CN209444404U - A kind of compact oil-gas pre-separation device of engine - Google Patents
A kind of compact oil-gas pre-separation device of engine Download PDFInfo
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- CN209444404U CN209444404U CN201822226236.3U CN201822226236U CN209444404U CN 209444404 U CN209444404 U CN 209444404U CN 201822226236 U CN201822226236 U CN 201822226236U CN 209444404 U CN209444404 U CN 209444404U
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Abstract
The utility model discloses a kind of compact oil-gas pre-separation devices of engine, the mounting base of tube body periphery is located at including tube body with interior cavity and ring, mounting base is used to be mounted on the body of engine, offers air hatch on body, air hatch is located between adjacent two tappet of engine；One end of tube body is provided with cover board, and the other end is provided with the air inlet being connected to cavity and air hatch；Multiple baffles are arranged at intervals in cavity, baffle and cavity constitute labyrinth type pre-separation channel, be provided with gas outlet on the tube body of cover board, the bottom in labyrinth type pre-separation channel is provided with oil return hole.Baffled in the tube body of the utility model, pre-separation effect is good；It is compact-sized, it is arranged convenient for engine peripheral element；The generation for phenomena such as directly taking gas from body, shorten the path that air-fuel mixture gas enters gs-oil separator, effectively avoiding gas condensing water droplet, emulsified machine oil, blocking air inlet pipe, it is ensured that the performance of engine.
Description
Technical field
The utility model belongs to the compact oil gas of engine oil gas pre-separation technical field more particularly to a kind of engine
Pre-separate device.
Background technique
When engine operation, some total exhaust gas enters piston and channels in crankcase.Channel to the fuel oil in crankcase
After steam and Water vapor condensation, machine oil will be made thinning, performance depreciation, if gas blowby cannot export in time, engine long-time work
Make, it is excessive to will lead to crankcase pressure, be easy to cause junction gas leakage, oil leakage phenomenon, while the power of engine can be under
Drop；If machine oil is discharged into atmosphere with exhaust gas, it can also have a negative impact to discharge, also will increase consumption of lubricating oil.This requires
Separating treatment must be carried out to crankcase gas blowby.
Currently, most oil gas preseparators or preseparating structure are set in valve mechanism cover, that is, are taken from valve mechanism cover
Gas；When air-fuel mixture gas enters the respiratory system i.e. gs-oil separator by valve mechanism cover, since pipeline moves towards complicated, distance
Far, the phenomenon that being easy to appear gas condensing water droplet, emulsified machine oil, blocking air inlet pipe generation, causes engine performance to decline, especially
This phenomenon becomes apparent in gas machine.
Utility model content
In order to overcome above-mentioned the deficiencies in the prior art, technical problem to be solved by the utility model is to provide
A kind of compact oil-gas pre-separation device of engine, can shorten the path that air-fuel mixture gas enters the respiratory system, avoid gas
Phenomena such as body condensing water droplet, emulsified machine oil, blocking air inlet pipe, occurs, it is ensured that engine performance.
In order to solve the above technical problems, the technical scheme adopted by the utility model is:, and a kind of compact of engine is oily
Gas pre-separate device, is located at the mounting base of the tube body periphery including tube body with interior cavity and ring, the mounting base be used for
The body of the engine is fixedly connected, and air hatch is offered on the body, and the air hatch is located at the phase of the engine
Between adjacent two tappets；
One end of the tube body is provided with cover board, and the other end of the tube body is provided with the air inlet being connected to the cavity
Mouthful, the air inlet is communicated with the air hatch；
Multiple baffles are arranged at intervals in the cavity, the baffle and the cavity constitute labyrinth type pre-separation channel,
It is provided with gas outlet on the tube body of the cover board, the bottom in labyrinth type pre-separation channel is provided with oil return hole.
Preferably, the end face of the tube body equipped with the air inlet is scarf.
Preferably, one end of the tube body equipped with the air inlet passes through the air hatch and extends to the engine
Tappet is intracavitary.
Preferably, the mounting base includes mounting flange, and one end of the mounting flange is equipped with annular convex platform, the annular
The peripheral ring of boss is equipped with seal groove, and the outer diameter of the annular convex platform is adapted with the bore of the air hatch.
Preferably, two baffles, respectively upstream baffle and downstream damper, the upstream are arranged at intervals in the cavity
Baffle is installed on the upper perimeter wall of the cavity close to the air inlet, and the downstream damper is installed on close to the annular convex platform
The cavity lower peripheral wall.
Preferably, there are two the oil return hole, an oil return holes for the bottom setting in labyrinth type pre-separation channel
Between two baffles, another described oil return hole is between the downstream damper and the annular convex platform, and two
A oil return hole is communicated with the tappet chamber.
Preferably, the gas outlet is set to the bottom of the tube body, and the gas outlet is equipped with escape pipe, the outlet
Pipe extends in the cavity of the tube body.
Preferably, the escape pipe includes the straight pipe being connected with the gas outlet, is connect gradually with the straight pipe
The converging transition for expanding section and connecting with the divergent segment, the straight pipe, the divergent segment and the converging transition are integrally formed.
After above-mentioned technical proposal, the beneficial effects of the utility model are:
The utility model compact oil-gas pre-separation device is mounted on the body of engine, connects body and Oil-gas Separation
Device air inlet pipe；The cavity of the multiple baffles of setting in its tube body, baffle and tube body constitutes labyrinth type pre-separation channel, can reach good
Good pre-separation effect.It is arranged with the air hatch of tube body air inlet connection in body corresponding with adjacent two tappet middle position
On, it not only can guarantee the gas stream general character, but also have enough spaces to arrange；Pipe structure is compact, beautiful convenient for engine peripheral element
Arrangement.
The utility model shortens air-fuel mixture gas and enters oil gas using gas is taken in the direct slave body of air inlet of tube body
The path of separator can effectively avoid gas condensing water droplet, emulsified machine oil, the generation for blocking phenomena such as air inlet pipe, it is ensured that hair
The performance of motivation.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model compact oil-gas pre-separation device；
Fig. 2 is the structural schematic diagram at another visual angle Fig. 1；
Fig. 3 is the cross-sectional view of A-A in Fig. 2；
Fig. 4 is the scheme of installation of the utility model compact oil-gas pre-separation device；
In figure: 1- body, 2- tappet, 3- tappet chamber, 4- air hatch, 5- tube body, 51- cavity, 52- cover board, 53- air inlet
Mouthful, 54- baffle, 55- oil return hole, 6- mounting base, 61- mounting flange, 62- annular convex platform, 63- seal groove, 7- escape pipe, 71-
Straight pipe, 72- divergent segment, 73- converging transition, 8- sealing ring.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing to this
The embodiment of utility model is described in detail.
Common shown as shown in Figure 1 to Figure 4, compact oil-gas pre-separation device is installed on the body 1 of engine, with adjacent two
Air hatch 4 is offered on the corresponding body 1 in 2 middle position of tappet.Current oil oxygen mixture is mostly enterprising from valve mechanism cover
Enter gs-oil separator, take the mode of gas more rare from body 1, when arrangement will not only consider 1 casting manufacturability of body, also by machine
The limitation of oil gas circulation area in 1 structure of body, limits the design operability of designer to a certain extent.Air hatch 4
Selection is on body 1 and is located at adjacent two tappets, 2 middle position, not only can guarantee the gas stream general character, but also can have enough spaces
Arrange preseparating structure.
The compact oil-gas pre-separation device is equivalent to the pipe fitting for having pre-separation function, including tube body 5 and ring
It is located at the mounting base 6 of 5 periphery of tube body, tube body 5 is fixed on body 1 using mounting base 6, mounting base 6 is equipped with and wears for bolt
The mounting hole crossed.The cavity 51 passed through in tube body 5 equipped with fuel feeding oxygen mixture, one end of tube body 5 is provided with cover board 52, tube body
5 other end is provided with the air inlet 53 being connected to cavity 51, which communicates with air hatch 4；Interval is set in cavity 51
Multiple baffles 54 are equipped with, baffle 54 and cavity 51 constitute labyrinth type pre-separation channel, close to the bottom setting of the tube body 5 of cover board 52
There is gas outlet, the bottom in labyrinth type pre-separation channel is provided with oil return hole 55.
In the present embodiment, the end face of the tube body 5 equipped with air inlet 53 is scarf, and scarf can be to avoid 1 wall surface of body
Machine oil flows into air inlet 53.And the one end for being equipped with the tube body 5 of air inlet 53 passes through the tappet chamber 3 that air hatch 4 extends to engine
Interior, there are gaps between tube body 5 and air hatch 4.
In the present embodiment, mounting base 6 is integral type molding structure, including mounting flange 61, one end of mounting flange 61 are set
There is annular convex platform 62, the peripheral ring of annular convex platform 62 is equipped with seal groove 63, the bore phase of the outer diameter and air hatch 4 of annular convex platform 62
Adaptation；When installation, annular convex platform 62 is protruded into air hatch 4, is realized and is tightly connected by sealing ring 8 and seal groove 63, Method for Installation
Orchid 61 is located at outside body 1 and is fixedly connected with body 1.
In the present embodiment, two baffles 54, respectively upstream baffle and downstream gear are arranged at intervals in the cavity 12 of tube body 5
Plate, upstream baffle are installed on the upper perimeter wall of the cavity 51 close to air inlet 53, and downstream damper is installed on close to annular convex platform 62
The lower peripheral wall of cavity 51.There are two oil return hole 55, an oil return holes 55 to be located at two for the bottom setting in labyrinth type pre-separation channel
Between baffle 54, another oil return hole 55 is between downstream damper and annular convex platform 62, and two oil return holes 55 are and tappet
Chamber 3 communicates.
