Patent · US Expired

Method and device for shaping the injection pressure course in injectors

US6688278B2 · kind B2 · utility

2Cited by

8References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Nestor Rodriguez-Amaya · Stuttgart, DE
Roger Potschin · Brackenheim, DE
Ulrich Projahn · Graus, ES

Key dates

Filing date	Mar 27, 2002
Grant date	Feb 10, 2004
Priority date	—
Expiry date	May 3, 2022

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M59/366
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a method for shaping the injection pressure course (27) in injectors, which are used for instance in injection devices of injection systems in motor vehicles. The injection device includes a pump part (1) and an injection nozzle part (2). The pump part (1) and injection nozzle part (2) communicate with one another via a high-pressure line (3). Control valves (8, 10) which are triggered by means of an actuator (9) are contained in the pump part (1). By the triggering by means of the actuator (9), injection parameters during the preinjection phase (28), pressure buildup phase (29) and main injection phase (30) are determined.

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