KR20040003143A - Intake manifold of vehicle - Google Patents

Intake manifold of vehicle Download PDF

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Publication number
KR20040003143A
KR20040003143A KR1020020037503A KR20020037503A KR20040003143A KR 20040003143 A KR20040003143 A KR 20040003143A KR 1020020037503 A KR1020020037503 A KR 1020020037503A KR 20020037503 A KR20020037503 A KR 20020037503A KR 20040003143 A KR20040003143 A KR 20040003143A
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KR
South Korea
Prior art keywords
intake manifold
shaft
plates
inlet holes
intake port
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KR1020020037503A
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Korean (ko)
Inventor
최명식
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현대자동차주식회사
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Priority to KR1020020037503A priority Critical patent/KR20040003143A/en
Publication of KR20040003143A publication Critical patent/KR20040003143A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/104Intake manifolds
    • F02M35/108Intake manifolds with primary and secondary intake passages
    • F02M35/1085Intake manifolds with primary and secondary intake passages the combustion chamber having multiple intake valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/10242Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10255Arrangements of valves; Multi-way valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/10006Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10072Intake runners

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

PURPOSE: An intake manifold is provided to prevent degradation of full load performance of engine, while reducing flow resistances of fuel-air mixture. CONSTITUTION: An intake manifold comprises a shaft(3a) where a manifold throttle valve(3) penetrates through first to fourth inlet holes(2a,2b,2c,2d) of an intake port(2) of a runner by being operated by the control signal output from a controller; and first to fourth plates(3b,3b',3b'',3b''') coupled to the shaft so as to open/shut the spaces of the first to fourth inlet holes. The shaft has a center corresponding to the bottom of the intake port center(O) of the intake port. The first to fourth plates have both side surfaces rounded inward so as to correspond to the shapes of the spaces of the first to fourth inlet holes.

Description

차량용 흡기매니폴드{Intake manifold of vehicle}Intake manifold of vehicle

본 발명은 차량용 흡기매니폴드에 관한 것으로, 보다 상세하게는 혼합기가 흐르는 흡기포트의 단면 형상을 변화시키지 않아 전개성능(Full Load Performance)이 저하되지 않도록 된 텀블 유도형 MTV(Manifold Throttle Valve)를 구비한 차량용 흡기매니폴드에 관한 것이다.The present invention relates to an intake manifold for a vehicle, and more particularly, has a tumble induction type MTV (Manifold Throttle Valve) which does not change the cross-sectional shape of the intake port through which the mixer flows, so that the full load performance is not reduced. A vehicle intake manifold is provided.

일반적으로, 각종 내연기관은 연료와 공기를 적절히 혼합하여서 엔진의 실린더로 유입시키고, 유입된 혼합공기를 점화시켜서 동력을 얻는 것으로 가솔린이나 디젤등을 주 연료로 사용하는데, 잘 알려진 바와 같이 내연기관은 분사되는 연료가 가솔린이나 디젤이든 간에 연료가 원할히 연소될 수 있도록 공기여과기에서 흡입된 공기를 필터로 정화한 후, 분사되는 연료와 자연 혼합하여서 기화기나 분사기로 분사하여서 내연기관의 동력을 얻도록 하고 있다.In general, various internal combustion engines use gasoline or diesel as a main fuel by properly mixing fuel and air into an engine cylinder and igniting the mixed air to obtain power. Whether the fuel injected is gasoline or diesel, the air sucked in the air filter is purified by a filter so that the fuel can be burned smoothly, and then naturally mixed with the injected fuel and injected into a vaporizer or an injector to obtain the power of the internal combustion engine. have.

이와 같은 내연기관의 출력은 내연기관의 회전수와 배기량 및 실린더속의 혼합기체 압력에 비례하는 것이어서 배기량과 엔진의 회전수가 정해진 상태에서 출력을 향상시키기 위해서는 혼합기체의 압력을 높여야 하며, 혼합기체의 압력을 높이기 위해서는 흡기메니폴드로 유입되는 공기의 흡입도를 증가시켜주게 된다.Since the output of the internal combustion engine is proportional to the rotational speed and displacement of the internal combustion engine and the pressure of the mixed gas in the cylinder, the pressure of the mixed gas must be increased in order to improve the output at a fixed state of the displacement and the engine speed. In order to increase the suction rate of the air flowing into the intake manifold is increased.

