KR900013191A - Air-fuel ratio control method of liquefied gas engine - Google Patents

Air-fuel ratio control method of liquefied gas engine Download PDF

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Publication number
KR900013191A
KR900013191A KR1019890001638A KR890001638A KR900013191A KR 900013191 A KR900013191 A KR 900013191A KR 1019890001638 A KR1019890001638 A KR 1019890001638A KR 890001638 A KR890001638 A KR 890001638A KR 900013191 A KR900013191 A KR 900013191A
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KR
South Korea
Prior art keywords
fuel
air
engine
liquefied gas
fuel ratio
Prior art date
Application number
KR1019890001638A
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Korean (ko)
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KR910008912B1 (en
Inventor
정연광
신현찬
Original Assignee
이양섭
현대자동차 주식회사
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.)
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Application filed by 이양섭, 현대자동차 주식회사 filed Critical 이양섭
Priority to KR1019890001638A priority Critical patent/KR910008912B1/en
Publication of KR900013191A publication Critical patent/KR900013191A/en
Application granted granted Critical
Publication of KR910008912B1 publication Critical patent/KR910008912B1/en

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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
    • 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

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

Abstract

내용 없음No content

Description

액화가스 엔진의 공연비 제어방법Air-fuel ratio control method of liquefied gas engine

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 실시예를 나타내는 엔진의 개략 구성도.1 is a schematic configuration diagram of an engine showing an embodiment of the present invention.

제2도는 본 발명에 있어서 연료 제어계통의 흐름을 나타내는 플로우 챠트.2 is a flow chart showing the flow of the fuel control system in the present invention.

제3도는 본 발명과 종래 기술에 의한 공연비 곡선의 비교 그래프.3 is a comparison graph of the air-fuel ratio curve according to the present invention and the prior art.

Claims (2)

베이퍼라이저에서 내압용기의 액화기스를 엔진의 냉각수로 가온하여 감압 기화시키고, 흡기계의 혼합기를 통해 엔진으로 공급하는 공연비 제어방법에 있어서, 연료차단밸브(8)이 설치된 주연료통로(4)와 피드백 솔레노이드(9)가 설치된 보조연료통로(5)에 의해 베이퍼라이저(2)에서 혼합기(3)까지의 연료공급계를 구성하고, 냉각수 온도가 저온영역으로 검출될 때 전기한 연료차단밸브(8)로 주연료통로(4)를 폐쇄함과 아울러 전기한 피드백 솔레노이드(9)를 냉각수의 수온에 따라 설정된 듀티비로 끊임없이 개폐제어하여 보조연료통로(5)를 경유하는 연료의 공급량을 엔진의 운전상태에 적당한 공연비를 이루는 분량으로 엔진에 공급함을 특징으로 하는 액화가스 엔진의 공연비 제어방법.In the vaporizer, an air-fuel ratio control method in which a liquefied gas of an internal pressure vessel is heated with cooling water of an engine, vaporized under reduced pressure, and supplied to an engine through a mixer of an intake system, includes a main fuel passage 4 provided with a fuel cutoff valve 8 and feedback. A fuel supply system from the vaporizer 2 to the mixer 3 is formed by the auxiliary fuel passage 5 in which the solenoid 9 is installed, and when the coolant temperature is detected as the low temperature region, the fuel shutoff valve 8 is turned on. The main fuel passage 4 is closed and the feedback solenoid 9 is continuously opened and closed at a duty ratio set according to the temperature of the coolant so that the amount of fuel supplied through the auxiliary fuel passage 5 can be adjusted to the operating state of the engine. An air-fuel ratio control method for a liquefied gas engine, characterized in that it is supplied to the engine in an amount forming the air-fuel ratio. 제1항에 있어서 연료차단밸브(8)은 상개형 밸브이고, 피이드백 솔레노이드(9)는 상폐형 밸브로 됨을 특징으로 하는 액화가스 엔진의 공연비 제어방법.2. The method for controlling the air-fuel ratio of a liquefied gas engine according to claim 1, wherein the fuel shutoff valve (8) is an upper valve and the feedback solenoid (9) is an upper closed valve. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890001638A 1989-02-13 1989-02-13 Control method for liquid gas engine KR910008912B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890001638A KR910008912B1 (en) 1989-02-13 1989-02-13 Control method for liquid gas engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890001638A KR910008912B1 (en) 1989-02-13 1989-02-13 Control method for liquid gas engine

Publications (2)

Publication Number Publication Date
KR900013191A true KR900013191A (en) 1990-09-05
KR910008912B1 KR910008912B1 (en) 1991-10-24

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ID=19283768

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890001638A KR910008912B1 (en) 1989-02-13 1989-02-13 Control method for liquid gas engine

Country Status (1)

Country Link
KR (1) KR910008912B1 (en)

Also Published As

Publication number Publication date
KR910008912B1 (en) 1991-10-24

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