KR940003535B1 - Exhaust gas recirculation passage in engine cylinder head - Google Patents

Exhaust gas recirculation passage in engine cylinder head Download PDF

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Publication number
KR940003535B1
KR940003535B1 KR1019910023171A KR910023171A KR940003535B1 KR 940003535 B1 KR940003535 B1 KR 940003535B1 KR 1019910023171 A KR1019910023171 A KR 1019910023171A KR 910023171 A KR910023171 A KR 910023171A KR 940003535 B1 KR940003535 B1 KR 940003535B1
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Prior art keywords
exhaust gas
cylinder head
exhaust
passage
valve
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KR1019910023171A
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KR930013455A (en
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김태훈
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대우자동차 주식회사
김태구·알. 제이. 스트래미
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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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

내용 없음.No content.

Description

엔진 실린더 헤드의 배기가스 재순환 통로Exhaust gas recirculation passage in engine cylinder head

제1도는 본 발명의 구조단면 개략도.1 is a structural cross-sectional schematic diagram of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 슬로트 2 : 가스채취통로1: Slot 2: Gas collection passage

3 : 밸브입구측 통로 4 : 밸브출구측 통로3: valve inlet side passage 4: valve outlet side passage

5 : 가스·유입통로 6 : 분배통로5: gas inflow passage 6: distribution passage

7 : 밸브7: valve

본 발명은 차량용 엔진의 배기가스 재순환 장치를 구성함에 있어서 배기가스의 채취, 운반, 조절 및 공급하는 통로에 대한 것으로 엔진 주변의 공간이 다른 여러 장치들을 위해 단순화가 필요하고 엔진 실린더 헤드의 내부구조가 복잡한 조건에서 적용하기 적합한 엔진 실린더 헤드 일체형 배기가스 재순환 통로 구조에 관한 것이다.The present invention relates to a passage for collecting, transporting, regulating, and supplying exhaust gas in the configuration of an exhaust gas recirculation apparatus of a vehicle engine. An engine cylinder head integrated exhaust gas recirculation passage structure suitable for application in complex conditions.

즉, 배기가스중의 유해물질 저감을 위해 배기가스 재순환 장치를 적용하는, 차량용 엔진에 있어서 배기측으로부터 배기가스를 채취하여 흡기측으로 운반되어지는 통로를 전적으로 실린더 헤드 자체내에서 이루어지게 하고 배기가스 재순환 밸브도 실린더 헤드에 직접 또는 부착용 보조 블럭을 사용하여 장착하는 콤팩트화한 배기가스 재순환 통로이다.That is, in a vehicle engine, in which an exhaust gas recirculation device is applied to reduce harmful substances in the exhaust gas, a passage taken from the exhaust side and transported to the intake side is made entirely within the cylinder head itself, and the exhaust gas recirculation is performed. The valve is also a compact exhaust gas recirculation passage mounted directly to the cylinder head or using an attachment auxiliary block.

종래 배기가스 재순환 통로는 배기매니폴드에서 흡기매니폴드로 별개의 재순환을 배관한 것이어서 협소한 엔진 계통의 설계에 많은 애로를 가져왔다.Conventional exhaust gas recirculation passages are pipes for separate recirculation from exhaust manifolds to intake manifolds, which has led to many difficulties in the design of narrow engine systems.

본 발명은 이와 같은 종래의 결점을 제거코자 배기가스의 재순환 통로를 엔진 실린더 헤드에 형성시킨 것으로서 그 요지를 첨부도면에 의하여 상세히 설명하면 다음과 같다.The present invention is to form a recirculation path of the exhaust gas in the engine cylinder head in order to eliminate such a conventional defect as described in detail by the accompanying drawings as follows.

