CN103696866A - Internal combustion engine and machine body group of internal combustion engine - Google Patents
Internal combustion engine and machine body group of internal combustion engine Download PDFInfo
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- CN103696866A CN103696866A CN201310653772.0A CN201310653772A CN103696866A CN 103696866 A CN103696866 A CN 103696866A CN 201310653772 A CN201310653772 A CN 201310653772A CN 103696866 A CN103696866 A CN 103696866A
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- cooling water
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Abstract
The invention discloses a machine body group of an internal combustion engine. The machine body group comprises a machine body (1), a cylinder sleeve (2) and a cylinder cover, wherein a cylinder sleeve cooling water cavity is arranged between the cylinder sleeve (2) and the machine body (1), the cylinder cover is provided with a cylinder cover cooling water cavity, the cylinder sleeve cooling water cavity comprises an upper cooling water cavity (3-1) and a lower cooling water cavity (3-2), and the upper cooling water cavity (3-1) is positioned between a support shoulder (2-1) and an upper waist band (2-2) of the cylinder sleeve (2). The machine body group has the advantages that the cooling efficiency of the upper part of the cylinder sleeve can be obviously improved through a cooling water jacket, so the work temperature of the upper part of the cylinder sleeve is effectively reduced, and the stability and the reliability of the work performance are ensured. The invention also discloses the internal combustion engine provided with the machine body group.
Description
Technical field
The present invention relates to technical field of internal combustion engines, particularly the body group of the internal-combustion engine such as diesel engine.The invention still further relates to the internal-combustion engine that is provided with described body group.
Background technique
Body group is mainly comprised of body, cylinder liner, cylinder head, cylinder liner, lower crankcase etc., and cylinder sleeve is the abbreviation of cylinder liner, and it is embedded in the cylinder barrel of body, jointly forms the firing chamber of internal-combustion engine with piston and cylinder cap.
Cylinder sleeve is divided into dry sleeve and the large class of wet sleeve two, the cylinder liner that does not directly contact cooling water is dry sleeve, the cylinder liner directly contacting with cooling water is wet sleeve, wet sleeve (hereinafter to be referred as cylinder sleeve) mainly by and body between the cooling water chamber that forms dispel the heat, during work, cooling liquid enters cooling water chamber from water tank (or radiator) under the pressure-acting of water pump, then upwards enter the cooling water chamber of cylinder head, from the osculum of cylinder head, discharge again, enter outlet pipe, finally get back to water tank, cooling jacket consists of jointly the cooling water chamber of cylinder sleeve and cylinder cap.
Please refer to Fig. 1, Fig. 1 is the partial structurtes schematic diagram of existing cooling water of internal combustion engine cover.
As shown in the figure, overhead type cylinder sleeve 1 ＇ adopts the mode of location, top, its support shoulders 2 ＇ are pressed in body 5 ＇, and position by upper waistband 4 ＇ and lower waistband (not shown), support shoulders 2 ＇ belows are one section of long upper waistband 4 ＇ after tool withdrawal groove 3 ＇, upper waistband 4 ＇ directly contact with body 5 ＇, cylinder sleeve between upper waistband 4 ＇ and lower waistband and body 5 ＇ Spielpassung, form cooling water chamber 6 ＇, water distribution channel approaches cylinder sleeve 1 ＇ bottom, cooling liquid flows from bottom to top, cooling cylinder sleeve 1 ＇, the cooling liquid that flows through cylinder sleeve 1 ＇ flows directly into cylinder cap by water channel hole, to cylinder cap, carry out cooling.
Due to cylinder sleeve 1 upper area of ＇ top in firing chamber, the heat load of therefore bearing is the highest, and edge under upper waistband 4 ＇ next-door neighbour support shoulders 2 ＇ of above-mentioned cylinder sleeve 1 ＇, under the partition effect of upper waistband 4 ＇, just separated with cylinder sleeve 1 ＇ after upper waistband 4 ＇ of cooling liquid arrival, no longer direct cooling cylinder sleeve 1 ＇, the cooling capacity that causes cylinder sleeve 1 ＇ top relatively a little less than, cooling exist bad in the situation that lost efficacy dangerous.
