KR20040013873A - Preventing apparatus to crack radiator core - Google Patents
Preventing apparatus to crack radiator core Download PDFInfo
- Publication number
- KR20040013873A KR20040013873A KR1020020046969A KR20020046969A KR20040013873A KR 20040013873 A KR20040013873 A KR 20040013873A KR 1020020046969 A KR1020020046969 A KR 1020020046969A KR 20020046969 A KR20020046969 A KR 20020046969A KR 20040013873 A KR20040013873 A KR 20040013873A
- Authority
- KR
- South Korea
- Prior art keywords
- core
- radiator
- tube
- header
- radiator core
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
- F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
- F28F9/182—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D2001/0253—Particular components
- F28D2001/026—Cores
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2225/00—Reinforcing means
- F28F2225/08—Reinforcing means for header boxes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
본 발명은 라디에이터 코어의 크랙 방지구조에 관한 것으로서, 보다 상세하게는 라디에이터를 통과하는 냉각수의 온도차에 의해서 코어 헤더와 튜브의 용접부가 열변형되어 누수가 발생되는 것을 방지하기 위한 라디에이터 코어의 크랙 방지구조에 관한 것이다.The present invention relates to a crack preventing structure of a radiator core, and more particularly, to prevent a leak of a radiator core due to thermal deformation of a welded portion of a core header and a tube due to a temperature difference of cooling water passing through a radiator. It is about.
일반적으로 연소실 안의 연소가스의 온도는 2,000℃ 이상에 이르고, 이 온도의 상당한 양이 실린더, 실린더 헤드, 피스톤, 밸브 등에 전도된다. 이러한 부분의 온도가 과도하게 높아지면 부품 재료의 강도가 저하되어 고장이 생기거나 수명이 단축되고, 연소상태도 나빠져 노킹이나 조기 점화가 발생하며 그 결과 엔진의 출력이 저하된다.In general, the temperature of the combustion gas in the combustion chamber reaches 2,000 ° C. or more, and a significant amount of this temperature is conducted to cylinders, cylinder heads, pistons, valves, and the like. Excessively high temperatures in these parts reduce the strength of the part material, resulting in failure or shortening of the life, resulting in poor combustion and knocking or premature ignition, resulting in lower engine output.
또, 냉각이 불완전한 상태에서는 실린더 벽의 유막이 끊기는 등의 윤활 기능의 저하와 오일의 변질 등으로 이상마모, 눌어 붙는 등 고장의 원인이 된다. 반대로 지나치게 냉각되면 연소에서 발생한 열량 가운데 냉각으로 손실되는 열량이 크기 때문에, 엔진의 열효율이 낮아지고 연료 소비량이 증가하는 등의 문제가 생기므로, 엔진의 온도를 알맞게 유지해주어야 한다. 이렇게 엔진을 통과하며 가열된 냉각수의 온도를 적정한 수준으로 식혀주는 장치가 라디에이터이다.Moreover, in the incomplete cooling state, it may cause failures such as abnormal wear and seizure due to deterioration of lubrication function such as breaking of the oil film on the cylinder wall, deterioration of oil, and the like. On the contrary, if too much of the heat generated from the combustion is lost due to cooling, the heat efficiency of the engine is lowered and fuel consumption is increased. Therefore, the temperature of the engine should be maintained properly. The radiator is a device that cools the temperature of the heated coolant through the engine to an appropriate level.
도 4는 일반적인 라디에이터의 구조를 도시한 것으로서, 그 구조는 상부 탱크(11)와, 라디에이터 코어(13)와 하부 탱크(12)로 구성된다. 상기한 라디에이터 코어(13)는 엔진을 통과하며 가열된 냉각수가 상부 탱크(11)로부터 하부 탱크(12)로 흐르는 튜브(14)와, 공기가 통하는 핀(15)으로 구성되어 있으며, 될 수 있는대로 방열면적을 크게 하고, 방열성이 좋은 얇은 구리판이나 알루미늄 합금판을 성형 재단하여 납땜되는 것이다.4 shows the structure of a general radiator, which is composed of an upper tank 11, a radiator core 13 and a lower tank 12. The radiator core 13 is composed of a tube 14 through which the heated coolant flows from the upper tank 11 to the lower tank 12, and an air passing pin 15. As the heat dissipation area is increased, a thin copper plate or an aluminum alloy plate having good heat dissipation is molded and soldered.
