JPH0410153U

JPH0410153U -

Info

Publication number: JPH0410153U
Application number: JP5149190U
Authority: JP
Priority date: 1990-05-16
Filing date: 1990-05-16
Publication date: 1992-01-28

Description

[Brief explanation of the drawing]

第１図は本考案を適用したトルクコンバーター
のロツクアツプ装置の縦断面図、第２図は環状弁
の正面部分図、第３図はトルクコンバーター全体
の断面略図、第４図は従来例の縦断面図である。１……フロントカバー、３……タービン羽根車
、２……ポンプ羽根車、８……ピストンプレート
、１６……作動油室。 Fig. 1 is a longitudinal cross-sectional view of a torque converter lockup device to which the present invention is applied, Fig. 2 is a partial front view of an annular valve, Fig. 3 is a schematic cross-sectional view of the entire torque converter, and Fig. 4 is a longitudinal cross-section of a conventional example. It is a diagram. 1... Front cover, 3... Turbine impeller, 2... Pump impeller, 8... Piston plate, 16... Hydraulic oil chamber.

Claims

[Scope of utility model registration request]

A lock-up piston plate is provided between the input side front cover and the turbine impeller so as to be movable in the axial direction, and a facing is provided at the outer peripheral end of the piston plate to face the front cover so as to be able to press against the front cover in the axial direction. In a torque converter lock-up device that moves the piston plate in the axial direction to engage and engage the clutch due to the pressure difference between the hydraulic oil chamber on the front cover side and the internal space of the torque converter on the opposite side, the hydraulic oil chamber is moved radially outward. A flexible annular valve that partitions the inner chamber into an outer chamber and an inner chamber radially inward and allows flow from the inner chamber to the outer chamber is installed at a certain distance radially outward from the inner peripheral end of the piston plate. A lock-up device for a torque converter, which is characterized in that it is provided with a lock-up device for a torque converter.