Automatic fuel oil supply device for diesel generating set

By designing an automatic fuel replenishment device for diesel generator sets, which utilizes a liquid level sensor and an electric lever to drive the fuel nozzle, the problem of limited fuel tank capacity in diesel generator sets is solved, and automated, fast, and safe fuel replenishment and remote management are achieved.

CN223621706UActive Publication Date: 2025-12-02JIANGSU YOUKAI POWER TECH CO LTD
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Patent Information

Application Number
CN202423278263.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-02
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

The limited fuel tank capacity of existing diesel generator sets necessitates frequent manual refueling, increasing workload.

Method used

An automatic fuel replenishment device for diesel generator sets was designed, including components such as a skid mount, fuel pump, liquid level sensor, electric lever, fuel replenishment manifold, and fuel nozzle. The liquid level sensor monitors the fuel level in the tank and automatically controls the electric lever to drive the fuel nozzle into the fuel replenishment manifold to achieve automatic fuel replenishment. Safety is ensured through structures such as guide rods, return springs, and sealing blocks.

Benefits of technology

It enables automated, rapid, and safe fuel replenishment for diesel generator sets, reduces manual operation, improves work efficiency and safety, and achieves remote management and early warning through wireless communication devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of diesel generating set auxiliary equipment, in particular to an automatic fuel oil supply device of a diesel generating set. The automatic fuel oil supply device of the diesel generating set comprises a skid-mounted seat, and a diesel engine, a generator, an oil tank, an oil pump and a control box which are mounted on the skid-mounted seat, and channel steel is mounted on one side of the skid-mounted seat; the oil supplementing pipe is inserted into the oil tank, a first liquid level sensor is installed at the bottom end of the oil supplementing pipe and electrically connected with the control box, an oil supplementing manifold is obliquely arranged on one side of the oil supplementing pipe, and an oil inlet hole is formed in the end, extending into the oil supplementing pipe, of the oil supplementing manifold; and the electric rod is fixedly installed on the upper surface of the oil tank and electrically connected with the control box, an installation block is fixedly installed at the telescopic end of the electric rod, an oil gun pipe is detachably installed on the installation block, and the oil gun pipe is matched with the oil supplementing manifold in an inserted connection mode. The automatic fuel oil supply device of the diesel generating set has the advantages of being rapid and safe in oil supply response and convenient to manage on line.
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Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for diesel generator sets, and in particular to an automatic fuel replenishment device for diesel generator sets. Background Technology

[0002] A diesel generator set is a power supply device that uses a diesel engine as the prime mover to drive a synchronous generator to generate electricity. It consists of an engine (diesel engine), generator, control system, cooling system, fuel system, lubrication system, exhaust system, base, starting system, soundproof enclosure, and other components. Diesel generator sets are widely used in industrial production, commercial buildings, hospitals, schools, hotels, banks, postal and telecommunications services, military facilities, and other fields.

[0003] The fuel system is responsible for delivering diesel fuel to the diesel engine for combustion. It includes the fuel tank, fuel pump, fuel filter, etc. However, the fuel tank of the existing diesel engine is limited by the size of the entire unit, and its capacity is limited. Since diesel generator sets need to operate continuously, operators need to frequently refill the fuel tank with diesel fuel, which is cumbersome and increases the workload.

[0004] Therefore, it is necessary to provide a new automatic fuel replenishment device for diesel generator sets to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an automatic fuel replenishment device for diesel generator sets that offers rapid and safe refueling response and is easy to manage online.

[0006] The automatic fuel replenishment device for diesel generator sets provided by this utility model includes: a skid-mounted base, and a diesel engine, generator, fuel tank, fuel pump and control box installed on the skid-mounted base. The inlet end of the fuel pump is inserted into the fuel tank, the outlet end of the fuel pump is connected to the fuel inlet pipe of the diesel engine, and the fuel pump is electrically connected to the control box. A channel steel is installed on one side of the skid-mounted base.

[0007] An oil replenishment pipe is inserted into the oil tank, and a liquid level sensor is installed at the bottom end of the oil replenishment pipe. The liquid level sensor is electrically connected to the control box. An oil replenishment manifold is inclinedly arranged on one side of the oil replenishment pipe, and an oil inlet is opened at the end of the oil replenishment manifold that extends into the oil replenishment pipe.

[0008] An electric rod is fixedly installed on the upper surface of the oil tank and electrically connected to the control box. An installation block is fixedly installed on the telescopic end of the electric rod. An oil gun pipe is detachably installed on the installation block and is plugged into the oil replenishment manifold.

