KR960034689A - OHC diesel engine - Google Patents

OHC diesel engine Download PDF

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Publication number
KR960034689A
KR960034689A KR1019960009669A KR19960009669A KR960034689A KR 960034689 A KR960034689 A KR 960034689A KR 1019960009669 A KR1019960009669 A KR 1019960009669A KR 19960009669 A KR19960009669 A KR 19960009669A KR 960034689 A KR960034689 A KR 960034689A
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South Korea
Prior art keywords
fuel injection
injection pump
engine
ohc
auxiliary
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KR1019960009669A
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Korean (ko)
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KR100378131B1 (en
Inventor
마코토 미하라
에이지 나카이
요시하루 오다
Original Assignee
와다 요시히로
마츠다 가부시키가이샤
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Publication of KR960034689A publication Critical patent/KR960034689A/en
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Publication of KR100378131B1 publication Critical patent/KR100378131B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/20—Multi-cylinder engines with cylinders all in one line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/10—Diamond configuration of valves in cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/20—SOHC [Single overhead camshaft]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis

Abstract

본 발명은 보조기구 구동밸브에 의해 구동되는 다수의 보조기구의 구동성능을 양호하게 유지하면서 연료분사 펌프와 다수의 보조기구의 엔진 한쪽으로의 집중배치를 실현함에 따라, 엔진의 길이방향과 적어도 엔진 하부에 있어서 폭 방향의 콤팩트화를 도모하는 OHC 디젤 엔진에 관한 것으로, 본 발명은 회전방향으로 다수의 계지부를 가지며 타이밍 편차를 방지하는 무단권회부재(17)를 통해 엔진출력축(19)에 의해 연료분사펌프(41)와 하나의 캠축(6)을 구동하도록 한 OHC 디젤 엔진에 있어서, 상기 연료분사펌프(41)를 캠 베어링부(10)를 구비한 실린더헤드(3)를 통해 적어도 기통중심선방향에 있어서 부분적으로 상기 실린더헤드(3)의 한쪽에 위치하도록 배치하는 한편, 상기 연료분사펌프(41)의 하부에 보조기구 구동벨트(18)를 통해 상기 엔진출력축(19)에 의해 구동되는 다수의 보조기구(42)(43)를 상하방향으로 병렬배치한 것이다. 이에 따라 다수의 보조기구(42)(43)가 엔진(1) 한쪽에서 상하방향으로 배치됨으로써, 예를 들면 이것들이 연료분사펌프(41)가 배치되어 있지 않은 엔진(1)의 다른쪽에 배치되는 경우에 비해 적어도 엔진 하부에 있어서의 폭방향의 콤펙트화를 도모할 수 있는 것이다.The present invention realizes centralized placement of the fuel injection pump and a plurality of auxiliary mechanisms on one side of the engine while satisfactorily maintaining the driving performance of a plurality of auxiliary mechanisms driven by the auxiliary mechanism driving valve, The present invention relates to an OHC diesel engine which is compact in the width direction in the lower portion thereof. The present invention relates to an OHC diesel engine which has a plurality of engagement portions in the rotation direction and which is supported by an engine output shaft (19) via an endless winding member (17) An OHC diesel engine for driving a fuel injection pump (41) and a camshaft (6), characterized in that the fuel injection pump (41) is connected via a cylinder head (3) having a cam bearing part (10) And the fuel injection pump 41 is disposed below the fuel injection pump 41 so as to be located on one side of the cylinder head 3 in the direction of the engine output shaft 19, A plurality of auxiliary mechanisms 42 and 43 driven in a vertical direction are arranged in parallel. The plurality of auxiliary mechanisms 42 and 43 are arranged in the vertical direction on one side of the engine 1 so that they are arranged on the other side of the engine 1 in which the fuel injection pump 41 is not disposed It is possible to achieve compactness in the width direction at least in the lower portion of the engine as compared with the case of FIG.

Description

OHC 디젤 엔진OHC diesel engine

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

제1도는 본원 발명의 제1실시형태에 관한 OHC 디젤 엔진의 헤드커버를 제거한 상태에 있어서의 평면도이다. 제2도는 제1도의 Ⅱ-Ⅱ 요부단면도이다.FIG. 1 is a plan view of the OHC diesel engine according to the first embodiment of the present invention, with the head cover removed. FIG. FIG. 2 is a cross-sectional view of the main portion II-II of FIG.

