A fuel filter device

CN224664709UActive Publication Date: 2026-08-21TELLHOW POWER TECH CO LTD
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Patent Information

Application Number
CN202522110594.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2026-08-21
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

[0003]然而,现有燃油过滤装置只设置了燃油进口和燃油出口,燃油过滤装置下方并未设置泄漏搜集装置,导致燃油过滤装置发生渗漏时,燃油将直接流到地面,污染环境,影响发电机组房整洁度,并且鉴于只设计了一个燃油进口,当燃油过滤装置故障又需临时应急启动发电机组时,将会导致供油系统为断路状态,机组无法运行的情况

Benefits of technology

在本实用新型提供的燃油过滤装置中,通过旁通管和至少两三通阀的设置,利用旁通管将进油管和出油管进行连通,并且通过一三通阀用于将进油管与旁通管连通,通过另一三通阀用于将出油管与旁通管连通,使得进油管的油液经分离器后流向出油管/进油管的油液流向出油管,也就是说,当分离器出现故障时,应急情况下可快速切换至旁通管路进行供油,进油管的油液将直接经过旁通管输入出油管,使得燃油不经过分离器过滤,直接通过旁通管流入到发动机组使用,通过该设置,能够解决现有技术中只设计了一个燃油进口,当燃油过滤装置故障又需临时应急启动发电机组时,将会导致供油系统为断路状态,机组无法运行的技术问题。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of fuel filter devices, it is related to generator set technical field, including the oil inlet pipe and oil outlet pipe for being communicated with the oil inlet and oil outlet of separator, bypass pipe for being communicated with the oil inlet pipe and oil outlet pipe, and at least two three-way valves, wherein, at least one three-way valve is used to be communicated with the oil inlet pipe and bypass pipe, at least another three-way valve is used to be communicated with the oil outlet pipe and bypass pipe, to be communicated by starting corresponding three-way valve, so that the oil liquid of oil inlet pipe flows to the oil liquid of oil outlet pipe after separator, by the setting, when separator fails, emergency situation can be switched to bypass pipeline to supply oil quickly, the oil liquid of oil inlet pipe will directly pass through bypass pipe and input oil outlet pipe, so that fuel directly flows into engine set use through bypass pipe, when fuel filter device fails and needs temporary emergency start generator set, the effect that unit can operate.
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Description

Technical Field

[0001] This utility model relates to the field of generator set technology, specifically a fuel filter device. Background Technology

[0002] Fuel filters play a crucial role in generator sets, ensuring fuel cleanliness, protecting core components, and improving operational reliability. They filter out harmful substances such as metal debris, gum, and carbon residue from the fuel, preventing them from entering precision components like high-pressure fuel pumps and injectors and causing abnormal wear. They also separate water and contaminants from the fuel, improving its purity.

[0003] However, the existing fuel filter only has a fuel inlet and a fuel outlet, and there is no leak collection device below the fuel filter. When the fuel filter leaks, the fuel will flow directly to the ground, polluting the environment and affecting the cleanliness of the generator room. Furthermore, since there is only one fuel inlet, when the fuel filter fails and the generator needs to be started temporarily, the fuel supply system will be disconnected, and the unit will not be able to operate. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a fuel filtration device to solve at least one technical problem in the background art.

[0005] The present invention provides a fuel filter device, including an inlet pipe and an outlet pipe for communicating with the inlet and outlet of a separator, a bypass pipe for communicating with the inlet pipe and the outlet pipe, and at least two three-way valves. Among them, at least one of the three-way valves is used to connect the oil inlet pipe to the bypass pipe, and at least another three-way valve is used to connect the oil outlet pipe to the bypass pipe, so that by activating the corresponding three-way valve, the oil in the oil inlet pipe flows to the oil outlet pipe after passing through the separator / the oil in the oil inlet pipe flows to the oil outlet pipe.

[0006] Furthermore, the fuel filter device includes a first three-way valve and a second three-way valve; The first three-way valve is used to connect the oil inlet pipe to the bypass pipe, and the second three-way valve is used to connect the oil outlet pipe to the bypass pipe.

[0007] Furthermore, the fuel filter device includes multiple separators, wherein the inlet and outlet of each separator are connected to the inlet pipe and the outlet pipe.

[0008] Furthermore, the fuel filter device also includes a support for supporting the separator.

[0009] Furthermore, the bracket includes a first support portion and a second support portion; The first support portion is used to support the separator.

[0010] Furthermore, the fuel filter device also includes an oil collection tray, the second support portion is used to support the oil collection tray, and the oil collection tray is directly below the separator.

[0011] Furthermore, the fuel filter device also includes a leak sensor, which is located inside the oil collection tray and is used to detect the oil in the oil collection tray.

