CN112360614B - Cooling system of motorcycle engine - Google Patents
Cooling system of motorcycle engine Download PDFInfo
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- CN112360614B CN112360614B CN202011161938.3A CN202011161938A CN112360614B CN 112360614 B CN112360614 B CN 112360614B CN 202011161938 A CN202011161938 A CN 202011161938A CN 112360614 B CN112360614 B CN 112360614B
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- water inlet
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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
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
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- 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
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- 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
- F02F11/00—Arrangements of sealings in combustion engines
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention provides a cooling system of a motorcycle engine, which solves the problems that the cylinder of the existing motorcycle engine is easy to wash the cylinder and enter cooling liquid, and an air valve is easy to break. The cylinder comprises a cylinder body, a cylinder head and a sealing gasket; a cylinder sleeve is integrally formed in the cylinder body, a cooling cavity is formed between the cylinder sleeve and the cylinder body, a water inlet channel is arranged at the side part of the cylinder body, a drainage groove is formed in the outer ring surface of the cooling cavity, and a water outlet hole communicated with the drainage groove is formed in the top of the cylinder body; the cylinder head is provided with a combustion chamber which is opposite to the cylinder sleeve hole and a water inlet hole which is opposite to the water outlet hole, a water ring, a water cavity and a water outlet channel which are mutually communicated are arranged in the cylinder head, and the water inlet hole is communicated with the water ring. By increasing the distance between the water outlet hole and the cylinder sleeve hole and adopting a unique sealing mode, the cooling liquid is effectively prevented from entering the cylinder sleeve; more cooling liquid is distributed by controlling the flow rate and the flow velocity of the cooling liquid, and the scouring speed is increased to perform key cooling on the exhaust valve with higher temperature.
Description
Technical Field
The invention belongs to the technical field of motorcycles, and relates to a cooling system of a motorcycle engine.
Background
A cylinder of a motorcycle engine includes a cylinder block and a cylinder head. For example, the chinese patent discloses a water-cooled motorcycle cylinder block [ No. CN205605322U ], which comprises a cylinder body and a cylinder sleeve integrated with the cylinder body and embedded inside the cylinder body, wherein a water-cooled channel is arranged between the cylinder body and the cylinder sleeve, cooling fins are annularly arranged on the outer surface of the cylinder body, a heat dissipation channel is formed between adjacent cooling fins, the thickness of the cooling fins is gradually reduced from the connection part with the cylinder body to the outside, and a plurality of grooves are respectively arranged on the opposite side walls of the cooling fins. For another example, the chinese patent discloses a water-cooled cylinder head of a motorcycle engine [ No. CN2649791], which comprises an intake duct, an exhaust duct and a combustion chamber, wherein a cooling water channel system composed of a water inlet, a water ring, a water channel, a water cavity and a water outlet is arranged around the combustion chamber, the intake duct and the exhaust duct, the water inlet is communicated with the water ring, the water ring is connected with the water cavity through the water channel, and the water outlet is communicated with the water cavity.
The upper end of the water cooling channel in the cylinder block is completely opened, so that an open circular water channel is formed, the open circular water channel is close to a cylinder sleeve hole and is only 6-7mm, the temperature at the position is high, and the cylinder head sealing gasket on the upper surface of the cylinder sleeve is subjected to form and position errors caused by processing, so that burning high-temperature and high-pressure gas easily enters a gap between the cylinder block and the cylinder head, the cylinder head sealing gasket is ablated, cooling water enters an engine, the phenomenon of engine oil whitening occurs, and the normal work and the service life of the engine are seriously influenced.
The water inlet on the cylinder head is waist-shaped, so that the processing is inconvenient, the distance between the water inlet and the combustion chamber is short and is only 6-7mm, and the burnt high-temperature and high-pressure gas can easily enter a gap between the cylinder body and the cylinder head to cause the ablation of a sealing gasket, so that cooling water enters the combustion chamber; the water ring surrounds the air inlet channel and the air outlet channel at the same time, the cooling effect on the air outlet channel and the air inlet channel is the same, and the air outlet channel cannot be cooled in a key manner.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a cooling system of a motorcycle engine, wherein cooling liquid is not easy to enter the engine.
