WO2022166729A1 - 发动机气缸盖及发动机 - Google Patents

发动机气缸盖及发动机 Download PDF

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Publication number
WO2022166729A1
WO2022166729A1 PCT/CN2022/074157 CN2022074157W WO2022166729A1 WO 2022166729 A1 WO2022166729 A1 WO 2022166729A1 CN 2022074157 W CN2022074157 W CN 2022074157W WO 2022166729 A1 WO2022166729 A1 WO 2022166729A1
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Prior art keywords
cylinder
cylinder head
engine
liner
cavity
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PCT/CN2022/074157
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English (en)
French (fr)
Inventor
王伟峰
徐毅
邹健
贾云
罗文�
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常柴股份有限公司
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Publication of WO2022166729A1 publication Critical patent/WO2022166729A1/zh

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    • 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
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • 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
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream 
    • 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

Definitions

  • the utility model relates to an engine cylinder head, and in addition, the utility model also relates to the above-mentioned engine for the cylinder head.
  • the cylinder head is the main part of the diesel engine structure. It is used to close the upper part of the body, form the combustion chamber space with the piston and the cylinder liner, and ensure the smooth progress of the diesel engine intake and exhaust processes.
  • the cylinder head and the cylinder liner are processed separately, and finally assembled, and a sealing gasket is required to seal between the two. The process is complicated and the production cost is increased.
  • the purpose of the present utility model is to provide an engine cylinder head, which can simplify the structure of the engine cylinder head and reduce the cost.
  • Another object of the present invention is to provide an engine with a simplified structure of the cylinder head of the engine and reduced costs.
  • the utility model provides an integrally formed engine cylinder cover, which comprises a cylinder liner and a cylinder cover.
  • the cylinder liner is cylindrical and the outer wall is formed with several limit steps.
  • the cylinder head is formed with a cylindrical cylinder cavity, and the inner wall of the cylinder head is formed with several limiting grooves.
  • One end of the cylinder liner can be coaxially arranged in the cylinder cavity, and the outer wall of the cylinder liner is fitted with the inner wall of the cylinder cavity, and the cylinder liner is fixed to the cylinder head by several limit steps and several limit grooves.
  • the cylinder head also has an inlet port, an outlet port, an intake hole and an exhaust hole.
  • the intake port penetrates the cylinder head and communicates with one end of the cylinder liner in the cylinder cavity.
  • the air outlet port and the air intake port pass through the cylinder head side by side, and communicate with one end of the cylinder liner in the cylinder cavity.
  • the intake port is placed on one side of the cylinder head and communicates with the intake port.
  • the exhaust hole is located on the opposite side of the cylinder head from the intake hole and communicates with the outlet port.
  • the utility model provides an engine cylinder cover, which combines the engine cylinder cover with the cylinder liner, has a simplified structure and lower process cost.
  • an annular cooling water chamber is further formed in the cylinder head, the cooling water chamber surrounds the cylinder chamber, and the cooling water chamber is connected to the cylinder head One water inlet and one water outlet.
  • an injector hole and a glow plug hole are further opened at the upper end of the cylinder head, and the injector hole and the glow plug hole are respectively connected to the cylinder liner in the cylinder cavity. inside end.
  • the cylinder liner is a boron cast iron casting and the cylinder head is an aluminum casting.
  • the utility model also provides a diesel engine, which comprises a diesel engine body and the above-mentioned cylinder head, and the cylinder liner is connected to the interior of the diesel engine body.
  • the engine is a diesel engine.
  • FIG. 1 is a schematic structural diagram of an exemplary embodiment of an engine cylinder head.
  • FIG. 2 is a schematic cross-sectional view of an exemplary embodiment of an engine cylinder head.
  • FIG. 3 is a schematic side view of a structure of an exemplary embodiment of an engine cylinder head.
  • FIG. 4 is a schematic structural diagram of an exemplary embodiment of a diesel engine block.
  • FIG. 1 is a schematic structural diagram of a schematic embodiment of an engine cylinder head.
  • an engine cylinder head includes a cylinder liner 10 and a cylinder head 20 .
  • FIG. 2 is a schematic cross-sectional structural diagram of an engine cylinder head.
  • the cylinder liner 10 is in the shape of a circular tube and has several limiting steps 12 formed on the outer wall.
  • the cylinder head 20 is formed with a cylindrical cylinder cavity 30, the cylinder head 20 is formed with several limiting grooves 21 on the inner wall of the cylinder cavity 30, one end of the cylinder liner 10 can be coaxially arranged in the cylinder cavity 30, and the The outer wall is abutted with the inner wall of the cylinder cavity 30 .
  • the cylinder liner 10 is fixed to the cylinder head by several limiting steps 12 and several limiting grooves 21 , which further secures the cylinder liner 10 from moving in the cylinder cavity 30 .
  • FIG. 3 is a schematic side view of the engine cylinder head.
  • the cylinder head 20 also has an intake port 22, an outlet port 23, an intake hole 24 and an exhaust hole 25.
  • the intake port 22 It penetrates through the cylinder head 20 and communicates with one end of the cylinder liner 10 in the cylinder cavity 30, the outlet port 23 and the intake port 22 run through the cylinder head 20 side by side, and communicate with one end of the cylinder liner 10 in the cylinder cavity 30, and the intake hole 24 is arranged.
  • the exhaust hole 25 is placed on the opposite side of the cylinder head 20 from the intake port 24 and communicated with the intake port 23 .
  • an annular cooling water chamber 32 is also formed in the cylinder head 20 , the cooling water chamber 32 surrounds the cylinder chamber 30 and is connected to the cooling water chamber 32 A water inlet 26 and a water outlet 27 are opened on the cylinder head 20 to effectively improve the heat dissipation efficiency of the cylinder liner.
  • the upper end of the cylinder head 20 is also provided with an injector hole 28 and a glow plug hole 29. 28 and the glow plug hole 29 respectively communicate with one end of the cylinder liner 10 in the cylinder cavity 30 .
  • the cylinder liner 10 is preferentially cast with boron cast iron, and two limit steps 12 are cast on the periphery of the outer wall of the cylinder liner 10, and then the cylinder head 20 is cast with aluminum material. And a cylinder cavity 30 is left in the cylinder head 20 for being sleeved on the cylinder liner 10 , and the cylinder cavity 30 is provided with a limit groove 21 which is matched with the two limit steps 12 on the outer wall of the cylinder liner 10 . , further fixing the cylinder liner 10 in the cylinder cavity 30 to ensure that the cylinder liner 10 will not move when the piston moves up and down during the engine operation.
  • the utility model also provides an engine. 4 , the engine is a diesel engine, and the diesel engine includes a diesel engine block 40 and an above-mentioned cylinder head, wherein the cylinder liner 10 is connected to the interior of the diesel engine block 40, and the structure is simplified.