이때, 가솔린엔진의 경우에는 공기와 연료의 혼합비가 대략 14.7:1 정도 유지되도록 설계되어 있지만, 만약 상기 혼합비가 21∼23:1 정도의 극단적인 희박한 영역에서의 연소제어가 가능하다면 대폭적인 연비의 향상이 가능하고 또한 정화하기 어려운 질소화합물 등을 배출시키지 않는 장점이 있게 된다.In the case of gasoline engines, the mixing ratio of air and fuel is maintained at about 14.7: 1, but if the mixing ratio is able to control combustion in an extremely sparse region of 21 to 23: 1, There is an advantage that it is possible to improve and not to release nitrogen compounds which are difficult to purify.

그러나, 이와 같은 희박 연소 엔진중 가장 대표적인 것이 린번엔진으로서, 이 린번엔진은 기존 엔진 방식과는 달리 공기와 연료를 강한 와류에 실어서 연소실 내부로 흡입하여 일반적인엔진의 정상 혼합비(공기14.7:연료1) 보다 매우 희박한 상태 즉, 공기와 연료의 혼합비를 22:1 에서 압축, 폭발시키므로서 연료 소모량을 20∼25% 정도 줄여 주게 됨은 물론이다.However, the most representative of such lean burn engines is the lean burn engine. Unlike the conventional engine method, the lean burn engine carries air and fuel into a strong vortex and sucks it into the combustion chamber, thereby allowing a normal mixing ratio of the general engine (air 14.7: fuel 1). It is a matter of course that the fuel consumption is reduced by 20-25% by compressing and exploding the air in a much thinner state.

여기서, 희박연소란 공연비(Air Fuel Ratio)와 연소에 관련된 기술적인 사항으로 연소실에서 연료와 공기의혼합비율이 이론공연비(Stoichiometric)보다 더 많은 공기가 혼합된 혼합기에서의 연소를 일컫는다.Here, lean combustion refers to combustion in an air fuel ratio and a technical matter related to combustion, in which a mixture of fuel and air in a combustion chamber is mixed with more air than the theoretical ratio (Stoichiometric).

이때, 이와 같이 희박연소를 가능하게 해주는 주요 인자로써 연료가 흡입공기에 실려 점화플러그(Spark Plug) 주위에 모이는 연료가 스월(Swirl)이나 텀블(Tumble)유동에 의해 성층화(Stratification)시켜 가능하게 되는데, 이와 같은 유동을 유도하기 위한 많은 기술적 수단 중 한 예로서 도 1에 도시된 바와 같이, 이와 같은 유동을 유도함은 물론 흡기 유동의 세기를 강화시켜 엔진의 냉시동시 연소안정성을 확보하도록 MTV(Manifold Throttle Valve)를 구비한 흡기메니폴드가 있다.In this case, as the main factor that enables the lean burn, fuel is sucked into the intake air and the fuel collected around the spark plug is stratified by swirl or tumble flow. As one of many technical means for inducing such a flow, as shown in FIG. There is an intake manifold with a valve.

즉, 상기 흡기메니폴드(1)의 혼합기가 흐르는 다수의 러너(Runner)에 형성된 흡입포트(2)의 제1·2·3·4유입홀(2a,2b,2c,2d)을 관통하는 밸브(3)가 구비되는데, 이 밸브(3)는 콘트롤러(예를 들어, ECU)의 제어신호에 의해 작동되는 구동수단을 통해 회전되면서 제1·2·3·4유입홀(2a,2b,2c,2d)을 관통하는 샤프트(3a)와,이 샤프트(3a)에 결합되어 제1·2·3·4유입홀(2a,2b,2c,2d)의 공간 영역에 위치되면서 이 공간 영역을 각각 개·폐하는 제1·2·3·4플레이트(3b,3b',3b",3b'")로 이루어지게 된다.That is, a valve penetrating the first, second, third and fourth inlet holes 2a, 2b, 2c, and 2d of the suction port 2 formed in the plurality of runners through which the mixer of the intake manifold 1 flows ( 3), the valve 3 is rotated through a drive means operated by a control signal of a controller (e.g. ECU), and the first, second, third and fourth inlet holes 2a, 2b, 2c, The space area is opened while the shaft 3a penetrates 2d and the space area of the first, second, third and fourth inlet holes 2a, 2b, 2c, and 2d is coupled to the shaft 3a. The closing is made of first, second, third, and fourth plates (3b, 3b ', 3b ", 3b'").

