An amphibious vehicle engine cooling device

Abstract

The utility model discloses a amphibious vehicle engine cooling device, include: engine, be equipped with water outlet and backwater mouth on it, water propeller, including propeller casing and be placed in the drainage port of propeller casing rear end, and the outer wall of drainage port is equipped with side drainage port, heat exchanger, including first fluid side and second fluid side, first fluid side is connected between the backwater mouth and water outlet of engine, and second fluid side water inlet end is connected with side drainage port, and second fluid side water outlet end is connected with the drain pipe. The scheme passes through external water source circulation cooling engine's cooling water, makes full use of external water source, need not set up water cooling module inside, has effectually improved the cooling efficiency of cooling system, saves energy source, and water cooling module and radiator series connection cooling, has effectually improved the cooling efficiency of cooling system, reduces the energy consumption caused by radiator fan.

Description

Technical Field

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

[0002] Amphibious vehicles, also known as amphibious boats or amphibious vessels, are special vehicles that combine the capabilities of both vehicles and boats. They can travel on land like a car and float on water like a boat. Due to their superior amphibious capabilities, they can cross rivers, lakes, and seas without being restricted by bridges or other vessels. They are primarily used in military, disaster relief, and exploration fields, and have later been developed and modified for tourism. To ensure the amphibious vehicle's amphibious capabilities, it requires a high-powered engine. This engine releases a significant amount of heat during operation. To ensure continuous and normal engine operation, a cooling system is needed to dissipate this heat effectively, maintaining the engine at its optimal temperature, which is crucial for vehicle performance. Current amphibious vehicle engines dissipate heat through radiators and convective heat transfer via fans, resulting in low cooling efficiency and high energy consumption.

[0003] For example, Chinese Patent Publication No. CN219795374U, published on October 3, 2023, entitled "A Cooling System for an Amphibious Vehicle," includes a heat dissipation device, an engine water inlet pipe, and an engine water outlet pipe. The engine water inlet pipe and the engine water outlet pipe are located on opposite sides of the heat dissipation device. The heat dissipation device includes a radiator, an intercooler, and an electric fan, positioned horizontally above the hull, with the distance from the engine greater than the radius of the electric fan; the water outlet is connected to the engine water inlet pipe, and the water inlet is connected to the engine water outlet pipe. The angle between the heat dissipation device and the hull is an acute angle of 10 degrees, which increases the horizontal air intake and improves the cooling capacity of the cooling system. The electric fan is evenly distributed on the surface of the radiator and intercooler shells, covering 60%-90% of the shell surface area, enabling rapid cooling.

[0004] The drawbacks of existing patents are that existing amphibious vehicle engines use radiators and cooling fans to achieve convective heat transfer, resulting in low cooling efficiency and high energy consumption. Utility Model Content

[0005] The purpose of this invention is to improve the existing amphibious vehicle engine, which uses radiators and cooling fans to achieve convective heat transfer, resulting in low cooling efficiency and high energy consumption. This invention provides an amphibious vehicle engine cooling device that improves engine cooling efficiency and reduces energy consumption.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cooling device for an amphibious vehicle engine includes: an engine with an outlet and a return water inlet; a water propulsion unit including a propulsion housing and a drain outlet located at the rear end of the propulsion housing, with a side drain outlet on the outer wall of the drain outlet; and a heat exchanger including a first fluid side and a second fluid side, the first fluid side being connected between the engine's return water inlet and outlet, the inlet of the second fluid side being connected to the side drain outlet, and the outlet of the second fluid side being connected to a drain pipe. This technical solution addresses the problem of low cooling efficiency and high energy consumption in existing amphibious vehicle engines that rely on radiators and cooling fans for convective heat transfer, coupled with the continuous high-power operation of the cooling fans. This technical solution utilizes an external water source to cool the engine's cooling water during amphibious vehicle operation. The water propulsion unit uses rotating blades to eject water at high speed from the drain outlet, using the reaction force to propel the vehicle forward. As water is ejected at high speed from the drain outlet, it enters the second fluid side of the heat exchanger for circulation. This connects the first fluid side of the heat exchanger to the engine's cooling water circulation. The water in the second fluid side cools the cooling water discharged from the engine in the first fluid side, dissipating heat from the engine in a timely manner to ensure that the engine operates at its optimal temperature and can continue to function normally. When the amphibious vehicle is floating on water, it mainly relies on an external water source to continuously cool the engine's cooling water, improving cooling efficiency and reducing the energy consumption of the cooling system.

