Patent · US Expired

Injection pump with electronically controlled full-load stop

US4243004A · kind A · utility

12Cited by

1References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ernst Ritter · Stuttgart, DE
Werner Faupel · Wyoming, US
Karsten Hummel · Freising, DE
Johannes Locher · Stuttgart, DE

Key dates

Filing date	Jan 24, 1979
Grant date	Jan 6, 1981
Priority date	—
Expiry date	Jan 24, 1999

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M59/447
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An injection pump with a full-load stop, preferably electronically controlled, which is adjustable against the force of a prestressed spring as a result of the control exerted by an electromagnet with a controllable stroke and which, when there is no current in the magnet, is displaceable by means of the spring into its terminal position which determines a reduced full-load quantity. Thus the maximum injection quantity is reduced in accordance with operating conditions and with the operational status of the engine; by this means, environmentally safer and smoother engine operation is possible at all operating conditions. The injection pump is also capable of continuing to function if the electrical or electronic parts fail.

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