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:
Nov. 17, 1998
Filed:
Dec. 13, 1996
Margaret C Novacek, South Lyon, MI (US);
Gregg T Black, Livonia, MI (US);
Chrysler Corporation, Auburn Hills, MI (US);
Abstract
A fuel injection system for injecting gasoline or other fuel directly into the combustion chambers of an internal combustion engine including a fuel pump with a plurality of fuel pumping pistons mounted within cylinders formed in a fixed barrel member. Each of the pistons internally contains an improved inlet valving assembly mounted wholly within a bore axially extending in the piston. The valving assembly provides a one-way fluid inletting to the pumping chamber by slight movement of a low mass valving member away from an annular seating surface formed about an inlet passage. Unlike rotary sliding type valves, the subject valve does not move rapidly through and agitate fuel and thereby does not generate any significant degree of undesirable fuel heating thus preventing undesirable fuel vaporization which is detrimental to pumping action of fluid.