WO2020133047A1 - 发动机及其发动机冷却结构 - Google Patents

发动机及其发动机冷却结构 Download PDF

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Publication number
WO2020133047A1
WO2020133047A1 PCT/CN2018/124289 CN2018124289W WO2020133047A1 WO 2020133047 A1 WO2020133047 A1 WO 2020133047A1 CN 2018124289 W CN2018124289 W CN 2018124289W WO 2020133047 A1 WO2020133047 A1 WO 2020133047A1
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Prior art keywords
water
chamber
cooling structure
engine cooling
cavity
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PCT/CN2018/124289
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English (en)
French (fr)
Inventor
李楠
任忠生
申加伟
王有治
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潍柴动力股份有限公司
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Priority to PCT/CN2018/124289 priority Critical patent/WO2020133047A1/zh
Publication of WO2020133047A1 publication Critical patent/WO2020133047A1/zh

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    • 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
    • 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
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps

Definitions

  • the present invention relates to the technical field of engine equipment, and more specifically, to an engine cooling structure and an engine.
  • the present invention provides an engine cooling structure to facilitate a reasonable layout.
  • the invention also provides an engine to which the above engine cooling structure is applied.
  • the present invention provides the following technical solutions:
  • An engine cooling structure includes a water pump, a cylinder liner, a body, a cylinder head and a water outlet pipe,
  • a body water cavity is formed between the body and the cylinder sleeve, and the body water cavity is located on the side of the body close to the cylinder head; the body water cavity includes an upper water cavity and a water cavity arranged in order from top to bottom.
  • the lower water chamber, the flow area of the upper water chamber is smaller than the flow area of the lower water chamber;
  • the body has a body water distribution cavity, and the body water distribution cavity is located on the side of the cooling water cavity;
  • the water outlet of the water pump communicates with the water distribution cavity of the body, the water cavity of the body, the water cavity of the cylinder head and the water cavity of the water outlet pipe in sequence.
  • the water outlet pipe is fixed on the cylinder head
  • the water cavity of the water outlet pipe is higher than the water cavity of the cylinder head.
  • the overall height H of the body water chamber and the height H'of the cylinder liner are provided in the above engine cooling structure.
  • the upper water chamber is in communication with the lower water chamber
  • the water distribution cavity of the machine body communicates with the lower water cavity; the upper water cavity communicates with the water cavity of the cylinder head.
  • the inner surface of the cylinder sleeve mounting hole of the machine body for mounting the cylinder sleeve has a drain cavity groove, and the drain cavity groove and the outer surface of the cylinder sleeve form the drain cavity ;
  • the outer surface of the cylinder liner has an upper water cavity groove, the upper water cavity groove and the inner surface of the cylinder liner mounting hole form the upper water cavity;
  • the inner surface of the cylinder liner mounting hole of the machine body for installing the cylinder liner has an upper water cavity groove, and the upper water cavity groove and the outer surface of the cylinder liner form the upper water cavity;
  • the outer surface of the sleeve has a drain cavity, and the drain cavity and the inner surface of the cylinder sleeve mounting hole form the drain cavity.
  • the above engine cooling structure further includes an EGR cooler
  • the EGR cooler is fixed on the water outlet pipe.
  • the EGR cooler is fixed to the water outlet pipe by bolts.
  • the above-mentioned engine cooling structure further includes a multi-directional pipe joint
  • the multi-directional pipe joint has a first water inlet that communicates with the water outlet of the cooler, a second water inlet that communicates with the water outlet of the water outlet, and a third for communicating with the return water pipe of the retarder Water inlet and water outlet for communicating with the thermostat chamber of the thermostat.
  • one or more of the first water inlet, the second water inlet, the third water inlet, and the water outlet are provided with a vulcanized rubber tube for sealing connection.
  • the present invention also provides an engine including an engine cooling structure, the engine cooling structure being the engine cooling structure as described in any one of the above.
