CN217558401U

CN217558401U - Maintenance-free integrated oil-gas separator

Info

Publication number: CN217558401U
Application number: CN202123379682.6U
Authority: CN
Inventors: 张逸龙; 徐铭鸿; 陈晓晨
Original assignee: Mann and Hummel Filter Shanghai Co Ltd
Current assignee: Mann and Hummel Filter Shanghai Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-10-11
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to a maintenance-free integrated oil-gas separator, including the casing and integrated oil cleaner assembly and the oil-gas separator assembly on the casing, oil-gas separator assembly includes shell and inner shell, form the air inlet chamber between shell and the inner shell, the air inlet chamber is equipped with the air inlet, the upper portion is equipped with the outlet duct in the middle of the inner shell, the oil gallery bottom is connected the oil gallery; the inner shell is characterized in that a plurality of nozzle holes communicated with an inner cavity of the inner shell are formed in the wall surface of the inner shell, and nail plates are arranged in the inner cavity of the inner shell and correspond to the nozzle holes. The utility model discloses with the nail board integration on oil and gas separator inner shell, use striking formula oil gas separation mode, high-efficient separation oil gas need not maintain the maintenance.

Description

Maintenance-free integrated oil-gas separator

Technical Field

The utility model relates to an oil-gas separation device, concretely relates to integrated oil-gas separator of non-maintaining.

Background

At present, because of the stricter emission regulations, the oil consumption and the exhaust emission of the engine oil are more and more concerned in the design of automobiles. To reduce the amount of oil carry-over in the crankcase blow-by, it is important to design an efficient crankcase ventilation system. At present, a large number of closed crankcase ventilation systems exist in the market, have high integration degree and mainly comprise a plastic cylinder head cover, a labyrinth type oil-gas separator, a diaphragm type pressure regulating valve and the like. Depending on the shape and size of the cover, the structure of the membrane, which has a functional influence on the sealing of the cover and on the system pressure inside the cover, gas leakage problems can result. In addition, a large number of sealing elements exist in the design of an engine, and in order to achieve the aims of light weight, integration and maintenance cost reduction, it is necessary to design a maintenance-free integrated oil-gas separator.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a maintenance-free integrated oil and gas separator in order to solve above-mentioned problem, the utility model discloses oil and gas separator is integrated on same casing with oil filter assembly and oil and gas separator assembly, and the reduction in size saves space, simultaneously, with the nail board integration on oil and gas separator inner shell, uses striking oil-gas separation mode, reaches high-efficient separation oil gas purpose, need not maintain the maintenance.

The utility model discloses a concrete technical scheme as follows:

a maintenance-free integrated oil-gas separator comprises a shell, and an oil filter assembly and an oil-gas separator assembly which are integrated on the shell, wherein the oil-gas separator assembly comprises an outer shell and an inner shell, an air inlet cavity is formed between the outer shell and the inner shell, an air inlet is formed in the air inlet cavity, an air outlet pipe is arranged at the upper middle part of the inner shell, and the bottom of the inner shell is connected with an oil return groove; the inner shell is characterized in that a plurality of nozzle holes communicated with an inner cavity of the inner shell are formed in the wall surface of the inner shell, and nail plates are arranged in the inner cavity of the inner shell and correspond to the nozzle holes.

Further, the pegboard includes a bottom plate and a plurality of spike tooth structures disposed perpendicular to the bottom plate.

Further, the top end of the spike tooth structure is trapezoidal.

Furthermore, a bypass valve is arranged on the inner shell and comprises a valve body, a spring and a valve seat, the valve body and the spring are mounted on the valve seat, the valve body and the spring are in a sealing state under the action of the spring in a normal working state, and the valve body is opened under the high pressure of the air inlet cavity.

Furthermore, the outer shell and the inner shell of the oil-gas separator are rotatably installed into an oil-gas separator main body through a buckling structure with a self-locking function, and are sealed up and down through the O-shaped ring.

Furthermore, a heat insulation plate is arranged outside the oil-gas separator assembly.

Further, the oil-gas separator assembly and the oil filter assembly are made of high-temperature-resistant plastics.

Further, the oil filter assembly includes a housing and a filter element mounted within the housing.

