CN201610778U - Structure of air exchange device of engine - Google Patents
Structure of air exchange device of engine Download PDFInfo
- Publication number
- CN201610778U CN201610778U CN2010203020517U CN201020302051U CN201610778U CN 201610778 U CN201610778 U CN 201610778U CN 2010203020517 U CN2010203020517 U CN 2010203020517U CN 201020302051 U CN201020302051 U CN 201020302051U CN 201610778 U CN201610778 U CN 201610778U
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- crankcase body
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a structure of an air exchange device of engine. A crankshaft box body of the engine is provided with a ventilation chamber which is internally provided with a baffle plate. The baffle plate divides the ventilation chamber to a first chamber and a second chamber which are communicated. The first chamber is provided with an exhaust chamber at the middle part. The upper end of the exhaust chamber is covered by a ventilation sheet. The bottom end of the exhaust chamber is provided with a first oil return hole which is communicated with an oil storage chamber of the crankshaft box body. The exhaust chamber is communicated with an inner chamber of the crankshaft box body through a ventilation passage which is provided transversely. The bottom end of the second chamber is provided with a second oil return hole which is communicated with an oil storage chamber of the crankshaft box body. The second chamber is communicated with a combustion chamber of engine through an exhaust pipe. The upper end of the ventilation chamber is sealed through a cover plate cap. After the oil-gas mixture is separated through the air exchange device, the amount of mist-shaped lubricant mixed in the gas mixture which enters the combustion chamber is little. The cleanness and combustion quality of the combustion chamber are ensured so that the discharged gas is cleaner. Simultaneously the invalid loss of the lubricant is reduced. The air exchange device further has the advantages of simple structure and good oil gas separation effect.
Description
Technical field
The utility model relates to the air interchanger of engine housing, is specifically related to a kind of structure of engine breathing device.
Background technique
The air interchanger of motor is a kind of device that increases in order to reduce the motor emission of harmful substances.The gas mixture that this air interchanger is discharged engine crankcase has certain centrifugation, its working principle is: when gas mixture is flowed through air interchanger, lubricant oil can deposit and flow back to utilization again in the crankcase body by spill port, and the gas behind the process air interchanger then flow direction engine suction tude burns for motor again.In addition, in the engine operation process, along with the to-and-fro motion of piston, the gas volume in the crankcase body constantly changes, and pressure also constantly changes thereupon.In order to guarantee to be in negative pressure state in the crankcase body all the time, when piston moves downward when making that pressure increases in the casing, need unnecessary gas is ejected reduction pressure, the gas of discharge is to contain the fuel-air mixture that blow-by gas and mist lubrication liquid form.This fuel-air mixture is Oil-gas Separation under the effect of air interchanger, and isolated gas is finally got back to the firing chamber and burnt once more, is back in the crankcase body after the liquid state and the mist lubrication liquid cooling is congealed into.
Referring to Fig. 3, the available engine air interchanger comprise respiratory chamber 2, spill port 9, breathe sheet 6 and outlet pipe 11, respiratory chamber 2 is arranged on the crankcase body 1, be provided with the air vent that is communicated with crankcase intracavity in the respiratory chamber 2, be stamped on the air vent and breathe sheet 2, after fuel-air mixture separates in respiratory chamber, lubricant oil is back to crankcase intracavity by spill port 9, gas is got back to the firing chamber by outlet pipe 11 and is burnt once more, the air vent of this air interchanger and respiratory chamber cavity have only one, and fuel-air mixture flow time in respiratory chamber is shorter, and flow directly into outlet pipe from air vent easily, be unfavorable for the separation of fuel-air mixture, the gas that causes entering once more the firing chamber is impure, contains a large amount of lubricant oil liquid in the described gas, makes in the firing chamber gaseous combustion insufficient, cause pollution of atmosphere after the discharging, and the invalid loss of Lubricants is big.
Summary of the invention
The purpose of this utility model provides a kind of structure of engine breathing device, fuel-air mixture is by after the separation of this air interchanger, the amount that enters the mist lubrication liquid that is mingled with in the mixed gas of firing chamber significantly reduces, the cleaning and the burning quality of firing chamber have been ensured, exhausting air is cleaned more, reduce the invalid loss of Lubricants simultaneously, simple in structure, the good oil gas separation effect of this air interchanger.
