KR100394860B1 - Venturi structure of mixer for LPG engine - Google Patents

Venturi structure of mixer for LPG engine Download PDF

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Publication number
KR100394860B1
KR100394860B1 KR10-2000-0083427A KR20000083427A KR100394860B1 KR 100394860 B1 KR100394860 B1 KR 100394860B1 KR 20000083427 A KR20000083427 A KR 20000083427A KR 100394860 B1 KR100394860 B1 KR 100394860B1
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venturi
air
engine
mixer
lpg
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KR10-2000-0083427A
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Korean (ko)
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KR20020054374A (en
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김헌수
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현대자동차주식회사
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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
    • 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
    • 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

본 발명은 LPG 엔진용 믹서의 벤튜리구조에 관한 것으로서,The present invention relates to a venturi structure of an LPG engine mixer,

종래의 벤튜리구조는 벤튜리의 상면이 단순히 평평하게 형성된 형상이므로 벤튜리의 기능이 흡입되는 공기의 유속을 빠르게하는 것에 지나지 않게되며, 이에의해 공기와 연료의 혼합특성이 나빠져 엔진의 연소효율을 보다 향상시키지 못하는 문제점이 있었다.In the conventional venturi structure, since the upper surface of the venturi is simply formed flat, the venturi function is only to speed up the flow rate of the sucked air, thereby deteriorating the mixing characteristics of air and fuel, thereby further improving the combustion efficiency of the engine. There was a problem that can not be.

따라서, 상기 문제점을 해결하기위한 본 발명은 LPG 엔진의 믹서에 장착된 벤튜리의 상면에 흡입되는 공기를 와류시키기위한 다수의 나선홈을 형성하므로서, LPG 엔진 동작시 벤튜리를 통해 흡입되는 공기가 와류되면서 그 후단으로 공급되는 연료(LPG)와 보다 잘 혼합되도록 하여 엔진의 출력이 향상되도록 한 LPG 엔진용 믹서의 벤튜리구조에 관한 것이다.Accordingly, the present invention for solving the above problems forms a plurality of spiral grooves for vortexing the air sucked into the upper surface of the venturi mounted on the mixer of the LPG engine, so that the air sucked through the venturi during the operation of the LPG engine vortex It is related to the venturi structure of the mixer for LPG engine to improve the output of the engine to be better mixed with the fuel (LPG) supplied to the rear end.

Description

엘피지 엔진용 믹서의 벤튜리구조{Venturi structure of mixer for LPG engine}Venturi structure of mixer for LPG engine

본 발명은 LPG 엔진용 믹서의 벤튜리구조에 관한 것으로서, 특히 LPG 엔진 동작시 벤튜리를 통해 흡입되는 공기가 와류되면서 그 후단으로 공급되는 연료(LPG)와 보다 잘 혼합되도록 하여 엔진의 출력이 향상되도록 한 LPG 엔진용 믹서의 벤튜리구조에 관한 것이다.The present invention relates to a venturi structure of a mixer for an LPG engine, and in particular, to improve the output of the engine by allowing the air sucked through the venturi to mix with the fuel (LPG) supplied to the rear end of the LPG engine when it is vortexed. It relates to a venturi structure of a mixer for an LPG engine.

일반적으로 LPG 엔진은 흡입되는 공기와 저장탱크에 저장된 LPG를 믹서에서혼합시켜 엔진으로 공급하여 연소시키고 있다.In general, the LPG engine mixes the intake air and LPG stored in the storage tank in a mixer and supplies the combustion to the engine.

