Engine cooling system

Abstract

The utility model discloses an engine cooling system which comprises a radiator, an engine air cylinder water jacket is connected with the water inlet end of the radiator through an upper rubber hose, the water outlet end of the radiator is connected with the engine air cylinder water jacket through a lower rubber hose and a water pump, and the end of an exhaust pipe of the radiator is connected with a cooling liquid expansion water tank and an engine water jacket exhaust pipe. The cooling liquid expansion water tank is communicated with a communicating pipe through a cooling liquid expansion water tank pipe, one end of the communicating pipe is connected with a heating device, the other end of the communicating pipe is connected with a water pump through a thermostat, and the upper rubber hose is further communicated with an air conditioner heating system heat exchanger through an air pipe. By arranging the radiator, the upper rubber hose, the lower rubber hose, the exhaust pipe, the cooling liquid expansion water tank, the cooling liquid expansion water tank pipe, the throttle valve hot water pipe, the air pipe and the like, one end of the upper rubber hose is communicated with the air conditioner warm air system heat exchanger, so that heat generated by an engine can be reasonably utilized, resource waste is reduced, and the resource utilization rate is increased.

Description

Technical Field

[0001] This utility model belongs to the field of engine technology, and in particular relates to an engine cooling system. Background Technology

[0002] Engines generate heat during operation, which affects their performance and lifespan. Therefore, a cooling control system is used to cool the engine during operation.

[0003] Currently, the heat generated by the engine is not being used effectively in the engine system, resulting in a waste of resources. Utility Model Content

[0004] In view of the shortcomings and defects in the existing technology, the purpose of this utility model is to provide an engine cooling system that solves the problem of the existing engine cooling control system failing to make reasonable use of the heat generated by the engine, resulting in resource waste.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an engine cooling system for use on an engine, including a radiator, a cooling fan mounted on the radiator, the outlet of the engine cylinder water jacket connected to the inlet of the radiator via an upper rubber hose, the outlet of the radiator connected to the inlet of the engine cylinder water jacket via a lower rubber hose and a water pump, a three-way valve connected to the end of the radiator's exhaust pipe, the other two ends of the three-way valve connected to a coolant expansion tank and an engine water jacket exhaust pipe respectively, the other end of the coolant expansion tank connected to a connecting pipe via a coolant expansion tank pipe, one end of the connecting pipe connected to a heater, the other end of the connecting pipe connected to a water pump via a thermostat, the upper rubber hose connected to the connecting pipe via a throttle body hot water pipe at the middle of the end near the engine, and the upper rubber hose also connected to the heat exchanger of the air conditioning heating system via a duct at the end near the engine.

[0006] As a further improvement of this utility model, the coolant expansion tank pipe is made of transparent material.

[0007] As a further improvement of this utility model, a liquid level sensor is provided in the coolant expansion tank, and the liquid level sensor is connected to an audible alarm.

[0008] As a further improvement of this utility model, a Venturi tube is provided in the middle of the lower rubber hose.

[0009] As a further improvement of this utility model, a filter screen is provided at the end of the lower rubber hose near the radiator.

[0010] As a further improvement of this utility model, the upper rubber hose includes two detachable sections, upper and lower.

[0011] Compared with the prior art, this utility model has the following advantages:

[0012] 1. By installing a radiator, upper rubber hose, lower rubber hose, exhaust pipe, coolant expansion tank, coolant expansion tank pipe, throttle body hot water pipe, and air duct, the engine cylinder water jacket is connected to the radiator via the upper and lower rubber hoses. The radiator cools the hot water flowing from the engine cylinder water jacket before re-entering it, forming a cooling water circulation. Additionally, the hot steam generated during radiator cooling is input into the coolant expansion tank through the radiator exhaust pipe for cooling, while simultaneously, hot air from the engine water jacket exhaust pipe is also input into the coolant expansion tank for cooling. The cooled liquid and vapor then cool the heat from the heater unit through a connecting pipe.

[0013] In addition, the upper rubber hose is connected to the connecting pipe via the throttle body hot water pipe, and the connecting pipe is connected to the thermostat. Therefore, some of the hot water on the upper rubber hose is diverted into the connecting pipe and then enters the thermostat through the connecting pipe. The thermostat adjusts the temperature of the water entering the engine water jacket in accordance with the cooling water to keep the temperature of the water at a moderate level and prevent it from being too cold or too hot.

[0014] In addition, one end of the upper rubber hose is connected to the heat exchanger of the air conditioning and heating system, so that the heat generated by the engine can be used in a reasonable way, reducing resource waste and improving resource utilization.

[0015] 2. By installing a liquid level sensor in the coolant expansion tank, which is connected to an audible alarm, an alarm can be triggered in a timely manner when the coolant in the expansion tank is insufficient.

[0016] 3. By installing a Venturi tube in the middle of the lower rubber hose, impurities in the water circulation system can be separated and treated, increasing the fluid flow rate.

[0017] 4. By making the upper rubber hose into two detachable sections, it is easy to disassemble, clean, or replace. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] In the diagram: 1. Radiator; 2. Cooling fan; 3. Engine cylinder water jacket; 4. Upper rubber hose; 5. Lower rubber hose; 6. Water pump; 7. Three-way valve; 8. Coolant expansion tank; 9. Engine water jacket exhaust pipe; 10. Coolant expansion tank pipe; 11. Connecting pipe; 12. Throttle valve hot water pipe; 13. Air duct; 14. Air conditioning heating system heat exchanger; 15. Heating device. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1 The present invention will be described in further detail. For clarity, only the structures related to the inventive features of the present invention are shown in the figures.