The purpose of this utility model is achieved in that and comprises crankcase body, crankcase body is provided with respiratory chamber, be provided with dividing plate in the respiratory chamber, dividing plate is divided into respiratory chamber first chamber and second chamber that is interconnected, be provided with exhaust air chamber in the middle of described first chamber, breathing sheet moving up and down is stamped in the exhaust air chamber upper end, and the exhaust air chamber bottom is provided with first spill port, first spill port is communicated with the shoe cream room of crankcase body, and exhaust air chamber is communicated with the crankcase body inner chamber by the air vent of cross setting; The described second chamber bottom is provided with second spill port, and second spill port is communicated with the shoe cream room of crankcase body, and second chamber is communicated with engine chamber by an outlet pipe; Described respiratory chamber upper end is by cover plate capping sealing.
Be provided with on the described exhaust air chamber boss of breathing sheet is installed, the boss inwall is a skew wall, breathes sheet and is limited in the skew wall, and the skew wall bottom is provided with step, and the breathing sheet is put in and is normally off on the step.
Described dividing plate is a curved shape, and the tilting locular wall of dividing plate and respiratory chamber upper left quarter is structure as a whole, and first chamber of respiratory chamber and second chamber are communicated with gap between the respiratory chamber right side wall by dividing plate.
Owing to adopt technique scheme, fuel-air mixture body in the engine housing flows to exhaust air chamber through air vent, in exhaust air chamber, push open and breathe before the sheet, most of mist lubrication oil can liquefy in the mixed gas, the lubricant oil of liquefaction is back in the crankcase body by spill port, form first Oil-gas Separation, thereby the mixed gas compression cylinder in the motor breathing process through first Oil-gas Separation makes the pressure increase of cylinder push the breathing sheet open, so just there is the mist lubrication liquid of small part to arrive first chamber along with mixed gas, gas flows to second chamber by the passage of bending in first chamber, cooled off fully to second gas to chamber from first chamber, lubricant oil further liquefaction in second chamber in the fuel-air mixture, flow back to crankcase body by second spill port, form the secondary Oil-gas Separation.The remaining mixed gas that does not contain or contain the minute quantity Lubricants then enters the firing chamber secondary combustion by outlet pipe.Fuel-air mixture all utilizes after separating for several times once more, helps saving cost and protection environment.
The structure of this engine breathing device has comprised the chamber of two Oil-gas Separation, two spill ports and the breathing sheet with Oil-gas Separation effect, make fuel-air mixture circulation in respiratory chamber, holdup time is long, good oil gas separation effect, the cleaning and the burning quality of firing chamber have been ensured, exhausting air is cleaned more, reduce the invalid loss of Lubricants simultaneously.And this air interchanger is simple in structure, be set directly on the crankcase body, do not increase motor overall structure size, well improved the separating effect of fuel-air mixture.
Description of drawings
Fig. 1 is the structural representation of air interchanger of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the structural representation of existing air interchanger.
In the accompanying drawing, 1 is crankcase body, and 1a is the output shaft axis hole, and 2 is respiratory chamber, 2b is tilting locular wall, and 3 is dividing plate, and 4 is first chamber, and 5 is second chamber, 5a is a left chamber, and 5b is right chamber, and 6 for breathing sheet, and 7 is exhaust air chamber, 8 is air vent, and 9 is first spill port, and 10 is second spill port, and 11 is outlet pipe, 12 is cover plate, and 13 is retaining wall, 14,14a is bolt, and 15 is shoe cream room, 16 is boss, and 16a is a skew wall, the 16b step.
