A fuel dispenser vapor recovery device

The design of the fuel dispenser's vapor recovery device solves the problem of fuel vapor loss during vehicle refueling, achieving efficient fuel vapor recovery and convenient maintenance, while reducing environmental pollution and resource waste.

CN224548078UActive Publication Date: 2026-07-24LIPAI ENERGY TECH (ZHENGZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIPAI ENERGY TECH (ZHENGZHOU) CO LTD
Filing Date
2025-09-04
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing fuel dispenser vapor recovery devices suffer significant vapor loss during vehicle refueling, leading to environmental pollution and resource waste, and are also inconvenient to maintain.

Method used

A fuel dispenser vapor recovery device was designed, including a fuel nozzle, a fixed cover, an air pipe, a check valve, a vapor recovery pump, and an installation box. The fuel nozzle is sealed by the fixed cover, and the fuel vapor is introduced into the main vapor recovery pipeline through the air pipe. The fuel vapor is then recovered to the fuel storage tank at the gas station using a fuel vapor filter and a vapor recovery pump. The external design of the installation box facilitates maintenance.

Benefits of technology

It effectively reduces the loss of oil and gas during refueling, improves resource utilization, and facilitates the maintenance and operation of the recovery device.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224548078U_ABST
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Abstract

The utility model relates to the technical field of oiling machine discloses an oiling machine oil gas recovery device, including machine body and oiling gun, the left side of machine body is provided with oil pipe no.
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Description

Technical Field

[0001] This utility model relates to the field of fuel dispenser technology, specifically to a fuel dispenser vapor recovery device. Background Technology

[0002] A fuel dispenser is a machine used for refueling. A fuel dispenser vapor recovery device is an environmentally friendly device installed inside the dispenser to reduce the evaporation emissions of fuel at gas stations. It collects and recovers vapors in a closed system, reducing environmental pollution and improving resource utilization. However, in actual use, a significant amount of vapors from the fuel pump overflows from the nozzle, resulting in waste and air pollution at the dispenser location. This system is also inconvenient for collecting the vapors emitted during refueling.

[0003] Now, a new type of fuel dispenser vapor recovery device is proposed to address the above-mentioned shortcomings. Utility Model Content

[0004] The purpose of this utility model is to provide a fuel dispenser vapor recovery device to solve the problem mentioned in the background art of the inconvenience of collecting the vapor emitted during vehicle refueling.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fuel dispenser vapor recovery device, comprising a body and a fuel nozzle. An oil pipe is provided on the left side of the body, and a fuel nozzle is installed on the left side of the oil pipe. A fixing cover is fixed to the left side of the fuel nozzle. An air pipe is fixed to the top right side of the fixing cover, and an air pipe is provided to the right side of the air pipe. A check valve is installed between the air pipe and the air pipe. An vapor recovery pump is fixed to the bottom left side of the body, and an air pipe is fixed to the left side of the bottom of the vapor recovery pump. An air pipe is provided to the top of the air pipe, and a proportional valve is installed between the air pipe and the air pipe. The left side of the air pipe penetrates the interior of the left side of the body, and an air pipe is provided to the top of the air pipe. An oil vapor filter is installed between the air pipe and the air pipe. A main oil pipe is provided to the right side of the body.

[0006] As a further technical solution of this utility model, the top end of the second air tube is fixedly connected to the bottom end of the third air tube, the first air tube is connected to the inside of the fixed cover, the first air tube is connected to the inside of the second air tube through a check valve, and the second air tube is connected to the inside of the third air tube.

[0007] As a further technical solution of this utility model, the second air tube is fixed to the first oil tube by a strap.

[0008] As a further technical solution of this utility model, an installation box is fixedly installed on the top of the left side of the machine body, and a door is provided at the front end of the installation box. A reserved opening is provided inside the bottom end of the installation box. The left side of the fourth air pipe passes through the interior of the right side of the installation box. A fixing bracket is fixed at the top and bottom of the front left side of the installation box. A fixing foot is fixed at the top and bottom of the left side of the door. The fixing foot is hinged to the fixing bracket. A viewing window is fixed inside the front end of the door. A locking rod is provided at the top and bottom of the right side of the front end of the door. A connection hole is provided at the top and bottom of the right side of the front end of the installation box. A handle is fixed at the bottom of the front end of the door. The second air pipe and the first oil pipe pass through the interior of the reserved opening. The left side of the main oil pipe passes through the interior of the left side of the machine body and the interior of the right side of the installation box.

