Active oil separator

Abstract

The utility model relates to an active oil separator which comprises a shell, a third cavity is formed in one side of the shell, a motor capable of being started in the low-speed state of an automobile is installed in the third cavity, the third cavity is communicated with a second cavity, and the motor is provided with a first flow guide plate through a fixing structure. A first flow guide groove for separating mixed gas is formed between the first flow guide plate and the motor, a third baffle and a fourth baffle are arranged in the shell, the third baffle and the fourth baffle form a fourth cavity for discharging waste gas and a fifth cavity for discharging oil supply, and the first flow guide groove is communicated with the fourth cavity and the fifth cavity. A motor in a third cavity rotates to fully separate mixed gas in a first flow guide groove through centrifugal force, due to different densities of oil and gas, separated gas flows into a fifth cavity along a first flow guide plate, and remaining waste gas is discharged through a fourth cavity, so that the purpose that the mixed gas flows into the fifth cavity along the first flow guide plate when the automobile is in a low-speed state is achieved. The oil separator can achieve the purpose of actively separating oil.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to an active oil separator. Background Art

[0002] The automobile oil separator, also known as the oil-gas separator, is an important part of the automobile engine system. Its main function is to separate the oil component in the crankcase exhaust gas and reduce the oil from the crankcase breathing port to the external environment. The oil separator can discharge the gas containing corrosive substances in time. At the same time, the oil separator helps to maintain the basic balance between the crankcase pressure and the atmospheric pressure, which can reduce the resistance and power loss when the piston moves downward, thereby improving the efficiency of the engine.

[0003] The publication number is: CN210738644U discloses an oil-gas separator, including a shell, an oil-gas inlet is provided on one side of the top of the shell, a first gas outlet is provided on the top of the shell, a first one-way valve is installed below the first gas outlet, a second gas outlet is provided at the bottom of the shell, a first cavity is provided above the shell, and a second one-way valve is provided below the first cavity; a second cavity is provided below the first cavity, and an exhaust valve is provided on the top of the second cavity; an oil-gas separation chamber is also provided in the shell, and the oil-gas separation chamber is located below the oil-gas inlet, and steam and oil are separated by centrifugal force, and the separation is complete.

[0004] The above-mentioned oil-gas separator has a better separation effect under high-speed conditions, but it cannot effectively separate a large amount of oil vapor when the vehicle is driving at a low speed. The vehicle can only effectively separate oil vapor when it is driving at a high speed. The failure of the oil separator to work effectively may cause oil vapor and incomplete combustion to cause excessive oil loss. Therefore, this technology still has room for improvement. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide an active oil separator in view of the deficiencies of the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an active oil separator, comprising a shell, a first baffle, a second baffle, and a bottom plate; the first baffle and the second baffle are arranged in a box body to form a first cavity, a second cavity, and an air intake cavity; the first cavity, the second cavity, and the air intake cavity are communicated with each other; the bottom plate covers the first cavity, the second cavity, and the air intake cavity as a shield; and is characterized in that: a third cavity is provided on one side of the shell; a motor capable of starting at a low speed of a car is installed in the third cavity; the third cavity is communicated with the second cavity; the motor is provided with a first guide plate by setting a fixed structure; a first guide groove for separating mixed gases is formed between the first guide plate and the motor; a third baffle and a fourth baffle are provided in the shell; the third baffle and the fourth baffle form a fourth cavity for waste discharge and a fifth cavity for oil discharge; the first guide groove is communicated with the fourth cavity and the fifth cavity.

[0007] By adopting the above technical solution, the motor is started when the car is at a low speed, and the mixed gas enters the first cavity and the second cavity through the air intake cavity for secondary separation, and the water in the mixed gas is filtered out. When the remaining mixture enters the third cavity, the motor rotates and uses centrifugal force to fully separate the mixed gas in the first guide groove. Due to the different densities of oil and gas, the separated gas flows into the fifth cavity along the first guide plate, and the remaining waste is discharged through the fourth cavity. In this way, the oil separator can actively separate the oil when the car is at a low speed without waiting until the car reaches a high-speed driving state, which can improve the separation efficiency and greatly improve the effect of the oil separator.