[0012] Furthermore, the oil collection tray is equipped with an oil drain valve.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In the fuel filtration device provided by this utility model, the inlet and outlet pipes are connected by a bypass pipe and at least two three-way valves. One three-way valve connects the inlet pipe to the bypass pipe, and another three-way valve connects the outlet pipe to the bypass pipe. This allows the fuel in the inlet pipe to flow to the outlet pipe after passing through the separator, and the fuel in the inlet pipe to flow to the outlet pipe. In other words, when the separator fails, the bypass line can be quickly switched to supply fuel in an emergency. The fuel in the inlet pipe will directly enter the outlet pipe through the bypass pipe, so that the fuel does not pass through the separator for filtration and flows directly into the engine unit for use. This design solves the technical problem in the prior art where only one fuel inlet is designed. When the fuel filtration device fails and the generator set needs to be started temporarily, the fuel supply system will be disconnected, and the unit will not be able to operate. Attached Figure Description

[0014] Figure 1 This is a perspective view of a fuel filter device in one embodiment of the present invention; Figure 2 This is a side view of a fuel filter device in one embodiment of the present invention.

[0015] In the diagram: 100, separator; 200, oil inlet pipe; 300, oil outlet pipe; 400, bypass pipe; 500, first three-way valve; 600, second three-way valve; 700, bracket; 710, first support part; 720, second support part; 800, oil collection tray; 810, oil drain valve; 900, leakage sensor. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0017] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] Please see Figures 1-2 The image shows a fuel filter device according to one embodiment of the present invention, including an inlet pipe 200 and an outlet pipe 300 for communicating with the inlet and outlet of the separator 100, a bypass pipe 400 for communicating with the inlet pipe 200 and the outlet pipe 300, and at least two three-way valves. It should be noted that in some actual situations, the outlet pipe 300 is connected to a generator set for supplying fuel to the generator set to provide energy for the generator set to operate. Since the generator set is conventional prior art in this field, it will not be described in detail here.

[0020] To address the issue that existing fuel filter devices only have one fuel inlet, which could lead to a broken fuel supply system and prevent the generator set from operating when the fuel filter fails and a temporary emergency start is required, this example incorporates at least one three-way valve to connect the inlet pipe 200 to the bypass pipe 400, and at least another three-way valve to connect the outlet pipe 300 to the bypass pipe 400. By activating the corresponding three-way valve, the oil from the inlet pipe 200 flows through the separator 100 to the outlet pipe 300, and the oil from the inlet pipe 200 flows to the outlet pipe 300.

[0021] In other words, the inlet pipe 200 and the outlet pipe 300 are connected by a bypass pipe 400, and a three-way valve is used to connect the inlet pipe 200 to the bypass pipe 400, and another three-way valve is used to connect the outlet pipe 300 to the bypass pipe 400. This allows the oil in the inlet pipe 200 to flow to the outlet pipe 300 after passing through the separator 100, and the oil in the inlet pipe 200 to flow to the outlet pipe 300. That is to say, when the separator 100 fails, in an emergency, the oil supply can be quickly switched to the bypass pipe 400. The oil in the inlet pipe 200 will directly enter the outlet pipe 300 through the bypass pipe 400, so that the fuel does not pass through the separator 100 for filtration and flows directly into the engine unit through the bypass pipe 400. This setting can solve the technical problem in the existing technology where only one fuel inlet is designed. When the fuel filter fails and the generator set needs to be started temporarily, the fuel supply system will be in a broken state, and the unit will not be able to operate.

[0022] To further understand this case, in this example, the fuel filter device includes a first three-way valve 500 and a second three-way valve 600; wherein, the first three-way valve 500 is used to connect the fuel inlet pipe 200 to the bypass pipe 400, and the second three-way valve 600 is used to connect the fuel outlet pipe 300 to the bypass pipe 400.

[0023] Specifically, the first three-way valve 500 has three directions: A1, A2, and A3. Turning the handle allows either A1→A2 or A1→A3 to pass through. Similarly, the second three-way valve 600 has three directions: B1, B2, and B3. Turning the handle allows either B1→B2 or B1→B3 to pass through. During normal use, turning the handle of the first three-way valve 500 allows A1→A3 to pass through and A1→A2 to be disconnected. Likewise, turning the handle of the second three-way valve 600 allows B1→B3 to pass through and B1→B2 to be disconnected. In this way, fuel is properly filtered by the separator 100 and then flows into the engine through the second three-way valve 600 for use. When bypass pipe 400 is needed for fuel supply in an emergency, turn the handle of the first three-way valve 500 to make A1→A2 pass through and A1→A3 disconnect. Similarly, turn the handle of the second three-way valve 600 to make B1→B2 pass through and B1→B3 disconnect. In this way, the fuel does not pass through the separator 100 for filtration, but flows directly through bypass pipe 400 and then through the second three-way valve 600 to the engine for use.

