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. 02, 2004
Filed:
Sep. 30, 2002
Gunter Gürich, Aachen, DE;
Hermann Joseph Laumen, Heinsberg, DE;
Karl Joachim Schmücker, Eynatten, BE;
FEV Motorentechnik GmbH, Aachen, DE;
Abstract
The invention relates to a fuel injection device for a reciprocating internal combustion engine, comprising a nozzle part ( ) with an injection nozzle ( ), said nozzle part having a pressure chamber ( ) in which a nozzle needle ( ) that closes the injection nozzle ( ) is guided. Said nozzle needle can be moved into the opening position when subjected to pressure by the fuel to be injected. The pressure chamber ( ) is connected to a control part ( ) by a connecting channel ( ), this control part having a valve chamber ( ) into which the connecting channel ( ) and a high pressure channel ( ) that is connected to a fuel supply ( ) open, and in which a valve body ( ) is guided. Said valve body ( ) acts as a piston system and is held in the closing position by a valve spring and a valve seat ( ). The nozzle part also comprises an actuator part ( ) which is functionally connected to the valve body ( ) and which when activated, moves said valve body in the opening direction and releases the through-flow from the high pressure channel ( ) into the connecting channel ( ).