JPS57131853A - Air fuel ratio control process and device for internal combustion engine of low temperature liquefied gas - Google Patents

Air fuel ratio control process and device for internal combustion engine of low temperature liquefied gas

Info

Publication number
JPS57131853A
JPS57131853A JP56017307A JP1730781A JPS57131853A JP S57131853 A JPS57131853 A JP S57131853A JP 56017307 A JP56017307 A JP 56017307A JP 1730781 A JP1730781 A JP 1730781A JP S57131853 A JPS57131853 A JP S57131853A
Authority
JP
Japan
Prior art keywords
fuel
mixing ratio
gas
lpg
low temperature
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.)
Pending
Application number
JP56017307A
Other languages
Japanese (ja)
Inventor
Makoto Kato
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP56017307A priority Critical patent/JPS57131853A/en
Publication of JPS57131853A publication Critical patent/JPS57131853A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
    • F02M21/0239—Pressure or flow regulators therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
    • F02D19/021—Control of components of the fuel supply system
    • F02D19/023—Control of components of the fuel supply system to adjust the fuel mass or volume flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
    • F02D19/026—Measuring or estimating parameters related to the fuel supply system
    • F02D19/027—Determining the fuel pressure, temperature or volume flow, the fuel tank fill level or a valve position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
    • F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/04—Gas-air mixing apparatus
    • F02M21/047—Venturi mixer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
    • F02M21/0233—Details of actuators therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

PURPOSE:To prevent a decrease in engine output and an increase in fuel consumption rate by detecting with a sensor the temperature and vapor pressure of low temperature liquefied gas and a mixing ratio of two classes of hydrocarbon contained in the gas and by controlling the air fuel ratio of the mixed gas in response to the mixing ratio. CONSTITUTION:A fuel port 17 is opened at a throttle of a venturi member 12. The flow rate of LPG supplied through a fuel inlet nozzle 10 is measured by a metering needle 18, and the LPG is sucked into the venturi member and then into a combustion chamber together with air flow. The metering needle 18 is longitudinally driven by a proportional solenoid 20. The temperature and vapor pressure of LPG detected by a temperature sensor 25 and a pressure sensor 26 of a tank 21 are transmitted into a control unit 24. Then, the mixing ratio of gas is detected, and the electric curent is supplied to a solenoid coil 21 in proportion to the mixing ratio while the metering needle 18 is maintained at a position where the exciting force of said coil is balanced with the force of spring 22, thereby controlling the supply volume of fuel.
JP56017307A 1981-02-06 1981-02-06 Air fuel ratio control process and device for internal combustion engine of low temperature liquefied gas Pending JPS57131853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56017307A JPS57131853A (en) 1981-02-06 1981-02-06 Air fuel ratio control process and device for internal combustion engine of low temperature liquefied gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56017307A JPS57131853A (en) 1981-02-06 1981-02-06 Air fuel ratio control process and device for internal combustion engine of low temperature liquefied gas

Publications (1)

Publication Number Publication Date
JPS57131853A true JPS57131853A (en) 1982-08-14

Family

ID=11940347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56017307A Pending JPS57131853A (en) 1981-02-06 1981-02-06 Air fuel ratio control process and device for internal combustion engine of low temperature liquefied gas

Country Status (1)

Country Link
JP (1) JPS57131853A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5943659U (en) * 1982-09-16 1984-03-22 自動車機器技術研究組合 Fuel supply system for liquefied petroleum gas internal combustion engine
US5542398A (en) * 1995-04-26 1996-08-06 Marcon; Robert V. LPG fuel tank, and fuel supply system, for engines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5943659U (en) * 1982-09-16 1984-03-22 自動車機器技術研究組合 Fuel supply system for liquefied petroleum gas internal combustion engine
JPH03508Y2 (en) * 1982-09-16 1991-01-10
US5542398A (en) * 1995-04-26 1996-08-06 Marcon; Robert V. LPG fuel tank, and fuel supply system, for engines

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