CN219139204U

CN219139204U - Water cooling structure of engine

Info

Publication number: CN219139204U
Application number: CN202320068421.2U
Authority: CN
Inventors: 郑海刚; 张立成; 颜阳益; 潘江伟; 莫康鑫
Original assignee: Zhejiang Qianjiang Motorcycle Co Ltd
Current assignee: Zhejiang Qianjiang Motorcycle Co Ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-06-06
Anticipated expiration: 2033-01-10

Abstract

The utility model provides a water cooling structure of an engine, and belongs to the technical field of engines. The engine comprises two cylinders and a water cooling structure, wherein the water cooling structure comprises water jackets positioned in the two cylinders, and the engine is characterized in that distribution chambers are arranged on the side parts of the two cylinders and are in strip shapes and are arranged in the front-back direction, the distribution chambers are communicated with water pump water outlet pipes, the front ends of the distribution chambers are communicated with one water jacket through a first guide channel, the rear ends of the distribution chambers are communicated with the other water jacket through a second guide channel, cooling water in the water tanks is introduced into a distribution cavity through the water pump water outlet pipes, the distribution cavity distributes the cooling water for the two cylinders from two ends through the first guide channel and the second guide channel, the cooling water entering the two cylinders flows in the water jackets for cooling the engine, the distribution cavity is arranged to enable the cooling water quantity entering the two cylinders to be basically consistent, and simultaneously ensure that the cooling water entering the two cylinders is basically consistent, so that the cooling effect of the two cylinders is equivalent, and the cooling effect of the engine is improved.

Description

Water cooling structure of engine

Technical Field

The utility model belongs to the technical field of engines, and particularly relates to a water cooling structure of an engine.

Background

The cooling capacity of the motorcycle engine determines the performance of the motorcycle, the cooling can ensure that the engine is kept in a proper temperature range under all working conditions, and three cooling modes of water cooling, air cooling and oil cooling are generally adopted, and the water cooling is used as a cooling method with wider application, and the principle is that the water flowing in a cooling water jacket of a cylinder body is used for carrying away heat generated when the cylinder works by water cooling circulation so as to achieve the cooling effect.

In the prior art, the double-cylinder engine generally utilizes the same water inlet flow channel to introduce cooling water into the cooling water jacket, the water cooling structure cannot ensure that the water quantity entering the two cylinders is the same, after the water passes through the first cylinder, the water temperature of the cooling water rises during heat exchange, and the water temperature is inconsistent during the process of flowing through the second cylinder, so that the heat dissipation of the two cylinders of the engine is uneven, certain difference exists between the combustion conditions in the two cylinders, and the generated cooling effect cannot fully exert the performance of the engine.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides a water cooling structure of an engine, which aims at solving the technical problems that: and how to uniformly distribute cooling water, so as to improve the cooling effect of the engine.

The aim of the utility model can be achieved by the following technical scheme: the water cooling structure of the engine comprises two cylinder bodies, and the water cooling structure comprises water jackets positioned in the two cylinder bodies, and is characterized in that distribution chambers are arranged on the side parts of the two cylinder bodies and are strip-shaped and are arranged in the front-back direction, water outlet pipes of a water pump are communicated with the distribution chambers, the front ends of the distribution chambers are communicated with one water jacket through a first guide channel, and the rear ends of the distribution chambers are communicated with the other water jacket through a second guide channel.

The cooling water in the water tank is introduced into the distribution cavity through the water outlet pipe of the water pump, the distribution cavity distributes the cooling water for the two cylinders through the first guide channel and the second guide channel respectively from two ends, the cooling water entering the two cylinders flows in the water jacket to cool the engine, the water quantity of the cooling water entering the two cylinders is basically consistent through the arrangement of the distribution cavity, and meanwhile, the time of the cooling water entering the two cylinders is basically consistent, so that the cooling effect of the two cylinders is quite guaranteed, and the cooling effect of the engine is improved.

In the above water cooling structure of an engine, two cylinders are provided with combustion chambers, a crankcase is arranged below the two cylinders, the bottom of the distribution chamber is positioned at the upper part of the crankcase, and the top of the distribution chamber is positioned at the lower part of the combustion chamber. The distribution chamber ranges from the crankcase to the combustion chamber, when the distribution chamber is filled with cooling water, the distribution chamber cools the combustion chamber and the crankshaft when the combustion chamber and the crankshaft work, so that the distribution chamber can work in a better temperature range, and the working efficiency of the engine is improved.

In the water cooling structure of the engine, the water cooling structure comprises a water inlet cover plate, the water inlet cover plate and the two cylinder bodies form the distribution chamber in a surrounding mode, one end of a water outlet pipe of the water pump is connected with the water inlet cover plate, and the other end of the water outlet pipe of the water pump is connected with the water pump. Impurities exist in the cooling water, if the cooling water is introduced for a long time, the impurities are deposited on the inner wall of the distribution chamber without cleaning, so that the water inlet cover plate can be conveniently detached for cleaning the inner wall of the distribution chamber, and the service life of the engine is prolonged.

In the above water cooling structure of an engine, the water inlet cover plate is an upwardly curved arc plate, the distribution chamber has a bottom surface corresponding to the water inlet cover plate, and the water inlet of the first guide channel and the water inlet of the second guide channel are located near the upper edge of the bottom surface. The outer wall of the cylinder body part is directly used as the bottom surface of the distribution chamber, heat transfer can be better conducted, the working cylinder body is cooled, the water inlet of the first guide channel and the water inlet of the second guide channel are formed in the upper end of the bottom surface, when cooling water is just introduced into the distribution chamber, the cooling water cannot flow into the cylinder body immediately, but only enters the cylinder body after being accumulated by certain cooling water, the water quantity difference entering the two cylinder bodies is reduced, and the cooling water is distributed more evenly.

In the above water cooling structure of an engine, the outer surface of the water inlet cover plate is provided with heat dissipation ribs. Because the cooling water flows into the cylinder body for cooling, the cylinder body is subjected to heat exchange through the bottom surface of the distribution chamber during working, the cooling capacity of the cooling water can be weakened at the moment, and the cooling ribs on the outer surface of the water inlet cover plate can carry away part of heat through wind, so that the cooling water capacity attenuation speed is reduced.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the quantity of cooling water entering the two cylinders is basically consistent through the arrangement of the distribution cavity, the water inlet of the first guide channel and the water inlet of the second guide channel are arranged at the edge of the upper end close to the bottom surface of the distribution chamber, so that when the cooling water is just introduced into the distribution chamber, the cooling water does not flow into the cylinders immediately, but enters the cylinders after a certain accumulation of cooling water, the quantity difference of the water entering the two cylinders is reduced, and the cooling water is distributed more evenly; meanwhile, the time of cooling water entering the two cylinders is basically consistent, so that the cooling effect of the two cylinders is equivalent, and the cooling effect of the engine is improved.

Drawings

FIG. 1 is an overall block diagram of the present utility model;

FIG. 2 is a schematic view of a portion of the structure of the present utility model;

fig. 3 is a schematic diagram of a portion of the structure of the present utility model.

Wherein, 1, a cylinder body; 11. a water jacket; 1a, a first guide channel; 1b, a flow guiding channel II; 12. a combustion chamber; 2. a dispensing chamber; 21. a water inlet cover plate; 22. a bottom surface; 211. a heat dissipation rib; 3. a water outlet pipe of the water pump; 4. a crankcase; 5. and (3) a water pump.

Detailed Description

The following is a specific embodiment of the present utility model and a technical solution of the present utility model is further described with reference to the accompanying drawings, but the present utility model is not limited to the following embodiment.

Referring to fig. 1-3, it can be seen that a water cooling structure of an engine includes two cylinders 1, combustion chambers 12 are disposed in the two cylinders 1, a crankcase 4 is disposed below the two cylinders 1, the water cooling structure includes a water jacket 11 disposed in the two cylinders 1, a distribution chamber 2 is disposed at a side portion of the engine, the distribution chamber 2 is strip-shaped and disposed in a front-back direction, the distribution chamber 2 is communicated with a water pump water outlet pipe 3, a front end of the distribution chamber 2 is communicated with one water jacket 11 through a first guide channel 1a, a rear end of the distribution chamber 2 is communicated with another water jacket 11 through a second guide channel 1b, cooling water in the water tank is introduced into a distribution cavity 2 through the water pump water outlet pipe 3, the distribution cavity 2 distributes cooling water for the two cylinders 1 through the first guide channel 1a and the second guide channel 1b from two ends, and the cooling water entering the two cylinders 1 flows in the water jacket 11 to cool the engine.

The water cooling structure comprises a water inlet cover plate 21, an arc-shaped plate which is bent upwards by the water inlet cover plate 21, a distribution chamber 2 is formed by surrounding the water inlet cover plate 21 and the two cylinder bodies 1, one end of a water pump water outlet pipe 3 is connected with the water inlet cover plate 21, and the other end of the water pump water outlet pipe 3 is connected with a water pump 5. The distribution chamber 2 has a bottom surface 22 corresponding to the water inlet cover plate 21, and the water inlet of the first guide channel 1a and the water inlet of the second guide channel 1b are close to the upper end edge of the bottom surface 22. The outer wall of the cylinder body 1 is directly used as the bottom surface 22 of the distribution chamber 2, heat transfer can be better carried out, the working cylinder body is cooled, the water inlet of the first guide channel 1a and the water inlet of the second guide channel 1b are close to the upper end edge of the bottom surface 22, when cooling water is just introduced into the distribution chamber 2, the cooling water does not flow into the cylinder body 1 immediately, but only enters the cylinder body 1 after being accumulated by certain cooling water, the water difference entering the two cylinder bodies is reduced, and the cooling water is distributed more evenly.

The distribution chamber 2 has the functions of distributing water for the two cylinders 1, the distribution chamber 2 can also cool the combustion chamber 12 and the crankcase 4 which are working, the bottom of the distribution chamber 2 is positioned at the upper part of the crankcase 4, the top of the distribution chamber 2 is positioned at the lower part of the combustion chamber 12, the distribution chamber 2 ranges from the crankcase 4 to the combustion chamber 12, when the distribution chamber 2 is filled with cooling water, the distribution chamber 2 cools the combustion chamber 12 and the crankshaft when the combustion chamber 12 and the crankshaft work, the combustion chamber 12 and the crankshaft work in a better temperature range is ensured, the working efficiency of the engine is improved, the combustion chamber 12 of the other cylinder 1 is not exposed in the drawing, but the combustion chamber 12 structures of the two cylinders 1 are symmetrically arranged. The outer surface of the water inlet cover plate 21 is provided with heat dissipation ribs 211. Since the cooling water flows into the cylinder body 1 for cooling, and the bottom surface 22 of the distribution chamber 2 exchanges heat with the cylinder body 1 in operation, the cooling capacity of the cooling water is weakened at this time, and the cooling ribs 211 on the outer surface of the water inlet cover plate 21 can take away part of heat through wind, so that the cooling water cooling capacity attenuation speed is reduced.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a water cooling structure of engine, engine includes two cylinder bodies (1), water cooling structure is including being located two water jacket (11) in cylinder body (1), its characterized in that, two cylinder body (1) lateral part has distribution room (2), distribution room (2) are the strip and set up forward and backward direction, distribution room (2) intercommunication has water pump outlet pipe (3), distribution room (2) front end is through guide channel one (1 a) and one water jacket (11) intercommunication, distribution room (2) rear end is through guide channel two (1 b) and another water jacket (11) intercommunication.

2. The water cooling structure of an engine according to claim 1, wherein combustion chambers (12) are arranged in the two cylinders (1), a crankcase (4) is arranged below the two cylinders (1), the bottom of the distribution chamber (2) is arranged at the upper part of the crankcase (4), and the top of the distribution chamber (2) is arranged at the lower part of the combustion chambers (12).

3. The water cooling structure of an engine according to claim 2, characterized in that the water cooling structure comprises a water inlet cover plate (21), the water inlet cover plate (21) and the two cylinder bodies (1) are surrounded to form the distribution chamber (2), one end of the water pump water outlet pipe (3) is connected with the water inlet cover plate (21), and the other end of the water pump water outlet pipe (3) is connected with a water pump (5).

4. A water cooling structure of an engine according to claim 3, wherein the water inlet cover plate (21) is an upwardly curved plate, the distribution chamber (2) has a bottom surface (22) corresponding to the water inlet cover plate (21), and the water inlet of the first guide channel (1 a) and the water inlet of the second guide channel (1 b) are close to the upper end edge of the bottom surface (22).

5. A water cooling structure of an engine according to claim 3 or 4, characterized in that the outer surface of the water inlet cover plate (21) is provided with heat radiation ribs (211).