Embodiment
With reference to Fig. 1 and Fig. 2, motor comprise crankcase body 1, crankcase body and cylinder head are one-body molded, are provided with output shaft axis hole 1a in the middle of the crankcase body, output shaft axis hole 1a left bottom is provided with respiratory chamber 2, respiratory chamber 2 is located on the crankcase body, is positioned at the crankcase body outer wall.Respiratory chamber 2 upper left quarters are tilting locular wall 2b, be provided with dividing plate 3 in the respiratory chamber 2, dividing plate 3 is structure as a whole with the tilting locular wall 2b of respiratory chamber upper left quarter, and this dividing plate 2 is a curved shape, dividing plate 2 is from the extension of turning back to the right after tilting locular wall 2b extends downwards, the gap between dividing plate 3 and respiratory chamber 2 right side walls.Dividing plate 3 is divided into first chamber 4 that is connected and second chamber, 5, the first chambers 4 and second chamber 5 with respiratory chamber and is communicated with gap between the respiratory chamber right side wall by dividing plate.Be provided with exhaust air chamber 7 in the middle of described first chamber 4, exhaust air chamber 7 upper ends are communicated with first chamber 4, and exhaust air chamber 7 lower ends are goed deep in the crankcase body.Exhaust air chamber 7 upper ends are stamped and are breathed sheet 6, and breathing sheet 6 can move up and down, and is used for connected sum and closes the exhaust air chamber 7 and first chamber 4.Exhaust air chamber 7 upper ends are provided with boss 16 that install to breathe sheet, and boss 16 inwalls are skew wall 16a, breathe sheet 6 and are limited in the skew wall 16a, and skew wall 16a bottom is provided with step 16b, breathe sheet 6 and are normally off and put and be put on the step 16b.Breathing sheet cuts off the exhaust air chamber and first chamber by action of gravity.Exhaust air chamber 7 bottoms are provided with first spill port, 9, the first spill ports 9 and are communicated with the shoe cream room 15 of crankcase body, and first spill port 9 is located at neutral position, exhaust air chamber 7 bottom, are convenient to isolated lubricant oil backflow in the exhaust air chamber.Exhaust air chamber 7 is communicated with the engine case intracoelomic cavity by the air vent 8 of cross setting, and fuel-air mixture enters exhaust air chamber 7 from air vent 8.Described second chamber 5 bottoms are provided with second spill port 10, second spill port 10 is communicated with the shoe cream room 15 of crankcase body, be provided with a retaining wall 13 in second chamber 5, retaining wall 13 is divided into 5a of left chamber and right chamber 5b to second chamber 5, retaining wall 13 has the gap with the tilting locular wall 2b of respiratory chamber 2 upper left quarters, and this gap is communicated with 5a of left chamber and right chamber 5b.Second spill port 10 is located at the bottom of right chamber 5b.Second chamber 5 is communicated with engine chamber by an outlet pipe 11, and outlet pipe 11 1 ends are connected in the 5a of left chamber of second chamber, and the other end is communicated with engine chamber.Described respiratory chamber 2 upper-end surfaces are by cover plate 12 cappings sealing, and cover plate 12 is connected and fixed on the crankcase body by two bolts 14,14a.
The Oil-gas Separation process: the mixed gas in the engine housing at first reaches exhaust air chamber through air vent, and before pushing the breathing sheet open, most of mist lubrication liquid can liquefy in the mixed gas, and the lubricant oil of liquefaction is back in the crankcase body by first spill port.Compression cylinder makes the pressure of cylinder increase in the motor breathing process, thereby fuel-air mixture is pushed the breathing sheet open, so just there is the mist lubrication liquid of small part to arrive first chamber by breathing sheet along with mixed gas, flow to second chamber through first chamber again, owing to the circulation passage of bend cycles is arranged from first chamber to second chamber, allows mixed gas be cooled off fully.Further liquefaction in second chamber, the lubricant oil of liquefaction flows back to crankcase body by second spill port.The remaining mixed gas that does not contain or contain the minute quantity Lubricants then enters the firing chamber secondary combustion by outlet pipe.
Claims (3)
1. the structure of an engine breathing device, comprise crankcase body (1), it is characterized in that: crankcase body (1) is provided with respiratory chamber (2), be provided with dividing plate (3) in the respiratory chamber, dividing plate (3) is divided into respiratory chamber first chamber (4) and second chamber (5) that is interconnected, be provided with exhaust air chamber (7) in the middle of described first chamber, breathing sheet moving up and down (6) is stamped in the exhaust air chamber upper end, exhaust air chamber (7) bottom is provided with first spill port (9), first spill port (9) is communicated with the shoe cream room of crankcase body, and exhaust air chamber (7) is communicated with the crankcase body inner chamber by the air vent (8) of cross setting; Described second chamber (5) bottom is provided with second spill port (10), and second spill port (10) is communicated with the shoe cream room of crankcase body, and second chamber (10) is communicated with engine chamber by an outlet pipe (11); Described respiratory chamber (2) upper end is by cover plate (12) capping sealing.