[0024] It should be noted that in some preferred embodiments, the fuel filter device includes multiple separators 100, wherein the inlet and outlet of each separator 100 are connected to the inlet pipe 200 and the outlet pipe 300, that is, oil can be supplied to multiple separators 100 and the oil can be discharged from multiple separators 100 through one inlet pipe 200 and one outlet pipe 300.

[0025] Furthermore, the fuel filter device also includes a bracket 700, which is used to support the separator 100. The bracket 700 includes a first support portion 710 and a second support portion 720. The first support portion 710 is used to support the separator 100. Specifically, the bracket 700 has an L-shaped structure and a mounting plate is provided on its top to facilitate the installation and fixing of the separator 100.

[0026] In some preferred embodiments, the fuel filter device also includes an oil collection tray 800, a second support 720 for supporting the oil collection tray 800, and the oil collection tray 800 is directly below the separator 100. The oil collection tray 800 can collect leaked oil and prevent oil from polluting the ground.

[0027] In some other preferred embodiments, the fuel filter device further includes a leak sensor 900, which is disposed in the oil collection tray 800 and is used to detect the oil in the oil collection tray 800. The oil collection tray 800 is provided with a drain valve 810.

[0028] In practical implementation, the oil collection tray 800 has a U-shaped structure and is located directly below the separator 100. The oil collection tray 800 is fixed to the bracket 700 with bolts. A leak sensor 900 is installed in the bracket 700 within the groove of the oil collection tray 800. When the separator 100 leaks, the leak is collected by the oil collection tray 800, detected by the leak sensor 900, and a signal is sent to remotely trigger an alarm. A drain valve 810 is also located at the bottom of the oil collection tray 800. The drain valve 810 is normally closed. When a leak in the separator 100 requires centralized handling, the drain valve 810 is opened to collect the leaked fuel through another container, or the fuel is directly routed to a designated location via a pipeline through the drain valve.

[0029] In summary, the fuel filtration device according to an embodiment of this utility model has at least the following beneficial effects: In the fuel filtration device provided by this utility model, the inlet pipe 200 and the outlet pipe 300 are connected by a bypass pipe 400 and at least two three-way valves. One three-way valve connects the inlet pipe 200 to the bypass pipe 400, and another three-way valve connects the outlet pipe 300 to the bypass pipe 400. This allows the oil in the inlet pipe 200 to flow to the outlet pipe 300 after passing through the separator 100, and the oil in the inlet pipe 200 to flow to the outlet pipe 300. In other words, when the separator... In the event of a malfunction in separator 100, the fuel supply can be quickly switched to bypass pipe 400 in an emergency. The fuel in the inlet pipe 200 will directly enter and exit the fuel pipe 300 through the bypass pipe 400, so that the fuel does not pass through the separator 100 for filtration and flows directly into the engine unit through the bypass pipe 400. This setting can solve the technical problem in the existing technology where only one fuel inlet is designed. When the fuel filter device fails and the generator set needs to be started temporarily, the fuel supply system will be in a broken state, and the unit will not be able to operate.

[0030] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. 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 patent should be determined by the appended claims.

Claims

1. A fuel filter device, characterized in that, It includes an inlet pipe and an outlet pipe for communicating with the inlet and outlet of the separator, a bypass pipe for communicating with the inlet pipe and the outlet pipe, and at least two three-way valves; Among them, at least one of the three-way valves is used to connect the oil inlet pipe to the bypass pipe, and at least another three-way valve is used to connect the oil outlet pipe to the bypass pipe, so that by activating the corresponding three-way valve, the oil in the oil inlet pipe flows to the oil outlet pipe after passing through the separator / the oil in the oil inlet pipe flows to the oil outlet pipe.

2. The fuel filter device according to claim 1, characterized in that: The fuel filter device includes a first three-way valve and a second three-way valve. The first three-way valve is used to connect the oil inlet pipe to the bypass pipe, and the second three-way valve is used to connect the oil outlet pipe to the bypass pipe.

3. The fuel filter device according to claim 1, characterized in that: The fuel filter device includes multiple separators, wherein the inlet and outlet of each separator are connected to the inlet pipe and the outlet pipe.

4. The fuel filter device according to claim 1, characterized in that: The fuel filter also includes a support bracket for supporting the separator.

5. The fuel filter device according to claim 4, characterized in that: The bracket includes a first support portion and a second support portion; The first support portion is used to support the separator.

6. The fuel filter device according to claim 5, characterized in that: The fuel filter device further includes an oil collection tray, the second support portion is used to support the oil collection tray, and the oil collection tray is directly below the separator.

7. The fuel filter device according to claim 6, characterized in that: The fuel filter also includes a leak sensor located inside the oil collection tray, which is used to detect the oil in the oil collection tray.

8. The fuel filter device according to claim 6, characterized in that: The oil collection tray is equipped with an oil drain valve.