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. 17, 2019
Filed:
Oct. 27, 2015
Robert Bosch Gmbh, Stuttgart, DE;
Andreas Rau, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to an injection nozzle () for fuels, comprising a nozzle body (), in which a pressure chamber () that can be filled with fuel under high pressure is formed, in which pressure chamber a piston-shaped nozzle needle () is arranged in such a way that the nozzle needle can be moved longitudinally. A sealing surface () is formed at one end of the nozzle needle () and an end face () is formed at the opposite end, wherein the sealing surface () interacts with a nozzle seat () in order to open and close at least one injection opening (). A control chamber () that can be filled with fuel under changing pressure is bounded by the end face () of the nozzle needle () such that a force can be applied to the end face () in the direction of the nozzle seat () by means of the hydraulic pressure. The nozzle needle () has an elastic longitudinal segment (), which has a longitudinal stiffness of less than 40,000 N/mm.