WO2011141002A1 - Internal exhaust gas recirculation structure for internal combustion engine cylinder head - Google Patents
Internal exhaust gas recirculation structure for internal combustion engine cylinder head Download PDFInfo
- Publication number
- WO2011141002A1 WO2011141002A1 PCT/CN2011/074063 CN2011074063W WO2011141002A1 WO 2011141002 A1 WO2011141002 A1 WO 2011141002A1 CN 2011074063 W CN2011074063 W CN 2011074063W WO 2011141002 A1 WO2011141002 A1 WO 2011141002A1
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- WIPO (PCT)
- Prior art keywords
- exhaust gas
- cylinder head
- passage
- exhaust
- combustion engine
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Classifications
-
- 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
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
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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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/41—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories characterised by the arrangement of the recirculation passage in relation to the engine, e.g. to cylinder heads, liners, spark plugs or manifolds; characterised by the arrangement of the recirculation passage in relation to specially adapted combustion chambers
Definitions
- the present invention relates to a small internal combustion engine, and more particularly to a built-in exhaust gas recirculation structure of a cylinder head of an internal combustion engine.
- BACKGROUND OF THE INVENTION In the exhaust gas of an internal combustion engine of a vehicle, part of the exhaust gas flowing through the exhaust passage is introduced into the intake passage to lower the combustion temperature of the mixed gas, and the exhaust gas recirculation passage (ERG) is usually used (exhaust gas recirculation) device circulating valve, ERG valve) suppress the generation of NO x.
- ERG exhaust gas recirculation passage
- an external type that is, an exhaust pipe is connected to an intake port through an external pipe to constitute an EGR passage, which is complicated in structure and It is easy to cause safety hazard due to damage of the external pipe.
- the EGR passage is formed by drilling near the inlet and exhaust valve seats of the cylinder head. This method can not cool the EGR gas, so the exhaust gas quality through EGR is degraded. The proportion of exhaust gas that is EGR returned to the cylinder for combustion is small, and the harmful effect of harmful gas is not good. This phenomenon is particularly prominent at high loads.
- An object of the present invention is to provide a built-in exhaust gas recirculation structure of a cylinder head of an internal combustion engine, which has a simple structure, a good cooling effect, a low cost, and can reduce harmful gas emissions.
- the built-in exhaust gas recirculation structure of the engine head of the internal combustion engine includes a gas head having an intake passage and an exhaust passage communicating with the combustion chamber, and the cylinder head cover is connected to the gas head
- the cylinder head and the cylinder head cover are provided with mutually communicating exhaust gas circulation passages, and the air inlet of the exhaust gas circulation passage communicates with the exhaust passage on the gas head, and the air outlet of the exhaust gas circulation passage and the cylinder head advance
- the gas passage is connected.
- the air inlet of the exhaust gas circulation passage is located in a positive pressure zone of the exhaust passage on the cylinder head, and the air outlet of the exhaust gas circulation passage is located in a negative pressure zone of the intake passage on the gas head.
- the exhaust gas circulation passage passes through a metal body of the cylinder head cover.
- the exhaust gas circulation passage has an inverted U shape. Since the above technical solution is adopted, an exhaust gas circulation passage communicating with each other is arranged on the cylinder head and the cylinder head cover, so that the intake port of the exhaust gas circulation passage communicates with the exhaust passage on the cylinder head, and the air outlet of the exhaust gas circulation passage is The intake passage on the cylinder head is connected.
- the exhaust gas circulation passage is for supplying a part of the exhaust gas flowing through the exhaust passage of the engine to the intake passage to reuse a large amount of unburned gas in the exhaust gas to reduce the emission of harmful gas.
- the exhaust gas circulation passage connecting the exhaust passage and the intake passage is built-in, and only the exhaust gas circulation passage is required to be provided in the metal body of the cylinder head cover and the cylinder head, and the exhaust gas recirculation valve (ERG) described in the background art is eliminated.
- the valve has the advantages of simple structure and cost saving. Since the structure of the present invention does not require maintenance, the maintenance cost can also be reduced.
- the exhaust gas circulation passage of the invention has an inverted U-shape in the cylinder head and the cylinder head cover, so that the passage thereof is long. When the exhaust gas passes through the exhaust gas circulation passage, the exhaust gas has a long residence time in the passage, which is favorable for heat dissipation of the exhaust gas.
