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. 25, 1996
Filed:
Feb. 13, 1995
Ulrich Augustin, Kernen, DE;
Hermann Hiereth, Esslingen, DE;
Mercedes-Benz A.G., Stuttgart, DE;
Abstract
In a fuel injection system for an internal combustion engine with solenoid valve controlled fuel injection nozzles receiving fuel from a common high pressure fuel supply line to which fuel is supplied via a high-pressure line including a check valve by a mechanically operated high pressure piston pump which has a piston disposed in a cylinder to which fuel is fed by a low pressure fuel supply line, a control line extends between the high-pressure line upstream of the check valve and the fuel supply line and includes a solenoid valve to permit fuel discharge from the pump back to the fuel supply line and a bypass line extends between the high-pressure line downstream of the check valve and the cylinder to provide communication with the fuel supply line through passages in the piston and the working space of the piston when the piston is in its inserted position and the solenoid is open to permit the release of pressurized fuel from the common high-pressure fuel supply line to the low pressure fuel supply line.