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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)

Abstract

一种发动机气缸盖（20），包括一个气缸套（10）和一个气缸盖（20），气缸套（10）为圆管状且外壁形成有数个限位台阶（12），气缸盖（20）形成有一个圆柱状气缸腔（30），气缸盖（20）在气缸腔（30）的内壁形成有有数个限位槽（21），气缸套（10）的一端能够同轴地设置于气缸腔（30），且气缸套（10）借由数个限位台阶（12）和数个限位槽（21）固定于气缸盖（20），气缸盖（20）还具有一个连通气缸套（10）在气缸腔（30）内的一端的进气门口（22）、一个连通气缸套（10）在气缸腔（30）内的一端的出气门口（23）、一个连通进气门口（22）的进气孔（24）和一个连通出气门口（23）的排气孔（25），该发动机气缸盖将发动机的气缸盖与气缸套结合为一体，结构精简，工艺成本较低。还提供了一种具备该发动机气缸盖（20）的发动机。

Description

发动机气缸盖及发动机 技术领域
本实用新型涉及一种发动机气缸盖，另外本实用新型还涉及上述用于气缸盖的发动机。
背景技术
气缸盖是柴油机构造的主要部件，用来封闭机体上部，与活塞、气缸套构成燃烧室空间并保证柴油机进、排气过程的顺利进行。现有技术中都是将气缸盖与气缸套分开加工生成，最后进行组装，且两者之间需要密封垫片来密封。造成工艺复杂，提高了生产成本。
发明内容
本实用新型的目的是提供一种发动机气缸盖，能够使得发动机气缸盖的结构精简，降低成本。
本实用新型的另一目的是提供一种发动机，发动机气缸盖的结构精简，降低成本。
本实用新型提供了一种一体成型的发动机气缸盖，包括一个气缸套和一个气缸盖。气缸套为圆管状且外壁形成有数个限位台阶。气缸盖形成有一个圆柱状气缸腔，气缸盖在气缸腔的内壁形成有有数个限位槽。气缸套的一端能够同轴地设置于气缸腔，并且气缸套的外壁与气缸腔的内壁贴合，气缸套借由数个限位台阶和数个限位槽固定于气缸盖。其中气缸盖还具有一个进气门口、一个出气门口、一个进气孔和一个排气孔。进气门口贯穿气缸盖并且连通气缸套在气缸腔内的一端。出气门口与进气门口并排地贯穿气缸盖，并且连通气缸套在气缸腔内的一端。进气孔置于气缸盖一侧并且连通进气门口。排气孔置于气缸盖上与进气孔的相对的一侧并且连通出气门口。
本实用新型提供一种发动机气缸盖，将发动机的气缸盖与气缸套相结合，结构精简，较低工艺成本。
在一体成型的发动机气缸盖的一种示意性实施方式中，气缸盖内还形成有一个圆环状的冷却水腔室，冷却水腔室环绕气缸腔，并且冷却水腔室连接开设于气缸盖上的 一个进水口和一个出水口。
在一体成型的发动机气缸盖的一种示意性实施方式中，气缸盖上端还开设有一个喷油器孔和一个预热塞孔，喷油器孔与预热塞孔分别连通气缸套在气缸腔内的一端。
在一体成型的发动机气缸盖的一种示意性实施方式中，气缸套为硼铸铁铸造件，气缸盖为铝铸造件。
本实用新型还提供了一种柴油机，包括一个柴油机机体和一个上述的气缸盖，气缸套连接柴油机机体的内部。
在柴油机的另一种示意性实施方式中，发动机为柴油机。
附图说明
以下附图仅对本发明做示意性说明和解释，并不限定本发明的范围。
图1为发动机气缸盖的一种示意性实施方式的结构示意图。