Claims (13)

회전방향으로 다수의 계지부를 가지며 타이밍의 편차를 방지하는 무단권회부재를 통해 엔진출력측에 의해 연료분사펌프와 하나의 캠축을 구동하도록 한 OHC 디젤 엔진에 있어서, 상기 연료분사펌프를 캠베어링부를 구비한 실린더헤드를 통해 적어도 기통 중심선방향에 있어서 부분적으로 상기 실린더헤드의 한쪽에 위치하도록 배치하는 한편, 상기 연료분사펌프의 하부에 보조기구 구동밸브를 통해 상기 엔진출력축에 의해 구동되는 다수이 보조기구를 상하방향으로 병렬배치한 것을 특징으로 하는 OHC 디젤 엔진.An OHC diesel engine having a plurality of engagement portions in a rotation direction and driving a fuel injection pump and a single camshaft by an engine output side through an endless winding member preventing deviation of timing, characterized in that the fuel injection pump is provided with a cam bearing portion And a plurality of auxiliary mechanisms driven by the engine output shaft via an auxiliary mechanism drive valve are provided at the lower portion of the fuel injection pump so as to be located at the upper and lower sides of the cylinder head Wherein the first and second dampers are arranged in parallel to each other in the direction of the arrow. 제1항에 있어서, 상기 연료분사펌프가 실린더블록과 실린더헤드에 걸쳐서 가설되어 있는 브래킷을 통해 장착되어 있는 것을 특징으로 하는 OHC 디젤 엔진.The OHC diesel engine according to claim 1, wherein the fuel injection pump is mounted through a bracket that is straddled over the cylinder block and the cylinder head. 제1항 또는 제2항에 있어서, 상기 연료분사펌프로부터의 연료를 직접 연소실에 분사하는 연료분사밸브가 기통 중심위치에서 기통 중심선방향을 향해 배치됨과 동시에, 상기 연료분사펌프로부터 뻗어나온 연료통로의 일단이 상기 연료분사밸브의 상부 위치에 접속되어 있는 것을 특징으로 하는 OHC 디젤 엔진.The fuel injection valve according to claim 1 or 2, wherein a fuel injection valve for directly injecting the fuel from the fuel injection pump into the combustion chamber is disposed in the cylinder center line direction from the cylinder center position, and the fuel injection valve And one end thereof is connected to an upper position of the fuel injection valve. 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 연료분산펌프를 구동하는 무단권회부재를 톱니가 부착된 타이밍벨트로 하는 한편, 상기 연료분사펌프의 하부에 있어서, 상하방향으로 병렬배치된 상기 다수의 보조기구로서 상부측에 위치하는 제1보조기구와 하부측에 위치하는 제2보조기구가 구비되며, 상기 제1보조기구와 제2보조기구는 이들과 상기 엔진 출력축의 3자간에 걸쳐서 대체로 3각형상으로 감긴 보조기구 구동벨트에 의해 구동됨과 동시에, 상기 보조기구 구동벨트가 단일한 대체로 V자형상의 단면형상을 가진 V벨트인 것을 특징으로 하는 OHC 디젤 엔진.4. The fuel injection pump according to any one of claims 1 to 3, wherein the endless unwinding member for driving the fuel dispersion pump is a timing belt with teeth attached thereto, and the lower end of the fuel injection pump Wherein the first auxiliary mechanism and the second auxiliary mechanism are provided with a first auxiliary mechanism located on the upper side and a second auxiliary mechanism located on the lower side as the plurality of auxiliary mechanisms, Characterized in that the auxiliary device drive belt is a V-belt driven by an auxiliary device drive belt wound in a generally triangular shape and having a single generally V-shaped cross-sectional shape. 제4항에 있어서, 상기 엔진 출력축에 자동변속기가 접속되는 한편, 상기 엔진 출력축과 상기 제1보조기구와 제2보조기구의 3자간에 걸쳐서 대체로 3각형상으로 감긴 상기 보조기구 구동벨트가 단일한 대체로 V자형상을 가진 다수개의 V벨트인 것을 특징으로 하는 OHC 디젤 엔진.5. The automatic transmission according to claim 4, characterized in that the automatic transmission is connected to the engine output shaft, and the auxiliary mechanism drive belt wound in a substantially triangular shape over the three axes of the engine output shaft and the first and second auxiliary mechanisms Wherein the V-belt is a plurality of V-belts having a generally V-shape. 제4항 또는 제5항에 있어서, 상기 연료분사펌프를 1개의 타이밍벨트로 구동하는 한편, 상기 제1보조기구와 제2보조기구를 상기 연료분사펌프의 하부에만 배치함과 동시에, 상기 제1보조기구와 제2보조기구를 이들과 상기 엔진출력축 사이에 대체로 3각형상으로 감기며 대체로 3각형상의 하나의 궤적을 그리는 상기 보조기구 구동벨트에 의해 구동하는 것을 특징으로 하는 OHC 디젤 엔진.The fuel injection pump according to claim 4 or 5, wherein the fuel injection pump is driven by one timing belt, and the first auxiliary mechanism and the second auxiliary mechanism are disposed only below the fuel injection pump, Characterized in that the auxiliary mechanism and the second auxiliary mechanism are driven by the auxiliary mechanism drive belt which is wound in a generally triangular shape between these and the engine output shaft and which draws one locus of a generally triangular shape. 