[0009] As a further technical solution of this utility model, the locking rod is provided with external threads on its exterior, and the rear end of the locking rod penetrates the interior of the door and is threaded into the connecting hole.

[0010] As a further technical solution of this utility model, an oil pipe two is provided at the top end of the first oil pipe, a breakaway valve is installed between the first oil pipe and the second oil pipe, an oil pump is provided on the right side of the body, and an oil suction pipe is installed and fixed at the input end of the oil pump, an oil pipe three is installed and fixed at the output end of the oil pump, a flow meter is installed and fixed between the third oil pipe and the main oil pipe, a control board is provided on the left side of the body, a control computer is provided on the right side of the body, an oil-gas separation valve is installed between the second oil pipe and the main oil pipe, the left side of the third gas pipe is fixedly connected to the oil-gas separation valve, and a main gas pipe is installed and fixed on the right side of the bottom end of the oil-gas recovery pump.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up a fuel nozzle, a fixed cover, an air pipe one, a check valve, an air pipe two, an oil pipe one, and an air pipe three, when refueling a vehicle with the fuel nozzle, after inserting the left side of the fuel nozzle into the vehicle's fuel inlet, the fixed cover can simultaneously cover and seal the outside of the fuel inlet. The oil vapor discharged from the fuel tank during refueling can be directly collected by the fixed cover and introduced into the air pipe two through the air pipe one. Then, it is concentrated and introduced into the main oil vapor recovery pipe inside the fuel dispenser for recovery, reducing the loss of oil vapor during the refueling process.

[0012] By incorporating an organic body, a reserved opening, a mounting box, a box door, a fixing bracket, fixing feet, a viewing window, a locking rod, a handle, and a connecting hole, the vapor recovery device on the fuel dispenser, when in use, guides the recovered vapor into the gas pipe three, filters it through the vapor filter, and then enters the gas pipe four. Finally, the vapor recovery pump guides it back to the underground fuel storage tank of the gas station through the main gas pipe. When maintaining the internal filter components of the vapor recovery device, an external mounting box is used. By flipping the box door to the left at the front of the mounting box, the filter components can be exposed, facilitating convenient maintenance of the recovery device components from the outside of the fuel dispenser. Attached Figure Description

[0013] Figure 1 This is a frontal cross-sectional view of the present invention.

[0014] Figure 2 This is a front view structural diagram of the mounting box of this utility model;

[0015] Figure 3 This is a top view of the mounting box of this utility model;

[0016] Figure 4 This is a partial structural diagram of the refueling nozzle of this utility model.

[0017] In the diagram: 1. Main body; 2. Oil nozzle; 3. Fixing cover; 4. Air pipe 1; 5. Check valve; 6. Air pipe 2; 7. Oil pipe 1; 8. Reserved port; 9. Mounting box; 10. Breakaway valve; 11. Oil pipe 2; 12. Oil-gas separator valve; 13. Box door; 14. Main oil pipe; 15. Air pipe 3; 16. Oil-gas filter; 17. Air pipe 4; 18. Control computer; 19. Control board; 20. Proportional valve; 21. Air pipe 5; 22. Oil-gas recovery pump; 23. Main air pipe; 24. Oil extraction pipe; 25. Oil pump; 26. Flow meter; 27. Fixing bracket; 28. Fixing foot; 29. ​​Viewing window; 30. Locking rod; 31. Handle; 32. Connection hole; 33. Oil pipe 3. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4This utility model provides an embodiment: a fuel dispenser vapor recovery device, including a body 1 and a fuel nozzle 2. An oil pipe 7 is provided on the left side of the body 1, and the fuel nozzle 2 is installed on the left side of the oil pipe 7. A fixing cover 3 is fixed on the left side of the fuel nozzle 2. An air pipe 4 is fixed at the top right side of the fixing cover 3, and an air pipe 6 is provided on the right side of the air pipe 4. A check valve 5 is installed between the air pipe 4 and the air pipe 6. An oil vapor recovery pump 22 is installed and fixed at the bottom left side of the body 1. An air pipe 5 21 is installed and fixed on the left side of the bottom of the oil vapor recovery pump 22. An air pipe 4 17 is provided at the top of the air pipe 5 21. A proportional valve 20 is installed between the air pipe 4 17 and the air pipe 5 21. The left side of the air pipe 4 17 penetrates the interior of the left side of the body 1. An air pipe 3 15 is provided at the top of the air pipe 4 17. An oil vapor filter 16 is installed between the air pipe 3 15 and the air pipe 4 17. A main oil pipe 14 is provided on the right side of the body 1.

