Small-sized electric control high-pressure oil pump
By designing structures such as pressure gauge interface, pressure regulation module and output shaft in high-pressure oil pump, the problems of insufficient pressure of existing high-pressure oil pumps and poor solenoid valves are solved, higher pressure and flow are achieved, and the integrity of the oil circuit is ensured.
Patent Information
- Application Number
- CN202421340718.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-13
AI Technical Summary
The existing high-pressure oil pumps have insufficient pressure and small overall flow, which affects the supply of fuel, and the spindle is prone to stuck, and the solenoid valve is not effective. When the burner stops, the oil cannot be completely disconnected.
A small electronically controlled high-pressure oil pump is designed, using a pressure gauge interface, pressure regulation module and output shaft structure, which increases the pressure of fuel through the gear set, and opens when the solenoid valve is powered on and closes when the oil circuit is disconnected to ensure the integrity of the oil circuit.
The pressure and flow rate of the high-pressure oil pump are increased to prevent the spindle from getting stuck, ensuring that the solenoid valve can disconnect the oil circuit in time when the burner is stopped, and improving the working efficiency and combustion efficiency of the combustion engine.
Smart Images
Figure CN222542626U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-pressure oil pumps, in particular to a small-sized electronically controlled high-pressure oil pump. Background Art
[0002] The working principle of the high-pressure oil pump is mainly divided into three processes: oil suction, compression, and oil pumping. It plays a key role in the combustion process and can significantly improve the working efficiency and combustion efficiency of the burner. The high-pressure oil pump is an important structural component of the oil circuit in the burner and hot air blower. The performance requirements of the high-pressure oil pump are high and it needs to be compatible with different fuels, such as light oil, kerosene and biofuel mixtures.
[0003] However, the existing high-pressure oil pump has insufficient pressure and a small overall flow rate, which affects the supply of fuel. The main shaft is easily stuck, and the solenoid valve is not effective. When the burner stops, the oil cannot be completely disconnected. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a small electrically controlled high-pressure oil pump, which solves the problems of insufficient pressure, small overall flow, affecting the supply of fuel, easy sticking of the main shaft, poor effect of the solenoid valve, and failure to completely disconnect the oil when the burner stops.
[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a small-sized electrically controlled high-pressure oil pump, comprising a pump body, a product outer shell is installed at the front end of the pump body, a mounting seat is provided at the upper end of the pump body, a filter is provided at the upper end of the product outer shell, an oil suction port and an oil return port are respectively provided at the left and right sides of the lower end of the pump body, a nozzle port is provided at the left end face of the pump body, a vacuum gauge interface is provided at the right end face of the pump body, the same vacuum gauge interface is provided at the side of the front end face of the product outer shell, a pressure gauge interface is provided at the front end face of the product outer shell above the vacuum gauge interface, a pressure regulating module is provided at the surface of the product outer shell on the left side of the vacuum gauge interface, an output shaft is installed at the rear end of the pump body, and a shaft sleeve shell is provided at the rear end of the pump body on the outside of the output shaft;
[0006] An oil outlet passage, an oil suction passage and an oil return passage are arranged between the pump body and the product outer shell.
[0007] Preferably, a gear set is disposed inside the pump body, the gear set is connected to the pressure gauge interface via an oil outlet passage, and the gear set is connected to the filter via an oil suction passage.
[0008] Preferably, a solenoid valve is provided on the mounting seat, the solenoid valve and the gear set are connected through an oil outlet passage, and the solenoid valve and the nozzle opening are connected through the oil outlet passage.
[0009] Preferably, the filter is connected to the vacuum gauge interface and the oil suction port through an oil suction passage.
[0010] Preferably, the pressure regulating module is provided with a valve and a screw, and the valve is movably connected via a spring and the screw.
[0011] Preferably, the pressure regulating module and the solenoid valve are connected via an oil outlet passage, and the pressure regulating module and the shaft sleeve housing are connected via an oil return passage.
[0012] Preferably, the oil return port and the pressure regulating module are connected via an oil return passage, and the oil return passage and the oil outlet passage are connected via a contraction section.
