CN2583366Y - Ventilating device for crankcase - Google Patents
Ventilating device for crankcase Download PDFInfo
- Publication number
- CN2583366Y CN2583366Y CN 02270373 CN02270373U CN2583366Y CN 2583366 Y CN2583366 Y CN 2583366Y CN 02270373 CN02270373 CN 02270373 CN 02270373 U CN02270373 U CN 02270373U CN 2583366 Y CN2583366 Y CN 2583366Y
- Authority
- CN
- China
- Prior art keywords
- resuscitation apparatus
- casing
- labyrinth
- return opening
- crankcase
- 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.)
- Expired - Lifetime
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a ventilating device of a crank case, which is composed of a respirator and a labyrinth, wherein the labyrinth is formed in the way that the inner part of a sealing case body is divided into at least two sealing spaces by a partition plate connected with the inner wall of the case body in an acute angle and the lowest point of the stagger position of the acute angle of the partition plate and the case body is provided with a labyrinth passage. The position of the included angle of the lowest point of the case body is provided with an oil return opening. An air inlet is arranged on the box body slightly higher than the position of the oil return opening. The respirator is arranged on one surface of the upper part of the box body. An inlet of the respirator is communicated with the space in the box body. The utility model has the characteristics of good gas oil separation, machine oil leakage prevention and high safety and reliability.
Description
One, technical field
The utility model belongs to technical field of internal combustion engines, especially relates to a kind of crank case of internal combustion engine ventilation plant.
Two, background technique
The ventilation plant of crank case of internal combustion engine is to adopt resuscitation apparatus to be directly installed on the gear chamber cover of diesel engine crankcase mostly at present, seldom a part adopts by the labyrinth and connects resuscitation apparatus and crankcase, even adopted the labyrinth connection, because the labyrinth is to use dividing plate simply airtight casing to be divided into labyrinth-like, because the problem of the position of dividing plate, the shape of cutting apart, make Oil-gas Separation not ideal enough, prevent the engine oil leakage weak effect, resuscitation apparatus often breaks down.
Three, summary of the invention
The purpose of this utility model be to improve the deficiency of prior art and provide a kind of Oil-gas Separation good, prevent engine oil leakage, safe and reliable crankcase bleeder.
The purpose of this utility model is to realize like this, a kind of crankcase bleeder, form by resuscitation apparatus and labyrinth, be characterized in that described labyrinth is to be separated to form at least two seal spacies by acutangulating the dividing plate that is connected with cabinet wall in the casing of sealing, the minimum point of dividing plate and casing acute angle staggered place is provided with labyrinth channel, the minimum point angle of casing is provided with return opening, on casing, be provided with suction port a little more than the return opening place, be provided with resuscitation apparatus on a face on casing top, the resuscitation apparatus import communicates with space in the casing.
In order further to realize the purpose of this utility model, can also be described return opening, suction port, labyrinth channel, resuscitation apparatus import not in a tangent plane plane, interlaced setting.
In order further to realize the purpose of this utility model, can also be that described resuscitation apparatus is that the bottom of resuscitation apparatus is provided with the resuscitation apparatus return opening, the uptake ventilator top that the resuscitation apparatus import connects is provided with the floating ball that can fluctuate, be provided with the resuscitation apparatus outlet on the respirator body that is higher than the floating ball position on the resuscitation apparatus, the top of resuscitation apparatus seals by plug screw.
Compared with the prior art the utility model has following distinguishing feature and good effect: multiple acute angle alternating expression Oil-gas Separation labyrinth channel structure is adopted in labyrinth of the present utility model, it is thoroughly clear-cut that oil, gas are separated, resuscitation apparatus adopts floating ball formula negative pressure valve simple in structure, oil, gas passage are taked size, particular design that direction is different, further strengthened Oil-gas Separation, made Oil-gas Separation completely.
Four, description of drawings
Below in conjunction with drawings and Examples the utility model is described in further details.
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the sectional view of Fig. 1.
Five, specific embodiments
Embodiment, a kind of crankcase bleeder, with reference to Fig. 1, Fig. 2, be in the casing 10 of sealing, to be provided with dividing plate 11, dividing plate 11 is acute angle with the connection angle of casing 10 walls, dividing plate is separated to form at least two seal spacies with casing 10 inner spaces, present embodiment adopts a dividing plate 11, dividing plate 11 is provided with labyrinth channel 3 with the minimum point of casing 10 wall acute angle staggered places, the minimum point angle of casing 10 is provided with return opening 1, on casing 1, be provided with suction port 2 a little more than return opening 1 place, on a face on casing 10 tops, be provided with resuscitation apparatus, resuscitation apparatus import 8 communicates with space in the casing 10, the bottom of resuscitation apparatus is provided with resuscitation apparatus return opening 9, and the uptake ventilator top that resuscitation apparatus import 8 connects is provided with the floating ball 5 that can fluctuate, and is provided with resuscitation apparatus outlet 7 on the respirator body 6 that is higher than the floating ball position on the resuscitation apparatus, the top of resuscitation apparatus is by plug screw 4 sealings, and this has constituted a kind of static structure of the present utility model.