- FIG. 1 is a schematic view of the structure of the present invention.
- 1 is the cylinder head
- 2 is the exhaust passage
- 3 is the intake passage
- 4 is the exhaust gas circulation passage
- 4a is the intake port
- 4b is the air outlet
- 5 is the cylinder head cover
- 6 is the rocker arm chamber.
- a built-in exhaust gas recirculation structure of a cylinder head of an internal combustion engine includes a cylinder head 1 provided with an intake passage 3 and an exhaust passage 2 communicating with a combustion chamber, an intake passage 3 and a combustion chamber Connected, due to the airflow and the negative pressure generated when the engine's gas distribution system inhales, a negative pressure zone with a smaller air pressure is formed at the portion of the intake passage 3 close to the intake valve, and the curved end of the intake passage 3 is provided with a The valve (not shown), the exhaust passage 2 is in communication with the combustion chamber; due to the positive flow generated by the flow of the airflow and the exhaust system of the engine, a pressure is generated at the portion of the exhaust passage 2 near the combustion chamber.
- an exhaust valve (not shown) is arranged at the end of the exhaust passage of the exhaust passage, and a cylinder head cover 5 is connected by a bolt on the cylinder head 1, and a space between the cylinder head and the cylinder head cover is shaken. Arm chamber 6.
- the cylinder head and the cylinder head cover are provided with an exhaust gas circulation passage 4 which communicates with each other to form a circulation loop, and the intake port 4a of the exhaust gas circulation passage 4 communicates with the exhaust passage 2 on the cylinder head, and the intake port 4a of the circulation passage
- the positive pressure zone of the exhaust passage provided on the cylinder head the large pressure of the exhaust gas flow in the positive pressure zone acts into the exhaust gas circulation passage 4;
- the air outlet 4b of the exhaust gas circulation passage 4 communicates with the intake passage 3 on the cylinder head
- the air outlet of the exhaust gas circulation passage is disposed in a negative pressure region of the intake passage.
- the intake port 4a of the circulation passage is directed to the exhaust gas circulation passage 4 of the cylinder head cover, and the air outlet 4b of the exhaust gas circulation passage 4 is directed to the exhaust gas circulation passage of the cylinder head cover
- a section of the exhaust gas circulation passage 4 is located in a metal solid portion of the cylinder head cover, and the exhaust gas circulation passage 4 of the gas head and the cylinder head cover has an inverted U shape, so that the exhaust gas circulation passage 4 is long, and the exhaust gas stays therein for a long time. Conducive to the cooling and cooling of the exhaust gas.
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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
Disclosed is an internal exhaust gas recirculation structure for an internal combustion engine cylinder head. The cylinder head (1) is provided with an intake passage (3) and an exhaust passage (2) which are in cummunication with a combustion chamber, and the cylinder head (1) is connected with a cylinder head cover (5). The cylinder head (1) and the cylinder head cover (5) are provided with exhaust gas circulation passages (4) which are communicated mutually. A gas inlet (4a) and a gas outlet (4b) of the exhaust gas circulation passages (4) are in communication with the exhaust passage (2) and the intake passage (3) arranged on the cylinder head, respectively. The internal exhaust gas recirculation structure has advantages of simple structure, good cooling effect and low cost, and enables the emission of harmful gases to be reduced.
