CN108678835B - Gas taking structure of oil-gas separator and engine - Google Patents
Gas taking structure of oil-gas separator and engine Download PDFInfo
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- CN108678835B CN108678835B CN201810270752.8A CN201810270752A CN108678835B CN 108678835 B CN108678835 B CN 108678835B CN 201810270752 A CN201810270752 A CN 201810270752A CN 108678835 B CN108678835 B CN 108678835B
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- gas
- oil
- separator
- taking
- cavity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
Abstract
The invention provides an air-gas separator air-taking structure and an engine, the air-taking structure is arranged on a cylinder body of the engine, the gas taking structure comprises an oil gas inlet, a gas taking channel and a gas taking port, wherein the gas taking channel and the gas taking port are arranged in a cylinder body, the gas taking channel comprises an oil gas pre-separation cavity and an oil gas rising cavity which are communicated with each other, the oil gas inlet is arranged at the gas inlet end of the oil gas pre-separation cavity, the gas outlet end of the oil gas pre-separation cavity is connected with the gas inlet end of the oil gas rising cavity, the gas outlet end of the oil gas rising cavity is connected with the gas taking port, the gas taking port is arranged at the upper part of the cylinder body and connected with the gas inlet of an oil-gas separator, oil gas in a crankcase can enter the oil gas pre-separation cavity through the oil gas inlet to be pre-separated, the pre-separated oil gas can rise to the. The invention integrates a pre-separation structure on the cylinder body, has high gas taking position, can reduce the oil content and improve the separation efficiency.
Description
Technical Field
The invention relates to the technical field of oil-gas separation of engines, in particular to a gas taking structure of an oil-gas separator and an engine.
background
When the existing oil-gas separator takes gas, the gas is directly taken from the position of a crankcase on an engine body and is connected with the oil-gas separator through a gas taking hole. The air taking hole is lower and is very close to the assembly surface of the crankshaft hole and the oil pan, the engine oil of the cylinder cover and the air distribution mechanism returning to the oil pan is stirred due to the movement of parts such as the crankshaft, the connecting rod and the like, the oil content in the oil gas at the position of the crankcase is very high, and the oil gas pre-separation cavity is not provided, so that the work load of the oil gas separator is high easily, and the separation efficiency is low.
Disclosure of Invention
The object of the present invention is to solve at least one of the above drawbacks and disadvantages, and is achieved by the following technical solution.
the invention provides an oil-gas separator gas taking structure which is arranged on a cylinder body of an engine and comprises an oil-gas inlet, a gas taking channel and a gas taking port, wherein the gas taking channel comprises an oil-gas pre-separation cavity and an oil-gas rising cavity which are communicated with each other, the oil-gas inlet is arranged at the gas inlet end of the oil-gas pre-separation cavity, the gas outlet end of the oil-gas pre-separation cavity is connected with the gas inlet end of the oil-gas rising cavity, the gas outlet end of the oil-gas rising cavity is connected with the gas taking port, the gas taking port is arranged at the upper part of the cylinder body and is connected with the gas inlet of the oil-gas separator, oil gas in a crankcase can enter the oil-gas pre-separation cavity through the oil-gas inlet for oil-gas pre-separation, and pre-separated oil gas can rise to the gas taking port through the oil-gas rising cavity, and enters the oil-gas separator through the gas taking port to perform oil-gas separation.
Further, the cylinder body comprises a plurality of cylinders, a first gap is formed between the cylinder sleeves arranged in the cylinders and the cylinder body, and a second gap is formed between the adjacent cylinder sleeves.
Further, oil gas in the crankcase can rise through the second gap and enter the first gap, and oil gas entering the first gap can enter the oil gas pre-separation cavity through the oil gas inlet.
Furthermore, the flow cross-sectional areas of the first gap and the second gap are smaller than the flow cross-sectional area of the oil-gas pre-separation cavity.
Further, a plurality of the oil-gas pre-separation chambers are communicated with each other along the direction of the cylinder row and are closed at the end wall of the cylinder block.
Further, the intake port is provided on the side wall of the cylinder block at a position near the top of the cylinder block.
Further, the oil-gas pre-separation cavity and the oil-gas rising cavity are formed by casting.
Furthermore, the gas taking channel formed by the oil-gas pre-separation cavity and the oil-gas rising cavity is of a casting conformal design.
The invention also provides an engine provided with the gas taking structure of the oil-gas separator.
The invention has the following advantages:
(1) the gas taking structure of the oil-gas separator provided by the invention has the advantages that the gas taking position is high, the direct gas taking from a crankcase is avoided, and the problem of low separation efficiency of the oil-gas separator due to the low gas taking position of the oil-gas separator and the high oil content in oil gas is solved.
(2) The gas taking path has a pre-separation effect besides a higher position, so that the content of large-particle oil in oil gas is further reduced; in addition, the gas taking paths are all cast, so that the space size of peripheral parts is greatly reduced, and the size of the whole machine is further reduced.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings.
