WO2011134380A1 - 汽缸头气门布置结构及包括其的风冷柴油机 - Google Patents

汽缸头气门布置结构及包括其的风冷柴油机 Download PDF

Info

Publication number
WO2011134380A1
WO2011134380A1 PCT/CN2011/073285 CN2011073285W WO2011134380A1 WO 2011134380 A1 WO2011134380 A1 WO 2011134380A1 CN 2011073285 W CN2011073285 W CN 2011073285W WO 2011134380 A1 WO2011134380 A1 WO 2011134380A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
cylinder head
valve
diesel engine
exhaust
Prior art date
Application number
PCT/CN2011/073285
Other languages
English (en)
French (fr)
Inventor
景华阳
刘荣利
洪方平
付强
Original Assignee
隆鑫通用动力股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 隆鑫通用动力股份有限公司 filed Critical 隆鑫通用动力股份有限公司
Publication of WO2011134380A1 publication Critical patent/WO2011134380A1/zh

Links

Classifications

    • 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
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/28—Cylinder heads having cooling means for air cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P1/00—Air cooling
    • F01P1/02—Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
    • 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
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4285—Shape or arrangement of intake or exhaust channels in cylinder heads of both intake and exhaust channel

Definitions

  • the invention relates to the field of small air-cooled diesel engines, and in particular to a valve arrangement structure of an air-cooled diesel engine and a steam head thereof.
  • BACKGROUND OF THE INVENTION Generally, an intake and exhaust valve of a cylinder head in a small air-cooled diesel engine are arranged along a straight line parallel to a crankshaft axis, that is, an intake valve provided at an intake passage and an exhaust valve provided at an exhaust passage. The center line is parallel to the crankshaft axis, and the set cooling duct passes through the intake valve.
  • the structure is such that the intake valve and the exhaust valve are solid parts of the cylinder head, and the cooling air passage is not parallel to the crankshaft axis, and the cooling air forms a cooling and cooling of the entity at the intake valve from the cooling air passage to the intake valve. , then bypass the exhaust valve and flow out. Since the center line of the intake and exhaust valves is parallel to the crankshaft axis and the exhaust valve is behind the intake valve, the area near the exhaust valve is almost a cooling dead angle, and effective cooling and cooling cannot be obtained, so that the steam head The overall cooling effect is seriously affected, which in turn causes the cooling and cooling of the inlet and exhaust valves of the existing air-cooled diesel engine to be unbalanced, and the difference in valve movement increases, which affects the performance of the diesel engine.
  • An object of the present invention is to provide a valve arrangement structure of an air-cooled diesel engine and a cylinder head thereof, so as to solve the problem that the vicinity of the exhaust valve of the cylinder head cannot be effectively cooled and cooled, and the overall cooling of the gas head is affected. The problem of the effect.
  • a valve arrangement structure for a cylinder head of an air-cooled diesel engine is provided.
  • the intake and exhaust passages on the cylinder head of the air-cooled diesel engine are respectively located on opposite sides of the cylinder head, and the crankshaft of the air-cooled diesel engine
  • the axial direction is opposite to the direction of intake and exhaust of the steam head
  • the intake valve is provided with an intake valve
  • the exhaust passage is provided with an exhaust valve
  • the center line of the intake valve and the exhaust valve is axially inclined to the crankshaft. Interlaced to form an angle
  • the cylinder head is provided with a first cooling air passage penetrating through the cylinder head body in the intake and exhaust direction, and the first cooling air passage passes through the middle of the intake valve and the exhaust valve.
  • the cylinder head is further provided with a second cooling air passage penetrating through the cylinder head body in the intake and exhaust direction, the second cooling air passage and the exhaust valve are located on the same side of the first cooling air passage, and the exhaust valve is located at the same Between the cooling duct and the first cooling duct.
  • the cylinder head is further provided with a third cooling air passage penetrating through the cylinder head body in the intake and exhaust direction, the third cooling air passage and the intake valve are located on the same side of the first cooling air passage, and the intake valve is located at the same Between the three cooling air ducts and the first cooling air duct.
