CN201258794Y - Water-cooled engine - Google Patents
Water-cooled engine Download PDFInfo
- Publication number
- CN201258794Y CN201258794Y CNU2008201859845U CN200820185984U CN201258794Y CN 201258794 Y CN201258794 Y CN 201258794Y CN U2008201859845 U CNU2008201859845 U CN U2008201859845U CN 200820185984 U CN200820185984 U CN 200820185984U CN 201258794 Y CN201258794 Y CN 201258794Y
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- Prior art keywords
- cooling
- cooling chamber
- water
- positioning belt
- cylinder body
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- Legal status (The legal status 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 status listed.)
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Abstract
The utility model relates to a water-cooled engine body, in particular to a cylinder body of a wet type cylinder sleeve engine, which comprises a cylinder body and a cylinder sleeve. The utility model is characterized in that the cylinder sleeve is provided with an upper positioning belt and a lower positioning belt; the inner surface of the cylinder body is provided with a convex ring; a cooling water channel formed between the lower positioning belt and the convex ring is a first cooling chamber; a cooling water channel formed between the convex ring and the upper positioning belt is a second cooling chamber; a 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-sectional area of the first cooling chamber; and the cross-sectional area of third cooling chamber is smaller than the cross-sectional area of the second cooling chamber. The utility model can improve the flow rate of the cooling liquid, increase the cooling liquid amount, and enhance the cooling rate of the high-temperature zone, thereby maintaining the consistent temperature of the whole cylinder sleeve, ensuring the normal fitting gap between all the parts of the cylinder body and guaranteeing the normal operation of the engine.
Description
Technical field
The utility model relates to a kind of water-cooled engine body, relates in particular to a kind of cylinder block of wet cylinder liner motor.
Background technique
Adopt the engine body of wet cylinder liner, be provided with cooling water channel between cylinder sleeve and the cylinder body, form cooling jacket thereby pass to cooling liquid in the cooling water channel.Wet cylinder liner directly contacts with cooling liquid, and radiating condition is better.During engine operation, the temperature at each position of cylinder sleeve is very inconsistent, and the firepower bank of piston concentrates on the top of cylinder sleeve.The cooling jacket of available engine body, the area of its cross section does not change, and the coolant rate at each position is all consistent with flow velocity in the cooling jacket, and is identical to the rate of cooling at each position of cylinder sleeve, causes the bulk temperature of cylinder sleeve inhomogeneous.Because the temperature at each position of cylinder body is inconsistent, causes that the degrees of expansion at each position also has nothing in common with each other, and the normal matching gap between each part is changed, thereby influence the proper functioning of motor.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, thereby a kind of water-cooled engine body is provided, and by strengthening the flow and the flow velocity of cylinder sleeve high temperature position cooling liquid, each position of cylinder body is all better cooled off in this body.
According to the technological scheme that the utility model provides, water-cooled engine body comprises cylinder body, cylinder sleeve, is provided with cooling water channel between cylinder sleeve and the cylinder body, forms cooling jacket thereby pass to cooling liquid in the cooling water channel; Feature is: described cylinder sleeve is provided with positioning belt and reaches positioning belt down; Described inner surface of cylinder block is provided with bulge loop; The cooling water channel that forms between described positioning belt down and the described bulge loop is first cooling chamber; Described bulge loop and the described cooling water channel that upward forms between the positioning belt are second cooling chamber; The described cooling water channel of going up the above formation of positioning belt is the 3rd cooling chamber; The cross sectional area of described second cooling chamber is less than the cross sectional area of first cooling chamber; The cross sectional area of the 3rd cooling chamber is less than the cross sectional area of second cooling chamber.
Described bulge loop between positioning belt on the described cylinder sleeve and following positioning belt, and and described cylinder sleeve between be provided with the radial clearance.
Described cylinder body is provided with water intake and water outlet; Described water intake is connected with first cooling chamber; Described water outlet is connected with the water outlet of second cooling chamber and the 3rd cooling chamber.
The sidewall of described cylinder body is provided with the connecting port that is connected with described first cooling chamber.
The top of described cylinder body is provided with the water jacket hole that is connected with described second cooling chamber.
Described inner surface of cylinder block is provided with axial notch, forms the water intake of the 3rd cooling chamber, and water intake is corresponding with described last positioning belt.
The utility model utilizes Venturi principle, when cooling liquid process cylinder body water outlet,, water outlet falls owing to having an aditus laryngis can produce pressure, thus the quickening of the flow velocity of cooling liquid, flow increases, and rate of heat removal also obtains increasing.
