Patent · US Expired

Fuel injection device

US6752325B2 · kind B2 · utility

5Cited by

6References

6Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Martin Kropp · Ditzingen, DE
Hans-Christoph Magel · Pfullingen, DE
Wolfgang Otterbach · Stuttgart, DE

Key dates

Filing date	Dec 20, 2001
Grant date	Jun 22, 2004
Priority date	—
Expiry date	Dec 20, 2021

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M59/105
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An injection nozzle of a stroke-controlled fuel injection device has a control chamber for triggering a nozzle needle and also has a nozzle chamber connectable to a pressure booster. The communication between a differential chamber of the pressure booster and a leakage line and the communication between a control chamber and a leakage line are controllable with the aid of a common valve.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.