KR970066009A

KR970066009A - Control of air-fuel ratio using auxiliary fuel of LPG vehicle

Info

Publication number: KR970066009A
Application number: KR1019960007164A
Authority: KR
Inventors: 안회선
Original assignee: 김영귀; 기아자동차 주식회사
Priority date: 1996-03-18
Filing date: 1996-03-18
Publication date: 1997-10-13

Abstract

본 발명은 엘피지차량의 보조연료를 사용한 공연비의 제어장치에 관한 것으로, 1차실(1a)과 2차실(1b)로 분류된 베이퍼라이져(1)와 주조정스크류(3)가 장착된 주연료통로(2)와 믹서(4)와 메인듀티 솔레노이드밸브(6)가 장착된 제1보조연료통로(5) 및 스로우듀티 솔레노이드밸브(8)가 장착된 제2보조연료통로(7)로 이루어져 피드백영역에서 메인듀티 솔레노이드의 듀티값이 항시 중앙 부근에서 제어됨으로 인해 공연비의 제어폭이 넓게 확보되어 급가속 또는 급감속시등 엔진의 급변하는 상황이나 엔진의 열화시에도 공연비의 제어폭이 넓게 확대되어 피드백제어의 성능이 향상되도록 된 것이다.The present invention relates to an apparatus for controlling an air-fuel ratio using an auxiliary fuel of an LPG vehicle, and more particularly to an apparatus for controlling an air-fuel ratio using an auxiliary fuel of an LPG vehicle, which comprises a primary chamber (1a), a vaporizer A first auxiliary fuel passage 5 in which a main duty solenoid valve 6 is mounted and a second auxiliary fuel passage 7 in which a slow duty solenoid valve 8 is mounted, Since the duty value of the main duty solenoid is always controlled in the vicinity of the center, the control width of the air-fuel ratio is secured wide, and the control width of the air-fuel ratio is widened widely in the sudden change of the engine, So that the performance of the control is improved.

Description

Control of air-fuel ratio using auxiliary fuel of LPG vehicle

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명에 따른 엔진의 공연비 제어장치를 도시한 개략도, 제2도는 피드백믹서를 도시한 외관도, 제3도는 제2도의 구조를 도시한 개략도.FIG. 1 is a schematic view showing an air-fuel ratio controlling apparatus of an engine according to the present invention, FIG. 2 is an external view showing a feedback mixer, and FIG. 3 is a schematic view showing a structure of FIG.

Claims

A vaporizer 1 which is classified into a primary chamber 1a and a secondary chamber 1b and performs functions of pressure reduction, vaporization and pressure control; A primary regulating screw 12 for regulating the flow rate of fuel which is mounted and moved in the main fuel path 2 and a main regulating screw 12 connected to one side of the main fuel path 3, A first auxiliary fuel passage 5 connected in parallel with the main fuel passage 3 and a second auxiliary fuel passage 5 connected to the first auxiliary fuel passage 5, And a main duty solenoid valve (6) for opening and closing the main duty solenoid valve (6) for opening and closing the main duty solenoid valve (6) The duty value of the air-fuel ratio is always controlled in the vicinity of the center, The control device of the air-fuel ratio to the second secondary fuel flow-through of the duty solenoid valve (8) for expanding the eopok mounting (7) is parallel with that of the secondary fuel Injector vehicle, characterized in that connected.

※ Note: It is disclosed by the contents of the first application.