[0020] The top end of the second air tube 6 is fixedly connected to the bottom end of the third air tube 15. The first air tube 4 is connected to the inside of the fixed cover 3. The first air tube 4 is connected to the inside of the second air tube 6 through the check valve 5. The second air tube 6 is connected to the inside of the third air tube 15. The second air tube 6 is fixed to the first oil tube 7 through a strap.

[0021] Specifically, such as Figure 1 As shown, when refueling a vehicle using the fuel nozzle 2, after inserting the left side of the fuel nozzle 2 into the vehicle's fuel inlet, the fixing cover 3 can simultaneously cover and seal the outside of the fuel inlet. The oil vapor discharged from the fuel tank during refueling can be directly collected by the fixing cover 3 and introduced into the air pipe 6 through the air pipe 4. Then, the air pipe 6 is concentrated and introduced into the main oil vapor recovery pipe inside the fuel dispenser for recovery.

[0022] A mounting box 9 is fixedly installed on the top left side of the body 1, and a door 13 is provided at the front end of the mounting box 9. A reserved opening 8 is provided inside the bottom end of the mounting box 9. The left side of the air pipe 17 passes through the inside of the right side of the mounting box 9. A fixing bracket 27 is fixed at the top and bottom of the front left side of the mounting box 9. A fixing foot 28 is fixed at the top and bottom of the left side of the door 13. The fixing foot 28 is hinged to the fixing bracket 27. A viewing window 29 is fixed inside the front end of the door 13. A locking rod 30 is provided at the top and bottom of the right side of the front end of the door 13. A connection hole 32 is provided at the top and bottom of the right side of the front end of the mounting box 9. A handle 31 is fixed at the bottom of the front end of the door 13. Air pipe 6 and oil pipe 7 pass through the inside of the reserved opening 8. The left side of the main oil pipe 14 passes through the inside of the left side of the body 1 and the inside of the right side of the mounting box 9.

[0023] The locking rod 30 has external threads on its exterior, and the rear end of the locking rod 30 passes through the interior of the door 13 and is threaded into the connecting hole 32.

[0024] Specifically, such as Figures 1-4 As shown, when maintaining the internal filter components of the oil and gas recovery device, an external installation box 9 is adopted. The filter components can be exposed by flipping the box door 13 to the left at the front end of the installation box 9, which facilitates convenient maintenance of the recovery device components from the outside of the fuel dispenser.

[0025] Oil pipe 11 is installed at the top of oil pipe 7. A breakaway valve 10 is installed between oil pipe 7 and oil pipe 11. Oil pump 25 is installed on the right side inside the machine body 1. Oil pump 24 is installed and fixed at the input end of oil pump 25. Oil pipe 33 is installed and fixed at the output end of oil pump 25. Flow meter 26 is installed and fixed between oil pipe 33 and main oil pipe 14. Control board 19 is installed on the left side inside the machine body 1. Control computer 18 is installed on the right side inside the machine body 1. Oil-gas separation valve 12 is installed between oil pipe 21 and main oil pipe 14. Gas pipe 315 is fixedly connected to oil-gas separation valve 12 on the left side. Main gas pipe 23 is installed and fixed on the right side of the bottom end of oil-gas recovery pump 22.

[0026] Furthermore, the proportional valve 20 and the oil and gas recovery pump 22 are electrically connected to the control board 19, and the electrical connection relationship and control method between them are known technologies, so they will not be described in detail here.

[0027] Furthermore, the flow meter 26 and the oil pump 25 are electrically connected to the control computer 18. The electrical connection relationship and control method between them are known technologies, so they will not be described in detail here.