FIG. 1 is a front cross-sectional view of an engine block provided with an air-oil separator air intake structure provided by an embodiment of the present invention;
FIG. 2 is a top cross-sectional view of an engine block provided in accordance with an embodiment of the present invention (i.e., a cross-sectional view A-A in FIG. 1);
FIG. 3 is a B-B cross-sectional view of the engine block of FIG. 1 (only a portion including an air intake structure shown) provided in accordance with an embodiment of the present invention.
The reference numbers in the figures are as follows:
10-cylinder block 20-cylinder sleeve
30-first gap 40-second gap
50-crankcase 1-oil gas inlet
21-oil gas pre-separation cavity 22-oil gas rising cavity
3-air intake
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Fig. 1 to 3 are schematic diagrams illustrating a gas extraction structure of an oil separator provided according to an embodiment of the present invention. The direction of the arrows in the figure is the oil and gas path. The cylinder block 10 is a main body of an engine, and connects each cylinder and a crankcase into a whole, as shown in fig. 1, the cylinder block 10 includes a plurality of cylinders, each cylinder is provided with a cylinder liner 20 therein, a first gap 30 is provided between the cylinder liner 20 and the cylinder block 10, a second gap 40 is provided between adjacent cylinder liners 20, and the crankcase 50 is installed in the middle of the cylinder block 10.
The gas taking structure of the oil-gas separator is arranged on the cylinder body 10 of the engine, and can introduce oil gas in the crankcase 50 into the oil-gas separator for oil-gas separation. This oil and gas separator structure of getting gas includes oil gas air inlet 1, set up get gas passageway and get gas port 3 in cylinder block 10, get the gas passageway and include that the oil gas that link up each other is in advance separated cavity 21 and oil gas and rise the chamber 22, oil gas air inlet 1 sets up the inlet end at oil gas pre-separated cavity 21, the end of giving vent to anger of oil gas pre-separated cavity 21 and the inlet end of oil gas rising chamber 22 are connected, the end of giving vent to anger 22 that the oil gas rises the chamber is connected with getting gas port 3, get gas port 3 and set up on the upper portion of cylinder block and be connected with oil and gas separator's air inlet, oil gas in the crankcase 50 can carry out oil gas pre-separation in getting into oil gas pre-separated cavity 21 through oil gas air inlet 1, oil gas after pre-separating can rise chamber 22 via oil gas and rise to get.
The flow cross-sectional areas of the first gap 30 and the second gap 40 are smaller than the flow cross-sectional area of the oil-gas pre-separation cavity 21, so that large-particle engine oil can be fully separated in the oil-gas pre-separation cavity 21 under the condition that the performance of a cylinder is not influenced.
In specific implementation, the gas taking port 3 is arranged on the side wall of the cylinder block 10 and close to the top of the cylinder block 10, so that gas is prevented from being directly taken from the crankcase 50, the oil content in oil gas can be reduced, the workload of a subsequent oil-gas separator is reduced, and the separation efficiency of the oil-gas separator is improved.
a plurality of oil gas preseparation chambeies 21 link up each other and close in the end wall department of cylinder block 10 along the cylinder row direction, and when oil gas got into oil gas preseparation chamber 21 through oil gas air inlet 1, because the front and back end of a plurality of oil gas preseparation chambeies 21 intercommunication organism, the space was very big, and oil gas velocity of flow descends, can separate the machine oil of the great granule in the oil gas, and the oil gas after the separation rises chamber 22 via the oil gas and rises and gets into oil and gas separator through gas intaking mouth 3. Through the pre-separation effect of the oil-gas pre-separation cavity 11, engine oil with larger particles in oil gas can be separated, the oil content in the oil gas is further reduced, and the separation efficiency of the oil-gas separator is improved. In addition, the oil-gas pre-separation cavity 21 penetrates through the front end and the rear end of the cylinder body 10, so that the smoothness of an air taking channel can be ensured.
In the preferred implementation, the gas taking channel formed by the oil-gas pre-separation cavity 21 and the oil-gas ascending cavity 22 adopts a casting conformal design, so that the size of the design of a peripheral pipeline is effectively reduced, the size of the whole machine is reduced, and the matching of the whole vehicle is facilitated. In addition, the air intake channel adopts the conformal design, is applicable to different engines, and application scope is wide.
The specific working principle of the invention is as follows:
As shown in fig. 1 to 3, the oil gas in the crankcase 50 rises into the first gap 30 between the cylinder block 10 and the cylinder liners 20 through the second gap 40 between the cylinder liners 20, and the oil gas in the crankcase 50 contains a large amount of oil, whether large-particle or small-particle oil, and when the oil gas containing a large amount of oil rises through the second gap 40 between the narrow cylinder liners 20 and the first gap 30 between the cylinder block 10 and the cylinder liners 20, the large-particle oil falls under the action of gravity to separate the large-particle oil.
The oil gas after the first separation enters the oil gas pre-separation cavity 21 through the oil gas inlet 1 for pre-separation, the pre-separated oil gas continues to enter the oil gas ascending cavity 22 through the oil gas pre-separation cavity 21, and finally ascends to the gas taking port 3 of the oil gas separator.