The purpose of the invention can be realized by the following technical scheme:
the cooling system of the motorcycle engine comprises a cylinder body, a cylinder head buckled with the cylinder body and a sealing gasket arranged between the cylinder body and the cylinder head; a cylinder sleeve is embedded in the cylinder body, a cylinder sleeve hole is formed in the cylinder sleeve, a cooling cavity arranged around the cylinder sleeve is formed between the cylinder sleeve and the cylinder body, a water inlet channel communicated with the cooling cavity is formed in the side part of the cylinder body, a drainage groove extending up and down is formed in the outer ring surface of the cooling cavity, and a water outlet hole which is arranged opposite to and communicated with the drainage groove is formed in the top of the cylinder body; the cylinder head is provided with a combustion chamber which is arranged right opposite to the cylinder sleeve hole and a water inlet hole which is arranged right opposite to the water outlet hole, an air inlet channel and an air exhaust channel are arranged in the combustion chamber, a water ring, a water cavity communicated with the water ring and a water outlet channel communicated with the water cavity are arranged in the cylinder head, and the water inlet hole is communicated with the water ring.
The cooling liquid enters the cooling cavity from the water inlet channel, cools the cylinder sleeve, enters the water ring through the water outlet hole and the water inlet hole, cools the air inlet channel and the air exhaust channel, and is finally discharged through the water outlet channel. Because set up the drainage recess on the outer anchor ring of cooling chamber, make apopore and drainage recess just to setting up simultaneously, increased the distance of drainage recess to cylinder jacket hole, effectively avoided the coolant liquid to get into the cylinder liner, can not influence the normal work and the life of engine.
In the cooling system of the motorcycle engine, the water outlet hole is a circular hole, and the water inlet hole is a circular hole. Compared with a waist-shaped hole, the round hole is more convenient to process.
In the cooling system of the motorcycle engine, the distance from the water outlet hole to the cylinder sleeve hole is 10-30 mm. The distance from the water outlet to the cylinder sleeve hole is the minimum distance from the edge of the water outlet to the edge of the cylinder sleeve hole, and the distance from the water inlet to the combustion chamber is equal to the distance from the water outlet to the cylinder sleeve hole and is also 10-30mm as the water inlet and the water outlet are arranged oppositely.
In the cooling system of the motorcycle engine, the drainage grooves are 4: the drainage groove I and the drainage groove II are positioned on one side of the cylinder body, and the drainage groove III and the drainage groove IV are positioned on the other side of the cylinder body;
the apopore be four: the water outlet I is arranged right opposite to the drainage groove I, the water outlet II is arranged right opposite to the drainage groove II, the water outlet III is arranged right opposite to the drainage groove III, and the water outlet IV is arranged right opposite to the drainage groove IV;
the four water inlet holes are: the water inlet structure comprises a first water inlet hole which is opposite to the first water outlet hole, a second water inlet hole which is opposite to the second water outlet hole, a third water inlet hole which is opposite to the third water outlet hole and a fourth water inlet hole which is opposite to the fourth water outlet hole.
In the cooling system of the motorcycle engine, the number of the water rings is two: the water ring I is arranged around the air inlet channel, the water ring II is arranged around the air exhaust channel, the water inlet hole I and the water inlet hole II are respectively communicated with the water ring I, and the water inlet hole III and the water inlet hole IV are respectively communicated with the water ring II.
The width of the drainage groove III is equal to that of the drainage groove IV, the width of the drainage groove I is equal to that of the drainage groove II, and the width of the drainage groove III is larger than that of the drainage groove I. The inner annular surface of the cooling cavity is the outer surface of the cylinder liner, so that the cylinder liner can be directly cooled by the cooling liquid in the cooling cavity. The water inlet channels are two, one extends along the tangential direction of the cooling cavity, and the other water inlet channel enters water obliquely upwards.
