CN110925054A - Clutch cover with ventilation function and engine - Google Patents
Clutch cover with ventilation function and engine Download PDFInfo
- Publication number
- CN110925054A CN110925054A CN201911282517.3A CN201911282517A CN110925054A CN 110925054 A CN110925054 A CN 110925054A CN 201911282517 A CN201911282517 A CN 201911282517A CN 110925054 A CN110925054 A CN 110925054A
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- CN
- China
- Prior art keywords
- channel
- clutch cover
- oil
- clutch
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
- F01M13/0405—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil arranged in covering members apertures, e.g. caps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
- F02F7/0068—Adaptations for other accessories
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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
- F01M2013/0038—Layout of crankcase breathing systems
- F01M2013/005—Layout of crankcase breathing systems having one or more deoilers
- F01M2013/0061—Layout of crankcase breathing systems having one or more deoilers having a plurality of deoilers
- F01M2013/0072—Layout of crankcase breathing systems having one or more deoilers having a plurality of deoilers in series
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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
- F01M2013/0422—Separating oil and gas with a centrifuge device
-
- 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
- F01M2013/0461—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a labyrinth
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a clutch cover with a ventilation function and an engine, comprising a clutch cover body and a communication channel which is arranged on the clutch cover body and is used for being communicated with an oil-gas separation cavity in a box body; the inlet end of the communication passage is arranged on the side, close to the clutch, of the clutch cover body; the oil-gas separator is favorable for preliminary separation of oil and gas, improves the oil-gas separation effect, is favorable for avoiding oil injection phenomenon, is favorable for properly reducing the volume of a labyrinth separation cavity on the box body, further reduces the volume of the crankcase body, and is favorable for reducing the weight of an engine.
Description
Technical Field
The invention relates to the field of oil-gas separation of engines, in particular to a clutch cover with a ventilation function and an engine.
Background
An engine is a machine that can convert other forms of energy into mechanical energy, such as an internal combustion engine that typically converts chemical energy into mechanical energy. When the engine works, a part of mixed gas and waste gas always flow into the crankcase through a gap between the piston ring and the cylinder wall, a gap between the piston ring and a cut, and the like, so that the crankcase of the engine is provided with a ventilation system, and the mixed gas flowing into the crankcase is guided to an air inlet pipe of the engine and is sucked into a cylinder for combustion. The existing internal combustion engine waste gas maze air vent is designed on the wall of the crankcase body, not only has no preliminary oil-gas separation effect, but also generally sets at least three stages and more than three stages for ensuring better oil-gas separation effect, so that each chamber of the engine maze needs to be designed with larger volume, otherwise, oil injection phenomenon easily occurs.
In view of the above problems, the present invention provides a clutch cover having a ventilation function and an engine. This clutch case with function of ventilating does benefit to the initial separation to oil gas, improves the oil-gas separation effect, does benefit to and avoids the oil spout phenomenon to take place, does benefit to the maze separation chamber volume that can be suitable on the reduction box, and then reduces crankcase volume, does benefit to the engine and subtracts heavy.
Disclosure of Invention
In view of the above, the invention provides a clutch cover with a ventilation function and an engine, which are beneficial to preliminary separation of oil and gas, improve oil-gas separation effect, avoid oil injection phenomenon and properly reduce the volume of a labyrinth separation cavity on a box body, further reduce the volume of a crankcase body and reduce the weight of the engine.
The clutch cover with the ventilation function comprises a clutch cover body and a communication channel which is arranged on the clutch cover body and is used for being communicated with an oil-gas separation cavity in a box body; the inlet end of the communication passage is arranged on the side, close to the clutch, of the clutch cover body; the clutch cover body is arranged above the clutch, and is favorable for forming a rotary oil-gas airflow at the end, close to the clutch cover body, of the clutch when the clutch rotates at a high speed, so that oil-gas is primarily separated under the action of centrifugal force, the separated oil is thrown to the inner wall of the box body under the action of centrifugal force, and the oil-gas after primary separation enters a connecting channel of the box body through a communicating channel and enters second and third oil-gas separation cavities of the box body to further separate the oil-gas; the oil-gas separator is favorable for preliminary separation of oil and gas, improves the oil-gas separation effect, avoids oil injection phenomenon, and is favorable for properly reducing the volume of a labyrinth separation cavity on the box body, further reducing the volume of the crankcase body and being favorable for weight reduction of an engine.
