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Electrically controlled fuel injection system for an externally ignited internal combustion engine. Elektrisch gesteuerte Kraftstoffeinspritzanlage fuer eine fremdgezuendete Brennkraftmaschine

Abstract

The purpose of the invention is to create an electrically controlled fuel injection system with a pulse shaping stage, which can be manufactured by integrated circuit technique and which is protected against faulty initiation, which could be caused by interference from the ignition system. According to the invention the problem is solved by the pulse shaping stage containing a monostable multivibrator set to a predetermined period for changeover, preferably about 4 millisecs, which includes a first transistor blocked in the de-energised state and a second transistor conducting in the de-energised state, whose base is connected via a coupling capacity determining the period of changeover to the collector of the first transistor, and which also has a charging transistor. This is connected to the collector of the first transistor and its collector is connected via a resistor to the DC supply wire.
Publication Date:
Dec 04, 1980
Product Type:
Patent
Report Number:
DE 2265225; C
Reference Number:
FRG-84-07152; EDB-85-123776
Resource Relation:
Patent File Date: Filed date 31 Aug 1972; Other Information: Supplement to P 2054435.8; separation from P 2242795.8
Subject:
33 ADVANCED PROPULSION SYSTEMS; 42 ENGINEERING; FUEL INJECTION SYSTEMS; COMPUTERIZED CONTROL SYSTEMS; INTERNAL COMBUSTION ENGINES; ELECTRONIC CIRCUITS; MICROPROCESSORS; COMPUTERS; CONTROL SYSTEMS; ENGINES; FUEL SYSTEMS; HEAT ENGINES; MICROELECTRONIC CIRCUITS; 330100* - Internal Combustion Engines; 420800 - Engineering- Electronic Circuits & Devices- (-1989)
OSTI ID:
5527430
Country of Origin:
Germany
Language:
German
Availability:
Deutsches Patentamt, Muenchen, Germany, F.R.
Submitting Site:
DE
Size:
Pages: 7
Announcement Date:

Citation Formats

Busse, W, Drews, U, and Werner, P. Electrically controlled fuel injection system for an externally ignited internal combustion engine. Elektrisch gesteuerte Kraftstoffeinspritzanlage fuer eine fremdgezuendete Brennkraftmaschine. Germany: N. p., 1980. Web.
Busse, W, Drews, U, & Werner, P. Electrically controlled fuel injection system for an externally ignited internal combustion engine. Elektrisch gesteuerte Kraftstoffeinspritzanlage fuer eine fremdgezuendete Brennkraftmaschine. Germany.
Busse, W, Drews, U, and Werner, P. 1980. "Electrically controlled fuel injection system for an externally ignited internal combustion engine. Elektrisch gesteuerte Kraftstoffeinspritzanlage fuer eine fremdgezuendete Brennkraftmaschine." Germany.
@misc{etde_5527430,
title = {Electrically controlled fuel injection system for an externally ignited internal combustion engine. Elektrisch gesteuerte Kraftstoffeinspritzanlage fuer eine fremdgezuendete Brennkraftmaschine}
author = {Busse, W, Drews, U, and Werner, P}
abstractNote = {The purpose of the invention is to create an electrically controlled fuel injection system with a pulse shaping stage, which can be manufactured by integrated circuit technique and which is protected against faulty initiation, which could be caused by interference from the ignition system. According to the invention the problem is solved by the pulse shaping stage containing a monostable multivibrator set to a predetermined period for changeover, preferably about 4 millisecs, which includes a first transistor blocked in the de-energised state and a second transistor conducting in the de-energised state, whose base is connected via a coupling capacity determining the period of changeover to the collector of the first transistor, and which also has a charging transistor. This is connected to the collector of the first transistor and its collector is connected via a resistor to the DC supply wire.}
place = {Germany}
year = {1980}
month = {Dec}
}