An air inlet valve is arranged in the air inlet channel, an air outlet valve is arranged in the air outlet channel, and the temperature of the air outlet valve is higher than that of the air inlet valve when the air outlet channel works, so that the apertures of the air inlet hole three and the air inlet hole four are set to be larger than those of the air inlet hole one and the air inlet hole two, the air outlet valve is cooled in a targeted mode, and the cooling effect of the air outlet valve is improved.
In the cooling system of the motorcycle engine, the outer ring surface of the first water ring is provided with a first drainage groove which is opposite to and communicated with the first water inlet hole and a second drainage groove which is opposite to and communicated with the second water inlet hole; and the outer ring surface of the water ring II is provided with a third drainage groove which is just opposite to and communicated with the third water inlet hole and a fourth drainage groove which is just opposite to the fourth water inlet hole.
The distance from the first water inlet hole to the combustion chamber is increased through the first set drainage groove, the distance from the second water inlet hole to the combustion chamber is increased through the second set drainage groove, the distance from the third water inlet hole to the combustion chamber is increased through the third set drainage groove, and the distance from the fourth water inlet hole to the combustion chamber is increased through the fourth set drainage groove.
In order to realize better cooling effect, water entering from the water inlet hole I enters the water cavity in the water ring I along the clockwise direction, water entering from the water inlet hole II enters the water cavity in the water ring I along the anticlockwise direction, and the paths of the water cavity and the water cavity in the water ring I are equal; water entering from the water inlet hole III enters the water cavity in the water ring II along the clockwise direction, water entering from the water inlet hole IV enters the water cavity in the water ring II along the anticlockwise direction, and the paths of the water cavity and the water cavity in the water ring II are equal.
In the cooling system of the motorcycle engine, a water channel connector is arranged at an outlet of the water outlet channel. Namely, a water channel interface is reserved at the outlet of the water outlet channel, and water flowing out of the water outlet channel can be injected into other parts needing cooling to carry out cooling operation. In general, the waterway interface is in a blocking state.
In the cooling system of the motorcycle engine, the sealing pad is provided with a first through hole which is just opposite to the first water outlet hole, a second through hole which is just opposite to the second water outlet hole, a third through hole which is just opposite to the third water outlet hole, a fourth through hole which is just opposite to the fourth water outlet hole and a fifth through hole which is just opposite to the cylinder sleeve hole, and the sealing pad is further provided with a first sealing rib which is arranged around the first through hole, a second sealing rib which is arranged around the second through hole, a third sealing rib which is arranged around the third through hole, a fourth sealing rib which is arranged around the fourth through hole and a fifth sealing rib which is arranged around the fifth through hole.
The aperture of the first water outlet hole is equal to that of the first water inlet hole, and the aperture of the first through hole is larger than that of the first water outlet hole; the aperture of the second water outlet hole is equal to that of the second water inlet hole, and the aperture of the second through hole is larger than that of the second water outlet hole; the aperture of the water outlet hole III is equal to that of the water inlet hole III, and the aperture of the through hole III is larger than that of the water outlet hole III; the aperture of the water outlet hole IV is equal to that of the water inlet hole IV, and the aperture of the through hole IV is larger than that of the water outlet hole IV.
The first sealing rib, the second sealing rib, the third sealing rib and the fourth sealing rib form a first seal, the fifth sealing rib forms a second seal, the fifth sealing rib is close to the cylinder sleeve hole and is easy to burn, and the first sealing rib, the second sealing rib, the third sealing rib and the fourth sealing rib are far away from the cylinder sleeve hole and are not easy to burn. When the sealing rib five is burnt, water can still be effectively prevented from entering the cylinder sleeve hole under the action of the sealing rib I, the sealing rib II, the sealing rib III and the sealing rib IV.
In the cooling system of the motorcycle engine, a first isolation pin is arranged in the first water outlet hole, and the upper end of the first isolation pin extends into the first water inlet hole; an isolation pin II is arranged in the water outlet II, and the upper end of the isolation pin II extends into the water inlet II; an isolation pin III is arranged in the water outlet hole III, and the upper end of the isolation pin III extends into the water inlet hole III; and a fourth isolating pin is arranged in the fourth water outlet hole, and the upper end of the fourth isolating pin extends into the fourth water inlet hole.
The lower end of the first isolating pin is matched with the first water outlet hole, and the upper end of the first isolating pin is matched with the first water inlet hole; the lower end of the second isolating pin is matched with the second water outlet hole, and the upper end of the second isolating pin is matched with the second water inlet hole; the lower end of the third isolating pin is matched with the third water outlet hole, and the upper end of the third isolating pin is matched with the third water inlet hole; the lower end of the isolation pin IV is matched with the water outlet hole IV, and the upper end of the isolation pin IV is matched with the water inlet hole IV; further ensuring that the cooling liquid does not flow into the cylinder jacket hole.
Compared with the prior art, the cooling system of the motorcycle engine has the following advantages:
because the first drainage groove, the second drainage groove, the third drainage groove and the fourth drainage groove are arranged, the distance from the first water outlet hole, the second water outlet hole, the third water outlet hole and the fourth water outlet hole to the cylinder sleeve hole is increased, and the first sealing rib, the second sealing rib, the third sealing rib and the fourth sealing rib are prevented from being burnt; when the sealing rib five is burnt, water can be effectively prevented from entering the cylinder sleeve hole under the action of the sealing rib I, the sealing rib II, the sealing rib III and the sealing rib IV, and the normal work and the service life of an engine cannot be influenced; the aperture of the water inlet hole III and the aperture of the water inlet hole IV are larger than the aperture of the water inlet hole I and the aperture of the water inlet hole II, so that more cooling liquid entering the water ring II in unit time is ensured, the exhaust valve with higher temperature is cooled in a targeted manner, and the cooling effect is good.
Drawings
Fig. 1 is a schematic structural view of a cylinder block provided by the present invention.
Fig. 2 is a plan view of a cylinder block provided by the present invention.
Fig. 3 is a transverse sectional view of a cylinder block provided by the present invention.
Fig. 4 is a bottom view of the cylinder head provided by the present invention.
FIG. 5 is a transverse cross-sectional view of a cylinder head provided by the present invention.
Fig. 6 is a longitudinal sectional view of a cylinder block provided by the present invention.
Fig. 7 is a schematic structural view of the gasket provided by the present invention.
FIG. 8 is a schematic view of the assembly of the first outlet and the first inlet of the present invention.
In the figure, 1, a cylinder block; 10. a cylinder liner; 11. a cylinder jacket hole; 12. a cooling chamber; 13. a water inlet channel; 141. a first drainage groove; 142. a second drainage groove; 143. a third drainage groove; 144. a fourth drainage groove; 151. a water outlet hole I; 152. a water outlet hole II; 153. a water outlet hole III; 154. a water outlet hole IV; 2. a cylinder head; 20. a combustion chamber; 21. an air inlet channel; 22. an exhaust passage; 23. a water chamber; 24. a water outlet channel; 251. a water inlet hole I; 252. a water inlet hole II; 253. a third water inlet hole; 254. a fourth water inlet hole; 261. a first water ring; 262. a second water ring; 271. a drainage groove I; 272. a drainage groove II; 273. a drainage groove III; 274. a drainage groove IV; 28. a waterway interface; 3. a gasket; 31. a first through hole; 32. a second through hole; 33. a third through hole; 34. a fourth through hole; 35. a fifth through hole; 36. sealing ribs I; 37. a second sealing rib; 38. a third sealing rib; 39. sealing rib four; 30. a fifth sealing rib; 41. and (5) isolating the first pin.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 8, the cooling system for a motorcycle engine includes a cylinder block 1, a cylinder head 2 fastened to the cylinder block 1, and a gasket 3 provided between the cylinder block 1 and the cylinder head 2.
As shown in fig. 1 and 3, a cylinder liner 10 is embedded in the cylinder block 1, a cylinder liner hole 11 is formed inside the cylinder liner 10, as shown in fig. 3, a cooling cavity 12 arranged around the cylinder liner 10 is formed between the cylinder liner 10 and the cylinder block 1, a water inlet channel 13 communicated with the cooling cavity 12 is arranged on the side portion of the cylinder block 1, wherein the number of the water inlet channels 13 is 2, only one water inlet channel is shown in fig. 3, the water inlet channel 13 extends along the tangential direction of the cooling cavity 12, and the other water inlet channel 13 extends obliquely upward, so that cooling liquid enters from the tangential direction to form annular rotation and gradually rise, and the cylinder block 1 and the cylinder head 2 are both cooled.