Furthermore, the communication channel is a labyrinth communication channel consisting of a first channel, a second channel and a third channel which are sequentially communicated; the inlet end of the first channel is arranged close to the center of the clutch cover body, and the outlet end of the third channel is communicated with an oil-gas separation cavity in the box body; after the primary oil-gas separation is carried out on the convoluted oil-gas airflow formed when the clutch rotates at a high speed under the action of centrifugal force, the convoluted oil-gas airflow smoothly enters the labyrinth communicating channel and further enters the connecting channel of the box body and the second-stage and third-stage oil-gas separation cavities of the box body to further separate oil and gas; the center of the position is the same as the axis of a crankshaft driving the clutch to rotate;
further, the first channel is of a groove structure arranged along the axial direction and comprises a first channel II and a first channel I close to the groove opening end of the groove structure, the outlet end of the first channel I is communicated with the inlet end of the first channel II, and the outlet end of the first channel II is positioned on the side, far away from the center of the clutch cover body, of the first channel II; the first channel I and the first channel II form a groove structure, the first channel I is positioned at the groove opening end, the inlet end of the first channel is the inlet end of the first channel I, the groove bottom of the first channel is the groove bottom of the first channel II, the outlet end of the first channel is the outlet end of the first channel II, and the outlet end of the first channel II is positioned at the groove wall of the first channel II, which is far away from the center side of the clutch cover body; the further oil-gas separation of the convoluted oil-gas entering the first channel is facilitated, and the separated oil flows back to the box body along the groove wall; the axial direction is the axial direction of a crankshaft which drives the clutch to rotate;
further, the cross-sectional area of the first channel I is larger than that of the first channel II; the air input of the first channel is increased, and the cyclone oil-gas airflow formed when the clutch rotates at high speed can smoothly enter the first channel after preliminary oil-gas separation under the action of centrifugal force and can be further subjected to oil-gas separation in the first channel;
further, an arc transitional connection is directly formed between the inlet end of the first channel I, which is close to the center side of the clutch cover body, and the inlet end of the first channel II on the same side; preferably, the inlet end of the first channel I at the corresponding side is linearly connected with the inlet end of the first channel II and is in arc transition at the connection part; the device is further beneficial to the smooth entering of the convoluted oil-gas airflow formed when the clutch rotates at a high speed into the first channel after the initial oil-gas separation is carried out on the convoluted oil-gas airflow under the action of centrifugal force;
further, the second channel is arranged along the radial direction and is communicated with the outlet end of the first channel II; the second channel is perpendicular to the first channel, so that the oil gas is favorably further separated while the oil gas discharge fluency is kept; the radial direction is the same as that of a crankshaft driving the clutch to rotate;
further, the third channel is axially arranged in the peripheral wall of the clutch cover body, and the outlet end of the third channel is communicated with the oil-gas separation cavity in the box body through an axial channel arranged in the box body; the third channel and the second channel are vertically arranged, so that the smoothness of oil gas discharge is favorably kept, and the structural layout is favorably realized; the axial direction is the axial direction of a crankshaft which drives the clutch to rotate;
furthermore, the communicating channel and the control rod hole of the clutch are mutually independent, so that the structure layout is facilitated, and the interference with the control rod hole of the clutch is avoided.
The invention also provides an engine, wherein the engine is provided with the clutch cover with the ventilation function.
