GB1262249A - Creation of Inventions and Patents with Artificial Intelligence

GB1262249A – Improvements in fuel injection systems
– Google Patents

GB1262249A – Improvements in fuel injection systems
– Google Patents
Improvements in fuel injection systems

Info

Publication number
GB1262249A

GB1262249A
GB42107/70A
GB4210770A
GB1262249A
GB 1262249 A
GB1262249 A
GB 1262249A
GB 42107/70 A
GB42107/70 A
GB 42107/70A
GB 4210770 A
GB4210770 A
GB 4210770A
GB 1262249 A
GB1262249 A
GB 1262249A
Authority
GB
United Kingdom
Prior art keywords
injection
voltage
injection pulse
discharged
capacitor
Prior art date
1969-09-04
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Application number
GB42107/70A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Robert Bosch GmbH

Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1969-09-04
Filing date
1970-09-03
Publication date
1972-02-02

1970-09-03
Application filed by Robert Bosch GmbH
filed
Critical
Robert Bosch GmbH

1972-02-02
Publication of GB1262249A
publication
Critical
patent/GB1262249A/en

Status
Expired
legal-status
Critical
Current

Links

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Global Dossier

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Classifications

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

F02D—CONTROLLING COMBUSTION ENGINES

F02D41/00—Electrical control of supply of combustible mixture or its constituents

F02D41/30—Controlling fuel injection

F02D41/32—Controlling fuel injection of the low pressure type

Abstract

1,262,249. Transistor blocking oscillators and waveform generators. ROBERT BOSCH G.m.b.H. 3 Sept., 1970 [4 Sept., 1969], No. 42107/70. Heading H3T. [Also in Division G1] In an I.C. engine fuel injection control system the relaxation period of a monostable multivibrator 12, which determines injection duration, is determined by the intake manifold pressure, via transformer 15, and in dependence upon engine speed by a control voltage, Fig. 2, which is triggered at the end of each injection pulse produced by the multivibrator 12. As shown, at the end of each injection pulse, i.e. t = 0 in Fig. 2, a capacitor C 4 , which provides the voltage Us applied to point H of multivibrator 12, is discharged, and is then successively charged at instants t 1 , t 2 and t 3 via respective charging sources R 8 , D 2 ; T 3 , R 11 R 13 , D 4 ; and T 4 , R 16 , R 18 , D 7 . The value of the voltage Us attained by C 4 at the end of the next injection pulse (which cause C 4 to be discharged at t=t 4 ) then determines the duration of the succeeding injection pulse. Thus as the engine speeds up, the frequency of injection pulses increases and so the value attained by the voltage on C 4 at the end of each injection pulse varies along the curve of Fig. 2 and so varies injection duration. In a modification, Fig. 3 (not shown), a second storage capacitor C 5 is provided in parallel with the capacitor C 4 in such a manner that the control voltage Us, Fig. 4 (not shown), is determined by the capacitor having the more positive voltage at any instant. In an alternative embodiment, Fig. 5 (not shown), a single storage capacitor C 6 , after being discharged at the end of each injection pulse, is charged by a first charging source, discharged, and then charged once or a successive number of times by a second or a successive number of different charging sources, to provide a control voltage Us, Fig. 6 (not shown), which increases and decreases.

GB42107/70A
1969-09-04
1970-09-03
Improvements in fuel injection systems

Expired

GB1262249A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

DE19691944878

DE1944878A1
(en)

1969-09-04
1969-09-04

Control device for a gasoline injection system with electronic, speed-dependent injection duration correction

Publications (1)

Publication Number
Publication Date

GB1262249A
true

GB1262249A
(en)

1972-02-02

Family
ID=5744604
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB42107/70A
Expired

GB1262249A
(en)

1969-09-04
1970-09-03
Improvements in fuel injection systems

Country Status (5)

Country
Link

US
(1)

US3620196A
(en)

CH
(1)

CH513332A
(en)

DE
(1)

DE1944878A1
(en)