여기서, 상기 제1·2·3·4플레이트(3b,3b',3b",3b'")는 도 2에 도시된 바와 같이, 상기 밸브(3)의 샤프트(3a)가 흡기포트(3)의 중심선상에 일치되도록 위치되기 때문에 완전 열림시 제1·2·3·4유입홀(2a,2b,2c,2d)의 흡기포트중심(O)라인상에 위치되는 한편, 완전 닫힘시에는 도 3에 도시된 바와 같이 제1·2·3·4플레이트(3b,3b',3b",3b'")가 각각 제1·2·3·4유입홀(2a,2b,2c,2d)의 공간영역을 상부부위 소정 통로갭(L)만을 남겨두고 막아주게 된다.Here, as shown in FIG. 2, the first, second, third, and fourth plates 3b, 3b ', 3b ", and 3b'" have an intake port 3 formed therein. Is positioned on the center line of the intake port center (O) of the first, second, third, fourth inlet holes (2a, 2b, 2c, 2d) when fully opened. As shown in Fig. 3, the first, second, third, and fourth plates 3b, 3b ', 3b ", and 3b'" respectively form the first, second, third and fourth inlet holes 2a, 2b, 2c, and 2d. The space region is blocked, leaving only a predetermined passage gap L in the upper portion.

여기서, 상기 통로갭(L)은 약 4.8mm 정도를 갖게 된다.Here, the passage gap L is about 4.8mm.

이와 같은 흡기매니폴드는 연소실로 공기가 유입되는 통로인 흡입밸브가 2개인 엔진(예를 들어, DOHC 엔진)은 냉 시동시와 같은 희박연소 구간에서 콘트롤러에 의해 제어되는 MTV인 밸브(3)를 이용하여 도 3에 도시된 바와 같이, 한쪽 흡기포트(2)를 닫게 되면 다른쪽 통로로 쏠려 들어가는 혼합기의 유입속도가 빨라지면서 연소실로 들어가고 이에 따라, 연소실에서 강한 횡방향 와류를 일으켜 희박 공연비에서도 연소가 가능하게 된다.Such an intake manifold is an engine having two intake valves (for example, DOHC engines), which are passages of air into the combustion chamber, and the valve 3, which is an MTV controlled by a controller, in a lean burn section such as during cold start. As shown in FIG. 3, when one intake port 2 is closed, the inflow rate of the mixer drawn into the other passage is increased and enters the combustion chamber, thereby causing a strong transverse vortex in the combustion chamber to burn even at a lean air-fuel ratio. Becomes possible.

그러나, 이와 같은 밸브(3)는 도 1에 도시된 바와 같이 샤프트(3a)가 흡기포트(3)의 중심선상에 일치되고 또한 제1·2·3·4플레이트(3b,3b',3b",3b'")가 도 3에 도시된 바와 같이 양 끝 쪽이 평평하게 형성되어 전체적으로 평면을 이루게 되고 이에 따라, 혼합기의 흐름경로인 러너가 원형이나 또는 타원형의 단면을 이루다가 상기 제1·2·3·4플레이트(3b,3b',3b",3b'")가 구비된 구간부터 플레이트(3b,3b',3b",3b'")의 형상에 맞게 제1·2·3·4유입홀(2a,2b,2c,2d)의 단면이 변하게 되는 단점이 있게 된다.However, as shown in FIG. 1, the valve 3 has the shaft 3a aligned on the center line of the intake port 3 and the first, second, third, and fourth plates 3b, 3b ', 3b ". 3b '") is flattened at both ends to form a flat surface as shown in FIG. 3, so that the runner, which is the flow path of the mixer, has a circular or elliptical cross section. First, second, third, fourth, fourth, fourth, third, fourth, third, fourth, third, fourth, third, fourth, third, fourth, third, fourth, third, fourth, third, fourth, third, fourth There is a disadvantage that the cross section of the holes 2a, 2b, 2c, 2d is changed.