As shown in fig. 3, the outer annular surface of the cooling cavity 12 has a drainage groove extending vertically, and the top of the cylinder block 1 has a water outlet hole opposite to and communicated with the drainage groove. Specifically, as shown in fig. 3, the drainage grooves are 4: the first drainage groove 141 and the second drainage groove 142 which are located on one side of the cylinder block 1, and the third drainage groove 143 and the fourth drainage groove 144 which are located on the other side of the cylinder block 1 are arranged oppositely, the first drainage groove 141 and the third drainage groove 143 are arranged oppositely, and the second drainage groove 142 and the fourth drainage groove 144 are arranged oppositely. The width of the drainage groove III 143 is equal to that of the drainage groove IV 144, the width of the drainage groove I141 is equal to that of the drainage groove II 142, and the width of the drainage groove III 143 is larger than that of the drainage groove I141. The inner annular surface of the cooling chamber 12 is the outer surface of the liner 10, so that the coolant in the cooling chamber 12 can directly cool the liner 10 and simultaneously cool the cylinder block 1.
As shown in fig. 1 and 2, the number of the water outlet holes is four: the first water outlet 151 opposite to the first drainage groove 141, the second water outlet 152 opposite to the second drainage groove 142, the third water outlet 153 opposite to the third drainage groove 143 and the fourth water outlet 154 opposite to the fourth drainage groove 144, the aperture of the first water outlet 151 is equal to that of the second water outlet 152, the aperture of the third water outlet 153 is equal to that of the fourth water outlet 154, and the aperture of the third water outlet 153 is larger than that of the first water outlet 151.
In this embodiment, each water outlet hole is a circular hole and the distance to the cylinder sleeve hole 11 is 10-30 mm.
As shown in fig. 4, the cylinder head 2 has a combustion chamber 20 opposite to the cylinder jacket hole 11 and a water inlet hole opposite to the water outlet hole, an intake passage 21 and an exhaust passage 22 are provided in the combustion chamber 20, an intake valve is provided in the intake passage 21, and an exhaust valve is provided in the exhaust passage 22, wherein the temperature of the exhaust valve is higher than that of the intake valve during operation. A water ring, a water cavity 23 communicated with the water ring and a water outlet channel 24 communicated with the water cavity 23 are arranged in the cylinder head 2, and a water inlet hole is communicated with the water ring.
As shown in fig. 5, a water channel connector 28 is provided at an outlet of the water outlet channel 24, that is, the water channel connector 28 is reserved at the outlet of the water outlet channel 24, and water flowing out from the water outlet channel 24 can be injected into other components to be cooled for cooling. Typically, the waterway interface 28 is in a plugged state.
As shown in fig. 4, the number of the water inlet holes is four: a first water inlet 251 directly opposite to the first water outlet 151, a second water inlet 252 directly opposite to the second water outlet 152, a third water inlet 253 directly opposite to the third water outlet 153, and a fourth water inlet 254 directly opposite to the fourth water outlet 154. The aperture of the air inlet hole III and the aperture of the air inlet hole IV are set to be larger than the aperture of the air inlet hole I and the aperture of the air inlet hole II, the exhaust valve is cooled in a targeted mode, and the cooling effect of the exhaust valve is improved.
As shown in fig. 5 and 6, the water rings are two: the first water ring 261 and the second water ring 262 are arranged around the air inlet channel 21, the first water inlet 251 and the second water inlet 252 are respectively communicated with the first water ring 261, and the third water inlet 253 and the fourth water inlet 254 are respectively communicated with the second water ring 262.
Each water inlet is a circular hole, and the distance from the water inlet to the cylinder sleeve hole 11 is 10-30 mm.