  • the air inlet ends of the first cooling air passage, the second cooling air passage and the second cooling air passage correspond to the air guiding hood provided on the air-cooled diesel engine.
  • an acute angle ⁇ in an angle formed by the center line connecting the intake valve and the exhaust valve and the axial oblique direction of the crankshaft is 10° to 80°.
  • the air inlet ends of the first cooling air duct and the second cooling air duct are a common air inlet, and the air outlet ends are respectively the respective air outlets.
  • the air outlet end of the first cooling air duct is turned out after being turned at the exhaust valve.
  • the third cooling air duct is located between the intake valve and the tappet chamber of the cylinder head.
  • an air-cooled diesel engine comprising the valve arrangement structure of the air-cooled diesel engine cylinder head described above.
  • the cooling air passes through the cylinder head from the first cooling air passage, so that the intake valve and the exhaust valve can be effectively cooled, and the cooling air cooling around the exhaust valve of the original air-cooled diesel engine is eliminated. Cooling blind spots greatly improve the overall cooling effect of the cylinder head. Moreover, the center line between the intake valve and the exhaust valve is obliquely staggered with the axial direction of the crankshaft, which facilitates the casting or drilling of the cooling air passage extending axially along the crankshaft on the steam head, so that the cooling wind The shaping or processing of the road is easier to achieve.
  • the cylinder head is provided with a plurality of second cooling air passages and a third cooling air passage extending through the solid portion of the cylinder head in the intake and exhaust direction, and the second cooling air passage and the exhaust valve are located in the first cooling The same side of the air duct, and the exhaust valve is located between the second cooling air duct and the first cooling air duct; the third cooling air duct and the intake valve are located on the same side of the first cooling air duct, and the intake valve is located at the same Between the three cooling air ducts and the first cooling air duct, the cooling air from the jt ⁇ can be passed from the three cooling air passages through between the inlet and the fourth valve and on both sides, thereby enhancing the overall cooling effect of the steam head.
  • the air inlet ends of the first cooling air duct and the second cooling air duct are a common air inlet, and the air outlet ends are respectively respective air outlets, which can increase the first cooling air passage and the second air passage.
  • the air outlet end of the first cooling air duct is turned out after being turned at the exhaust valve, so that the cooling air of the middle cooling air passage can directly reach the exhaust valve, thereby enhancing the cooling effect at the exhaust valve, thereby enabling The movement of the intake and exhaust valves is ensured to further improve the performance of the diesel engine.
  • FIG. 1 is a schematic partial cross-sectional view showing a valve arrangement structure of an air-cooled diesel engine and a cylinder head thereof according to the present invention
  • FIG. 2 is a schematic side sectional view showing a steam head of the present invention. .
  • 1 is the crankshaft
  • 2 is the cylinder head
  • 3 is the muffler
  • 4 is the starter
  • 5 is the air filter
  • 6 is the fuel tank
  • 7 is the air hood
  • 8 is the first cooling air duct
  • 9a is the second cooling Air duct
  • 9b is the third cooling air duct
  • 10 is the air inlet
  • 11 is the exhaust duct
  • 12 is the air deflector
  • 13 is the connecting bolt
  • 14 is the exhaust valve
  • 15 is the intake valve
  • 16 is the tappet room.
  • FIG. 1 a top plan view of a valve arrangement of a cylinder head of an air-cooled diesel engine in accordance with the present invention is schematically illustrated.
  • the air-cooled diesel engine includes a crankcase (not shown) and a cylinder head 2.
  • the cylinder head 2 is mounted above the crankcase body.
  • the solid part of the cylinder head 2 is provided with a plurality of mounting holes, and the cylinder head is connected to the crankcase body through the mounting holes through the connecting bolts 13.
  • a crankshaft 1 is disposed in the crankcase body, and the crankshaft 1 protrudes from the side of the crankcase body. As can be seen from FIG.
  • the first side of the crankcase body is equipped with a muffler 3, and the first side of the crankcase body is opposite to the first side.
