GB1273107A - Improvements in and relating to fuel injection governors for diesel internal combustion engines and particularly to electrical protection circuits for such governors - Google Patents

Improvements in and relating to fuel injection governors for diesel internal combustion engines and particularly to electrical protection circuits for such governors

Info

Publication number
GB1273107A
GB1273107A GB58844/70A GB5884470A GB1273107A GB 1273107 A GB1273107 A GB 1273107A GB 58844/70 A GB58844/70 A GB 58844/70A GB 5884470 A GB5884470 A GB 5884470A GB 1273107 A GB1273107 A GB 1273107A
Authority
GB
United Kingdom
Prior art keywords
fuel
voltage
engine speed
engine
triggered
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
GB58844/70A
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.)
Filing date
Publication date
Priority claimed from DE19691962573 external-priority patent/DE1962573C3/en
Priority claimed from DE19702042914 external-priority patent/DE2042914C3/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1273107A publication Critical patent/GB1273107A/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
    • F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
    • F02D17/04—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling rendering engines inoperative or idling, e.g. caused by abnormal conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
    • F02D31/001—Electric control of rotation speed
    • F02D31/007—Electric control of rotation speed controlling fuel supply
    • F02D31/009—Electric control of rotation speed controlling fuel supply for maximum speed control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2710/00—Control of valve gear, speed or power
    • F01L2710/006—Safety devices therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

1,273,107. Fuel injection system. ROBERT BOSCH G.m.b.H. Dec. 11, 1970 [Dec. 13, 1969; Aug.29, 1970], No.58844/70. Heading G1N. In a Diesel I.C. engine fuel injection control system, a switching device 25 is provided for controlling a fuel-flow adjusting unit 12 to give an excess quantity of fuel during starting, an overspeed switching device is provided to cut-off fuel supply when overspeed is sensed, and an auxiliary rectifier 42 driven by pulses of frequency dependent upon engine speed to produce a negative D.C. voltage proportional to engine speed, is provided, the device 28 being triggered to cut-off excess fuel by a signal comprising the combination of the negative D.C. voltage and a positive D.C. voltage inversely proportional to engine speed, and the device 26 being triggered upon overspeed by a signal comprising the combination of the negative D.C. voltage and a positive voltage produced above a pre-set frequency by a frequency rectifier 49 which is driven by the speed dependent pulses. As shown, under normal operating conditions the fuel-flow adjusting device 12 is controlled by a signal produced by the output of a function generator 18 in dependence upon signals representing the throttle position 19 and engine speed, the output being modified by the signal from a position transducer 13. The speed signal is derived from a transducer 14 which provided pulses of frequency proportional to engine speed, the pulses being applied to an amplifier 15 and a switching device 16 whose output is applied to a filter 17 to provide the positive D.C. voltage inversely proportional to engine speed. When the circuitry is switched on devices 25 and 26 are operated to energize their relays S, œ which cause their switches s, and ³1 and ³2 to change over, a lamp 62 then being lit to indicate that overspeed device 26 is functioning. When the engine is started, the relay œ is de-energized but the relay S is maintained energized to thereby connected the terminal 61 of the fuel device 12 to earth and apply the full operating voltage to device 12 to provide maximum fuel injection. When the engine speed reaches a pre-set level due to excess fuel, the device 25 is triggered to de-energize relay S so that terminals 60, 61 are connected between +U b and the output of generator 18. When a pre-set engine speed is exceeded, the device 26 is triggered to energize relay œ and cut-off terminals 60, 61 from the voltage. In a modification, Fig. 2 (not shown), the speed value at which the device 26 is triggered is made variable in dependence upon engine loading such that fuel is not cut-off when the engine acts as a brake.
GB58844/70A 1969-12-13 1970-12-11 Improvements in and relating to fuel injection governors for diesel internal combustion engines and particularly to electrical protection circuits for such governors Expired GB1273107A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19691962573 DE1962573C3 (en) 1969-12-13 1969-12-13 Safety circuit for an overspeed protection and a starting excess amount of fuel with electronic control of a diesel internal combustion engine
DE19702042914 DE2042914C3 (en) 1970-08-29 1970-08-29 Safety circuit for overspeed protection and a starting excess amount of fuel with a load-dependent shiftable response threshold for electronic control of a diesel internal combustion engine