Therefore, how improving the cooling effectiveness on body group cylinder sleeve top, is those skilled in the art's technical issues that need to address.
Summary of the invention
The first object of the present invention is to provide a kind of internal combustion (IC) engine airframe group.The cooling jacket of this body group can significantly improve the cooling effectiveness on cylinder sleeve top, thereby effectively reduces the operating temperature on cylinder sleeve top, guarantees its stable and reliable working performance.
The second object of the present invention is to provide a kind of internal-combustion engine that is provided with described body group.
For achieving the above object, the invention provides a kind of internal combustion (IC) engine airframe group, comprise body, cylinder sleeve and cylinder cap, between described cylinder sleeve and body, be provided with jacket-cooling water chamber, described cylinder cap is provided with Cooling of Cylinder Head water cavity, described jacket-cooling water chamber comprises top cooling water chamber and bottom cooling water chamber, and described top cooling water chamber is between the support shoulders and upper waistband of cylinder sleeve.
Preferably, described top cooling water chamber is formed by the annular groove and the cooperation of the body inwall above upper waistband that are positioned at described support shoulders below on outer wall of cylinder jachet.
Preferably, described top cooling water chamber is formed by the annular groove and the cooperation of the outer wall of cylinder jachet above upper waistband that are positioned at described support shoulders below on body inwall.
Preferably, described bottom cooling water chamber is upwards divided into two-way, and the branch road of leading up to water inlet duct is communicated with top cooling water chamber, and the cylinder cap of separately leading up to water inlet duct is communicated with Cooling of Cylinder Head water cavity.
Preferably, described top cooling water chamber is communicated with the outlet pipe water cavity on body by branch road water outlet duct.
Preferably, described Cooling of Cylinder Head water cavity is communicated with the outlet pipe water cavity on body by cylinder cap water outlet duct.
Preferably, described branch road water inlet duct and branch road water outlet duct are radial direction through hole, and described branch road water inlet duct is opened on the body of described cylinder sleeve one side, and described branch road water outlet duct is opened on the body of described cylinder sleeve opposite side.
Preferably, the axial length of described top cooling water chamber is greater than the axial length of described upper waistband.
Preferably, described cylinder sleeve is machining shaping cylinder sleeve.
For realizing above-mentioned the second object, the present invention also provides a kind of internal-combustion engine, comprises body group, connecting rod, distribution device, oil supply system, lubrication system, cooling system and starting arrangement, and described body group is the internal combustion (IC) engine airframe group described in above-mentioned any one.
Body group provided by the invention has been done further improvement to cooling jacket, the upper waistband position of cylinder sleeve moves down, after coordinating with body, form two cooling water chambeies, respectively top cooling water chamber and bottom cooling water chamber, top cooling water chamber is between cylinder sleeve supporting shoulder and upper waistband, be specifically designed to the highest cylinder sleeve top of heat of cooling load, during work, cooling water is cooling cylinder sleeve middle and lower part first, then cooling water shunting, a part directly branches to cylinder sleeve supporting shoulder bottom, cooling cylinder cover top, another part cooling water branches to cylinder cap, to cylinder cap, carry out cooling, it is simple in structure, reliability is high, can effectively improve the cooling effectiveness of cylinder sleeve, reduce the operating temperature in territory, heat load highest region, cylinder sleeve top.
In a kind of preferred version, described cylinder sleeve machining is shaped, mach mode can well be controlled the wall thickness of cooling water chamber, so cooling water chamber can design very thinly, be conducive to shorten cylinder core distance, and the cylinder sleeve inside and outside wall regular shape shaping, drum shape can be regarded approx as, be very beneficial for organizing current, thereby improve cooling effectiveness.
