WO2013020357A1 - Mécanisme de refroidissement de la culasse d'un moteur à quatre temps - Google Patents

Mécanisme de refroidissement de la culasse d'un moteur à quatre temps Download PDF

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Publication number
WO2013020357A1
WO2013020357A1 PCT/CN2012/001029 CN2012001029W WO2013020357A1 WO 2013020357 A1 WO2013020357 A1 WO 2013020357A1 CN 2012001029 W CN2012001029 W CN 2012001029W WO 2013020357 A1 WO2013020357 A1 WO 2013020357A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling water
cylinder head
cooling
passage
water inlet
Prior art date
Application number
PCT/CN2012/001029
Other languages
English (en)
Chinese (zh)
Inventor
肖亨琳
井锡昌
Original Assignee
无锡开普动力有限公司
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 无锡开普动力有限公司 filed Critical 无锡开普动力有限公司
Publication of WO2013020357A1 publication Critical patent/WO2013020357A1/fr

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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
    • F02F1/36—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
    • F02F1/242—Arrangement of spark plugs or injectors

Definitions

  • the present invention belongs to the technical field of engines, and relates to a cooling water direction and structural design problem of a cylinder head of a four-stroke engine, in particular to a cylinder head cooling structure of a four-stroke engine. Background technique
  • the object of the present invention is to address the deficiencies in the design of the cylinder head cooling structure in the prior art, thereby providing a well-designed cylinder head cooling structure suitable for a four-stroke engine, that is, a cooling water passage for the cylinder head.
  • the shape structure and the design of the arrangement of the inlet and outlet of the cooling water are obtained by fluid analysis to obtain a cooling structure.
  • a cylinder head cooling structure of a four-stroke engine is provided with an injector sleeve at the center of the cylinder head, and four circumferentially evenly distributed valves are arranged around the injector sleeve.
  • the seat is characterized in that: the bottom surface of the cylinder head is provided with a cooling water inlet for introducing cooling water from the body into the cylinder head; and the cylinder cover is provided with a cooling water channel communicating with the cooling water inlet.
  • the cooling water channel is arranged around the four valve seats; a cooling cavity for cooling the fuel injector and the intake air passage is arranged around the fuel injector sleeve, the cooling chamber is located above the cooling water passage, and passes through the cooling water inlet channel and the cooling water channel In connection, the cooling water inlet is disposed near the injector casing; and the cooling chamber top is provided with a cooling water outlet for cooling water to flow out.
  • the cooling water channel is located parallel to the bottom surface of the cylinder head.
  • cooling water inlets which are evenly distributed around the injector casing in the circumferential direction, and the cooling water inlet is inclined from the bottom to the injector casing.
  • the cooling water passage is machined from the side of the cylinder head, and the outer end of the cooling water passage is suffocated with a stuffy head.
  • the present invention has the advantages that the fluid analysis of the cylinder head and the inlet and outlet position of the cooling water are rationally designed by the fluid analysis, so that the mechanical load and the thermal load capacity of the cylinder head are greatly improved.
  • the utility model can improve the cooling of each part of the cylinder head efficiently; the cylinder head of the invention can be cast and formed, the production process is simple, and the yield is improved.
  • FIG. 1 is a front elevational view of a cylinder head of the present invention.
  • FIG. 2 is a plan view of a cylinder head of the present invention.
  • FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2.
  • 4 is a cross-sectional view taken along line BB of FIG. 3.
  • the cylinder head 1 is provided with a fuel injector sleeve 2 for installing an injector, and four valve seats uniformly distributed in the circumferential direction around the injector sleeve 2. 4; the bottom surface of the cylinder head 1 is provided with a cooling water inlet la for introducing the cooling water from the body into the cylinder head 1; the cylinder head 1 is provided with a cooling water channel communicating with the cooling water inlet la Lb, a cooling water passage lb is disposed around the four valve seats 4; a cooling chamber ld for cooling the injector and the intake/exhaust passage is disposed around the injector casing 2, and the cooling chamber Id is located above the cooling water passage lb, and The cooling water inlet lc is communicated with the cooling water passage 1b, which is disposed near the vicinity of the injector casing 2; and the cooling water inlet Id is provided with a cooling water outlet port le for cooling water to flow out.
  • the cooling water inlet la is machined from the bottom surface of the cylinder head 1.
  • the cooling water passage lb is located parallel to the bottom surface of the cylinder head 1, and the cooling water passage lb is machined from the side of the cylinder head 1, and the outer end of the cooling water passage lb is suffocated with the bulkhead 3.
  • the cooling water inlets lc are machined from the hole above the injector cover 2, and they are oriented from bottom to top.
  • the injector sleeve 2 is tilted so that cooling of the injector sleeve 2 can be ensured.
  • the cooling chamber Id and the cooling water outlet le are sand cavities which can be cast.
  • the cooling water is discharged from the body, enters the cylinder head 1 through the four cooling water inlets la on the bottom surface of the cylinder head 1, and flows from the periphery of the cylinder head 1 to the center through the cooling water passage lb, and the cylinder head 1 is cooled at the bottom, and then enters the cooling chamber Id through the four cooling water inlets lc around the injector sleeve 2, cools the injector and the inlet and exhaust passages, and finally flows out from the cooling water outlet port. Entering the return water line completes the cooling of the bottom of the cylinder head 1, the valve seat 4, the injector and the intake/exhaust passage.

Abstract

Mécanisme de refroidissement de la culasse d'un moteur à quatre temps, dans laquelle culasse (1) vient un manchon d'injection (2) entouré par quatre sièges de soupape (4) uniformément distribués sur le pourtour, la surface inférieure de la culasse (1) présentant des orifices d'admission d'eau de refroidissement (1a) destinés à entraîner l'eau de refroidissement émanant du bloc moteur vers la culasse (1) dans laquelle sont pratiqués des passages d'eau de refroidissement (1b) en communication avec les orifices d'admission d'eau de refroidissement (1a) et entourant les quatre sièges de soupape (4). Le manchon d'injection (2) est logé dans une cavité de refroidissement (1d) des passages d'admission/sortie d'échappement destinée à refroidir l'injecteur, laquelle cavité de refroidissement (1d) se trouvant sous les passages d'eau de refroidissement (1b) et en communication avec ceux-ci (1b) par l'intermédiaire de passages d'admission d'eau de refroidissement (1c), lesquels sont ménagés à proximité et de part et d'autre du manchon d'injection (2). La partie supérieure de la cavité de refroidissement (1d) présente un orifice de sortie d'eau de refroidissement (1e) destinée à évacuer l'eau de refroidissement. La charge mécanique et la capacité de charge thermique de la culasse de l'invention sont sensiblement améliorées et permettent d'assurer un refroidissement efficace de chacune des parties de la culasse.
PCT/CN2012/001029 2011-08-05 2012-07-31 Mécanisme de refroidissement de la culasse d'un moteur à quatre temps WO2013020357A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110223828XA CN102337981A (zh) 2011-08-05 2011-08-05 一种四冲程发动机的气缸盖冷却结构
CN201110223828.X 2011-08-05

Publications (1)

Publication Number Publication Date
WO2013020357A1 true WO2013020357A1 (fr) 2013-02-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/001029 WO2013020357A1 (fr) 2011-08-05 2012-07-31 Mécanisme de refroidissement de la culasse d'un moteur à quatre temps

Country Status (2)

Country Link
CN (1) CN102337981A (fr)
WO (1) WO2013020357A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102337981A (zh) * 2011-08-05 2012-02-01 无锡开普动力有限公司 一种四冲程发动机的气缸盖冷却结构
CN103953454A (zh) * 2014-04-03 2014-07-30 中国北方发动机研究所(天津) 一种内燃机气缸盖水腔结构
US9611802B2 (en) * 2014-09-29 2017-04-04 GM Global Technology Operations LLC Engine assembly including a thermal barrier
CN105257424B (zh) * 2015-10-23 2019-04-02 力帆实业(集团)股份有限公司 一种摩托车水冷发动机用气缸盖
CN114962050B (zh) * 2021-12-16 2023-10-13 中国船舶集团有限公司第七一一研究所 一种气缸盖冷却水腔结构、气缸盖和柴油机

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DE3802886A1 (de) * 1987-02-04 1988-08-18 Avl Verbrennungskraft Messtech Zylinderkopf fuer wassergekuehlte brennkraftmaschinen
US5615641A (en) * 1994-06-09 1997-04-01 Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh Internal-combustion engine cylinder head
CN2628738Y (zh) * 2003-06-06 2004-07-28 浙江星月柴油机有限公司 鼻梁区设有强制冷却水道的气缸盖
EP1126152B1 (fr) * 2000-02-16 2006-09-13 Deere & Company Culasse pour un moteur à combustion interne
FR2906571A1 (fr) * 2006-10-02 2008-04-04 Renault Sas Culasse munie d'inserts pour moteurs a combustion interne
CN201092896Y (zh) * 2007-10-26 2008-07-30 上海柴油机股份有限公司 多缸柴油机强冷却双层水道整体气缸盖
CN201306225Y (zh) * 2008-11-07 2009-09-09 无锡动力工程股份有限公司 具有双层水流通道的高强度气缸盖
CN201326468Y (zh) * 2008-12-09 2009-10-14 奇瑞汽车股份有限公司 带有冷却水套的缸盖
CN201396222Y (zh) * 2009-03-31 2010-02-03 南通柴油机股份有限公司 一缸一盖四气门系列柴油机气缸盖
CN102337981A (zh) * 2011-08-05 2012-02-01 无锡开普动力有限公司 一种四冲程发动机的气缸盖冷却结构
CN202220672U (zh) * 2011-08-05 2012-05-16 无锡开普动力有限公司 一种四冲程发动机的气缸盖冷却结构

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AT258045B (de) * 1964-08-21 1967-11-10 H C Hans Dipl Ing Dr Dr List Zylinderkopf für eine wassergekühlte, ventilgesteuerte Einspritzbrennkraftmaschine
CN2866866Y (zh) * 2006-01-24 2007-02-07 潍柴动力股份有限公司 新型气缸盖冷却水道
CN101413459B (zh) * 2008-11-12 2010-09-01 无锡动力工程股份有限公司 具有双层水流通道的高强度气缸盖

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3802886A1 (de) * 1987-02-04 1988-08-18 Avl Verbrennungskraft Messtech Zylinderkopf fuer wassergekuehlte brennkraftmaschinen
US5615641A (en) * 1994-06-09 1997-04-01 Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh Internal-combustion engine cylinder head
EP1126152B1 (fr) * 2000-02-16 2006-09-13 Deere & Company Culasse pour un moteur à combustion interne
CN2628738Y (zh) * 2003-06-06 2004-07-28 浙江星月柴油机有限公司 鼻梁区设有强制冷却水道的气缸盖
FR2906571A1 (fr) * 2006-10-02 2008-04-04 Renault Sas Culasse munie d'inserts pour moteurs a combustion interne
CN201092896Y (zh) * 2007-10-26 2008-07-30 上海柴油机股份有限公司 多缸柴油机强冷却双层水道整体气缸盖
CN201306225Y (zh) * 2008-11-07 2009-09-09 无锡动力工程股份有限公司 具有双层水流通道的高强度气缸盖
CN201326468Y (zh) * 2008-12-09 2009-10-14 奇瑞汽车股份有限公司 带有冷却水套的缸盖
CN201396222Y (zh) * 2009-03-31 2010-02-03 南通柴油机股份有限公司 一缸一盖四气门系列柴油机气缸盖
CN102337981A (zh) * 2011-08-05 2012-02-01 无锡开普动力有限公司 一种四冲程发动机的气缸盖冷却结构
CN202220672U (zh) * 2011-08-05 2012-05-16 无锡开普动力有限公司 一种四冲程发动机的气缸盖冷却结构

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