Oil channel structure for automatic transmission
AssigneeAisin Aw Co., Ltd.
InventorsYouichi Hayakawa, Ryoichi Shirai
Life of this patent
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Abstract
A plurality of oil channels formed in a casing is communicated with a single rotating hydraulic actuator. The casing comprises a transaxle casing on which a valve body is disposed, and a rear cover is fixed to the transaxle casing. The oil channels extend outwardly from a boss section in the casing and are radially arranged in a single plane of the rear cover. Oil from the hydraulic actuator is instantly exhausted through oil holes of an inner drum, an annular indented groove of the boss section, indented portions of sector shape and the oil channels.
Claims5
An oil channel structure in an automatic transmission, comprising:
- a casing having a boss section,
- a valve body attached to the casing,
- a hydraulic actuator adapted to operate a clutch of the automatic transmission, said hydraulic actuator including a cylinder slidably situated on said boss section, and a movable member retained in the cylinder to constitute an oil chamber therebetween, and
- means for communicating between said hydraulic actuator and said valve body, said communicating means including a plurality of oil channels extending outwardly from said boss section and radially thereof in a single plane to supply oil from said valve body to said hydraulic actuator through said oil channels so that oil is smoothly supplied to and exhausted from the hydraulic actuator through the oil channels.
Dependencies are inferred from the claim text.