Compared with the prior art the utility model has the following advantages:
1, after cooling jacket of the present utility model is divided into three cooling chambers, and the area of the cross section of three cooling chambers is inequality, the cooling chamber that cross sectional area is little is arranged at the high-temperature zone of cylinder sleeve, thereby accelerate the flow velocity of cooling liquid, increase the flow of cooling liquid, increase the rate of heat removal of high-temperature zone, make the temperature unanimity of whole cylinder sleeve, guarantee the normal matching gap between each part of cylinder body, ensure the proper functioning of motor; Cooling effect to cylinder sleeve is better, the more uniform temperature of cylinder sleeve.
2, the utility model is set up bulge loop on cylinder body, because the flow velocity of cooling liquid is inhomogeneous in first cooling chamber, and cooling liquid flows to second cooling chamber behind bulge loop just even, and utilize last positioning belt and following positioning belt on bulge loop and the cylinder sleeve that cooling jacket is divided into three cooling chambers, simple in structure, convenient processing and manufacture.
3, the sidewall of cylinder body is provided with the connecting port that is connected with first cooling chamber, the cooling jacket between each cylinder body of multicylinder engine can be connected.
4, the top of cylinder body is provided with the water jacket hole that is connected with second cooling chamber, and the cooling liquid of guiding slave direction of flow cylinder cap makes the circulation of cylinder cap water jacket and body water jacket better.
Description of drawings
Fig. 1 is a plan view of the present utility model.
Fig. 2 is the A-A sectional view among Fig. 1.
Fig. 3 is the B-B sectional view among Fig. 1.
Fig. 4 is the C-C sectional view among Fig. 1.
Fig. 5 is the D-D sectional view among Fig. 1.
Fig. 6 is the E-E sectional view among Fig. 2.
Fig. 7 is the F-F sectional view among Fig. 2.
Fig. 8 is the G-G sectional view among Fig. 2.
Fig. 9 is the H-H sectional view among Fig. 2.
Embodiment
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
Fig. 1～shown in Figure 9 comprises cylinder body 1, cylinder sleeve 2, the 3rd cooling chamber 3, the second cooling chambers 4, radial clearance 5, first cooling chamber 6, water intake 7, bulge loop 8, the water outlet 9 of the 3rd cooling chamber, water outlet 10, last positioning belt 11, connecting port 12, the water intake 14 of water jacket hole 13, the three cooling chambers, following positioning belt 15.Arrow is represented the flow direction of cooling liquid among the figure.
As shown in Figure 1, be the plan view of last cylinder in the multi-cylinder water-cooled engine body.The utility model comprises cylinder body 1, cylinder sleeve 2; Be provided with cooling water channel between described cylinder sleeve 2 and the cylinder body 1, form cooling jacket thereby pass to cooling liquid in the cooling water channel.Described cooling jacket can be made as two or more cooling chambers, and the cross sectional area of described two or more cooling chambers axially successively decreases along cylinder sleeve 2.
As Fig. 2～shown in Figure 4, in the present embodiment, preferred cooling chamber is made as three, cylinder sleeve 2 is provided with positioning belt 11 and reaches positioning belt 15 down, cylinder body 1 internal surface is provided with bulge loop 8, bulge loop 8 between positioning belt 11 on the cylinder sleeve 2 and following positioning belt 15, and and cylinder sleeve 2 between be provided with radial clearance 5 (referring to Fig. 8).Cooling water channel between following positioning belt 15 and the bulge loop 8 forms first cooling chamber 6, and the cooling water channel between bulge loop 8 and the last positioning belt 11 forms second cooling chamber 4, and the cooling water channel of last positioning belt more than 11 forms the 3rd cooling chamber 3.The cross sectional area of described second cooling chamber 4 is less than the cross sectional area of first cooling chamber 6; The cross sectional area of the 3rd cooling chamber 3 is less than the cross sectional area of second cooling chamber 4.The area maximum of the cross section of described first cooling chamber 6, the area of the cross section of second cooling chamber 4 takes second place, the area minimum of the cross section of the 3rd cooling chamber 3.
As shown in Figure 6, cylinder body 1 internal surface corresponding with last positioning belt 11 is provided with two axial notches, forms the water intake 14 of the 3rd cooling chamber.
As Fig. 2, shown in Figure 9, cylinder body 1 is provided with water intake 7 and water outlet 10 (referring to Fig. 7), and water intake 7 is connected with first cooling chamber 6, and water outlet 10 is connected with the water outlet 9 of second cooling chamber 4 and the 3rd cooling chamber.
As shown in Figure 3, Figure 4, the sidewall of cylinder body 1 is provided with the connecting port 12 that is connected with first cooling chamber 6.The effect of connecting port 12 is that the cooling jacket between each cylinder body of multicylinder engine is connected.
As Fig. 1, shown in Figure 5, the top of cylinder body 1 is provided with the water jacket hole 13 that is connected with second cooling chamber 4.The effect in water jacket hole 13 is the cooling liquids that increase slave direction of flow cylinder cap, makes the circulation of cylinder cap water jacket and body water jacket better.