  • the engine cooling structure provided by the present invention starts the water pump during the cooling process, and the cooling water sequentially passes through the body water distribution chamber, the body water chamber, the water chamber of the cylinder head 8 and the water chamber of the outlet pipe, and flows upward from the bottom.
  • the body water chamber is located on the side of the body close to the cylinder head; the body water chamber includes the upper water chamber and the lower water chamber arranged in order from top to bottom.
  • the flow area of the upper water chamber is smaller than that of the lower water chamber, so as to ensure that it does not increase significantly Under the premise of water flow and no separate processing of the machine body, it is important to strengthen the cooling effect of the upper water chamber part to meet the cooling needs of the high position of the cylinder liner.
  • the present invention also provides an engine, including an engine cooling structure.
  • the engine cooling structure is any one of the engine cooling structures described above. Since the above-mentioned engine cooling structure has the above-mentioned technical effects, the engine with the above-mentioned engine cooling structure should also have the same technical effects, and will not be described here one by one.
  • FIG. 1 is a combined structural view of a water pump, a water distribution chamber of a machine body, and a cylinder liner provided by an embodiment of the present invention
  • FIG. 2 is a first partial cross-sectional view of an engine cooling structure provided by an embodiment of the present invention
  • FIG. 3 is a second partial cross-sectional view of an engine cooling structure provided by an embodiment of the present invention.
  • FIG. 4 is a first schematic structural view of an engine cooling structure provided by an embodiment of the present invention.
  • FIG. 5 is a first schematic structural view of an engine cooling structure provided by an embodiment of the present invention.
  • the embodiment of the invention discloses an engine cooling structure, which is convenient for reasonable layout.
  • the invention also provides an engine to which the above engine cooling structure is applied.
  • an embodiment of the present invention provides an engine cooling structure, including a water pump 1, a cylinder liner 3, a body 6, a cylinder head 8 and a water outlet pipe 7, a body is formed between the body 6 and the cylinder liner 3 Water chamber, the body water chamber is located on the side of the body 6 close to the cylinder head 8; the body water chamber includes the upper water chamber 4 and the lower water chamber 5 arranged in order from top to bottom, the flow area of the upper water chamber 4 is smaller than the flow of the lower water chamber 5 Area; the body 6 has a body water chamber 2, the body water chamber 2 is located on the side of the cooling water chamber; the water outlet of the water pump 1 and the body water chamber 2, the body water chamber, the water chamber of the cylinder head 8 and the water outlet pipe 7 The water chambers are in turn connected.
  • the water pump 1 is started, and the cooling water sequentially passes through the body water chamber 2, the body water chamber, the water chamber of the cylinder head 8 and the water chamber of the outlet pipe 7 from bottom to top flow. Since the body water chamber is located on the side of the body 6 close to the cylinder head 8; the body water chamber includes the upper water chamber 4 and the lower water chamber 5 arranged in order from top to bottom. The flow area of the upper water chamber 4 is smaller than that of the lower water chamber 5, In order to ensure that the water flow is not greatly increased and the machine body is not processed separately, the cooling effect of the upper water chamber 4 part is emphasized to meet the cooling needs of the cylinder liner 3 at a high position.
  • the water chamber of the machine body communicates with the water chamber of the cylinder head 8, the cooling water that cools the cylinder liner 3 enters the water chamber of the cylinder head 8, the cylinder head 8 continues to be cooled, and the water that cools the cylinder head 8 flows in In the water outlet pipe 7, the casting difficulty of the machine body is effectively reduced, thereby improving the compactness of the structure.
  • the up-down direction in the present invention is the up-down direction of the engine cooling structure when it is normally placed. That is the direction shown in Figures 2 and 3.
  • the water outlet pipe 7 is fixed on the cylinder head 8; and the water chamber of the water outlet pipe 7 is higher than the water chamber of the cylinder head 8.
  • the engine is discharged at a high position, and the outlet pipe 7 is fixed on the cylinder head 8, which facilitates the fixing of the outlet pipe 7, avoids the integration of the outlet pipe 7 and the body 6, and prevents the outlet pipe 7 from being fixed to the body 6 by bolts.
