Diesel engine cooling equipment

Abstract

The utility model discloses a diesel engine cooling device which comprises a diesel engine body and a cooling liquid tank, a thermostat assembly is arranged on the diesel engine body, the cooling liquid tank is connected with the thermostat assembly through a first pipeline, the cooling liquid tank is used for storing external cooling liquid, and the cooling liquid tank is connected with the diesel engine body through a second pipeline. An exhaust pipe is arranged on one side of the cooling liquid tank, a containing pipe body is arranged on the side, facing the cooling liquid tank, of the diesel engine body, one end of the exhaust pipe is connected with one end of the containing pipe body, and a blocking piece is arranged at the other end of the containing pipe body. The exhaust pipe is arranged on one side of the cooling liquid tank, the containing pipe body is arranged on the side, facing the cooling liquid tank, of the diesel engine body, one end of the exhaust pipe is connected with one end of the containing pipe body, and the blocking piece is arranged at the other end of the containing pipe body. The air in the containing pipe body is exhausted or one end of the containing pipe body is sealed by manually operating the blocking piece, so that the storage amount of the cooling liquid in the cooling liquid tank is greatly increased compared with the storage amount before exhausting.

Description

A diesel engine cooling device Technical Field

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

[0002] A diesel engine block generally consists of a free end, a power output end, and a housing. The free end refers to the end opposite to the power output end, also known as the front end, and is mainly used to install various shafts and pump drive gears. The power output end refers to the end of the diesel engine that outputs power, also known as the rear end. The piston in the housing moves back and forth at high speed in the cylinder bore and is a key component of the diesel engine block.

[0003] During operation, diesel engines generate a large amount of heat due to fuel combustion and friction between moving parts, causing these components to become intensely heated. Without proper cooling, the normal operation of the diesel engine cannot be guaranteed. The function of the cooling system is to ensure that the diesel engine operates at a normal temperature, dissipating the heat generated during operation. The cooling system affects the reliability of the diesel engine, its power consumption, as well as the size, weight, and maintainability of the entire power unit.

[0004] An existing diesel engine cooling system is affected by the engine's structure, resulting in residual air in the cooling chamber. After injecting coolant, the actual amount of coolant injected is less than the total amount of coolant that can be injected. This may cause insufficient coolant when the engine is running, which is not conducive to improving the service life of the diesel engine.

[0005] Therefore, there is an urgent need to propose a diesel engine cooling device to solve the problem. Summary of the Invention

[0006] Therefore, the purpose of this utility model is to provide a diesel engine cooling device to ensure a stable supply of coolant, thereby effectively improving the service life of the diesel engine.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a diesel engine cooling device, which includes a diesel engine body and a coolant tank, a thermostat assembly is provided on the diesel engine body, the coolant tank is connected to the thermostat assembly through a first pipe, the coolant tank is used to store external coolant, and the coolant tank is connected to the diesel engine body through a second pipe;

[0008] An exhaust pipe is provided on one side of the coolant tank, and a receiving pipe is provided on the side of the diesel engine body facing the coolant tank. One end of the exhaust pipe is connected to one end of the receiving pipe, and a plug is provided at the other end of the receiving pipe.

[0009] Furthermore, the receiving tube is placed on one side of the thermostat assembly, and the receiving tube includes an integrally formed connecting tube and an exhaust tube. One end of the exhaust pipe is connected to the connecting tube, and the plug is disposed at the end of the exhaust tube.

[0010] Furthermore, the connecting pipe is arranged at an angle downwards, and the air outlet pipe is arranged horizontally.

[0011] Furthermore, the coolant tank has a rectangular structure, and a vent is provided on one side of the coolant tank. The vent pipe is connected to the vent, and the vent is located at the upper end of the coolant tank.

[0012] Furthermore, one end of the second pipe is located at the bottom end of the coolant tank.

[0013] Furthermore, an inlet valve is provided at the upper end of the coolant tank, through which the coolant enters the coolant tank, and an inlet pipe is provided on one side of the inlet valve.

[0014] Furthermore, the diesel engine cooling device also includes a base, the base including four legs and a connecting plate connecting the four legs, each of the four legs having a locking block at its upper end, and the diesel engine body having L-shaped connecting blocks at its four corners, the connecting blocks being fixed to the locking blocks by fasteners.

[0015] Furthermore, a drive wheel assembly is provided on one side of the diesel engine body for connecting a cooling fan, and a cover housing is provided on one side of the base.

