Decoupling element for a fuel injection device

US9938947B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Jens Pohlmann · Bietigheim-Bissingen, DE
• Michael Fischer · Mühlacker, DE
• Andreas Glaser · Stuttgart, DE
• Markus Friedrich · Moosburg an der Isar, DE
• Martin Scheffel · Leinfelden, DE
• Stefan Woerz · Lambach, DE
• Martin Buehner · Backnang, DE
• Thomas Gerschwitz · Lambach, DE
• Anh-Tuan Hoang · Plymouth, US

Key dates

• Filing date: Nov 9, 2012
• Grant date: Apr 10, 2018
• Expiry date: Nov 9, 2032

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2200/858
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A decoupling element is described for a fuel injection device which is characterized in particular by a low-noise design. The fuel injection device includes at least one fuel injector, a receiving bore in a cylinder head for the fuel injector, and the decoupling element between a valve housing of the fuel injector and a wall of the receiving bore. The decoupling element is designed as a decoupling system having a spring ring and a conical washer. The fuel injection device is suitable for injecting fuel into a combustion chamber of a mixture-compressing spark-ignition internal combustion engine in particular.