Anti-freezing solution filling device for internal combustion engine

By designing an antifreeze filling device for internal combustion engines, the antifreeze filling is automatically controlled by liquid level changes, which solves the shutdown and safety risks brought about by traditional manual filling, and realizes automated and safe antifreeze replenishment.

CN223062523UActive Publication Date: 2025-07-04ZHEJIANG ZHENENG DEQING DISTRIBUTED ENERGY CO LTD
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Patent Information

Application Number
CN202421890456.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-06
Publication Date
2025-07-04
Estimated Expiration
2034-08-06

AI Technical Summary

Technical Problem

In the prior art, antifreeze filling requires manual operation, resulting in shutdown of the internal combustion engine and opening the safety door, which is cumbersome and has a high risk factor.

Method used

A kind of antifreeze filling device for internal combustion engines is designed, using a communicator level tube, a liquid supply tube and a liquid level adjustment auxiliary module, and automatically controlling the filling of antifreeze using liquid level changes, and automatic filling is achieved through arcuate baffles and elastic films to avoid manual intervention.

Benefits of technology

The automatic antifreeze filling is realized, the internal combustion engine does not need to be shut down and the safety door does not need to be opened, the operation is simple and the risk factor is low.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The upper end and the lower end of a communicating vessel liquid level pipe are communicated with the interior of an anti-freezing solution tank, a liquid supply pipe with the upper end and the lower end closed is arranged on the outer wall of the communicating vessel liquid level pipe in a covering mode, and a plurality of liquid inlet holes are longitudinally formed in the communicating vessel liquid level pipe corresponding to the liquid supply pipe. A liquid level adjusting auxiliary module is arranged on the inner wall of the communicating vessel liquid level pipe corresponding to the inner side of the liquid inlet hole, arc-shaped blocking pieces are arranged on the inner side of the liquid inlet hole, the outer arcs of the arc-shaped blocking pieces are consistent with the radian of the inner wall of the communicating vessel liquid level pipe, the multiple arc-shaped blocking pieces are longitudinally arranged through an elastic film, and the two ends of the elastic film are fixed to the inner wall of the communicating vessel liquid level pipe through elastic rubber strips. A liquid supply connector is arranged on the liquid supply pipe and communicated with an external anti-freezing liquid water pump. By arranging the liquid level adjusting auxiliary module, the communicating vessel liquid level pipe and the liquid supply pipe, anti-freezing liquid filling is automatic, an internal combustion engine does not need to be shut down during anti-freezing liquid filling, a safety door does not need to be opened, and manual participation is not needed; operation is simple, and danger coefficient is low.
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Description

Technical Field

[0001] The utility model relates to the technical field of internal combustion engines, and particularly relates to an antifreeze filling device for an internal combustion engine. Background Art

[0002] In the field of energy utilization and conversion, gas internal combustion generator sets, as a kind of efficient and environment-friendly power generation equipment, are widely used in multiple industries such as commerce, industry, agriculture and electric power. Such generator sets can make full use of clean energy such as natural gas to realize the efficient conversion and utilization of energy, and at the same time reduce environmental pollution. However, during the long-term operation of gas internal combustion generator sets, the maintenance of their cooling systems is particularly important, and the filling and replacement of antifreeze are the key links to ensure the stable operation of the generator sets.

[0003] The cooling system of a gas internal combustion generator set absorbs and takes away the heat generated by the engine by circulating antifreeze, so as to keep the engine operating within a suitable working temperature range. Antifreeze not only has a cooling effect, but also can prevent the cooling system from freezing in a low-temperature environment, protecting the generator set from freezing damage. Therefore, regular inspection and replacement of antifreeze are crucial for maintaining the healthy operation of gas internal combustion generator sets.

[0004] Traditional antifreeze filling methods often rely on manual operation and have many disadvantages. For example, when filling antifreeze, the operator needs to enter the safety door of the internal combustion unit and fill the antifreeze into the antifreeze filling pipeline connected to the antifreeze tank to supplement the antifreeze in the antifreeze tank, which involves steps such as shutting down the internal combustion engine and opening the safety door, with cumbersome operation and high risk. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to research an antifreeze filling device for an internal combustion engine, which can supplement the antifreeze in the antifreeze tank without manual participation, without opening the safety door, and without shutting down the internal combustion engine.