이와 같이, 상기 흡기매니폴드의 러너 단면이 전체적으로 균일하게 이루어지지 않고 상기 밸브(3)에 의해 그 단면이 변화 즉, 상대적으로 타 구간에 비해 좁아지거나 상기 플레이트(3b,3b',3b",3b'")의 형상에 맞게 변화되고 또한 흡기포트중심(O)에 위치된 플레이트(3b,3b',3b",3b'")의 점유공간으로 인해 상기 밸브(3)가 없는 경우에 비해 흐르는 혼합기의 유동저항이 크거나 유동의 웨이브(Wave)특성이 변하게 되고 이에 따라, 엔진의 전개성능(Full Load Performance)도 크게 저하되는 단점이 있게 된다.As such, the cross section of the runner of the intake manifold is not made uniform throughout, and the cross section is changed by the valve 3, that is, relatively narrower than other sections, or the plates 3b, 3b ', 3b ", and 3b. Mixer which is adapted to the shape of '"and also occupies the space of the plates 3b, 3b', 3b", 3b '"positioned at the intake port center O compared to the case where the valve 3 is not present. The flow resistance of the large or the wave (wave) characteristics of the flow (Wave) is changed, accordingly, there is a disadvantage that the full load performance of the engine is also greatly reduced.

이에 본 발명은 상기와 같은 점을 감안하여 발명된 것으로, 흡기매니폴드의 흐름통로인 러너의 단면형상을 전 구간에 걸쳐 일정하게 유지시켜 MTV 밸브에 의한 혼합기의 유동저항과 웨이브특성의 변화를 방지하면서 엔진의 전개성능도 MTV 밸브가 없는 경우와 동일하게 유지함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above, and the cross-sectional shape of the runner, which is the flow passage of the intake manifold, is kept constant over the entire section to prevent the change of the flow resistance and the wave characteristics of the mixer caused by the MTV valve. However, the purpose is to maintain the same deployment performance of the engine as without the MTV valve.

상기와 같은 목적을 달성하기 위한 본 발명은, 흡기메니폴드의 혼합기 통로인 러너의 흡입포트를 이루는 다수의 유입홀의 공간 영역을 개·폐하는 MTV 밸브가 구비되되, 이 밸브는 콘트롤러의 제어신호에 의해 작동되는 구동수단을 통해 회전되면서 유입홀의 공간 저면쪽으로 위치되면서 관통하는 샤프트와, 이 샤프트에 결합되어 유입홀의 단면 형상에 상응되게 그 양쪽부위가 말아 올려져 라운드형상을 이루면서 완전 닫힘시 유입홀의 공간 저면부에 밀착되는 플레이트로 이루어진 것을 특징으로 한다.The present invention for achieving the above object is provided with an MTV valve for opening and closing the space area of the plurality of inlet holes forming the intake port of the runner which is the mixer passage of the intake manifold, the valve by the control signal of the controller A shaft that penetrates through the operating means and is positioned toward the bottom of the space of the inlet hole, and is coupled to the shaft to be rolled up to correspond to the cross-sectional shape of the inlet hole to form a round shape and the bottom of the space of the inlet hole when fully closed. Characterized in that the plate made in close contact with the part.

도 1은 종래에 따른 MTV타입의 흡기매니폴드 구성도1 is a configuration diagram of an intake manifold of a conventional MTV type

도 2는 도 1의 흡기포트가 완전히 열린 상태도2 is a state in which the intake port of Figure 1 is fully open

도 3은 도 1의 흡기포트가 완전히 닫힌 상태도3 is a state in which the intake port of FIG. 1 is completely closed

도 4는 본 발명에 따른 텀블 유도 밸브를 갖춘 MTV 타입의 흡기매니폴드 구성도Figure 4 is a configuration diagram of the intake manifold of the MTV type with a tumble induction valve according to the present invention

