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:
Jun. 19, 1990
Filed:
Jun. 15, 1988
Seiji Suga, Atsugi, JP;
Tatsuyuki Matsuya, Fujisawa, JP;
Seinosuke Hara, Yokosuka, JP;
Hiromichi Ofuji, Yokohama, JP;
Takayuki Arai, Yokosuka, JP;
Takaharu Goto, Yokohama, JP;
Nissan Motor Co., Ltd., both of, JP;
Atsugi Motor Parts Co., Ltd., both of, JP;
Abstract
The pressure prevailing in a variable volume chamber which controls the compression ratio developed by a piston, is used control the movement of a valve which regulates the supply and draining of the chamber. During high load the high pressure is used to drain the chamber while under light load the lower pressure permits the chamber to be supplied with hydraulic fluid in a manner which tends to fill the same during induction phases and the like when the pressure in the cylinder is low.