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:
Oct. 11, 1983
Filed:
May. 29, 1981
Arthur R Frelund, Okemos, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A fuel injection nozzle of the outward opening poppet valve type includes a closure member reciprocable in the axial bore of a spray tip so as to control fuel flow therefrom and to form therewith an annular discharge spray orifice. The closure member includes a valve head with a pintle extending therefrom, the pintle having an annular groove therein that is located relative to the free end of the pintle so that during opening movement of the closure member this groove will not extend outward from the spray tip. The groove as thus located is operative to effect turbulent flow of the fuel being discharged and to act as a thermal barrier and is thus operative to substantially eliminate carbon build-up in the injection nozzle.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile