The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 10, 2006

Filed:

Mar. 05, 2004
Applicants:

Hideo Okuzaki, Saitama, JP;

Kenji Sakakibara, Saitama, JP;

Yoshihisa Kanno, Saitama, JP;

Inventors:

Hideo Okuzaki, Saitama, JP;

Kenji Sakakibara, Saitama, JP;

Yoshihisa Kanno, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 39/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A pump and motor distribution valve formed by a hydraulic closed circuit for connection between a pump and a motor. In a hydraulic non-stage transmission CVT including a swash plate plunger type hydraulic pump P and a swash plate plunger type hydraulic motor M connected to each other through a hydraulic closed circuit, a pump swash plate member is driven to rotate. A pump cylinder and a motor cylinder are connected to each other and disposed in a connected state on an output shaft. A motor swash plate, restricted in rotation, is oscillated, and the swash plate angle can be regulated variably. A pump-side spool rotatable as one body with the pump swash plate member and a motor-side spool maintained fixedly are inserted in a valve hole formed in the output shaft to penetrate through the output shaft in the axial direction. A hydraulic closed circuit includes the spools and a plurality of communication oil passages formed in the pump cylinder, the motor cylinder and the output shaft.


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