[0006] The technical solution of the utility model to solve the above technical problem is as follows:

[0007] An internal combustion engine antifreeze filling device includes a communicating vessel liquid level tube, a liquid supply tube, and a liquid level adjustment auxiliary module. A communicating vessel liquid level tube is vertically arranged outside an antifreeze tank that supplies antifreeze to the cooling system of the internal combustion engine pipeline. The upper and lower ends of the communicating vessel liquid level tube are communicated with the inside of the antifreeze tank. A liquid supply tube with closed upper and lower ends is sleeved on the outer wall of the communicating vessel liquid level tube. The communicating vessel liquid level tube is longitudinally provided with a plurality of liquid inlet holes corresponding to the liquid supply tube, so that the liquid supply tube is communicated with the communicating vessel liquid level tube through the liquid inlet holes; a liquid level adjustment auxiliary module is arranged on the inner wall of the communicating vessel liquid level tube corresponding to the inner side of the liquid inlet holes. The liquid level adjustment auxiliary module includes a plurality of arc-shaped baffles, an elastic film, and elastic rubber strips. Arc-shaped baffles are correspondingly arranged on the inner side of the liquid inlet holes. The outer arc of the arc-shaped baffles is consistent with the inner wall radian of the communicating vessel liquid level tube. The plurality of arc-shaped baffles are longitudinally arranged corresponding to the liquid inlet holes through the elastic film. Both ends of the elastic film are fixed on the inner wall of the communicating vessel liquid level tube through the elastic rubber strips. A liquid supply interface is arranged on the liquid supply tube, and the liquid supply interface is communicated with an antifreeze water pump provided with a servo flow controller in the internal combustion engine group.

[0008] The beneficial effects of the present utility model are as follows: When the antifreeze liquid level in the antifreeze tank drops, the liquid level in the communicating vessel liquid level tube also drops accordingly. The arc-shaped baffle on the upper part of the elastic film loses the hydraulic action of the antifreeze, disengages from the inner wall of the communicating vessel liquid level tube, and the arc-shaped baffle releases the blockage of the liquid inlet hole, enabling the communicating vessel liquid level tube to be communicated with the liquid supply tube through the liquid inlet hole. Part of the antifreeze in the liquid supply tube flows into the communicating vessel liquid level tube through the liquid inlet hole under the action of the pressure in the tube. At the same time, the external servo flow controller senses the flow change in the pipeline, starts the antifreeze water pump, and continuously pumps antifreeze into the liquid supply tube, and then injects the antifreeze into the antifreeze tank through the communicating vessel liquid level tube; when the antifreeze liquid level in the antifreeze tank rises and fills the communicating vessel liquid level tube, due to the hydraulic pressure of the coolant in the communicating vessel liquid level tube and the liquid flow tension, the arc-shaped baffle will cover the liquid inlet hole and block the liquid inlet hole, preventing the antifreeze in the liquid supply tube from entering the communicating vessel liquid level tube through the liquid inlet hole. When the servo flow valve controller senses no flow fluctuation in the liquid supply tube, it stops the antifreeze water pump; by setting the liquid level adjustment auxiliary module, the communicating vessel liquid level tube and the liquid supply tube, the antifreeze filling is automated. When filling the antifreeze, the internal combustion engine does not need to stop, the safety door does not need to be opened, and no manual participation is required; the operation is simple and the risk factor is low.

[0009] On the basis of the above technical solution, the present utility model can be further improved as follows.

[0010] Further, a plurality of liquid inlet holes are arranged at the same height of the communicating vessel liquid level tube.

[0011] Further, the arc-shaped baffle is a lightweight plastic sheet.

[0012] Further, the elastic film is a nanofiber film.

[0013] Further, the elastic rubber strip is a rubber strip. Brief Description of the Drawings

[0014] Figure 1 The following is a schematic structural diagram of an antifreeze filling device for an internal combustion engine according to the present utility model Figure One ;

[0015] Figure 2 The following is a schematic structural diagram of an antifreeze filling device for an internal combustion engine according to the present utility model Figure Two ;

[0016] Figure 3 The following is a schematic structural diagram of an antifreeze filling device for an internal combustion engine according to the present utility model Figure Three ;

[0017] Figure 4 The following is a schematic structural diagram of an antifreeze filling device for an internal combustion engine according to the present utility model Figure Four ;

[0018] Figure 5 The following is a schematic structural diagram of an antifreeze filling device for an internal combustion engine according to the present utility model Figure Five ;

[0019] Figure 6 The following is a schematic structural diagram of an antifreeze filling device for an internal combustion engine according to the present utility model Figure Six ;

[0020] Figure 7 The following is a schematic structural diagram of an antifreeze filling device for an internal combustion engine according to the present utility model Figure Seven ;

[0021] Figure 8 The following is a schematic structural diagram of an antifreeze filling device for an internal combustion engine according to the present utility model Figure Eight .

