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GB1429771A - Control systems for fuel systems for engines - Google Patents

Control systems for fuel systems for engines

Info

Publication number
GB1429771A
GB1429771A GB1534172A GB1534172A GB1429771A GB 1429771 A GB1429771 A GB 1429771A GB 1534172 A GB1534172 A GB 1534172A GB 1534172 A GB1534172 A GB 1534172A GB 1429771 A GB1429771 A GB 1429771A
Authority
GB
United Kingdom
Prior art keywords
input
diode pump
signal
output
frequency
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
GB1534172A
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 GB1534172A priority Critical patent/GB1429771A/en
Priority to AR247389A priority patent/AR207103A1/en
Priority to ZA732208A priority patent/ZA732208B/en
Priority to IT49186/73A priority patent/IT982933B/en
Priority to CA167,841A priority patent/CA991725A/en
Priority to BR242473A priority patent/BR7302424D0/en
Priority to ES413339A priority patent/ES413339A1/en
Priority to DE2316817A priority patent/DE2316817A1/en
Priority to FR7312086A priority patent/FR2179080B1/fr
Priority to US347729A priority patent/US3889648A/en
Priority to IN772/CAL/73A priority patent/IN140470B/en
Priority to JP48038595A priority patent/JPS4914819A/ja
Publication of GB1429771A publication Critical patent/GB1429771A/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

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)
  • Amplifiers (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)

Abstract

1429771 Automatic control of speed CAV Ltd 21 March 1973 [4 April 1972(2)] 15339/72 and 15341/72 Heading G3R [Also in Division H3] In a system for controlling the fuel supply of an I.C. engine, the speed of the engine is detected by an A.C. tachometer whose output is converted to a D.C. voltage proportional to the frequency of the A.C. signal by means of a diode pump circuit including a capacitor connected across the input and output terminals of an operational amplifier. The control systems described are similar to those disclosed in Specifications 1416861 and 1416862. The A.C. signal is passed through a shaping circuit, Fig. 8 (not shown) to produce a squarewave between terminal 46 and line 23. The voltage developed across the capacitor 96 is proportional to the frequency of the input signal at terminal 46 by reason of its connection across the input and output terminals of operational amplifier 95. The resistor 98 provides a bias so that the zero frequency voltage is high. In a further construction both the pulse shaping and diode pump circuits are modified so that both positive and negative half cycles of the input waveform can be used, Figs. 8 and 11 (not shown). In a modification of the diode pump circuit, Fig. 12 (not shown) an exponentially rising and linearly falling output waveform is obtained, Fig. 15 (not shown) with the maximum and minimum engine speeds forming the end points of the linear portion so that under fault conditions a low output is provided and the circuit thus fails safe.
GB1534172A 1972-04-04 1972-04-04 Control systems for fuel systems for engines Expired GB1429771A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
GB1534172A GB1429771A (en) 1972-04-04 1972-04-04 Control systems for fuel systems for engines
AR247389A AR207103A1 (en) 1972-04-04 1973-01-01 A FUEL PROVISION FOR AN ENGINE
ZA732208A ZA732208B (en) 1972-04-04 1973-03-30 Fuel systems for engines
IT49186/73A IT982933B (en) 1972-04-04 1973-04-02 SYSTEM FOR SUPPLYING FUEL AND ELECTRONIC PUMPING CIRCUIT FOR IT
CA167,841A CA991725A (en) 1972-04-04 1973-04-03 Fuel systems for engines
BR242473A BR7302424D0 (en) 1972-04-04 1973-04-04 A FUEL SUPPLY SET FOR AN ENGINE
ES413339A ES413339A1 (en) 1972-04-04 1973-04-04 Fuel systems for engines
DE2316817A DE2316817A1 (en) 1972-04-04 1973-04-04 FUEL SYSTEM FOR MOTORS AND ELECTRONIC PUMP CIRCUIT IN PARTICULAR FOR A FUEL SYSTEM
FR7312086A FR2179080B1 (en) 1972-04-04 1973-04-04
US347729A US3889648A (en) 1972-04-04 1973-04-04 Fuel systems for engines
IN772/CAL/73A IN140470B (en) 1972-04-04 1973-04-04
JP48038595A JPS4914819A (en) 1972-04-04 1973-04-04

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1533972 1972-04-04
GB1534172A GB1429771A (en) 1972-04-04 1972-04-04 Control systems for fuel systems for engines

Publications (1)

Publication Number Publication Date
GB1429771A true GB1429771A (en) 1976-03-24

Family

ID=26251223

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1534172A Expired GB1429771A (en) 1972-04-04 1972-04-04 Control systems for fuel systems for engines

Country Status (10)

Country Link
US (1) US3889648A (en)
JP (1) JPS4914819A (en)
AR (1) AR207103A1 (en)
CA (1) CA991725A (en)
DE (1) DE2316817A1 (en)
ES (1) ES413339A1 (en)
FR (1) FR2179080B1 (en)
GB (1) GB1429771A (en)
IN (1) IN140470B (en)
IT (1) IT982933B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973538A (en) * 1973-01-06 1976-08-10 C.A.V. Limited Fuel systems for engines
US4096830A (en) * 1975-11-06 1978-06-27 Allied Chemical Corporation Control system for electrically energized engine fuel
US4359984A (en) * 1979-05-25 1982-11-23 Kiyoharu Nakao Fuel control device for diesel engine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478512A (en) * 1967-11-03 1969-11-18 United Aircraft Corp Fuel control for a small gas turbine engine
US3695242A (en) * 1969-09-04 1972-10-03 Diesel Kiki Co Electronic governor for fuel-injection type internal combustion engines
US3724430A (en) * 1969-10-15 1973-04-03 Bosch Gmbh Robert Fuel injection regulator for internal combustion engines
DE1962570C3 (en) * 1969-12-13 1979-10-25 Robert Bosch Gmbh, 7000 Stuttgart Control device for the injection pump of a diesel engine
US3717174A (en) * 1971-08-03 1973-02-20 R Dewall Perfusion safety valve
US3724433A (en) * 1971-08-13 1973-04-03 Ambac Ind Engine governor system with signal-loss protection and controlled oscillator circuit suitable for use therein

Also Published As

Publication number Publication date
DE2316817A1 (en) 1973-10-18
FR2179080A1 (en) 1973-11-16
IN140470B (en) 1976-11-13
CA991725A (en) 1976-06-22
IT982933B (en) 1974-10-21
FR2179080B1 (en) 1976-06-11
US3889648A (en) 1975-06-17
AR207103A1 (en) 1976-09-15
ES413339A1 (en) 1976-06-01
JPS4914819A (en) 1974-02-08

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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