[0022] For ease of description, the coordinate system is defined as follows: Figure 1 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0023] This utility model discloses an engine cooling system. (Refer to...) Figure 1 An engine cooling system for use on an engine includes a radiator 1, on which a cooling fan 2 is mounted. The outlet of the engine cylinder water jacket 3 is connected to the inlet of the radiator 1 via an upper rubber hose 4. The upper rubber hose 4 includes two detachable sections, upper and lower, which are connected by a connector, thus facilitating disassembly, cleaning, or replacement.

[0024] The outlet of radiator 1 is connected to the inlet of engine cylinder water jacket 3 via a lower rubber hose 5 and a water pump 6. The exhaust pipe of radiator 1 is connected to a three-way valve 7. The other two ends of the three-way valve 7 are connected to the coolant expansion tank 8 and the engine water jacket exhaust pipe 9, respectively. The coolant expansion tank pipe 10 is made of transparent material. The other end of the coolant expansion tank 8 is connected to a connecting pipe 11 via the coolant expansion tank pipe 10. One end of the connecting pipe 11 is connected to the heater, and the other end of the connecting pipe 11 is connected to the water pump 6 via a thermostat. The upper rubber hose 4 is connected to the connecting pipe 11 via a throttle body hot water pipe 12 at the middle of the end near the engine. The upper rubber hose 4 is also connected to the air conditioning heating system heat exchanger 14 via an air duct 13 at the end near the engine.

[0025] In addition, a liquid level sensor is installed in the coolant expansion tank 8, which is connected to an audible alarm; therefore, an alarm can be sounded in time when the coolant in the coolant expansion tank 8 is insufficient.

[0026] In addition, a venturi tube is provided in the middle of the lower rubber hose 5; this can separate impurities in the water circulation system and increase the fluid flow rate. A filter screen is provided at the end of the lower rubber hose 5 near the radiator 1.

[0027] This invention incorporates a radiator 1, an upper rubber hose 4, a lower rubber hose 5, an exhaust pipe, a coolant expansion tank 8, a coolant expansion tank pipe 10, a throttle body hot water pipe 12, and an air duct 13. The engine cylinder water jacket 3 is connected to the radiator 1 via the upper and lower rubber hoses 4 and 5. The radiator 1 cools the hot water flowing from the engine cylinder water jacket 3 before re-entering it, forming a cooling water circulation. Additionally, the hot steam generated during the radiator 1's cooling process is input into the coolant expansion tank 8 through the radiator 1's exhaust pipe for cooling. Simultaneously, hot air from the engine water jacket exhaust pipe 9 is also input into the coolant expansion tank 8 for cooling. The cooled liquid and gas then cool the heat from the heater 15 within the connecting pipe 11.

[0028] In addition, the upper rubber hose 4 is connected to the connecting pipe 11 via the throttle body hot water pipe 12, and the connecting pipe 11 is connected to the thermostat. Therefore, some of the hot water on the upper rubber hose 4 is diverted into the connecting pipe 11 and enters the thermostat through the connecting pipe 11. The thermostat adjusts the temperature of the water by combining the cooling water to keep the temperature of the water entering the engine water jacket moderate and prevent it from being too cold or too hot.

[0029] In addition, one end of the upper rubber hose 4 is connected to the heat exchanger 14 of the air conditioning and heating system, so that the heat generated by the engine can be used rationally, reducing resource waste and improving resource utilization. For example, during the cold start stage (below 70℃): the thermostat closes the large circulation valve, and the coolant only circulates in a small loop inside the engine to help it quickly warm up to the operating temperature. During the normal operation stage (80-95℃): the thermostat opens the large circulation valve, and the coolant flows through the radiator 1 to dissipate heat and prevent the engine from overheating; during the transition stage (70-80℃): both large and small circulation occur simultaneously, gradually transitioning to a full cooling state.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. It should be understood that the specific embodiments described herein are only for understanding this utility model and are not intended to limit this utility model. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

Claims

1. An engine cooling system for use on an engine, characterised in that: The system includes a radiator equipped with a cooling fan. The outlet of the engine cylinder water jacket is connected to the inlet of the radiator via an upper rubber hose. The outlet of the radiator is connected to the inlet of the engine cylinder water jacket via a lower rubber hose and a water pump. A three-way valve is connected to the end of the radiator's exhaust pipe. The other two ends of the three-way valve are connected to the coolant expansion tank and the engine water jacket exhaust pipe, respectively. The other end of the coolant expansion tank is connected to a connecting pipe via a coolant expansion tank pipe. One end of the connecting pipe is connected to the heating device, and the other end is connected to the water pump via a thermostat. The upper rubber hose is connected to the connecting pipe via a throttle body hot water pipe at the middle of its end near the engine. The upper rubber hose is also connected to the heat exchanger of the air conditioning heating system via an air duct at its end near the engine.

2. An engine cooling system as claimed in claim 1, wherein: The coolant expansion tank pipe is made of transparent material.

3. An engine cooling system as claimed in claim 1, wherein: A liquid level sensor is installed in the coolant expansion tank, and the liquid level sensor is connected to an audible alarm.

4. An engine cooling system as claimed in claim 1, wherein: The lower rubber hose is provided with a venturi tube in the middle.

5. An engine cooling system as claimed in claim 1, wherein: The lower rubber hose has a filter screen at the end near the radiator.

6. An engine cooling system as claimed in claim 1, wherein: The upper rubber hose consists of two detachable sections, upper and lower.

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