Title:
油圧式無段変速機
Document Type and Number:
Japanese Patent JP4012839
Kind Code:
B2
Abstract:
A pump and motor distribution valve formed by a hydraulic closed circuit for connection between a pump and a motor. In a hydraulic non-stage transmission CVT including a swash plate plunger type hydraulic pump P and a swash plate plunger type hydraulic motor M connected to each other through a hydraulic closed circuit, a pump swash plate member is driven to rotate. A pump cylinder and a motor cylinder are connected to each other and disposed in a connected state on an output shaft. A motor swash plate, restricted in rotation, is oscillated, and the swash plate angle can be regulated variably. A pump-side spool rotatable as one body with the pump swash plate member and a motor-side spool maintained fixedly are inserted in a valve hole formed in the output shaft to penetrate through the output shaft in the axial direction. A hydraulic closed circuit includes the spools and a plurality of communication oil passages formed in the pump cylinder, the motor cylinder and the output shaft.
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Inventors:
Okuzaki Hideo
Kenji Sakakibara
Yoshihisa Kanno
Kenji Sakakibara
Yoshihisa Kanno
Application Number:
JP2003069041A
Publication Date:
November 21, 2007
Filing Date:
March 14, 2003
Export Citation:
Assignee:
Honda motor industry stock company
International Classes:
F16H39/14; F16H61/42; F16H47/02
Domestic Patent References:
| JP7113454A | ||||
| JP2159469A |
Attorney, Agent or Firm:
Masago Onishi