  • the situation that the whole machine is not compact effectively reduces the difficulty of casting the body 6 and frees up the space for the exhaust system; and the outlet cavity of the outlet pipe 7 is higher than that of the cylinder head 8 so that gas can enter the outlet pipe 7 No need to add a bleed line on the cylinder head 8, further simplifying the structure.
  • the overall height H of the water chamber of the machine body the height H'of the cylinder liner 3; H ⁇ H'/2.
  • the overall height H of the body water chamber is not greater than half of the height H'of the cylinder liner 3, and the body water chamber communicates with the water chamber of the cylinder head 8 so that the body water chamber is located in the upper half of the cylinder liner 3, focusing on the cylinder liner
  • the upper part of 3 is cooled to ensure the cooling effect.
  • the upper water chamber 4 communicates with the lower water chamber 5; the body water distribution chamber 2 communicates with the lower water chamber 5; the upper water chamber 4 communicates with the water chamber of the cylinder head 8.
  • the cooling water passes through the lower water chamber 5, the upper water chamber 4 and the cylinder head 8 in sequence, because the flow area of the upper water chamber 4 is smaller than the flow area of the lower water chamber 5, so as to ensure the emphasis on the cooling of the upper part of the cylinder liner 3 .
  • the upper water chamber 4 and the lower water chamber 5 communicate with the body water distribution chamber 2, and the cooling water passing through the upper water chamber 4 and the lower water chamber 5 enters the water chamber of the cylinder head 8, that is, the upper water chamber 4 and the lower water chamber 5 It is a parallel waterway in the process of waterway.
  • the inner surface of the cylinder sleeve mounting hole of the body 6 for installing the cylinder sleeve 3 has a drain cavity groove, and the drain cavity groove and the outer surface of the cylinder sleeve 3 form a drain cavity 5; the outer surface of the cylinder sleeve 3 has an upper surface
  • the water cavity groove, the upper water cavity groove and the inner surface of the cylinder sleeve mounting hole form the upper water cavity 4.
  • the inner surface of the cylinder sleeve mounting hole of the body 6 for installing the cylinder sleeve 3 has a water supply cavity groove, and the water supply cavity groove and the outer surface of the cylinder sleeve 3 form a water supply cavity 4; the cylinder sleeve 3
  • the outer surface of the is provided with a drain cavity, and the drain cavity and the inner surface of the cylinder sleeve mounting hole form a drain cavity 5.
  • the engine cooling structure provided by the embodiment of the present invention further includes an EGR cooler 10; the EGR cooler 10 is fixed on the water outlet pipe 7.
  • the EGR cooler 10 is fixed to the water outlet pipe 7 by bolts 11.
  • the water outlet pipe of the engine, the water outlet pipe of the EGR cooler, and the water outlet pipe of the oil cooler (return pipe of the retarder) are all separately connected to the thermostat chamber by pipes, which occupy a large space. There is a high risk of leakage at multiple seal points.
  • the engine cooling structure further includes a multi-directional pipe joint 15; the multi-directional pipe joint 15 has a first water inlet communicating with the water outlet of the cooler 10, and a second water inlet communicating with the water outlet of the water outlet pipe 7 3. A third water inlet for communicating with the return pipe 12 of the retarder and a water outlet for communicating with the thermostat chamber 14 of the thermostat.
  • the layout space is fully utilized to minimize the gap between the components, and the number of components is reduced.
  • the water outlet of the cooler 10, the water outlet of the water outlet pipe 7, and the return of the retarder are completed through the multidirectional pipe joint.
  • the communication between the water pipe 12 and the thermostat chamber 14 of the thermostat simplifies the structure in order to further improve the compactness of the layout.
  • one or several of the first water inlet, the second water inlet, the third water inlet, and the water outlet are provided with a vulcanized rubber tube 13 for sealing connection.
  • An embodiment of the present invention also provides an engine, including an engine cooling structure.
  • the engine cooling structure is any of the engine cooling structures described above. Since the above-mentioned engine cooling structure has the above-mentioned technical effects, the engine with the above-mentioned engine cooling structure should also have the same technical effects, and will not be described here one by one.