[0008] Preferably, the first fluid side inlet and the engine outlet are connected by an inlet pipe, and the first fluid side outlet and the engine return pipe are connected by a return pipe. The first fluid side is connected to the engine's cooling water circulation system so that the engine's cooling water flows through the heat exchanger, and the external water source in the second fluid side continuously cools the cooling water.

[0009] Preferably, the second fluid-side inlet and outlet are connected by a water pipe, and a pipe filter is installed on the water pipe. External water enters the second fluid-side through the water pipe and exits through the outlet pipe. The pipe filter filters the external water entering the second fluid-side, improving the problem of impurities from the external water clogging the water pipe after prolonged use.

[0010] Preferably, the pipe filter is located at one end of the water pipe near the second fluid side inlet.

[0011] Preferably, the side drain outlets face the same direction as the main drain outlet. The water propulsion system uses rotating blades to eject water at high speed from the drain outlets, using the reaction force to propel the vessel forward. The side drain outlets face the same direction as the main drain outlets to ensure that the high-speed water ejected from the main drain outlets can smoothly enter the side drain outlets.

[0012] Preferably, the propeller housing is provided with a water inlet, and the outer wall of the water inlet is provided with a side water inlet, and the drain pipe is connected to the side water inlet. The water inlet of the water propeller has a certain suction force, so that the external water source forms a circulation at a certain speed between the water propeller and the second fluid side of the heat exchanger.

[0013] Preferably, a drive pump is connected between the water outlet on the first fluid side and the return port of the engine. The drive pump drives the engine's cooling water to circulate between the engine and the first fluid side. The drive pump is used to drive the cooling water in the engine to form a circulation between the engine and the first fluid side of the heat exchanger.

[0014] Preferably, a radiator is connected between the first fluid-side outlet and the engine's return port, and both the heat exchanger and the radiator are connected between the engine's return port and outlet. The engine is still equipped with a radiator for auxiliary cooling.

[0015] Preferably, a cooling fan is provided on the outside of the radiator. When the amphibious vehicle is floating on water, the cooling fan does not perform any work; cooling is achieved solely through the radiator's cooling fins and the circulation of external water. When the amphibious vehicle is traveling on land, the cooling fan is activated for heat dissipation, thus reducing energy consumption caused by the cooling fan.

[0016] Preferably, the engine, heat exchanger, and radiator are all located at the front of the vehicle and are housed within the engine compartment, with the heat exchanger fixed to the inner side wall of the engine compartment.

[0017] Therefore, the present invention has the following beneficial effects: (1) the cooling water of the engine is circulated by an external water source, making full use of the external water source, eliminating the need for an internal water cooling module, effectively improving the cooling efficiency of the cooling system and saving energy; (2) the water cooling module and the radiator are connected in series for cooling, effectively improving the cooling efficiency of the cooling system and reducing the energy consumption caused by the cooling fan. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a structure in Embodiment 1 of this utility model.

[0019] Figure 2 This is a top view of Embodiment 1 of this utility model.

[0020] Figure 3 This is a partial cross-sectional view of the water propulsion device and heat exchanger in Embodiment 1 of this utility model.

[0021] Figure 4 This is a structural schematic diagram of Embodiment 3 of this utility model.

[0022] As shown in the picture:

[0023] Engine 1

[0024] 2. Water propeller; 2.1. Propeller housing; 2.2. Drain outlet; 2.3. Side drain outlet; 2.4. Side inlet; 3. Heat exchanger; 3.1. First fluid side; 3.2. Second fluid side.