Gas outlet is equipped with escape pipe 7, and escape pipe 7 extends in the cavity 51 of tube body 5, prevent bottom separate oil liquid from
Gas outlet outflow.Wherein escape pipe 7 includes the straight pipe 71 being connected with gas outlet, the divergent segment 72 being connect with straight pipe 71 and
The converging transition 73 connecting with divergent segment 72, straight pipe 71, divergent segment 72 and converging transition 73 are integrally formed, the escape pipe 7 of the structure
Convenient for being connected with the air inlet pipe of gs-oil separator.
Above-mentioned mounting base 6, escape pipe 7 and baffle 54 are welded and fixed with tube body 5.
Air-fuel mixture gas enters tube body 5 from tappet chamber 3, air hatch 4, and 5 Internal baffle of tube body can effective blocking portion extension set
Oil enters, and isolated machine oil flows back to tappet chamber 3 by oil return hole 55, realizes pre-separation, and gas is flowed out by escape pipe 7.
The utility model compact oil-gas pre-separation device can be good at realizing Oil-gas Separation, simplify crankcase respiratory
The overall construction of system, reduces the risk of burn oil, improves the performance of engine to a certain extent.Meanwhile it being taken from body 1
Gas shortens the path that air-fuel mixture gas enters gs-oil separator, can effectively avoid gas condensing water droplet, emulsified machine oil, blocks up
The generation for phenomena such as filling in tracheae, it is ensured that the performance of engine.And tube body 5 is compact-sized, beautiful convenient for engine peripheral element
Arrangement.
The above is the preferred embodiment of the utility model, is not intended to limit the utility model, all in this reality
With made any modification within novel spirit and principle) and wait the improvement of same compact oil-gas pre-separation device equal
It should include within the protection scope of the present utility model.
Claims (8)
1. a kind of compact oil-gas pre-separation device of engine, which is characterized in that be located at including tube body with interior cavity and ring
The mounting base of the tube body periphery, the mounting base open up on the body for being fixedly connected with the body of the engine
There is air hatch, the air hatch is located between adjacent two tappet of the engine；
One end of the tube body is provided with cover board, and the other end of the tube body is provided with the air inlet being connected to the cavity, institute
Air inlet is stated to communicate with the air hatch；
Multiple baffles are arranged at intervals in the cavity, the baffle and the cavity constitute labyrinth type pre-separation channel, close
Gas outlet is provided on the tube body of the cover board, the bottom in labyrinth type pre-separation channel is provided with oil return hole.
2. the compact oil-gas pre-separation device of engine as described in claim 1, which is characterized in that be equipped with the air inlet
The tube body end face be scarf.
3. the compact oil-gas pre-separation device of engine as claimed in claim 2, which is characterized in that be equipped with the air inlet
The tube body one end pass through the air hatch extend to the engine tappet it is intracavitary.
4. the compact oil-gas pre-separation device of engine as claimed in claim 3, which is characterized in that the mounting base includes
Mounting flange, one end of the mounting flange are equipped with annular convex platform, and the peripheral ring of the annular convex platform is equipped with seal groove, the ring
The outer diameter of shape boss is adapted with the bore of the air hatch.
5. the compact oil-gas pre-separation device of engine as claimed in claim 4, which is characterized in that interval in the cavity
There are two baffle, respectively upstream baffle and downstream damper, the upstream baffle is installed on the institute close to the air inlet for setting
The upper perimeter wall of cavity is stated, the downstream damper is installed on the lower peripheral wall of the cavity close to the annular convex platform.
6. the compact oil-gas pre-separation device of engine as claimed in claim 5, which is characterized in that the labyrinth type is divided in advance
From the setting of the bottom in channel there are two the oil return hole, an oil return hole is located between two baffles, another institute
Oil return hole is stated between the downstream damper and the annular convex platform, and two oil return holes with the tappet chamber phase
It is logical.
7. the compact oil-gas pre-separation device of engine as described in claim 1, which is characterized in that the gas outlet setting
In the bottom of the tube body, the gas outlet is equipped with escape pipe, and the escape pipe extends in the cavity of the tube body.
8. the compact oil-gas pre-separation device of engine as claimed in claim 7, which is characterized in that the escape pipe includes
The straight pipe being connected with the gas outlet, the divergent segment connecting with the straight pipe and connect tapered with the divergent segment
Section, the straight pipe, the divergent segment and the converging transition are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822226236.3U CN209444404U (en) | 2018-12-27 | 2018-12-27 | A kind of compact oil-gas pre-separation device of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822226236.3U CN209444404U (en) | 2018-12-27 | 2018-12-27 | A kind of compact oil-gas pre-separation device of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209444404U true CN209444404U (en) | 2019-09-27 |
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ID=68016424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201822226236.3U Active CN209444404U (en) | 2018-12-27 | 2018-12-27 | A kind of compact oil-gas pre-separation device of engine |
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| CN (1) | CN209444404U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266445A (en) * | 2021-06-30 | 2021-08-17 | 广西玉柴机器股份有限公司 | Engine respiratory system |
-
2018
- 2018-12-27 CN CN201822226236.3U patent/CN209444404U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266445A (en) * | 2021-06-30 | 2021-08-17 | 广西玉柴机器股份有限公司 | Engine respiratory system |
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