Working procedure of the present utility model is as follows:
Cooling liquid enters the water intake 7 of first cooling chamber 6 of engine cylinder-body 1 from cooler after, around 2 one weeks of cylinder sleeve, a part of then cooling liquid flows to the cooling jacket of next cylinder by connecting port 12, another part cooling liquid flows to second cooling chamber 4 by radial clearance 5, because the cross sectional area of second cooling chamber 4 is less than the cross sectional area of first cooling chamber 6, when flow was identical, the flow velocity of second cooling chamber 4 was greater than the flow velocity of first cooling chamber 6, thereby rate of heat removal can improve; A cooling liquid part that flows out from second cooling chamber 4 flows to water outlet 10, another part flows into the 3rd cooling chamber 3 by the water intake 14 of the 3rd cooling chamber, the cross sectional area of the 3rd cooling chamber 3 is less than the cross sectional area of second cooling chamber 4, the same, because the 3rd cooling chamber 3 areas are very little, resistance is very big, so accelerate flow velocity at outlet port utilization Venturi principle.Because the cross sectional area of three cooling chambers reduces successively, so the rate of cooling on cylinder sleeve 2 tops is greater than the rate of cooling of bottom, and the firepower bank of piston mainly concentrates on the top of cylinder sleeve 2, the rate of cooling on cylinder sleeve 2 tops is faster like this, and the uneven phenomenon of the bulk temperature of cylinder sleeve 2 improves.
The utility model is being added a water jacket hole 13 that communicates with second cooling chamber 4 from the nearest cylinder of cooler, because this cylinder flow maximum, so the cooling liquid of slave direction of flow cylinder cap is more, the circulation of cylinder cap water jacket and body water jacket is also better like this.
In general, the utility model can make motor have better cooling effect.
Claims (6)
1, a kind of water-cooled engine body comprises cylinder body (1), cylinder sleeve (2), is provided with cooling water channel between cylinder sleeve (2) and the cylinder body (1), logical cooling liquid in the cooling water channel, and form cooling jacket; It is characterized in that: described cylinder sleeve (2) is provided with positioning belt (11) and reaches positioning belt (15) down; Described cylinder body (1) internal surface is provided with bulge loop (8); Forming cooling water channel between described positioning belt (11) down and the described bulge loop (8) is first cooling chamber (6); Forming cooling water channel between described bulge loop (8) and the described last positioning belt (15) is second cooling chamber (4); The described cooling water channel of going up the above formation of positioning belt (15) is the 3rd cooling chamber (3); The cross sectional area of described second cooling chamber (4) is less than the cross sectional area of first cooling chamber (6); The cross sectional area of the 3rd cooling chamber (3) is less than the cross sectional area of second cooling chamber (4).
2, water-cooled engine body according to claim 1 is characterized in that described bulge loop (8) is positioned between the last positioning belt (11) and following positioning belt (15) of described cylinder sleeve (2), and and described cylinder sleeve (2) between be provided with radial clearance (5).
3, water-cooled engine body according to claim 1 is characterized in that described cylinder body (1) is provided with water intake (7) and water outlet (10); Described water intake (7) is connected with first cooling chamber (6); Described water outlet (10) is connected with the water outlet (9) of second cooling chamber (4) and the 3rd cooling chamber (3).
4, water-cooled engine body according to claim 1 is characterized in that the sidewall of described cylinder body (1) is provided with the connecting port (12) that is connected with first cooling chamber (6).
5, water-cooled engine body according to claim 1 is characterized in that the top of described cylinder body (1) is provided with the water jacket hole (13) that is connected with second cooling chamber (4).
6, water-cooled engine body according to claim 1 is characterized in that described cylinder body (1) internal surface is provided with axial notch, forms the water intake (14) of the 3rd cooling chamber, and water intake (14) is corresponding with described last positioning belt (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201859845U CN201258794Y (en) | 2008-09-03 | 2008-09-03 | Water-cooled engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201859845U CN201258794Y (en) | 2008-09-03 | 2008-09-03 | Water-cooled engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201258794Y true CN201258794Y (en) | 2009-06-17 |
Family
ID=40773026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201859845U Expired - Fee Related CN201258794Y (en) | 2008-09-03 | 2008-09-03 | Water-cooled engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201258794Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010025610A1 (en) * | 2008-09-03 | 2010-03-11 | 无锡开普机械有限公司 | A water-cooled engine block |
| CN101963109A (en) * | 2010-10-31 | 2011-02-02 | 无锡开普动力有限公司 | Machine body water channel structure of line water cooled engine |
-
2008
- 2008-09-03 CN CNU2008201859845U patent/CN201258794Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010025610A1 (en) * | 2008-09-03 | 2010-03-11 | 无锡开普机械有限公司 | A water-cooled engine block |
| CN101963109A (en) * | 2010-10-31 | 2011-02-02 | 无锡开普动力有限公司 | Machine body water channel structure of line water cooled engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20170903 |