Title:
無段変速機の油圧回路
Document Type and Number:
Japanese Patent JP7456787
Kind Code:
B2
Abstract:
To provide a hydraulic circuit of a non-stage transmission which can prevent an oil from being released from a cylinder chamber when an engine etc. (an oil pump) stops to improve start responsiveness during re-start of the engine.SOLUTION: A hydraulic circuit 1 of a non-stage transmission includes an on-off valve 50 which is disposed on a first oil passage 71 connected to a primary cylinder chamber 22 and opens or closes the first oil passage 71. The on-off valve 50 has: a valve body 52; and an elastic member 53 which biases the valve body 52 in a valve closing direction. When the primary pulley 21 stops, the valve body 52 is moved to a valve closing position by a biasing force of the elastic member 53 regardless of a stop position of the primary pulley 21. When the primary pulley 21 rotates, the valve body 52 is moved to a valve opening position by a centrifugal force acting on the valve body 52.SELECTED DRAWING: Figure 3
Inventors:
Shinya Horie
Hisae Sakoda
Mitsusei Ito
Hisae Sakoda
Mitsusei Ito
Application Number:
JP2020011392A
Publication Date:
March 27, 2024
Filing Date:
January 28, 2020
Export Citation:
Assignee:
Subaru corporation
International Classes:
F16H61/00; F16H9/18
Domestic Patent References:
| JP2007192375A | ||||
| JP2006300270A |
Attorney, Agent or Firm:
Kazuhiro Ueda