In the diesel engine work when crankcase pressure is higher than external atmospheric pressure, gas after resuscitation apparatus labyrinth suction port 2 flows into diverted flow to labyrinth channel 3; Because action of inertia, the oil content that proportion is bigger in the gas when turning to is thrown off out through spill port 1 and flows back to crankcase.Once more oil gas is shunted during air-flow bending process labyrinth channel 3.Because labyrinth suction port 2 and labyrinth channel 3 all acutangulate staggered designs, and labyrinth suction port 2 is a little more than the bottom surface, labyrinth, so this labyrinth structure has centrifugation well to air-flow.Air-flow flows into resuscitation apparatus downwards through resuscitation apparatus acute angle import 8 again after the initial gross separation of labyrinth, floating ball 5 is upwards backed down in bending then, and bending flows to atmosphere or suction tude (when the resuscitation apparatus outlet taps into tracheae, when promptly using the closed-circuit breathing apparatus structure) again.Air-flow turns to through twice bending in resuscitation apparatus, makes oily gentle twice separation of getting back in the air-flow, and isolated machine oil flows back to crankcase through resuscitation apparatus spill port 9, labyrinth spill port 1.When ambient pressure was higher than crankcase pressure, floating ball in the resuscitation apparatus seat surface, made ambient atmos can not enter crankcase at the gas pressure lower seal, guaranteed that crankcase pressure is not higher or lower than ambient pressure.
Claims (3)
1, a kind of crankcase bleeder, form by resuscitation apparatus and labyrinth, it is characterized in that described labyrinth is to be separated to form at least two seal spacies by acutangulating the dividing plate (11) that is connected with casing (10) inwall in the casing (10) of sealing, dividing plate (11) is provided with labyrinth channel (3) with the minimum point of casing (10) acute angle staggered place, the minimum point angle of casing (10) is provided with return opening (1), on the casing of locating a little more than return opening (1) (10), be provided with suction port (2), be provided with resuscitation apparatus on a face on casing (10) top, resuscitation apparatus import (8) communicates with the interior space of casing (10).
2, a kind of crankcase bleeder according to claim 1 is characterized in that described return opening (1), suction port (2), labyrinth channel (3), resuscitation apparatus import (8) not in a tangent plane plane, interlaced setting.
3, a kind of crankcase bleeder according to claim 1, it is characterized in that described resuscitation apparatus is that the bottom of resuscitation apparatus is provided with resuscitation apparatus return opening (9), the uptake ventilator top that resuscitation apparatus import (8) connects is provided with the floating ball (5) that can fluctuate, be provided with resuscitation apparatus outlet (7) on the respirator body (6) that is higher than floating ball (5) position on the resuscitation apparatus, the top of resuscitation apparatus is by plug screw (4) sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02270373 CN2583366Y (en) | 2002-10-23 | 2002-10-23 | Ventilating device for crankcase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02270373 CN2583366Y (en) | 2002-10-23 | 2002-10-23 | Ventilating device for crankcase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2583366Y true CN2583366Y (en) | 2003-10-29 |
Family
ID=33735447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02270373 Expired - Lifetime CN2583366Y (en) | 2002-10-23 | 2002-10-23 | Ventilating device for crankcase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2583366Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359406A (en) * | 2011-10-31 | 2012-02-22 | 绿田机械股份有限公司 | Environment-friendly power gasoline engine |
| CN102536384A (en) * | 2010-12-13 | 2012-07-04 | 曼·胡默尔有限公司 | Crankcase ventilation device for internal combustion engine |
| CN104500176A (en) * | 2014-12-29 | 2015-04-08 | 无锡华源凯马发动机有限公司 | Breather structure of cylinder cover hood of single-cylinder air-cooled diesel engine |
| CN105275541A (en) * | 2015-12-04 | 2016-01-27 | 广西玉柴机器股份有限公司 | Respirator capable of preventing back flow |
| CN105275542A (en) * | 2015-12-04 | 2016-01-27 | 广西玉柴机器股份有限公司 | Engine respirator |
| CN114575964A (en) * | 2022-02-18 | 2022-06-03 | 江苏常发农业装备股份有限公司 | Engine respirator |
-
2002
- 2002-10-23 CN CN 02270373 patent/CN2583366Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536384A (en) * | 2010-12-13 | 2012-07-04 | 曼·胡默尔有限公司 | Crankcase ventilation device for internal combustion engine |
| CN102359406A (en) * | 2011-10-31 | 2012-02-22 | 绿田机械股份有限公司 | Environment-friendly power gasoline engine |
| CN104500176A (en) * | 2014-12-29 | 2015-04-08 | 无锡华源凯马发动机有限公司 | Breather structure of cylinder cover hood of single-cylinder air-cooled diesel engine |
| CN105275541A (en) * | 2015-12-04 | 2016-01-27 | 广西玉柴机器股份有限公司 | Respirator capable of preventing back flow |
| CN105275542A (en) * | 2015-12-04 | 2016-01-27 | 广西玉柴机器股份有限公司 | Engine respirator |
| CN114575964A (en) * | 2022-02-18 | 2022-06-03 | 江苏常发农业装备股份有限公司 | Engine respirator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121023 Granted publication date: 20031029 |