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:
Jun. 11, 2002
Filed:
Sep. 01, 2000
Gary P. Spanos, Lynchburg, VA (US);
Jeffrey A. Schultz, Pittsville, VA (US);
Schrader-Bridgeport International, Inc., Buffalo Grove, IL (US);
Abstract
A fuel injection system for an internal combustion engine includes a pressure spike attenuator that is installed between the pump and fuel rail inlet of the system. This pressure spike attenuator includes an expandable pressure vessel having a sidewall that is corrugated in cross-section to facilitate volumetric expansion of the pressure vessel. A solenoid valve includes a tapered needle that is moved between an opened and a closed position. In the opened position, the fuel pump, the pressure vessel, and the fuel rail are all in fluid communication with one another. In the closed position, the pressure vessel is isolated from both the fuel pump and the fuel rail, and the fuel rail is isolated from both the fuel pump and the pressure vessel.