图2为发动机气缸盖的一种示意性实施方式的剖视示意图。
图3为发动机气缸盖的一种示意性实施方式的侧面结构示意图。
图4为柴油机机体的一种示意性实施方式的结构示意图。
标号说明
10 气缸套
12 限位台阶
20 气缸盖
21 限位槽
22 进气门口
23 出气门口
24 进气孔
25 排气孔
26 进水口
27 出水口
28 喷油器孔
29 预热塞孔
30 气缸腔
32 冷却水腔室
40 柴油机机体
具体实施方式
为了对实用新型的技术特征、目的和效果有更加清楚的理解，现对照附图说明本实用新型的具体实施方式，在各图中相同的标号表示结构相同或结构相似但功能相同的部件。
在本文中，“示意性”表示“充当实例、例子或说明”，不应将在本文中被描述为“示意性”的任何图示、实施方式解释为一种更优选的或更具优点的技术方案。
为使图面简洁，各图中只示意性地表示出了与本实用新型相关的部分，它们并不代表其作为产品的实际结构。
图1为发动机气缸盖的一种示意性实施方式的结构示意图，参照图1，发动机气缸盖，包括一个气缸套10和一个气缸盖20。
图2为发动机气缸盖的剖视结构示意图，参照图1和图2，气缸套10为圆管状且外壁形成有数个限位台阶12。气缸盖20形成有一个圆柱状气缸腔30，气缸盖20在气缸腔30的内壁形成有有数个限位槽21，气缸套10的一端能够同轴地设置于气缸腔30，并且气缸套10的外壁与气缸腔30的内壁贴合。气缸套10借由数个限位台阶12和数个限位槽21固定于气缸盖，进一步固定着气缸套10在气缸腔30内不会发生移动。
图3为发动机气缸盖的侧面结构示意图，参照图1至图3，气缸盖20还具有一个进气门口22、一个出气门口23、一个进气孔24和一个排气孔25，进气门口22贯穿气缸盖20并且连通气缸套10在气缸腔30内的一端，出气门口23与进气门口22并排地贯穿气缸盖20，并且连通气缸套10在气缸腔30内的一端，进气孔24置于气缸盖20一侧并且连通进气门口22，排气孔25置于气缸盖20上与进气孔24的相对的一侧并且连通出气门口23。
在本实用新型的一种示意性实施方式中，气缸盖20内还形成有一个圆环状的冷却水腔室32，冷却水腔室32环绕所述气缸腔30，并且冷却水腔室32连接开设于气缸盖20上的一个进水口26和一个出水口27，有效提高气缸套的散热效率，气缸盖20上端还开设有一个喷油器孔28和一个预热塞孔29，喷油器孔28与预热塞孔29 分别连通气缸套10在气缸腔30内的一端。
在本实用新型的一种示意性实施方式中，气缸套10采用硼铸铁的原料优先铸造，并在气缸套10外壁周圈铸造出两个限位台阶12，随后采用铝材料铸造气缸盖20，并在气缸盖20内留有一个气缸腔30，用于套设在气缸套10上，且气缸腔30内开设有与气缸套10外壁上两个限位台阶12相适配的限位槽21，进一步将气缸套10固定于气缸腔30内，保证气缸套10在发动机在工作中活塞的上下运动的时候不会发生移动。
本实用新型还提供了一种发动机。参照图4，发动机为柴油机，柴油机包括一个柴油机机体40和一个上述的气缸盖，其中气缸套10连接至柴油机机体40的内部，结构精简。
上文所列出的一系列的详细说明仅仅是针对本实用新型的可行性实施例的具体说明，它们并非用以限制本实用新型的保护范围，凡未脱离本实用新型技艺精神所作的等效实施方案或变更，如特征的组合、分割或重复，均应包含在本实用新型的保护范围之内。