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Communicator liquid level tube; 11. Liquid inlet hole; 2. Liquid supply pipe; 21. Liquid supply interface; 3. Liquid level adjustment auxiliary module; 31. Arc-shaped baffle; 32. Elastic film; 33. Elastic rubber strip; 4. Antifreeze tank; 5. Internal combustion engine pipeline. Detailed Embodiment

[0024] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0025] As Figures 1 to 8As shown in the figure, Embodiment 1 of the utility model is an antifreeze filling device for an internal combustion engine, which includes a communicating vessel liquid level tube 1, a liquid supply tube 2 and a liquid level adjustment auxiliary module 3. An upright communicating vessel liquid level tube 1 is arranged outside an antifreeze tank 4 that supplies antifreeze to a cooling system of an internal combustion engine pipeline 5. The upper and lower ends of the communicating vessel liquid level tube 1 are communicated with the inside of the antifreeze tank 4. A liquid supply tube 2 with closed upper and lower ends is sleeved on the outer wall of the communicating vessel liquid level tube 1. The communicating vessel liquid level tube 1 is longitudinally provided with a plurality of liquid inlet holes 11 corresponding to the liquid supply tube 2, so that the liquid supply tube 2 is communicated with the communicating vessel liquid level tube 1 through the liquid inlet holes 11. A liquid level adjustment auxiliary module 3 is arranged on the inner wall of the communicating vessel liquid level tube 1 corresponding to the inside of the liquid inlet holes 11. The liquid level adjustment auxiliary module 3 includes a plurality of arc-shaped baffles 31, an elastic film 32 and an elastic rubber strip 33. Arc-shaped baffles 31 are correspondingly arranged inside the liquid inlet holes 11. The outer arc of the arc-shaped baffle 31 is consistent with the inner wall radian of the communicating vessel liquid level tube 1. A plurality of arc-shaped baffles 31 are longitudinally arranged corresponding to the liquid inlet holes 11 through the elastic film 32. Both ends of the elastic film 32 are fixed on the inner wall of the communicating vessel liquid level tube 1 through the elastic rubber strip 33. A liquid supply interface 21 is arranged on the liquid supply tube 2, and the liquid supply interface 21 is communicated with an antifreeze water pump provided with a servo flow controller in the internal combustion engine group.

[0026] When the liquid level of the antifreeze in the antifreeze tank 4 drops, the liquid level in the communicating vessel liquid level tube 1 also drops accordingly. The arc-shaped baffle 31 on the upper part of the elastic film 32 loses the hydraulic action of the antifreeze, separates from the inner wall of the communicating vessel liquid level tube 1, and the arc-shaped baffle 31 releases the blockage of the liquid inlet hole 11, so that the communicating vessel liquid level tube 1 is communicated with the liquid supply tube 2 through the liquid inlet hole 11. Under the action of the pressure in the tube, a part of the antifreeze in the liquid supply tube 2 flows into the communicating vessel liquid level tube 1 through the liquid inlet hole 11. At the same time, the external servo flow controller senses the flow change in the pipeline and starts the antifreeze water pump to continuously pump antifreeze into the liquid supply tube 2, and then injects the antifreeze into the antifreeze tank 4 through the communicating vessel liquid level tube 1; when the liquid level of the antifreeze in the antifreeze tank 4 rises and fills the communicating vessel liquid level tube 1, due to the hydraulic pressure of the coolant in the communicating vessel liquid level tube 1 and the liquid flow tension, the arc-shaped baffle 31 will cover the liquid inlet hole 11 to block the liquid inlet hole 11, so that the antifreeze in the liquid supply tube 2 cannot enter the communicating vessel liquid level tube 1 through the liquid inlet hole 11. When the servo flow valve controller senses no flow fluctuation in the liquid supply tube 2, it stops the antifreeze water pump; by setting the liquid level adjustment auxiliary module, the communicating vessel liquid level tube 1 and the liquid supply tube 2, the antifreeze filling is automated. When filling the antifreeze, the internal combustion engine does not need to stop, the safety door does not need to be opened, and no manual participation is required; the operation is simple and the risk factor is low.