[0016] Furthermore, an L-shaped support is provided on one side of the base. The support consists of two L-shaped support plates, both of which are fixed on one of the connecting plates. The connecting plate faces the coolant tank. A connecting piece is provided on the support plate. A retaining hole is provided on the cover shell. The cover shell is fixed on the connecting piece by fasteners.

[0017] Furthermore, the upper end of the support is provided with a locking hole, and the coolant tank is fixed to the support by a locking member; the bottom end of the coolant tank is provided with a support block, and the support block is provided with a support hole, and the locking member passes through the locking hole and is fixed in the support hole.

[0018] In summary, this utility model provides a diesel engine cooling device by having an exhaust pipe on one side of the coolant tank and a receiving pipe on the side of the diesel engine body facing the coolant tank. One end of the exhaust pipe is connected to one end of the receiving pipe, and the other end of the receiving pipe is equipped with a plug to expel air from the receiving pipe or to manually seal one end of the receiving pipe to prevent coolant from flowing out. This significantly increases the coolant storage capacity in the coolant tank compared to before the exhaust pipe was installed, effectively ensuring a stable coolant supply. With a sufficient coolant supply, more coolant flows into the cooling channels of the diesel engine body, ensuring the heat dissipation quality of the diesel engine body and thus effectively extending the service life of the diesel engine. Attached Figure Description

[0019] Figure 1 is a structural schematic diagram of a diesel engine cooling device according to the present invention;

[0020] Figure 2 is a structural schematic diagram of the diesel engine body of this utility model;

[0021] Figure 3 is a schematic diagram of the structure of a diesel engine cooling device of the present invention after the diesel engine body is hidden.

[0022] Figure 4 is a schematic diagram of the structure of a diesel engine cooling device of the present invention after concealing the diesel engine body and the cover shell;

[0023] Figure 5 is a schematic diagram of the structure of the cover shell of this utility model;

[0024] Figure 6 is a schematic diagram of the coolant tank of this utility model.

[0025] Explanation of key component symbols:

[0026] 100. Diesel engine body; 110. Thermostat assembly; 120. Receiving pipe; 121. Blocking component; 122. Connecting pipe; 123. Exhaust pipe; 130. Connecting block; 131. Perforation; 140. Drive wheel assembly; 200. Coolant tank; 210. Exhaust port; 220. Return port; 230. Inlet valve; 240. Inlet pipe; 250. Support block; 251. Support hole; 301. First pipe; 302. Second pipe; 303. Exhaust pipe; 304. Return pipe; 400. Base; 410. Support leg; 420. Connecting plate; 430. Locking block; 440. Locking fastener; 500. Cover housing; 510. Holding hole; 600. Support; 610. Support plate; 620. Connecting piece; 621. Connecting hole. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] 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.

[0030] Please refer to Figures 1 to 6. This utility model discloses a diesel engine cooling device applied in the field of fire pumps. It includes a diesel engine body 100 and a coolant tank 200. A thermostat assembly 110 is installed on the diesel engine body 100. The coolant tank 200 is connected to the thermostat assembly 110 via a first pipe 301. Cooling water channels (not shown) are provided inside the diesel engine body 100. The coolant tank 200 is used to store external coolant and is connected to the cooling water channels inside the diesel engine body 100 via a second pipe 302. The coolant tank 200 is connected to the thermostat assembly 110. Together with the cooling water channels inside the diesel engine body 100, they form the cooling system of the diesel engine; the coolant tank 200 is located on one side above the diesel engine body 100 so that when the main valve of the thermostat assembly 110 is opened, the coolant in the coolant tank 200 flows through the thermostat assembly 110 into the cooling water channels inside the diesel engine body 100; the design of the cooling water channels inside the diesel engine body 100 is a known technology and will not be described in detail here. For details, please refer to the design of the 4DW92-68GG2-WT10W diesel engine produced by Wuxi Diesel Engine Plant of FAW Jiefang Automobile Co., Ltd.

[0031] In this invention, because air is present in the cooling channels inside the diesel engine, it is difficult for the air to be expelled when coolant is added to the coolant tank 200. This results in the coolant level in the coolant tank 200 being artificially high, which does not match the actual volume occupied by the coolant. Therefore, the actual amount of coolant stored in the coolant tank 200 is lower than its rated capacity. To increase the actual amount of coolant stored in the coolant tank 200 and ensure a stable supply of coolant, this invention adopts the following structure to solve this problem.

