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:
Dec. 29, 1987
Filed:
Feb. 25, 1986
Steyr-Daimler-Puch AG, Vienna, AT;
Abstract
A fuel injection nozzle for internal combustion engines comprises a nozzle needle (2) guided in a nozzle body (1) and loaded by a helical pressure spring (4). The nozzle needle (2) moves under the pressure of the fuel out of its closure position onto a stop (6) which in turn is loaded by a further but stronger helical pressure spring (7) and limitedly displaceable against the force thereof. The stronger helical pressure spring (7) surrounds the weaker helical pressure spring (4) and the fuel flows through a bore (5) parallel to the spring axis. To achieve a reduction of the external diameter of the injection nozzle in the region of the two springs (4, 7) the latter arranged eccentrically rather than coaxially. Furthermore, between them a preferably likewise eccentric bush (8) is provided through which in the region of its greatest wall thickness the bore (5) for the inflowing fuel extends.