FR
(1)

FR2030872A5
(en)

GB
(1)

GB1262249A
(en)

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2146456A
(en)

1983-07-11
1985-04-17
Figueiredo Nuno R M
Method and arrangement for controlling the combustion process in an internal combustion engine

Families Citing this family (12)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

AT309904B
(en)

1970-03-28
1973-09-10
Bosch Gmbh Robert

Control device for operating an injection system of an internal combustion engine comprising at least one electromagnetic injection valve

FR2102820A5
(en)

1970-08-24
1972-04-07
Sopromi Soc Proc Modern Inject

US3732852A
(en)

1971-07-01
1973-05-15
Gen Motors Corp
Electronic fuel injection system having speed enrichment

US3786789A
(en)

1971-11-15
1974-01-22
Gen Motors Corp
Electronic fuel injection system having coarse and fine speed compensation

US4084562A
(en)

1972-08-08
1978-04-18
Robert Bosch Gmbh
Fuel metering device

DE2244781C3
(en)

1972-09-13
1979-03-22
Robert Bosch Gmbh, 7000 Stuttgart

Ignition system for internal combustion engines

USRE29862E
(en)

1972-09-13
1978-12-19
Robert Bosch Gmbh
Ignition system dependent upon engine speed

FR2235278B1
(en)

1973-06-27
1980-03-14
Sopromi Soc Proc Modern Inject

DE2445317C3
(en)

1974-09-23
1979-09-13
Robert Bosch Gmbh, 7000 Stuttgart

Electric fuel injection system for internal combustion engines with control by the amount of intake air and with a device for preventing speed fluctuations

DE2605059C2
(en)

1976-02-10
1984-11-22
Robert Bosch Gmbh, 7000 Stuttgart

Fuel injection system for an internal combustion engine

US4196702A
(en)

1978-08-17
1980-04-08
General Motors Corporation
Short duration fuel pulse accumulator for engine fuel injection

US4283762A
(en)

1979-10-09
1981-08-11
Ford Motor Company
Analog computer circuit for controlling a fuel injection system during engine cranking

Family Cites Families (5)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE1109952B
(en)

1956-10-26
1961-06-29
Bosch Gmbh Robert

Injection system for internal combustion engines

DE1072428B
(en)

1956-11-16
1959-12-31
Bendix Aviation Corporation New York N Y (V St A)

urtis A Hartman Elmira N Y (V St A) I Procedure for the workshop setting of electromagnetically actuated injection valves intended for internal combustion engines

DE1277627B
(en)

1966-08-24
1968-09-12
Bosch Gmbh Robert

Electronic control device for the manifold injection system of an internal combustion engine

DE1576289B2
(en)

1967-10-21
1971-08-19
Robert Bosch Gmbh, 7000 Stuttgart

CONTROL DEVICE FOR OPERATING THE INJECTION SYSTEM OF AN COMBUSTION ENGINE

DE1751410A1
(en)

1968-05-24
1971-07-01
Bosch Gmbh Robert

Temperature-dependent switching device for an electronically controlled fuel injection device

1969

1969-09-04
DE
DE19691944878
patent/DE1944878A1/en
active
Pending

1969-12-16
FR
FR6943560A
patent/FR2030872A5/fr
not_active
Expired

1970

1970-08-17
CH
CH1227470A
patent/CH513332A/en
not_active
IP Right Cessation

1970-08-28
US
US67851A
patent/US3620196A/en
not_active
Expired – Lifetime

1970-09-03
GB
GB42107/70A
patent/GB1262249A/en
not_active
Expired

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2146456A
(en)

1983-07-11
1985-04-17
Figueiredo Nuno R M
Method and arrangement for controlling the combustion process in an internal combustion engine

Also Published As

Publication number
Publication date

FR2030872A5
(en)

1970-11-13

DE1944878A1
(en)

1971-03-11

US3620196A
(en)

1971-11-16

CH513332A
(en)

1971-09-30

Contact information