[0032] An exhaust pipe 303 is provided on one side of the coolant tank 200, and a receiving tube 120 is provided on the side of the diesel engine body 100 facing the coolant tank 200. One end of the exhaust pipe 303 is connected to one end of the receiving tube 120, and a plug 121 is provided at the other end of the receiving tube 120. The plug 121 can be manually operated to open the other end of the receiving tube 120 to expel the air in the receiving tube 120, or the plug 121 can be manually operated to close one end of the receiving tube 120 to prevent the coolant in the receiving tube 120 from flowing out. In this embodiment, the plug 121 is a ball valve structure, or alternatively, the plug 121 is a sealing plug structure.

[0033] When coolant is added to the coolant tank 200, the air inside the coolant tank 200 is compressed by the coolant and enters the receiving tube 120 through the exhaust pipe 303. By opening the plug 121 at the end of the receiving tube 120, the air inside the receiving tube 120 is expelled. In this way, the coolant in the coolant tank 200 enters the receiving tube 120 through the exhaust pipe 303 until liquid flows out from the plug 121 at the end of the receiving tube 120. This indicates that the air in the coolant tank 200 has been expelled through the exhaust pipe 303. As a result, the coolant storage in the coolant tank 200 is significantly increased compared to before the air was expelled, effectively ensuring a stable supply of coolant in the coolant tank 200. With a sufficient supply of coolant, more coolant flows into the cooling channels of the diesel engine body 100, ensuring the heat dissipation quality of the diesel engine body 100, thereby effectively improving the service life of the diesel engine.

[0034] In one embodiment, the receiving tube 120 is placed on one side of the thermostat assembly 110. The receiving tube 120 includes an integrally formed connecting tube 122 and an exhaust tube 123. One end of the exhaust pipe 303 is connected to the connecting tube 122. The connecting tube 122 is arranged obliquely downward to facilitate the coolant entering the connecting tube through the exhaust pipe 303 to flow better into the connecting tube 122. The exhaust tube 123 is arranged horizontally to ensure that the coolant entering the exhaust tube 122 from the exhaust tube 122 can flow out slowly to avoid waste of coolant. In addition, the plug 121 is arranged at the end of the exhaust tube 123. Placing the exhaust tube 123 horizontally also facilitates manual operation of the plug 121 to open or close the receiving tube 120.

[0035] In one embodiment, the coolant tank 200 has a rectangular structure, and a vent 210 is provided on one side of the coolant tank 200. The vent pipe 303 is connected to the vent 210. The vent 210 is located at the upper end of the coolant tank 200 to reduce the amount of coolant in the coolant tank 200 that enters the receiving tube 120 through the vent pipe 303, thereby avoiding waste of coolant.

[0036] In one embodiment, one end of the second pipe 302 is located at the bottom end of the coolant tank 200 so that the returning coolant can be better mixed with the coolant in the coolant tank 200 for the next round of cooling return operation; specifically, the bottom end of the coolant tank 200 is provided with a return port 220, and the second pipe 302 is connected to the return port 220.

[0037] In one embodiment, an inlet valve 230 is provided at the upper end of the coolant tank 200, through which coolant enters the coolant tank 200. An inlet pipe 240 is provided on one side of the inlet valve 230. In this embodiment, the inlet valve 230 is a one-way valve to prevent external air from entering the coolant tank 200 through the inlet pipe 240.

[0038] In one embodiment, the diesel engine cooling device further includes a base 400, which includes four legs 410 and a connecting plate 420 connecting the four legs 410. Each of the four legs 410 has a locking block 430 at its upper end. The diesel engine body 100 has L-shaped connecting blocks 130 at its four corners. The connecting blocks 130 are fixed to the locking blocks 430 by fasteners 440. Specifically, the fasteners 440 are bolts. The locking blocks 430 have fixing holes (not shown in the figure), and the connecting blocks 130 have through holes 131. The fasteners 440 pass through the through holes 131 and are engaged in the fixing holes, thereby achieving a stable connection between the diesel engine body 100 and the base 400.

[0039] In one embodiment, a drive wheel assembly 140 is provided on one side of the diesel engine body 100 for connecting a cooling fan (not shown), and a cover housing 500 is provided on one side of the base 400 to cover the cooling fan on one side of the diesel engine body 100. In this embodiment, the drive wheel assembly 140 is a known technology and will not be described in detail here.

[0040] Furthermore, an L-shaped support 600 is provided on one side of the base 400. The support 600 is composed of two L-shaped support plates 610. Both support plates 610 are fixed on one of the connecting plates 420, which faces the coolant tank 200. A connecting piece 620 is provided on the support plate 610. A retaining hole 510 is provided on the cover shell 500. The cover shell 500 is fixed to the connecting piece 620 by fasteners. Specifically, a connecting hole 621 is provided on the connecting piece 620. The fastener passes through the retaining hole 510 and is fixed in the connecting hole 621, thereby realizing the fixing operation of the cover shell 500.