도 5는 본 발명에 따른 밸브의 구성도5 is a block diagram of a valve according to the present invention

도 6은 본 발명에 따른 흡기포트가 완전히 닫힌 상태도6 is a state in which the intake port is completely closed in accordance with the present invention

도 7은 본 발명에 따른 흡기포트가 완전히 열린 상태도7 is a state in which the intake port is fully open in accordance with the present invention

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1 : 흡기매니폴드2 : 흡기포트1: Intake manifold 2: Intake port

2a,2b,2c,2d : 제1·2·3·4유입홀3 : 밸브2a, 2b, 2c, 2d: 1, 2, 3, 4 inlet hole 3: valve

3a : 샤프트3a' : 결합부3a: shaft 3a ': coupling part

3b,3b',3b",3b'" : 제1·2·3·4플레이트3b, 3b ', 3b ", 3b'": 1, 2, 3, 4 plates

L,L' : 통로갭O : 흡기포트중심L, L ': Channel gap O: Center of intake port

C : 샤프트중심C: shaft center

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 4는 본 발명에 따른 텀블 유도 밸브를 갖춘 MTV 타입의 흡기매니폴드 구성도를 도시한 것인바, 본 발명은 흡기메니폴드(1)의 혼합기 통로인 러너의 흡입포트(2)를 이루는 다수의 제1·2·3·4유입홀(2a,2b,2c,2d)의 공간 영역을 개·폐하는 MTV 밸브(3)가 구비되되, 이 밸브(3)는 콘트롤러의 제어신호에 의해 작동되는 구동수단을 통해 회전되면서 제1·2·3·4유입홀(2a,2b,2c,2d)의 공간 저면쪽으로 위치되면서 관통하는 샤프트(3a)와, 이 샤프트(3a)에 결합되어 제1·2·3·4유입홀(2a,2b,2c,2d)의 단면 형상에 상응되어 완전 닫힘시 유입홀(2a,2b,2c,2d)의 공간 저면부에 밀착되는 제1·2·3·4플레이트(3b,3b',3b",3b'")로 이루어지게 된다.Figure 4 shows the configuration of the intake manifold of the MTV type with a tumble induction valve according to the present invention, the present invention is a plurality of forming the intake port (2) of the runner which is the mixer passage of the intake manifold (1) An MTV valve 3 is provided for opening and closing the space area of the 1, 2, 3, 4 inlet holes 2a, 2b, 2c, and 2d, which is driven by a control signal of the controller. A shaft 3a penetrating while being rotated through the means and positioned toward the bottom of the space of the first, second, third, and fourth inlet holes 2a, 2b, 2c, and 2d, and coupled to the shaft 3a, Corresponding to the cross-sectional shape of the inlet holes 2a, 2b, 2c, and 2d, the first in contact with the bottom surface of the space of the inlet holes 2a, 2b, 2c, and 2d when fully closed. Plates 3b, 3b ', 3b ", 3b'".

여기서, 상기 제1·2·3·4플레이트(3b,3b',3b",3b'")는 도 5에 도시된 바와 같이, 샤프트(3a)의 결합부(3a')에 일단이 고정·결합되고 양쪽측면은 각각 안쪽으로 말아 올려져 완만한 라운드(Round)형상을 이루게 된다.Here, the first, second, third, and fourth plates 3b, 3b ', 3b ", 3b'" are fixed at one end to the engaging portion 3a 'of the shaft 3a, as shown in FIG. The two sides are rolled up inward to form a gentle round shape.

