Torque converter lock-up device
AssigneeExedy Corporation
InventorYuki KAWAHARA
Life of this patent
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Abstract
The lock-up device includes a piston, a drive plate, a plurality of radial outer side torsion springs, a float member, a driven plate, a plurality of radial inner side torsion springs and an intermediate member. The float member is rotatable relative to the drive plate and causes the radial outer side torsion springs to act in series. The intermediate member is rotatable relative to the drive plate and the driven plate, and transmits torque from the radial outer side torsion springs to the radial inner side torsion springs.
Claims27
A torque converter lock-up device disposed in a space between a front cover and a turbine in a torque converter to mechanically connect the front cover and the turbine, the torque converter lock-up device comprising:
- a piston configured to selectively frictionally engage the front cover;
- a drive plate coupled to the piston;
- first and second radial outer side elastic members configured to receive torque from the drive plate;
- a float member configured to rotate relative to the drive plate, the float member configured to cause the first and second radial outer side elastic members to act in series, and including an inserted part being inserted between the first radial outer side elastic member and the second radial outer side elastic member;
- a driven plate coupled to the turbine;
- first and second radial inner side elastic members disposed inwardly in a radial direction of the first and second radial outer side elastic members to transmit the torque to the driven plate;
- and
- an intermediate member configured to rotate relative to the drive plate and the driven plate, the intermediate member configured to transmit the torque from the first and second radial outer side elastic members to the first and second radial inner side elastic members.
A torque converter lock-up device disposed in a space between a front cover and a turbine in a torque converter to mechanically connect the front cover and the turbine, the torque converter lock-up device comprising:
- a piston configured to selectively frictionally engage the front cover;
- a drive plate coupled to the piston;
- first and second radial outer side elastic members configured to receive torque from the drive plate;
- a driven plate coupled to the turbine;
- first and second radial inner side elastic members disposed inwardly in a radial direction of the first and second radial outer side elastic members to transmit the torque to the driven plate;
- an intermediate member configured to rotate relative to the drive plate and the driven plate, the intermediate member configured to transmit the torque from the first and second radial outer side elastic members to the first and second radial inner side elastic members;
- and
- a float member configured to rotate relative to the drive plate and the intermediate member, the float member configured to cause the first and second radial outer side elastic members to act in series.
Dependencies are inferred from the claim text.