CN214464484U - Oil-gas separation device and engine - Google Patents

Abstract

The utility model discloses an oil-gas separation device and engine, wherein oil-gas separation device include the casing and with casing complex lid, wherein be provided with waste gas import on the casing, the lid is provided with exhaust outlet, is provided with in the casing and holds the chamber, wherein holds the intracavity and is provided with filtering component, and filtering component will hold the chamber and separate for first separation chamber and second separation chamber, and first separation chamber is linked together with exhaust inlet, and second separation chamber is linked together with exhaust outlet. The oil-gas separation device can realize more thorough and efficient oil-gas separation, thereby ensuring that the engine can run economically, stably and reliably under the working condition of large blow-by gas.

Description

Oil-gas separation device and engine

Technical Field

The utility model relates to the technical field of engines, in particular to oil-gas separation device and engine.

Background

With the continuous development of diesel engine technology, high-power engines have become the target of each main engine factory, and accordingly the blow-by amount of the engines is larger and larger, the wear of piston rings caused by the increasing running of the engines can make the blow-by amount larger, and the problems of crankcase pressure increase, engine oil corrosion and the like caused by the fact that the exhaust gas is not discharged in time.

In order to ensure that the engine can stably operate and improve the reliability and the durability of the engine, an oil-gas separation device is required to be arranged in a crankshaft ventilation system for oil-gas separation, so that the stable operation of the engine under a large amount of gas blowby working conditions is maintained, most of the current engines mainly adopt a fiber filter element type separation and an impact type separation device for separating oil and gas, but the pure filtration type separation or impact type separation can cause the incomplete oil-gas separation, so that the consumption of engine oil is high.

Therefore, how to design an oil-gas separation device, can make oil-gas separation more thorough, more high-efficient to guarantee that the engine can be economy, stable, reliable operation under big blow-by operating mode is the technical problem that technical staff in the field need to solve urgently.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an oil-gas separation device can make more thorough of oil-gas separation, and is more high-efficient to guarantee that the engine can be economy, stable, reliable operation under big blowby gas operating mode.

Another object of the present invention is to provide an engine.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an oil-gas separation device, including the casing and with casing complex lid, be provided with the waste gas import on the casing, be provided with the exhaust outlet on the lid, be provided with in the casing and hold the chamber, it is used for separating to hold the intracavity be provided with hold chamber filtering component spare, filtering component will it separates for first disengagement chamber and second disengagement chamber to hold the chamber, first disengagement chamber with the waste gas import is linked together, the second disengagement chamber with the exhaust outlet is linked together.

Preferably, the exhaust gas inlet and the inner side wall of the shell are tangentially arranged.

Preferably, the filtering component comprises a filtering support and a filtering net, the filtering support is used for being connected with the inner wall of the accommodating cavity, the filtering net is arranged on the filtering support, a first positioning block is arranged on the filtering support, and a first positioning groove matched with the first positioning block is formed in the filtering net.

Preferably, the filter support is in sealing connection with the inner wall of the housing.

Preferably, the filter screen is a curved filter screen protruding towards the first separation chamber, and a plurality of through holes for passing through of engine exhaust gas are uniformly formed in the filter screen.

Preferably, the filtering support is further provided with a second positioning block, a plurality of supporting columns are further arranged along the circumferential direction of the inner wall of the shell, and any one of the supporting columns is further provided with a second positioning groove used for being matched with the second positioning block.

Preferably, the bottom of the shell is also provided with an oil return channel, the oil return channel is also internally provided with a one-way valve, and the one-way valve is connected with an engine crankcase through an oil pipe.

Preferably, the check valve comprises a check valve upper shell and a check valve lower shell, a check valve membrane is arranged in the check valve lower shell, and a check valve rib used for being attached to the check valve membrane is arranged in the check valve upper shell.

Preferably, the side wall of the one-way valve diaphragm is further provided with a groove, and a channel for passing engine oil is formed between the inner wall of the one-way valve lower shell and the groove.

An engine, comprising an oil-gas separation device, wherein the oil-gas separation device is the oil-gas separation device.