엔진 실린더 헤드의 개략적 단면을 나타내는 제1도에서 실린더 헤드의 배기포트로부터 나오는 재순환용 배기가스를 채취하기 위해 배기관에 슬로트(1)를 내고 실린더 헤드(H)에는 배기면(가)에 수직으로 가스채취통로(2)를 설치한다.In FIG. 1 showing a schematic cross section of the engine cylinder head, a slot 1 is provided in the exhaust pipe to collect recirculation exhaust gas from the exhaust port of the cylinder head, and the cylinder head H is perpendicular to the exhaust surface a. Install the gas collection passage (2).

재순환되는 배기가스의 유량조절을 위해 밸브장착면(나)에 수직으로 밸브입구측통로(3)와 밸브출구측 통로(4)를 둔다.The valve inlet side passage 3 and the valve outlet side passage 4 are placed perpendicular to the valve mounting surface (b) to adjust the flow rate of the recycled exhaust gas.

유량조절된 배기가스의 재연소를 위해 재순환 배기가스가 흡기측으로 보내어지도록 흡기면(다)에 수직으로 가스·유입통로(5)를 내고 흡기관에는 분배통로(6)를 설치하여 통로(3)와 통로(4)에 밸브(7)를 경유시킨 구조이다.Gas and inflow passages (5) are provided perpendicular to the intake surface (C) so that recycled exhaust gas is sent to the intake side for recombustion of the flow-controlled exhaust gas, and a distribution passage (6) is provided in the intake pipe (3) And the passage 4 via the valve 7.

첨부도면의 화살표는 배기가스의 유동 방향을 나타낸다.Arrows in the accompanying drawings indicate the flow direction of the exhaust gas.

이와 같이 된 본 발명은 차량용 엔진의 배기가스중 유해물질 저감을 위해 배기가스 재순환 장치를 적용하는 경우에 있어서 배기측으로부터 재순환용 배기가스를 채취하여 흡기측으로 운반하는 통로를 전적으로 실린더 헤드(H) 내부에서 이루어지게 되고 이 재순환 과정에서 배기가스의 유량을 조절하는 배기가스 재순환 밸브(7)도 실린더 헤드에 직접 장착하거나 부착용 보조 블럭을 사용하여 여기에 장착되게 하는 것이다.According to the present invention as described above, when the exhaust gas recirculation apparatus is applied to reduce harmful substances in the exhaust gas of the vehicle engine, a passage for collecting the recycle exhaust gas from the exhaust side and transporting it to the intake side is entirely inside the cylinder head (H). In this recirculation process, the exhaust gas recirculation valve 7 which regulates the flow rate of the exhaust gas is also mounted directly to the cylinder head or mounted here using an attachment auxiliary block.

엔진 실린더 헤드의 연소실에서 연소된 배기가스는 배기포트로 배출되는데 재순환용 배기가스는 여기서 배기관으로 흐르지 않고 배기관의 배기면(가)에 있는 슬로트(1)과 실린더 헤드면을 통해 채취되고 실린더 헤드내의 가스채취통로(2)를 따라 흐른다.The exhaust gas combusted in the combustion chamber of the engine cylinder head is discharged to the exhaust port. The exhaust gas for recirculation does not flow to the exhaust pipe here, but is collected through the slot 1 and the cylinder head surface on the exhaust surface of the exhaust pipe. It flows along the gas collection path 2 inside.

밸브입구측통로(3)로 배기가스 재순환밸브(7)로 들어오는 배기가스는 여기서 엔진 작동 조건에 따라 유량이 조절되고 다시 밸브출구측통로(4)와 가스유입통로(5)를 거쳐 흡기관의 분배통로(6)로 순환되어 각 실린더에 균일하게 분배되고 연소실에서 재연소가 이루어지게 되는 것이다.The exhaust gas entering the exhaust gas recirculation valve (7) through the valve inlet side passage (3) is controlled here according to the engine operating conditions, and again through the valve outlet side passage (4) and the gas inlet passage (5). Circulated to the distribution passage (6) is to be uniformly distributed to each cylinder and reburn in the combustion chamber is to be made.

