KR950008332Y1 - Air-fuel switching valve adaptor for vehicle - Google Patents
Air-fuel switching valve adaptor for vehicle Download PDFInfo
- Publication number
- KR950008332Y1 KR950008332Y1 KR2019930026661U KR930026661U KR950008332Y1 KR 950008332 Y1 KR950008332 Y1 KR 950008332Y1 KR 2019930026661 U KR2019930026661 U KR 2019930026661U KR 930026661 U KR930026661 U KR 930026661U KR 950008332 Y1 KR950008332 Y1 KR 950008332Y1
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- KR
- South Korea
- Prior art keywords
- air
- fuel ratio
- valve
- ratio switching
- adapter
- Prior art date
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Classifications
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- 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
- F02D19/06—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0602—Control of components of the fuel supply system
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- 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
- F02D19/06—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0639—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
- F02D19/0642—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
- F02D19/0647—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
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- 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
- F02D19/06—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0673—Valves; Pressure or flow regulators; Mixers
- F02D19/0678—Pressure or flow regulators therefor; Fuel metering valves therefor
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- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0064—Layout or arrangement of systems for feeding fuel for engines being fed with multiple fuels or fuels having special properties, e.g. bio-fuels; varying the fuel composition
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- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0057—Means for avoiding fuel contact with valve actuator, e.g. isolating actuators by using bellows or diaphragms
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 저속 및 냉각시동모드를 보인 기화기의 종단면도.1 is a longitudinal cross-sectional view of the carburetor showing the low speed and the cooling start mode of the present invention.
제2도는 본 고안의 정속주행모드를 보인 기화기의 종단면도.Figure 2 is a longitudinal sectional view of the carburetor showing the constant speed driving mode of the present invention.
제3도는 본 고안의 고속주행모드를 보인 기화기의 종단면도.Figure 3 is a longitudinal sectional view of the carburetor showing the high speed driving mode of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 기화기 2 : 어댑터1: carburetor 2: adapter
4 : 밸브 5 : 진공도관4 valve 5 vacuum conduit
6 : 공연비절환다이어프램 7 : 공연비절환밸브6: air-fuel ratio switching diaphragm 7: air-fuel ratio switching valve
8 : 지연 밸브 9 : 바이패스유로8: delay valve 9: bypass flow path
본 고안은 LPG와 가솔린 겸용 자동차의 공연비 절환밸브어댑터에 관한 것이다.The present invention relates to an air-fuel ratio switching valve adapter of LPG and gasoline combined vehicle.
종래의 어댑터는 연료공급회로가 단일회로로 구성된 까닭에 급가속시 엔진출력저하에 따라 장시간 드로들을 완전히 연상태로 운전시 배기가스의 배출이 과다해졌을뿐 연비가 나빠지는 문제점이 있었다.In the conventional adapter, since the fuel supply circuit is composed of a single circuit, the exhaust gas is excessively exhausted when the draw is completely opened for a long time according to the decrease in the engine output during rapid acceleration.
특히 냉각시동시 엔진의 흡입부압이 벤튜리(VENTURI)에 작용하여 공기가 벤튜리를 지날때 발생되는 부압에 의해서 LPG도 함께 혼입되었다.In particular, the inlet negative pressure of the engine acts on the venturi at the start of cooling, and the LPG is also mixed by the negative pressure generated when the air passes through the venturi.
또 공기밀도가 하절기에 비하여 상대적으로 큰 동절기에는 공기가 지나치게 많이 흡입되어서 연료와의 혼합상태가 불량하여 시동이 잘 이루어지지 않는 폐단이 있었다. 따라서 종래에는 LPG전용 기화기에서는 엔진 냉각수의 수온을 감지하여서 엔진에 필요한 연료를 추가 공급해준다.In winter, when air density is relatively higher than summer, there is a closed end where air is sucked in too much and poor mixing with fuel results in poor starting. Therefore, in the conventional LPG vaporizer only detects the water temperature of the engine coolant to provide additional fuel for the engine.