According to the technical scheme provided by the utility model, the utility model discloses an oil-gas separation device, including the casing and with casing complex lid, wherein be provided with waste gas import on the casing, the lid is provided with exhaust outlet, is provided with in the casing and holds the chamber, wherein holds the intracavity and is provided with filtering component, and filtering component will hold the chamber and separate for first separation chamber and second separation chamber, and first separation chamber is linked together with exhaust inlet, and second separation chamber is linked together with exhaust outlet. Waste gas of an engine crankcase firstly enters a first separation cavity from a waste gas inlet, the waste gas entering the first separation cavity separates large particles in the waste gas through a filtering component, and the separated particles are accumulated on the filtering component to form oil drops which drip, so that filtering type separation is completed; the separated waste gas enters a second separation chamber and rotates at a high speed along the inner wall of the second separation chamber, the rotating waste gas generates centrifugal force, and the waste gas can be separated into particles with different sizes according to the rotating speed to complete cyclone separation; the waste gas that does not pass through filtering component collides the inner wall of first separation chamber repeatedly, accomplishes the impact separation, and through the filtration formula separation, the waste gas of rotation type separation and impact separation is from waste gas outlet discharge oil-gas separation device, and this oil-gas separation device can make oil-gas separation's more thorough, and is more high-efficient to guaranteed that the engine can economy, stable, reliable operation under big gas channeling operating mode.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of an oil-gas separation device disclosed in an embodiment of the present invention;

fig. 2 is a schematic bottom view of the oil-gas separation device disclosed in the embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view at A in FIG. 1;

FIG. 4 is a schematic cross-sectional view at B in FIG. 2;

fig. 5 is a schematic top view of the oil-gas separation device disclosed in the embodiment of the present invention.

Wherein, each part name is as follows:

100 is a shell, 101 is an exhaust gas inlet, 102 is a first separation cavity, 103 is a second separation cavity, 104 is a support column, 105 is an oil return channel, 106 is a one-way valve, 1061 is an upper shell of the one-way valve, 1061-a one-way valve rib, 1062 is a lower shell of the one-way valve, 1062-a one-way valve membrane, 1062-b is a groove, 200 is a cover body, 201 is an exhaust gas outlet, 300 is a filter assembly, 301 is a filter support, 3011 is a first positioning block, 3012 is a second positioning block, 302 is a filter screen, 3021 is a through hole.

Detailed Description

In view of this, the utility model discloses a core lies in providing an oil-gas separation device, can make more thorough of oil-gas separation, and is more high-efficient to guarantee that the engine can be economy, stable, reliable operation under big blowby gas operating mode.

Another object of the present invention is to provide an engine.

For a better understanding of the present invention, reference is made to the accompanying drawings and detailed description below, which are referred to in fig. 1 to 5.

Referring to fig. 1, an oil-gas separation device disclosed in the embodiment of the present invention includes a casing 100 and a cover 200 engaged with the casing 100, wherein the casing 100 is provided with a waste gas inlet 101, the cover 200 is provided with a waste gas outlet 201, the casing 100 is provided with a containing cavity, the containing cavity is provided with a filter assembly 300, the filter assembly 300 is to be separated into a first separation cavity 102 and a second separation cavity 103 by the containing cavity, the first separation cavity 102 is communicated with the waste gas inlet 101, and the second separation cavity 103 is communicated with the waste gas outlet 201. Waste gas of an engine crankcase firstly enters the first separation cavity 102 from the waste gas inlet 101, the waste gas entering the first separation cavity 102 separates large particles in the waste gas through the filtering component 300, and the separated particles are accumulated on the filtering component 300 to form oil drops which drop, so that filtering separation is completed; the separated waste gas enters the second separation chamber 103 and rotates at a high speed along the inner wall of the second separation chamber 103, the rotating waste gas generates centrifugal force, and the waste gas can be separated into particles with different sizes according to the rotating speed, so that the cyclone separation is completed; the waste gas that does not pass through filter assembly 300 collides the inner wall of first separation chamber 102 repeatedly, accomplishes the separation of striking formula, and through the filtration formula separation, the waste gas of rotation type separation and striking formula separation is from waste gas outlet 201 discharge oil-gas separation device, and this oil-gas separation device can make oil-gas separation's more thorough, and is more high-efficient to guaranteed that the engine can be economy, stable, reliable operation under big blow-by operating mode.