In another kind of preferred version, the axial length of described top cooling water chamber is greater than the axial length of described upper waistband, that is to say, after waistband is used in cylinder sleeve location moving down, shortened again its position length, like this, can effectively increase cylinder sleeve cooled region, further improve cooling effectiveness.
Internal-combustion engine provided by the invention is provided with described body group, and because described body group has above-mentioned technique effect, the internal-combustion engine that is provided with this body group also possesses corresponding technique effect.
Accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of existing cooling water of internal combustion engine cover;
Fig. 2 is the partial structurtes schematic diagram of internal combustion (IC) engine airframe group provided by the present invention;
Fig. 3 is the plan view of Fig. 2;
Fig. 4 is the A-A view of Fig. 2;
Fig. 5 is the B-B view of Fig. 2;
Fig. 6 is the local enlarged diagram at C position in Fig. 2.
In Fig. 1:
Upper waistband 4 ＇ body 5 ＇ cooling water chamber 6 ＇ of cylinder sleeve 1 ＇ support shoulders 2 ＇ tool withdrawal groove 3 ＇
In Fig. 2 to Fig. 6:
1. body 2. cylinder sleeve 2-1. support shoulders 2-2. go up cooling water chamber 3-2. bottom, waistband 3-1. top cooling water chamber 4. branch roads water inlet duct 5. cylinder caps water inlet duct 6. branch road water outlet duct 7. cylinder cap water outlet duct 8. outlet pipe water cavities
Embodiment
In order to make those skilled in the art person understand better the present invention program, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 2, Fig. 3, Fig. 6, Fig. 2 is the partial structurtes schematic diagram of internal combustion (IC) engine airframe group provided by the present invention; Fig. 3 is the plan view of Fig. 2; Fig. 6 is the local enlarged diagram at C position in Fig. 2.
In a kind of embodiment, internal combustion (IC) engine airframe group provided by the invention is mainly comprised of body 1, cylinder sleeve 2 and cylinder cap (not shown) etc.
Between cylinder sleeve 2 and body 1, be provided with jacket-cooling water chamber, cylinder cap is provided with Cooling of Cylinder Head water cavity, jacket-cooling water chamber is divided into again top cooling water chamber 3-1 and bottom cooling water chamber 3-2, and wherein, top cooling water chamber 3-1 is between the support shoulders 2-1 and upper waistband 2-2 of cylinder sleeve 2.
Particularly, cooling water chamber 3-1 in top is formed by the annular groove and the cooperation of the body inwall above upper waistband 2-2 that are positioned at support shoulders 2-1 below on cylinder sleeve 2 outer walls.
Certainly, cooling water chamber 3-1 in top also can be formed by the annular groove and the cooperation of the outer wall of cylinder jachet above upper waistband 2-2 that are positioned at support shoulders 2-1 below on body inwall.
Bottom cooling water chamber 3-2 is upwards divided into two-way, the branch road of leading up to water inlet duct 4 is communicated with top cooling water chamber 3-1, the cylinder cap of separately leading up to water inlet duct 5 is communicated with Cooling of Cylinder Head water cavity, top cooling water chamber 3-1 is communicated with the outlet pipe water cavity 8 on body 1 by branch road water outlet duct 6, and Cooling of Cylinder Head water cavity is communicated with outlet pipe water cavity 8 by cylinder cap water outlet duct 7.
Please refer to Fig. 4, Fig. 5, the A-A view that Fig. 4 is Fig. 2; Fig. 5 is the B-B view of Fig. 2.
As shown in the figure, branch road water inlet duct 4 and branch road water outlet duct 6 are radial direction through hole, and branch road water inlet duct 4 is opened on the body 1 of cylinder sleeve 2 one sides, and branch road water outlet duct 6 is opened on the body 1 of cylinder sleeve 2 opposite sides.
In the present invention, the upper waistband 2-2 position of cylinder sleeve 2 moves down and shorter compared to its size of traditional cylinder sleeve, and the axial length of top cooling water chamber 3-1 is greater than the axial length of waistband 2-2.Like this, reserved on the one hand sufficient space and form top cooling water chamber 3-1 above upper waistband 2-2, made on the other hand cylinder sleeve 2 larger with the area of contact of cooling water, cooling effect is better.