또한, 상기 밸브(3)의 샤프트(3a)가 갖는 샤프트중심(C)위치는 도 6에 도시된 바와 같이, 흡기포트(3)의 흡기포트중심(O)의 하부 바닥부위와 일치되게 형성되어 제1·2·3·4플레이트(3b,3b',3b",3b'")가 완전 열릴 때 제1·2·3·4유입홀(2a,2b,2c,2d)의 하부 바닥면을 따라 밀착되는 한편, 완전 닫힘시에는 도 7에 도시된 바와 같이 제1·2·3·4플레이트(3b,3b',3b",3b'")가 각각 제1·2·3·4유입홀(2a,2b,2c,2d)의 공간영역을 상부부위 소정 통로갭(L)만을 남겨두고 막아주게 된다.In addition, the shaft center (C) position of the shaft (3a) of the valve (3) is formed to match the bottom bottom portion of the intake port center (O) of the intake port (3) as shown in FIG. When the 1, 2, 3, 4 plates (3b, 3b ', 3b ", 3b'") are fully open, the lower bottom surface of the 1, 2, 3, 4 inlet holes (2a, 2b, 2c, 2d) is opened. While being in close contact with each other, the first, second, third and fourth plates 3b, 3b ', 3b ", and 3b'" respectively show the first, second, third and fourth inflow holes as shown in FIG. The space area of (2a, 2b, 2c, 2d) is blocked, leaving only a predetermined passage gap L in the upper portion.

여기서, 상기 통로갭(L')은 약 3.3mm 정도를 갖게 된다.Here, the passage gap L 'is about 3.3mm.

또한, 상기 흡기매니폴드(1)의 러너는 전체적으로 동일한 형상의 단면을 형성하게 되는데 이는, 상기 밸브(3)의 각 제1·2·3·4플레이트(3b,3b',3b",3b'")의 양쪽측면이 말아 올려져 제1·2·3·4유입홀(2a,2b,2c,2d)의 공간영역에 적합한 형상을 이루게 되기 때문임은 물론이다.In addition, the runner of the intake manifold 1 has a cross section of the same shape as a whole, which is the first, second, third, and fourth plates 3b, 3b ', 3b ", and 3b' of the valve 3. It is a matter of course that both sides of the ") are rolled up to form a shape suitable for the space region of the first, second, third and fourth inlet holes 2a, 2b, 2c, and 2d.

이하 본 발명의 작동을 첨부된 도면을 참조로 상세히 설명한다.Hereinafter, the operation of the present invention will be described in detail with reference to the accompanying drawings.

본 발명은 밸브(3)를 완전히 전개시킬 때에도 엔진의 전개성능(Full Load Performance)이 향상되어 MTV가 없는 흡기매니폴드와 같이 동일한 성능을 갖는 한편, 밸브(3)를 완전히 닫을때에도 엔진의 연소실내 텀블유동이 강하게 형성되어 연소안정성이 높아지면서 LML(Lean Misfire Limit)이 연장되어 진다.The present invention improves the full load performance of the engine even when the valve 3 is fully deployed, and has the same performance as the intake manifold without MTV, while the engine 3 is completely closed even when the valve 3 is completely closed. As the tumble flow is formed strongly, the combustion stability increases, and the LML (Lean Misfire Limit) is extended.

즉, 본 발명의 밸브(3)는 도 6에 도시된 바와 같이 제1·2·3·4플레이트(3b,3b',3b",3b'")가 완전 열릴 때, 상기 제1·2·3·4플레이트(3b,3b',3b",3b'")가 흡기매니폴드(1)의 제1·2·3·4유입홀(2a,2b,2c,2d)의 하부 바닥면을 따라 밀착되는데 이에 따라, 전술한 종래의 경우와 같이 상기 플레이트(3b,3b',3b",3b'")가 유입홀(2a,2b,2c,2d)의 중심(O)상에 위치되어 그 두께로 인해 혼합기의 흐름을 방해하지 않게 되어 마치, 상기 흡기매니폴드(1)에 MTV 밸브(3)가 구비되지 않는 경우와 같은 엔진 성능을 나타내게 된다.That is, the valve 3 of the present invention is the first, second, and second plates when the first, second, third, and fourth plates 3b, 3b ', 3b ", 3b'" are fully opened as shown in FIG. 3 · 4 plates 3b, 3b ', 3b ", 3b'" are arranged along the bottom surface of the first, 2, 3, 4 inlet holes 2a, 2b, 2c, 2d of the intake manifold 1; As a result, the plates 3b, 3b ', 3b "and 3b'" are positioned on the center O of the inlet holes 2a, 2b, 2c and 2d as in the conventional case. This does not disturb the flow of the mixer, as shown in the engine performance as if the MTV valve 3 is not provided in the intake manifold (1).

