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:
Kunihiko Sakamoto
Application Number:
JP2005272788A
Publication Date:
November 16, 2011
Filing Date:
September 20, 2005
Export Citation:
Assignee:
Yanmar Co., Ltd.
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:
Juichiro Yano