Further, the air outlet pipe has a certain length, the lower end of the air outlet pipe is located in the middle of the cavity of the inner shell, and the upper end of the air outlet pipe is communicated with the outside.

The utility model discloses a concrete theory of operation does: the filter shell is provided with two pipelines which respectively correspond to the oil filter assembly and the oil-gas separator assembly, engine oil is filtered through the oil filter assembly, oil-gas mixed gas flows through the spinning disk of the inner shell of the oil-gas separator through the air inlet of the oil-gas separator assembly, after large oil drops are separated through inertia and gravity, the residual gas flows through a plurality of nozzle holes on the inner shell of the oil-gas separator, the oil-gas mixed gas is accelerated to collide against the nail plate, a large number of conical structures are arranged on the surface of the nail plate, the diffusivity of the mixed gas is increased, oil particles in the oil-gas mixed gas are subjected to secondary separation, and the separated clean gas flows out through the air outlet pipe, so that the purpose of efficiently separating oil and gas is achieved, and maintenance can be avoided.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. and (3) lightweight design: the oil filter and the crankcase ventilation system are integrated into a whole, and the oil filter assembly and the oil-gas separator assembly are integrated on the same shell, so that the size is reduced, and the space is saved; and meanwhile, the weight redundancy of the product is effectively reduced by using high-temperature resistant materials.

2. Maintenance: the impact type nail plate structure is used, the nail plate is integrated on the inner shell of the oil-gas separator, the impact type oil-gas separation mode is used, the purpose of efficiently separating oil and gas is achieved, and maintenance is not needed.

3. Safe and reliable: the internal clamping structure with self-locking avoids misoperation during installation, and leads to incomplete installation of products.

4. Safe and reliable: effectively reduce the sealing area, reduce the sealing performance inefficacy possibility.

Drawings

FIG. 1 is a schematic overall structure diagram of an integrated oil-gas separator;

FIG. 2 is a schematic sectional structure diagram of the integrated oil-gas separator;

FIG. 3 is a schematic structural diagram of an oil-gas separator assembly;

FIG. 4 is a schematic structural diagram of an oil-gas separator assembly with a heat insulation plate;

FIGS. 5 and 6 are schematic sectional structural diagrams of the oil-gas separator assembly;

FIGS. 7 and 8 are schematic diagrams of the structure of an inner shell of the oil-gas separator assembly;

FIGS. 9 and 10 are schematic sectional structural diagrams of the oil-gas separator assembly;

in the figure: 100-an oil-gas separator assembly, 200-an oil filter assembly, 3-a heat insulation plate and 101-a shell; 102-an inner shell; 103-nail plate; 104-an air outlet pipe; 105-a nozzle hole; 106-a bypass valve; 107-O-ring; 201-oil filter housing; 202-filter element.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, a maintenance-free integrated oil and gas separator comprises a housing, and an oil filter assembly 200 and an oil and gas separator assembly 100 integrated on the housing, wherein the oil and gas separator assembly 100 and the oil filter assembly 200 are made of high temperature resistant plastics, the oil filter assembly 200 comprises an oil filter housing 201 and a filter element 202 mounted in the oil filter housing 201, a heat insulation plate 300 is arranged outside the oil and gas separator assembly 100, and the oil filter assembly and the oil and gas separator assembly are integrated on the same housing, so that the size of the device can be reduced, and the space can be saved.

As shown in fig. 3 to 5, the oil-gas separator assembly 100 includes an outer casing 101 and an inner casing 102, and the outer casing 101 and the inner casing 102 of the oil-gas separator are rotatably mounted as an oil-gas separator body by a snap structure with a self-locking function and are sealed up and down by using an O-ring 107. An air inlet cavity is formed between the outer shell 101 and the inner shell 102, an air inlet is formed in the air inlet cavity, an air outlet pipe 104 is arranged at the upper portion of the inner shell 102, the air outlet pipe 104 has a certain length, the lower end of the air outlet pipe is located in the middle of the cavity of the inner shell 102, the upper end of the air outlet pipe leads to the outside, and the bottom of the inner shell 102 is connected with an oil return groove. As shown in fig. 6 and 7, the wall surface of the inner shell 102 is provided with a plurality of nozzle holes 105 communicated with the inner cavity thereof, the nail plate 103 is arranged in the inner cavity of the inner shell 102 corresponding to the nozzle holes 105, the nail plate 103 comprises a bottom plate and a plurality of nail tooth structures perpendicular to the bottom plate, the top ends of the nail tooth structures are trapezoidal, and the structure is beneficial to gas-liquid separation of high-pressure high-speed airflow.

