Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hironori Sumomozawa0
Shigenori Sakikawa0
Ryota Ohashi0
Date of Patent
July 5, 2011
0Patent Application Number
117353980
Date Filed
April 13, 2007
0Patent Primary Examiner
Patent abstract
A hydraulic transmission comprises a hydraulic pump and a hydraulic motor, which are mounted onto a center section to be fluidly connected to each other through a closed fluid circuit formed in the center section. A neutral valve is connected to the closed fluid circuit. The neutral valve is fitted into an outward opened end of a vertical slanted oil hole of the closed fluid circuit. Alternatively, the neutral valve is fitted into an outward opened end of a straight oil hole having an opposite outward opened end into which a charge check valve is fitted.
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