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.
Patent No.:
Date of Patent:
Mar. 02, 2004
Filed:
Mar. 14, 2002
Applicant:
Inventors:
Masataka Hashimoto, Gifu, JP;
Osamu Nohara, Gifu, JP;
Assignee:
Teijin Seiki Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D 3/102 ;
U.S. Cl.
CPC ...
F16D 3/102 ;
Abstract
When the load acting on a fluid motor ( ) increases, a changeover valve ( ) starts to be changed over toward a low-speed position L, but at this time an additional pilot fluid whose pressure is determined by the amount of fluid flowing into or out of a second passage ( ) through first and second notches functions as a pressure regulator for a spool ( ), and lowers the pressure within the second passage ( ) without lowering the pressure within a high pressure-side main circuit ( ), thereby tilting a swash plate ( ) from a position of high-speed rotation to a position of low-speed rotation.