In addition, cylinder sleeve 2 is machining shaping part, mach mode can well be controlled the wall thickness of cooling water chamber, so cooling water chamber can design very thinly, is conducive to shorten cylinder core distance, and the cylinder sleeve inside and outside wall regular shape shaping, surface quality is good, can regard approx drum shape as, be very beneficial for organizing current, thereby improve cooling effectiveness.
During work, cooling water of internal combustion engine enters cylinder sleeve bottom cooling water chamber 3-2 around via body water distribution channel, water intake is positioned at cylinder sleeve 2 middle and lower parts, the first cooling cylinder sleeve of cooling water 2 main body middle and lower parts, be divided into afterwards two-way: the branch road of leading up to water inlet duct 4 enters into the top cooling water chamber 3-1 of cylinder sleeve support shoulders below, the cylinder cap of separately leading up to water inlet duct 5 enters cylinder cap, cylinder cap is carried out cooling, and the last interflow of two-way cooling water is to outlet pipe water cavity 8.
The feature of top cooling water chamber 3-1 is between supporting shoulder 2-1 and upper waistband 2-2, namely go up waistband 2-2 and be positioned at the below of top cooling water chamber 3-1, cylinder sleeve 2 tops directly contact with cooling water with edge under cylinder sleeve support shoulders 2-1, can effectively improve the cooling effect in the serious region of heat load, cylinder sleeve top.
Certainly, above-described embodiment is only preferred version of the present invention, is specifically not limited to this, can make according to actual needs pointed adjustment on this basis, thereby obtains different mode of executions.For example, adopt other modes to form top cooling water chamber, or top Design of cooling Water jacket is become to other shapes etc., because mode in the cards is more, just illustrate no longer one by one here.
Except above-mentioned body group, the present invention also provides a kind of internal-combustion engine, it can be specifically diesel engine, mainly by body group, connecting rod, distribution device, oil supply system, lubrication system, cooling system and starting arrangement etc., formed, wherein body group is internal combustion (IC) engine airframe group mentioned above, all the other structures please refer to prior art, repeat no more herein.
Above internal-combustion engine provided by the present invention and body group thereof are described in detail.Applied specific case herein principle of the present invention and mode of execution are set forth, above embodiment's explanation is just for helping to understand core concept of the present invention.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (10)
1. an internal combustion (IC) engine airframe group, comprise body (1), cylinder sleeve (2) and cylinder cap, between described cylinder sleeve (2) and body (1), be provided with jacket-cooling water chamber, described cylinder cap is provided with Cooling of Cylinder Head water cavity, it is characterized in that, described jacket-cooling water chamber comprises top cooling water chamber (3-1) and bottom cooling water chamber (3-2), and described top cooling water chamber (3-1) is positioned between the support shoulders (2-1) and upper waistband (2-2) of cylinder sleeve (2).
2. internal combustion (IC) engine airframe group according to claim 1, is characterized in that, described top cooling water chamber (3-1) is formed by the annular groove and the cooperation of the body inwall above upper waistband (2-1) that are positioned at described support shoulders (2-1) below on outer wall of cylinder jachet.
3. internal combustion (IC) engine airframe group according to claim 1, is characterized in that, described top cooling water chamber (3-1) is formed by the annular groove and the cooperation of the outer wall of cylinder jachet above upper waistband (2-1) that are positioned at described support shoulders (2-1) below on body inwall.
4. internal combustion (IC) engine airframe group according to claim 1, it is characterized in that, described bottom cooling water chamber (3-1) is upwards divided into two-way, and the branch road of leading up to water inlet duct (4) is communicated with top cooling water chamber (3-1), and the cylinder cap of separately leading up to water inlet duct (5) is communicated with Cooling of Cylinder Head water cavity.