[0028] Working principle: When refueling a vehicle using the fuel nozzle 2, the left side of the fuel nozzle 2 is inserted into the vehicle's fuel filler neck, and the fixing cover 3 simultaneously covers and seals the outside of the filler neck. The fuel vapors emitted from inside the fuel tank during refueling are directly collected by the fixing cover 3 and guided through air pipe 4 to air pipe 6. From there, air pipe 6 guides the vapors into the main vapor recovery pipe inside the fuel dispenser for recovery. The recovered vapors are then guided into air pipe 3 15, filtered by the vapor filter 16, and enter air pipe 4 17. Finally, the vapor recovery pump 22 guides the vapors back to the underground fuel storage tank at the gas station via the main air pipe 23. For maintenance of the internal filter components of the vapor recovery device, an external mounting box 9 is used. The filter components are exposed by flipping the front door 13 of the mounting box 9 to the left, allowing for quick maintenance of the recovery device components from outside the fuel dispenser.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fuel dispenser vapor recovery device, comprising a body (1) and a fuel nozzle (2), characterized in that: An oil pipe (7) is provided on the left side of the body (1), and a refueling nozzle (2) is installed on the left side of the oil pipe (7). A fixing cover (3) is fixed on the left side of the outside of the refueling nozzle (2). An air pipe (4) is fixed at the top right side of the fixing cover (3), and an air pipe (6) is provided on the right side of the air pipe (4). A check valve (5) is installed between the air pipe (4) and the air pipe (6). An oil and gas recovery pump (22) is installed and fixed at the bottom left side of the body (1), and the bottom of the oil and gas recovery pump (22) is... A fifth air pipe (21) is fixedly installed on the left side of the end. A fourth air pipe (17) is provided at the top of the fifth air pipe (21). A proportional valve (20) is installed between the fourth air pipe (17) and the fifth air pipe (21). The left side of the fourth air pipe (17) penetrates the interior of the left side of the machine body (1). A third air pipe (15) is provided at the top of the fourth air pipe (17). An oil-gas filter (16) is installed between the third air pipe (15) and the fourth air pipe (17). A main oil pipe (14) is provided on the right side inside the machine body (1).

2. The fuel dispenser vapor recovery device according to claim 1, characterized in that: The top end of the second trachea (6) is fixedly connected to the bottom end of the third trachea (15). The first trachea (4) is connected to the inside of the fixed cover (3). The first trachea (4) is connected to the inside of the second trachea (6) through the check valve (5). The second trachea (6) is connected to the inside of the third trachea (15).

3. The fuel dispenser vapor recovery device according to claim 2, characterized in that: The second air tube (6) is fixed to the first oil tube (7) by a strap.

4. The fuel dispenser vapor recovery device according to claim 1, characterized in that: A mounting box (9) is fixedly installed on the top left side of the body (1), and a door (13) is provided at the front end of the mounting box (9). A reserved opening (8) is provided inside the bottom end of the mounting box (9). The left side of the air pipe (17) passes through the inside of the right side of the mounting box (9). A fixing bracket (27) is fixed at the top and bottom of the front left side of the mounting box (9). A fixing foot (28) is fixed at the top and bottom of the left side of the door (13). The fixing foot (28) is hinged to the fixing bracket (27). The front end of the box door (13) is fixed with a viewing window (29). The top and bottom of the right side of the front end of the box door (13) are respectively provided with locking rods (30). The top and bottom of the right side of the front end of the mounting box (9) are respectively provided with connecting holes (32). The bottom of the front end of the box door (13) is fixed with a handle (31). The second air pipe (6) and the first oil pipe (7) pass through the interior of the reserved opening (8). The left side of the main oil pipe (14) passes through the interior of the left side of the machine body (1) and the interior of the right side of the mounting box (9).

5. The fuel dispenser vapor recovery device according to claim 4, characterized in that: The locking rod (30) has an external thread on its exterior, and the rear end of the locking rod (30) passes through the interior of the door (13) and is threaded into the connecting hole (32).

6. The fuel dispenser vapor recovery device according to claim 1, characterized in that: Oil pipe 1 (7) is provided with oil pipe 2 (11) at the top end. A break-off valve (10) is installed between oil pipe 1 (7) and oil pipe 2 (11). An oil pump (25) is provided on the right side inside the machine body (1). An oil suction pipe (24) is installed and fixed at the input end of the oil pump (25). An oil pipe 3 (33) is installed and fixed at the output end of the oil pump (25). A flow meter (26) is installed and fixed between oil pipe 3 (33) and the main oil pipe (14). A control board (19) is provided on the left side inside the machine body (1). A control computer (18) is provided on the right side inside the machine body (1). An oil-gas separation valve (12) is installed between oil pipe 2 (11) and the main oil pipe (14). The left side of the gas pipe 3 (15) is fixedly connected to the oil-gas separation valve (12). A main gas pipe (23) is installed and fixed on the right side of the bottom end of the oil-gas recovery pump (22).