Claims (6)

  1. 发动机气缸盖，其特征在于，包括
    一个气缸套(10)，其为圆管状且外壁形成有数个限位台阶(12)，
    一个气缸盖(20)，其形成有一个圆柱状气缸腔(30)，所述气缸盖(20)在所述气缸腔(30)的内壁形成有有数个限位槽(21)，所述气缸套(10)的一端能够同轴地设置于所述气缸腔(30)，并且所述气缸套(10)的外壁与所述气缸腔(30)的内壁贴合，所述气缸套(10)借由所述数个限位台阶(12)和所述数个限位槽(21)固定于所述气缸盖(20)，其中所述气缸盖(20)还具有：
    一个进气门口(22)，其贯穿所述气缸盖(20)并且连通所述气缸套(10)在所述气缸腔(30)内的一端，
    一个出气门口(23)，其与所述进气门口(22)并排地贯穿所述气缸盖(20)，并且连通所述气缸套(10)在所述气缸腔(30)内的一端，
    一个进气孔(24)，其置于所述气缸盖(20)一侧并且连通所述进气门口(22)，和
    一个排气孔(25)，其置于所述气缸盖(20)上与所述进气孔(24)的相对的一侧并且连通所述出气门口(23)。
  2. 如权利要求1所述的发动机气缸盖，其中所述气缸盖(20)内还形成有一个圆环状的冷却水腔室(32)，所述冷却水腔室(32)环绕所述气缸腔(30)，并且所述冷却水腔室(32)连接开设于所述气缸盖(20)上的一个进水口(26)和一个出水口(27)。
  3. 如权利要求1所述的发动机气缸盖，其中所述气缸盖(20)上端还开设有一个喷油器孔(28)和一个预热塞孔(29)，所述喷油器孔(28)与所述预热塞孔(29)分别连通所述气缸套(10)在所述气缸腔(30)内的一端。
  4. 如权利要求1所述的发动机气缸盖，其中所述气缸套(10)为硼铸铁铸造件，所述气缸盖(20)为铝铸造件。
  5. 发动机，包括一个柴油机机体(40)，其特征在于还包括：
    一个如权利要求1至4中任一项所述的气缸盖，所述气缸套(10)连接所述柴油机机体(40)的内部。
  6. 如权利要求5所述的发动机，其中所述的发动机为柴油机。。
PCT/CN2022/074157 2021-02-02 2022-01-27 发动机气缸盖及发动机 WO2022166729A1 (zh)

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CN202031706U (zh) * 2011-05-03 2011-11-09 朱雨辰 柴油发电机组
CN203742813U (zh) * 2014-03-12 2014-07-30 无锡华源凯马发动机有限公司 铝合金单缸水冷柴油机分体式气缸套
CN109681338A (zh) * 2019-03-07 2019-04-26 广西玉柴机器股份有限公司 复合式气缸盖发动机的缸套定位安装结构
CN111396211A (zh) * 2020-05-08 2020-07-10 广西玉柴机器股份有限公司 整体缸套与缸盖集成结构
CN111749807A (zh) * 2020-08-03 2020-10-09 广西玉柴机器股份有限公司 发动机气缸体
CN214499247U (zh) * 2021-02-02 2021-10-26 常柴股份有限公司 发动机气缸盖及发动机

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