Abstract

一种发动机冷却结构，包括水泵（1）、缸套（3）、机体（6）、缸盖（8）及出水管（7），机体（6）及缸套（3）之间形成机体水腔，机体水腔位于机体（6）靠近缸盖（8）的一侧；机体水腔包括由上至下依次布置的上水腔（4）及下水腔（5），上水腔（4）的流通面积小于下水腔（5）的流动面积；机体（6）内具有机体布水腔（2），机体布水腔（2）位于冷却水腔的侧面；水泵（1）的出水口与机体布水腔（2）、机体水腔、缸盖（8）的水腔及出水管（7）的水腔依次连通；还公开一种发动机。该发动机冷却结构及发动机降低了机体铸造难度，提高了结构紧凑性。

Description

发动机及其发动机冷却结构 技术领域
本发明涉及发动机设备技术领域，更具体地说，涉及一种发动机冷却结构，还涉及一种发动机。
背景技术
现有的冷却液分配方式通常采用水泵出水机体进水并对整个缸套进行大范围冷却；出水采用缸盖出水引导至机体，出水腔体或者集成在机体上，或者单独制作出水管安装在机体上；EGR(Exhaust Gas Recirculation，排气再循环)冷却器单独支架固定，其进回水采用单独管路连接。
因机体进水需对大部分缸套进行冷却，若需要满足缸套高位进行冷却需要增加水泵流量，造成浪费；或者，需额外引入一路水流强化高位冷却液流速，增加机体的加工成本，发动机冷却结构的布局不合理。
因此，如何合理布局，已成为本领域技术人员亟待解决的问题。
发明内容
有鉴于此，本发明提供一种发动机冷却结构，以便于合理布局。本发明还提供一种发动机，其应用了上述发动机冷却结构。
为实现上述目的，本发明提供如下技术方案：
一种发动机冷却结构，包括水泵、缸套、机体、缸盖及出水管，
所述机体及所述缸套之间形成机体水腔，所述机体水腔位于所述机体靠近所述缸盖的一侧；所述机体水腔包括由上至下依次布置的上水腔及下水腔，所述上水腔的流通面积小于所述下水腔的流动面积；
所述机体内具有机体布水腔，所述机体布水腔位于所述冷却水腔的侧面；
所述水泵的出水口与所述机体布水腔、所述机体水腔、所述缸盖的水腔及 所述出水管的水腔依次连通。
优选地，上述发动机冷却结构中，所述出水管固定于所述缸盖上；
所述出水管的水腔高于所述缸盖的水腔。
优选地，上述发动机冷却结构中，所述机体水腔的整体高度H，所述缸套的高度H’；
H≤H’/2。
优选地，上述发动机冷却结构中，所述上水腔与所述下水腔连通；
所述机体布水腔与所述下水腔连通；所述上水腔与所述缸盖的水腔连通。
优选地，上述发动机冷却结构中，所述机体用于安装所述缸套的缸套安装孔的内表面具有下水腔槽，所述下水腔槽与所述缸套的外表面形成所述下水腔；所述缸套的外表面具有上水腔槽，所述上水腔槽与所述缸套安装孔的内表面形成所述上水腔；
或，所述机体用于安装所述缸套的缸套安装孔的内表面具有上水腔槽，所述上水腔槽与所述缸套的外表面形成所述上水腔；所述缸套的外表面具有下水腔槽，所述下水腔槽与所述缸套安装孔的内表面形成所述下水腔。
优选地，上述发动机冷却结构中，还包括EGR冷却器；
所述EGR冷却器固定于所述出水管上。
优选地，上述发动机冷却结构中，所述EGR冷却器通过螺栓固定于所述出水管上。
优选地，上述发动机冷却结构中，还包括多向管接头；
所述多向管接头具有与所述冷却器的出水口连通的第一进水口、与所述出水管的出水口连通的第二进水口、用于与缓速器的回水管连通的第三进水口及用于与节温器的节温器室连通的出水口。
优选地，上述发动机冷却结构中，所述第一进水口、所述第二进水口、所述第三进水口及所述出水口中的一个或几个上设置有用于密封连接的硫化橡胶管。
本发明还提供了一种发动机，包括发动机冷却结构，所述发动机冷却结构为如上述任一项所述的发动机冷却结构。
本发明提供的发动机冷却结构，在冷却过程中，启动水泵，冷却水依次经过机体布水腔、机体水腔、缸盖8的水腔及出水管的水腔，由下向上流动。由于机体水腔位于机体靠近缸盖的一侧；机体水腔包括由上至下依次布置的上水腔及下水腔，上水腔的流通面积小于下水腔的流动面积，以便于保证不大幅增加水流量且不单独加工机体的前提下，重点强化上水腔部分的冷却效果，满足缸套高位进行冷却需要。避免额外引入水流而增加机体的加工成本，合理的布局发动机冷却结构。并且，机体水腔与缸盖的水腔的连通，对缸套进行冷却后的冷却水进入缸盖8的水腔，对缸盖进行继续冷却，而对缸盖冷却的水流入出水管中，有效降低了机体铸造难度，从而提高结构紧凑性。通过上述设置，以便于发动机冷却结构的合理布局。
本发明还提供了一种发动机，包括发动机冷却结构，发动机冷却结构为如上述任一种发动机冷却结构。由于上述发动机冷却结构具有上述技术效果，具有上述发动机冷却结构的发动机也应具有同样地技术效果，在此不再一一累述。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的水泵、机体布水腔及缸套的组合结构视图；
图2为本发明实施例提供的发动机冷却结构的第一局部剖视图；
图3为本发明实施例提供的发动机冷却结构的第二局部剖视图；