As shown in fig. 4, the outer annular surface of the water ring one 261 is provided with a first drainage groove 271 opposite to and communicated with the water inlet hole one 251 and a second drainage groove 272 opposite to and communicated with the water inlet hole two 252; the outer annular surface of the second water ring 262 is provided with a third drainage groove 273 opposite to and communicated with the third water inlet 253 and a fourth drainage groove 274 opposite to the fourth water inlet 254. The distance from the first water inlet 251 to the combustion chamber 20 is increased through the first arranged drainage groove 271, the distance from the second water inlet 252 to the combustion chamber 20 is increased through the second arranged drainage groove 272, the distance from the third water inlet 253 to the combustion chamber 20 is increased through the third arranged drainage groove 273, and the distance from the fourth water inlet 254 to the combustion chamber 20 is increased through the fourth arranged drainage groove 274.
In order to realize better cooling effect, the water entering from the first water inlet 251 enters the water cavity 23 in the first water ring 261 along the clockwise direction, the water entering from the second water inlet 252 enters the water cavity 23 in the first water ring 261 along the counterclockwise direction, and the paths of the water entering from the first water inlet 251 and the water entering from the second water inlet 252 in the first water ring 261 are equal; the water entering from the third water inlet 253 enters the water cavity 23 in the second water ring 262 along the clockwise direction, the water entering from the fourth water inlet 254 enters the water cavity 23 in the second water ring 262 along the counterclockwise direction, and the paths of the water entering from the third water inlet and the water entering from the fourth water inlet are equal in the second water ring 262.
As shown in fig. 7, the gasket 3 has a first through hole 31 facing the first water outlet 151, a second through hole 32 facing the second water outlet 152, a third through hole 33 facing the third water outlet 153, a fourth through hole 34 facing the fourth water outlet 154, and a fifth through hole 35 facing the cylinder jacket hole 11, and the gasket 3 further has a first sealing rib 36 surrounding the first through hole 31, a second sealing rib 37 surrounding the second through hole 32, a third sealing rib 38 surrounding the third through hole 33, a fourth sealing rib 39 surrounding the fourth through hole 34, and a fifth sealing rib 30 surrounding the fifth through hole 35. The aperture of the first water outlet hole 151 is equal to that of the first water inlet hole 251, and the aperture of the first through hole 31 is larger than that of the first water outlet hole 151; the aperture of the second water outlet 152 is equal to that of the second water inlet 252, and the aperture of the second through hole 32 is larger than that of the second water outlet 152; the aperture of the water outlet hole III 153 is equal to that of the water inlet hole III 253, and the aperture of the through hole III 33 is larger than that of the water outlet hole III 153; the aperture of the fourth water outlet 154 is equal to that of the fourth water inlet 254, and the aperture of the fourth through hole 34 is larger than that of the fourth water outlet 154.
The first sealing rib 36, the second sealing rib 37, the third sealing rib 38 and the fourth sealing rib 39 form first sealing, the fifth sealing rib 30 forms second sealing, the fifth sealing rib 30 is close to the cylinder sleeve hole 11 and is easy to burn, and the first sealing rib 36, the second sealing rib 37, the third sealing rib 38 and the fourth sealing rib 39 are far from the cylinder sleeve hole 11 and are not easy to burn. When the five sealing ribs 30 are burnt, water can still be effectively prevented from entering the cylinder sleeve hole 11 under the action of the first sealing rib 36, the second sealing rib 37, the third sealing rib 38 and the fourth sealing rib 39.
As shown in fig. 8, a first isolation pin 41 is disposed in the first outlet hole 151, and an upper end of the first isolation pin 41 extends into the first inlet hole 251. An isolation pin II is arranged in the water outlet hole II 152, and the upper end of the isolation pin II extends into the water inlet hole II 252; a third isolating pin is arranged in the third water outlet 153, and the upper end of the third isolating pin extends into the third water inlet 253; the fourth water outlet 154 is internally provided with a fourth isolating pin, and the upper end of the fourth isolating pin extends into the fourth water inlet 254.
