Patent · US Expired

Electrically controlled fuel injection system

US4222352A · kind A · utility

3Cited by

2References

20Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ulrich Drews · Schwieberdingen, DE
Peter Werner · Wiernsheim, DE
Helmut Moder · Stuttgart, DE
Adolf Kugelmann

Key dates

Filing date	Apr 19, 1976
Grant date	Sep 16, 1980
Priority date	—
Expiry date	Apr 19, 1996

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D41/182
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injection control circuit includes a monostable multivibrator for generating injection valve control pulses. The circuit includes a trigger sub-circuit which controls the switching characteristics of the monostable multivibrator in a well-defined manner which is immune to electrical noise and to voltage fluctuation in the supply lines of the vehicle.

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