CN212985364U

CN212985364U - Water air cooling system and engine

Info

Publication number: CN212985364U
Application number: CN202021898831.2U
Authority: CN
Inventors: 王贵琛; 侯晓良; 刘井年
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-04-16
Anticipated expiration: 2030-09-02

Abstract

The utility model discloses a water air cooling system, include: a control valve; a water air intercooler; the control valve is provided with an inlet, a first outlet and a second outlet, the inlet of the control valve is communicated with the outlet of the water pump, the first outlet of the control valve can be communicated with or cut off from the water air cooler, and the second outlet of the control valve can be communicated with or cut off from the water pump; the export of radiator can communicate with the water pump, and the import of radiator can communicate with the export of water air cooler. When the external environment temperature is higher, the cooling water enters a large circulation. When the external environment is cold, the cooling water enters a small circulation, and the cooling water does not flow into the water air cooler after passing through the thermostat, but returns to the water pump, and the circulation is performed. Because when the external environment is colder, the cooling water does not enter the water-air intercooler, thereby obviously reducing the cooling capacity of the water-air intercooler, and the air passing through the water-air intercooler has higher temperature. The utility model also provides an engine.

Description

Water air cooling system and engine

Technical Field

The utility model relates to a water air cooling technical field of engine, more specifically say, relate to a water air cooling system and an engine.

Background

The current engine generally adopts the pressure boost technique, and the air pressure after the pressure boost improves, and the temperature also improves simultaneously. To increase engine power density and reduce emissions, the pressurized air needs to be cooled by a cooler, referred to as an intercooler. Compared with air-to-air intercooling, water-to-air intercooling has the advantages of high efficiency and small volume, so that the water-to-air intercooler can be widely applied to high-performance engines and large-cylinder-diameter diesel engines (the cylinder diameter of the engine is generally more than or equal to 150 mm).

However, the temperature of the intercooled air cannot be too low, otherwise the fuel burns poorly in the cylinders, affecting the engine performance and also affecting the engine emissions. If the temperature of the cooling water flowing through the water air cooler is too low, the temperature of the air may be too low. Therefore, the following water-air intercooling system is adopted by those skilled in the art, please refer to fig. 1, where fig. 1 is a schematic structural diagram of a water-air intercooling system provided in an embodiment of the prior art. In the attached figure 1, the air cooler is a water air cooler, the air inlet is a cooling water outlet, the thermostat is a temperature saver, the cooling water inlet is a cooling water inlet, the water pump is a water pump, and a radiator is arranged between the cooling water outlet and the cooling water inlet.

When the external environment temperature is high, the cooling water flows along a large circulation, and the flow route is as follows: water-air intercooler, cooling water outlet, radiator, cooling water inlet, water pump and water-air intercooler. When the external environment temperature is lower, the water temperature of the cooling water is lower, the cooling water flows along a small circulation, and the flow route is as follows: water-air intercooler, thermostat, water pump and air intercooler. That is, in the small circulation, the cooling water does not pass through the radiator to dissipate heat, but flows directly through the thermostat back to the water air chiller. Therefore, when the ambient temperature is low, the temperature of the air passing through the water-air intercooler is not lowered too low. However, when the ambient temperature is cold, the cooling capacity of the water-air intercooler remains "rich" even in a small cycle, and the temperature of the air passing through the water-air intercooler remains low.

Therefore, how to reduce the cooling capacity of the water-air intercooler when the ambient temperature is colder, so as to raise the temperature of the air passing through the water-air intercooler and improve the performance of the engine is a key problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at showing the cooling capacity who reduces the water air intercooler when ambient temperature is colder to make the temperature of the air through the water air intercooler rise, improve the performance of engine. In order to achieve the above purpose, the utility model provides a following technical scheme:

a water air chilling system, comprising:

a control valve;

a water air intercooler;

the control valve is provided with an inlet, a first outlet and a second outlet, the inlet of the control valve is communicated with the outlet of the water pump, the first outlet of the control valve can be communicated with or cut off from the water air cooler, and the second outlet of the control valve can be communicated with or cut off from the water pump;

the outlet of the radiator can be communicated with the water pump, and the inlet of the radiator can be communicated with the outlet of the water air cooler.

Preferably, the control valve is a thermostat

Preferably, the flow rate of the first outlet of the thermostat is adjustable and the flow rate of the second outlet of the thermostat is adjustable.

Preferably, the water pump further comprises a three-way valve and a branch connected with the radiator in parallel, wherein an inlet of the three-way valve is communicated with an outlet of the water air cooler, a first outlet of the three-way valve can be communicated with an inlet of the radiator, a second outlet of the three-way valve can be communicated with an inlet of the branch, and an outlet of the branch is communicated with an inlet of the water pump.

The utility model also provides an engine, including the water air inter-cooling system, the water air inter-cooling system is above-mentioned arbitrary water air inter-cooling system.