  • a fuel tank 6 is mounted on both sides, and a third side of the crankcase body (the side corresponding to the intake port 10 of the cylinder head 2) is provided with a starter 4 and an air filter 5, and the air filter 5 is located above the starter 4.
  • An air guiding cover 7 is installed between the air filter 5 and the cylinder head 2. The air guiding cover 7 guides the cooling air formed by the rotation of the wind wheel to the side of the steam head.
  • the air-cooled diesel engine has an intake passage 10 and an exhaust passage 11 on the steam head 2, and the intake passage 10 and the exhaust passage 11 are respectively located on opposite sides of the cylinder head 2, and the crankshaft 1 of the diesel engine is axially and continuously arranged.
  • the gas direction is the same direction.
  • the intake passage 10 communicates with the air filter 5, and a flow guide cover 12 is further mounted outside the exhaust passage 11, and the heat of the cylinder head is transmitted to the flow guide cover 12, and is cooled by the cooling air to cool down.
  • An intake valve 15 is disposed on the intake passage 10, and an exhaust valve 14 is disposed on the exhaust passage 11, and a center connection between the intake valve 15 of the intake passage and the exhaust valve 14 disposed at the exhaust passage
  • the line and the axial direction of the crankshaft 1 are obliquely staggered to form an angle such that both the intake valve 15 and the exhaust valve 14 can face the shroud 12 to prevent the exhaust valve 14 from being blocked by the intake valve 15.
  • the air intake valve 15 and the exhaust valve 14 can be effectively cooled, thereby eliminating the existence of the existing air-cooled diesel engine exhaust valve.
  • the cooling air cooling and cooling blind spots greatly improve the overall cooling effect of the cylinder head, and the formation or processing of the cooling air duct is easier to realize.
  • the cylinder head 2 is provided with a plurality of cooling ducts extending through the solid portion of the cylinder head in the direction of intake and exhaust, in addition to the first cooling duct 8, for example, in FIG.
  • a side of the exhaust valve 14 facing away from the first cooling air duct 8 is provided with a second cooling air duct 9a extending through the cylinder head body, and a side of the intake valve 15 facing away from the first cooling air duct 8 is provided with a through-cylinder head entity.
  • the third cooling air duct 9b, the air inlet end of each cooling air duct corresponds to the air guiding hood 7 provided on the air-cooled diesel engine, and the cooling air drawn from the air guiding hood 7 can be cooled from the first cooling air duct 8 and the second cooling air duct
  • the three cooling air passages of the air duct 9a and the third cooling air duct 9b pass through the cylinder head entities between the intake and exhaust valves and on both sides, thereby enhancing the overall cooling effect of the cylinder head, so that the entire cylinder head solid portion can be obtained. Fully cooled.
  • the angle between the acute angle ⁇ in the angle formed by the center line between the intake valve 15 and the exhaust valve 14 and the axially oblique direction of the crankshaft is in the range of 10. ⁇ 80.
  • the air inlet ends of the second cooling air duct 9a and the first cooling air duct 8 may be a common air inlet, and the air outlet ends are respectively respective air outlets, which can increase The amount of air entering the second cooling duct and the first cooling duct.
  • the first cooling air passage 8 is turned out after being turned at the exhaust valve 14, so that the cooling air of the first cooling air passage 8 can directly reach the exhaust valve 14, and the cooling effect at the exhaust valve 14 is enhanced.
  • the third cooling air duct 9b is disposed between the intake valve 15 and the tappet chamber 16 of the cylinder head.
  • the invention also provides an air-cooled diesel engine using the valve arrangement structure of the cylinder head of the air-cooled diesel engine provided by the invention.
  • the cooling air is taken out by the air guiding hood 7, and the air inlet 10 and the tappet chamber 16 are partially cooled via the third cooling air passage 9b, and the fuel nozzle and the exhaust portion are partially cooled by the second cooling air passage 9a.
  • the other portion of the passage 11 passes through the cylinder head entity between the intake valve 15 and the exhaust valve 14 through the first cooling passage 8, so that the entire cylinder head can be sufficiently cooled.

Landscapes

  • 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)

Description

汽缸头气门布置结构及包括其的风冷柴油机 技术领域 本发明涉及小型风冷柴油机领域， 具体涉及一种风冷柴油机及其汽虹头的 气门布置结构。 背景技术 通常， 小型风冷柴油机中汽缸头的进气门与排气门沿一条平行于曲轴轴线 的直线布置， 即设于进气道的进气门和设于排气道的排气门的中心连线与曲轴 轴线平行， 设置的冷却风道于进气门处经过。 这种结构使进气门与排气门之间 是汽缸头实体部分， 冷却风道不与曲轴轴线平行， 冷却风从冷却风道至进气门 处形成对进气门处实体的风冷降温， 然后绕过排气门流出。 由于进气门和排气 门的中心连线与曲轴轴线平行且排气门在进气门的后面， 所以排气门附近区域 几乎成为冷却死角， 无法得到有效的冷却降温， 使得汽虹头的整体冷却效果受 到严重影响， 进而造成现有的风冷柴油机的进、 排气门的冷却降温不均衡， 气 门运动的差异增大， 影响柴油机的性能。 发明内容 本发明的目的是提供一种风冷柴油机及其汽缸头的气门布置结构， 以解决 现有技术中汽缸头的排气门附近区域无法得到有效的冷却降温、 影响气虹头的 整体冷却效果的问题。 根据本发明的一个方面， 提供了一种风冷柴油机汽缸头的气门布置结构， 风冷柴油机汽缸头上的进气道和排气道分别位于汽缸头相对的两侧， 且风冷柴 油机的曲轴轴向与汽虹头的进排气方向同向， 进气道上设有进气门， 排气道上 设有排气门， 进气门和排气门的中心连线与曲轴的轴向斜向交错形成夹角； 汽 缸头上设置有沿进排气方向贯穿汽缸头实体的第一冷却风道， 且第一冷却风道 从进气门和排气门的中间穿出。 进一步地， 汽缸头上还设置有沿进排气方向贯穿汽缸头实体的第二冷却风 道， 第二冷却风道与排气门位于第一冷却风道的同一侧， 且排气门位于第二冷 却风道和第一冷却风道之间。 进一步地， 汽缸头上还设置有沿进排气方向贯穿汽缸头实体的第三冷却风 道， 第三冷却风道与进气门位于第一冷却风道的同一侧， 且进气门位于第三冷 却风道和第一冷却风道之间。 进一步地， 第一冷却风道、 第二冷却风道和第二冷却风道的进风端均对应 风冷柴油机上设置的导风罩。 进一步地， 进气门和排气门的中心连线与曲轴的轴向斜向交错形成的夹角 中的锐角 α为 10°〜 80°。 进一步地， 第一冷却风道和第二冷却风道的进风端为共同的一个进风口， 出风端分别为各自的出风口。 进一步地， 第一冷却风道的出风端于排气门处转弯后穿出。 进一步地， 第三冷却风道位于进气门与汽缸头的挺杆室之间。 进一步地， 排气道的外侧还安装有导流罩。 才艮据本发明的另一个方面， 还提供了一种风冷柴油机， 包括上述的风冷柴 油机汽缸头的气门布置结构。 由于釆用上述技术方案， 通过改变进、 排气门在汽缸头上的布置， 设于进 气道的进气门和设于排气道的排气门之间的中心连线与曲轴的轴向斜向交错 形成夹角， 使进气门和排气门之间具有了可以设置沿曲轴轴向 （与汽缸头的进 排气方向相同）延伸以贯穿汽缸头实体的第一冷却风道的位置， 冷却风从第一 冷却风道穿过汽缸头， 使进气门、 排气门周围都能得到有效冷却， 消除了原有 风冷柴油机排气门周围存在的得不到冷却的风冷降温盲点， 极大地提高了汽缸 头的整体冷却效果。 而且， 进气门和排气门之间的中心连线与曲轴轴向斜向交 错， 有利于在汽虹头上沿曲轴轴向延伸的冷却风道的铸造成型或钻孔加工， 使 冷却风道的成型或加工更加容易实现。 作为本发明的进一步改进， 在汽缸头设有多个沿进排气方向贯穿汽缸头实 体部分的第二冷却风道和第三冷却风道， 第二冷却风道与排气门位于第一冷却 风道的同一侧， 且排气门位于第二冷却风道和第一冷却风道之间； 第三冷却风 道与进气门位于第一冷却风道的同一侧， 且进气门位于第三冷却风道和第一冷 却风道之间， 由 jt匕冷却风可以从三个冷却风道穿过进、 4 气门之间和两侧， 加 强了汽虹头整体的冷却效果。 作为本发明的进一步改进， 第一冷却风道和第二冷却风道的进风端为共同 的一个进风口， 出风端分别为各自的出风口， 能增大第一冷却风道和第二冷却 风道的进风量。 另外， 第一冷却风道的出风端于排气门处转弯后穿出， 使中冷 却风道的冷却风能够直接抵达排气门处， 加强了排气门处的降温效果， 由此能 保证进、 排气门的运动均衡， 进一步地提高柴油机的性能。 附图说明 构成本发明的一部分的附图用来提供对本发明的进一步理解， 本发明的示 意性实施例及其说明用于解释本发明， 并不构成对本发明的不当限定。 在附图 中： 附图 1示意性示出了本发明的风冷柴油机及其汽缸头的气门布置结构的俯 视结构局部剖视图； 附图 2示意性示出了本发明中汽虹头的侧面剖视图。 附图中， 1为曲轴， 2为汽缸头， 3为消声器， 4为启动器， 5为空滤器， 6 为油箱， 7为导风罩， 8为第一冷却风道， 9a为第二冷却风道， 9b为第三冷却 风道， 10为进气道， 11为排气道， 12为导流罩， 13为连接螺栓， 14为排气门， 15为进气门， 16为挺杆室。 具体实施方式 需要说明的是， 在不冲突的情况下， 本申请中的实施例及实施例中的特征 可以相互组合。 下面将参考附图并结合实施例来详细说明本发明。 参照附图 1 , 示意性示出了根据本发明的风冷柴油机汽缸头的气门布置结 构的俯视结构。 风冷式柴油机包括曲轴箱体 （图中未标出） 与汽缸头 2。 汽缸 头 2安装在曲轴箱体的上方， 汽缸头 2实体部分设有若千安装孔， 通过连接螺 栓 13穿过安装孔把汽缸头与曲轴箱体连接安装。 曲轴箱体内设有曲轴 1 , 曲轴 1从曲轴箱体侧面伸出， 由图 1 中可以看出， 曲轴箱体的第一侧安装有消声器 3 , 曲轴箱体的与第一侧相对的第二侧安装有油箱 6, 曲轴箱体的第三侧（对应 汽缸头 2进气道 10的一侧）安装有启动器 4和空滤器 5 , 空滤器 5位于启动器 4上方。 空滤器 5与汽缸头 2之间安装有导风罩 7, 导风罩 7把风轮旋转形成 的冷却风引流到汽虹头侧面。 该风冷式柴油机的汽虹头 2上具有进气道 10和排气道 11 ,进气道 10和排 气道 11分别位于汽缸头 2相对的两侧， 柴油机的曲轴 1轴向与进排气方向同 向。 进气道 10与空滤器 5连通， 排气道 11外进一步地安装有导流罩 12 , 汽缸 头的热量传递到导流罩 12上， 由冷却风冷却降温。 进气道 10上设有进气门 15 , 排气道 11上设有排气门 14 , 设于进气道的 进气门 15和设于排气道的排气门 14之间的中心连线与曲轴 1的轴向斜向交错 形成夹角， 使进气门 15与排气门 14都能正对导流罩 12 , 避免排气门 14被进 气门 15遮挡。 这样， 根据本发明的技术方案， 通过改变进气门 15和排气门 14 在汽虹头 2上的设置位置， 从而可以在汽虹头 2上设置沿进排气方向贯穿汽虹 头实体的第一冷却风道 8 , 且第一冷却风道 8从进气门 15和排气门 14的中间 穿出。 这样,冷却风从第一冷却风道 8穿过汽缸头 2时， 使进气门 15、 排气门 14周围都能得到有效冷却，消除了原有风冷柴油机排气门周围存在的得不到冷 却的风冷降温盲点， 极大地提高了汽缸头的整体冷却效果， 且冷却风道的成型 或加工更加容易实现。 由图 1中可以看出， 优选地， 汽缸头 2除第一冷却风道 8之外还设有多个 沿进排气方向贯穿汽缸头实体部分的冷却风道， 例如在图 1 中， 在排气门 14 背离第一冷却风道 8的一侧开设有贯穿汽缸头实体的第二冷却风道 9a,在进气 门 15背离第一冷却风道 8的一侧开设有贯穿汽缸头实体的第三冷却风道 9b, 各冷却风道的进风端均对应风冷柴油机上设置的导风罩 7 , 从导风罩 7引流出 的冷却风可以从第一冷却风道 8、 第二冷却风道 9a和第三冷却风道 9b这三个 冷却风道穿过进、 排气门之间和两侧的汽缸头实体， 加强了汽缸头整体的冷却 效果， 使整个汽缸头实体部分能够得到充分的冷却。 优选地， 进气门 15和排气门 14之间的中心连线与曲轴的轴向斜向交错形 成的夹角中的锐角 α的角度范围为 10。〜80。， 以便于开设第一冷却风道 8。优选 地， 由图 1 中可以看出， 第二冷却风道 9a和第一冷却风道 8的进风端可以为 共同的一个进风口， 出风端分别为各自的出风口， 这样能增大第二冷却风道和 第一冷却风道的进风量。 优选地， 第一冷却风道 8于排气门 14处转弯后穿出， 使第一冷却风道 8的冷却风能够直接抵达排气门 14处， 加强排气门 14处的冷 却效果。 优选地， 为便于开设第三冷却风道 9b, 第三冷却风道 9b设置在进气 门 15与汽缸头的挺杆室 16之间。 本发明还提供了一种风冷柴油机， 应用有本发明所提供的风冷柴油机汽缸 头的气门布置结构。 该风冷柴油机工作时， 冷却风由导风罩 7引出， 部分经由第三冷却风道 9b 冷却进气道 10和挺杆室 16, 部分通过第二冷却风道 9a冷却喷油嘴、 排气道 11 , 另一部分通过第一冷却风道 8贯穿进气门 15与排气门 14之间的汽缸头实 体， 使得整个汽缸头能够得到充分的冷却。 以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本领 域的技术人员来说， 本发明可以有各种更改和变化。 凡在本发明的 ^"神和原则 之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之 内。

Claims

权 利 要 求 书
1. 一种风冷柴油机汽虹头的气门布置结构， 所述风冷柴油机汽虹头（2)上 的进气道 （ 10) 和排气道 （ 11 ) 分别位于所述汽虹头 （2) 相对的两侧， 且所述风冷柴油机的曲轴（ 1 )轴向与所述汽虹头的进排气方向同向， 所 述进气道（ 10 )上设有进气门（ 15 ),所述排气道（ 11 )上设有排气门（ 14 ), 其特征在于，
所述进气门 （ 15 ) 和所述排气门 （ 14) 的中心连线与所述曲轴 （ 1 ) 的轴向斜向交错形成夹角；
所述汽缸头（ 2 )上设置有沿进排气方向贯穿汽缸头实体的第一冷却 风道（ 8 ), 且所述第一冷却风道（ 8 )从所述进气门 （ 15 )和所述排气门 ( 14) 的中间穿出。
2. 根据权利要求 1所述的风冷柴油机汽缸头的气门布置结构，其特征在于， 所述汽缸头（2 )上还设置有沿进排气方向贯穿所述汽缸头实体的第二冷 却风道（9a), 所述第二冷却风道（9a) 与所述排气门 （ 14)位于所述第 一冷却风道（8) 的同一侧， 且所述排气门 （ 14)位于所述第二冷却风道
( 9a ) 和所述第一冷却风道 （ 8 ) 之间。
3. 根据权利要求 2所述的风冷柴油机汽缸头的气门布置结构，其特征在于， 所述汽缸头（2 )上还设置有沿进排气方向贯穿所述汽缸头实体的第三冷 却风道（ 9b ), 所述第三冷却风道（ 9b )与所述进气门 （ 15 )位于所述第 一冷却风道（8) 的同一侧， 且所述进气门 （ 15 )位于所述第三冷却风道
( 9b ) 和所述第一冷却风道 (8) 之间。
4. 根据权利要求 3所述的风冷柴油机汽缸头的气门布置结构，其特征在于， 所述第一冷却风道（8)、 第二冷却风道（9a)和所述第三冷却风道（9b) 的进风端均对应所述风冷柴油机上设置的导风罩 （ 7 )„
5. 根据权利要求 1所述的风冷柴油机汽缸头的气门布置结构，其特征在于， 所述进气门 （ 15 )和所述排气门 （ 14 ) 的中心连线与所述曲轴（ 1 ) 的轴 向斜向交错形成的夹角中的锐角 α为 10°〜80°。 根据权利要求 2所述的风冷柴油机汽缸头的气门布置结构，其特征在于， 所述第一冷却风道（8 )和所述第二冷却风道（9a ) 的进风端为共同的一 个进风口， 出风端分别为各自的出风口。 根据权利要求 1所述的风冷柴油机汽缸头的气门布置结构，其特征在于， 所述第一冷却风道 （8 ) 的出风端于所述排气门 （ 14 ) 处转弯后穿出。 根据权利要求 3所述的风冷柴油机汽缸头的气门布置结构，其特征在于， 所述第三冷却风道（ 9b )位于所述进气门 （ 15 )与所述汽虹头 （ 2 ) 的挺 才干室 （ 16 )之间。 根据权利要求 1所述的风冷柴油机汽缸头的气门布置结构，其特征在于， 所述排气道 （ 11 ) 的外侧还安装有导流罩 （ 12 )。 一种风冷柴油机， 其特征在于， 包括权利要求 1至 9中任一项所述的风 冷柴油机汽缸头的气门布置结构。
PCT/CN2011/073285 2010-04-26 2011-04-25 汽缸头气门布置结构及包括其的风冷柴油机 WO2011134380A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010154375.5 2010-04-26
CN201010154375.5A CN101818701B (zh) 2010-04-26 2010-04-26 风冷柴油机汽缸头气门布置结构

Publications (1)

Publication Number Publication Date
WO2011134380A1 true WO2011134380A1 (zh) 2011-11-03

Family

ID=42653929

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/073285 WO2011134380A1 (zh) 2010-04-26 2011-04-25 汽缸头气门布置结构及包括其的风冷柴油机

Country Status (2)

Country Link
CN (1) CN101818701B (zh)
WO (1) WO2011134380A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101818701B (zh) * 2010-04-26 2015-05-27 隆鑫通用动力股份有限公司 风冷柴油机汽缸头气门布置结构
CN107725207A (zh) * 2017-10-23 2018-02-23 何木栋 汽油发动机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61135960A (ja) * 1984-12-04 1986-06-23 Yanmar Diesel Engine Co Ltd 空冷式内燃機関のシリンダヘツド
US5421297A (en) * 1992-04-20 1995-06-06 Kawasaki Jukogyo Kabushiki Kaisha Four-cycle engine
CN1601063A (zh) * 2003-09-26 2005-03-30 本田技研工业株式会社 气缸盖的冷却风通路构造
CN1989322A (zh) * 2004-07-22 2007-06-27 洋马株式会社 引擎
CN101818701A (zh) * 2010-04-26 2010-09-01 隆鑫工业有限公司 风冷柴油机汽缸头气门布置结构
CN201661348U (zh) * 2010-03-03 2010-12-01 隆鑫工业有限公司 风冷内燃机的风道布置结构
CN201705487U (zh) * 2010-04-26 2011-01-12 隆鑫工业有限公司 风冷柴油机汽缸头气门布置结构

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2572021Y (zh) * 2002-09-20 2003-09-10 中国嘉陵工业股份有限公司（集团） 进、排气门错位的摩托车发动机
CN2781016Y (zh) * 2005-04-30 2006-05-17 浙江钱江摩托股份有限公司 等截面气道的摩托车发动机气缸头
CN101082311A (zh) * 2007-06-29 2007-12-05 无锡开普动力有限公司 一种风冷柴油机的气缸盖

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61135960A (ja) * 1984-12-04 1986-06-23 Yanmar Diesel Engine Co Ltd 空冷式内燃機関のシリンダヘツド
US5421297A (en) * 1992-04-20 1995-06-06 Kawasaki Jukogyo Kabushiki Kaisha Four-cycle engine
CN1601063A (zh) * 2003-09-26 2005-03-30 本田技研工业株式会社 气缸盖的冷却风通路构造
CN1989322A (zh) * 2004-07-22 2007-06-27 洋马株式会社 引擎
CN201661348U (zh) * 2010-03-03 2010-12-01 隆鑫工业有限公司 风冷内燃机的风道布置结构
CN101818701A (zh) * 2010-04-26 2010-09-01 隆鑫工业有限公司 风冷柴油机汽缸头气门布置结构
CN201705487U (zh) * 2010-04-26 2011-01-12 隆鑫工业有限公司 风冷柴油机汽缸头气门布置结构

Also Published As

Publication number Publication date
CN101818701B (zh) 2015-05-27
CN101818701A (zh) 2010-09-01

Similar Documents

Publication Publication Date Title
JP5093930B2 (ja) 内燃機関のシリンダヘッド内冷却水通路構造
US7802555B2 (en) Intake control device for an engine
JP2010185402A (ja) 多気筒エンジンの排気通路構造
JP2007278065A (ja) 排気マニホールド一体型シリンダヘッドの冷却構造
JP6217678B2 (ja) シリンダヘッド
US20140150759A1 (en) Engine Including External EGR System
JP6550968B2 (ja) エンジンの吸気供給構造
WO2011134380A1 (zh) 汽缸头气门布置结构及包括其的风冷柴油机
JP5326630B2 (ja) 多気筒エンジンの排気通路構造
WO2011136088A1 (ja) 排気マニホールド
JP2016148280A (ja) ターボチャージャ付き内燃機関
US20130104817A1 (en) Engine assembly including crankcase ventilation system
JP6365310B2 (ja) 内燃機関
JP6447104B2 (ja) インテークマニホールド
EP3517769B1 (en) Engine intake and exhaust system and internal combustion engine
JP6302953B2 (ja) Ｖ型内燃機関の吸気装置
JP4929235B2 (ja) Ｖ型エンジン
JP5864300B2 (ja) Ｅｇｒ通路構造
CN201705487U (zh) 风冷柴油机汽缸头气门布置结构
JP6645154B2 (ja) インテークマニホールド
TWI390105B (zh) Engine variable intake structure
JP5416534B2 (ja) 内燃機関の排気ガス還流装置
JP7356083B2 (ja) エンジンの吸気装置
JP5345033B2 (ja) 内燃機関
JPWO2019038920A1 (ja) エンジンの吸気システム

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11774371

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11774371

Country of ref document: EP

Kind code of ref document: A1