[0025] 4. Drain pipe; 5. Inlet pipe; 6. Return pipe.

[0026] 7. Water pipes, 7.1. Pipe filters

[0027] 8. Radiator, 9. Cooling fan, 10. Engine compartment. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0029] Example 1, as Figure 1 , Figure 2 , Figure 3 A cooling device for an amphibious vehicle engine 1 is shown, comprising: an engine 1 having an outlet and a return outlet; a water propulsion unit 2 including a propulsion housing 2.1 and a drain outlet 2.2 located at the rear end of the propulsion housing 2.1, with a side drain outlet 2.3 on the outer wall of the drain outlet 2.2; and a heat exchanger 3 including a first fluid side 3.1 and a second fluid side 3.2, the first fluid side 3.1 being connected between the return outlet and the outlet of the engine 1, the inlet end of the second fluid side 3.2 being connected to the side drain outlet 2.3, and the outlet end of the second fluid side 3.2 being connected to a drain pipe 4.

[0030] Amphibious vehicles, also known as amphibious boats or amphibious vessels, are special vehicles that combine the capabilities of both vehicles and boats. They can travel on land like a car and float on water like a boat. Due to their superior amphibious capabilities, they can cross rivers, lakes, and seas without being restricted by bridges or other vessels. They are primarily used in military, disaster relief, and exploration fields, and have later been developed and modified for tourism. To ensure the amphibious vehicle's amphibious capabilities, it requires a high-powered engine 1. This high-powered engine 1 releases a significant amount of heat during operation. To ensure the engine 1 can operate continuously and normally, a cooling system is needed to dissipate this heat promptly, ensuring the engine operates at its optimal temperature, which is crucial for vehicle performance. Currently, amphibious vehicle engines 1 dissipate heat through a radiator 8 and a cooling fan for convection heat transfer, resulting in low cooling efficiency and high energy consumption. In order to improve the problem that the existing amphibious vehicle engine 1 uses a radiator 8 and a cooling fan to achieve convective heat transfer, which has low cooling efficiency and high energy consumption, a cooling device for the amphibious vehicle engine 1 that improves the cooling efficiency of the engine 1 and reduces energy consumption is provided.

[0031] This technical solution addresses the problems of low cooling efficiency and high energy consumption in existing amphibious vehicle engines, which rely on radiators 8 and fans for convective heat transfer. The radiator fan's continuous high-power operation causes significant cooling system energy consumption. This solution utilizes an external water source to cool the engine's cooling water during amphibious operation. The water propulsion unit 2 uses rotating blades to eject water at high speed from the drain outlet 2.2, using the reaction force to propel the vehicle forward. Simultaneously, the water circulates through the second fluid side 3.2 of the heat exchanger 3, connecting the first fluid side 3.1 of the heat exchanger 3 to the engine's cooling water circulation. The water in the second fluid side 3.2 cools the cooling water discharged from the engine in the first fluid side 3.1, effectively dissipating heat from the engine and ensuring it operates at its optimal temperature for continuous normal operation. During amphibious operation, the amphibious vehicle primarily relies on an external water source for continuous cooling of the engine's cooling water, improving cooling efficiency and reducing energy consumption.

[0032] Example 2, as Figure 1 , Figure 2 , Figure 3 A cooling device for an amphibious vehicle engine 1 is shown, comprising: an engine 1 having an outlet and a return outlet; a water propulsion unit 2 including a propulsion housing 2.1 and a drain outlet 2.2 located at the rear end of the propulsion housing 2.1, with a side drain outlet 2.3 on the outer wall of the drain outlet 2.2; and a heat exchanger 3 including a first fluid side 3.1 and a second fluid side 3.2, the first fluid side 3.1 being connected between the return outlet and the outlet of the engine 1, the inlet end of the second fluid side 3.2 being connected to the side drain outlet 2.3, and the outlet end of the second fluid side 3.2 being connected to a drain pipe 4.