[0027] Embodiment 2 of the utility model is an antifreeze filling device for an internal combustion engine. On the basis of Embodiment 1, a plurality of liquid inlet holes 11 are arranged at the same height in the communicating vessel liquid level tube 1. Arranging a plurality of liquid inlet holes 11 at the same height can evenly distribute the hydraulic pressure and avoid too large a flow rate of the antifreeze through a single liquid inlet hole 11.

[0028] Embodiment 3 of the utility model: An antifreeze filling device for an internal combustion engine. On the basis of Embodiment 1, the arc-shaped baffle 31 is a lightweight plastic sheet. Specifically, during implementation, the lightweight plastic sheet is a PVC plastic sheet. It has a small self-weight and can move under the action of the hydraulic pressure of the antifreeze.

[0029] Embodiment 4 of the utility model: An antifreeze filling device for an internal combustion engine. On the basis of Embodiment 1, the elastic film 32 is a nanofiber membrane. The nanofiber membrane is thin, has a large elasticity, and good durability.

[0030] Embodiment 5 of the utility model: An antifreeze filling device for an internal combustion engine. On the basis of any one of Embodiments 1 to 4, the elastic rubber strip 33 is a rubber strip. Rubber has a high modulus at a specified elongation, excellent tear resistance, and good wear resistance.

[0031] The above are only the preferred embodiments of the utility model and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model shall be included within the protection scope of the utility model.

Claims

1. An internal combustion engine antifreeze filling device, characterized in that, It includes a communicating vessel liquid level tube (1), a liquid supply tube (2) and a liquid level adjustment auxiliary module (3). The communicating vessel liquid level tube (1) is vertically arranged outside an antifreeze liquid tank (4) that supplies antifreeze liquid to a cooling system of an internal combustion engine pipeline (5). The upper and lower ends of the communicating vessel liquid level tube (1) are communicated with the inside of the antifreeze liquid tank (4). A liquid supply tube (2) with closed upper and lower ends is sleeved on the outer wall of the communicating vessel liquid level tube (1). A plurality of liquid inlet holes (11) are longitudinally formed in the communicating vessel liquid level tube (1) corresponding to the liquid supply tube (2), so that the liquid supply tube (2) is communicated with the communicating vessel liquid level tube (1) through the liquid inlet holes (11). A liquid level adjustment auxiliary module (3) is arranged on the inner wall of the communicating vessel liquid level tube (1) corresponding to the inner side of the liquid inlet holes (11). The liquid level adjustment auxiliary module (3) includes a plurality of arc-shaped baffles (31), an elastic film (32) and an elastic rubber strip (33). The arc-shaped baffles (31) are correspondingly arranged on the inner side of the liquid inlet holes (11). The outer arc of the arc-shaped baffle (31) is consistent with the inner wall radian of the communicating vessel liquid level tube (1). The plurality of arc-shaped baffles (31) are longitudinally arranged corresponding to the liquid inlet holes (11) through the elastic film (32). Both ends of the elastic film (32) are fixed on the inner wall of the communicating vessel liquid level tube (1) through the elastic rubber strip (33). A liquid supply interface (21) is arranged on the liquid supply tube (2), and the liquid supply interface (21) is communicated with an antifreeze liquid pump provided with a servo flow controller in an internal combustion engine unit.

2. The antifreeze filling device for an internal combustion engine according to claim 1, characterized in that, A plurality of the liquid inlet holes (11) are arranged at the same height of the communicating vessel liquid level tube (1).

3. The antifreeze filling device for an internal combustion engine according to claim 1, characterized in that, The arc-shaped baffle (31) is a lightweight plastic sheet.

4. The antifreeze filling device for an internal combustion engine according to claim 1, characterized in that, The elastic film (32) is a nanofiber film.

5. The antifreeze filling device for an internal combustion engine according to any one of claims 1 to 4, characterized in that, The elastic rubber strip (33) is a rubber strip.