The lower end of the first isolation pin 41 is matched with the first water outlet hole 151, and the upper end of the first isolation pin is matched with the first water inlet hole 251; the lower end of the second isolation pin is matched with the second water outlet hole 152, and the upper end of the second isolation pin is matched with the second water inlet hole 252; the lower end of the third isolating pin is matched with the third water outlet 153, and the upper end of the third isolating pin is matched with the third water inlet 253; the lower end of the isolation pin IV is matched with the water outlet hole IV 154, and the upper end of the isolation pin IV is matched with the water inlet hole IV 254; it is further ensured that the coolant does not flow into the cylinder jacket bore 11.
During operation, coolant enters the cooling cavity 12 from the water inlet channel 13, cools the cylinder sleeve 10 and the cylinder block 1, enters the water ring through the water outlet hole and the water inlet hole, cools the inlet valve in the inlet channel 21 and the exhaust valve in the exhaust channel 22, and is finally discharged through the water outlet channel 24.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. A cooling system of a motorcycle engine comprises a cylinder body (1), a cylinder head (2) buckled with the cylinder body (1) and a sealing gasket (3) arranged between the cylinder body (1) and the cylinder head (2); the cylinder body (1) is internally embedded with a cylinder sleeve (10), a cylinder sleeve hole (11) is formed in the cylinder sleeve (10), a cooling cavity (12) which is arranged around the cylinder sleeve (10) is formed between the cylinder sleeve (10) and the cylinder body (1), a water inlet channel (13) which is communicated with the cooling cavity (12) is arranged on the side portion of the cylinder body (1), and the cylinder body is characterized in that the number of the water inlet channels (13) is two, one water inlet channel (13) extends along the tangential direction of the cooling cavity (12), the other water inlet channel (13) extends obliquely upwards, a drainage groove which extends up and down is formed in the outer annular surface of the cooling cavity (12), and a water outlet which is arranged opposite to and communicated with the drainage groove is formed in the top of the cylinder body (1); the cylinder head (2) is provided with a combustion chamber (20) which is arranged opposite to the cylinder sleeve hole (11) and a water inlet hole which is arranged opposite to the water outlet hole, an air inlet channel (21) and an air exhaust channel (22) are arranged in the combustion chamber (20), a water ring, a water cavity (23) which is communicated with the water ring and a water outlet channel (24) which is communicated with the water cavity (23) are arranged in the cylinder head (2), and the water inlet hole is communicated with the water ring.
2. A cooling system for a motorcycle engine as set forth in claim 1, wherein said water outlet hole is a circular hole, and said water inlet hole is a circular hole.
3. A cooling system for a motorcycle engine as set forth in claim 2 wherein the distance from the water outlet hole to the cylinder bore (11) is 10-30 mm.
4. A cooling system for a motorcycle engine as set forth in claim 3, wherein said drainage grooves are 4: the drainage device comprises a first drainage groove (141) and a second drainage groove (142) which are positioned on one side of the cylinder block (1), and a third drainage groove (143) and a fourth drainage groove (144) which are positioned on the other side of the cylinder block (1), wherein the first drainage groove (141) and the third drainage groove (143) are arranged oppositely, and the second drainage groove (142) and the fourth drainage groove (144) are arranged oppositely;
the apopore be four: the drainage device comprises a first water outlet (151) which is arranged opposite to the first drainage groove (141), a second water outlet (152) which is arranged opposite to the second drainage groove (142), a third water outlet (153) which is arranged opposite to the third drainage groove (143), and a fourth water outlet (154) which is arranged opposite to the fourth drainage groove (144), wherein the aperture of the first water outlet (151) is equal to that of the second water outlet (152), the aperture of the third water outlet (153) is equal to that of the fourth water outlet (154), and the aperture of the third water outlet (153) is larger than that of the first water outlet (151);
the four water inlet holes are: the first water inlet hole (251) is arranged opposite to the first water outlet hole (151), the second water inlet hole (252) is arranged opposite to the second water outlet hole (152), the third water inlet hole (253) is arranged opposite to the third water outlet hole (153), and the fourth water inlet hole (254) is arranged opposite to the fourth water outlet hole (154).
