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. 22, 1981
Filed:
May. 12, 1980
Richard H Smith, Birmingham, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A compression operated injector for delivering fuel directly to the combustion chamber of an engine has a piston which responds to the pressure in the combustion chamber and cooperates with a stepped plunger in the injector to pressurize fuel in both a control chamber and in an injector pump chamber. The discharge of fuel from the injection pump chamber for injection into the combustion chamber is controlled by a pressure operated valve. A solenoid actuated valve is used to control the escape of fuel from the control chamber so as to permit the piston to effect the necessary pressurization of the fuel in the injection pump chamber whereby to initiate the start of fuel injection.