5. internal combustion (IC) engine airframe group according to claim 4, is characterized in that, described top cooling water chamber (3-1) is communicated with the outlet pipe water cavity (8) on body (1) by branch road water outlet duct (6).
6. internal combustion (IC) engine airframe group according to claim 5, is characterized in that, described Cooling of Cylinder Head water cavity is communicated with the outlet pipe water cavity (8) on body (1) by cylinder cap water outlet duct (7).
7. internal combustion (IC) engine airframe group according to claim 5, it is characterized in that, described branch road water inlet duct (4) and branch road water outlet duct (6) are radial direction through hole, described branch road water inlet duct (4) is opened on the body (1) of described cylinder sleeve (2) one sides, and described branch road water outlet duct (6) is opened on the body (1) of described cylinder sleeve (2) opposite side.
8. according to the internal combustion (IC) engine airframe group described in claim 1 to 7 any one, it is characterized in that, the axial length of described top cooling water chamber (3-1) is greater than the axial length of described upper waistband (2-2).
9. internal combustion (IC) engine airframe group according to claim 8, is characterized in that, described cylinder sleeve (2) is machining shaping cylinder sleeve.
10. an internal-combustion engine, comprises body group, connecting rod, distribution device, oil supply system, lubrication system, cooling system and starting arrangement, it is characterized in that, described body group is the internal combustion (IC) engine airframe group described in the claims 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310653772.0A CN103696866A (en) | 2013-12-06 | 2013-12-06 | Internal combustion engine and machine body group of internal combustion engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310653772.0A CN103696866A (en) | 2013-12-06 | 2013-12-06 | Internal combustion engine and machine body group of internal combustion engine |
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| CN103696866A true CN103696866A (en) | 2014-04-02 |
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| CN201310653772.0A Pending CN103696866A (en) | 2013-12-06 | 2013-12-06 | Internal combustion engine and machine body group of internal combustion engine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569866A (en) * | 2015-11-27 | 2016-05-11 | 沪东重机有限公司 | Structure of cooling water channel for cylinder sleeve of marine diesel engine |
| CN108035815A (en) * | 2017-11-17 | 2018-05-15 | 无锡开普动力有限公司 | V-type engine cools down architecture |
| CN111894754A (en) * | 2020-07-20 | 2020-11-06 | 东风商用车有限公司 | Cooling device of counter-flow diesel engine |
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| CN101349213A (en) * | 2008-09-03 | 2009-01-21 | 无锡开普机械有限公司 | Water-cooled engine body |
| CN202851171U (en) * | 2012-08-03 | 2013-04-03 | 安徽华菱汽车有限公司 | Engine and cooling structure of cylinder sleeve cylinder body |
| CN203201637U (en) * | 2013-03-14 | 2013-09-18 | 南车玉柴四川发动机股份有限公司 | Novel cooling structure of air cylinder sleeve of middle-speed and high-power diesel engine |
| CN203614245U (en) * | 2013-12-06 | 2014-05-28 | 潍柴动力股份有限公司 | Internal combustion engine and engine body set thereof |
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2013
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08334022A (en) * | 1995-06-07 | 1996-12-17 | Teikoku Piston Ring Co Ltd | Cooling structure of cylinder |
| JP2005214074A (en) * | 2004-01-29 | 2005-08-11 | Toyota Motor Corp | Cylinder block |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569866A (en) * | 2015-11-27 | 2016-05-11 | 沪东重机有限公司 | Structure of cooling water channel for cylinder sleeve of marine diesel engine |
| CN108035815A (en) * | 2017-11-17 | 2018-05-15 | 无锡开普动力有限公司 | V-type engine cools down architecture |
| CN111894754A (en) * | 2020-07-20 | 2020-11-06 | 东风商用车有限公司 | Cooling device of counter-flow diesel engine |
| CN111894754B (en) * | 2020-07-20 | 2021-07-06 | 东风商用车有限公司 | Cooling device of counter-flow diesel engine |
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Application publication date: 20140402 |