[0009] An insert plate is movably inserted into a channel steel, and an oil tank is installed on the insert plate. The bottom end of the oil tank is connected to the oil gun pipe through a conduit.

[0010] Preferably, a guide rod is installed inside the oil replenishment manifold, and a sealing block for sealing the oil inlet is slidably installed on the guide rod. The sealing block is slidably engaged with the oil replenishment manifold. A return spring is sleeved on the guide rod. One end of the return spring is fixedly connected to the sealing block, and the other end of the return spring is fixedly connected to the guide rod. Furthermore, a pin that is inserted into the oil gun tube is fixedly installed at the front end of the guide rod.

[0011] Preferably, a valve seat is installed inside the oil gun tube, the valve seat has an oil passage hole that engages with the ejector pin, a connecting spring is installed on the valve seat, a sliding plate is fixedly installed on the end of the connecting spring away from the valve seat, a valve core for sealing the oil passage hole is installed on the sliding plate, and the sliding plate has a through hole.

[0012] Preferably, locking casters are fixedly installed at the four corners of the bottom of the insert plate, and a handrail is installed on one side of the insert plate.

[0013] Preferably, an observation window is embedded on one side of the oil tank, a sealing cap is installed on the top of the oil tank, an inlet pipe is installed on the sealing cap, and an oil cap is threaded onto the inlet pipe.

[0014] Preferably, a battery and a microcontroller are installed on the sealing cover. The battery and the microcontroller are electrically connected, and the microcontroller is electrically connected to a light alarm and a second liquid level sensor. The light alarm is located on the sealing cover, and the second liquid level sensor is inserted into the bottom of the oil tank.

[0015] Preferably, the microcontroller is also electrically connected to a wireless communicator, and the wireless communicator is wirelessly connected to a host computer.

[0016] Compared with related technologies, the automatic fuel replenishment device for diesel generator sets provided by this utility model has the following advantages:

[0017] 1. This utility model provides an automatic fuel replenishment device for diesel generator sets. A fuel replenishment pipe is installed on the fuel tank. The fuel replenishment pipe monitors the diesel fuel in the fuel tank through a liquid level sensor. When fuel is low, a fuel replenishment manifold is installed. The fuel replenishment manifold is equipped with a guide rod, a return spring, a sealing block and a pin. When the electric rod drives the fuel gun to be inserted into the fuel replenishment manifold, the automatic fuel replenishment can be achieved by the cooperation of the valve seat, valve core, sliding plate and connecting spring. After fuel replenishment, the electric rod extends to achieve automatic disconnection, thereby improving the safety of automatic fuel replenishment.

[0018] 2. The slide plate is equipped with locking casters and a handle, which makes it easy to move the oil tank flexibly for refueling and replenishing. The oil tank is equipped with an observation window, a sealing cap, an inlet pipe, an oil cap, a battery, a microcontroller, a light alarm, a level sensor, and wireless communication, which facilitates the monitoring of the amount of diesel in the oil tank and allows for timely replenishment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a preferred embodiment of the automatic fuel replenishment device for diesel generator sets provided by this utility model.

[0020] Figure 2 A cross-sectional structural diagram showing an oil gun tube inserted inside the oil replenishment pipe provided by this utility model.

[0021] Figure 3 A schematic diagram of the structure of the oil tank provided by this utility model.

[0022] Figure 4 for Figure 1 A magnified view of part A shown.

[0023] The diagram is labeled as follows: 1. Skid-mounted base; 11. Diesel engine; 12. Generator; 13. Fuel tank; 14. Fuel pump; 15. Control box; 16. Channel steel; 2. Fuel replenishment pipe; 21. Level sensor one; 3. Fuel replenishment manifold; 301. Oil inlet; 31. Guide rod; 32. Return spring; 33. Sealing block; 34. Pin; 4. Electric rod; 41. Mounting block; 5. Fuel gun pipe; 51. Valve seat; 52. Valve core; 53. Slide plate; 54. Connecting spring; 501. Oil passage hole; 502. Through hole; 6. Insert plate; 61. Handrail; 62. Locking caster wheel; 7. Fuel tank; 71. Observation window; 72. Sealing cover; 73. Liquid inlet pipe; 74. Oil cap; 8. Battery; 9. Microcontroller; 91. Light alarm; 92. Level sensor two; 93. Wireless communicator. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] Please see Figures 1 to 4 This utility model provides an automatic fuel replenishment device for diesel generator sets, which includes:

[0027] The skid mount 1, and the diesel engine 11, generator 12, fuel tank 13, fuel pump 14 and control box 15 installed on the skid mount 1. The inlet end of the fuel pump 14 is inserted into the fuel tank 13, the outlet end of the fuel pump 14 is connected to the fuel inlet pipe of the diesel engine 11, and the fuel pump 14 is electrically connected to the control box 15. A channel steel 16 is installed on one side of the skid mount 1.