도 1 은 종래의 벤튜리구조가 적용된 믹서를 도시한 것으로서,1 illustrates a mixer to which a conventional venturi structure is applied,

외기를 공급받는 공기 흡입관(1)과, 상기 공기흡입관(1)의 도중에 설치되고 공기유동직경이 감소되도록하여 흡입되는 공기의 유속이 빨라지도록하는 벤튜리(2)와, 상기 벤ㅌ리(2)의 외측으로 설치되어 연료를 분사하는 인젝터(4)와, 상기 벤튜리(2)의 하단에 공기흡입통로와 연통되도록 형성되어 인젝터(4)에서 분사된 연료가 벤튜리(2)를 통과하는 공기와함께 엔진으로 공급되도록 하는 엔진공급홀(3)로 구성되어 있다.An air intake pipe 1 receiving external air, a venturi 2 installed in the middle of the air intake pipe 1 to reduce the air flow diameter, and to increase the flow rate of the sucked air, and the venturi 2 Injector (4) is installed to the outside and injecting the fuel and the lower end of the venturi (2) is formed so as to communicate with the air suction passage through which the fuel injected from the injector (4) passes through the venturi (2) It is composed of an engine supply hole (3) to be supplied to the engine with air.

이와같이 구성된 종래의 믹서는 엔진 구동시 외부로부터 공급되는 공기가 공기흡입관(1)으로 유입되고, 이 공기흡입관(1)으로 유입된 공기는 벤튜리(2)를 통과하면서 그 유속이 빨라진다.In the conventional mixer configured as described above, air supplied from the outside when the engine is driven is introduced into the air intake tube 1, and the air introduced into the air intake tube 1 passes through the venturi 2 so that its flow velocity is increased.

이때, 벤튜리(2)의 외측에 설치되어있는 인젝터(4)에서 연료가 분사되면, 분사된 연료가 연료공급홀(3)을 통해 공기흡입통로로 공급되어 공기와 섞여서 엔진으로 공급된다.At this time, when fuel is injected from the injector 4 installed outside the venturi 2, the injected fuel is supplied to the air suction passage through the fuel supply hole 3, mixed with air and supplied to the engine.

상기 연료가 연료공급홀(3)을 통해 공기흡입관(1) 내부로 공급되는 원리는,The principle that the fuel is supplied into the air intake pipe (1) through the fuel supply hole (3),

공기흡입관(1)을 통해 이동하던 공기가 직경이 작은 벤튜리(2)를 통과하면서 그 유속이 빨라지고, 이에의해 벤튜리(2) 부분을 통과하는 공기의 압력이 증가하면서 연료공급홀(3)에는 강한 부압이 형성되므로 이 부압에 의해 인젝터(4)에서 분사된 연료가 연료공급홀(3)을 통해 공기흡입관(1) 내부로 빨려들어가게되는 것이다.As the air moving through the air suction pipe 1 passes through the small diameter venturi 2, the flow velocity thereof is increased, whereby the pressure of the air passing through the venturi 2 portion increases, thereby providing a fuel supply hole 3 Since a strong negative pressure is formed in the fuel injected from the injector 4 by this negative pressure is sucked into the air suction pipe 1 through the fuel supply hole (3).

그러나, 종래의 벤튜리구조는 벤튜리의 상면이 단순히 평평하게 형성된 형상이므로 벤튜리의 기능이 흡입되는 공기의 유속을 빠르게하는 것에 지나지 않게되며, 이에의해 공기와 연료의 혼합특성이 나빠져 엔진의 연소효율을 보다 향상시키지 못하는 문제점이 있었다.However, in the conventional venturi structure, since the top surface of the venturi is simply formed flat, the venturi function is only to speed up the flow rate of the air to be sucked, thereby deteriorating the mixing characteristics of the air and fuel, thereby improving the combustion efficiency of the engine. There was a problem that could not be improved further.

따라서, 상기 문제점을 해결하기 위한 본 발명은 LPG 엔진의 믹서에 장착된 벤튜리의 상면에 흡입되는 공기를 와류시키기위한 다수의 나선홈을 형성하므로서, LPG 엔진 동작시 벤튜리를 통해 흡입되는 공기가 와류되면서 그 후단으로 공급되는 연료(LPG)와 보다 잘 혼합되도록 하여 엔진의 출력이 향상되도록 한 LPG 엔진용 믹서의 벤튜리구조를 제공함을 목적으로 한다.Therefore, the present invention for solving the above problems forms a plurality of spiral grooves for vortexing the air sucked on the upper surface of the venturi mounted on the mixer of the LPG engine, so that the air sucked through the venturi during operation of the LPG engine vortex The purpose of the present invention is to provide a venturi structure of a mixer for an LPG engine, in which an output of the engine is improved by being better mixed with the fuel (LPG) supplied to the rear end thereof.

