CN213928489U

CN213928489U - Passive oil-gas separator of automobile engine

Info

Publication number: CN213928489U
Application number: CN202021804447.1U
Authority: CN
Inventors: 方立锋; 蔡炳芳; 饶聪超; 徐亚辉
Original assignee: Shentong Technology Group Co Ltd
Current assignee: Shentong Technology Group Co Ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-08-10
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a passive formula oil and gas separator of automobile engine aims at solving the comparatively heavy not enough of present oil and gas separator. The utility model discloses an including oil inlet, oil-out, venthole, the separator is gone into from the feed liquor hole to the gas-oil mixture, and the air is discharged through the venthole, and fluid in the shunt flows back to in cylinder body and the crankcase through the oil-out. The utility model discloses the structure lightweight adapts to the extended range car.

Description

Passive oil-gas separator of automobile engine

Technical Field

The utility model relates to an automobile parts field, more specifically says that it relates to a passive formula oil and gas separator of automobile engine.

Background

When the engine works, high-pressure high-temperature combustible mixed gas and burnt gas in the combustion chamber can blow into the crankcase through a gap between the piston ring and the cylinder sleeve. Blow-by gas composed of these fuel oil, water vapor and combustion exhaust gas enters the engine oil in the oil pan, resulting in a decrease in the viscosity of the engine oil, an increase in the oxidative deterioration, and the like. When the crankcase becomes clogged by the intake of exhaust gas, the crankcase becomes a closed space. At this time, combustible gas is easy to condense in the crankcase, and then the engine oil is slowly and completely eroded, so that the engine oil cannot be normally used.

The oil-gas separator has problems, and the turbine is possibly not intervened and can not work normally, so that the automobile cannot accelerate. Therefore, the oil separator is very important in a ventilation system of an automobile engine.

The Chinese patent publication No. CN210360472U is named as a machining tool for a waste gas valve body of a turbocharger, and the application discloses a machining tool for the waste gas valve body of the turbocharger, which belongs to the field of turbochargers and comprises a bottom plate, a positioning plate and a clamping device; the positioning plate is arranged on the bottom plate and comprises a horizontal bearing part for fixing the waste gas valve body, the horizontal bearing part is vertical to the bottom plate, and the clamping device is detachably fixed on the horizontal bearing part; the clamping device comprises a left clamp and a right clamp which are oppositely arranged at intervals to form a space for clamping and placing the waste gas valve body; a waist-shaped hole which is arranged in the left-right direction is arranged on the horizontal bearing part in a penetrating way; the valve seat of the waste gas valve body is adjustably fixed on the horizontal bearing part through a waist-shaped hole. It is heavy and difficult to adapt to the extended range type automobile.

Disclosure of Invention

The utility model overcomes present oil and liquid separator is comparatively heavy not enough, provides a passive formula oil and gas separator of automobile engine, and its volume is less, has satisfied car lightweight purpose.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a passive oil-gas separator of an automobile engine is characterized in that separators are arranged on a cylinder body and a crank case and comprise an oil inlet, an oil outlet, an air outlet and an engine oil filling port, an air-oil mixture flows into the separators from a liquid inlet hole, air is discharged through the air outlet, oil in a flow divider flows back to the cylinder body and the crank case through the oil outlet, the oil inlet and the oil outlet are arranged on the bottom surfaces of the separators, the cylinder body and the crank case are connected, an extension shaft extends out of the oil outlet in the axial direction, a separation diaphragm ring is sleeved on the extension shaft, and a plurality of through holes are formed in the oil outlet at equal intervals around the extension shaft.

The gas-oil separator is arranged on the cylinder body and the crank box, the front part of the gas-oil separator is connected with a separating device for separating large oil from liquid, the oil-gas separator is connected with the turbine, and the exhaust gas is input into the turbine through the air outlet to push the turbine to rotate. The separated oil drops are gathered together and then flow out to the oil outlet.

