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:
May. 27, 1986
Filed:
Jul. 16, 1984
Manfred Fortnagel, Korb, DE;
Daimler-Benz AG, , DE;
Abstract
The invention relates to a throttling-pintle nozzle for fuel injection in an internal-combustion engine, with a nozzle needle which lifts off from its needle seat under the pressure of the injected fuel counter to the direction of flow of the fuel. The throttling pintle of which is located within the spray hole in the closing position of the nozzle needle. To prevent an unduly sharp variation in the injection rate from occurring as a result of coking residues in the spray hole, the pintle is provided with a special flattened portion which is arranged obliquely relative to the center axis of the pintle, so that with an increasing stroke of the needle in the opening direction an increase in the passage cross-section represented by an oblique flattened portion takes place.