The housing 100 and the cover 200 may be connected by bolts or by welding, and in order to ensure good sealing performance, the housing 100 and the cover 200 are preferably welded by laser welding according to the embodiment of the present invention.

It should be noted that, can follow the inner wall that holds the chamber and carry out high-speed rotation after entering into holding the chamber in order to guarantee waste gas, the embodiment of the utility model discloses among the disclosed oil-gas separation device, the preferred waste gas import 101 is the tangential setting with the inside wall of casing 100.

The embodiment of the utility model provides a structure to filtering component 300 does not specifically prescribe a limit to, as long as satisfy the utility model discloses operation requirement's structure is all in the utility model discloses a within the protection scope, in order to further optimize above-mentioned implementation, please refer to fig. 2 to 3, the utility model discloses a disclosed filtering component 300 is including being used for the filtering support 301 that is connected with the inner wall that holds the chamber to and set up the filter screen 302 on filtering support 301, wherein is provided with first locating piece 3011 on filtering support 301, be provided with on the filter screen 302 be used for with first locating piece 3011 matched with first constant head tank, so set up, filtering support 301 can effectively be fixed with filter screen 302.

In order to ensure that the waste gas is separated more thoroughly and effectively, the embodiment of the present invention discloses a filtering bracket 301 which is connected to the inner wall of the casing 100 in a sealing manner, and the waste gas entering the accommodating chamber can enter the second separating chamber 103 only through the filtering net 302 after passing through the first separating chamber 102.

Of course, the utility model discloses the filter screen can be the plane filter screen, can be the curved surface filter screen, also can be for the filter screen of other shapes, for reducing the flow resistance, guarantees that more engine exhaust can filter through filter screen 302 smoothly, the utility model discloses the preferred curved surface filter screen that adopts of filter screen 302 that the embodiment discloses.

Wherein, evenly set up a plurality of through-holes 3021 that are used for engine exhaust to pass through on the filter screen 302, certainly to through-hole 3021's shape and area, the embodiment of the utility model provides a not specifically inject this, and the technical staff in the field can select according to actual need, as long as satisfy the utility model discloses operation requirement's structure is all in the utility model discloses a protect within the scope.

In order to further optimize the above-mentioned embodiment, the embodiment of the utility model discloses among the oil-gas separation device, still be provided with second locating piece 3012 on filtering support 301, still be provided with a plurality of support columns 104 along the circumference of casing 100 inner wall, still be provided with on any one of them support column 104 and be used for the second constant head tank with second locating piece 3012 matched with, can restrict the filter component 300 rotation when second locating piece 3012 is absorbed in the second constant head tank to guarantee the stability of filter component 300.

In order to avoid waste gas to get into oil-gas separation device from oil return passage, the embodiment of the utility model discloses an among the oil-gas separation device, still be provided with oil return passage 105 in casing 100 bottom, still be provided with check valve 106 in oil return passage 105, wherein check valve 106 passes through oil pipe and links to each other with the engine crankcase.

Referring to fig. 4 to 5, in particular, the check valve 106 includes a check valve upper housing 1061 and a check valve lower housing 1062, wherein a check valve membrane 1062-a is disposed in the check valve lower housing 1062, a check valve rib 1061-a for fitting with the check valve membrane 1062-a is disposed in the check valve upper housing 1061, and the exhaust gas enters the check valve 106 through the oil pipe from the engine crankcase, at this time, the check valve membrane 1062-a is jacked up to fit with the check valve rib 1061-a, and the exhaust gas cannot enter the oil-gas separation device from the oil return passage 105, so that the exhaust gas cannot be reversely flowed into the oil-gas separation device.