상기 목적달성을 위한 본 발명은The present invention for achieving the above object

외기를 공급받는 공기 흡입관과, 상기 공기흡입관의 도중에 설치되고 공기유동직경이 감소되도록하여 흡입되는 공기의 유속이 빨라지도록하는 벤튜리와, 상기 벤튜리의 외측으로 설치되어 연료를 분사하는 인젝터와, 상기 벤튜리의 하단에 공기흡입통로와 연통되도록 형성되어 인젝터에서 분사된 연료가 벤튜리를 통과하는 공기와함께 엔진으로 공급되도록 하는 엔진공급홀을 포함하여 구성된 것에 있어서,An air intake pipe receiving external air, a venturi installed in the middle of the air intake pipe to reduce the air flow diameter, and a flow rate of the sucked air to be increased; an injector installed outside the venturi to inject fuel; In the lower end of the venturi is formed so as to be in communication with the air intake passage so that the fuel injected from the injector is configured to include an engine supply hole to be supplied to the engine with the air passing through the venturi,

상기 벤튜리의 상면에 통과하는 공기가 와류되도록 하는 복수의 나선홈을 형성한 것을 특징으로 한다.Characterized in that a plurality of spiral grooves are formed so that the air passing through the upper surface of the venturi vortex.

도 1 은 종래의 LPG 엔진용 믹서의 벤튜리구조를 보인 단면도.1 is a cross-sectional view showing a venturi structure of a conventional LPG engine mixer.

도 2 는 본 발명의 LPG 엔진용 믹서의 벤튜리구조를 보인 단면도.Figure 2 is a cross-sectional view showing the venturi structure of the mixer for LPG engine of the present invention.

도 3 은 본 발명의 벤튜리구조를 보인 평면도.3 is a plan view showing a venturi structure of the present invention.

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1 : 공기흡입관 2 : 벤튜리1: Air suction pipe 2: Venturi

3 : 연료공급홀 4 : 인젝터3: fuel supply hole 4: injector

5 : 공기흡입통로 10 : 나선홈5: Air suction passage 10: Spiral groove

이하, 첨부된 도면 도 2 와 도 3 을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 2 and 3.

본 발명의 설명에서 종래와 동일구성요소에 대해서는 동일부호 처리하여 중복설명을 피했다.In the description of the present invention, the same components as in the prior art are denoted by the same reference numerals to avoid duplicate explanation.

상기 도면에 의하면, 본 발명의 가장큰 특징은 공기흡입관(1) 도중에 설치되는 벤튜리(2)의 상면에 복수개의 나선홈(10)을 형성한 것이다.According to the drawings, the greatest feature of the present invention is to form a plurality of spiral grooves 10 on the upper surface of the venturi (2) installed in the middle of the air suction pipe (1).

상기 벤튜리(2)는 공기흡입통로(5)를 감소시켜 공기흡입관(1)으로 흡입되는 공기의 유속이 빨라지도록 하여 연료공급홀(3)에 부압이 가해지도록 하므로서, 인젝터(4)에서 분사된 연료가 연료공급홀(3)을 통해 빨려나오도록 하는 기능을 갖는다.The venturi (2) is injected from the injector (4) by reducing the air intake passage (5) to increase the flow rate of the air sucked into the air intake pipe (1) so that the negative pressure is applied to the fuel supply hole (3) The fuel is sucked out through the fuel supply hole (3).