또한, 본 발명의 상기 플레이트(3b,3b',3b",3b'")의 양쪽측면이 말아 올려져 제1·2·3·4유입홀(2a,2b,2c,2d)의 공간영역에 적합한 형상을 이루어 혼합기의 흐름을 방해 즉, 유동저항이 크거나 유동의 웨이브(Wave)특성이 변하지 않게 마치, 상기 흡기매니폴드(1)에 MTV 밸브(3)가 구비되지 않는 경우와 같은 엔진 성능을 나타낼 수 있게 됨은 물론이다.In addition, both sides of the plates 3b, 3b ', 3b ", 3b'" of the present invention are rolled up to the space regions of the first, second, third and fourth inlet holes 2a, 2b, 2c and 2d. Engine performance, such as the case where the MTV valve 3 is not provided in the intake manifold 1, does not interfere with the flow of the mixer by forming a suitable shape, that is, the flow resistance is large or the wave characteristics of the flow are not changed. Of course it can be represented.

한편, 상기 밸브(3)의 제1·2·3·4플레이트(3b,3b',3b",3b'")가 도 7에 도시된 바와 같이 완전 닫히는 경우에는, 상기 제1·2·3·4플레이트(3b,3b',3b",3b'")가 각각 제1·2·3·4유입홀(2a,2b,2c,2d)의 공간영역을 상부부위 소정 통로갭(L')만을 남겨두고 모두 차단하게 되고, 이에 따라 그 간격이 전술한 종래의 경우에 비해 상대적으로 작게 형성된 상기 통로갭(L')을 통해서 혼합기가 연소실로 강하고 빠르게 유입되므로 연소실내에서 강한 텀블을 형성하게 된다.On the other hand, when the 1, 2, 3, 4 plates 3b, 3b ', 3b ", 3b'" of the valve 3 are completely closed as shown in FIG. 7, the said 1, 2, 3 Four plates 3b, 3b ', 3b' and 3b '" respectively provide a space area of the first, second, third and fourth inflow holes 2a, 2b, 2c and 2d at a predetermined passage gap L'. All of them are blocked except for the bay, and thus the gap is relatively small compared to the above-described conventional case, so that the mixer is strongly and rapidly introduced into the combustion chamber, thereby forming a strong tumble in the combustion chamber. .

이와 같이 연소실내에서 강하게 형성되는 텀블은 일반적으로 알려진 바와 같이 연소안정성을 증가시키게 되고 이로 인해, 엔진의 LML(Lean Misfire Limit)이 연장되어짐은 물론이다.As such, the tumble strongly formed in the combustion chamber increases combustion stability, as is generally known, and as a result, the engine LML (Lean Misfire Limit) is extended.

이상 설명한 바와 같이 본 발명에 의하면, 흡기메니폴드의 혼합기 통로인 러너상에 구비된 MTV 밸브가 러너에 형성된 혼합기 통로인 유입홀의 공간 바닥쪽으로 위치되면서 유입홀의 단면 형상에 상응되어 완전 닫힘시 혼합기의 흐름을 방해하지 않도록 유입홀의 공간 저면부에 밀착되어져, 상기 밸브의 완전전개시 흐르는 혼합기의 유동저항을 저감함과 더불어 유동의 웨이브(Wave)특성을 변하시키지 않게 되므로 엔진의 전개성능(Full Load Performance)도 저하시키지 않는 효과가 있게 된다.As described above, according to the present invention, the MTV valve provided on the runner, which is the mixer passage of the intake manifold, is positioned toward the bottom of the space of the inlet hole, which is the mixer passage formed in the runner, and corresponds to the cross-sectional shape of the inlet hole, so that the flow of the mixer is completely closed. It is in close contact with the bottom of the space of the inlet hole so as not to interfere, reducing the flow resistance of the mixer flowing during the full deployment of the valve, and does not change the wave characteristics of the flow, so the full load performance of the engine is also reduced. There is an effect that does not reduce.

