CN214304000U

CN214304000U - Oil-gas separator assembly of engine

Info

Publication number: CN214304000U
Application number: CN202120084693.2U
Authority: CN
Inventors: 王文杰; 张斌
Original assignee: Hefei Hengxin Power Technology Co ltd
Current assignee: Hefei Hengxin Power Technology Co ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-09-28
Anticipated expiration: 2031-01-13

Abstract

The utility model relates to an oil-gas separator assembly of an engine, which comprises a shell, a fine filtration module, an oil blocking module and an oil return module, wherein the fine filtration module is arranged in the shell and comprises a fine separation plate, a first cavity and a second cavity which are used for separating the shell, and the oil blocking module is arranged at the downstream of the fine separation plate and comprises an oil blocking plate which is used for separating the second cavity and a third cavity of the shell; the blow-by gas sequentially passes through the first cavity, the second cavity and the third cavity of the shell to form a gas flow path and output separated gas; the blow-by gas inlet of the first cavity is arranged at the upper part of the shell, the blow-by gas outlet of the third cavity is arranged on the side surface of the lower part of the shell, the blow-by gas outlet of the first cavity and the blow-by gas outlet of the second cavity are positioned on the opposite sides of the second cavity, and the blow-by gas outlet of the second cavity and the blow-by gas outlet of the third cavity are positioned on the opposite sides of the third cavity; the utility model discloses can improve the oil-gas separation efficiency of engine under the low gas channeling volume compromise the requirement of the low buckling pressure of engine under the high gas channeling volume simultaneously.

Description

Oil-gas separator assembly of engine

Technical Field

The utility model belongs to separator equipment field, especially oil and gas separator assembly field.

Background

When the engine works, a part of waste gas leaks into the crankcase of the engine from the piston ring of the combustion chamber, the waste gas is mixed with engine oil particles in the engine to form crankcase blowby gas, and the blowby gas can cause air pollution if being directly discharged into the atmosphere; if the fuel directly enters the combustion chamber, the carbon deposition in the combustion chamber is serious due to the high content of the engine oil in the blow-by gas, and the power performance of the engine is reduced; and the blow-by gas of the crankcase is directly discharged into the atmosphere to cause the problems of air pollution, reduction of the power performance of the engine and the like, so that an oil-gas separator is integrated on the engine to separate the engine oil in the blow-by gas of the crankcase.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem of the atmosphere pollution that above-mentioned engine crankcase blowby caused, the utility model discloses a following technical scheme realizes above-mentioned purpose:

an oil-gas separator assembly of an engine comprises a shell, a fine filtering module, an oil blocking module and an oil return module, wherein the fine filtering module, the oil blocking module and the oil return module are arranged in the shell, the fine filtering module comprises a fine separating plate, a first cavity and a second cavity, the first cavity and the second cavity are used for separating the shell, and the oil blocking module is arranged at the downstream of the fine separating plate and comprises an oil blocking plate used for separating the second cavity and a third cavity of the shell; the blow-by gas inlet of the first cavity is arranged at the upper part of the shell, the blow-by gas outlet of the third cavity is arranged on the side surface of the lower part of the shell, the blow-by gas outlet of the first cavity and the blow-by gas outlet of the second cavity are positioned on the opposite sides of the second cavity, and the blow-by gas outlet of the second cavity and the blow-by gas outlet of the third cavity are positioned on the opposite sides of the third cavity; when the device is used, the blow-by gas sequentially passes through the first cavity 11, the second cavity 12 and the third cavity 13 of the shell 1 to form a gas circulation path and output separated gas; and through the design of carrying out the intercommunication mouth that misplaces with air inlet, gas outlet, can be favorable to the separation of gas channeling and fluid, reduce the velocity of flow of gas channeling, more be favorable to the separation of gas channeling and fluid.

As a further optimization scheme of the utility model, the essence is strained the module and is included at least one constant cross section essence and strain the module and at least one variable cross section essence.

As a further optimization scheme of the present invention, the constant cross-section fine filtration module comprises at least one impingement hole disposed on the fine separation plate, and a first fabric disposed on a gas flow path downstream of the impingement hole; the blow-by gas can enter the first fabric through the impact holes for gas-liquid separation.

As a further optimization scheme of the utility model, the shape of the impact hole is rectangular, and the width of the impact hole is 0.5-3 mm; the adoption of this shape can improve the separation efficiency of the particle size of the small-particle oil droplets.

As the utility model discloses a further optimization scheme, but variable cross section essence filters the module including locating the fluid outlet on the smart separating plate, covers the seal valve on the fluid outlet, and locates the second fabric on the gas circulation route of fluid outlet low reaches, the seal valve changes the circulation cross section of control fluid outlet according to the pressure differential of first cavity and second cavity.

As the utility model discloses a further optimization scheme, the oil return module is including returning the oil board, it extends the section for locating the board that keeps off the oil board lower extreme to return the oil board to extend to the casing mechanism bottom, the inboard of returning the oil board constitutes the fourth cavity of casing mechanism with the outside that keeps off the oil board jointly, be equipped with the oil leak mouth with fourth cavity intercommunication on keeping off the oil board, the bottom of casing mechanism is equipped with the oil return opening with fourth cavity intercommunication.

As a further optimization scheme of the utility model, shell body mechanism's interior bottom is equipped with the draw-in groove, return oil board's inboard, keep off the outside of oil board and be connected as a whole with a side of draw-in groove, form the medial surface of fourth cavity.

As the utility model discloses a further optimization scheme, casing mechanism includes the casing, and with last casing fixed connection's lower casing, on the blowby entry of first cavity was located the casing, the blowby export of third cavity was located the casing side down, and the oil return opening is located casing bottom down.

The beneficial effects of the utility model reside in that:

1) the utility model can be beneficial to the separation of the blow-by gas and the oil liquid through the design of the staggered blow-by gas outlet, reduce the flow velocity of the blow-by gas and be more beneficial to the separation of the blow-by gas and the oil liquid;

2) the pressure in the first cavity is higher than the pressure in the second cavity under the condition of high gas channeling quantity of the engine, so that the variable cross-section impact module gradually opens a certain flow cross section according to the pressure difference between the first cavity and the second cavity to allow the gas channeling to flow through, and the requirement of low pressure loss is met;

3) the combination can improve the oil-gas separation efficiency of the engine under low blow-by quantity and simultaneously meet the requirement of low crank pressure of the engine under high blow-by quantity.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic sectional view 1 of the present invention;

fig. 3 is a schematic cross-sectional view of the lower housing of the present invention;

FIG. 4 is a schematic structural view of a constant cross-section fine filtration module of the present invention;

FIG. 5 is a schematic structural view of the variable cross-section fine filtration module of the present invention;

fig. 6 is a schematic structural view of a sealing valve of the present invention;

in the figure: 1. a housing; 11. a first cavity; 12. a second cavity; 13. a third cavity; 14. an air inlet; 15. an air outlet; 16. a fourth cavity; 17. a card slot; 18. an upper housing; 19. a lower housing; 2. a fine filtration module; 21. a fine separation plate; 31. an oil baffle plate; 41. an oil return plate; 42. an oil leakage port; 5. A constant cross-section fine filtration module; 51. a strike aperture; 52. a first fabric; 6. a variable cross-section fine filtration module; 61. a through hole; 62. a sealing valve; 63. a second fabric; 7. and an oil outlet.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it being noted that the following detailed description is given by way of illustration only, and should not be construed as limiting the scope of the present application, since numerous insubstantial modifications and adaptations of the present application will become apparent to those skilled in the art based upon the foregoing description.

Example 1

As shown in fig. 1 to 6, an oil-gas separator assembly of an engine includes a housing 1, a fine filtration module 2 disposed in the housing 1, an oil blocking module, and an oil return module, wherein the housing 1 includes an upper housing 18 and a lower housing 19 fixedly connected to the upper housing 18, the fine filtration module 2 includes a fine separation plate 21, a first cavity 11 and a second cavity 12 for separating the housing 1, and the oil blocking module is disposed at a downstream of the fine separation plate 21 and includes an oil blocking plate 31 for separating the second cavity 12 and a third cavity 13 of the housing 1; the air inlet 14 of the first cavity 11 is arranged on the upper shell 18; an air outlet 15 of the third cavity 13 is arranged on the side surface of the lower shell 19, and an oil outlet 7 is arranged at the bottom of the lower shell 19; the blowby gas outlet of the first cavity 11 and the blowby gas outlet of the second cavity 12 are located on opposite sides of the second cavity 12, and the blowby gas outlet of the second cavity 12 and the blowby gas outlet of the third cavity 13 are located on opposite sides of the third cavity 13;

when the device is used, the blow-by gas sequentially passes through the first cavity 11, the second cavity 12 and the third cavity 13 of the shell 1 to form a gas circulation path and output separated gas; the design of the communication ports which are staggered with the air inlet and the air outlet is beneficial to the separation of blow-by gas and oil, the flow velocity of blow-by gas is reduced, and the separation of blow-by gas and oil is more beneficial;

the oil return module comprises an oil return plate 41, the oil return plate 41 is a plate extension section arranged at the lower end of the oil baffle plate 31 and extends to the bottom of the shell 1, the inner side of the oil return plate 41 and the outer side of the oil baffle plate 31 jointly form a fourth cavity 16 of the shell mechanism, an oil leakage port 42 communicated with the fourth cavity 16 is arranged on the oil baffle plate 31, and an oil return port communicated with the fourth cavity 16 is arranged at the bottom of the shell 1; a clamping groove 17 is formed in the inner bottom of the shell 1, the inner side of the oil return plate 41, the outer side of the oil baffle plate 31 and one side face of the clamping groove 17 are connected into a whole, and the inner side face of the fourth cavity 16 is formed; when the oil return device is used, oil falling into the second cavity can enter the fourth cavity through the oil leakage opening 42, meanwhile, the oil in the third cavity can enter the fourth cavity through the oil return opening, and then the oil in the fourth cavity can flow out of the device through the oil outlet;

the fine filtration module 2 comprises at least one constant cross section fine filtration module 5 and at least one variable cross section fine filtration module 6; wherein the constant cross-section fine filter module 5 comprises at least one impingement hole 51 provided on the fine separation plate 21, a first fabric 52 provided on the gas flow path downstream of the impingement hole 51; the impact hole 51 is rectangular in shape, and the width thereof is 0.5mm to 3 mm; the shape can improve the separation efficiency of the particle size of the small-particle oil drops; when the gas-liquid separator is used, blow-by gas of the crankcase enters the first fabric through the impact hole to be filtered after entering the oil-gas separator, so that gas-liquid separation is performed;

the variable cross-section fine filtering module 6 comprises a through hole 61 arranged on the fine separating plate 21, a sealing valve 62 covering the through hole 61, and a second fabric 63 arranged on a gas flow path downstream of the through hole 61;

when in use, the sealing valve 62 controls the flow cross section of the through hole according to the pressure difference change of the first cavity 11 and the second cavity 12; the sealing valve 62 comprises a valve seat, a second cylindrical fabric is arranged in the valve seat in a surrounding manner, a T-shaped plate which is tightly contacted with the vent hole is arranged in a space formed by the second fabric in a surrounding manner, and an elastic piece is arranged on the T-shaped plate; when the pressure in the first cavity is higher than the pressure in the second cavity, the pressure in the first cavity presses the T-shaped plate to move downwards, so that the through hole is opened, and the blow-by gas enters the second fabric;

the oil-gas separator assembly integrates the combination of a constant-section impact fine filtering module and a variable-section impact fine filtering module, under the working condition of low gas leakage of an engine, the pressure in a first cavity is smaller, the variable-section impact fine filtering module is closed, and gas leakage is separated through the constant-section impact module; when the engine has high blow-by amount, the pressure in the first cavity is greater than the pressure in the first cavity, and the variable cross-section impact module gradually opens a certain flow cross section according to the pressure difference between the first cavity and the second cavity to allow blow-by gas to flow through so as to meet the requirement of lower pressure loss; the combination can improve the oil-gas separation efficiency of the engine under low blow-by quantity and simultaneously meet the requirement of low crank pressure of the engine under high blow-by quantity.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. An oil-gas separator assembly of an engine comprises a shell (1), a fine filtering module (2) arranged in the shell (1), an oil blocking module and an oil return module, wherein the fine filtering module (2) comprises a fine separating plate (21), a first cavity (11) and a second cavity (12) which are used for separating the shell (1), the oil blocking module is arranged at the downstream of the fine separating plate (21) and comprises an oil blocking plate (31) which is used for separating the second cavity (12) and a third cavity (13) of the shell (1); when the device is used, blow-by gas sequentially passes through the first cavity (11), the second cavity (12) and the third cavity (13) of the shell (1) to form a gas flow path and output separated gas; the method is characterized in that: an air inlet (14) of the first cavity (11) is formed in the upper portion of the shell (1), and an air outlet (15) of the third cavity (13) is formed in the side face of the lower portion of the shell (1); and the blow-by gas outlet of the first cavity (11) and the blow-by gas outlet of the second cavity (12) are positioned on the opposite sides of the second cavity (12), and the blow-by gas outlet of the second cavity (12) and the blow-by gas outlet of the third cavity (13) are positioned on the opposite sides of the third cavity (13).

2. An oil and gas separator assembly of an engine as claimed in claim 1 wherein: the fine filter module (2) comprises at least one constant cross-section fine filter module (5) and at least one variable cross-section fine filter module (6).

3. An oil and gas separator assembly of an engine as claimed in claim 2 wherein: the constant cross-section fine filter module (5) comprises at least one impingement hole (51) provided in the fine separation plate (21), a first fabric (52) provided in the gas flow path downstream of the impingement hole (51).

4. An oil and gas separator assembly of an engine as claimed in claim 3 wherein: the shape of the impact hole (51) is rectangular, and the width of the impact hole is 0.5 mm-3 mm.

5. An oil and gas separator assembly of an engine as claimed in claim 2 wherein: the variable-section fine filtering module (6) comprises a through hole (61) formed in the fine separating plate (21), a sealing valve (62) covering the through hole (61), and a second fabric (63) arranged on a gas flow path at the downstream of the through hole (61), wherein the sealing valve (62) controls the flow section of the through hole according to the pressure difference change of the first cavity (11) and the second cavity (12).

6. An oil and gas separator assembly of an engine as claimed in claim 1 wherein: the oil return module comprises an oil return plate (41), the oil return plate (41) is an extension section of a plate arranged at the lower end of the oil baffle plate (31) and extends to the bottom of the shell (1), the inner side of the oil return plate (41) and the outer side of the oil baffle plate (31) jointly form a fourth cavity (16) of the shell mechanism, an oil leakage port (42) communicated with the fourth cavity (16) is formed in the oil baffle plate (31), and an oil return port communicated with the fourth cavity (16) is formed in the bottom of the shell (1).

7. An oil and gas separator assembly of an engine as in claim 6 wherein: the inner bottom of the shell (1) is provided with a clamping groove (17), and the inner side of the oil return plate (41), the outer side of the oil baffle plate (31) and one side face of the clamping groove (17) are connected into a whole to form the inner side face of the fourth cavity (16).

8. An oil and gas separator assembly of an engine as claimed in claim 1 wherein: the shell (1) comprises an upper shell (18) and a lower shell (19) fixedly connected with the upper shell (18), an air inlet (14) of the first cavity (11) is formed in the upper shell (18), an air outlet (15) of the third cavity (13) is formed in the side face of the lower shell (19), and an oil outlet (7) is formed in the bottom of the lower shell (19).