Publications (1)

Publication Number Publication Date
GB1273107A true GB1273107A (en) 1972-05-03

Family

ID=25758237

Family Applications (1)

Application Number Title Priority Date Filing Date
GB58844/70A Expired GB1273107A (en) 1969-12-13 1970-12-11 Improvements in and relating to fuel injection governors for diesel internal combustion engines and particularly to electrical protection circuits for such governors

Country Status (6)

Country Link
US (1) US3693603A (en)
CH (1) CH518443A (en)
FR (1) FR2073655A5 (en)
GB (1) GB1273107A (en)
NL (1) NL7018127A (en)
SE (1) SE349845B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973537A (en) * 1971-12-03 1976-08-10 C.A.V. Limited Fuel supply systems for internal combustion engines
GB1416861A (en) * 1971-12-03 1975-12-10 Cav Ltd Control systems for internal combustion engines
GB1429306A (en) * 1972-04-04 1976-03-24 Cav Ltd Control systems for fuel systems for engines
GB1429293A (en) * 1972-04-04 1976-03-24 Cav Ltd Control systems for fuel systems for engines
GB1460013A (en) * 1973-01-06 1976-12-31 Cav Ltd Control systems for fuel systems for internal combustion engines
US4051818A (en) * 1974-11-23 1977-10-04 Volkswagenwerk Aktiengesellschaft Device for obtaining signals for the control unit of an electronic fuel injection system
US4096830A (en) * 1975-11-06 1978-06-27 Allied Chemical Corporation Control system for electrically energized engine fuel
DE2710989A1 (en) * 1977-03-14 1978-09-21 Bosch Gmbh Robert DEVICE FOR THE SAFE SWITCHING OF ACTUATORS
US4232647A (en) * 1978-11-13 1980-11-11 The Bendix Corporation Control circuit for diesel injection system
US4520780A (en) * 1983-12-22 1985-06-04 Toyota Jidosha Kabushiki Kaisha Diesel fuel injection pump with fuel injection cutoff upon detection of excessive actual fuel combustion time
DE3629265A1 (en) * 1986-08-28 1988-03-10 Vdo Schindling ARRANGEMENT WITH AN INJECTION PUMP
DE3800177A1 (en) * 1988-01-07 1989-07-20 Bosch Gmbh Robert CONTROL CIRCUIT AND METHOD FOR CONTROLLING THE SPEED OF AN ELECTRIC FUEL PUMP FOR INTERNAL COMBUSTION ENGINES WITH FUEL INJECTION
JPH07116989B2 (en) * 1988-11-26 1995-12-18 株式会社ウオルブローファーイースト Starting fuel supply system for engine equipped with diaphragm type carburetor
WO2001061172A2 (en) * 2000-02-21 2001-08-23 Deon Van Tonder Governor for a motor vehicle engine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499706A (en) * 1948-04-09 1950-03-07 Patrick C Ward Injection pump
US2984232A (en) * 1959-03-26 1961-05-16 Borg Warner Fuel injection control
US3089475A (en) * 1959-10-10 1963-05-14 Daimler Benz Ag Starting mechanism for diesel engine with incandescent heating means
US3332406A (en) * 1965-08-24 1967-07-25 Gen Motors Corp Electronic speed control system
DE1264142B (en) * 1966-05-20 1968-03-21 Bosch Gmbh Robert Diesel engine with an actuator for adjusting the amount of fuel and an adjustment regulator
DE1261354B (en) * 1966-05-20 1968-02-15 Bosch Gmbh Robert Diesel engine with an actuator for adjusting the amount of fuel and a regulator
US3525017A (en) * 1968-01-08 1970-08-18 Ambac Ind Electric governor apparatus
US3548792A (en) * 1969-02-11 1970-12-22 Judson G Palmer Control apparatus for internal-combustion engines
US3573482A (en) * 1969-07-10 1971-04-06 Ford Motor Co Electric fuel pump control circuit

Also Published As

Publication number Publication date
NL7018127A (en) 1971-06-15
FR2073655A5 (en) 1971-10-01
CH518443A (en) 1972-01-31
US3693603A (en) 1972-09-26
SE349845B (en) 1972-10-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee