CN104500204A - Automobile engine cooling device - Google Patents

Abstract

The invention discloses an automobile engine cooling device, which comprises a cylinder block, a cylinder head, a large circulation loop, a small circulation loop and a warm air circulation loop. The cooling water outlet end of the cylinder head is provided with a water outlet chamber. The water outlet pipe of the large circulation loop is connected with the water outlet pipe of the small circulation loop, and the warm air circulation loop and the small circulation loop share the water pipe; The structure of the water pipeline not only meets the needs of the main circulation of heat dissipation, but also can make full use of the waste heat of the cooling water to realize the warm air circulation. The pipeline is merged to reduce the number of auto parts, simplify the engine layout, and make the engine layout compact, reducing manufacturing costs.

Description

Automotive Engine Cooling

technical field

The invention relates to a cooling device, in particular to an automobile engine cooling device.

Background technique

The role of the engine cooling device is to dissipate the heat absorbed by the heated parts in time to ensure that the engine works at the most suitable temperature. The car engine cooling device is divided into two heat dissipation cycles: one is the main cycle for cooling the engine, and the other is the warm air cycle in the car, and the main cycle for cooling the engine can be divided into two parts: a large cycle and a small cycle. The existing large circulation loop, small circulation loop and warm air circulation loop are all set separately, and the number of auto parts is too many, which makes the arrangement of the engine complicated and the manufacturing cost high.

Therefore, in order to solve the above problems, it is necessary to improve the cooling device of the automobile engine so that it can reduce the number of automobile parts on the premise of satisfying the cooling cycle, simplify the engine layout, and make the engine layout compact to reduce the manufacturing cost.

Contents of the invention

In view of this, the object of the present invention is to provide an automobile engine cooling device, which can reduce the number of automobile parts on the premise of satisfying the heat dissipation cycle, simplify the engine layout, make the engine layout compact, and reduce the manufacturing cost.

The automobile engine cooling device of the present invention includes a cylinder body, a cylinder head, a large circulation loop, a small circulation loop and a warm air circulation loop. The water outlet pipe is connected with the water outlet pipe of the small circulation loop, and the warm air circulation loop and the small circulation loop share the water pipe.

Further, a heater is also included, and the outlet pipe of the small circulation circuit is connected to the return pipe after passing through the heater.

Further, it also includes a thermostat for opening and closing the large circulation loop, and the water outlet chamber is provided with a thermostat cavity for accommodating the thermostat.

Further, the water outlet chamber is connected to the water outlet pipe of the large circulation loop through a flange connection.

Further, the end cover of the water outlet chamber and the mouth of the water outlet pipe of the large circulation loop are integrated to form a flange structure that cooperates with each other.

Further, a radiator is also included, and the water outlet pipe of the large circulation loop passes through the radiator and is then connected to the water return pipe.

Further, it also includes a water supply mechanism connected to the radiator for compensating cooling water.

Further, the cylinder head is provided with a tube bundler for standardizing pipeline layout, and the tube bundler clamps and fixes the water outlet pipe of the large circulation loop and the water outlet pipe of the small circulation loop.

Beneficial effects of the present invention: the automobile engine cooling device of the present invention, by designing the warm air circulation loop and the small circulation loop as the structure of a shared water pipe, not only meets the needs of the main circulation of heat dissipation, but also can make full use of the waste heat of the cooling water to achieve warm air. Wind circulation, pipes are merged to reduce the number of auto parts, simplify the engine layout, and make the engine layout compact, reducing manufacturing costs.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment:

Fig. 1 is a cooling cycle schematic diagram of the present invention;

Fig. 2 is a structural schematic diagram of the present invention.

Detailed ways

Fig. 1 is a schematic diagram of a cooling cycle of the present invention, and Fig. 2 is a schematic structural diagram of the present invention, as shown in the figure: the automobile engine cooling device of this embodiment includes a cylinder block 1, a cylinder head 2, a large circulation loop, a small circulation loop and Warm air circulation loop, the cooling water outlet end of the cylinder head 2 is provided with a water outlet chamber 3, the water outlet chamber 3 is connected with the large circulation loop outlet pipe 4 and the small circulation loop outlet pipe 5, the warm air circulation loop is connected with the small circulation loop The circulation circuit shares the water pipe; the cylinder body 1 and the cylinder head 2 are equipped with water jackets, and each circulation circuit includes corresponding pipes and necessary functional components; the shared water pipe is the water outlet pipe of the warm air circulation circuit and the water outlet pipe of the small circulation circuit 5 is the same pipeline, the warm air circulation function and the small circulation function can be realized by the same pipeline; the water outlet chamber 3 can be integrated with the cylinder head 2, or can be installed on the cylinder head in a detachable way (such as screw connection) 2 above; by designing the warm air circulation loop and the small circulation loop as a shared water pipe structure, it not only meets the needs of the main circulation of heat dissipation, but also makes full use of the waste heat of the cooling water to realize the warm air circulation, and the pipes are combined to reduce the number of auto parts , Simplify the engine layout, and make the engine arrangement compact, reducing the manufacturing cost.