图4为本发明实施例提供的发动机冷却结构的第一结构示意图；
图5为本发明实施例提供的发动机冷却结构的第一结构示意图。
具体实施方式
本发明实施例公开了一种发动机冷却结构，便于合理布局。本发明还提供一种发动机，其应用了上述发动机冷却结构。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1-图3所示，本发明实施例提供一种发动机冷却结构，包括水泵1、缸套3、机体6、缸盖8及出水管7，机体6及缸套3之间形成机体水腔，机体水腔位于机体6靠近缸盖8的一侧；机体水腔包括由上至下依次布置的上水腔4及下水腔5，上水腔4的流通面积小于下水腔5的流动面积；机体6内具有机体布水腔2，机体布水腔2位于冷却水腔的侧面；水泵1的出水口与机体布水腔2、机体水腔、缸盖8的水腔及出水管7的水腔依次连通。
本发明实施例提供的发动机冷却结构，在冷却过程中，启动水泵1，冷却水依次经过机体布水腔2、机体水腔、缸盖8的水腔及出水管7的水腔，由下向上流动。由于机体水腔位于机体6靠近缸盖8的一侧；机体水腔包括由上至下依次布置的上水腔4及下水腔5，上水腔4的流通面积小于下水腔5的流动面积，以便于保证不大幅增加水流量且不单独加工机体的前提下，重点强化上水腔4部分的冷却效果，满足缸套3高位进行冷却需要。避免额外引入水流而增加机体的加工成本，合理的布局发动机冷却结构。并且，机体水腔与缸盖8的水腔的连通，对缸套3进行冷却后的冷却水进入缸盖8的水腔，对缸盖8进行继续冷却，而对缸盖8冷却的水流入出水管7中，有效降低了机体铸造难度，从而提高结构紧凑性。通过上述设置，以便于发动机冷却结构的合理布局。
可以理解的是，本发明中的上下方向为发动机冷却结构在正常放置状态时的上下方向。即如图2及图3所示的方向。
进一步地，出水管7固定于缸盖8上；并且，出水管7的水腔高于缸盖8的水腔。通过上述设置，使得发动机高位出水，出水管7固定在缸盖8上，方便了出水管7的固定，避免了出水管7与机体6集成，也避免出水管7通过螺栓固定于机体6而带来的整机不紧凑的情况，有效降低了机体6的铸造难度， 解放了排气系统布置空间；并且，出水管7的出水腔高于缸盖8的水腔，以便于气体进入出水管7，无需在缸盖8上增加放气管路，进一步简化了结构。
机体水腔的整体高度H，缸套3的高度H’；H≤H’/2。机体水腔的整体高度H不大于缸套3的高度H’的一半，并且，机体水腔与缸盖8的水腔连通，使得机体水腔位于缸套3的上半部，着重对缸套3的上半部进行冷却，确保了冷却效果。
进一步地，上水腔4与下水腔5连通；机体布水腔2与下水腔5连通；上水腔4与缸盖8的水腔连通。通过上述设置，使得冷却水依次经过下水腔5、上水腔4及缸盖8，由于上水腔4的流通面积小于下水腔5的流动面积，以便于确保对缸套3的上部的着重冷却。
也可以使上水腔4及下水腔5均与机体布水腔2连通，经过上水腔4及下水腔5的冷却水进入缸盖8的水腔中，即，上水腔4及下水腔5在水路过程中为并联水路。
如图2所示，机体6用于安装缸套3的缸套安装孔的内表面具有下水腔槽，下水腔槽与缸套3的外表面形成下水腔5；缸套3的外表面具有上水腔槽，上水腔槽与缸套安装孔的内表面形成上水腔4。通过上述设置，使得缸套3安装于机体6的缸套安装孔后，形成上水腔4及下水腔5。在本实施例中，上水腔槽与下水腔槽部分重叠，以便于使得上水腔4与下水腔5连通。
在另一种实施例中，机体6用于安装缸套3的缸套安装孔的内表面具有上水腔槽，上水腔槽与缸套3的外表面形成上水腔4；缸套3的外表面具有下水腔槽，下水腔槽与缸套安装孔的内表面形成下水腔5。
如图4及图5所示，本发明实施例提供的发动机冷却结构还包括EGR冷却器10；EGR冷却器10固定于出水管7上。EGR冷却器10通过螺栓11固定于出水管7上。通过上述设置，进一步提高布局地更紧凑。
现有的发动机冷却结构中，发动机的出水管、EGR冷却器出水管及机油冷却器出水管(缓速器的回水管)均单独用管路连接至节温器室，管路占据空间大，密封点多泄漏风险高。为了提高结构紧凑性，发动机冷却结构还包括多向管接头15；多向管接头15具有与冷却器10的出水口连通的第一进水口、 与出水管7的出水口连通的第二进水口、用于与缓速器的回水管12连通的第三进水口及用于与节温器的节温器室14连通的出水口。通过上述设置，充分利用布置空间做到零部件之间间隙最小，并且减少了零部件数量，通过多向管接头15完成冷却器10的出水口、出水管7的出水口、缓速器的回水管12及节温器的节温器室14的连通，通过简化结构，以便于进一步提高布局地紧凑性。
为了提高密封可靠性，第一进水口、第二进水口、第三进水口及出水口中的一个或几个上设置有用于密封连接的硫化橡胶管13。
本发明实施例还提供了一种发动机，包括发动机冷却结构，发动机冷却结构为如上述任一种发动机冷却结构。由于上述发动机冷却结构具有上述技术效果，具有上述发动机冷却结构的发动机也应具有同样地技术效果，在此不再一一累述。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (10)

