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:
Mar. 27, 1990
Filed:
May. 15, 1989
Helmut Priesner, Steyr, AT;
Steyr-Daimler-Puch AG, Vienna, AT;
Abstract
A fuel injection valve for air-compressing internal combustion engines comprises a nozzle holder, a nozzle body and a pintle, which is operable by the application of fuel pressure against the force of a closing spring, which is accommodated in a spring chamber of the nozzle holder. The pintle cooperates with a damper, which comprises a fuel-filled damper chamber, which opens into a constricted passage. A separate damper piston is interposed between the pintle and the damper chamber and enters the damper chamber and is non-positively connected to the pintle. To provide an inexpensive and highly effective damper, either the damper chamber is formed in an adapter, which defines that end of the spring chamber of the nozzle holder which is adjacent to the pintle, the adapter contains the damper piston, which is used to transmit force between the closing spring and the pintle.