또한, 본 발명은 상기 밸브가 완전 닫히는 경우에는 유입홀의 상부부위 통로갭을 통해서 혼합기가 연소실로 강하고 빠르게 유입되므로 연소실내에서 강한 텀블을 형성해 엔진의 연소안정성을 증가시키면서 엔진의 LML(Lean Misfire Limit)을 연장시켜주는 효과가 있게 됨은 물론이다.In the present invention, when the valve is completely closed, the mixer flows into the combustion chamber quickly and rapidly through the upper gap passage gap of the inlet hole, thereby forming a strong tumble in the combustion chamber and increasing combustion stability of the engine while increasing the combustion stability of the engine. Of course, the effect is to extend.

Claims (1)

흡기메니폴드(1)의 혼합기 통로인 러너의 흡입포트(2)를 이루는 다수의 제1·2·3·4유입홀(2a,2b,2c,2d)에 구비된 MTV 밸브(3)가 콘트롤러의 제어신호에 의해 작동되면서 제1·2·3·4유입홀(2a,2b,2c,2d)을 관통하는 샤프트(3a)와, 이 샤프트(3a)에 결합되어 제1·2·3·4유입홀(2a,2b,2c,2d)의 공간영역을 개·폐하는 제1·2·3·4플레이트(3b,3b',3b",3b'")로 이루어진 차량용 흡기매니폴드에 있어서,MTV valves (3) provided in a plurality of first, second, third and fourth inlet holes (2a, 2b, 2c, 2d) forming the intake port (2) of the runner, which is the mixer passage of the intake manifold (1), A shaft 3a which is operated by a control signal and passes through the first, second, third and fourth inlet holes 2a, 2b, 2c, and 2d, and is coupled to the shaft 3a and is connected to the first, second, third and fourth. In a vehicle intake manifold comprising first and second and third and fourth plates (3b, 3b ', 3b ", 3b'") that open and close the space areas of the inflow holes 2a, 2b, 2c, and 2d, 상기 샤프트(3a)가 갖는 샤프트중심(C)위치는 흡기포트(3)의 흡기포트중심(O)의 하부 바닥부위와 일치되게 형성되는 한편, 상기 제1·2·3·4플레이트(3b,3b',3b",3b'")는 그 양쪽측면이 각각 안쪽으로 말아 올려져 완만한 라운드형상을 이루어 제1·2·3·4유입홀(2a,2b,2c,2d)의 공간 형상에 상응하도록 된 것을 특징으로 하는 차량용 흡기매니폴드.The shaft center (C) position of the shaft (3a) is formed to coincide with the bottom bottom portion of the intake port center (O) of the intake port (3), while the first, second, third, and fourth plates (3b, 3b ', 3b ", 3b'") have both sides rolled up inward to form a smooth round shape to form the space of the first, second, third and fourth inlet holes 2a, 2b, 2c and 2d. Intake manifold for a vehicle, characterized in that corresponding.
KR1020020037503A 2002-06-29 2002-06-29 Intake manifold of vehicle KR20040003143A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949729U (en) * 1982-09-27 1984-04-02 日野自動車株式会社 Diesel engine intake system
JPH0267056A (en) * 1988-08-31 1990-03-07 Nec Corp Exchange remote centralized maintenance system
JPH046743U (en) * 1990-05-01 1992-01-22
JPH0510760U (en) * 1991-07-16 1993-02-12 日産工機株式会社 New Machituk governor valve device
JPH07174028A (en) * 1993-12-21 1995-07-11 Nissan Motor Co Ltd Intake device for internal combustion engine
KR20020052521A (en) * 2000-12-26 2002-07-04 이계안 Swirl control valve system for lean burn engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949729U (en) * 1982-09-27 1984-04-02 日野自動車株式会社 Diesel engine intake system
JPH0267056A (en) * 1988-08-31 1990-03-07 Nec Corp Exchange remote centralized maintenance system
JPH046743U (en) * 1990-05-01 1992-01-22
JPH0510760U (en) * 1991-07-16 1993-02-12 日産工機株式会社 New Machituk governor valve device
JPH07174028A (en) * 1993-12-21 1995-07-11 Nissan Motor Co Ltd Intake device for internal combustion engine
KR20020052521A (en) * 2000-12-26 2002-07-04 이계안 Swirl control valve system for lean burn engine

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