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Patent Searching and Data


Title:
静油圧式無段変速機
Document Type and Number:
Japanese Patent JP5007141
Kind Code:
B2
Abstract:
A hydrostatic continuously variable transmission is configured by connecting a swash plate type plunger hydraulic pump P and a swash plate type plunger hydraulic motor via a hydraulic closed circuit. A continuous shift control is executed by variably controlling an inclined angle of the swash plate of the hydraulic motor. A valve spool movably arranged in a spool hole axially extends in a shaft that supports the hydraulic pump and the hydraulic motor and is configured by coupling a first spool member provided with a guide land fitted in a guide member and a second spool member provided with a central land and a left land and provided with a valve that connects and cuts off a clutch oil passage on the high pressure side and a clutch oil passage on the low pressure side according to axial movement by a coupling pin.

Inventors:
中野 賢一
吉田 圭宏
Application Number:
JP2007095034A
Publication Date:
August 22, 2012
Filing Date:
March 30, 2007
Export Citation:
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Assignee:
本田技研工業株式会社
International Classes:
F16H39/14
Domestic Patent References:
JP2005256980A
JP7006568U
JP57072372U
JP6099825A
JP8152071A
Attorney, Agent or Firm:
大西 正悟