The invention has the beneficial effects that: the clutch cover with the ventilation function and the engine are beneficial to forming a rotary oil-gas airflow at the end, close to the clutch cover body, of the clutch when the clutch rotates at a high speed, so that oil gas is primarily separated under the action of centrifugal force, the separated oil is thrown to the inner wall of the box body under the action of centrifugal force, the primarily separated oil gas enters the connecting channel of the box body through the communicating channel and enters the second-stage oil-gas separation cavity and the third-stage oil-gas separation cavity of the box body to further separate the oil gas, the primary separation of the oil gas is facilitated, the oil-gas separation effect is improved, the oil injection phenomenon is avoided, the volume of a labyrinth separation cavity on the box body can be properly reduced, the volume of a crankcase body is further reduced, and the weight reduction of the.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic illustration of the engine configuration of the present invention;
FIG. 2 is a schematic view taken from the direction A-A of FIG. 1;
fig. 3 is a schematic structural diagram of the present invention.
Detailed Description
Fig. 1 is a schematic structural view of an engine of the present invention, fig. 2 is a schematic view of the direction a-a of fig. 1, and fig. 3 is a schematic structural view of the present invention, as shown in the drawings: the clutch cover with the ventilation function of the embodiment comprises a clutch cover body 1 and a communication channel which is arranged on the clutch cover body 1 and is used for communicating with an oil-gas separation cavity in a box body 5; the inlet end of the communication passage is arranged on the side of the clutch cover body 1 close to the clutch 6; the clutch cover body 1 is arranged above the clutch 6, and is beneficial to forming a rotary oil-gas airflow at the end, close to the clutch cover body 1, of the clutch 6 when the clutch 6 rotates at a high speed, so that oil-gas is primarily separated under the action of centrifugal force, the separated oil is thrown to the inner wall of the box body 5 under the action of centrifugal force, and the primarily separated oil-gas enters the connecting channel 51 of the box body 5 through the communicating channel and enters the second-stage oil-gas separation cavity and the third-stage oil-gas separation cavity of the box body 5 to further separate the oil-gas; do benefit to the preliminary separation to oil gas, improve the oil-gas separation effect, avoid the oil spout phenomenon to take place, and do benefit to can be appropriate reduce the labyrinth separation chamber volume on the box 5, and then reduce bent axle box 5 volume, do benefit to the engine and subtract heavy.
In this embodiment, the communicating channel is a labyrinth communicating channel composed of a first channel 2, a second channel 3 and a third channel 4 which are sequentially communicated; the inlet end of the first channel 2 is arranged close to the center of the clutch cover body 1, and the outlet end of the third channel 4 is communicated with an oil-gas separation cavity in the box body 5; after the primary oil-gas separation is carried out on the convoluted oil-gas airflow formed when the clutch 6 rotates at a high speed under the action of centrifugal force, the convoluted oil-gas airflow smoothly enters the labyrinth communicating channel and further enters the connecting channel 51 of the box body 5 and the second-stage and third-stage oil-gas separation cavities of the box body 5 to further separate oil and gas; the center of the shaft is the same as the axis of a crankshaft 7 which drives a clutch 6 to rotate.
In this embodiment, the first channel 2 is a groove structure arranged along the axial direction and includes a first channel II22 and a first channel I21 close to a groove end of the groove structure, an outlet end of the first channel I21 is communicated with an inlet end of the first channel II22, and an outlet end of the first channel II22 is located on a side, far away from the center of the clutch cover body 1, of the first channel II 22; the first channel I21 and the first channel II22 form a groove structure, the first channel I21 is positioned at the groove opening end, the inlet end of the first channel 2 is the inlet end of the first channel I21, the groove bottom of the first channel 2 is the groove bottom of the first channel II22, the outlet end of the first channel 2 is the outlet end of the first channel II22, and the outlet end of the first channel II22 is positioned at the groove wall of the first channel II22, which is far away from the center side of the clutch cover body 1; the further oil-gas separation of the convoluted oil-gas entering the first channel is facilitated, and the separated oil flows back to the tank body 5 along the tank wall; the axial direction here corresponds to the axial direction of the crankshaft 7 which drives the clutch 6 in rotation.
In the embodiment, the cross-sectional area of the first passage I21 is larger than that of the first passage II 22; the air input of the first channel 2 is increased, and the cyclone oil-gas airflow formed when the clutch 6 rotates at a high speed smoothly enters the first channel 2 after primary oil-gas separation under the action of centrifugal force and further oil-gas separation is performed in the first channel 2.
