Patent · US Expired

Fuel injection system for combination with internal combustion engines, having a universally connectable input trigger stage

US4024843A · kind A · utility

0Cited by

1References

14Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Karl-Heinz Adler · Leonberg, DE
Ulrich Drews · Schwieberdingen, DE
Erwin Gloss · Ditzingen, DE
Adolf Kugelmann

Key dates

Filing date	Dec 2, 1975
Grant date	May 24, 1977
Priority date	—
Expiry date	Dec 2, 1995

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D41/365
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

To permit connection of the input trigger stage to a wide variety of signal sources, such as different types of ignition systems (transistorized ignitions, coil-type ignitions, mechanical breaker system ignitions, and the like), a voltage divider is connected across the supply circuit, and the input signal is applied to a dual collector transistor forming the trigger or threshold stage, one collector of the transistor being connected to the output of the trigger stage and the other being connected to a protective circuit controlling bypassing of input signals of excessive voltage, or energy of either polarity and thus protecting the dual collector transistor.

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