GB1266974A - - Google Patents

Info

Publication number
GB1266974A
GB1266974A GB1266974DA GB1266974A GB 1266974 A GB1266974 A GB 1266974A GB 1266974D A GB1266974D A GB 1266974DA GB 1266974 A GB1266974 A GB 1266974A
Authority
GB
United Kingdom
Prior art keywords
circuits
engine
outputs
fuel injection
pulses
Prior art date
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
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.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1266974A publication Critical patent/GB1266974A/en
Expired legal-status Critical Current

Links

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
    • F02D41/36—Controlling fuel injection of the low pressure type with means for controlling distribution
    • F02D41/365—Controlling fuel injection of the low pressure type with means for controlling distribution with means for controlling timing and distribution

Abstract

1,266,974. Fuel injection systems. TOYOTA JIDOSHA KOGYO K.K. Aug.25, 1969 [Aug.28, 1968], No.42187/69. Heading G1N. In an I.C. engine fuel injection control system pulses are applied to solenoid valves, controlling the fuel injection nozzles, in synchronism with rotation of the engine. A number of switches 2a - 2d are provided corresponding to the number of cylinders, each switch being connected to a respective pulse shaping circuit 3a - 3d Fig. 2 (not shown) the outputs of two respective shaping circuits being connected to an adding circuit 4 and a sawtooth generator 5. The outputs of the two generators 5 are applied to respective comparison circuits 6 which each compare the generator output with a voltage resprentative of an engine operating parameter, e.g. intake manifold pressure, to produce pulses of duration corresponding to the engine operating parameter. These pulses are applied to the solenoid valves 9a - 9d, via drive circuits 8a - 8d, Fig.4 (not shown), in a sequence determined by bistable circuits 7, Fig.3 (not shown), which are triggered by the outputs of the shaping circuits to operate the drive circuits. The switches may be magnetically operated or cam operated by a member 12 mounted on a shaft 11 rotated at the same speed as the engine crankshaft.
GB1266974D 1968-08-28 1969-08-25 Expired GB1266974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6168568 1968-08-28

Publications (1)

Publication Number Publication Date
GB1266974A true GB1266974A (en) 1972-03-15

Family

ID=13178349

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1266974D Expired GB1266974A (en) 1968-08-28 1969-08-25

Country Status (3)

Country Link
US (1) US3612009A (en)
DE (1) DE1943180B2 (en)
GB (1) GB1266974A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3832981A (en) * 1968-08-07 1974-09-03 Toyota Motor Co Ltd Fuel injection control system
US3756204A (en) * 1969-06-16 1973-09-04 Hitachi Ltd Fuel injection system for internal combustion engines
DE2061242C3 (en) * 1969-12-12 1974-03-07 Hitachi Ltd., Tokio Fuel injection device for internal combustion engines
DE2021276A1 (en) * 1970-04-30 1971-11-11 Bosch Gmbh Robert Pulse generator for controlling the valves of an internal combustion engine
US3710766A (en) * 1970-05-14 1973-01-16 Acf Ind Inc Electronic fuel injection system
JPS5414688B1 (en) * 1971-06-17 1979-06-08
US3893432A (en) * 1971-12-30 1975-07-08 Fairchild Camera Instr Co Electronic control system
FR2228158B1 (en) * 1973-05-04 1977-08-19 Sibe
JPS5164136A (en) * 1974-11-29 1976-06-03 Nissan Motor Kikakino denjibenseigyosochi
GB1592762A (en) * 1976-09-21 1981-07-08 Lucas Industries Ltd Internal combustion engine fuel injection control
JPS53113933A (en) * 1977-03-15 1978-10-04 Toyota Motor Corp Idle speed control device for engine
US4372273A (en) * 1981-04-01 1983-02-08 The Bendix Corporation Quadrature trigger system for sequential fuel injection

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2867200A (en) * 1957-03-20 1959-01-06 Bendix Aviat Corp Auxiliary control means for pulse producing circuit
FR1485621A (en) * 1966-04-13 1967-06-23 Enhancements to electronic injector devices and injectors used with these devices
DE1526505A1 (en) * 1966-11-11 1970-04-16 Bosch Gmbh Robert Fuel injection system

Also Published As

Publication number Publication date
DE1943180A1 (en) 1970-03-05
US3612009A (en) 1971-10-12
DE1943180B2 (en) 1972-10-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)