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Title:
油圧式無段変速装置
Document Type and Number:
Japanese Patent JP4814598
Kind Code:
B2
Abstract:
It is an object, in a hydraulic stepless transmission, to change capacity of a hydraulic pump to thereby make output characteristic different between forward and reverse travel and obtain efficient output characteristics. In the hydraulic stepless transmission formed of the hydraulic pump 10 and a variable displacement-type hydraulic motor 11 and including control means 4, 10 for carrying out capacity control based on a load received by the hydraulic stepless transmission, a pressure control valve 204 is connected to control pressure portions of the control means 4, 10 for carrying out the capacity control according to pressure in a hydraulic circuit 13 on a discharge side of the hydraulic pump 10 to carry out the capacity control of the variable pump and the motor 11.

Inventors:
坂本 訓彦
Application Number:
JP2005272788A
Publication Date:
November 16, 2011
Filing Date:
September 20, 2005
Export Citation:
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Assignee:
ヤンマー株式会社
International Classes:
F16H61/4017; B60K17/10; F16H39/02; F16H39/04; F16H61/40; F16H61/42; F16H61/421; F16H61/423; F16H61/431; F16H61/433; F16H59/14
Domestic Patent References:
JP60014651A
JP4171362A
JP63259180A
JP2286963A
JP2004011769A
Attorney, Agent or Firm:
矢野 寿一郎



 
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