In this embodiment, the cooling circulation system also includes a heater 6, and the water outlet pipe 5 of the small circulation circuit is connected to the return pipe after passing through the heater 6; The structure is simple and easy to implement; in addition, since the large circulation loop also needs to be provided with a heat exchanger, the cooling circulation system also includes a radiator 7, and the outlet pipe 4 of the large circulation loop is connected to the return pipe after passing through the radiator; the return pipe and the The water pump fixed on the cylinder block 1 is connected, and the cooling water is sent back to the water jacket through the water pump 10 under pressure.

In this embodiment, the cooling circulation system also includes a thermostat 8 for opening and closing the large circulation loop, and the water outlet chamber 3 is provided with a thermostat chamber for accommodating the thermostat 8; the thermostat 8 It is preferably a wax-type thermostat. When the cooling temperature is lower than the specified value, the refined paraffin in the temperature-sensing body of the thermostat is solid, and the thermostat valve closes the channel between the engine and the radiator under the action of the spring, and the coolant Return to the engine through the water pump to carry out small circulation in the engine; when the temperature of the coolant reaches the specified value, the paraffin wax begins to melt and gradually becomes liquid, and the volume increases accordingly and presses the rubber tube to make it shrink; when the rubber tube shrinks, the push rod Acting on the upward thrust, the push rod has a downward thrust on the valve to open the valve. At this time, the coolant flows through the radiator and thermostat valve, and then flows back to the engine through the water pump for a large cycle.

In this embodiment, the water outlet chamber 3 and the large circulation circuit outlet pipe 4 are connected through a flange connection; the large circulation circuit outlet pipe 4 is close to the exhaust side, and the temperature of this part is relatively high. If a traditional rubber hose is used for connection, the rubber hose In high temperature, aging is easy to cause damage and failure, and this problem can be avoided by using flange connection; The matching flange structure has high structural strength and prolongs the service life.

In this embodiment, the cooling circulation system further includes a water supply mechanism 9 connected to the radiator for compensating cooling water; the water supply mechanism may be a water tank to supplement the shortage of cooling water.

In this embodiment, the cylinder head 2 is provided with a tube bundler 11 for regulating pipeline layout, and the tube bundler 11 clamps and fixes the large circulation loop outlet pipe 4 and the small circulation loop outlet pipe 5; The pipe 11 makes each pipeline standard arrangement, prevents interference during use.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (8)

1. A cooling device for an automobile engine, comprising a cylinder block, a cylinder head, a large circulation loop, a small circulation loop and a warm air circulation loop, characterized in that: the cooling water outlet end of the cylinder head is provided with a water outlet chamber, and the water outlet The chamber is connected with the water outlet pipe of the large circulation loop and the water outlet pipe of the small circulation loop, and the warm air circulation loop and the small circulation loop share a water pipe. 2. The automobile engine cooling device according to claim 1, further comprising a heater, and the outlet pipe of the small circulation circuit is connected to the return pipe after passing through the heater. 3. The automobile engine cooling device according to claim 2, characterized in that: it also includes a thermostat for opening and closing the large circulation loop, and the water outlet chamber is provided with a thermostat for accommodating the thermostat. cavity. 4. The automobile engine cooling device according to claim 3, wherein the water outlet chamber is connected to the water outlet pipe of the large circulation loop through a flange connection. 5. The automobile engine cooling device according to claim 4, characterized in that: the end cover of the water outlet chamber and the mouth of the water outlet pipe of the large circulation circuit are integrated to form a flange structure that cooperates with each other. 6 . The automobile engine cooling device according to claim 5 , further comprising a radiator, and the water outlet pipe of the large circulation loop passes through the radiator and then connects to the return pipe. 7 . 7. The automobile engine cooling device according to claim 6, further comprising a water supply mechanism connected to the radiator for compensating cooling water. 8. The automobile engine cooling device according to claim 7, characterized in that: the cylinder head is provided with a tube bundler for regulating pipeline layout, and the tube bundler clamps and fixes the outlet pipe of the large circulation circuit And small circulation loop outlet pipe.