Description
内燃机气缸头的内置废气再循环结构 技术领域 本发明涉及小型内燃机， 具体涉及一种内燃机气缸头的内置废气再循环结 构。 背景技术 在车辆的内燃机排放中， 将部分流经排气通路的废气引入进气通路， 降氐 混合气的燃烧温度， 通常釆用废气再循环通路 ( ERG"Exhaust Gas Recirculation" )装置（废气再循环阀， ERG阀）抑制 NOx的生成。 目前在小型 内燃机中， 主要釆用两种废气再循环通路结构， 一是外置式， 即在排气口处通 过一外置管路与进气口处相连， 构成 EGR通道， 此结构复杂， 且容易造成因 外置管的破损而产生安全隐患； 二是通过在气缸头的进、 排气门座附近钻孔形 成 EGR通道， 这种方法因 EGR气体无法冷却， 使得通过 EGR的废气气体质 量下降， 通过 EGR 回流到气缸燃烧的废气气体比例小， 有害气体的减排效果 不好， 这种现象在高负荷时尤为突出。 发明内容 本发明的目的是提供一种内燃机气缸头的内置废气再循环结构， 该内置废 气再循环结构结构简单， 冷却效果好， 成本低， 并且可以降低有害气体的排放。 本发明的目的是这样实现的： 内燃机气虹头的内置废气再循环结构， 包括 气虹头， 气缸头具有与燃烧室连通的进气通道和排气通道， 气虹头上连接有气 缸头盖， 所述气缸头与气缸头盖上设有互为连通的废气循环通道， 废气循环通 道的进气口与气虹头上的排气通道连通， 废气循环通道的出气口与气缸头上的 进气通道连通。 所述废气循环通道的进气口位于气缸头上的排气通道的正压区， 所述废气 循环通道的出气口位于气虹头上的进气通道的负压区。 所述废气循环通道贯通气缸头盖的金属实体中。 所述废气循环通道呈倒 U字型。
由于釆用上述技术方案， 在气缸头与气缸头盖上设有互为连通的废气循环 通道， 使废气循环通道的进气口与气缸头上的排气通道连通， 废气循环通道的 出气口与气缸头上的进气通道连通。 废气循环通道用于将流经发动机的排气通 路的废气的一部分供给进气通路， 使废气中大量未燃烧气体再次利用， 减少有 害气体的排放。 连通排气通道和进气通道的废气循环通道为内置式， 只需要在 气缸头盖和气缸头的金属实体中设置废气循环通道即可， 取消了背景技术中所 述的废气再循环阀 （ERG 阀）， 有结构简单， 节省成本的优点， 由于本发明所 述结构不需要维护， 因此， 还可以降低维护成本。 本发明所述的废气循环通道 在气缸头和气缸头盖内呈倒 U字型， 使得其通道较长， 当废气经过废气循环通 道时， 废气在通道中的滞留时间长， 有利于废气的散热， 废气冷却效果好， 降 低有害气体的排放。 附图说明 附图 1为本发明的结构示意图。 附图 1 中， 1为气缸头， 2为排气通道， 3为进气通道， 4为废气循环通道， 4a为进气口， 4b为出气口， 5为气缸头盖， 6为摇臂室。 具体实施方式 参照附图 1 , 内燃机气缸头的内置废气再循环结构， 包括气缸头 1 , 气缸 头 1设有与燃烧室连通的进气通道 3和排气通道 2，进气通道 3与燃烧室连通， 由于气流流动及发动机的配气系统吸气时产生的负压， 在进气通道 3靠近进气 门的部位形成气压较小的负压区， 进气通道 3弯曲的尾端设有进气门 （图中未 标示）， 排气通道 2 与燃烧室连通； 由于气流转向流动及发动机的配气系统排 气时产生的正压， 在排气通道 2靠近燃烧室的部位形成压力较大的正压区， 排 气通道的连通燃烧室端设有排气门 （图中未标示）， 气缸头 1 上通过螺栓连接 有气缸头盖 5 , 气缸头与气缸头盖之间的空间形成摇臂室 6。 所述气缸头与气 缸头盖上设有互为连通形成循环回路的废气循环通道 4, 废气循环通道 4的进 气口 4a与气缸头上的排气通道 2连通， 循环通道的进气口 4a设于气缸头上的 排气通道的正压区，废气气流在正压区的较大的压力作用进入废气循环通道 4; 废气循环通道 4的出气口 4b与气缸头上的进气通道 3连通， 废气循环通道的 出气口设于所述进气通道的负压区。 循环通道的进气口 4a 正对于气缸头盖的 废气循环通道 4,废气循环通道 4的出气口 4b正对于气缸头盖的废气循环通道BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small internal combustion engine, and more particularly to a built-in exhaust gas recirculation structure of a cylinder head of an internal combustion engine. BACKGROUND OF THE INVENTION In the exhaust gas of an internal combustion engine of a vehicle, part of the exhaust gas flowing through the exhaust passage is introduced into the intake passage to lower the combustion temperature of the mixed gas, and the exhaust gas recirculation passage (ERG) is usually used (exhaust gas recirculation) device circulating valve, ERG valve) suppress the generation of NO x. At present, in a small internal combustion engine, two types of exhaust gas recirculation passage structures are mainly used, and an external type, that is, an exhaust pipe is connected to an intake port through an external pipe to constitute an EGR passage, which is complicated in structure and It is easy to cause safety hazard due to damage of the external pipe. Second, the EGR passage is formed by drilling near the inlet and exhaust valve seats of the cylinder head. This method can not cool the EGR gas, so the exhaust gas quality through EGR is degraded. The proportion of exhaust gas that is EGR returned to the cylinder for combustion is small, and the harmful effect of harmful gas is not good. This phenomenon is particularly prominent at high loads. SUMMARY OF THE INVENTION An object of the present invention is to provide a built-in exhaust gas recirculation structure of a cylinder head of an internal combustion engine, which has a simple structure, a good cooling effect, a low cost, and can reduce harmful gas emissions. The object of the present invention is achieved as follows: The built-in exhaust gas recirculation structure of the engine head of the internal combustion engine includes a gas head having an intake passage and an exhaust passage communicating with the combustion chamber, and the cylinder head cover is connected to the gas head The cylinder head and the cylinder head cover are provided with mutually communicating exhaust gas circulation passages, and the air inlet of the exhaust gas circulation passage communicates with the exhaust passage on the gas head, and the air outlet of the exhaust gas circulation passage and the cylinder head advance The gas passage is connected. The air inlet of the exhaust gas circulation passage is located in a positive pressure zone of the exhaust passage on the cylinder head, and the air outlet of the exhaust gas circulation passage is located in a negative pressure zone of the intake passage on the gas head. The exhaust gas circulation passage passes through a metal body of the cylinder head cover. The exhaust gas