It should be noted that, casing 1061 and casing 1062 are fixed mutually under the check valve on the check valve, can bolted connection, also can weld, as long as satisfy the utility model discloses the structure that requires in use is all in the utility model discloses an within the protection scope, in order to guarantee joint strength, the utility model discloses casing 1061 and the connected mode of casing 1062 adopt laser welding under the disclosed check valve.

It should be further noted that the check valve diaphragm 1062-a is further provided with a groove 1062-b, a passage for passing the oil is formed between the inner wall of the check valve lower housing 1062 and the groove 1062-b, when the oil separated by the oil-gas separation device is accumulated to a certain height in the oil return passage 105, the check valve diaphragm 1062-a moves downward, and the oil flows back to the engine crankcase from the groove 1062-b of the check valve diaphragm 1062-a.

The embodiment of the utility model also discloses an engine, including oil-gas separation device, wherein oil-gas separation device is the disclosed oil-gas separation device of an arbitrary embodiment of above-mentioned.

Because above-mentioned engine has adopted the disclosed oil-gas separation device of above-mentioned embodiment, consequently, this engine has the disclosed oil-gas separation device's of above-mentioned embodiment technical advantage concurrently, the embodiment of the utility model provides an no longer describe to this repeatedly.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The oil-gas separation device is characterized by comprising a shell (100) and a cover body (200) matched with the shell (100), wherein a waste gas inlet (101) is formed in the shell (100), a waste gas outlet (201) is formed in the cover body (200), a containing cavity is formed in the shell (100), a filter assembly (300) is arranged in the containing cavity and used for separating the containing cavity from the filter assembly, the filter assembly (300) separates the containing cavity into a first separation cavity (102) and a second separation cavity (103), the first separation cavity (102) is communicated with the waste gas inlet (101), and the second separation cavity (103) is communicated with the waste gas outlet (201).

2. The oil-gas separation device according to claim 1, characterized in that the exhaust gas inlet (101) is tangentially arranged to the inner side wall of the housing (100).

3. The oil-gas separation device as claimed in claim 1, wherein the filter assembly (300) comprises a filter support (301) connected with the inner wall of the accommodating cavity, and a filter screen (302) arranged on the filter support (301), a first positioning block (3011) is arranged on the filter support (301), and a first positioning groove matched with the first positioning block (3011) is arranged on the filter screen (302).

4. Oil-gas separation device according to claim 3, characterized in that the filter holder (301) is sealingly connected to the inner wall of the housing (100).

5. The oil-gas separation device as claimed in claim 3, characterized in that the filter screen (302) is a curved filter screen protruding towards the first separation chamber (102), and a plurality of through holes (3021) for passing engine exhaust gas are uniformly formed in the filter screen (302).

6. The oil-gas separation device as claimed in claim 3, wherein a second positioning block (3012) is further arranged on the filtering support (301), a plurality of supporting columns (104) are further arranged along the circumferential direction of the inner wall of the casing (100), and a second positioning groove used for being matched with the second positioning block (3012) is further arranged on any one of the supporting columns (104).

7. The oil-gas separation device as claimed in claim 1, characterized in that an oil return channel (105) is further arranged at the bottom of the housing (100), a check valve (106) is further arranged in the oil return channel (105), and the check valve (106) is connected with an engine crankcase through an oil pipe.

8. The oil-gas separation device as claimed in claim 7, wherein the check valve (106) comprises a check valve upper housing (1061) and a check valve lower housing (1062), a check valve membrane (1062-a) is arranged in the check valve lower housing (1062), and a check valve rib (1061-a) for fitting with the check valve membrane (1062-a) is arranged in the check valve upper housing.

9. The oil-gas separation device as claimed in claim 8, characterized in that the side wall of the check valve diaphragm (1062-a) is further provided with a groove (1062-b), and a passage for oil to pass is formed between the inner wall of the check valve lower housing (1062) and the groove (1062-b).

10. An engine comprising an oil-gas separation device, the oil-gas separation device being as claimed in any one of claims 1 to 9.

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