[0033] Specifically, such as Figure 1 , Figure 2 , Figure 3 As shown, the inlet of the first fluid side 3.1 and the outlet of the engine 1 are connected by an inlet pipe 75, and the outlet of the first fluid side 3.1 and the return port of the engine 1 are connected by a return pipe 76. The first fluid side 3.1 is connected to the cooling water circulation of the engine 1 so that the cooling water of the engine 1 flows through the heat exchanger 3 and is continuously cooled by an external water source in the second fluid side 3.2.

[0034] The side drain outlet 2.3 is further optimized, with its orientation matching that of drain outlet 2.2. The water propulsion unit 2 uses rotating blades to eject water at high speed from drain outlet 2.2, using the reaction force to propel the vessel forward. The orientation of side drain outlet 2.3 matches that of drain outlet 2.2 to ensure that the high-speed water ejected from drain outlet 2.2 can smoothly enter side drain outlet 2.3.

[0035] The second fluid side 3.2 is further optimized. The water inlet of the second fluid side 3.2 is connected to the side drain outlet 2.3 via a water pipe 7, and a pipe filter 7.1 is installed on the water pipe 7. External water enters the second fluid side 3.2 through the water pipe 7 and exits through the drain pipe 4. The external water entering the second fluid side 3.2 is filtered by the pipe filter 7.1, which improves the problem of impurities from the external water clogging the water pipe 7 after long-term use.

[0036] The pipeline filter 7.1 is further optimized. The pipeline filter 7.1 is located on the water pipe 7 at one end near the inlet end of the second fluid side 3.2.

[0037] In this embodiment, a drive pump is connected between the outlet of the first fluid side 3.1 and the return port of the engine 1. The drive pump drives the cooling water of the engine 1 to circulate between the engine 1 and the first fluid side 3.1. The drive pump is used to drive the cooling water in the engine 1 to form a circulation between the engine 1 and the first fluid side 3.1 of the heat exchanger 3. Specifically, it also includes an engine 1, heat exchanger 3 and radiator 8 located at the front of the vehicle, all placed in the engine compartment 10, with the heat exchanger 3 fixed to the inner side wall of the engine compartment 10.

[0038] Example 3, as Figure 4 A cooling device for an amphibious vehicle engine 1 is shown, comprising: an engine 1 having an outlet and a return outlet; a water propulsion unit 2 including a propulsion housing 2.1 and a drain outlet 2.2 located at the rear end of the propulsion housing 2.1, with a side drain outlet 2.3 on the outer wall of the drain outlet 2.2; and a heat exchanger 3 including a first fluid side 3.1 and a second fluid side 3.2, the first fluid side 3.1 being connected between the return outlet and the outlet of the engine 1, the inlet end of the second fluid side 3.2 being connected to the side drain outlet 2.3, and the outlet end of the second fluid side 3.2 being connected to a drain pipe 4.

[0039] In this embodiment, as Figure 4 As shown, a radiator 8 is connected between the water outlet of the first fluid side 3.1 and the water return port of the engine 1. Both the heat exchanger 3 and the radiator 8 are connected between the water return port and the water outlet of the engine 1. The engine 1 is still equipped with a radiator 8 for auxiliary cooling. A cooling fan 9 is installed on the outside of the radiator 8. When the amphibious vehicle is floating on water, the cooling fan 9 does not perform any work; cooling is achieved solely through the cooling fins of the radiator 8 and the circulation of external water. When the amphibious vehicle is traveling on land, the cooling fan 9 is turned on for cooling, thus reducing the energy consumption caused by the cooling fan 9.

[0040] Specifically, the inlet of the first fluid side 3.1 and the outlet of the engine 1 are connected by an inlet pipe 75, and the outlet of the first fluid side 3.1 and the return port of the engine 1 are connected by a return pipe 76. The first fluid side 3.1 is connected to the cooling water circulation of the engine 1 so that the cooling water of the engine 1 flows through the heat exchanger 3 and is continuously cooled by an external water source in the second fluid side 3.2.