Preferably, the oil-gas separator further comprises a pressure control valve, the pressure control valve is communicated with the atmospheric pressure, the pressure control valve comprises a control valve template, a control valve cover plate, a control valve spring and a control valve baffle, the oil-gas separator is provided with a pressure balance convex nozzle corresponding to the pressure control valve, the control valve spring is sleeved on the pressure balance convex nozzle, the control valve spring abuts against the control valve baffle, the control valve baffle abuts against the bottom of the control valve template, and the outer edge of the control valve template is fixedly connected to the control valve cover plate. One end of the air pressure balance convex nozzle divides the whole separator into two spaces, and the two cavities can be communicated only through the air pressure balance convex nozzle. The pressure control valve is used for controlling the flow rate in the separator, and when the flow rate is too large, the internal air pressure can be correspondingly changed. The control valve cover plate is pressed on the outer edge of the control valve die piece, and a cavity is formed between the control valve die piece and the air pressure balance convex nozzle. When the internal air pressure is reduced, the control valve diaphragm overcomes the elasticity of the control valve spring and abuts against the air pressure balance convex nozzle under the action of the external atmospheric pressure, and air cannot pass through the control valve diaphragm. When the flow rate slows down, the internal air pressure changes, the control valve diaphragm is separated from the air pressure balance convex nozzle under the action of the control valve spring, the space in the separator is enlarged, and the air passes through the air pressure balance convex nozzle. The flow rate in the system is controlled within a reasonable range by adjusting the separator through the control valve, and the stable work of the driving device is ensured.

Preferably, the air outlet hole is connected with the air outlet pipe nozzle, the air outlet pipe nozzle is respectively provided with an air guide hole and a detection hole, the air guide hole diameter one-way valve is communicated with the air outlet hole, and the detection hole is communicated with the interior of the separator. The air guide hole is connected with an external pipeline through a one-way valve. The gas can only be ejected but not entered.

Preferably, the detection hole is used for mounting the odm detector. The detector is installed in the detection hole and used for detecting the flow of gas inside and the gas content of each specific pollution detection index.

Preferably, the oil outlet is connected with a one-way valve. The oil outlet crank case is provided with a one-way valve, so that gas in the crank case can be prevented from reversely flowing into the separator. Besides oil flowing out from the oil outlet, air can be introduced into the crank case to maintain the forced ventilation of the crank case.

Preferably, one end of the air outlet nozzle axially extends to form a connecting shaft, the axis of the air outlet extends to form a corresponding extending shaft, the extending shaft is abutted against the connecting shaft, and the connecting shaft is sleeved with a diaphragm separating ring. The end part of the connecting shaft is provided with a pit, the extension shaft is positioned when the extension shaft is abutted, the air outlet is circular, a plurality of through holes are distributed at equal intervals around the circle center of the air outlet, the separation membrane ring can slide back and forth on the extension shaft, and when air is blown outwards from the inside of the separator, the separation membrane ring is blown outwards and is in a ventilation state. When the pipeline blows air inwards, the separating membrane ring is blown to the surface of the air outlet to cover the through hole and is in a separating state. Similarly, the oil outlet is connected with a corresponding extension shaft, the oil outlet is also provided with a plurality of through holes, the extension shaft is also sleeved with a separation membrane ring, and the separation membrane ring is connected to the extension shaft in a sliding manner. The separation membrane ring realizes the function of one-way conduction in the same way as the work of the air outlet hole.

Preferably, an air supplementing pipe is further connected, and an umbrella drop valve is connected between the air supplementing pipe and the separator. When the internal air is insufficient, the air is supplemented through the supplementing pipe. The parachute valve has two functions, the first is to generate dispersed airflow to avoid disturbing the internal airflow. Another function is to provide fresh oxygen-enriched air to improve engine combustion efficiency.

Preferably, the separator comprises an upper shell and a lower shell, the lower shell is fixedly connected with a cylinder cover on the cylinder body through a sealing ring, the air pressure balance convex nozzle and the air outlet are arranged on the upper shell, and the oil inlet and the oil outlet are arranged on the lower shell. The upper housing also has an oil injection port. The air supplement pipe is also arranged on the upper shell. The sealing ring is arranged along the outer edge of the lower shell, and corresponding connecting strips are arranged at the bottom of the lower shell corresponding to the oil inlet and the oil outlet. The connecting strip and the outer edge of the sealing ring form a corresponding secondary sealing ring, so that oil leakage of the oil inlet and the oil outlet is avoided.

Preferably, the upper shell and the lower shell are provided with liquefaction cavities corresponding to the oil inlet, and the lower shell is provided with a plurality of steps which are raised in sequence corresponding to the liquefaction cavities. The above arrangement enables separation of air and oil droplets by compression of the space.

Compared with the prior art, the beneficial effects of the utility model are that: (1) is more portable and is suitable for extended-range automobiles; (2) the waste gas is fully utilized, the generation of pollution gas is reduced, and the environment is protected.

Drawings

Fig. 1 is a top view of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1A-A;

FIG. 3 is a cross-sectional view of FIG. 2B-B;

fig. 4 is a schematic view of the upper housing of the present invention;

fig. 5 is a schematic view of a pressure control valve in embodiment 2;

fig. 6 is a schematic view of a seal ring of the present invention;

in the figure: the oil filling device comprises an oil inlet 1, an oil outlet 2, an air outlet hole 3, a control valve template 4, a control valve cover plate 5, a control valve spring 6, a control valve baffle 7, an air pressure balance convex nozzle 8, an air outlet nozzle 9, an air guide hole 10, a detection hole 11, a one-way valve 12, a connecting shaft 13, an extension shaft 14, a separation membrane ring 15, an air supplementing pipe 16, an umbrella descending valve 17, an upper shell 18, a lower shell 19, a liquefaction cavity 20, a sealing ring 21, a step 22, a magnetic ring 23, a bonding section 24 and an engine oil filling opening 25.

Detailed Description

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example 1:

as shown in fig. 1, 2 and 3, a passive oil-gas separator of an automobile engine is characterized in that a separator is arranged on a cylinder body and a crank case and comprises an oil inlet 1, an oil outlet 2, an air outlet 3 and an engine oil injection opening 25, an air-oil mixture flows into the separator from a liquid inlet hole, air is discharged from the air outlet 3, oil in a flow divider flows back to the cylinder body and the crank case through the oil outlet 2, the oil inlet and the oil outlet are arranged on the bottom surface of the separator, which is connected with the cylinder body and the crank case, a projecting shaft 14 extends from the oil outlet 2 in the axial direction, a separating diaphragm ring 15 is sleeved on the projecting shaft, and a plurality of through holes are formed in the oil outlet 2 at equal intervals around the projecting shaft 14. As shown in fig. 5, the pressure control valve is further included, the pressure control valve is communicated with the atmospheric pressure, the pressure control valve includes a control valve mold piece 4, a control valve cover plate 5, a control valve spring 6 and a control valve baffle 7, the air-pressure balance convex nozzle 8 of the oil-gas separator, which corresponds to the pressure control valve, is sleeved with the control valve spring 6, the control valve spring 6 is abutted against the control valve baffle 7, the control valve baffle 7 is abutted against the bottom of the control valve mold piece 4, and the outer edge of the control valve mold piece 4 is fixedly connected to the control valve cover plate 5. The whole separator is divided into two spaces by one end of the air pressure balance convex nozzle 8, and the two cavities can be communicated only through the air pressure balance convex nozzle 8. The pressure control valve is used for controlling the flow rate in the separator, and when the flow rate is too large, the internal air pressure can be correspondingly changed. The control valve cover plate 5 is pressed on the outer edge of the control valve mold piece 4, and a cavity is formed between the control valve mold piece 4 and the air pressure balance convex nozzle 8. When the internal air pressure is reduced, the control valve diaphragm 4 overcomes the elasticity of the control valve spring 6 and abuts against the air pressure balance convex nozzle 8 under the action of the external air pressure, and air cannot pass through. When the flow rate becomes slow, the internal air pressure changes, the control valve diaphragm 4 is separated from the air pressure balance convex nozzle 8 under the action of the control valve spring 6, the space in the separator becomes large, and the air passes through the air pressure balance convex nozzle 8. The flow rate in the system is controlled within a reasonable range by adjusting the separator through the control valve, and the stable work of the driving device is ensured. The air outlet 3 is connected with an air outlet pipe nozzle 9, the air outlet pipe nozzle 9 is provided with an air guide hole 10 and a detection hole 11, the air guide hole 10 is communicated with the air outlet 3 through a one-way valve 12, and the detection hole 11 is communicated with the interior of the separator. The air vent 10 is connected to an external pipeline through a one-way valve 12. The gas can only be ejected but not entered. The inspection hole 11 is used for mounting an odm detector. The detector is installed in the detection hole 11, and detects the flow rate of gas inside and the gas content of each specific pollution detection index. The oil outlet 2 is connected with a one-way valve 12. The oil outlet 2 is arranged in the crankcase, and a one-way valve 12 is arranged, so that gas in the crankcase can be prevented from flowing into the separator reversely. Besides oil liquid flowing out from the oil outlet 2, air can be introduced into the crankcase to maintain the forced ventilation of the crankcase. One end of the air outlet nozzle axially extends to form a connecting shaft 13, the axis of the air outlet extends to form a corresponding extending shaft 14, the extending shaft 14 is abutted to the connecting shaft 13, and a diaphragm separating ring 15 is sleeved on the connecting shaft 13. The end of the connecting shaft 13 is provided with a pit, when the connecting shaft is abutted against the extending shaft 14, the extending shaft 14 is positioned, the air outlet is in a circular shape, a plurality of through holes are distributed around the circle center at equal intervals, the separation membrane ring 15 can slide back and forth on the extending shaft 14, and when air is blown outwards from the inside of the separator, the separation membrane ring 15 blows outwards and is in a ventilation state. When the pipe blows air inward, the separation film ring 15 is blown to the air outlet surface to cover the through hole, in a separated state. Similarly, the oil outlet 2 is connected with a corresponding extension shaft 14, the oil outlet 2 is also provided with a plurality of through holes, the extension shaft 14 is also sleeved with a separating diaphragm ring 15, the separating diaphragm ring 15 is connected to the extension shaft 14 in a sliding manner, so that the separating diaphragm ring is prevented from being blown out by air flow, an air outlet baffle is fixed at the bottom of the air outlet, and the air outlet baffle is used for blocking the separating diaphragm ring and preventing the separating diaphragm ring from being blown out. The separation membrane ring 15 achieves a one-way conduction function in the same way as the air outlet hole 3 works. And an air supply pipe 16 is also connected, and an umbrella drop valve 17 is connected between the air supply pipe 16 and the separator. When the internal air is insufficient, the air is supplemented through the supplementing pipe. The parachute valve 17 has two functions, the first of which is to create a dispersed airflow to avoid disturbing the internal airflow. Another function is to provide fresh oxygen-enriched air to improve engine combustion efficiency.

As shown in fig. 4 and 6, the separator includes an upper shell 18 and a lower shell 19, the lower shell 19 is fixedly connected to a cylinder cover on the cylinder body through a sealing ring 21, the air pressure balance convex nozzle 8 and the air outlet hole 3 are arranged on the upper shell 18, and the oil inlet 1 and the oil outlet are arranged on the lower shell 19. The upper case 18 also has an oil injection port 25. An air supply tube 16 is also provided on the upper housing 18. The sealing ring 21 is arranged along the outer edge of the lower shell 19, and corresponding connecting strips are arranged at the bottom of the lower shell 19 corresponding to the oil inlet 1 and the oil outlet 2. The connecting strip and the outer edge of the sealing ring 21 form a corresponding secondary sealing ring 21, so that oil leakage of the oil inlet 1 and the oil outlet 2 is avoided. The positions of the upper shell 18 and the lower shell 19 corresponding to the oil inlet 1 are provided with a liquefaction cavity 20, and the lower shell 19 corresponding to the liquefaction cavity 20 is provided with a plurality of steps 22 which are raised in sequence. The above arrangement enables separation of air and oil droplets by compression of the space.

The gas-oil separator is arranged on the cylinder body and the crank box, the front part of the gas-oil separator is connected with a separating device for separating large oil and liquid, the oil-gas separator is connected with the turbine, and the exhaust gas is input into the turbine through the air outlet 3 to push the turbine to rotate. The separated oil drops are gathered together and then flow out to the oil outlet 2.

Example 2:

the present embodiment has the following features on the basis of embodiment 1:

as shown in fig. 6, the bottom of the control valve baffle 7 is further connected with a magnetic ring 23, two ends of the control valve spring 6 are respectively extended with an attaching section 24, the attaching sections 24 of the control valve spring 6 are separated in a natural state, and the attaching sections 24 of the control valve spring 6 are attached to form a closed loop in a compressed state.

The method for controlling the flow rate in example 1 is that the air flow is sufficiently large, then the air pressure balance nipple 8 is closed, and after the flow rate is zero, the air pressure balance nipple 8 is opened again, and the air flow is recovered. When the airflow is too large, a pulse airflow may be formed, and the jerk may cause the vacuum degree in the engine to rise and the power of the automobile to be insufficient. To avoid this, a magnetic ring 23 is provided at the bottom of the control valve baffle 7. When the control valve diaphragm 4 is compressed under atmospheric pressure, the control valve spring 6 is compressed, the joint section 24 is jointed, the whole spring forms a closed loop, and the magnetic flux of the closed loop is changed when the magnetic ring 23 (i.e. the magnet) enters. Correspondingly, the spring will resist the entry of the magnet ring 23. Thus, the entire control valve diaphragm 4 is subjected to a large upward supporting force. The magnetic ring 23 slows down the speed of the control valve die 4 attaching to the air pressure balance nipple 8, and pulse type air flow is avoided.

The above-described embodiments are merely preferred embodiments of the present invention, which are not intended to be limiting in any way, and other variations and modifications are possible without departing from the scope of the invention as set forth in the following claims.

Claims

1. A passive oil-gas separator of an automobile engine is characterized in that separators are mounted on a cylinder body and a crank case and comprise an oil inlet, an oil outlet, an air outlet and an engine oil filling port, a gasoline mixture flows into the separators from a liquid inlet hole, air is discharged through the air outlet, oil in a flow divider flows back to the cylinder body and the crank case through the oil outlet, the oil inlet and the oil outlet are arranged on the bottom surfaces of the separators, the cylinder body and the crank case, the oil outlet extends out of a projecting shaft in the axial direction, a separating diaphragm ring is sleeved on the projecting shaft, and a plurality of through holes are formed in the oil outlet at equal intervals around the projecting shaft.

2. The passive oil-gas separator of the automobile engine as claimed in claim 1, further comprising a pressure control valve, wherein the pressure control valve is communicated with atmospheric pressure, the pressure control valve comprises a control valve diaphragm, a control valve cover plate, a control valve spring and a control valve baffle, the oil-gas separator is provided with a control valve spring sleeved on the air pressure balance convex nozzle corresponding to the pressure control valve, the control valve spring abuts against the control valve baffle, the control valve baffle abuts against the bottom of the control valve diaphragm, and the outer edge of the control valve diaphragm is fixedly connected to the control valve cover plate.

3. The passive oil-gas separator of the automobile engine as claimed in claim 1, wherein the gas outlet is connected with a gas outlet nozzle, the gas outlet nozzle is respectively provided with a gas guide hole and a detection hole, the gas guide hole one-way valve is communicated with the gas outlet, and the detection hole is communicated with the interior of the separator.

4. The passive oil-gas separator of an automobile engine as claimed in claim 3, wherein the sensing hole is used for mounting an odm sensor.

5. The passive oil-gas separator of the automobile engine as claimed in claim 1, wherein an air supply pipe is further connected, and a parachute valve is connected between the air supply pipe and the separator.

6. The passive oil-gas separator of the automobile engine as claimed in claim 2, wherein the separator comprises an upper shell and a lower shell, the lower shell is fixedly connected with a cylinder cover on the cylinder body through a sealing ring, the air pressure balancing convex nozzle and the air outlet hole are arranged on the upper shell, and the oil inlet and the oil outlet hole are arranged on the lower shell.

7. The passive oil-gas separator of the automobile engine as claimed in claim 6, wherein the upper shell and the lower shell are provided with liquefaction cavities corresponding to the oil inlet, and the lower shell is provided with a plurality of steps which are raised in sequence corresponding to the liquefaction cavities.