그리고, 도 5는 상기한 라디에이터의 상부탱크(11) 및 하부탱크(12)와튜브(14)가 연결되는 부분을 절개하여 도시한 도면으로서, 상기한 상부 및 하부 탱크(11,12)는 코어 헤더(16)를 매개로 튜브(14)의 상단 및 하단이 연결된다. 즉, 상기한 코어 헤더(16)는 상부 탱크(11)로 유입된 냉각수를 각각의 튜브(16)로 분배되도록 한다.FIG. 5 is a view illustrating a portion in which the upper tank 11, the lower tank 12, and the tube 14 of the radiator are connected to each other, and the upper and lower tanks 11 and 12 are cores. The upper and lower ends of the tube 14 are connected via the header 16. That is, the core header 16 allows the cooling water introduced into the upper tank 11 to be distributed to each tube 16.
한편, 상기한 코어 헤더(16)는 구리 등으로 된 금속판에 소정 간격으로 튜브(14)의 일단이 끼어지도록 결합공(16a)이 형성된다. 그리고 튜브(14)의 끝단을 상기 결합공(16a)에 끼운 상태에서 납용접하여 냉각수가 두 부재의 연결틈으로 새지 않도록 구성된다.On the other hand, the core header 16 is formed with a coupling hole 16a so as to sandwich one end of the tube 14 at a predetermined interval on a metal plate made of copper or the like. And the end of the tube 14 is welded in the state fitted to the coupling hole (16a) is configured so that the coolant does not leak into the connection gap between the two members.
그런데 상기와 같이 구성되는 라디에이터가 차량에 적용되어 고온의 냉각수가 통과될 뿐만 아니라 냉각수의 온도변화에 의해서 튜브가 인장되거나 압축되는 과정이 반복된다. 따라서 상기한 튜브와 코어 헤더가 납용접된 부분에서 크랙이 발생되는 문제가 있었다. 이렇게 크랙이 발생되는 현상은 특히 라디에이터의 각 코너부에서 발생되었다.By the way, the radiator configured as described above is applied to the vehicle and the process of tensioning or compressing the tube by the temperature change of the cooling water is repeated as well as passing the high temperature cooling water. Therefore, there is a problem that cracks are generated in the portion where the tube and the core header are solder welded. This cracking phenomenon occurred especially at each corner of the radiator.
따라서 본 발명은 상기와 같은 문제점을 해결하기 위해서 안출된 것으로서, 라디에이터를 통과하는 냉각수의 온도차에 의해서 코어 헤더와 튜브의 용접부가 열변형되어 누수가 발생되는 것을 방지하기 위한 라디에이터 코어의 크랙 방지구조를 제공하는 데 목적이 있다.Therefore, the present invention has been made to solve the above problems, and the crack prevention structure of the radiator core for preventing the leakage of heat generated by the welding of the core header and tube by the temperature difference of the coolant passing through the radiator The purpose is to provide.
본 발명은 상기와 같은 목적을 달성하기 위한 수단으로서,The present invention as a means for achieving the above object,
상하부로 배치되는 코어 헤더와 일정간격으로 배열되는 튜브를 매개로 하여상부 탱크와 하부 탱크가 서로 연결되어지되, 상기 코어 헤더의 관통공과 튜브의 상하부 끝단은 서로 납용접되고, 상기한 튜브와 튜브의 사이에는 냉각을 위한 다수의 핀이 형성되는 라디에이터 코어에 있어서,The upper tank and the lower tank are connected to each other through the core header arranged up and down and the tubes arranged at a predetermined interval, and the through hole of the core header and the upper and lower ends of the tube are lead welded to each other, and the tube and the tube In the radiator core is formed a plurality of fins for cooling between,
상기한 코어 헤더의 결합공에 튜브의 상하부 끝단을 끼우고 납용접하는 과정에서, 라디에이터 코어의 각 코너부의 용접면적이 증대되도록 하기 위해, 상기한 코어 헤더의 내측면 양단에 별도의 보강판을 추가하여 구성되는 것을 특징으로 한다.In the process of inserting the upper and lower ends of the tube into the coupling hole of the core header and solder welding, in order to increase the weld area of each corner of the radiator core, additional reinforcement plates are added to both ends of the inner surface of the core header. Characterized in that the configuration.
