US 12,078,213 B2
Torque transmission device with springs in series and torque transmission system comprising such a device
Didier Bagard, Cergy Pontoise (FR); Pierre Boucheny, Cergy Pontoise (FR); David Denizot, Cergy Pontoise (FR); and Olivier Marechal, Cergy Pontoise (FR)
Assigned to VALEO EMBRAYAGES, Amiens (FR)
Appl. No. 17/414,139
Filed by VALEO EMBRAYAGES, Amiens (FR)
PCT Filed Dec. 19, 2019, PCT No. PCT/EP2019/086172
§ 371(c)(1), (2) Date Jun. 15, 2021,
PCT Pub. No. WO2020/127639, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 1873595 (FR), filed on Dec. 20, 2018; and application No. 1900747 (FR), filed on Jan. 28, 2019.
Prior Publication US 2022/0065305 A1, Mar. 3, 2022
Int. Cl. F16F 15/123 (2006.01); F16D 3/12 (2006.01)
CPC F16D 3/12 (2013.01) [F16F 15/12333 (2013.01); F16F 15/12346 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A torque transmission device comprising:
a first element which is able to rotate about an axis of rotation;
a second element which is able to rotate about the axis of rotation;
a third element which is able to rotate about the axis of rotation;
a first spring which is arranged between the first element and the third element so as to be compressed elastically upon relative rotation between the first element and the third element,
a second spring which is arranged between the second element and the third element so as to be compressed elastically upon relative rotation between the second element and the third element, the first spring and the second spring being arranged in series between the first element and the second element by way of a torque transfer element of the third element,
a first supporting seat positioned at a first end of the first spring between the first element and the first spring so as to transfer torque between the first element and the first spring in a first direction of relative rotation of the first element and second element, and between the second element and the first spring so as to transfer torque between the second element and the first spring in a second direction of relative rotation of the first element and second element,
a second supporting seat positioned at a first end of the second spring between the second element and the second spring so as to transfer torque between the second element and the second spring in the first direction of relative rotation of the first element and second element, and between the first element and the second spring so as to transfer torque between the first element and the second spring in the second direction of relative rotation of the first element and second element,
wherein the third element comprises the torque transfer element directly transferring torque between the first spring and the second spring,
wherein the torque transmission device further comprises
a plurality of first springs and a plurality of second springs organized in spring pairs, the third element being a phasing member comprising a plurality of torque transfer elements, each torque transfer element being interposed between the first spring and the second spring of a spring pair, the first spring and the second spring of each spring pair being arranged in series by way of a torque transfer element, and the phasing member comprising at least one phase washer provided with an annular portion extending about the axis of rotation, and
a plurality of first supporting seats each positioned at a first end of a first spring and a plurality of second supporting seats each positioned at a first end of a second spring, and
wherein each phase washer comprises a tab extending radially from the annular portion and arranged circumferentially between the first spring and the second spring and each torque transfer element is formed by an insert mounted on at least one of the tabs of a phase washer, each insert being made of steel, each insert being clamped axially between a tab of one phase washer and a tab of another phase washer, the insert being assembled with the two tabs of phase washer between which the insert is fitted by means of a fastener.