction in order to allow the axial offset of the support element (56). ### Claim 8 (depends on 7) The device (10) according to claim 7, wherein the axial arm (60) is arranged radially externally with respect to the elastic members (36). ### Claim 9 (depends on 6) The device (10) according to claim 6, wherein the support element (56) is fastened to the phase washer by riveting. ### Claim 10 (depends on 6) The device (10) according to claim 6, wherein the support element (56) is fastened to the phase washer (38) by welding. ### Claim 11 (depends on 1) The device (10) according to claim 1, wherein the phasing tab (48) has rims (62) for radially retaining the elastic members (36), the rims (62) being carried by an added part that is fastened onto the phase washer (38). ### Claim 12 (depends on 1) The device (10) according claim 1, wherein the support element (56) is in the form of a ring that extends in a radial plane. ### Claim 13 (depends on 1) A torque converter having a splined torque input hub (22) that is rotationally integral with the torque input element (20A, 20B), the converter being equipped with a damping device implemented according to claim 1, wherein at least one flyweight (54A) is arranged radially opposite the splined hub (22).