In the embodiment, an arc transitional connection is directly formed between the inlet end of the first channel I21 close to the center side of the clutch cover body 1 and the inlet end of the first channel II22 on the same side; preferably, the inlet end of the first channel I21 on the corresponding side is linearly connected with the inlet end of the first channel II22 and is in arc transition at the connection; the cyclone oil-gas separator is further beneficial to the cyclone oil-gas airflow formed when the clutch 6 rotates at a high speed to enter the first channel 2 smoothly after the cyclone oil-gas airflow is subjected to preliminary oil-gas separation under the action of centrifugal force.
In this embodiment, the second passage 3 is radially arranged and communicated with the outlet end of the first passage II 22; the second channel 3 is perpendicular to the first channel 2, so that oil and gas can be further separated while the smoothness of oil and gas discharge is kept; here in the radial direction of the crankshaft 7 which drives the clutch 6 in rotation.
In this embodiment, the third channel 4 is axially arranged in the peripheral wall of the clutch cover body 1, and the outlet end of the third channel 4 is communicated with the oil-gas separation cavity in the box body 5 through an axial channel 51 arranged in the box body 5; the third channel 4 is perpendicular to the second channel 3, so that the smoothness of oil gas discharge is kept, and the structural layout is facilitated; the axial direction here corresponds to the axial direction of the crankshaft 7 which drives the clutch 6 in rotation.
In this embodiment, the communication passage and the lever hole 8 of the clutch 6 are provided independently of each other, which is advantageous for structural layout and avoidance of interference with the lever hole 8 of the clutch.
The present embodiment also provides an engine having the clutch cover with the ventilation function as described above.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (9)
1. A clutch cover having a ventilation function, characterized in that: the clutch cover comprises a clutch cover body and a communication channel which is arranged on the clutch cover body and is used for being communicated with an oil-gas separation cavity in a box body; the inlet end of the communication passage is disposed on a clutch cover body side close to the clutch.
2. The clutch cover with a ventilation function according to claim 1, characterized in that: the communication channel is a labyrinth communication channel consisting of a first channel, a second channel and a third channel which are sequentially communicated; the inlet end of the first channel is arranged close to the center of the clutch cover body, and the outlet end of the third channel is communicated with an oil-gas separation cavity in the box body.
3. The clutch cover with a ventilation function according to claim 2, characterized in that: the first channel is of a groove structure arranged along the axial direction and comprises a first channel II and a first channel I close to the groove opening end of the groove structure, the outlet end of the first channel I is communicated with the inlet end of the first channel II, and the outlet end of the first channel II is located on the side, far away from the center of the clutch cover body, of the first channel II.
4. The clutch cover with a ventilation function according to claim 3, characterized in that: the cross-sectional area of the first channel I is larger than that of the first channel II.
5. The clutch cover with a ventilation function according to claim 4, characterized in that: and an arc transitional connection is directly formed between the inlet end of the first channel I, which is close to the center side of the clutch cover body, and the inlet end of the first channel II on the same side.
6. The clutch cover with a ventilation function according to claim 4, characterized in that: the second channel is arranged along the radial direction and is communicated with the outlet end of the first channel II.
7. The clutch cover with a ventilation function according to claim 2, characterized in that: the third channel is axially arranged in the peripheral wall of the clutch cover body, and the outlet end of the third channel is communicated with the oil-gas separation cavity in the box body through an axial channel arranged in the box body.
8. The clutch cover with a ventilation function according to claim 1, characterized in that: the communication channel and the control rod hole of the clutch are mutually independent.