[0008] The above-mentioned active oil separator can be further configured as follows: the bottom plate extends to the fifth cavity as a cover, the bottom plate is provided with an air inlet at the air inlet cavity, the bottom plate is provided with a drainage hole for the separated water to be discharged at the second cavity, and the bottom plate is provided with an oil outlet hole at the fifth cavity, and a check valve is installed in the oil outlet hole to ensure that the separated oil can only flow out in one direction.

[0009] By adopting the above technical scheme, when the mixed gas enters the first cavity and the second cavity, the water in the mixed gas is separated and deposited in the first cavity. Since the first cavity is connected with the second cavity, a certain amount of deposited water will flow into the second cavity, and the separated water will be discharged through the drainage hole located in the second cavity of the bottom plate. The mixed gas that is not fully separated will enter the third cavity and pass through the motor to perform sufficient oil and gas separation in the first guide groove. The gas is directly discharged through the fourth cavity, and the oil flows into the fifth cavity through the internal air pressure and flows out from the oil outlet hole set in the fifth cavity at the bottom plate. Since a check valve is set in the oil outlet hole, the separated oil can only flow out in one direction, thereby avoiding oil reflux and making the product more stable.

[0010] The above-mentioned active oil separator may be further configured as follows: the fixed structure includes a plug-in block arranged in the third cavity, and one side of the first guide plate is provided with a slot plugged into the plug-in block.

[0011] By adopting the above technical solution, the plug-in fixing structure makes the assembly of the motor and the guide plate easier and faster, without the need for complicated tools and techniques, thereby greatly improving the assembly efficiency, providing good mechanical support, enhancing the structural stability of the entire device, and ensuring reliability in long-term operation. The plug-in fixing structure has a certain adjustment space and can adapt to the needs of fine adjustment of the guide plate position under different working conditions, thereby enhancing the applicability and flexibility of the equipment.

[0012] The above-mentioned active oil separator can be further configured as follows: the first baffle is vertically provided with a first notch connecting the air intake cavity and the first cavity, a guide tube extending to the first cavity is provided at the first notch, the second baffle is provided with a second notch connecting the first cavity and the second cavity, a third notch communicating with the third cavity is provided at the bottom of the second cavity, a fourth notch communicating with the third cavity is provided in the fourth cavity, a fifth notch connecting the third cavity and the fifth cavity is provided at the bottom of the fifth cavity, and the fourth notch is higher than the fifth notch.

[0013] By adopting the above technical scheme, the mixed gas is introduced into the first cavity through the first gap set in the air intake cavity and the guide tube. When the mixed gas has been fully in contact with the second baffle, the water in the mixed gas is separated. When the water level is higher than the second gap, it flows into the second cavity. The separated water flows out through the water outlet of the bottom plate. The mixed gas that is not fully separated enters the third cavity through the third gap for full separation. Since the density of the gas is relatively small, the waste is discharged through the fourth gap set in the fourth cavity. The separated oil flows into the fifth cavity through the fifth gap and is discharged through the oil outlet hole set in the bottom plate.

[0014] The above-mentioned active oil separator may be further configured as follows: a guide block is arranged below the guide pipe in the first cavity, a plurality of second guide plates are vertically arranged on the surface of the guide block, and a plurality of second guide grooves are formed between the second guide plates.

[0015] By adopting the above technical solution, when the mixed gas enters the air inlet cavity through the air inlet hole, the mixed gas will contact the first baffle plate, and part of the water in the mixed gas will be separated. The separated water will flow to the second guide plate and the second guide groove through the guide pipe. The second guide plate and the second guide groove can ensure that the mixed gas and the separated water flow into the bottom of the first cavity, making the product more stable.

[0016] The above-mentioned active oil separator can be further configured as follows: the motor is a brushless motor, a mounting bracket is provided at the top of the motor, the mounting bracket is provided with a plurality of connecting ears, the third cavity and the connecting ears are provided with mounting holes for bolt installation, and the motor is detachably connected to the third cavity.

[0017] By adopting the above technical solution, the motor is a brushless motor with ultra-high speed and performance, which can fully contact the mixture with the first guide groove and separate the oil and gas in the mixture. The mounting frame and mounting hole arranged on the top of the motor connect the motor and the third cavity detachably by bolts, making the connection between the motor and the third cavity more convenient, easy to install, maintain and replace, and improving maintenance efficiency.

[0018] The beneficial effects of the utility model are as follows: when the vehicle is in a low-speed state, the motor in the third cavity rotates to fully separate the mixed gas in the first guide groove through centrifugal force. Due to the different densities of oil and gas, the separated gas flows into the fifth cavity along the first guide plate, and the remaining waste is discharged through the fourth cavity, thereby achieving the purpose of the oil separator being able to actively separate the oil when the vehicle is in a low-speed state. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is the internal structure diagram of the utility model;

[0021] Figure 3 It is an exploded view of the utility model;

[0022] Figure 4 This is a diagram of the internal structure of the third cavity of the utility model;

[0023] Figure 5 This is a structural diagram of the first guide plate of the utility model;

[0024] Label notes: 1-shell, 2-first baffle, 3-second baffle, 4-first cavity, 5-second cavity, 6-air inlet cavity, 7-third cavity, 8-motor, 9-first guide plate, 10-first guide groove, 11-third baffle, 12-fourth baffle, 13-air inlet, 14-drain hole, 15-oil outlet, 16-check valve, 17-plug-in block, 18-slot, 19-first notch, 20-guide pipe, 21-second notch, 22-third notch, 23-fourth notch, 24-fifth notch, 25-guide block, 26-second guide plate, 27-second guide groove, 28-mounting frame, 29-connecting ear, 30-mounting hole, 31-fourth cavity, 32-fifth cavity, 33-bottom plate, 34-bolt. DETAILED DESCRIPTION

