Patent · US Expired

Fuel delivery device

US6092500A · kind A · utility

7Cited by

9References

7Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Kurt Frank · Schorndorf, DE
Detlef Classe · Nuremberg, DE
Albert Gerhard · Tamm, DE
Ulrich Projahn · Graus, ES

Key dates

Filing date	Nov 6, 1998
Grant date	Jul 25, 2000
Priority date	—
Expiry date	Nov 6, 2018

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2037/087
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A delivery device for fuel to an internal combustion engine, which includes a fuel reservoir. After the engine is shut off or in the event of an accident, there is the danger that the pressurized fuel present in the fuel reservoir will escape from the delivery device. A blocking device is provided on the fuel reservoir, which after the engine is shut off or after an accident, the blocking device engages with an actuation rod that is provided with detent teeth, by means of an electromagnetically actuated locking pin and thus prevents a force impingement of a compression spring on the movable wall of the fuel reservoir. By use of the blocking devices the pressure in the fuel line is completely reduced even after the escape of small fuel quantities. The delivery device is suited for mixture-compressing internal combustion engines with externally supplied ignition.

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