9. An engine, characterized in that: the engine has the clutch cover with the breather function according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911282517.3A CN110925054A (en) | 2019-12-13 | 2019-12-13 | Clutch cover with ventilation function and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911282517.3A CN110925054A (en) | 2019-12-13 | 2019-12-13 | Clutch cover with ventilation function and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110925054A true CN110925054A (en) | 2020-03-27 |
Family
ID=69859628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911282517.3A Pending CN110925054A (en) | 2019-12-13 | 2019-12-13 | Clutch cover with ventilation function and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110925054A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE383605C (en) * | 1922-06-18 | 1923-10-30 | Stock Motorpflug A G | Ventilation device on internal combustion engines |
| CN2621224Y (en) * | 2003-06-05 | 2004-06-23 | 三阳工业股份有限公司 | Improved engine oil recovery device |
| JP2005090375A (en) * | 2003-09-18 | 2005-04-07 | Fuji Heavy Ind Ltd | Engine lubricating device |
| JP2005282582A (en) * | 1999-01-25 | 2005-10-13 | Briggs & Stratton Corp | Four-stroke internal combustion engine |
| EP1895136A1 (en) * | 2005-06-23 | 2008-03-05 | HONDA MOTOR CO., Ltd. | Gas-liquid separation device for engine |
| CN101539065A (en) * | 2009-04-14 | 2009-09-23 | 力帆实业(集团)股份有限公司 | Motorcycle crankcase cover structure |
| CN103850754A (en) * | 2012-12-07 | 2014-06-11 | 光阳工业股份有限公司 | Blow-by gas mechanism of engine |
| CN104343495A (en) * | 2013-08-02 | 2015-02-11 | 本田技研工业株式会社 | Ventilating structure of internal combustion engine |
| CN204371981U (en) * | 2014-12-16 | 2015-06-03 | 四川兆润摩托车制造有限公司 | A kind of engine for motorcycle clutch cover |
| CN105781673A (en) * | 2014-12-26 | 2016-07-20 | 光阳工业股份有限公司 | Structure of internal combustion engine |
| WO2018114815A1 (en) * | 2016-12-22 | 2018-06-28 | Mahle International Gmbh | Coupling element of a crankcase ventilation device |
| US20190226370A1 (en) * | 2018-01-25 | 2019-07-25 | Toyota Boshoku Kabushiki Kaisha | Oil mist separator |
| CN110219965A (en) * | 2019-03-25 | 2019-09-10 | 陕西法士特齿轮有限责任公司 | A kind of flush type ventilation plug structure and method for exhausting |
-
2019
- 2019-12-13 CN CN201911282517.3A patent/CN110925054A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE383605C (en) * | 1922-06-18 | 1923-10-30 | Stock Motorpflug A G | Ventilation device on internal combustion engines |
| JP2005282582A (en) * | 1999-01-25 | 2005-10-13 | Briggs & Stratton Corp | Four-stroke internal combustion engine |
| CN2621224Y (en) * | 2003-06-05 | 2004-06-23 | 三阳工业股份有限公司 | Improved engine oil recovery device |
| JP2005090375A (en) * | 2003-09-18 | 2005-04-07 | Fuji Heavy Ind Ltd | Engine lubricating device |
| EP1895136A1 (en) * | 2005-06-23 | 2008-03-05 | HONDA MOTOR CO., Ltd. | Gas-liquid separation device for engine |
| CN101539065A (en) * | 2009-04-14 | 2009-09-23 | 力帆实业(集团)股份有限公司 | Motorcycle crankcase cover structure |
| CN103850754A (en) * | 2012-12-07 | 2014-06-11 | 光阳工业股份有限公司 | Blow-by gas mechanism of engine |
| CN104343495A (en) * | 2013-08-02 | 2015-02-11 | 本田技研工业株式会社 | Ventilating structure of internal combustion engine |
| CN204371981U (en) * | 2014-12-16 | 2015-06-03 | 四川兆润摩托车制造有限公司 | A kind of engine for motorcycle clutch cover |
| CN105781673A (en) * | 2014-12-26 | 2016-07-20 | 光阳工业股份有限公司 | Structure of internal combustion engine |
| WO2018114815A1 (en) * | 2016-12-22 | 2018-06-28 | Mahle International Gmbh | Coupling element of a crankcase ventilation device |
| US20190226370A1 (en) * | 2018-01-25 | 2019-07-25 | Toyota Boshoku Kabushiki Kaisha | Oil mist separator |
| CN110219965A (en) * | 2019-03-25 | 2019-09-10 | 陕西法士特齿轮有限责任公司 | A kind of flush type ventilation plug structure and method for exhausting |
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