  1. 一种发动机冷却结构，包括水泵(1)、缸套(3)、机体(6)、缸盖(8)及出水管(7)，其特征在于，
    所述机体(6)及所述缸套(3)之间形成机体水腔，所述机体水腔位于所述机体(6)靠近所述缸盖(8)的一侧；所述机体水腔包括由上至下依次布置的上水腔(4)及下水腔(5)，所述上水腔(4)的流通面积小于所述下水腔(5)的流动面积；
    所述机体(6)内具有机体布水腔(2)，所述机体布水腔(2)位于所述冷却水腔的侧面；
    所述水泵(1)的出水口与所述机体布水腔(2)、所述机体水腔、所述缸盖(8)的水腔及所述出水管(7)的水腔依次连通。
  2. 根据权利要求1所述的发动机冷却结构，其特征在于，所述出水管(7)固定于所述缸盖(8)上；
    所述出水管(7)的水腔高于所述缸盖(8)的水腔。
  3. 根据权利要求1所述的发动机冷却结构，其特征在于，所述机体水腔的整体高度H，所述缸套(3)的高度H’；
    H≤H’/2。
  4. 根据权利要求1-3任一项所述的发动机冷却结构，其特征在于，所述上水腔(4)与所述下水腔(5)连通；
    所述机体布水腔(2)与所述下水腔(5)连通；所述上水腔(4)与所述缸盖(8)的水腔连通。
  5. 根据权利要求1所述的发动机冷却结构，其特征在于，所述机体(6)用于安装所述缸套(3)的缸套安装孔的内表面具有下水腔槽，所述下水腔槽与所述缸套(3)的外表面形成所述下水腔(5)；所述缸套(3)的外表面具有上水腔槽，所述上水腔槽与所述缸套安装孔的内表面形成所述上水腔(4)；
    或，所述机体(6)用于安装所述缸套(3)的缸套安装孔的内表面具有上水腔槽，所述上水腔槽与所述缸套(3)的外表面形成所述上水腔(4)；所述缸套(3)的外表面具有下水腔槽，所述下水腔槽与所述缸套安装孔的内表面 形成所述下水腔(5)。
  6. 根据权利要求1所述的发动机冷却结构，其特征在于，还包括EGR冷却器(10)；
    所述EGR冷却器(10)固定于所述出水管(7)上。
  7. 根据权利要求6所述的发动机冷却结构，其特征在于，所述EGR冷却器(10)通过螺栓(11)固定于所述出水管(7)上。
  8. 根据权利要求1所述的发动机冷却结构，其特征在于，还包括多向管接头(15)；
    所述多向管接头(15)具有与所述冷却器(10)的出水口连通的第一进水口、与所述出水管(7)的出水口连通的第二进水口、用于与缓速器的回水管(12)连通的第三进水口及用于与节温器的节温器室(14)连通的出水口。
  9. 根据权利要求8所述的发动机冷却结构，其特征在于，所述第一进水口、所述第二进水口、所述第三进水口及所述出水口中的一个或几个上设置有用于密封连接的硫化橡胶管(13)。
  10. 一种发动机，其特征在于，包括发动机冷却结构，所述发动机冷却结构为权利要求1-9任意一项所述的发动机冷却结构。
PCT/CN2018/124289 2018-12-27 2018-12-27 发动机及其发动机冷却结构 WO2020133047A1 (zh)

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