Power plants – Pressure fluid source and motor – Input pump and rotary output motor system having...
Reexamination Certificate
2011-03-01
2011-03-01
Lazo, Thomas E (Department: 3745)
Power plants
Pressure fluid source and motor
Input pump and rotary output motor system having...
C060S452000
Reexamination Certificate
active
07895834
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 pump10and a variable displacement-type hydraulic motor11and including control means4, 10for carrying out capacity control based on a load received by the hydraulic stepless transmission, a pressure control valve204is connected to control pressure portions of the control means4, 10for carrying out the capacity control according to pressure in a hydraulic circuit13on a discharge side of the hydraulic pump10to carry out the capacity control of the variable pump and the motor11.
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Lazo Thomas E
Sterne Kessler Goldstein & Fox P.L.L.C.
Yanmar Co. Ltd.
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