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:
Dec. 18, 2018
Filed:
Jul. 18, 2017
GM Global Technology Operations Llc, Detroit, MI (US);
Andy Bennett, Rochester Hills, MI (US);
Joel H. Pike, Haslett, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
In one or more embodiments, a pressure relief valve for a fluid pump has a valve head that has a recessed outlet-side surface that confronts a support end of a spring such that the valve head extends past the support end of the spring toward a pump outlet. The spring is biased to urge the valve head against a valve seat to a seated position. The spring is also configured to be compressed when fluid pressure at an inlet to the relief valve exceeds fluid pressure at the outlet by at least a predetermined amount such that the valve head is pushed away from the valve seat to an unseated position. A pressure relief valve may have multiple outlets at least some of which have unequal flow areas such that fluid pressure distribution across the flow area of the pressure relief valve cavity is nonsymmetrical.