도 1은 본 발명에 의한 라디에이터 코어 헤드의 조립상태도.1 is an assembled state of the radiator core head according to the present invention.
도 2는 본 발명에 의한 보강판의 평면도.2 is a plan view of the reinforcing plate according to the present invention.
도 3은 본 발명에 의한 보강판이 설치된 위치를 설명하기 위한 도면.3 is a view for explaining a position where the reinforcing plate according to the present invention is installed.
도 4 내지 도 5는 종래의 기술을 설명하기 위한 도면.4 to 5 are views for explaining the conventional technology.
※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing
20 : 라디에이터 21 : 상부 탱크20: radiator 21: upper tank
22 : 하부 탱크 23 : 라디에이터 코어22: lower tank 23: radiator core
24 : 튜브 25 : 핀24 tube 25 pin
26 : 코어 헤더 30 : 보강판26 core header 30 reinforcement plate
31 : 관통공31: through hole
이하, 본 발명에 의한 라디에이터 코어의 구성 및 작용에 따른 바람직한 실시예를 첨부한 도면과 함께 상세하게 설명한다.Hereinafter, a preferred embodiment according to the configuration and operation of the radiator core according to the present invention will be described in detail with the accompanying drawings.
도 1은 본 발명에 의한 라디에이터 코어 헤드의 조립상태도이고, 도 2는 본 발명에 의한 보강판의 평면도이며, 도 3은 본 발명에 의한 보강판이 설치된 위치를 설명하기 위한 도면이다.1 is an assembled state diagram of a radiator core head according to the present invention, Figure 2 is a plan view of the reinforcing plate according to the present invention, Figure 3 is a view for explaining the position where the reinforcing plate according to the present invention is installed.
도면 중에 표시되는 도면부호 20은 본 발명에 의해 형성된 라디에이터를 지시하는 것이고, 도면부호 30은 본 발명에 의해 형성된 보강판을 지시하는 것이다.Reference numeral 20 shown in the drawing indicates a radiator formed by the present invention, and reference numeral 30 indicates a reinforcing plate formed by the present invention.
상기한 라디에이터(20)는 종래의 일반적인 라디에이터와 같이 상부 탱크(21)와 하부 탱크(22)가 형성되고, 상기 상부 탱크(21)와 하부 탱크(22) 사이에는 냉각수가 식히기 위한 라디에이터 코어(23)가 형성된다. 또한, 상기한 라디에이터 코어(23)의 주요소인 튜브(24)와 튜브(24) 사이에는 튜브(24) 내를 통과하는 냉각수의 열을 식히기 위한 핀(25)이 일정한 형상으로 규칙적으로 형성된다.The radiator 20 is formed with an upper tank 21 and a lower tank 22, like a conventional general radiator, and a radiator core 23 for cooling coolant between the upper tank 21 and the lower tank 22. ) Is formed. In addition, between the tube 24 and the tube 24, which are the main elements of the radiator core 23, fins 25 for cooling the heat of the cooling water passing through the tube 24 are regularly formed in a constant shape.
한편, 상기한 튜브(24)의 상하단은 상기 상부 탱크(21)의 하측과 하부 탱크(22)의 상측에 연결되는데, 상기 두 부재를 연결하는 매개로써 종래의 기술에서도 사용된 코어 헤더(26)가 사용된다. 즉, 상기한 코어 헤더(26)의 결합공(26a)에 튜브(24)의 끝단을 끼운 채로 납용접되는 것이다.On the other hand, the upper and lower ends of the tube 24 is connected to the lower side of the upper tank 21 and the upper side of the lower tank 22, the core header 26 used in the prior art as a medium for connecting the two members. Is used. That is, lead welding is performed while the end of the tube 24 is inserted into the coupling hole 26a of the core header 26.
그런데 본 발명에 의한 라디에어터 코어(23)의 결합구조에서는 상기한 코어헤더(26)의 내측에 별도의 보강판(30)이 추가되는데, 이 보강판(30)은 열변형에 의해서 자주 크랙현상이 발생되었던 라디에이터 코어(30)의 각 코너부 네 곳에 추가로 형성되는 것이다. 즉, 튜브(24)의 끝단을 코어 헤더(26)에 용접하는 과정에서 그 용접면적을 넓혀서 잦은 냉각수의 열변화에 따른 열응력에 대비하여 크랙현상을 방지하기 위한 것이다.However, in the coupling structure of the radiator core 23 according to the present invention, a separate reinforcement plate 30 is added to the inside of the core header 26, and the reinforcement plate 30 is frequently cracked due to thermal deformation. It is to be formed in four additional four corners of the radiator core 30 is a phenomenon occurred. That is, in the process of welding the end of the tube 24 to the core header 26 to increase the welding area to prevent cracking in preparation for thermal stress caused by frequent changes in the cooling water.
상기한 보강판(30)은 상기 코어 헤더(26)의 내측면에 밀착되도록 코어 헤더(26)의 표면형상에 따라서 굴곡형성되며, 그 도중에는 상기 튜브(25)의 끝단이 끼워지기 위한 관통공(31)이 형성된다. 특히, 상기한 보강판(31)의 두께는 0.7 ~ 1 mm 이내로 형성되는 것이 바람직하다.The reinforcing plate 30 is bent in accordance with the surface shape of the core header 26 to be in close contact with the inner surface of the core header 26, in the middle of the through hole for fitting the end of the tube 25 ( 31) is formed. In particular, the thickness of the reinforcing plate 31 is preferably formed within 0.7 ~ 1 mm.
따라서 상기한 튜브(24)를 코어 헤드(26)에 용접하는 과정에서 상기한 보강판(30)을 코어 헤드(26)의 내측에 위치시킨 다음에, 종래기술에서와 같이 납용접을 하게 되는 것이다.Accordingly, in the process of welding the tube 24 to the core head 26, the reinforcing plate 30 is placed inside the core head 26, and then soldered as in the prior art. .
특히, 종래기술의 경우 라디에이터 코어의 각 코너부에서 1~3열되는 부위에서 가장 많은 크랙이 발생되었던 점을 감안하여, 상기한 보강판(30)의 형성위치는 라디에이터 코어(23)의 각 코너부에서 10열째 되는 부분까지 하는 것이 바람직하다.In particular, in the case of the prior art in consideration of the fact that the most cracks are generated in the area of 1 to 3 rows at each corner of the radiator core, the formation position of the reinforcement plate 30 is each corner of the radiator core 23 It is preferable to carry out from the part to the tenth row.
이상과 같이 구성되는 본 발명에 의한 라디에이터 코어에서는 엔진을 통과하면서 가열되어 고온이 된 냉각수가 통과하거나, 냉각수의 잦은 열변화에 따른 원인에 의해서 그동안 취약부로 알려져 있던 라디에이터 코어의 연결부에 크랙이 발생되는 현상이 방지되는 것이다.In the radiator core according to the present invention configured as described above, the cooling water heated to pass through the engine and the high temperature passes, or cracks are generated in the connection part of the radiator core that has been known as a weak part due to frequent heat changes of the cooling water. The phenomenon is prevented.
이상과 같이 구성되는 본 발명은 냉각수의 열변화에 따른 취약부에 튜브와 코어 헤더를 용접하는 과정에서 보강판을 설치하여 용접면적을 확대되도록 하므로서, 엔진을 통과하면서 고열이 된 냉각수가 통과되거나, 냉각수의 잦은 열변화에 따른 원인으로 라디에이터 코어의 취약부에 크랙이 발생되는 현상이 방지되는 커다란 장점이 있는 것이다.The present invention configured as described above is to install a reinforcement plate in the process of welding the tube and the core header in the weak part due to the heat change of the coolant to expand the welding area, while passing through the engine the coolant that has become hot It is a great advantage to prevent the occurrence of cracks in the weak part of the radiator core due to frequent heat changes.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020046969A KR20040013873A (en) | 2002-08-09 | 2002-08-09 | Preventing apparatus to crack radiator core |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020046969A KR20040013873A (en) | 2002-08-09 | 2002-08-09 | Preventing apparatus to crack radiator core |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20040013873A true KR20040013873A (en) | 2004-02-14 |
Family
ID=37321140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020020046969A KR20040013873A (en) | 2002-08-09 | 2002-08-09 | Preventing apparatus to crack radiator core |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20040013873A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107933290A (en) * | 2017-12-19 | 2018-04-20 | 山东同创汽车散热装置股份有限公司 | A kind of fixing device and radiator core body for radiator core body |
KR20190088606A (en) | 2018-01-19 | 2019-07-29 | 유성준 | Video redundancy check system |
US11073345B2 (en) | 2018-10-31 | 2021-07-27 | Hanon Systems | Heat exchanger header with stiffening element |
EP3936805A1 (en) * | 2020-07-07 | 2022-01-12 | Valeo Autosystemy SP. Z.O.O. | Header stiffening outer insert |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50134169U (en) * | 1974-04-20 | 1975-11-05 | ||
JPS5243754U (en) * | 1975-09-23 | 1977-03-28 | ||
JPS5623894U (en) * | 1979-07-30 | 1981-03-04 | ||
JPS59130982U (en) * | 1983-02-17 | 1984-09-03 | カルソニックカンセイ株式会社 | Heat exchanger |
JPS61134596A (en) * | 1984-12-06 | 1986-06-21 | Toshiba Corp | Heat exchanger for heat pump device |
-
2002
- 2002-08-09 KR KR1020020046969A patent/KR20040013873A/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50134169U (en) * | 1974-04-20 | 1975-11-05 | ||
JPS5243754U (en) * | 1975-09-23 | 1977-03-28 | ||
JPS5623894U (en) * | 1979-07-30 | 1981-03-04 | ||
JPS59130982U (en) * | 1983-02-17 | 1984-09-03 | カルソニックカンセイ株式会社 | Heat exchanger |
JPS61134596A (en) * | 1984-12-06 | 1986-06-21 | Toshiba Corp | Heat exchanger for heat pump device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107933290A (en) * | 2017-12-19 | 2018-04-20 | 山东同创汽车散热装置股份有限公司 | A kind of fixing device and radiator core body for radiator core body |
KR20190088606A (en) | 2018-01-19 | 2019-07-29 | 유성준 | Video redundancy check system |
US11073345B2 (en) | 2018-10-31 | 2021-07-27 | Hanon Systems | Heat exchanger header with stiffening element |
EP3936805A1 (en) * | 2020-07-07 | 2022-01-12 | Valeo Autosystemy SP. Z.O.O. | Header stiffening outer insert |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100709027B1 (en) | EGR cooler | |
KR101510913B1 (en) | Prechamber arrangement of a combustion engine | |
EP0695895A1 (en) | Metal gasket | |
US20020023734A1 (en) | Charge air cooler and method of assembling the same | |
US4616603A (en) | Cylinder liner for a multi-cylinder internal combustion engine and an engine block therefor | |
US20030151210A1 (en) | Metal gasket | |
KR20040013873A (en) | Preventing apparatus to crack radiator core | |
KR20130101743A (en) | Method for manufacturing the radiator | |
JP2009293611A (en) | Engine piston | |
US2944336A (en) | Method of repairing and preventing thermal damage in combustion region wall structures of liquid cooled internal combustion engines | |
KR101374979B1 (en) | Method for manufacturing the radiator | |
US20070170661A1 (en) | Fire ring seal | |
KR100936980B1 (en) | Cylinder Head | |
US2337577A (en) | Cylinder head construction for engines | |
GB2073335A (en) | Internal combustion engine gasket | |
KR101977863B1 (en) | Radiator for vehicle | |
CN212985385U (en) | Insert structure for nose bridge area of cylinder cover of diesel engine | |
CN114183271B (en) | Cylinder head with unloading groove structure | |
JP3404098B2 (en) | Cylinder head gasket | |
EP4257810A1 (en) | Pre-chamber component for an internal combustion engine | |
KR100216805B1 (en) | Manufacturing mold for cylinder head | |
KR200367632Y1 (en) | Pressure block for clamping radiator tank | |
JP2000170627A (en) | Mounting structure of fuel injection nozzle | |
CN117404167A (en) | Exhaust manifold sealing structure and exhaust manifold with same | |
JP2005083258A (en) | Cooling structure of cylinder block |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |