CN111425277B - Oil-gas separation module based on atmospheric pressure self-adjusting flow cross section - Google Patents
Oil-gas separation module based on atmospheric pressure self-adjusting flow cross section Download PDFInfo
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- CN111425277B CN111425277B CN202010242243.1A CN202010242243A CN111425277B CN 111425277 B CN111425277 B CN 111425277B CN 202010242243 A CN202010242243 A CN 202010242243A CN 111425277 B CN111425277 B CN 111425277B
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- shaped rubber
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- atmospheric pressure
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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
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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
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
Abstract
The invention relates to an oil-gas separation module based on an atmospheric pressure self-adjusting flow cross section, which comprises a pressure driving module, an execution module and a separation module, wherein the pressure driving module is connected with the execution module; the pressure driving module comprises an upper shell, a valve cover, a sealing plate, a pressure adjusting diaphragm, a spring supporting plate and a spring; the execution module comprises a connecting rod, a double-U-shaped rubber diaphragm, a pressing plate and a partition plate; according to the invention, the crankcase pressure adjusting module and the fine filtering module are integrated together, and the circulation section on the fine separating plate is adjusted by forming driving force through the pressure difference between the crankcase pressure and the atmospheric pressure. The flow speed of the crankcase blow-by gas passing through the oil-gas separation module is optimal under different blow-by gas quantities of the engine, so that high separation efficiency is ensured under the working condition of the engine.
Description
Technical Field
The invention belongs to the technical field of engines, and particularly relates to an oil-gas separation module based on an atmospheric pressure self-adjusting flow section.
Background
When the engine works, a part of exhaust gas leaks from a combustion chamber piston ring to an engine crankcase, and the exhaust gas is mixed with engine oil particles in the engine to form crankcase blowby gas. If the blow-by gas is directly discharged into the atmosphere, the atmosphere pollution can be caused; if the oil directly enters the combustion chamber, the oil content in the blow-by gas is higher, so that the carbon deposition in the combustion chamber is serious, and the power performance of the engine is reduced.
In order to avoid air pollution caused by direct discharge of crankcase blowby gas into the atmosphere and reduction of engine power performance, the engine is provided with an oil-gas separator to separate engine oil in the blowby gas.
The oil-gas separation module is used for separating engine oil in the oil-gas separator, the conventional oil-gas separator block is of a separation structure with a constant section, and the conventional oil-gas separator block can only ensure that the flow speed of the engine oil passing through the conventional oil-gas separator block is very high under a certain gas leakage amount so as to achieve a very high separation effect, so that the separation efficiency of the engine is not optimal under other gas leakage amounts.
Disclosure of Invention
The present invention is directed to solve the above problems and provide a method for adjusting the flow cross section of a fine separation plate by integrating a crankcase pressure adjustment module and a fine filtration module and using the crankcase pressure and the atmospheric pressure difference to form a driving force. The flow speed of the crankcase blow-by gas passing through the oil-gas separation module is optimal under different blow-by gas quantities of the engine, so that the oil-gas separation module based on the atmospheric pressure self-adjusting flow section has high separation efficiency under the working condition of the engine.
The invention realizes the purpose through the following technical scheme:
an oil-gas separation module based on an atmospheric pressure self-adjusting flow section comprises a pressure driving module, an execution module and a separation module, wherein the pressure driving module is connected with the execution module, and the execution module is connected with the separation module;
the pressure driving module comprises an upper shell, a valve cover, a sealing plate, a pressure adjusting diaphragm, a spring supporting plate and a spring, wherein the upper shell is arranged on the main shell, a diaphragm seat matched with the pressure adjusting diaphragm is arranged at the top of the upper shell, the sealing plate is arranged at the top of the pressure adjusting diaphragm, the spring supporting plate is arranged at the bottom of the pressure adjusting diaphragm, a guide cylinder is arranged on the upper shell below the spring supporting plate, the spring is sleeved on the guide cylinder, the upper end of the spring is connected with the spring supporting plate, the lower end of the spring is connected with the upper shell, the valve cover is arranged above the pressure adjusting diaphragm and connected with the top of the upper shell, a cover hole is formed in the top;
the execution module comprises a connecting rod, a double-U-shaped rubber diaphragm, a pressing plate and a partition plate, the upper end of the connecting rod is connected with the spring support plate, the lower end of the connecting rod is connected with the double-U-shaped rubber diaphragm, the partition plate is arranged at the bottom of the double-U-shaped rubber diaphragm, and two sides of the double-U-shaped rubber diaphragm are fixed on the fine separation plate of the separation module through the pressing plate;
the separation module includes the smart separation plate, fabric and fabric board, the smart separation plate separates main internal cavity body for cavity and side cavity down, be equipped with the aperture of a plurality of intercommunication side cavity and cavity down on the smart separation plate, be equipped with the fabric board on the left smart separation plate of aperture, be equipped with the fabric between fabric board and the smart separation plate, be equipped with the perpendicular groove that link up from top to bottom on the smart separation plate on aperture right side, the two U-shaped rubber diaphragm embedding of execution module should erect the inslot, and the left and right sides face in two U-shaped rubber diaphragm laminating perpendicular grooves.
As a further optimization scheme of the invention, the fabric is a sheet-shaped or block-shaped fabric filter material.
As a further optimized scheme of the invention, the center of the guide cylinder is a through hole, the center of the spring support plate is provided with a circular column which is in clearance fit with the guide cylinder, and the lower end of the circular column is inserted into the guide cylinder.
As a further optimized scheme of the invention, the double U-shaped rubber diaphragm is divided into two U-shaped structures by a dividing plate, and a square hole is arranged on the dividing plate.
As a further optimization scheme of the invention, the upper end of the connecting rod is connected with the lower end of the round column of the spring support plate through a first buckle.
As a further optimization scheme of the invention, the valve cover is connected with the upper shell through a second buckle.
As a further optimization scheme of the invention, the lower end of the connecting rod is provided with a notch in clearance fit with the partition plate, the middle part of the double U-shaped rubber diaphragm and the partition plate are embedded into the notch, and the connecting rod is matched with the partition plate to fix the double U-shaped rubber diaphragm.
As a further optimization scheme of the invention, the double U-shaped rubber diaphragms are fixed on the fine separation module by the pressing and holding plate.
As a further optimization scheme of the invention, the small holes on the fine separation plate are divided into a plurality of groups and are distributed in a vertically staggered manner.
The invention has the beneficial effects that:
1) the invention utilizes the pressure difference between the crankcase and the atmosphere to form driving force, and further adjusts the flow cross section of the fine separation plate, so as to achieve high separation efficiency of the engine under each air blowby quantity.
Drawings
FIG. 1 is a schematic structural diagram of the present invention in accordance with one embodiment;
fig. 2 is a schematic structural diagram of a pressure driving module according to a first embodiment of the present invention.
In the figure: the device comprises an upper shell 1, a main shell 2, a valve cover 3, a sealing plate 4, a pressure regulating diaphragm 5, a spring supporting plate 6, a spring 7, a connecting rod 8, a pressing plate 9, a double-U-shaped rubber diaphragm 10, a partition plate 11, a fine separation plate 12, a fabric 13, a fabric clamping plate 14, a small hole 20, a cover hole 21, an upper cavity 31, a lower cavity 32, a side cavity 33, a first buckle 81, a circular column 82, a guide cylinder 83 and a second buckle 84.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention; in the description of the present invention, the meaning of "plurality" or "a plurality" is two or more unless otherwise specified.
Example one
As shown in fig. 1-2, an oil-gas separation module with a self-adjusting flow cross section based on atmospheric pressure comprises a pressure driving module, an execution module and a separation module, wherein the pressure driving module is connected with the execution module, and the execution module is connected with the separation module;
the pressure driving module comprises an upper shell 1, a valve cover 3, a sealing plate 4, a pressure regulating diaphragm 5, a spring supporting plate 6 and a spring 7, wherein the upper shell 1 is arranged on a main shell 2, a diaphragm seat matched with the pressure regulating diaphragm 5 is arranged at the top of the upper shell 1, the sealing plate 4 is arranged at the top of the pressure regulating diaphragm 5, the spring supporting plate 6 is arranged at the bottom of the pressure regulating diaphragm 5, a guide cylinder 83 is arranged on the upper shell 1 below the spring supporting plate 6, the spring 7 is sleeved on the guide cylinder 83, the upper end of the spring 7 is connected with the spring supporting plate 6, the lower end of the spring 7 is connected with the upper shell 1, the valve cover 3 is arranged above the pressure regulating diaphragm 5, the valve cover 3 is connected with the top of the upper shell 1, a cover hole 21 is formed in;
the execution module comprises a connecting rod 8, a double U-shaped rubber diaphragm 10, a pressing plate 9 and a partition plate 11, the upper end of the connecting rod 8 is connected with a spring support plate 6, the lower end of the connecting rod is connected with the double U-shaped rubber diaphragm 10, the partition plate 11 is arranged at the bottom of the double U-shaped rubber diaphragm 10, and two sides of the double U-shaped rubber diaphragm 10 are fixed on a fine separation plate 12 of the separation module through the pressing plate 9;
the separation module includes accurate separation plate 12, fabric 13 and fabric board 14, accurate separation plate 12 separates main casing body 2 internal cavity for cavity 32 and side cavity 33 down, be equipped with the aperture 20 of a plurality of intercommunication side cavity 33 and cavity 32 down on the accurate separation plate 12, be equipped with fabric board 14 on the left accurate separation plate 12 of aperture 20, be equipped with fabric 13 between fabric board 14 and the accurate separation plate 12, be equipped with a vertical groove that link up from top to bottom on the accurate separation plate 12 on aperture 20 right side, execution module's two U-shaped rubber diaphragm 10 imbeds in this vertical groove, and the left and right sides face in two U-shaped rubber diaphragm 10 laminating vertical grooves.
The connecting rod 8 transmits power to the double U-shaped rubber diaphragm 10, and the double U-shaped rubber diaphragm 10 downwards or upwards plugs or opens the small hole 20 in the fine separation plate 12. The separation module comprises a fine separation plate 12, a fabric 13 and a fabric plate 14, and after the flow cross section on the fine separation plate 12 is adjusted, the blow-by gas has higher flow velocity and impacts the fabric 13, so that the machine oil in the blow-by gas is separated.
Preferably, the web 13 is a sheet or block web 13 filter.
Preferably, the center of the guide cylinder 83 is a through hole, the center of the spring support plate 6 is provided with a circular column 82 which is in clearance fit with the guide cylinder 83, and the lower end of the circular column 82 is inserted into the guide cylinder 83. The circular column 82 is matched with the guide cylinder 83 to realize the guide when the spring support plate 6 vertically moves.
Preferably, the upper cavity 31 and the lower cavity 32 separated by the driving module are formed by welding or clamping the sealing plate 4.
Preferably, the double U-shaped rubber diaphragm 10 is divided into two U-shaped structures by a dividing plate 11, and a square hole is formed on the dividing plate 11.
Preferably, the upper end of the connecting rod 8 is connected to the lower end of the circular column 82 of the spring support plate 6 by a first catch 81.
Preferably, the valve cap 3 is connected to the upper housing 1 by a second snap 84.
Preferably, the lower end of the connecting rod 8 is provided with a notch which is in clearance fit with the dividing plate 11, and the middle part of the double-U-shaped rubber diaphragm 10 and the dividing plate 11 are embedded in the notch. The connecting rod 8 is matched with the dividing plate 11 to fix the double U-shaped rubber diaphragm 10.
Preferably, the double U-shaped rubber membrane 10 is fixed on the fine separation module by a pressing plate 9, and the pressing plate 9 can be fixed on the fine separation plate 12.
Preferably, the main housing 2 of the upper housing 1 is connected to the housing of the oil separator.
Preferably, the small holes 20 on the fine separating plate 12 are divided into a plurality of groups, and are distributed in a staggered manner from top to bottom.
The invention has the structural characteristics and the working principle that: the connecting rod 8 transmits power to the double U-shaped rubber diaphragm 10, and the double U-shaped rubber diaphragm 10 downwards or upwards plugs or opens the small hole 20 in the fine separation plate 12. The separation module comprises a fine separation plate 12, a fabric 13 and a fabric plate 14, and after the flow cross section on the fine separation plate 12 is adjusted, the blowby gas has higher flow velocity to impact the fabric 13, so that the machine oil in the blowby gas is separated;
specifically, crankcase pressure is reduced, and differential pressure between the upper cavity 31 and the lower cavity 32 is increased, so that the pressure adjusting diaphragm 5 deforms downwards to push the spring support plate 6 and the connecting rod 8, the middle of the double-U-shaped rubber diaphragm 10 is pushed to move downwards, the area of the double-U-shaped rubber diaphragm 10 covering the fine separation plate 12 is increased, the small holes 20 covering the fine separation plate 12 are partially provided, the flow rate of blow-by gas is increased by reducing the flow cross section (namely the small holes 20), the blow-by gas has higher flow rate to impact the fabric 13, the machine oil in the blow-by gas is separated, and dynamic adjustment is realized.
The blow-by gas separation principle of the invention is as follows: the crankcase blowby gas enters the lower cavity 32 of the main shell 2, enters the side cavity 33 through the separation module for oil-gas separation, and the separated engine oil flows back to the engine crankcase from an oil outlet communicated with the side cavity 33;
the pressure driving module provides upward or downward power according to the change of the crankcase pressure, the power is transmitted to the execution module through the connecting rod 8, and the U-shaped rubber diaphragm in the execution module moves upward or downward, so that the small hole 20 in the fine separation plate 12 is opened or sealed, and the blowby gas passing through the crankcase of the separation module keeps high flow speed.
The pressures in the upper chamber 31, the lower chamber 32 and the side chamber 33 are P1, P2 and P3, respectively. When the engine works and P2 is less than P1, the pressure driving module is acted by atmospheric pressure to form a force F1, so that the pressure driving module overcomes the initial elastic force F2 of the spring 7 to move downwards, the small hole 20 of the fine separation plate 12 is blocked in the downward movement process, P2 is gradually raised, and F1 is reduced; the compression amount of the spring 7 is increased, and F2 is increased until F1 and F2 are balanced, the double U-shaped rubber diaphragm 10 is stabilized at a certain position, a constant cross-sectional area is formed on the fine separation plate 12, and the pressure loss of the self-pressure regulating module can be P2-P3. When the amount of blow-by gas in the crankcase is changed, P2 is changed, so that F1 is changed, the position of the double U-shaped rubber diaphragm 10 is readjusted, and finally the flow cross section of the separation module is adjusted along with the change of the amount of blow-by gas.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (9)
1. The utility model provides an oil-gas separation module based on atmospheric pressure self-interacting flow cross section which characterized in that: the pressure driving module is connected with the execution module, and the execution module is connected with the separation module;
the pressure driving module comprises an upper shell, a valve cover, a sealing plate, a pressure adjusting diaphragm, a spring supporting plate and a spring, wherein the upper shell is arranged on the main shell, a diaphragm seat matched with the pressure adjusting diaphragm is arranged at the top of the upper shell, the sealing plate is arranged at the top of the pressure adjusting diaphragm, the spring supporting plate is arranged at the bottom of the pressure adjusting diaphragm, a guide cylinder is arranged on the upper shell below the spring supporting plate, the spring is sleeved on the guide cylinder, the upper end of the spring is connected with the spring supporting plate, the lower end of the spring is connected with the upper shell, the valve cover is arranged above the pressure adjusting diaphragm and connected with the top of the upper shell, a cover hole is formed in the top;
the execution module comprises a connecting rod, a double-U-shaped rubber diaphragm, a pressing plate and a partition plate, the upper end of the connecting rod is connected with the spring support plate, the lower end of the connecting rod is connected with the double-U-shaped rubber diaphragm, the partition plate is arranged at the bottom of the double-U-shaped rubber diaphragm, and two sides of the double-U-shaped rubber diaphragm are fixed on the fine separation plate of the separation module through the pressing plate;
the separation module includes the smart separation plate, fabric and fabric board, the smart separation plate separates main internal cavity body for cavity and side cavity down, be equipped with the aperture of a plurality of intercommunication side cavity and cavity down on the smart separation plate, be equipped with the fabric board on the left smart separation plate of aperture, be equipped with the fabric between fabric board and the smart separation plate, be equipped with the perpendicular groove that link up from top to bottom on the smart separation plate on aperture right side, the two U-shaped rubber diaphragm embedding of execution module should erect the inslot, and the left and right sides face in two U-shaped rubber diaphragm laminating perpendicular grooves.
2. The atmospheric pressure self-regulated flow cross section based oil and gas separation module of claim 1, wherein: the fabric is a sheet or block fabric filter material.
3. The atmospheric pressure self-regulated flow cross section based oil and gas separation module of claim 1, wherein: the center of the guide cylinder is a through hole, a circular column in clearance fit with the guide cylinder is arranged at the center of the spring support plate, and the lower end of the circular column is inserted into the guide cylinder.
4. The atmospheric pressure self-regulated flow cross section based oil and gas separation module of claim 1, wherein: the double-U-shaped rubber diaphragm is divided into two U-shaped structures by a dividing plate, and a square hole is formed in the dividing plate.
5. The atmospheric pressure self-regulated flow cross section based oil and gas separation module of claim 1, wherein: the upper end of the connecting rod is connected with the lower end of the round column of the spring support plate through a first buckle.
6. The atmospheric pressure self-regulated flow cross section based oil and gas separation module of claim 1, wherein: the valve cover is connected with the upper shell through a second buckle.
7. The atmospheric pressure self-regulated flow cross section based oil and gas separation module of claim 1, wherein: the lower extreme of connecting rod is equipped with and cuts apart the board clearance fit's notch, and the middle part of two U-shaped rubber diaphragms and cut apart the board embedding this notch in, the connecting rod cooperation cuts apart the board and fixes two U-shaped rubber diaphragms.
8. The atmospheric pressure self-regulated flow cross section based oil and gas separation module of claim 1, wherein: the double U-shaped rubber diaphragms are fixed on the fine separation plate by the pressing plate.
9. The atmospheric pressure self-regulated flow cross section based oil and gas separation module of claim 1, wherein: the small holes on the fine separation plate are divided into a plurality of groups which are distributed in a vertically staggered manner.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010242243.1A CN111425277B (en) | 2020-03-31 | 2020-03-31 | Oil-gas separation module based on atmospheric pressure self-adjusting flow cross section |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010242243.1A CN111425277B (en) | 2020-03-31 | 2020-03-31 | Oil-gas separation module based on atmospheric pressure self-adjusting flow cross section |
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| CN111425277A CN111425277A (en) | 2020-07-17 |
| CN111425277B true CN111425277B (en) | 2021-01-08 |
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| CN112145256B (en) * | 2020-09-30 | 2021-07-23 | 泰州林阳展示设备有限公司 | Oil-gas separation valve with metal diaphragm structure |
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| DE20016214U1 (en) * | 2000-09-18 | 2002-02-07 | Hengst Walter Gmbh & Co Kg | Throttle valve for automatic regulation of the pressure in the crankcase of an internal combustion engine |
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| CN102781543A (en) * | 2010-02-05 | 2012-11-14 | 帕克汉尼芬制造(英国)有限公司 | A separator |
| CN105705739A (en) * | 2013-10-30 | 2016-06-22 | 蒂森克虏伯普利斯坦技术中心股份公司 | Controllable oil separation device |
| CN110382828A (en) * | 2017-03-20 | 2019-10-25 | 保利泰科塑料德国两合有限责任公司 | Oily separation equipment |
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2020
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08200034A (en) * | 1995-01-24 | 1996-08-06 | Nok Corp | Breather |
| DE20016214U1 (en) * | 2000-09-18 | 2002-02-07 | Hengst Walter Gmbh & Co Kg | Throttle valve for automatic regulation of the pressure in the crankcase of an internal combustion engine |
| JP2003293724A (en) * | 2002-04-03 | 2003-10-15 | Tokyo Roki Co Ltd | Crank case ventilating device |
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Address after: 230000 southwest Hengxin automobile office at the intersection of yingjiangsi road and Yulan Avenue, Taohua Industrial Park, Feixi County, Hefei City, Anhui Province Patentee after: Hefei Hengxin Power Technology Co.,Ltd. Address before: 230000 southwest Hengxin automobile office at the intersection of yingjiangsi road and Yulan Avenue, Taohua Industrial Park, Feixi County, Hefei City, Anhui Province Patentee before: HEFEI HENGXIN AUTOMOTIVE ENGINE COMPONENT MANUFACTURING Co.,Ltd. |