[0028] Oil replenishment pipe 2 is inserted into oil tank 13, and a liquid level sensor 21 is installed at the bottom end of oil replenishment pipe 2. The liquid level sensor 21 is electrically connected to control box 15. An oil replenishment manifold 3 is inclined on one side of oil replenishment pipe 2. An oil inlet hole 301 is opened at one end of oil replenishment manifold 3 that extends into oil replenishment pipe 2.

[0029] The electric rod 4 is fixedly installed on the upper surface of the oil tank 13 and electrically connected to the control box 15. The telescopic end of the electric rod 4 is fixedly installed with a mounting block 41. The mounting block 41 is detachably installed with an oil gun pipe 5, which is plugged into the oil replenishment manifold 3.

[0030] The insert plate 6 is movably inserted into the channel steel 16, and an oil tank 7 is installed on the insert plate 6. The bottom end of the oil tank 7 is connected to the oil gun pipe 5 through a conduit.

[0031] It should be noted that during use, the oil pump 14 pumps the diesel fuel in the oil tank 13 to the diesel engine 11, and then the diesel engine 11 drives the generator 12 to generate electricity. The oil supply pipe 2 monitors the oil level in the oil tank 13 in real time through the liquid level sensor 21. When the oil level in the oil tank 13 drops to the warning line, the control box 15 controls the electric lever 4 to drive the oil gun pipe 5 to insert into the oil supply manifold 3, so that the diesel fuel in the oil tank 7 can automatically flow into the oil tank 13 through the oil supply pipe 2 by gravity, realizing automatic oil supply. When the oil supply reaches the set oil level, the control electric lever 4 drives the oil gun pipe 5 to withdraw from the oil supply manifold 3, and the oil supply stops.

[0032] In the embodiments of this utility model, please refer to Figures 1 to 4 A guide rod 31 is installed inside the oil replenishment manifold 3. A sealing block 33 for sealing the oil inlet 301 is slidably installed on the guide rod 31. The sealing block 33 is slidably engaged with the oil replenishment manifold 3. A return spring 32 is sleeved on the guide rod 31. One end of the return spring 32 is fixedly connected to the sealing block 33, and the other end of the return spring 32 is fixedly connected to the guide rod 31. A pin 34 that is inserted into the oil gun tube 5 is fixedly installed at the front end of the guide rod 31.

[0033] A valve seat 51 is installed inside the oil gun tube 5. The valve seat 51 has an oil passage hole 501 that is inserted and matched with the ejector pin 34. A connecting spring 54 is installed on the valve seat 51. A slide plate 53 is fixedly installed on the end of the connecting spring 54 away from the valve seat 51. A valve core 52 for sealing the oil passage hole 501 is installed on the slide plate 53, and the slide plate 53 has a through hole 502.

[0034] It should be noted that after the fuel nozzle 5 is inserted into the fuel supply manifold 3, and the ejector pin 34 passes through the oil passage 501, it continues to move. The valve seat 51 pushes the sealing block 33 backward until it is pushed behind the oil inlet 301. The ejector pin 34 pushes the valve core 52 away from the oil passage 501. Then, the diesel fuel in the fuel tank 7 flows through the guide pipe, through the through hole 502 of the slide plate 53, through the oil passage 501, and then into the fuel supply manifold 3. Finally, it flows into the fuel supply manifold 3 through the oil inlet 301. In pipe 2, the oil flows into the oil tank 13 from the oil replenishment pipe 2 to complete the oil replenishment. After the oil replenishment is completed, the oil gun pipe 5 exits from the oil replenishment manifold 3. The reset spring 32 pushes the sealing block 33 back to the top of the oil inlet 301 to complete the sealing of the oil inlet 301. Then, the connecting spring 54 pulls the sliding plate 53 to slide in the oil gun pipe 5, driving the valve core 52 to be pressed back into the oil passage 501 to complete the sealing of the oil passage 501. This realizes the oil replenishment and gun retraction, improving the safety of automatic oil replenishment.