When oil gas enters the oil-gas preseparation cavity 21 through the oil-gas inlet 1, the oil-gas preseparation cavity 21 penetrates through the front end and the rear end of the machine body, the space is very large, the flow rate of the oil gas is reduced, the engine oil with larger particles in the oil gas is further separated, the separated oil gas rises through the oil-gas rising cavity 22 and enters the oil-gas separator through the gas taking port 3, the load of the oil-gas separator is greatly reduced, and the separation efficiency is improved.
the invention also provides an engine provided with the gas taking structure of the oil-gas separator.
The gas taking structure of the oil-gas separator provided by the invention has the advantages that the gas taking position is high, the direct gas taking from a crankcase is avoided, and the problem of low separation efficiency of the oil-gas separator due to the low gas taking position of the oil-gas separator and the high oil content in oil gas is solved.
The cylinder body provided by the invention is integrated with the oil-gas pre-separation structure, so that oil-gas pre-separation can be carried out, and the content of large-particle oil in oil gas is further reduced; in addition, the air intake channel is formed by casting, so that the space size of peripheral parts is greatly reduced, and the size of the whole machine is further reduced.
It is noted that the terms "first" and "second" are used merely to distinguish one entity or operation from another entity or operation in the description of the present invention, and do not necessarily require or imply any actual relationship or order between the entities or operations.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (7)
1. The gas taking structure of the oil-gas separator is characterized in that the gas taking structure of the oil-gas separator is arranged on a cylinder body of an engine, the cylinder body comprises a plurality of cylinders, a first gap is arranged between a cylinder sleeve arranged in each cylinder and the cylinder body, a second gap is arranged between the adjacent cylinder sleeves, the gas taking structure of the oil-gas separator comprises an oil-gas inlet, a gas taking channel arranged in the cylinder body and a gas taking port, the gas taking channel comprises an oil-gas pre-separating cavity and an oil-gas ascending cavity which are communicated with each other, the oil-gas inlet is arranged at the gas inlet end of the oil-gas pre-separating cavity, the gas outlet end of the oil-gas pre-separating cavity is connected with the gas inlet end of the oil-gas ascending cavity, the gas outlet end of the oil-gas ascending cavity is connected with the gas taking port, the gas taking port is arranged at the upper part of, oil gas in the crankcase can pass through the second gap rises to get into first gap, gets into oil gas in the first gap can pass through the oil gas air inlet gets into carry out oil gas preseparation in the oil gas preseparation chamber, oil gas after the preseparation can be via the oil gas rises the chamber and rises to get gas outlet department, and pass through get gas port entering oil and gas separator and carry out oil gas separation.
2. A gas extraction structure for an oil-gas separator as claimed in claim 1, wherein the cross-sectional flow area of the first gap and the second gap is smaller than that of the oil-gas pre-separation chamber.
3. A gas-oil separator gas extraction structure as claimed in claim 1, wherein the plurality of gas-oil pre-separation chambers are communicated with each other in a cylinder row direction and are closed at an end wall of the cylinder block.
4. A gas take structure in an oil separator according to claim 1, wherein the gas take port is provided on a side wall of the cylinder block at a position near a top of the cylinder block.
5. A gas extraction structure for a gas-oil separator as claimed in claim 1, wherein the gas-oil pre-separation chamber and the gas-oil rising chamber are both formed by casting.
6. A gas extraction structure of an oil-gas separator as claimed in claim 5, wherein the gas extraction channel formed by the oil-gas pre-separation cavity and the oil-gas ascending cavity is of a casting conformal design.
7. An engine characterized in that an oil-gas separator gas intake structure according to any one of claims 1 to 6 is provided on a cylinder block of the engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810270752.8A CN108678835B (en) | 2018-03-29 | 2018-03-29 | Gas taking structure of oil-gas separator and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810270752.8A CN108678835B (en) | 2018-03-29 | 2018-03-29 | Gas taking structure of oil-gas separator and engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108678835A CN108678835A (en) | 2018-10-19 |
| CN108678835B true CN108678835B (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810270752.8A Active CN108678835B (en) | 2018-03-29 | 2018-03-29 | Gas taking structure of oil-gas separator and engine |
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| CN (1) | CN108678835B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020124471A1 (en) * | 2018-12-20 | 2020-06-25 | 潍柴动力股份有限公司 | Engine body and engine |
| CN111963275B (en) * | 2020-09-04 | 2024-03-29 | 广西玉柴机器股份有限公司 | Side oil-gas separator with preseparation function |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061850A (en) * | 2012-12-26 | 2013-04-24 | 重庆长安汽车股份有限公司 | Crankcase ventilation oil returning structure |
| CN203640806U (en) * | 2013-12-20 | 2014-06-11 | 丰田自动车株式会社 | Oil separator |
| CN206000638U (en) * | 2016-09-06 | 2017-03-08 | 浙江吉利罗佑发动机有限公司 | A kind of gas oil separation structure being integrated within engine cylinder cover |
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2018
- 2018-03-29 CN CN201810270752.8A patent/CN108678835B/en active Active
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| CN108678835A (en) | 2018-10-19 |
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