circulation passage has an inverted U shape. Since the above technical solution is adopted, an exhaust gas circulation passage communicating with each other is arranged on the cylinder head and the cylinder head cover, so that the intake port of the exhaust gas circulation passage communicates with the exhaust passage on the cylinder head, and the air outlet of the exhaust gas circulation passage is The intake passage on the cylinder head is connected. The exhaust gas circulation passage is for supplying a part of the exhaust gas flowing through the exhaust passage of the engine to the intake passage to reuse a large amount of unburned gas in the exhaust gas to reduce the emission of harmful gas. The exhaust gas circulation passage connecting the exhaust passage and the intake passage is built-in, and only the exhaust gas circulation passage is required to be provided in the metal body of the cylinder head cover and the cylinder head, and the exhaust gas recirculation valve (ERG) described in the background art is eliminated. The valve has the advantages of simple structure and cost saving. Since the structure of the present invention does not require maintenance, the maintenance cost can also be reduced. The exhaust gas circulation passage of the invention has an inverted U-shape in the cylinder head and the cylinder head cover, so that the passage thereof is long. When the exhaust gas passes through the exhaust gas circulation passage, the exhaust gas has a long residence time in the passage, which is favorable for heat dissipation of the exhaust gas. , the exhaust gas cooling effect is good, reducing the emission of harmful gases. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of the structure of the present invention. In Fig. 1, 1 is the cylinder head, 2 is the exhaust passage, 3 is the intake passage, 4 is the exhaust gas circulation passage, 4a is the intake port, 4b is the air outlet, 5 is the cylinder head cover, and 6 is the rocker arm chamber. . DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS Referring to Figure 1, a built-in exhaust gas recirculation structure of a cylinder head of an internal combustion engine includes a cylinder head 1 provided with an intake passage 3 and an exhaust passage 2 communicating with a combustion chamber, an intake passage 3 and a combustion chamber Connected, due to the airflow and the negative pressure generated when the engine's gas distribution system inhales, a negative pressure zone with a smaller air pressure is formed at the portion of the intake passage 3 close to the intake valve, and the curved end of the intake passage 3 is provided with a The valve (not shown), the exhaust passage 2 is in communication with the combustion chamber; due to the positive flow generated by the flow of the airflow and the exhaust system of the engine, a pressure is generated at the portion of the exhaust passage 2 near the combustion chamber. In the positive pressure zone, an exhaust valve (not shown) is arranged at the end of the exhaust passage of the exhaust passage, and a cylinder head cover 5 is connected by a bolt on the cylinder head 1, and a space between the cylinder head and the cylinder head cover is shaken. Arm chamber 6. The cylinder head and the cylinder head cover are provided with an exhaust gas circulation passage 4 which communicates with each other to form a circulation loop, and the intake port 4a of the exhaust gas circulation passage 4 communicates with the exhaust passage 2 on the cylinder head, and the intake port 4a of the circulation passage The positive pressure zone of the exhaust passage provided on the cylinder head, the large pressure of the exhaust gas flow in the positive pressure zone acts into the exhaust gas circulation passage 4; the air outlet 4b of the exhaust gas circulation passage 4 communicates with the intake passage 3 on the cylinder head The air outlet of the exhaust gas circulation passage is disposed in a negative pressure region of the intake passage. The intake port 4a of the circulation passage is directed to the exhaust gas circulation passage 4 of the cylinder head cover, and the air outlet 4b of the exhaust gas circulation passage 4 is directed to the exhaust gas circulation passage of the cylinder head cover
4， 便于废气循环通道 4的设置。 负压区压力小， 便于废气循环通道 4进入进 4. It is convenient to set the exhaust gas circulation channel 4. The pressure in the negative pressure zone is small, which facilitates the circulation of the exhaust gas.
2 P36210 更正页（细则第 91条）
气通道， 废气循环通道 4把排气通道 2中的部分废气回流到进气通道 3 , 然后 进入燃烧室再次燃烧， 减少有害气体的排放。 发动机工作时， 废气气流在气紅 头上的排气通道的正压作用下进入废气循环通道 4, 由于负压区压力小， 经过 废气循环通道 4的部分废气回流到进气通道 3 , 然后进入燃烧室再次燃烧， 减 少了有害气体的排放。 所述废气循环通道 4的一段位于气缸头盖的金属实体部 分，气虹头与气缸头盖的废气循环通道 4呈倒 U字型 ,使废气循环通道 4较长， 废气在其中滞留时间长， 有利于废气的散热冷却。
2 P36210 Correction Page (Article 91) The gas passage, the exhaust gas circulation passage 4 returns a part of the exhaust gas in the exhaust passage 2 to the intake passage 3, and then enters the combustion chamber to be burned again to reduce the emission of harmful gases. When the engine is working, the exhaust gas flow enters the exhaust gas circulation channel 4 under the positive pressure of the exhaust passage on the gas red head. Due to the small pressure in the negative pressure zone, part of the exhaust gas passing through the exhaust gas circulation passage 4 flows back to the intake passage 3, and then enters The combustion chamber is burned again, reducing the emission of harmful gases. A section of the exhaust gas circulation passage 4 is located in a metal solid portion of the cylinder head cover, and the exhaust gas circulation passage 4 of the gas head and the cylinder head cover has an inverted U shape, so that the exhaust gas circulation passage 4 is long, and the exhaust gas stays therein for a long time. Conducive to the cooling and cooling of the exhaust gas.
Claims
权 利 要 求 书 一种内燃机气虹头的内置废气再循环结构， 包括气虹头， 气虹头具有与 燃烧室连通的进气通道和排气通道， 气缸头上连接有气缸头盖， 其特征 在于： 所述气缸头与气缸头盖上设有互为连通的废气循环通道， 废气循 环通道的进气口与气缸头上的排气通道连通， 废气循环通道的出气口与 气虹头上的进气通道连通。 才艮据权利要求 1所述的内燃机气虹头的内置废气再循环结构， 其特征在 于： 所述废气循环通道的进气口位于气虹头上的排气通道的正压区， 所 述废气循环通道的出气口位于气虹头上的进气通道的负压区。 才艮据权利要求 1所述的内燃机气虹头的内置废气再循环结构， 其特征在 于： 所述废气循环通道的一段贯通气缸头盖的金属实体中。 才艮据权利要求 1所述的内燃机气虹头的内置废气再循环结构， 其特征在 于： 所述废气循环通道呈倒 U字型。
The invention relates to a built-in exhaust gas recirculation structure of an engine head of an internal combustion engine, comprising a gas head having an intake passage and an exhaust passage communicating with a combustion chamber, and a cylinder head cover connected to the cylinder head, wherein The cylinder head and the cylinder head cover are provided with an exhaust gas circulation passage which communicates with each other, and the air inlet of the exhaust gas circulation passage communicates with the exhaust passage on the cylinder head, and the air outlet of the exhaust gas circulation passage and the gas head are advanced. The gas passage is connected. The internal exhaust gas recirculation structure of the gas engine head of the internal combustion engine according to claim 1, wherein: the intake port of the exhaust gas circulation passage is located in a positive pressure zone of the exhaust passage on the gas head, the exhaust gas The air outlet of the circulation passage is located in the negative pressure zone of the intake passage on the gas head. The built-in exhaust gas recirculation structure of the gas engine head of the internal combustion engine according to claim 1, wherein: a section of the exhaust gas recirculation passage penetrates into a metal body of the cylinder head cover. The built-in exhaust gas recirculation structure of the gas engine head of the internal combustion engine according to claim 1, wherein the exhaust gas circulation passage has an inverted U shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010171675A CN101846012A (en) | 2010-05-14 | 2010-05-14 | Internal exhaust gas recirculation structure for internal-combustion engine cylinder head |
| CN201010171675.4 | 2010-05-14 |
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| WO2011141002A1 true WO2011141002A1 (en) | 2011-11-17 |
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| PCT/CN2011/074063 WO2011141002A1 (en) | 2010-05-14 | 2011-05-13 | Internal exhaust gas recirculation structure for internal combustion engine cylinder head |
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| WO (1) | WO2011141002A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170276095A1 (en) * | 2016-03-24 | 2017-09-28 | Ford Global Technologies, Llc | Systems and method for an exhaust gas recirculation cooler coupled to a cylinder head |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846012A (en) * | 2010-05-14 | 2010-09-29 | 隆鑫工业有限公司 | Internal exhaust gas recirculation structure for internal-combustion engine cylinder head |
| CN106321273A (en) * | 2015-07-03 | 2017-01-11 | 常州科普动力机械有限公司 | Cylinder cover used for engine and engine using cylinder cover |
Citations (6)
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| JP2002285915A (en) * | 2001-03-27 | 2002-10-03 | Toyota Motor Corp | Exhaust gas recirculation passage of cylinder head |
| CN201125796Y (en) * | 2007-12-18 | 2008-10-01 | 广西玉柴机器股份有限公司 | Diesel engine cylinder cover |
| CN201125804Y (en) * | 2007-12-14 | 2008-10-01 | 比亚迪股份有限公司 | Internal combustion engine waste gases recirculating system |
| CN101846012A (en) * | 2010-05-14 | 2010-09-29 | 隆鑫工业有限公司 | Internal exhaust gas recirculation structure for internal-combustion engine cylinder head |
-
2010
- 2010-05-14 CN CN201010171675A patent/CN101846012A/en active Pending
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2011
- 2011-05-13 WO PCT/CN2011/074063 patent/WO2011141002A1/en active Application Filing
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| US4492209A (en) * | 1981-06-05 | 1985-01-08 | Honda Giken Kogyo Kabushiki Kaisha | Exhaust gas recirculation system |
| EP0701048A1 (en) * | 1994-09-10 | 1996-03-13 | Ford Motor Company Limited | A cylinder head |
| JP2002285915A (en) * | 2001-03-27 | 2002-10-03 | Toyota Motor Corp | Exhaust gas recirculation passage of cylinder head |
| CN201125804Y (en) * | 2007-12-14 | 2008-10-01 | 比亚迪股份有限公司 | Internal combustion engine waste gases recirculating system |
| CN201125796Y (en) * | 2007-12-18 | 2008-10-01 | 广西玉柴机器股份有限公司 | Diesel engine cylinder cover |
| CN101846012A (en) * | 2010-05-14 | 2010-09-29 | 隆鑫工业有限公司 | Internal exhaust gas recirculation structure for internal-combustion engine cylinder head |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20170276095A1 (en) * | 2016-03-24 | 2017-09-28 | Ford Global Technologies, Llc | Systems and method for an exhaust gas recirculation cooler coupled to a cylinder head |
| US10330054B2 (en) * | 2016-03-24 | 2019-06-25 | Ford Global Technologies, Llc | Systems and method for an exhaust gas recirculation cooler coupled to a cylinder head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101846012A (en) | 2010-09-29 |
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