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Patent Searching and Data


Title:
HYDRAULIC CONTINUOUSLY VARIABLE TRANSMISSION DEVICE
Document Type and Number:
Japanese Patent JP2007085404
Kind Code:
A
Abstract:

To change output characteristics in forward and reverse travels by changing displacement of a hydraulic pump, and to provide efficient output characteristics in a hydraulic continuously variable transmission device.

In the hydraulic continuously variable transmission device which is comprised of: a hydraulic pump 10; and a variable displacement hydraulic motor 11, and includes control means 4, 10 performing displacement control according to load received by the hydraulic continuously variable transmission device, a pressure control valve 04 is connected to a control pressure parts of the control means 4, 10 performing displacement control according to pressure in a hydraulic circuit 13 in a delivery side of the hydraulic pump 10, and displacement control of the variable pump and the motor 11 is made.


Inventors:
SAKAMOTO NORIHIKO
Application Number:
JP2005000272788
Publication Date:
April 05, 2007
Filing Date:
September 20, 2005
Export Citation:
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Assignee:
YANMAR CO LTD
International Classes:
F16H61/42; B60K17/10; F16H39/02; F16H39/04; F16H61/40; F16H61/4017; F16H61/421; F16H61/423; F16H61/431; F16H61/433; F16H59/14
Domestic Patent References:
JPH04171362A1992-06-18
JPS63259180A1988-10-26
JPH02286963A1990-11-27
JP2004011769A2004-01-15
JPS6014651A1985-01-25
Attorney, Agent or Firm:
矢野 寿一郎