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. 16, 1999
Filed:
Feb. 18, 1998
Ulrich Augustin, Kernen, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
In a fuel injection system for a multi-cylinder internal combustion engine with magnetic valve controlled direct injection fuel injectors of which each comprises a housing consisting of several parts, one part having an injection nozzle with a spring loaded nozzle needle and another part including a control piston with a valve structure having an integral valve seat for controlling high pressure fuel admission to a fuel supply passage extending through the housing to the injection nozzle, a control chamber is formed at the other end of the control piston and is in communication with the high pressure fuel supply, and a magnetic valve arranged adjacent the control chamber controls communication of the control chamber with a drain line for releasing pressurized fuel from the control chamber to permit unseating of the control piston so as to establish communication between the pressurized fuel supply and the injection nozzle past a lug extending from the control piston into a fuel admission bore.