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:
Apr. 25, 2000
Filed:
Oct. 16, 1998
Siegfried Heer, Kirchdorf/Krems, AT;
TCG Unitech Aktiengesellschaft, Kirchdorf/Krems, AU;
Abstract
The present invention relates to a pressure control valve for regulating the oil pressure in an oil supply system preferably of an internal combustion engine, with a first working chamber which is in connection with an oil line, with a second working chamber which is in connection with an oil supply line, and with a control slide valve which is substantially movable by the oil pressure in the first working chamber in order to release a throttling aperture on exceeding a first predetermined oil pressure through which oil is released from the second working chamber to a recirculation system. A constructional simplification is achieved in such a way that the control slide valve is provided with a control element which is movable by the oil pressure in the second working chamber relative to a main body of the control slide valve and which on exceeding a second predetermined oil pressure in the second working chamber will release the throttling opening through which oil from the second working chamber is released to the recirculation system.