CN203515730U - Crankcase ventilation device of diesel engine - Google Patents
Crankcase ventilation device of diesel engine Download PDFInfo
- Publication number
- CN203515730U CN203515730U CN201320597729.2U CN201320597729U CN203515730U CN 203515730 U CN203515730 U CN 203515730U CN 201320597729 U CN201320597729 U CN 201320597729U CN 203515730 U CN203515730 U CN 203515730U
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- CN
- China
- Prior art keywords
- suction tude
- oil gas
- head cover
- cylinder head
- deaerator
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- Expired - Fee Related
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model provides a crankcase ventilation device of a diesel engine. The crankcase ventilation device of the diesel engine comprises an oil-gas separator, a first cylinder cover oil-gas inlet pipe used for being communicated with a crankcase and a gas inlet of the oil-gas separator, an oil returning pipe used for being communicated with an oil returning port of the oil-gas separator and at least one additional air inlet pipe used for being communicated with the crankcase and the gas inlet of the oil-gas separator. According to the crankcase ventilation device of the diesel engine, more than two oil-gas openings are formed in the crankcase so that oil-gas mixing gas can be input into the inlet of the oil-gas separator. Thus, the oil-gas mixing gas in the crankcase can be thoroughly separated, gas pressure in the crankcase can be reduced, the gas pressure inside the crankcase can be controlled within a reasonable range, the discharging requirement can be satisfied, and the economic performance can be improved.
Description
Technical field
The utility model relates to diesel engine crankcase aeration technology, relates in particular to a kind of diesel engine crankcase ventilation plant.
Background technique
During engine operation, the gas of firing chamber can bleed in crankcase by the gap between piston and cylinder, too high for preventing crankcase internal pressure, and extend machine oil life time, reduce parts depreciation and corrosion, prevent engine oil leakage, must ventilate to crankcase inside; In addition, for meeting the emission request of increasingly stringent and improving Economy, also must the design of March ventilation system for shaft box in engine design process.
Prior art is mounting pipe joint on cylinder head cover, and in crankcase, gas enters into deaerator by pipe joint, and the machine oil after separation is got back to oil sump, and the gas after separation rekindles after directly getting back to air-strainer; Fuel-air mixture in can not abundant separated crankcase, causes crankcase pressure too high, has reduced machine oil life time, and motor exists leakage of oil risk simultaneously.
Model utility content
The utility model provides a kind of diesel engine crankcase ventilation plant, and for overcoming defect of the prior art, fuel-air mixture in abundant separated crankcase, controls crankcase pressure, meets emission request and improves Economy.
The utility model provides a kind of diesel engine crankcase ventilation plant, comprise deaerator, for being communicated with crankcase with the first cylinder head cover oil gas suction tude of deaerator suction port with for being communicated with the return tube of deaerator return opening, also comprise that at least one is for being communicated with the additional suction tude of crankcase and described deaerator suction port.
As above-mentioned a kind of embodiment, described additional suction tude is for being communicated with the cylinder body oil gas suction tude that is located at oil gas opening on cylinder body.
As the improvement further of the present embodiment, described deaerator suction port is connected with deaerator suction tude, and described the first cylinder head cover oil gas suction tude is connected respectively this deaerator suction tude with described cylinder body oil gas suction tude.
Preferred version as the present embodiment, described cylinder body oil gas suction tude comprises that cylinder body oil gas inlet pipe connection and one end are for being connected to the cylinder body suction tude joint on cylinder body oil gas opening, described cylinder body oil gas inlet pipe connection one end is connected with the described cylinder body suction tude joint the other end, and the described cylinder body oil gas inlet pipe connection the other end is connected with described deaerator suction tude.
As above-mentioned another kind of embodiment, described additional suction tude is for being communicated with the second cylinder head cover oil gas suction tude that is located at oil gas opening on cylinder head cover.
As the improvement further of the present embodiment, described deaerator suction port is connected with deaerator suction tude, and described the first cylinder head cover oil gas suction tude is connected respectively this deaerator suction tude with described the second cylinder head cover oil gas suction tude.
Preferred version as the present embodiment, described the second cylinder head cover oil gas suction tude comprises that the second cylinder head cover oil gas inlet pipe connection and one end are for being connected to the second cylinder head cover suction tude joint on cylinder head cover oil gas opening, described second cylinder head cover oil gas inlet pipe connection one end is connected with the described second cylinder head cover suction tude joint the other end, and the described second cylinder head cover oil gas inlet pipe connection the other end is connected with described deaerator suction tude.