하지만, 상기 설명과같이 벤튜리(2)의 상면에 도 3 과같은 복수의 나선홈(10)을 형성하게되면, 상기 나선홈(10)을 통과하는 공기가 강하게 와류되면서 꼭 회오리같이 회전하면서 공기흡입통로(5)를 통과하게된다.However, when the plurality of spiral grooves 10 as shown in FIG. 3 are formed on the top surface of the venturi 2 as described above, the air passing through the spiral grooves 10 is strongly vortexed and rotates like a whirlwind. It passes through the suction passage (5).

상기 공기흡입통로(5)를 통과하는 공기가 회오리와같이 강하게 회전함에 따라 연료공급홀(3)을 통해 공급되는 연료와 아주 잘 혼합되게 되며, 이와같이 연료와 공기가 잘 혼합된 상태로 엔진에 공급되면 엔진의 연소효율이 향상되고, 이에의해 엔진의 출력특성이 향상되며, 연비를 감소시킬 수 있는 효과를 기대할 수 있다.As the air passing through the air intake passage 5 rotates strongly like a whirlwind, it is very well mixed with the fuel supplied through the fuel supply hole 3, and thus, the fuel and the air are supplied to the engine in a well mixed state. When the combustion efficiency of the engine is improved, thereby improving the output characteristics of the engine, it can be expected to reduce the fuel economy.

이상에서 설명한 바와같이 본 발명은 LPG 엔진의 믹서에 장착된 벤튜리의 상면에 흡입되는 공기를 와류시키기위한 다수의 나선홈을 형성하므로서, LPG 엔진 동작시 벤튜리를 통해 흡입되는 공기가 와류되면서 그 후단으로 공급되는 연료(LPG)와 보다 잘 혼합되도록 하여 엔진의 출력이 향상되도록 한 LPG 엔진용 믹서의 벤튜리구조를 제공하는 효과를 기대할 수 있다.As described above, the present invention forms a plurality of spiral grooves for vortexing the air sucked into the upper surface of the venturi mounted on the mixer of the LPG engine, so that the air sucked through the venturi vortex during operation of the LPG engine. It is expected that the effect of providing a venturi structure of the LPG engine mixer, which is better mixed with the fuel (LPG) supplied to improve the output of the engine.

Claims (1)

외기를 공급받는 공기 흡입관(1)과, 상기 공기흡입관(1)의 도중에 설치되고 공기유동직경이 감소되도록하여 흡입되는 공기의 유속이 빨라지도록하는 벤튜리(2)와, 상기 벤튜리(2)의 외측으로 설치되어 연료를 분사하는 인젝터(4)와, 상기 벤튜리(2)의 하단에 공기흡입통로와 연통되도록 형성되어 인젝터(4)에서 분사된 연료가 벤튜리(2)를 통과하는 공기와함께 엔진으로 공급되도록 하는 엔진공급홀(3)을 포함하여 구성된 것에 있어서,An air intake tube 1 receiving external air, a venturi 2 installed in the middle of the air intake tube 1 to reduce the air flow diameter, and to increase the flow rate of the sucked air, and the venturi 2 Injector (4) is installed to the outside of the injecting fuel and the lower end of the venturi (2) is formed so as to communicate with the air suction passage so that the fuel injected from the injector (4) passes through the venturi (2) In the configuration comprising an engine supply hole (3) to be supplied to the engine together with, 상기 벤튜리(2)의 상면에 통과하는 공기가 와류되도록 하는 복수의 나선홈(10)을 형성한 것을 특징으로하는 엘피지 엔진용 믹서의 벤튜리구조.Venturi structure of the mixer for an LLP engine, characterized in that a plurality of spiral grooves (10) is formed so that the air passing through the upper surface of the venturi (2) is vortexed.
KR10-2000-0083427A 2000-12-28 2000-12-28 Venturi structure of mixer for LPG engine KR100394860B1 (en)

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US7426920B1 (en) * 2007-06-06 2008-09-23 Omnitek Engineering Corp. Fuel mixer apparatus and method
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