[0041] The side drain outlet 2.3 is further optimized, with its orientation matching that of drain outlet 2.2. The water propulsion unit 2 uses rotating blades to eject water at high speed from drain outlet 2.2, using the reaction force to propel the vessel forward. The orientation of side drain outlet 2.3 matches that of drain outlet 2.2 to ensure that the high-speed water ejected from drain outlet 2.2 can smoothly enter side drain outlet 2.3.

[0042] The second fluid side 3.2 is further optimized. The water inlet of the second fluid side 3.2 is connected to the side drain outlet 2.3 via a water pipe 7, and a pipe filter 7.1 is installed on the water pipe 7. External water enters the second fluid side 3.2 through the water pipe 7 and exits through the drain pipe 4. The external water entering the second fluid side 3.2 is filtered by the pipe filter 7.1, which improves the problem of impurities from the external water clogging the water pipe 7 after long-term use.

[0043] The pipeline filter 7.1 is further optimized. The pipeline filter 7.1 is located on the water pipe 7 at one end near the inlet end of the second fluid side 3.2.

[0044] In this embodiment, a drive pump is connected between the outlet of the first fluid side 3.1 and the return port of the engine 1. The drive pump drives the cooling water of the engine 1 to circulate between the engine 1 and the first fluid side 3.1. The drive pump is used to drive the cooling water in the engine 1 to form a circulation between the engine 1 and the first fluid side 3.1 of the heat exchanger 3. Specifically, it also includes an engine 1, heat exchanger 3 and radiator 8 located at the front of the vehicle, all placed in the engine compartment 10, with the heat exchanger 3 fixed to the inner side wall of the engine compartment 10.

[0045] The above embodiment uses external water source to circulate and cool the engine 1, making full use of the external water source. There is no need to set up an internal water cooling module, which effectively improves the cooling efficiency of the cooling system and saves energy; (2) The water cooling module and the radiator 8 are connected in series for cooling, which effectively improves the cooling efficiency of the cooling system and reduces the energy consumption caused by the cooling fan 9.

[0046] Example 4: A cooling device for an amphibious vehicle engine 1, comprising: an engine 1 having an outlet and a return outlet; a water propulsion unit 2, including a propulsion housing 2.1 and a drain outlet 2.2 located at the rear end of the propulsion housing 2.1, with a side drain outlet 2.3 on the outer wall of the drain outlet 2.2; and a heat exchanger 3, including a first fluid side 3.1 and a second fluid side 3.2, wherein the first fluid side 3.1 is connected between the return outlet and the outlet of the engine 1, the inlet end of the second fluid side 3.2 is connected to the side drain outlet 2.3, and the outlet end of the second fluid side 3.2 is connected to a drain pipe 4.

[0047] In this embodiment, the propeller housing is provided with a water inlet, and the outer wall of the water inlet is provided with a side water inlet 2.4. The drain pipe 4 is connected to the side water inlet 2.4. The water inlet of the water propeller has a certain suction force, so that the external water source forms a circulation at a certain speed between the water propeller and the second fluid side 3.2 of the heat exchanger 3.

[0048] The side drain outlet 2.3 is further optimized, with its orientation matching that of drain outlet 2.2. The water propulsion unit 2 uses rotating blades to eject water at high speed from drain outlet 2.2, using the reaction force to propel the vessel forward. The orientation of side drain outlet 2.3 matches that of drain outlet 2.2 to ensure that the high-speed water ejected from drain outlet 2.2 can smoothly enter side drain outlet 2.3.

[0049] Specifically, the inlet of the first fluid side 3.1 and the outlet of the engine 1 are connected by an inlet pipe 75, and the outlet of the first fluid side 3.1 and the return port of the engine 1 are connected by a return pipe 76. The first fluid side 3.1 is connected to the cooling water circulation of the engine 1 so that the cooling water of the engine 1 flows through the heat exchanger 3 and is continuously cooled by an external water source in the second fluid side 3.2.