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0026] like Figure 1-5The utility model shown in the figure provides the following technical scheme, an active oil separator, including a shell 1, a first baffle 2, a second baffle 3, and a bottom plate 33. The first baffle 2 and the second baffle 3 are placed in a box body to form a first cavity 4, a second cavity 5, and an air intake cavity 6. The first cavity 4, the second cavity 5, and the air intake cavity 6 are connected. The bottom plate 33 covers the first cavity 4, the second cavity 5, and the air intake cavity 6 as a shield. A third cavity 7 is provided on one side of the shell 1. A motor 8 that can be started when the car is at a low speed is installed in the third cavity 7. The third cavity 7 is connected to the second cavity 5. The motor 8 is installed with a first guide plate 9 by setting a fixed structure. A first guide groove 10 for separating mixed gas is formed between the first guide plate 9 and the motor 8. The shell 1 is provided with a third baffle. The third baffle plate 11 and the fourth baffle plate 12 form a fourth cavity 31 for waste discharge and a fifth cavity 32 for oil discharge. The first guide groove 10 is connected with the fourth cavity 31 and the fifth cavity 32. When the car is in a low speed state, the motor 8 is started, and the mixed gas enters the first cavity 4 and the second cavity 5 through the intake cavity 6 for secondary separation, and the water in the mixed gas is filtered out. When the remaining mixer enters the third cavity 7, the motor 8 rotates to fully separate the mixed gas in the first guide groove 10 through centrifugal force. Due to the different densities of oil and gas, the separated ones flow into the fifth cavity 32 along the first guide plate 9, and the remaining waste is discharged through the fourth cavity 31, so as to achieve oil separation at a low speed of the car. The purpose of the separator being able to actively separate the oil does not require waiting for the car to reach a high-speed driving state, which can improve the efficiency of separation and greatly improve the effect of the oil separator. The bottom plate 33 extends to the fifth cavity 32 as a shield. The bottom plate 33 is located at the air inlet cavity 6 and is provided with an air inlet 13. The bottom plate 33 is located at the second cavity 5 and is provided with a drainage hole 14 for the separated water to be discharged. The bottom plate 33 is located at the fifth cavity 32 and is provided with an oil outlet 15. A check valve 16 is installed in the oil outlet 15 to ensure that the separated oil can only flow out in one direction. When the mixed gas enters the first cavity 4 and the second cavity 5, the water in the mixed gas is separated and deposited in the first cavity 4. Since the first cavity 4 is connected to the second cavity 5, a certain amount of deposited water will flow into the second cavity 5 and pass through the bottom plate 33. The separated water is discharged from the drainage hole 14 of the second cavity 5, and the mixed gas that is not fully separated will enter the third cavity 7 and be fully separated from the oil and gas in the first guide groove 10 through the motor 8. The gas is directly discharged through the fourth cavity 31, and the oil flows into the fifth cavity 32 through the internal air pressure and flows out from the oil outlet 15 set at the fifth cavity 32 at the bottom plate 33. Since a check valve 16 is set in the oil outlet 15, the separated oil can only flow out in one direction, avoiding oil reflux and making the product more stable. The first baffle plate 2 is vertically provided with a first notch 19 connecting the air inlet cavity 6 and the first cavity 4, and a guide pipe 20 extending to the first cavity 4 is provided at the first notch 19. The second baffle plate 3 is provided with a second notch 21 connecting the first cavity 4 and the second cavity 5.The bottom of the second cavity 5 is provided with a third notch 22 communicating with the third cavity 7, the fourth cavity 31 is provided with a fourth notch 23 communicating with the third cavity 7, and the bottom of the fifth cavity 32 is provided with a fifth notch 24 connecting the third cavity 7 and the fifth cavity 32. The fourth notch 23 is higher than the fifth notch 24. The mixed gas is introduced into the first cavity 4 through the first notch 19 provided in the air intake cavity 6 and the guide tube 20. When the mixed gas has been fully in contact with the second baffle 3, the water in the mixed gas is separated. When the water level is higher than the second notch 21, it flows into the second cavity 5. The separated water flows out through the water outlet of the bottom plate 33. The mixed gas that is not fully separated enters the third cavity 7 through the third notch 22 for full separation. Due to the low density of the gas, the waste is discharged through the fourth notch 23 provided in the fourth cavity 31. The separated oil flows into the fifth cavity 32 through the fifth notch 24 and is discharged through the oil outlet 15 provided in the bottom plate 33.

[0027] like Figure 2-5 An active oil separator is shown, and the fixed structure includes a plug-in block 17 arranged in the third cavity 7. A slot 18 plugged into the plug-in block 17 is provided on one side of the first guide plate 9. The plug-in fixed structure makes the assembly of the motor 8 and the guide plate easier and faster, without the need for complicated tools and techniques, thereby greatly improving the assembly efficiency, providing good mechanical support, enhancing the structural stability of the entire device, and ensuring the reliability in long-term operation. The plug-in fixed structure has a certain adjustment space and can adapt to the fine adjustment requirements of the guide plate position under different working conditions, thereby enhancing the applicability and flexibility of the equipment. A guide block 25 is provided below the guide pipe 20 in the first cavity 4, and a plurality of second guide plates 26 are vertically arranged on the surface of the guide block 25. A plurality of second guide grooves 27 are formed between the second guide plates 26. When the mixed gas enters the intake cavity 6 through the intake hole, the mixed gas will contact the first baffle 2, which will Part of the water in the mixed gas is separated, and the separated water flows to the second guide plate 26 and the second guide groove 27 through the guide pipe 20. The second guide plate 26 and the second guide groove 27 can ensure that the mixed gas and the separated water flow into the bottom of the first cavity 4, making the product more stable. The motor 8 is a brushless motor 8. A mounting frame 28 is provided at the top of the motor 8. The mounting frame 28 is provided with a plurality of connecting ears 29. The third cavity 7 and the connecting ears 29 are provided with mounting holes 30 for installing bolts 34. The motor 8 is detachably connected to the third cavity 7. The motor 8 is a brushless motor 8 with super high speed and performance. It can fully contact the mixed gas with the first guide groove 10 and separate the oil and gas in the mixed gas. The mounting frame 28 and the mounting hole 30 provided at the top of the motor 8 detachably connect the motor 8 to the third cavity 7 through bolts 34, making the connection between the motor 8 and the third cavity 7 more convenient, easy to install, maintain and replace, and improving the maintenance efficiency.

[0028] The beneficial effects of the utility model are as follows: when the vehicle is in a low-speed state, the motor 8 in the third cavity 7 rotates and uses centrifugal force to fully separate the mixed gas in the first guide groove 10. Due to the different densities of oil and gas, the separated gas flows into the fifth cavity 32 along the first guide plate 9, and the remaining waste is discharged through the fourth cavity 31, thereby achieving the purpose of the oil separator being able to actively separate the oil when the vehicle is in a low-speed state.

Claims

1. An active oil separator, comprising a housing, a first baffle, a second baffle, and a bottom plate, wherein the first baffle and the second baffle are placed in a box body to form a first cavity, a second cavity, and an air inlet cavity, the first cavity, the second cavity, and the air inlet cavity are connected, and the bottom plate covers the first cavity, the second cavity, and the air inlet cavity as a shield, characterized in that: A third cavity is provided on one side of the shell, and a motor that can be started when the car is at a low speed is installed in the third cavity. The third cavity is communicated with the second cavity. The motor is installed with a first guide plate by setting a fixed structure, and a first guide groove for separating mixed gas is formed between the first guide plate and the motor. A third baffle and a fourth baffle are provided in the shell, and the third baffle and the fourth baffle form a fourth cavity for waste discharge and a fifth cavity for oil discharge, and the first guide groove is communicated with the fourth cavity and the fifth cavity.

2. An active oil separator according to claim 1, characterized in that: The bottom plate extends to the fifth cavity as a shield, the bottom plate is provided with an air inlet at the air inlet cavity, the bottom plate is provided with a drainage hole for the separated water to be discharged at the second cavity, and the bottom plate is provided with an oil outlet hole at the fifth cavity, and a check valve is installed in the oil outlet hole to ensure that the separated oil can only flow out in one direction.

3. An active oil separator according to claim 1, characterized in that: The fixing structure comprises a plug-in block arranged in the third cavity, and a slot plugged into the plug-in block is provided on one side of the first guide plate.

4. An active oil separator according to any one of claims 1 to 3, characterized in that: The first baffle is vertically provided with a first notch connecting the air inlet cavity and the first cavity, and a guide tube extending to the first cavity is provided at the first notch. The second baffle is provided with a second notch connecting the first cavity and the second cavity. The bottom of the second cavity is provided with a third notch communicating with the third cavity. The fourth cavity is provided with a fourth notch communicating with the third cavity. The bottom of the fifth cavity is provided with a fifth notch connecting the third cavity and the fifth cavity, and the fourth notch is higher than the fifth notch.

5. An active oil separator according to claim 4, characterized in that: A guide block is arranged below the guide pipe in the first cavity, a plurality of second guide plates are vertically arranged on the surface of the guide block, and a plurality of second guide grooves are formed between the second guide plates.

6. An active oil separator according to claim 1, characterized in that: The motor is a brushless motor, a mounting frame is provided at the top of the motor, the mounting frame is provided with a plurality of connecting ears, the third cavity and the connecting ears are both provided with mounting holes for bolt installation, and the motor is detachably connected to the third cavity.

Images