CN201554526U - Oil gas separation device in engine crankcase - Google Patents
Oil gas separation device in engine crankcase Download PDFInfo
- Publication number
- CN201554526U CN201554526U CN2009202074235U CN200920207423U CN201554526U CN 201554526 U CN201554526 U CN 201554526U CN 2009202074235 U CN2009202074235 U CN 2009202074235U CN 200920207423 U CN200920207423 U CN 200920207423U CN 201554526 U CN201554526 U CN 201554526U
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- Prior art keywords
- oil
- separation
- gas
- disengagement chamber
- oil gas
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- Expired - Fee Related
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Abstract
The utility model provides an oil gas separation device in an engine crankcase, which is formed by connecting an upper casing and a lower casing into a whole, a separation cavity is formed between the upper casing and the lower casing, the top portion of the separation cavity is connected with an air outlet pipe, and the bottom of the separation cavity is connected with an engine oil outlet. The separation cavity is spaced into at least two small separation cavities which are parallel and share the same wall, the upper portion of each small separation cavity is in a straight tube shape, and the lower portion is a conical tube which is gradually reduced downwards, and a mixed gas inlet is arranged on the lateral wall of the straight tube shape part on the upper portion of each small separation cavity, and is connected in a beveling mode. The oil gas separation device adopts the structure form that a general big oil gas separation cavity is designed into a plurality of parallel small separation cavities, mixed gas enters a plurality of small oil steam separation cavities to do centrifugal motion, air current respectively spirally rotates in the oil gas separation cavities so as to separate oil and gas, and then, the oil gas separation efficiency can be improved more effectively without increasing the overall volume of the oil gas separator.
Description
Technical field
The utility model relates to the gas oil separation structure in a kind of engine crankcase.
Background technique
At present, the big discharge capacity high-speed gasoline engine of automobile is more and more higher to the requirement of emission request, specific power, bursting pressure, and the crankcase ventilation system of vehicular engine has the restriction of enclosed space, and the exhaust gas cleaning degree of petrol engine is had higher requirement.The gas oil separation structure of existing engine crankshaft ventilation system adopts mazy type more and is integrated in the cylinder head, mixed gas stops by maze partition plates, the passive separation oil and gas of energy, but can produce bigger power loss, Oil-gas Separation efficient is not high, and this need just to propose the higher force ventilated deaerator of enclosed of a kind of Oil-gas Separation efficient.
The patent No. is that the patent document of ZL 200620110495.4 discloses the deaerator in a kind of engine crankshaft ventilation system.The shell of this deaerator is to be combined into by upper shell 52, lower shell body 56, combi inlet port 51 is positioned at the side of upper shell 52, gas outlet 54 is arranged on the top of upper shell 52, machine oil outlet 55 is provided with eddy flow guide plate 53 over against combi inlet port 51 in the bottom of lower shell body 56 in housing.Mixed gas enters cavity through deaerator import 51 and does centrifugal motion, and air-flow is type rotation separation oil and gas in the shape of a spiral, and isolated gas is flowed out by gas outlet 54, and isolated machine oil passes back into oil pan by machine oil outlet 55.This structure is owing to adopted the form of a whole cavity, under the situation of same air inflow, the cavity volume design is too little, can not satisfy the air inflow requirement, if cavity design gets too big, can reduce air-flow velocity again, influence separating effect, so still there is the not high enough defective of Oil-gas Separation efficient in this structure.
Summary of the invention
The purpose of this utility model is to provide the gas and oil separating plant in a kind of engine crankcase at the problem of prior art existence, to improve Oil-gas Separation efficient.
For solving the problems of the technologies described above, the technological scheme that the utility model adopted is as follows:
Gas and oil separating plant in a kind of engine crankcase, it adopts upper shell and lower shell body to connect as one formation, forms disengagement chamber in the middle of upper shell and the lower shell body, and the top of disengagement chamber is connected to steam outlet pipe, and the bottom of disengagement chamber is connected to the machine oil outlet.Described disengagement chamber is separated into the little disengagement chamber of at least two arranged side by side and common walls, the top of each little disengagement chamber is straight tubular, the conically shaped of bottom for dwindling downwards gradually, mixed gas inlet is arranged on the sidewall of each straight cylindrical portion in little separation top, inserts in the mode of cutting sth. askew.
For the gas and oil separating plant of vortex type, under the situation that equates air inflow, the Oil-gas Separation efficient of a plurality of disengagement chambers is than the Oil-gas Separation efficient height of a disengagement chamber, and the structure size of disengagement chamber should be according to the flow of mixed gas, and gas pressure is designed.Simultaneously, for the gas and oil separating plant of a disengagement chamber is under the constant situation of air inflow, the volume that increases disengagement chamber can not improve Oil-gas Separation efficient, this be because excessive increase the volume of disengagement chamber mixed gas formed air whirl flow velocity in disengagement chamber is reduced, the centrifugal force deficiency can reduce Oil-gas Separation efficient on the contrary.Therefore, the utility model has adopted a plurality of little disengagement chamber structural types arranged side by side that are designed to a common big Oil-gas Separation chamber, the import of mixed gas by gas and oil separating plant enters a plurality of little Oil-gas Separation chambeies and does centrifugal motion, air-flow is type rotation separation oil and gas in the shape of a spiral in the Oil-gas Separation chamber respectively, like this, under the situation that does not increase the deaerator overall volume, more can effectively improve Oil-gas Separation efficient.
Description of drawings
Fig. 1 is the general structure schematic representation of this gas and oil separating plant.
Fig. 2 is the structural representation of upper shell.
Fig. 3 is the structural representation of lower shell body.
Fig. 4 is the sectional view of this gas and oil separating plant.
Fig. 5 is the layout of general plan of this gas and oil separating plant in engine crankshaft ventilation system.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the shell of this gas and oil separating plant is to be combined into by upper shell 1, lower shell body 3, and two cylindrical cavities are arranged respectively in upper shell and the lower shell body, and the cylindrical cavity in the upper shell is corresponding one by one with the cylindrical cavity of lower shell body.Upper and lower casing is assembled together and forms two little Oil-gas Separation chambeies 10.Little disengagement chamber top is straight tubular, the conically shaped of bottom for dwindling downwards gradually; Two cylindrical cavity tops at upper shell communicate.Steam outlet pipe 2 is positioned at the upper shell top, and its inner hollow is communicated with the cavity of upper shell.Two cylindrical cavity bottoms in the lower shell body are communicated with.Machine oil pipe 6 is positioned at the bottom of lower shell body 3, and its inner hollow is communicated with the bottom of lower shell body.Mixed gas inlet 4 is positioned at the sidewall of the straight cylindrical portion of disengagement chamber, inserts each little disengagement chamber respectively in the mode of cutting sth. askew.Upper and lower casing can be fixed by the form of welding.This deaerator by the position structure on the lower shell body 37 by being bolted on the engine body.
For improving the Placement of upper and lower casing, can adopt the high frequency weldering.As Fig. 2 and shown in Figure 4, all have the annular groove 9 of depression on 3 liang of mating faces of the upper shell 1 of gas and oil separating plant and lower shell body.As shown in Figure 5, in upper and lower casing is assembled together two annular grooves, 9 formed concave surfaces, toroidal inductive ring 8 is installed.Inductance loop 8 is generally materials such as iron, aluminium, stainless steel.This deaerator is by the high frequency welding upper and lower casing to be welded as a whole.
As shown in Figure 5, the layout of this gas and oil separating plant 12 in crankcase ventilation system is termination valve mechanism cover 11 before the combi inlet port, mixed gas enters the Oil-gas Separation chamber, after the little disengagement chamber of in deaerator each separates, gas makes progress away, machine oil is towards dirty, mixed gas is after separate in deaerator two Oil-gas Separation chambeies, the steam outlet pipe 2 of wherein isolated gas by the top taps into the gas manifold through pressure regulator valve 14 and burns once more, and isolated machine oil is back to oil pan 13 through machine oil outlet 6.16 is air-strainer among the figure, the 15th, and throttle body.
Claims (2)
1. the gas and oil separating plant in the engine crankcase, comprise upper shell (1) and lower shell body (3), upper shell (1) and lower shell body (3) connect as one, the middle disengagement chamber that forms, the top of disengagement chamber is connected to steam outlet pipe (2), and the bottom of disengagement chamber is connected to machine oil outlet (6); It is characterized in that described disengagement chamber is arranged side by side and little disengagement chamber (10) formation wall altogether by at least two, described little disengagement chamber top is straight tubular, the conically shaped of bottom for dwindling downwards gradually; On the sidewall of the straight tubular score in the top of each little disengagement chamber, cut sth. askew and be connected to mixed gas inlet (4).
2. according to the gas and oil separating plant in the described engine crankcase of claim 1, it is characterized in that, the connection part of described upper and lower casing is provided with corresponding circular pit (9), and perception ring (8) is housed in circular pit (9), and upper and lower casing adopts the high frequency weldering to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202074235U CN201554526U (en) | 2009-11-30 | 2009-11-30 | Oil gas separation device in engine crankcase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202074235U CN201554526U (en) | 2009-11-30 | 2009-11-30 | Oil gas separation device in engine crankcase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201554526U true CN201554526U (en) | 2010-08-18 |
Family
ID=42614208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202074235U Expired - Fee Related CN201554526U (en) | 2009-11-30 | 2009-11-30 | Oil gas separation device in engine crankcase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201554526U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454082A (en) * | 2014-12-18 | 2015-03-25 | 重庆小康工业集团股份有限公司 | Cyclone type oil-gas separator |
| CN113944818A (en) * | 2021-10-19 | 2022-01-18 | 翟国峰 | Gas flow speed increasing device |
-
2009
- 2009-11-30 CN CN2009202074235U patent/CN201554526U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454082A (en) * | 2014-12-18 | 2015-03-25 | 重庆小康工业集团股份有限公司 | Cyclone type oil-gas separator |
| CN113944818A (en) * | 2021-10-19 | 2022-01-18 | 翟国峰 | Gas flow speed increasing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20121130 |