The diesel engine crankcase ventilation plant that the utility model provides, plural oil gas opening is set on crankcase to deaerator import input fuel-air mixture, with fuel-air mixture in abundant separated crankcase, and reduce the gas pressure of crankcase inside, crankcase internal pressure is controlled in the reasonable scope, met emission request and improve Economy.
Accompanying drawing explanation
The structural representation of the diesel engine crankcase ventilation plant that Fig. 1 provides for the utility model embodiment one;
The structural representation of the diesel engine crankcase ventilation plant that the preferred embodiment that Fig. 2 is the utility model embodiment one provides;
The structural representation of the diesel engine crankcase ventilation plant that Fig. 3 provides for the utility model embodiment two;
The structural representation of the diesel engine crankcase ventilation plant that the preferred embodiment that Fig. 4 is the utility model embodiment two provides;
Embodiment
Embodiment
As Figure 1-4, the utility model provides a kind of diesel engine crankcase ventilation plant, comprise deaerator 1, for being communicated with crankcase 2 with the first cylinder head cover oil gas suction tude 10 of deaerator suction port 11 with for being communicated with the return tube 90 of deaerator return opening 12, also comprise that at least one is for being communicated with the additional suction tude of crankcase 2 and deaerator suction port 10.Additional suction tude in Fig. 1 is the second cylinder head cover oil gas suction tude 20, and the additional suction tude in Fig. 2 is cylinder body oil gas suction tude 30.First cylinder head cover oil gas suction tude 10 one end are connected with the first oil gas opening 21 being located on cylinder head cover, and the other end is connected with deaerator suction port 11.Additional suction tude described in embodiment in Fig. 1-4 is two, but is not limited to this, can also establish three above additional suction tude, all at the row of protection of the present utility model.
The diesel engine crankcase ventilation plant that the utility model provides, plural oil gas opening is set on crankcase to deaerator import input fuel-air mixture, be different from the draft type of only getting oil gas from cylinder head cover in prior art, by plural oil gas opening, in crankcase, get fuel-air mixture simultaneously, fuel-air mixture in like this can more abundant separated crankcase, and reduce the gas pressure of crankcase inside, crankcase internal pressure is controlled in the reasonable scope, met emission request and improve Economy.
Embodiment one
As shown in Figure 1, as a kind of embodiment of above-described embodiment, additional suction tude is for being communicated with the second cylinder head cover oil gas suction tude 20 that is located at oil gas opening 22 on cylinder head cover.
As shown in Figure 3, improvement further as the present embodiment, connection for convenience of deaerator, deaerator suction port 11 is connected with deaerator suction tude 11a, and the first cylinder head cover oil gas suction tude 10 is connected respectively this deaerator suction tude 11a with the second cylinder head cover oil gas suction tude 20.
Preferred version as the present embodiment, the second cylinder head cover oil gas suction tude 20 comprises that the second cylinder head cover oil gas inlet pipe connection 20a and one end are for being connected to the second cylinder head cover suction tude joint 20b on cylinder head cover the second oil gas opening 22, second cylinder head cover oil gas inlet pipe connection 20a one end is connected with the second cylinder head cover suction tude joint 20b the other end, and the second cylinder head cover oil gas inlet pipe connection 20a the other end is connected with deaerator suction tude 11a.
Cylinder head cover the second oil gas opening 22 can be offered by cast when cast cylinder head cover, in order to protect cylinder head cover the second oil gas opening 22, by the second cylinder head cover suction tude joint 20b, be connected with cylinder head cover the second oil gas opening 22, because the second cylinder head cover oil gas suction tude 20 is easily damaged parts, adopt this structure only need to change the second cylinder head cover oil gas inlet pipe connection 20a, do not need to dismantle one end that the second cylinder head cover suction tude joint 20b is connected with cylinder head cover the second oil gas opening 22, thereby reduced the wearing and tearing of cylinder head cover, cost-saving; The flexible arrangement that is conducive in addition the second cylinder head cover oil gas suction tude 20.
Embodiment two
As shown in Figure 2, as the another kind of embodiment of above-described embodiment, additional suction tude is for being communicated with the cylinder body oil gas suction tude 30 that is located at cylinder body oil gas opening 23.
As shown in Figure 4, improvement further as the present embodiment, for convenience of the connection of deaerator, deaerator suction port 11 is connected with deaerator suction tude 11a, and the first cylinder head cover oil gas suction tude 10 is connected respectively this deaerator suction tude 11a with cylinder body oil gas suction tude 30.