[0035] In this embodiment: after the front end of the ejector pin 34 passes through the oil passage hole 501, the diameter of its rear end rod is smaller than the diameter of the oil passage hole 501, so that after the ejector pin 34 pushes the valve core 52 open from the valve seat 51, diesel fuel can flow out from the oil passage hole 501.

[0036] In the embodiments of this utility model, please refer to Figures 1 to 4 Locking casters 62 are fixedly installed at the four corners of the bottom of the insert plate 6, and a handrail 61 is installed on one side of the insert plate 6.

[0037] An observation window 71 is installed on one side of the oil tank 7, and a sealing cover 72 is installed on the top of the oil tank 7. An inlet pipe 73 is installed on the sealing cover 72, and an oil cap 74 is threaded onto the inlet pipe 73.

[0038] It should be noted that: the oil level in the oil tank 7 can be observed through the observation window 71. When the oil level is low, push the slide plate 6 from the inside of the channel steel 16, and then use the handle 61 and the locking caster 62 to move the oil tank 7 to replenish oil. When replenishing oil tank 7, open the oil cap 74 and introduce diesel fuel into the oil tank 7 through the liquid inlet pipe 73, and then screw the oil cap 74 back in.

[0039] In the embodiments of this utility model, please refer to Figures 1 to 4 A battery 8 and a microcontroller 9 are installed on the sealing cover 72. The battery 8 and the microcontroller 9 are electrically connected, and the microcontroller 9 is electrically connected to a light alarm 91 and a liquid level sensor 92. The light alarm 91 is set on the sealing cover 72, and the liquid level sensor 92 is inserted into the bottom of the oil tank 7.

[0040] The microcontroller 9 is also electrically connected to a wireless communicator 93, which is wirelessly connected to a host computer.

[0041] It should be noted that: the diesel oil level in tank 7 can be further monitored in real time using level sensor 92, and the oil level information can be fed back to microcontroller 9. Then, it can be wirelessly connected to a host computer via wireless communicator 93 for remote management. When the oil level is low, the light alarm 91 will issue a warning to remind on-site personnel to replenish the oil in time.

[0042] The working principle of the automatic fuel replenishment device for diesel generator sets provided by this utility model is as follows:

[0043] In use, the oil pump 14 pumps the diesel fuel in the oil tank 13 to the diesel engine 11, and then the diesel engine 11 drives the generator 12 to generate electricity. The oil supply pipe 2 monitors the oil level in the oil tank 13 in real time through the liquid level sensor 21. When the oil level in the oil tank 13 drops to the warning line, the control box 15 controls the electric lever 4 to drive the oil gun pipe 5 to insert into the oil supply manifold 3, so that the diesel fuel in the oil tank 7 can automatically flow into the oil tank 13 through the oil supply pipe 2 by gravity, thus realizing automatic oil supply. When the oil supply reaches the set oil level, the control electric lever 4 drives the oil gun pipe 5 to withdraw from the oil supply manifold 3, and the oil supply stops.

[0044] Furthermore, after the fuel nozzle 5 is inserted into the fuel supply manifold 3, it continues to move until the ejector pin 34 passes through the oil passage 501. The valve seat 51 pushes the sealing block 33 backward until it is pushed behind the oil inlet 301. The ejector pin 34 pushes the valve core 52 away from the oil passage 501. Then, the diesel fuel in the fuel tank 7 flows through the guide pipe, through the through hole 502 of the slide plate 53, through the oil passage 501, and then into the fuel supply manifold 3. Finally, it flows into the fuel supply pipe 2 from the oil inlet 301 of the fuel supply manifold 3. In the middle, the oil flows into the oil tank 13 from the oil replenishment pipe 2 to complete the oil replenishment. After the oil replenishment is completed, the oil gun pipe 5 exits from the oil replenishment manifold 3. The reset spring 32 pushes the sealing block 33 back to the top of the oil inlet 301 to complete the sealing of the oil inlet 301. Then, the connecting spring 54 pulls the sliding plate 53 to slide in the oil gun pipe 5, driving the valve core 52 to be pressed back into the oil passage 501 to complete the sealing of the oil passage 501. This realizes the oil replenishment and gun retraction, improving the safety of automatic oil replenishment.