[0041] In one embodiment, the upper end of the support 600 is provided with a locking hole (not shown), and the coolant tank 200 is fixed to the support 600 by a locking member; specifically, the lower end of the coolant tank 200 is provided with a support block 250, and the support block 250 is provided with a support hole 251. The locking member 440 passes through the locking hole and is fixed in the support hole 251, thereby realizing the fixing operation between the coolant tank 200 and the support 600.

[0042] In one embodiment, a return pipe 304 is provided on one side of the coolant tank 200, and the return pipe 304 is connected to the cooling water channel inside the diesel engine body 100; if the coolant in the cooling system carries air bubbles, the air bubbles will enter the coolant tank 200 through the return pipe 304.

[0043] In summary, this utility model provides a diesel engine cooling device by providing an exhaust pipe 303 on one side of the coolant tank 200 and a receiving tube 120 on the side of the diesel engine body 100 facing the coolant tank 200. One end of the exhaust pipe 303 is connected to one end of the receiving tube 120, and the other end of the receiving tube 120 is provided with a plug 121 to expel air from the receiving tube 120 or to manually seal one end of the receiving tube 120 to prevent coolant from flowing out. This significantly increases the coolant storage in the coolant tank 200 compared to before the exhaust pipe was installed, effectively ensuring a stable supply of coolant to the coolant tank 200. With a sufficient supply of coolant, more coolant flows into the cooling channels of the diesel engine body 100, ensuring the heat dissipation quality of the diesel engine body 100 and thus effectively improving the service life of the diesel engine.

[0044] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A diesel engine cooling device, characterized in that: The system includes a diesel engine body and a coolant tank. The diesel engine body is equipped with a thermostat assembly. The coolant tank is connected to the thermostat assembly via a first pipe and is used to store external coolant. The coolant tank is connected to the diesel engine body via a second pipe. An exhaust pipe is provided on one side of the coolant tank. A receiving pipe is provided on the side of the diesel engine body facing the coolant tank. One end of the exhaust pipe is connected to one end of the receiving pipe, and a plug is provided at the other end of the receiving pipe.

2. The diesel engine cooling device according to claim 1, characterized in that: The receiving tube is placed on one side of the thermostat assembly. The receiving tube includes an integrally formed connecting tube and an exhaust tube. One end of the exhaust pipe is connected to the connecting tube, and the plug is disposed at the end of the exhaust tube.

3. The diesel engine cooling device according to claim 2, characterized in that: The connecting pipe is set at an angle downwards, and the air outlet pipe is set horizontally.

4. The diesel engine cooling device according to claim 1, characterized in that: The coolant tank has a rectangular structure, and a vent is provided on one side of the coolant tank. The vent pipe is connected to the vent, and the vent is located at the upper end of the coolant tank.

5. A diesel engine cooling device according to claim 1, characterized in that: One end of the second pipe is located at the bottom end of the coolant tank.

6. A diesel engine cooling device according to claim 1, characterized in that: The upper end of the coolant tank is provided with an inlet valve, through which the coolant enters the coolant tank. An inlet pipe is provided on one side of the inlet valve.

7. A diesel engine cooling device according to claim 1, characterized in that: The diesel engine cooling device also includes a base, which includes four legs and a connecting plate connecting the four legs. Each of the four legs has a locking block at its upper end. The diesel engine body has L-shaped connecting blocks at its four corners. The connecting blocks are fixed to the locking blocks by fasteners.

8. A diesel engine cooling device according to claim 7, characterized in that: A drive wheel assembly is provided on one side of the diesel engine body for connecting a cooling fan, and a cover housing is provided on one side of the base.

9. A diesel engine cooling device according to claim 8, characterized in that: An L-shaped support is provided on one side of the base. The support consists of two L-shaped support plates, both of which are fixed on one of the connecting plates. The connecting plate faces the coolant tank. A connecting piece is provided on the support plate. A retaining hole is provided on the cover shell. The cover shell is fixed on the connecting piece by fasteners.

10. A diesel engine cooling device according to claim 9, characterized in that: The upper end of the support has a locking hole, and the coolant tank is fixed to the support by a locking member; the lower end of the coolant tank is provided with a support block, and the support block has a support hole, and the locking member passes through the locking hole and is fixed in the support hole.

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