제1항 내지 제6항 중 어느 한 항에 있어서, 상기 차체에 대해 상기 엔진 출력축의 축방향을 차폭방향을 향해 탑재하는 한편, 상기 연료분사펌프의 상하방향에 있어서의 높이 위치를 상기 무단권회부재의 상기 캠축과 상기 연료분사펌프 사이에 있어서의 장설 라인이 엔진 상부에 위치하는 본네트 라인과 대체로 평행이 되도록 설정함과 동시에, 상기 연료분사펌프의 하부에 상기 다수의 보조기구를 배치한 것을 특징으로 하는 OHC 디젤 엔진.7. The fuel injection pump according to any one of claims 1 to 6, wherein an axial direction of the engine output shaft is mounted with respect to the vehicle body in a vehicle width direction, and a height position in a vertical direction of the fuel injection pump Is set to be substantially parallel to the bonnet line located on the engine top, and a plurality of auxiliary mechanisms are disposed below the fuel injection pump OHC diesel engine. 제1항 내지 제7항 중 어느 한 항에 있어서, 상기 캠축으로서 기를 중심선에 대해 상기 실린더헤드의 폭방향 한쪽으로 편위배치된 1개의 캠축만을 구비함과 동시에, 상기 캠축의 반편위축에 상기 연료분사펌프를 배치하고, 상기 연료분사펌프와 상기 캠축 사이에 상기 무단권부재가 감겨있는 것을 특징으로 하는 OHC 디젤 엔진.The fuel injection control device according to any one of claims 1 to 7, characterized in that the camshaft is provided with only one camshaft disposed on one side of the cylinder head in the width direction of the cylinder head with respect to the center line, And an endless member is wound between the fuel injection pump and the camshaft. 제1항 내지 제7항 중 어느 한 항에 있어서, 상기 캠축으로서 상기 실린더헤드의 폭방향으로 적당히 이간되어 평행배치된 2개의 캠축을 구비함과 동시에, 상기 2개의 캠축중 상기 연료분사펌프에서 먼 위치에 있는 캠축과 상기 연료분사펌프 사이에 상기 무단권회부재가 감겨있는 것을 특징으로 하는 OHC 디젤 엔진.The fuel injection pump according to any one of claims 1 to 7, further comprising: two cam shafts arranged as parallel to each other in the width direction of the cylinder head as the camshaft, Wherein the endless winding member is wound between a camshaft at a position where the fuel injection pump is disposed and the fuel injection pump. 제4항 내지 제9항 중 어느 한 항에 있어서, 상기 타이밍 벨트는 상기 엔진출력축과 캠축과 워터펌프와 연료분사펌프에 감겨서 상기 캠축과 워터펌프와 연료분사펌프를 상기 엔진출력축에 의해 구동하고, 상기 V벨트는 상기 연료분사펌프이 하부에 배치된 상기 제1보조기구로서의 교류발전기와 상기 제2보조기구로서의 펌프레서와 상기 엔진출력축 사이에 감겨서 상기 교류발전기와 컴프레서를 상기 엔진출력축에 의해 구동하는 것을 특징으로 하는 OHC 디젤 엔진.10. The apparatus according to any one of claims 4 to 9, wherein the timing belt is wound around the engine output shaft, the camshaft, the water pump, and the fuel injection pump so that the camshaft, the water pump, and the fuel injection pump are driven by the engine output shaft , The V-belt is wound between an alternator as a first sub-mechanism disposed below the fuel injection pump, a pump lesser as the second sub-mechanism, and an engine output shaft to drive the alternator and the compressor by the engine output shaft Wherein the OHC diesel engine is a diesel engine. 제2항에 있어서, 상기 연료분사펌프를 상기 실린더블록 및 실린더헤드쪽으로 지지시키는 상기 브래킷에 엔진 마운트부재를 장착시키기 위한 엔진 마운트 장착시이트가 일체적으로 형성되어 있는 것을 특징으로 하는 OHC 디젤 엔진.The OHC diesel engine according to claim 2, wherein an engine mount mounting seat for mounting the engine mount member is integrally formed on the bracket for supporting the fuel injection pump toward the cylinder block and the cylinder head. 제11항에 있어서, 상기 브래킷에, 상기 실린더헤드내의 워터재킷과 연통하는 물통로가 상기 브래킷의 표면쪽에 팽출상태로 일체적으로 형성되어 있는 것을 특징으로 하는 OHC 디젤 엔진.12. The OHC diesel engine according to claim 11, wherein a water passage communicating with the water jacket in the cylinder head is integrally formed in the bracket in a bulged state on the surface side of the bracket. 제2항에 있어서, 상기 브래킷에 상기 V벨트에 의해 구동되는 보조기구를 지지하는 보조기구를 브래킷의 고정부가 일체적으로 형성되어 있는 것을 특징으로 하는 OHC 디젤 엔진.The OHC diesel engine according to claim 2, wherein an auxiliary mechanism for supporting an auxiliary mechanism driven by the V-belt is integrally formed on the bracket with a fixing portion of the bracket. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960009669A 1995-03-30 1996-03-30 OHC diesel engine KR100378131B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7378095 1995-03-30
JP95-73780 1995-03-30

Publications (2)

Publication Number Publication Date
KR960034689A true KR960034689A (en) 1996-10-24
KR100378131B1 KR100378131B1 (en) 2003-07-23

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