본 고안은 상술한 바와같은 종래의 제반문제점을 해결한 것인바, 본 고안의 목적은 기존의 어댑터에 공연비 절환밸브와 지연밸브를 장착하는 2주 연료공급회로를 형성함으로서 연료공급상태를 개선한 LPG와 가솔린겸용 자동차의 공연비 절환밸브 어댑터를 제공하는데 있다.The present invention solves the conventional problems as described above, the object of the present invention is to improve the fuel supply state by forming a two-week fuel supply circuit for mounting the air-fuel ratio switching valve and the delay valve to the existing adapter LPG And to provide air-fuel ratio switch valve adapters for gasoline-powered vehicles.
본 고안은 첨부한 예시도면에 의하여 더욱 상세히 설명하면 다음과 같다.The present invention is described in more detail by the accompanying drawings as follows.
본 고안은 제1~3도에 예시된 바와같이 기화기(1)의 공기흡입구쪽에 어댑터(2)가 부착되어 있고, 어댑터(2)의 한쪽에 LPG의 유입량을 조절하는 메인조정나사(3)를 가진 밸브(4)를 연결한 것에 있어서, 기화기(1)와 연결되는 진공도관(5)과 어댑터(2)의 다른 한쪽사이에는 공연비 절환 다이어프램(6)과, 이 공연비절환 다이어프램(6)의 작용을 받는 공연비절환 밸브(7)를 설치하고, 상기 공연비 절환 다이어프램(6)과 진공 도관(5)사이에는 지연밸브(8)를 장착하며, 메인 조정나사(3)가 끼워진 밸브(4)와 공연비 절환밸브(7) 사이를 바이패스유로(9)로 연결하여서 된 것이다.According to the present invention, as illustrated in FIGS. 1 to 3, the adapter 2 is attached to the air inlet side of the vaporizer 1, and the main adjusting screw 3 which adjusts the inflow amount of LPG on one side of the adapter 2 is provided. In the connection of the excitation valve 4, the air-fuel ratio switching diaphragm 6 and the action of the air-fuel ratio switching diaphragm 6 are connected between the vacuum conduit 5 connected to the vaporizer 1 and the other side of the adapter 2. An air-fuel ratio switching valve (7) for receiving a valve, a delay valve (8) is installed between the air-fuel ratio switching diaphragm (6) and the vacuum conduit (5), and a valve (4) and an air-fuel ratio in which the main adjustment screw (3) is fitted. The switching valves 7 are connected by a bypass passage 9.
이와 같이 구성된 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention configured as described above are as follows.
제1도에는 본 고안의 저속 및 냉각시동모드가 표현되어 있다.1 shows the low speed and the cooling start mode of the present invention.
즉, 저속 및 냉각시동시 기화기(1)이 진공도관(5)에서 발생하는 부압이 공연비절환다이어프램(6)의 설정압(약 120∼140㎜Hg)보다도 작아서 공연비절환다이어프램That is, the negative pressure generated in the vacuum conduit 5 by the vaporizer 1 at low speed and cooling startup is smaller than the set pressure (about 120 to 140 mmHg) of the air-fuel ratio switching diaphragm 6, so that the air-fuel ratio switching diaphragm
(6)은 작동하지 않으며, 대신에 공연비절환밸브(7)가 "on"하여 유로를 개방시켜준다. 따라서 밸브(4)와 연결된 바이패스 유로(9)를 통해서 연료기 어댑터(2)쪽으로 충분하게 공급되므로 시동성이 좋아진다.(6) does not work, but instead the air-fuel ratio switching valve (7) "on" to open the flow path. Therefore, sufficient start is provided to the fuel adapter 2 through the bypass flow path 9 connected to the valve 4, so that startability is improved.
제2도에는 본 고안의 정속주행모드가 표현되어 있다.2, the constant speed driving mode of the present invention is represented.
