Fluid torque transmission device equipped with lockup device
AssigneeExedy Corporation
InventorsKozo Yamamoto, Kazuhiro Yamashita
Life of this patent
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Abstract
A torque converter with a lockup damper is provided to improve the vibration damping function. The torque converter 1 has the lockup device 7 for mechanically connecting and disconnecting a front cover 11 and a turbine 22, which includes a clutch mechanism and a damper mechanism. A friction generating mechanism 45 is a mechanism that generates friction resistance when the lockup damper operates, and includes a friction washer 52, which constitutes a friction surface, and a micro twisting angle adjustment gap 56, which is arranged to prevent the friction washer 52 from operating within a range of micro twisting angles.
Claims19
A fluid torque transmission device comprising:
- a front cover;
- an impeller being arranged with said front cover to form a fluid chamber;
- a turbine being arranged to oppose said impeller in an axial direction inside said fluid chamber;
- a lockup device being configured to connect and disconnect mechanically said front cover and said turbine, said lockup device having a clutch mechanism and an elastic connection mechanism;
- and
- a friction generating mechanism being configured to generate friction resistance during operation of said lockup device, said friction generating mechanism having a friction surface and a micro gap, said micro gap being configured to prevent said friction surface from operating within a range of micro twisting angles.
A torque converter comprising:
- a front cover;
- an impeller being configured to rotate integrally with said front cover;
- a turbine being arranged to oppose axially said impeller, and being arranged axially between said impeller and said front cover;
- a lockup device being arranged to connect and disconnect said turbine and said front cover;
- and
- a friction generating mechanism being configured to generate friction resistance during operation of said lockup device, said friction generating mechanism having a friction surface and a micro gap, said micro gap being configured to prevent said friction surface from operating within a range of micro twisting angles, said friction generating mechanism being arranged between said front cover and said turbine.
Dependencies are inferred from the claim text.