2. the structure of engine breathing device according to claim 1, it is characterized in that: described exhaust air chamber (7) upper end is provided with installs the boss (16) of breathing sheet, the boss inwall is skew wall (16a), breathing sheet is limited in the skew wall, the skew wall bottom is provided with step (16b), and the breathing sheet is put in and is normally off on the step.
3. the structure of engine breathing device according to claim 1, it is characterized in that: described dividing plate is a curved shape, the tilting locular wall (2a) of dividing plate (3) and respiratory chamber (2) upper left quarter is structure as a whole, and first chamber of respiratory chamber and second chamber are communicated with gap between the respiratory chamber right side wall by dividing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203020517U CN201610778U (en) | 2010-02-01 | 2010-02-01 | Structure of air exchange device of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203020517U CN201610778U (en) | 2010-02-01 | 2010-02-01 | Structure of air exchange device of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201610778U true CN201610778U (en) | 2010-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203020517U Expired - Lifetime CN201610778U (en) | 2010-02-01 | 2010-02-01 | Structure of air exchange device of engine |
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| CN (1) | CN201610778U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182531A (en) * | 2011-04-28 | 2011-09-14 | 江苏林海动力机械集团公司 | Respirator circulating system structure for oil and gas separation of universal gasoline engine |
| CN105221215A (en) * | 2015-11-17 | 2016-01-06 | 浙江钱江摩托股份有限公司 | Deaerator on a kind of engine case of motorcycle |
| CN106468196A (en) * | 2015-08-17 | 2017-03-01 | 江苏苏铃精工机械有限公司 | There is the electromotor of respiratory chamber |
| CN107448320A (en) * | 2016-06-01 | 2017-12-08 | 川崎重工业株式会社 | Two-cycle engine |
| CN112648043A (en) * | 2019-10-10 | 2021-04-13 | 上海汽车集团股份有限公司 | Automobile and engine and oil-gas separator thereof |
-
2010
- 2010-02-01 CN CN2010203020517U patent/CN201610778U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182531A (en) * | 2011-04-28 | 2011-09-14 | 江苏林海动力机械集团公司 | Respirator circulating system structure for oil and gas separation of universal gasoline engine |
| CN106468196A (en) * | 2015-08-17 | 2017-03-01 | 江苏苏铃精工机械有限公司 | There is the electromotor of respiratory chamber |
| CN105221215A (en) * | 2015-11-17 | 2016-01-06 | 浙江钱江摩托股份有限公司 | Deaerator on a kind of engine case of motorcycle |
| CN105221215B (en) * | 2015-11-17 | 2018-06-01 | 浙江钱江摩托股份有限公司 | A kind of gs-oil separator on engine case of motorcycle |
| CN107448320A (en) * | 2016-06-01 | 2017-12-08 | 川崎重工业株式会社 | Two-cycle engine |
| CN107448320B (en) * | 2016-06-01 | 2019-12-03 | 川崎重工业株式会社 | Two-cycle engine |
| CN112648043A (en) * | 2019-10-10 | 2021-04-13 | 上海汽车集团股份有限公司 | Automobile and engine and oil-gas separator thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING RATO POWER MANUFACTURING CO., LTD. Free format text: FORMER OWNER: CHONGQING RUNTONG DONGLI CO., LTD. Effective date: 20131219 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131219 Address after: 402247 B District, industrial park, Jiangjin District, Chongqing Patentee after: Chongqing RATO Power Co., Ltd. Address before: 402247 B District, industrial park, Jiangjin District, Chongqing Patentee before: Chongqing Runtong Dongli Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Structure of air exchange device of engine Effective date of registration: 20140128 Granted publication date: 20101020 Pledgee: China Co truction Bank Corp Jiangjin branch Pledgor: Chongqing RATO Power Co., Ltd. Registration number: 2014500000003 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151127 Address after: 402260 B District, industrial park, Jiangjin District, Chongqing Patentee after: CHONGQING RUNTONG TECHNOLOGY CO., LTD. Address before: 402247 B District, industrial park, Jiangjin District, Chongqing Patentee before: Chongqing RATO Power Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101020 |