즉, 경부하 운전상태인 정속주행시 기화기(1)의 진공도관(5)에는 도로틀(10)이 상기 저속 및 냉각시동모드에 비하여 크게 열리기 때문에 상기 모드에 비하여 큰 부압이 걸리고, 지연밸브(8)를 통해서 공연비절환다이어프램(6)에 설정압 이상의 부압이 작용된다. 따라서 공연비절환밸브(7)가 "off"되므로 밸브(4)와 공연비절환밸브(7)사이의 바이패스유로(9)가 폐쇄되고, 연료가 밸브(4)의 메인유로를 통해서만 어댑터(2)에 공급되므로 공연비는 농도가 엷게 된다.That is, since the road frame 10 is opened to the vacuum conduit 5 of the carburetor 1 in constant speed driving in light load operation state compared with the said low speed and cooling start mode, a large negative pressure is applied compared with the said mode, and the delay valve 8 Negative pressure above the set pressure is applied to the air-fuel ratio switching diaphragm 6 through). Therefore, the air-fuel ratio switching valve 7 is “off”, so the bypass flow path 9 between the valve 4 and the air-fuel ratio switching valve 7 is closed, and fuel is supplied only through the main flow path of the valve 4. The air-fuel ratio becomes thinner because it is supplied to.
결국 연료는 완전연소에 적합한 상태로 공급되므로 연비가 개선된다.As a result, fuel is supplied in a state suitable for complete combustion, thereby improving fuel economy.
제3도에는 본 고안의 고속주행모드가 표현되어 있다.3 shows the fast driving mode of the present invention.
즉, 가속시에는 기화기(1)의 드로틀(10)밑의 압력이 작아지므로 진공도관(5)에는 공연비절환다이어프램(6)의 설정압보다 낮은 부압이 걸리기 때문에 공연비절환다이어프램(6)은 작동하지 않으며, 대신에 공연비 절환밸브(7)가 "on"된다.That is, since the pressure under the throttle 10 of the vaporizer 1 becomes small at the time of acceleration, since the vacuum conduit 5 takes a negative pressure lower than the set pressure of the air-fuel ratio switching diaphragm 6, the air-fuel ratio switching diaphragm 6 does not operate. Instead, the air-fuel ratio switching valve 7 is "on".
따라서, 연료는 밸브(4)의 메인유로와, 바이패스유로(9)를 통해서 어댑터(2)쪽으로 가속에 필요한 양만큼, 다시말해서 드로틀(10)이 개방되는 것에 맞추어서 충분하게 공급되기 때문에 엔진의 출력향상과 연비향상을 도모하는 것이다.Therefore, the fuel is supplied sufficiently in accordance with the amount necessary for acceleration to the adapter 2 through the main flow path of the valve 4 and the bypass flow path 9, that is, in accordance with the opening of the throttle 10. It aims to improve output and fuel economy.
이와 같은 본 고안은 운정상태 즉, 부하조건에 맞추어서 연료공급 상태를 최적으로 유지시켜 줄 수 있기 때문에 저속 및 냉각시동이나 정속 주행 또는 고속주행모드에서 배기가스의 과다배출과 연비의 저하를 효과적으로 방지하고, 엔진의 출력과 연비를 향상시키며, 동절기에서의 시동이 수월한등의 장점이 있다.Since the present invention can maintain the fuel supply state optimally according to the driving state, that is, the load condition, it effectively prevents excessive emission of exhaust gas and deterioration of fuel efficiency in low speed and cooling start, constant speed driving or high speed driving mode. In addition, it improves engine output and fuel economy, and makes it easier to start in winter.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930026661U KR950008332Y1 (en) | 1993-12-07 | 1993-12-07 | Air-fuel switching valve adaptor for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930026661U KR950008332Y1 (en) | 1993-12-07 | 1993-12-07 | Air-fuel switching valve adaptor for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR950019421U KR950019421U (en) | 1995-07-24 |
| KR950008332Y1 true KR950008332Y1 (en) | 1995-10-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019930026661U KR950008332Y1 (en) | 1993-12-07 | 1993-12-07 | Air-fuel switching valve adaptor for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR950008332Y1 (en) |
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1993
- 1993-12-07 KR KR2019930026661U patent/KR950008332Y1/en active IP Right Grant
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| Publication number | Publication date |
|---|---|
| KR950019421U (en) | 1995-07-24 |
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