According to the technical scheme, when the external environment temperature is high, the temperature of cooling water is high, the cooling water enters a large circulation and sequentially passes through the water-air intercooler, the radiator, the water pump, the control valve and the water-air intercooler, and therefore the temperature of the air passing through the water-air intercooler is appropriate. When the external environment is colder, the temperature of the cooling water is lower, and the cooling water enters a small circulation and sequentially passes through the water pump, the control valve and the water pump. The cooling water does not flow into the water air cooler after passing through the thermostat, but returns to the water pump, then flows into the control valve, and circulates in such a way. When the external environment is cold, the cooling water does not enter the water-air intercooler, so that the cooling capacity of the water-air intercooler is remarkably reduced, and the air passing through the water-air intercooler has higher temperature, so that the performance of the engine is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a water-air cooling system according to an embodiment of the prior art;

fig. 2 is a schematic structural diagram of a water cooling system in the air according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a water cooling system in accordance with another embodiment of the present invention.

Detailed Description

The utility model discloses a water air cooling system, this water air cooling system can show the cooling capacity who reduces the water air intercooler when ambient temperature is colder to the temperature that makes the air through the water air intercooler risees, improves the performance of engine. The utility model also discloses an engine.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a water air cooling system, include: control valve, water-air intercooler, water pump, radiator. The control valve is provided with an inlet, a first outlet and a second outlet, the inlet of the control valve is communicated with the outlet of the water pump, the first outlet of the control valve can be communicated with or cut off from the water air cooler, and the second outlet of the control valve can be communicated with or cut off from the water pump. The outlet of the radiator can be communicated with the water pump, and the inlet of the radiator can be communicated with the outlet of the water air cooler.

When external environment temperature is higher, cooling water temperature is higher, and the cooling water gets into the major cycle, passes through in proper order: the water-air intercooler, the radiator, the water pump, the control valve and the water-air intercooler, so that the temperature of the air passing through the water-air intercooler is proper. When the external environment is colder, the temperature of the cooling water is too low, and the cooling water enters a small circulation and sequentially passes through the water pump, the control valve and the water pump. The cooling water does not flow into the water air cooler after passing through the thermostat, but returns to the water pump, then flows into the control valve, and circulates in such a way. When the external environment is cold, the cooling water does not enter the water-air intercooler, so that the cooling capacity of the water-air intercooler is remarkably reduced, and the air passing through the water-air intercooler has higher temperature, so that the performance of the engine is improved.

Further, the control valve is preferably a thermostat. The thermostat can sense the temperature of the cooling water and control the first outlet and the second outlet according to the sensed temperature of the cooling water. If the temperature of the cooling water is higher, the first outlet of the thermostat is communicated, and the cooling water enters a large circulation. If the cooling water temperature is too low, the second outlet of the thermostat is conducted and the cooling water enters a small circulation.

Further, the flow rates of the first and second outlets of the thermostat may be adjustable. When the cooling water temperature is between higher and low, the first outlet and the second outlet of the thermostat are both communicated, and the flow of the first outlet and the flow of the second outlet of the thermostat can be adjusted according to the cooling water temperature, so that the cooling water has proper temperature, and the temperature of the air passing through the water air intercooler is proper.

In one embodiment, a three-way valve and a bypass are added. The branch is connected in parallel with the radiator. The three-way valve is arranged between the water-air intercooler and the radiator. The inlet of the three-way valve is communicated with the outlet of the water-air intercooler. The first outlet of the three-way valve can be in communication with an inlet of the radiator. The second outlet of the three-way valve can be in communication with the inlet of the branch. The outlet of the branch is communicated with the inlet of the water pump. When the external environment temperature is higher, the three-way valve is communicated with the radiator, namely, the first outlet of the three-way valve is communicated with the inlet of the radiator. When the external environment is cold, the three-way valve is communicated with the branch, namely, the second outlet of the three-way valve is communicated with the branch. Therefore, the cooling water does not need to pass through the radiator, and the service life of the radiator is prolonged.

The utility model also discloses an engine, including the cold system in the water sky, this cold system in the water sky is the cold system in the above-mentioned arbitrary water sky, and above-mentioned cold system in the water sky has above-mentioned effect, and the engine that has the cold system in the water sky of above-mentioned has above-mentioned effect equally, so this paper is no longer repeated.

Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A water air cooling system, comprising:

a control valve;

a water air intercooler;

2. The water air cooling system of claim 1, wherein the control valve is a thermostat.

3. The water air cooling system of claim 2, wherein a flow rate of the first outlet of the thermostat is adjustable and a flow rate of the second outlet of the thermostat is adjustable.

4. The water air cooling system of claim 1, further comprising a three-way valve and a branch in parallel with the radiator, an inlet of the three-way valve being in communication with an outlet of the water air cooler, a first outlet of the three-way valve being in communication with an inlet of the radiator, a second outlet of the three-way valve being in communication with an inlet of the branch, and an outlet of the branch being in communication with an inlet of the water pump.

5. An engine comprising a water air cooling system, wherein the water air cooling system is as claimed in any one of claims 1-4.