GB1481171A - Fuel injection systems for diesel engines - Google Patents

Fuel injection systems for diesel engines

Info

Publication number
GB1481171A
GB1481171A GB4679273A GB4679273A GB1481171A GB 1481171 A GB1481171 A GB 1481171A GB 4679273 A GB4679273 A GB 4679273A GB 4679273 A GB4679273 A GB 4679273A GB 1481171 A GB1481171 A GB 1481171A
Authority
GB
United Kingdom
Prior art keywords
transistor
current
coil
circuit
actuator
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
GB4679273A
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.)
CAV Ltd
Original Assignee
CAV Ltd
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 by CAV Ltd filed Critical CAV Ltd
Priority to GB4679273A priority Critical patent/GB1481171A/en
Priority to IT5336174A priority patent/IT1021698B/en
Priority to FR7433510A priority patent/FR2246740B1/fr
Priority to JP11395274A priority patent/JPS5064632A/ja
Publication of GB1481171A publication Critical patent/GB1481171A/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
    • F02D41/38—Controlling fuel injection of the high pressure type
    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D2041/224—Diagnosis of the fuel system
    • F02D2041/226—Fail safe control for fuel injection pump

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)

Abstract

1481171 Electric protective systems CAV Ltd 26 Sept 1974 [6 Oct 1973] 46792/73 Heading H2K Signals from an engine speed responsive transducer, an actuator position responsive transducer and a demand representing means (accelerator pedal) are fed to a governor which controls the actuator supply circuit for controlling a fuel injection pump of a diesel engine and relay means responsive to the current in the actuator supply circuit interrupts the circuit when the current therein exceeds a predetermined value. The governor (Fig. 1, not shown) provides a signal to the base of a transistor 43 and the current in the actuator coil 14 is controlled thereby. If excessive current flows in the series circuit of a resistor 44, coil 14 and transistor 43, a transistor 47 carries increased current and a Zener diode 51 breaks down to make a transistor 39 conduct and deprive a transistor 37 of its base drive and thus the main circuit through a relay coil 35 is interrupted so that relay contacts 34 open to disconnect the actuator coil circuit 44, 14, 43. Whilst a manual switch 36 remains closed the base drive of transistor 39 is sufficiently maintained by a current through coil 35 and resistor 54 so that transistor 37 does not conduct.
GB4679273A 1973-10-06 1973-10-06 Fuel injection systems for diesel engines Expired GB1481171A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB4679273A GB1481171A (en) 1973-10-06 1973-10-06 Fuel injection systems for diesel engines
IT5336174A IT1021698B (en) 1973-10-06 1974-10-04 FUEL INJECTION SYSTEM FOR DIESEL ENGINES
FR7433510A FR2246740B1 (en) 1973-10-06 1974-10-04
JP11395274A JPS5064632A (en) 1973-10-06 1974-10-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4679273A GB1481171A (en) 1973-10-06 1973-10-06 Fuel injection systems for diesel engines

Publications (1)

Publication Number Publication Date
GB1481171A true GB1481171A (en) 1977-07-27

Family

ID=10442618

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4679273A Expired GB1481171A (en) 1973-10-06 1973-10-06 Fuel injection systems for diesel engines

Country Status (4)

Country Link
JP (1) JPS5064632A (en)
FR (1) FR2246740B1 (en)
GB (1) GB1481171A (en)
IT (1) IT1021698B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214370A (en) * 1987-12-25 1989-08-31 Aisin Aw Co Electronic cut off controller for automatic transmission

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827073Y2 (en) * 1978-06-29 1983-06-11 株式会社ボッシュオートモーティブ システム Overdrive current prevention circuit in electronic governor
GB8311917D0 (en) * 1983-04-30 1983-06-02 Lucas Ind Plc Electronic control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214370A (en) * 1987-12-25 1989-08-31 Aisin Aw Co Electronic cut off controller for automatic transmission
GB2214370B (en) * 1987-12-25 1991-12-18 Aisin Aw Co Electronic controller for automatic transmission

Also Published As

Publication number Publication date
FR2246740B1 (en) 1980-03-21
FR2246740A1 (en) 1975-05-02
IT1021698B (en) 1978-02-20
JPS5064632A (en) 1975-05-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee