WO2010025610A1 - Bloc moteur refroidi par eau - Google Patents

Bloc moteur refroidi par eau Download PDF

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Publication number
WO2010025610A1
WO2010025610A1 PCT/CN2009/000765 CN2009000765W WO2010025610A1 WO 2010025610 A1 WO2010025610 A1 WO 2010025610A1 CN 2009000765 W CN2009000765 W CN 2009000765W WO 2010025610 A1 WO2010025610 A1 WO 2010025610A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling chamber
cooling
cylinder
water
cross
Prior art date
Application number
PCT/CN2009/000765
Other languages
English (en)
Chinese (zh)
Inventor
肖亨琳
Original Assignee
无锡开普机械有限公司
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 无锡开普机械有限公司 filed Critical 无锡开普机械有限公司
Publication of WO2010025610A1 publication Critical patent/WO2010025610A1/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 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
    • 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
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/021—Cooling cylinders

Definitions

  • the present invention relates to a water-cooled engine block, and more particularly to a cylinder block for a wet-cylinder engine.
  • the engine body of the wet cylinder liner is provided with a cooling water channel between the cylinder liner and the cylinder block, and a cooling water jacket is formed in the cooling water channel to form a cooling water jacket.
  • the wet cylinder liner is in direct contact with the coolant and has better heat dissipation conditions.
  • the temperature of each part of the cylinder liner is very inconsistent, and the fire shore of the piston is concentrated on the upper part of the cylinder liner.
  • the cooling water jacket of the existing engine body has no change in the cross-sectional area, and the coolant flow rate and the flow rate of each part in the cooling water jacket are the same, and the cooling rate of each part of the cylinder liner is the same, resulting in uneven temperature of the entire cylinder liner. . Since the temperatures of the various parts of the cylinder are inconsistent, the degree of expansion of each part is also different, so that the normal fit clearance between the parts changes, thereby affecting the normal operation of the engine.
  • the object of the present invention is to overcome the above-mentioned deficiencies and to provide a water-cooled engine body in which the flow rate and flow rate of the coolant in the cylinder casing temperature portion are increased to achieve better cooling of each portion of the cylinder block.
  • the water-cooled engine body comprises a cylinder block and a cylinder liner, and a cooling water channel is arranged between the cylinder liner and the cylinder block, and a cooling water jacket is formed in the cooling water channel to form a cooling water jacket; and the feature is - the cylinder liner
  • An upper positioning belt and a lower positioning belt are disposed on the inner surface of the cylinder; a convex ring is disposed on the inner surface of the cylinder; a cooling water channel formed between the lower positioning belt and the convex ring is a first cooling chamber;
  • the cooling water channel formed between the positioning belts is a second cooling chamber;
  • the cooling water channel formed above the upper positioning belt is a third cooling chamber;
  • the cross-sectional area of the second cooling chamber is smaller than the cross section of the first cooling chamber Area;
  • the cross-sectional area of the third cooling chamber is smaller than the cross-sectional area of the second cooling chamber.
  • the convex ring is located between the upper positioning belt and the lower positioning belt of the cylinder liner, and a circumferential gap is disposed between the cylinder sleeve and the cylinder sleeve.
  • the water inlet and the water outlet are arranged on the cylinder; the water inlet is in communication with the first cooling chamber; and the water outlet is connected to the water outlet of the second cooling chamber and the third cooling chamber.
  • a communication port communicating with the first cooling chamber is disposed on a sidewall of the cylinder.
  • the top of the cylinder is provided with a water jacket hole communicating with the second cooling chamber.
  • the inner surface of the cylinder is provided with an axial groove formed as a water inlet of the third cooling chamber, and the water inlet corresponds to the upper positioning belt.
  • the present invention utilizes the Venturi principle.
  • a pressure drop occurs due to a throat at the outlet, so that the flow rate of the coolant is increased, the flow rate is increased, and the heat dissipation rate is also increased.
  • a cooling chamber having a small cross-sectional area is disposed in a high temperature region of the cylinder liner, thereby accelerating the coolant.
  • the flow rate increases the flow rate of the coolant, increases the heat dissipation rate of the high temperature zone, makes the temperature of the entire cylinder liner uniform, ensures the normal matching clearance between the various parts of the cylinder, and ensures the normal operation of the engine; The temperature of the cylinder liner is more uniform.
  • the invention adds a convex ring on the cylinder body, because the flow velocity of the coolant in the first cooling chamber is not uniform, and the coolant flows into the second cooling chamber through the convex ring and is evenly distributed, and the convex ring and the cylinder sleeve are used.
  • the upper positioning belt and the lower positioning belt divide the cooling water jacket into three cooling chambers, and the structure is simple, and the processing and manufacturing are convenient.
  • the side wall of the cylinder body is provided with a communication port communicating with the first cooling chamber, and the cooling water jacket between the cylinders of the multi-cylinder engine can be penetrated.
  • the top of the cylinder body is provided with a water jacket hole communicating with the second cooling chamber to guide the coolant flowing from the body to the cylinder head, so that the fluidity of the water jacket of the cylinder head and the water jacket of the body is better.
  • Figure 1 is a plan view of the present invention.
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1.
  • Figure 3 is a cross-sectional view taken along line B-B of Figure 1.
  • Figure 4 is a cross-sectional view taken along line C-C of Figure 1.
  • Figure 5 is a cross-sectional view taken along line D-D of Figure 1.
  • Figure 6 is a cross-sectional view taken along line E-E of Figure 2;
  • Figure 7 is a cross-sectional view taken along line F-F of Figure 2;
  • Figure 8 is a cross-sectional view taken along line G-G of Figure 2.
  • Figure 9 is a cross-sectional view taken along line H-H of Figure 2.
  • FIG. 1 it is a top view of the last cylinder in the multi-cylinder water-cooled engine block.
  • the invention comprises a cylinder block 1 and a cylinder liner 2; a cooling water channel is arranged between the cylinder liner 2 and the cylinder block 1, and a cooling water jacket is formed in the cooling water channel to form a cooling water jacket.
  • the cooling water jacket may be provided as two or more cooling chambers, and the cross-sectional areas of the two or more cooling chambers are decreased in the axial direction of the cylinder liner 2.
  • the preferred cooling chamber is set to three.
  • the cylinder sleeve 2 is provided with an upper positioning belt 11 and a lower positioning belt 15, and the inner surface of the cylinder block 1 is provided with a convex ring.
  • the convex ring 8 is located between the upper positioning belt 11 of the cylinder liner 2 and the lower positioning belt 15, and is provided with a circumferential gap 5 between the cylinder liner 2 (see Fig. 8).
  • the cooling water channel between the lower positioning belt 15 and the convex ring 8 is formed as a first cooling chamber 6, and the cooling water passage between the convex ring 8 and the upper positioning belt 11 is formed as a second cooling chamber 4, and the cooling water channel above the positioning belt 11 is formed.
  • the cross-sectional area of the second cooling chamber 4 is smaller than the cross-sectional area of the first cooling chamber 6; the cross-sectional area of the third cooling chamber 3 is smaller than the cross-sectional area of the second cooling chamber 4.
  • the area of the cross section of the first cooling chamber 6 is the largest, the area of the cross section of the second cooling chamber 4 is second, and the area of the cross section of the third cooling chamber 3 is the smallest.
  • the inner surface of the cylinder block 1 corresponding to the upper positioning belt 11 is provided with two axial grooves formed as the water inlet port 14 of the third cooling chamber.
  • the cylinder block 1 is provided with a water inlet port 7 and a water outlet port 10 (see FIG. 7), the water inlet port 7 is in communication with the first cooling chamber 6, and the water outlet port 10 and the second cooling chamber 4 are The water outlet 9 of the third cooling chamber is in communication.
  • the side wall of the cylinder block 1 is provided with a communication port 12 communicating with the first cooling chamber 6.
  • the function of the communication port 12 is to penetrate the cooling water jacket between the cylinders of the multi-cylinder engine.
  • the top of the cylinder block 1 is provided with a water jacket hole 13 communicating with the second cooling chamber 4.
  • the function of the water jacket hole 13 is to increase the coolant flowing from the body to the cylinder head, so that the fluidity of the cylinder head water jacket and the water jacket of the body is better.
  • the cross-sectional area of the cooling chamber 3 and the third cooling chamber 3 is smaller than the cross-sectional area of the second cooling chamber 4.
  • the Venturi principle is used to speed up the flow rate at the outlet.
  • the cross-sectional areas of the three cooling chambers are sequentially decreased, the cooling rate of the upper portion of the cylinder liner 2 is greater than the cooling rate of the lower portion, and the fire shore of the piston is mainly concentrated at the upper portion of the cylinder liner 2, so that the cooling rate of the upper portion of the cylinder liner 2 Faster, the overall temperature unevenness of the liner 2 is improved.
  • a water jacket hole 13 communicating with the second cooling chamber 4 is added to a cylinder closest to the cooler. Since the flow rate of the cylinder is the largest, the coolant flowing from the body to the cylinder head is more, so that the water jacket of the cylinder head and the body The circulation of the water jacket is also better.
  • the present invention enables the engine to have a better cooling effect.

Abstract

L'invention porte sur un bloc moteur refroidi par eau qui comporte un bloc cylindre (1) et une chemise de cylindre (2) sur laquelle une bande de positionnement supérieure (11) et une bande de positionnement inférieure (15) sont placées; une bride annulaire (8) est placée sur la surface interne du bloc cylindre (1); une première chambre de refroidissement (6) est un passage d'eau de refroidissement formé entre la bande de positionnement inférieure (15) et la bride annulaire (8); une deuxième chambre de refroidissement (4) est un passage d'eau de refroidissement formé entre la bride annulaire (8) et la bande de positionnement supérieure (11); une troisième chambre de refroidissement (3) est un passage d'eau de refroidissement formé au-dessus de la bande de positionnement supérieure (11); la section transversale de la deuxième chambre de refroidissement (4) est plus petite que celle de la première chambre de refroidissement (6); la section transversale de la troisième chambre de refroidissement (3) est plus petite que celle de la deuxième chambre de refroidissement (4). Le bloc moteur refroidi par eau peut augmenter la vitesse d'écoulement et le débit d'écoulement du fluide de refroidissement et l'efficacité de dissipation de chaleur dans une région de température élevée, ce qui permet une température uniforme de toute la chemise de cylindre et assure un ajustement avec jeu normal parmi toutes les pièces du bloc cylindre et un fonctionnement normal du moteur.
PCT/CN2009/000765 2008-09-03 2009-07-06 Bloc moteur refroidi par eau WO2010025610A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810195845.5 2008-09-03
CNA2008101958455A CN101349213A (zh) 2008-09-03 2008-09-03 水冷发动机机体

Publications (1)

Publication Number Publication Date
WO2010025610A1 true WO2010025610A1 (fr) 2010-03-11

Family

ID=40268144

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/000765 WO2010025610A1 (fr) 2008-09-03 2009-07-06 Bloc moteur refroidi par eau

Country Status (2)

Country Link
CN (1) CN101349213A (fr)
WO (1) WO2010025610A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103522004A (zh) * 2012-07-04 2014-01-22 可立新实业有限公司 水冷式机车汽缸制法
DE102016213252A1 (de) * 2016-07-20 2018-01-25 Man Diesel & Turbo Se Brennkraftmaschine mit mindestens einem Zylinder, dessen Zylinderlaufbuchse über ein flüssiges Kühlmittel kühlbar ist
CH713618A1 (de) * 2017-03-22 2018-09-28 Liebherr Machines Bulle Sa Flüssigkeitsgekühlter Verbrennungsmotor.
CN114382605A (zh) * 2021-12-31 2022-04-22 江苏紫金动力股份有限公司 一种高性能柴油机缸套及其生产工艺

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101349213A (zh) * 2008-09-03 2009-01-21 无锡开普机械有限公司 水冷发动机机体
CN102518500A (zh) * 2011-12-31 2012-06-27 潍柴动力股份有限公司 一种发动机及其冷却方法
CN103696866A (zh) * 2013-12-06 2014-04-02 潍柴动力股份有限公司 一种内燃机及其机体组
CN103953453A (zh) * 2014-03-17 2014-07-30 东风朝阳朝柴动力有限公司 变气缸孔截面的发动机机体
CN104533648A (zh) * 2014-11-26 2015-04-22 中国北方发动机研究所(天津) 一种发动机气缸套周向均匀冷却结构
CN107587950B (zh) * 2017-09-22 2020-09-15 力帆实业(集团)股份有限公司 摩托车水冷发动机气缸体结构
CN107725208B (zh) * 2017-09-22 2024-02-27 力帆实业(集团)股份有限公司 摩托车水冷发动机
CN108035816B (zh) * 2017-11-17 2021-02-05 无锡开普动力有限公司 V型大功率发动机气缸套冷却水腔的结构
WO2020133047A1 (fr) * 2018-12-27 2020-07-02 潍柴动力股份有限公司 Moteur et sa structure de refroidissement
CN109488476A (zh) * 2018-12-27 2019-03-19 潍柴动力股份有限公司 发动机及其气缸体
CN111911309B (zh) * 2019-05-08 2022-11-15 康明斯公司 用于提供衬套的改善的冷却性能的汽缸缸体设计
CN110714850B (zh) * 2019-09-30 2020-12-22 潍柴动力股份有限公司 冷却水套及发动机
CN111456863B (zh) * 2020-05-18 2024-05-07 安徽华菱汽车有限公司 一种精准分流的缸套冷却装置
CN115163324B (zh) * 2022-08-29 2024-04-16 潍柴动力股份有限公司 气缸组件以及内燃机

Citations (6)

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Publication number Priority date Publication date Assignee Title
US3853099A (en) * 1972-12-21 1974-12-10 Caterpillar Tractor Co Elastomeric sealing ring for cylinder liners
DE2555942A1 (de) * 1975-12-12 1977-06-16 Daimler Benz Ag Wassergekuehlte mehrzylindrige brennkraftmaschine
GB1525766A (en) * 1975-09-05 1978-09-20 Kloeckner Humboldt Deutz Ag Water-cooled reciprocating-piston internal combustion engine
CN1483929A (zh) * 2002-03-28 2004-03-24 Avl里斯脱有限公司 液冷式内燃机气缸套筒和气缸壳体
CN101349213A (zh) * 2008-09-03 2009-01-21 无锡开普机械有限公司 水冷发动机机体
CN201258794Y (zh) * 2008-09-03 2009-06-17 无锡开普机械有限公司 水冷发动机机体

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853099A (en) * 1972-12-21 1974-12-10 Caterpillar Tractor Co Elastomeric sealing ring for cylinder liners
GB1525766A (en) * 1975-09-05 1978-09-20 Kloeckner Humboldt Deutz Ag Water-cooled reciprocating-piston internal combustion engine
DE2555942A1 (de) * 1975-12-12 1977-06-16 Daimler Benz Ag Wassergekuehlte mehrzylindrige brennkraftmaschine
CN1483929A (zh) * 2002-03-28 2004-03-24 Avl里斯脱有限公司 液冷式内燃机气缸套筒和气缸壳体
CN101349213A (zh) * 2008-09-03 2009-01-21 无锡开普机械有限公司 水冷发动机机体
CN201258794Y (zh) * 2008-09-03 2009-06-17 无锡开普机械有限公司 水冷发动机机体

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103522004A (zh) * 2012-07-04 2014-01-22 可立新实业有限公司 水冷式机车汽缸制法
DE102016213252A1 (de) * 2016-07-20 2018-01-25 Man Diesel & Turbo Se Brennkraftmaschine mit mindestens einem Zylinder, dessen Zylinderlaufbuchse über ein flüssiges Kühlmittel kühlbar ist
KR20180010134A (ko) * 2016-07-20 2018-01-30 만 디젤 앤 터보 에스이 액체 냉매를 통해 실린더 라이너를 냉각시킬 수 있는 적어도 하나의 실린더를 갖춘 내연 기관
KR102455163B1 (ko) * 2016-07-20 2022-10-14 만 에너지 솔루션즈 에스이 액체 냉매를 통해 실린더 라이너를 냉각시킬 수 있는 적어도 하나의 실린더를 갖춘 내연 기관
CH713618A1 (de) * 2017-03-22 2018-09-28 Liebherr Machines Bulle Sa Flüssigkeitsgekühlter Verbrennungsmotor.
US10662857B2 (en) 2017-03-22 2020-05-26 Liebherr Machines Bulle Sa Liquid-cooled internal combustion engine
US11248514B2 (en) 2017-03-22 2022-02-15 Liebherr Machines Bulle Sa Liquid-cooled internal combustion engine
CN114382605A (zh) * 2021-12-31 2022-04-22 江苏紫金动力股份有限公司 一种高性能柴油机缸套及其生产工艺

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