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. 10, 1998
Filed:
Jun. 07, 1995
Satoshi Matsumoto, Kanagawa, JP;
Norio Saitoh, Kanagawa, JP;
Shigeru Matsuo, Kanagawa, JP;
Yasuo Kato, Kanagawa, JP;
Toshiba Machine Co., Ltd., Tokyo, JP;
Abstract
A system for controlling a discharge flow rate of a variable displacement pump within an oil hydraulic circuit is disclosed. A bypass with a flow restricting valve couples the pressure control chamber of the discharge flow rate controller to the tank line to thereby allow a part of the oil in the pressure control chamber to escape through the bypass to the tank line. This escape occurs when a highly pressured oil is rapidly injected into the pressure control chamber of the discharge flow rate controller as a result of switching operations of both the pressure compensated valve and the load sensing valve.