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. 26, 2019
Filed:
Sep. 07, 2017
GM Global Technology Operations Llc, Detroit, MI (US);
Andy Bennett, Sr., Rochester Hills, MI (US);
Joel H. Pike, Haslett, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A pressure relief valve includes a valve housing having an inlet end with an inlet opening having a valve seat surface surrounding the inlet opening. The valve housing defines an outlet end with a plurality of outlet holes and a valve chamber disposed between the valve seat and the outlet end. One of the plurality of outlet holes has a smaller cross section than the other outlet holes. The valve chamber includes a plurality of radially protruding grooves extending radially beyond a base diameter. One of the plurality of radially protruding grooves has a groove cross section that is smaller than a groove cross section of the remaining grooves, which along with the smaller outlet hole cause a lateral pressure imbalance on the valve member so that the valve member tends to remain in contact with a side of the valve seat while permitting relief flow.