[0050] The second fluid side 3.2 is further optimized. The water inlet of the second fluid side 3.2 is connected to the side drain outlet 2.3 via a water pipe 7, and a pipe filter 7.1 is installed on the water pipe 7. External water enters the second fluid side 3.2 through the water pipe 7 and exits through the drain pipe 4. The external water entering the second fluid side 3.2 is filtered by the pipe filter 7.1, which improves the problem of impurities from the external water clogging the water pipe 7 after long-term use.

[0051] The pipeline filter 7.1 is further optimized. The pipeline filter 7.1 is located on the water pipe 7 at one end near the inlet end of the second fluid side 3.2.

[0052] In this embodiment, a drive pump is connected between the outlet of the first fluid side 3.1 and the return port of the engine 1. The drive pump drives the cooling water of the engine 1 to circulate between the engine 1 and the first fluid side 3.1. The drive pump is used to drive the cooling water in the engine 1 to form a circulation between the engine 1 and the first fluid side 3.1 of the heat exchanger 3. Specifically, it also includes an engine 1, heat exchanger 3 and radiator 8 located at the front of the vehicle, all placed in the engine compartment 10, with the heat exchanger 3 fixed to the inner side wall of the engine compartment 10.

[0053] The specific embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the specific scope of implementation of this utility model. All equivalent changes made to the shape and structure of this utility model should be included within the protection scope of this utility model.

Claims

1. A cooling device for an amphibious vehicle engine, characterized in that, include: The engine is equipped with a water outlet and a water return outlet; A water propulsion device includes a propulsion housing and a drain outlet located at the rear end of the propulsion housing, with a side drain outlet provided on the outer wall of the drain outlet; The heat exchanger includes a first fluid side and a second fluid side. The first fluid side is connected between the engine's return water port and outlet water port. The inlet end of the second fluid side is connected to the side drain port, and the outlet end of the second fluid side is connected to a drain pipe.

2. The amphibious vehicle engine cooling device according to claim 1, characterized in that, The first fluid side water inlet and the engine water outlet are connected by an inlet pipe, and the first fluid side water outlet and the engine water return are connected by a return pipe.

3. The amphibious vehicle engine cooling device according to claim 1, characterized in that, The second fluid side inlet and the side outlet are connected by a water pipe, and the water pipe is equipped with a pipe filter.

4. The amphibious vehicle engine cooling device according to claim 3, characterized in that, The pipe filter is located on one end of the water pipe near the inlet end on the second fluid side.

5. An amphibious vehicle engine cooling device according to claim 1, 2, 3, or 4, characterized in that, The side drain outlet faces the same direction as the main drain outlet.

6. A cooling device for an amphibious vehicle engine according to claim 1, 2, 3, or 4, characterized in that, The propeller housing is provided with a water inlet, and the outer wall of the water inlet is provided with a side water inlet. The drain pipe is connected to the side water inlet.

7. An amphibious vehicle engine cooling device according to claim 1, 2, 3, or 4, characterized in that, A drive pump is connected between the water outlet of the first fluid side and the return water port of the engine. The drive pump drives the cooling water of the engine to circulate between the engine and the first fluid side.

8. An amphibious vehicle engine cooling device according to claim 1, 2, 3, or 4, characterized in that, A radiator is connected between the first fluid side outlet and the engine return port, and both the heat exchanger and the radiator are connected between the engine return port and the outlet.

9. A cooling device for an amphibious vehicle engine according to claim 8, characterized in that, A cooling fan is provided on the outside of the radiator.

10. A cooling device for an amphibious vehicle engine according to claim 9, characterized in that, It also includes an engine compartment located at the front of the vehicle, in which the engine, heat exchanger and radiator are all housed, and the heat exchanger is fixed to the inner side wall of the engine compartment.

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