[0013] Beneficial Effects
[0014] The utility model provides a small electric-controlled high-pressure oil pump. Compared with the prior art, it has the following beneficial effects:
[0015] This small electronically controlled high-pressure oil pump is equipped with a pressure gauge interface, a pressure regulating module and an output shaft. The fuel is sucked in from the oil suction port and enters the gear group through the filter. The pressure begins to increase here. When the solenoid valve is energized, the solenoid valve will open and release the fuel to the nozzle mouth. The valve in the pressure regulating module can be adjusted by a screw to set different pressure values, which is convenient for adapting to different pressure requirements and ensuring the flow rate of the oil pump. At the same time, a separate solenoid valve must be installed on the nozzle pipeline. When the burner stops, the oil circuit can be disconnected in time, which improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0017] Figure 2 This is a schematic diagram of the filter and pump structure of the utility model;
[0018] Figure 3 This is a schematic diagram of the shaft sleeve shell structure of the utility model;
[0019] Figure 4 It is a side view structural schematic diagram of the utility model;
[0020] Figure 5 This is a schematic diagram of the bottom structure of the utility model;
[0021] Figure 6 It is a schematic diagram of the oil circuit structure of the utility model.
[0022] In the figure: 1. Pump body; 2. Product outer shell; 3. Mounting seat; 4. Filter; 5. Oil suction port; 6. Oil return port; 7. Nozzle port; 8. Vacuum gauge interface; 9. Pressure gauge interface; 10. Pressure regulating module; 101. Valve; 102. Screw; 11. Output shaft; 12. Shaft sleeve shell; 13. Oil outlet passage; 14. Oil suction passage; 15. Oil return passage. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-6 The utility model provides a technical solution: a small electric-controlled high-pressure oil pump, including a pump body 1, a product outer shell 2 is installed at the front end of the pump body 1, a mounting seat 3 is arranged at the upper end of the pump body 1, a filter 4 is arranged at the upper end of the product outer shell 2, an oil suction port 5 and an oil return port 6 are arranged on the left and right sides of the lower end of the pump body 1, a nozzle port 7 is arranged on the left end face of the pump body 1, a vacuum gauge interface 8 is arranged on the right end face of the pump body 1, the same vacuum gauge interface 8 is arranged on the side of the front end face of the product outer shell 2, and a pressure gauge interface 9 is arranged on the front end face of the product outer shell 2 above the vacuum gauge interface 8. The pump body 1 is provided with a gear set inside, the gear set is connected to the pressure gauge interface 9 through the oil outlet passage 13, the gear set is connected to the filter 4 through the oil suction passage 14, the surface of the product outer shell 2 is located on the left side of the vacuum gauge interface 8 and a pressure regulating module 10 is provided, the rear end of the pump body 1 is installed with an output shaft 11, the rear end of the pump body 1 is located on the outside of the output shaft 11 and a shaft sleeve shell 12 is provided, the fuel is sucked from the oil suction port 5, and enters the gear set through the filter 4, the pressure starts to increase here, and when the solenoid valve is energized, the solenoid valve will open and release the fuel to the nozzle port 7, and the nozzle port 7 will spray the fuel oil;
[0025] The pump body 1 and the product outer shell 2 are connected with the product outer shell 13, the oil suction passage 14 and the oil return passage 15. The mounting seat 3 is provided with a solenoid valve. The solenoid valve and the gear set are connected through the oil outlet passage 13. The solenoid valve and the nozzle port 7 are connected through the oil outlet passage 13. The filter 4 and the vacuum gauge interface 8 and the oil suction port 5 are connected through the oil suction passage 14. The oil return port 6 and the pressure regulating module 10 are connected through the oil return passage 15. The oil return passage 15 and the oil outlet passage 13 are connected through a contraction section. The overall oil route consists of the oil outlet passage 13, the oil suction passage 14 and the oil return passage 15. When the oil is discharged, the fuel increases the pressure through the gear set, and the pressure gauge interface 9 is connected to a pressure gauge to monitor the oil outlet pressure. When the oil circuit is disconnected, the solenoid valve is closed, and after the oil outlet passage 13 is disconnected, it is blocked by the pressure regulating module 10 and enters the shaft sleeve shell 12, thereby protecting the output shaft 11 and preventing the main shaft from getting stuck. At the same time, the oil outlet passage 13 and the oil return passage 15 are connected through a contraction section to facilitate the recovery of fuel when the end is opened, as well as the connection between the oil return passage 15 and the oil suction passage 14, to realize the oil circuit control of the single-tube and double-tube systems. In the double-tube system, the excess fuel will be led back to the oil return port 6 and the oil tank, while in the single-tube system, the oil return outlet is blocked, and the fuel flows back to the gear set internally.
[0026] The pressure regulating module 10 is provided with a valve 101 and a screw 102. The valve 101 is movably connected through a spring and the screw 102. The pressure regulating module 10 and the solenoid valve are connected through an oil outlet passage 13. The pressure regulating module 10 and the shaft sleeve shell 12 are connected through an oil return passage 15. The valve 101 in the pressure regulating module 10 can be adjusted through the screw 102 to set different pressure values, which is convenient for adapting to different pressure requirements and ensuring the flow rate of the high-pressure oil pump.
[0027] During operation, the fuel is sucked in from the oil suction port 5, enters the gear set through the filter 4, and the pressure begins to increase here. When the solenoid valve is energized, the solenoid valve will open and release the fuel to the nozzle port 7, and the nozzle port 7 will spray the fuel oil. The overall oil circuit consists of an oil outlet passage 13, an oil suction passage 14 and an oil return passage 15. When the oil is discharged, the fuel increases the pressure through the gear set, and the pressure gauge interface 9 is connected to a pressure gauge to monitor the oil outlet pressure. When the oil circuit is disconnected, the solenoid valve is closed, and after the oil outlet passage 13 is disconnected, it is blocked by the pressure regulating module 10 and enters the shaft sleeve shell 12 to achieve the protection of the output shaft 11. At the same time, the oil outlet passage 13 and the oil return passage 15 are connected through the contraction section, which is convenient for the recovery of fuel when the end is opened, and the connection between the oil return passage 15 and the oil suction passage 14, so as to realize the oil circuit control of the single-tube and double-tube systems. In the double-tube system, the excess fuel will be led back to the oil return port 6 and the oil tank, while in the single-tube system, the oil return outlet is blocked, and the fuel flows back to the gear set internally, and passes through the valve 101 in the pressure regulating module 10, which can be adjusted by the screw 102, so as to set different pressure values, which is convenient for adapting to different pressure requirements and ensuring the flow rate of the high-pressure oil pump.
[0028] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
Claims
1. A small electronically controlled high-pressure oil pump, comprising a pump body (1), characterized in that: The front end of the pump body (1) is provided with a product outer shell (2), the upper end of the pump body (1) is provided with a mounting seat (3), the upper end of the product outer shell (2) is provided with a filter (4), the left and right sides of the lower end of the pump body (1) are provided with an oil suction port (5) and an oil return port (6), respectively, the left end face of the pump body (1) is provided with a nozzle port (7), the right end face of the pump body (1) is provided with a vacuum gauge interface (8), the side of the front end face of the product outer shell (2) is provided with a similar vacuum gauge interface (8), the front end face of the product outer shell (2) is provided with a pressure gauge interface (9) above the vacuum gauge interface (8), the surface of the product outer shell (2) is provided with a pressure regulating module (10) on the left side of the vacuum gauge interface (8), the rear end of the pump body (1) is provided with an output shaft (11), and the rear end of the pump body (1) is provided with a shaft sleeve (12) outside the output shaft (11); An oil outlet passage (13), an oil suction passage (14) and an oil return passage (15) are provided between the pump body (1) and the product outer shell (2).
2. A small electronically controlled high-pressure oil pump according to claim 1, characterized in that: A gear set is arranged inside the pump body (1), the gear set is connected to the pressure gauge interface (9) via an oil outlet passage (13), and the gear set is connected to the filter (4) via an oil suction passage (14).
3. A small electronically controlled high-pressure oil pump according to claim 2, characterized in that: The mounting seat (3) is provided with an electromagnetic valve, the electromagnetic valve and the gear set are connected via an oil outlet passage (13), and the electromagnetic valve and the nozzle opening (7) are connected via the oil outlet passage (13).
4. A small electronically controlled high-pressure oil pump according to claim 3, characterized in that: The filter (4), the vacuum gauge interface (8) and the oil suction port (5) are connected via an oil suction passage (14).
5. A small electronically controlled high-pressure oil pump according to claim 1, characterized in that: The pressure regulating module (10) is provided with a valve (101) and a screw (102), and the valve (101) is movably connected via a spring and the screw (102).
6. A small electronically controlled high-pressure oil pump according to claim 1, characterized in that: The pressure regulating module (10) and the solenoid valve are connected via an oil outlet passage (13), and the pressure regulating module (10) and the shaft sleeve housing (12) are connected via an oil return passage (15).
7. A small electronically controlled high-pressure oil pump according to claim 1, characterized in that: The oil return port (6) and the pressure regulating module (10) are connected via an oil return passage (15), and the oil return passage (15) and the oil outlet passage (13) are connected via a contraction section.