During operation, the filter shell has two sets of pipelines, correspond oil filter assembly and oil and gas separator assembly respectively, filter engine oil through the oil filter assembly, oil-gas mixture flows through the spinning disk of oil and gas separator inner shell through the air inlet of oil and gas separator assembly, after separating out big oil drop earlier through inertia and gravity action, the surplus gas flows through a plurality of nozzle holes 105 on the oil and gas separator inner shell again, with higher speed and hit to nail board 103, a large amount of toper structures are arranged on nail board 103 surface, increase the diffusivity of mist, make the oil granule in the oil-gas mixture carry out the secondary separation, the clean gas of separation flows through the outlet duct, reach the purpose of high-efficient separation oil gas, and can avoid maintaining.

As shown in fig. 8, 9 and 10, the bypass valve 106 is arranged on the inner shell 102, the bypass valve 106 comprises a valve body, a spring and a valve seat, the valve body and the spring are mounted on the valve seat, in a normal working state, the valve body seals the bypass valve 106 under the action of the spring, when the air inlet cavity is in a high-pressure condition, the valve body is opened, high-pressure air flows to the air outlet pipe through the bypass valve, and the safety of use under an ultrahigh-pressure working condition is ensured due to the arrangement of the bypass valve 106.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims

1. The maintenance-free integrated oil-gas separator is characterized by comprising a shell, and an oil filter assembly (200) and an oil-gas separator assembly (100) which are integrated on the shell,

the oil-gas separator assembly (100) comprises an outer shell (101) and an inner shell (102), an air inlet cavity is formed between the outer shell (101) and the inner shell (102), the air inlet cavity is provided with an air inlet, an air outlet pipe (104) is arranged at the upper part of the inner shell (102), and the bottom of the inner shell (102) is connected with an oil return groove;

the wall surface of the inner shell (102) is provided with a plurality of nozzle holes (105) communicated with the inner cavity of the inner shell, and the inner cavity of the inner shell (102) is provided with nail plates (103) corresponding to the nozzle holes (105).

2. The maintenance-free integrated oil and gas separator as claimed in claim 1, wherein the spike plate (103) comprises a bottom plate and a plurality of spike teeth structures arranged perpendicular to the bottom plate.

3. The maintenance-free integrated oil and gas separator as claimed in claim 2, wherein the top end of the spike tooth structure is trapezoidal in shape.

4. The maintenance-free integrated oil-gas separator as claimed in claim 1, wherein a bypass valve (106) is arranged on the inner shell (102), the bypass valve (106) comprises a valve body, a spring and a valve seat, the valve body and the spring are mounted on the valve seat, the valve body is in a sealing state under the action of the spring in a normal working state, and the valve body is opened under the high pressure of the air inlet cavity.

5. The maintenance-free integrated oil-gas separator as claimed in claim 1, wherein the outer shell (101) and the inner shell (102) of the oil-gas separator are rotatably installed into an oil-gas separator body through a buckling structure with a self-locking function, and are sealed up and down through O-rings (107).

6. The maintenance-free integrated oil-gas separator according to claim 1, wherein a heat insulation plate (300) is arranged outside the oil-gas separator assembly (100).

7. The maintenance-free integrated oil-gas separator according to claim 1, wherein the oil-gas separator assembly (100) and the oil filter assembly (200) are made of high-temperature-resistant plastics.

8. The maintenance-free integrated oil and gas separator as claimed in claim 1, wherein the oil filter assembly (200) comprises an oil filter housing (201) and a filter element (202) mounted in the oil filter housing (201).

9. The maintenance-free integrated oil-gas separator as claimed in claim 1, wherein the gas outlet pipe (104) has a certain length, the lower end of the gas outlet pipe is located in the middle of the cavity of the inner shell (102), and the upper end of the gas outlet pipe is open to the outside.