[0045] Furthermore, the oil level in the oil tank 7 can be observed through the observation window 71. When the oil level is low, the push plate 6 is pushed from the inside of the channel steel 16. Then, the oil tank 7 can be moved to replenish oil by using the handrail 61 and the locking caster 62. When replenishing oil, the oil cap 74 is opened to introduce diesel fuel into the oil tank 7 through the inlet pipe 73, and then the oil cap 74 is screwed back in. The oil level sensor 92 can also be used for real-time monitoring and the oil level information is fed back to the microcontroller 9. The system can then be wirelessly connected to the host computer via the wireless communicator 93 for remote management. When the oil level is low, the light alarm 91 will issue a warning to remind on-site personnel to replenish oil in time.

[0046] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automatic fuel replenishment device for a diesel generator set, comprising: A skid mount (1), and a diesel engine (11), a generator (12), a fuel tank (13), a fuel pump (14) and a control box (15) installed on the skid mount (1). The inlet end of the fuel pump (14) is inserted into the fuel tank (13), and the outlet end of the fuel pump (14) is connected to the fuel inlet pipe of the diesel engine (11). The fuel pump (14) is electrically connected to the control box (15). A channel steel (16) is installed on one side of the skid mount (1). Its characteristic is that it further includes: An oil replenishment pipe (2) is inserted into the oil tank (13), and a liquid level sensor (21) is installed at the bottom end of the oil replenishment pipe (2). The liquid level sensor (21) is electrically connected to the control box (15), and an oil replenishment manifold (3) is inclined on one side of the oil replenishment pipe (2). An oil inlet hole (301) is opened at one end of the oil replenishment manifold (3) that extends into the oil replenishment pipe (2). An electric rod (4) is fixedly installed on the upper surface of the oil tank (13) and electrically connected to the control box (15). An installation block (41) is fixedly installed on the telescopic end of the electric rod (4). An oil gun pipe (5) is detachably installed on the installation block (41). The oil gun pipe (5) is plugged into the oil replenishment manifold (3). The insert plate (6) is movably inserted into the channel steel (16), and an oil tank (7) is installed on the insert plate (6). The bottom end of the oil tank (7) is connected to the oil gun pipe (5) through a conduit.

2. The automatic fuel replenishment device for diesel generator sets according to claim 1, characterized in that, A guide rod (31) is installed inside the oil replenishment manifold (3). A sealing block (33) for sealing the oil inlet (301) is slidably installed on the guide rod (31). The sealing block (33) is slidably engaged with the oil replenishment manifold (3). A return spring (32) is sleeved on the guide rod (31). One end of the return spring (32) is fixedly connected to the sealing block (33), and the other end of the return spring (32) is fixedly connected to the guide rod (31). A pin (34) that is inserted into the oil gun tube (5) is fixedly installed at the front end of the guide rod (31).

3. The automatic fuel replenishment device for diesel generator sets according to claim 2, characterized in that, A valve seat (51) is installed inside the oil gun tube (5). The valve seat (51) has an oil passage hole (501) that is inserted and matched with the ejector pin (34). A connecting spring (54) is installed on the valve seat (51). A sliding plate (53) is fixedly installed on one end of the connecting spring (54) away from the valve seat (51). A valve core (52) for sealing the oil passage hole (501) is installed on the sliding plate (53), and the sliding plate (53) has a through hole (502).

4. The automatic fuel replenishment device for diesel generator sets according to claim 1, characterized in that, Locking casters (62) are fixedly installed at the four corners of the bottom of the insert plate (6), and a handrail (61) is installed on one side of the insert plate (6).

5. The automatic fuel replenishment device for diesel generator sets according to claim 1, characterized in that, An observation window (71) is embedded on one side of the oil tank (7), and a sealing cover (72) is installed on the top of the oil tank (7). An inlet pipe (73) is installed on the sealing cover (72), and an oil cap (74) is threaded onto the inlet pipe (73).

6. The automatic fuel replenishment device for diesel generator sets according to claim 5, characterized in that, A battery (8) and a microcontroller (9) are installed on the sealing cover (72). The battery (8) and the microcontroller (9) are electrically connected. The microcontroller (9) is electrically connected to a light alarm (91) and a liquid level sensor (92). The light alarm (91) is installed on the sealing cover (72), and the liquid level sensor (92) is inserted into the bottom of the oil tank (7).

7. The automatic fuel replenishment device for diesel generator sets according to claim 6, characterized in that, The microcontroller (9) is also electrically connected to a wireless communicator (93), which is wirelessly connected to a host computer.