5. A cooling system for a motorcycle engine as set forth in claim 4, wherein the number of the water rings is two: the water inlet structure comprises a first water ring (261) arranged around the air inlet channel (21) and a second water ring (262) arranged around the air outlet channel (22), wherein a first water inlet hole (251) and a second water inlet hole (252) are respectively communicated with the first water ring (261), and a third water inlet hole (253) and a fourth water inlet hole (254) are respectively communicated with the second water ring (262).
6. A cooling system for a motorcycle engine as set forth in claim 5 wherein the outer annular surface of the first water ring (261) has a first flow guide groove (271) facing and communicating with the first water inlet hole (251) and a second flow guide groove (272) facing and communicating with the second water inlet hole (252); and the outer ring surface of the water ring II (262) is provided with a drainage groove III (273) which is just opposite to and communicated with the water inlet hole III (253) and a drainage groove IV (274) which is just opposite to the water inlet hole IV (254).
7. A cooling system for a motorcycle engine as claimed in claim 1, wherein a water passage port (28) is provided at an outlet of the water outlet passage (24).
8. The cooling system of the motorcycle engine as claimed in claim 4, wherein the gasket (3) has a first through hole (31) disposed opposite to the first water outlet hole (151), a second through hole (32) disposed opposite to the second water outlet hole (152), a third through hole (33) disposed opposite to the third water outlet hole (153), a fourth through hole (34) disposed opposite to the fourth water outlet hole (154), and a fifth through hole (35) disposed opposite to the cylinder jacket hole (11), and the gasket (3) is further provided with a first sealing rib (36) disposed around the first through hole (31), a second sealing rib (37) disposed around the second through hole (32), a third sealing rib (38) disposed around the third through hole (33), a fourth sealing rib (39) disposed around the fourth through hole (34), and a fifth sealing rib (30) disposed around the fifth through hole (35).
9. A cooling system for a motorcycle engine as claimed in claim 4, wherein a first isolation pin (41) is provided in the first outlet hole (151), and the upper end of the first isolation pin extends into the first inlet hole (251); a second isolation pin is arranged in the second water outlet hole (152), and the upper end of the second isolation pin extends into the second water inlet hole (252); a third isolating pin is arranged in the third water outlet hole (153), and the upper end of the third isolating pin extends into the third water inlet hole (253); and a fourth isolating pin is arranged in the fourth water outlet hole (154), and the upper end of the fourth isolating pin extends into the fourth water inlet hole (254).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011161938.3A CN112360614B (en) | 2020-10-27 | 2020-10-27 | Cooling system of motorcycle engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011161938.3A CN112360614B (en) | 2020-10-27 | 2020-10-27 | Cooling system of motorcycle engine |
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| CN112360614A CN112360614A (en) | 2021-02-12 |
| CN112360614B true CN112360614B (en) | 2022-01-25 |
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| CN202011161938.3A Active CN112360614B (en) | 2020-10-27 | 2020-10-27 | Cooling system of motorcycle engine |
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| CN114406244A (en) * | 2022-01-11 | 2022-04-29 | 夏世林 | Manufacturing process of split type motorcycle cylinder body |
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| CN2649791Y (en) * | 2003-09-23 | 2004-10-20 | 文国富 | Water cooled cylinder head for motorcycle engine |
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| CN206368751U (en) * | 2016-08-29 | 2017-08-01 | 重庆动沃机车产业有限公司 | Strong cold cylinder head |
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| CN107740731A (en) * | 2017-11-17 | 2018-02-27 | 安庆中船柴油机有限公司 | A kind of engine cylinder head |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004150377A (en) * | 2002-10-31 | 2004-05-27 | Toyota Motor Corp | Fluid passage structure in internal combustion engine |
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| CN2649791Y (en) * | 2003-09-23 | 2004-10-20 | 文国富 | Water cooled cylinder head for motorcycle engine |
| CN102297039A (en) * | 2011-07-19 | 2011-12-28 | 崔玉春 | Internal combustion engine sealing pad |
| CN103867329A (en) * | 2014-03-12 | 2014-06-18 | 无锡华源凯马发动机有限公司 | Split type cylinder sleeve for aluminium alloy single-cylinder water-cooled diesel engines |
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| CN112360614A (en) | 2021-02-12 |
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