그러므로 본 발명은 엔진에서 나오는 배기가스를 재순환 및 재연소시키는 과정을 전적으로 엔진 본체 내부에서 이루어지게 함으로써 차량에서 고온·고압의 재순환 배기가스가 흐르는 파이프들을 엔진 주변 공간에서 없애어 여러 주변 장치들을 쉽게 설치 및 보호할 수 있게 하며 특히 실린더방 4-밸브인 엔진의 경우는 그 실린더 헤드의 내부 구조가 복잡하게 되어 있는 것이 일반적인데 본 발명은 이를 콤팩트화 함과 동시에 엔진의 성능을 확보하면서 엔진 및 차량의 내구 수명을 향상시키는 효과가 있는 것이다.Therefore, the present invention makes the process of recirculating and re-burning the exhaust gas from the engine entirely inside the engine body, thereby eliminating the pipes in which the high-temperature and high-pressure recycle exhaust gas flows from the engine space from the engine surrounding space and easily installing various peripheral devices. And the engine, which is a four-valve cylinder, in particular, the internal structure of the cylinder head is complicated. In the present invention, the engine and the vehicle can be compacted and secured. It is effective to improve the durability life.

Claims (1)

엔진의 배기가스 재순환 장치를 구성함에 있어서, 배기관의 배기면(가)에 슬로트(1)를 내어 실린더 헤드 자체내의 배기면(가)에 가스채취통로(2)와 밸브장착면(나)에 밸브입구측통로(3) 및 밸브출구측통로(4)를 설치하고 실린더 헤드의 흡기면(다)에 가스유입통로(5)와 흡기관의 흡기면(다)에 분배통로(6)를 두어 엔진 연소실의 배기포트로 부터 나오는 재순환용 배기가스를 채취·운반하여 다시 연소실로 보내어 재연소시키며 이 과정의 가스유량 조절용 배기가스 재순환밸브(7)도 실린더헤드의 밸브장착면(나)에 직접 또는 부착용 보조 블럭을 사용하여 장착하는 것을 특징으로 하는 “엔진 실린더 헤드”의 배기가스 재순환 통로.In constructing the exhaust gas recirculation apparatus of the engine, a slot 1 is placed on the exhaust surface of the exhaust pipe and the gas exhaust passage 2 and the valve mounting surface on the exhaust surface of the cylinder head itself. The valve inlet side passage (3) and the valve outlet side passage (4) are provided, and the gas inlet passage (5) is provided on the intake surface (C) of the cylinder head and the distribution passage (6) is provided on the intake surface (C) of the intake pipe. The exhaust gas for recirculation from the exhaust port of the engine combustion chamber is collected and transported to the combustion chamber for recombustion. The exhaust gas recirculation valve (7) for adjusting the gas flow rate in this process is also directly on the valve mounting surface (b) of the cylinder head. Exhaust gas recirculation passage of an "engine cylinder head" characterized by mounting using an attachment auxiliary block.
KR1019910023171A 1991-12-17 1991-12-17 Exhaust gas recirculation passage in engine cylinder head Expired - Fee Related KR940003535B1 (en)

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KR1019910023171A KR940003535B1 (en) 1991-12-17 1991-12-17 Exhaust gas recirculation passage in engine cylinder head

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KR1019910023171A KR940003535B1 (en) 1991-12-17 1991-12-17 Exhaust gas recirculation passage in engine cylinder head

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KR940003535B1 true KR940003535B1 (en) 1994-04-23

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100897105B1 (en) * 2007-11-07 2009-05-14 현대자동차주식회사 Cylinder head structure of the engine
US8210157B2 (en) 2008-12-05 2012-07-03 Hyundai Motor Company Exhaust gas recirculation system with unified cylinder head and exhaust gas recirculation device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100897105B1 (en) * 2007-11-07 2009-05-14 현대자동차주식회사 Cylinder head structure of the engine
US8210157B2 (en) 2008-12-05 2012-07-03 Hyundai Motor Company Exhaust gas recirculation system with unified cylinder head and exhaust gas recirculation device

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Publication number Publication date
KR930013455A (en) 1993-07-21

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