Preferred version as the present embodiment, cylinder body oil gas suction tude 30 comprises that cylinder body oil gas inlet pipe connection 30a and one end are for being connected to the cylinder body suction tude joint 30b on cylinder body oil gas opening, cylinder body oil gas inlet pipe connection 30a one end is connected with the cylinder body suction tude joint 30b the other end, and the cylinder body oil gas inlet pipe connection 30a the other end is connected with deaerator suction tude 11a.
Cylinder body oil gas opening 23 can be offered by cast when cast cylinder body, in order to protect cylinder body oil gas opening 23, by cylinder body suction tude joint 30b, be connected with cylinder body oil gas opening 23, because cylinder body oil gas suction tude 30 is easily damaged parts, adopt this structure only need to change cylinder body oil gas inlet pipe connection 30a, do not need to dismantle one end that cylinder body suction tude joint 30b is connected with cylinder body oil gas opening 23, thereby reduced the wearing and tearing of cylinder body, cost-saving; The flexible arrangement that is conducive in addition cylinder body oil gas suction tude 30.
Finally it should be noted that: each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit above; Although the utility model is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technological scheme that still can record aforementioned each embodiment is modified, or some or all of technical characteristics is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of each embodiment's technological scheme of the utility model.
Claims (7)
1. a diesel engine crankcase ventilation plant, comprise deaerator, for being communicated with crankcase with the first cylinder head cover oil gas suction tude of deaerator suction port with for being communicated with the return tube of deaerator return opening, it is characterized in that, also comprise that at least one is for being communicated with the additional suction tude of crankcase and described deaerator suction port.
2. diesel engine crankcase ventilation plant according to claim 1, is characterized in that, described additional suction tude is for being communicated with the cylinder body oil gas suction tude that is located at oil gas opening on cylinder body.
3. diesel engine crankcase ventilation plant according to claim 1, is characterized in that, described additional suction tude is for being communicated with the second cylinder head cover oil gas suction tude that is located at oil gas opening on cylinder head cover.
4. diesel engine crankcase ventilation plant according to claim 2, it is characterized in that, described deaerator suction port is connected with deaerator suction tude, and described the first cylinder head cover oil gas suction tude is connected respectively this deaerator suction tude with described cylinder body oil gas suction tude.
5. diesel engine crankcase ventilation plant according to claim 4, it is characterized in that, described cylinder body oil gas suction tude comprises that cylinder body oil gas inlet pipe connection and one end are for being connected to the cylinder body suction tude joint on cylinder body oil gas opening, described cylinder body oil gas inlet pipe connection one end is connected with the described cylinder body suction tude joint the other end, and the described cylinder body oil gas inlet pipe connection the other end is connected with described deaerator suction tude.
6. diesel engine crankcase ventilation plant according to claim 3, it is characterized in that, described deaerator suction port is connected with deaerator suction tude, and described the first cylinder head cover oil gas suction tude is connected respectively this deaerator suction tude with described the second cylinder head cover oil gas suction tude.
7. diesel engine crankcase ventilation plant according to claim 6, it is characterized in that, described the second cylinder head cover oil gas suction tude comprises that the second cylinder head cover oil gas inlet pipe connection and one end are for being connected to the second cylinder head cover suction tude joint on cylinder head cover oil gas opening, described second cylinder head cover oil gas inlet pipe connection one end is connected with the described second cylinder head cover suction tude joint the other end, and the described second cylinder head cover oil gas inlet pipe connection the other end is connected with described deaerator suction tude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320597729.2U CN203515730U (en) | 2013-09-26 | 2013-09-26 | Crankcase ventilation device of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320597729.2U CN203515730U (en) | 2013-09-26 | 2013-09-26 | Crankcase ventilation device of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515730U true CN203515730U (en) | 2014-04-02 |
Family
ID=50374674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320597729.2U Expired - Fee Related CN203515730U (en) | 2013-09-26 | 2013-09-26 | Crankcase ventilation device of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203515730U (en) |
-
2013
- 2013-09-26 CN CN201320597729.2U patent/CN203515730U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Crankcase ventilator of diesel engine Effective date of registration: 20150714 Granted publication date: 20140402 Pledgee: Agricultural Bank of China Limited by Share Ltd Tianjin branch of economic and Technological Development Zone Pledgor: Inner Mongol Ou Yide Engine Ltd. Registration number: 2015990000576 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171208 Granted publication date: 20140402 Pledgee: Agricultural Bank of China Limited by Share Ltd Tianjin branch of economic and Technological Development Zone Pledgor: Inner Mongol Ou Yide Engine Ltd. Registration number: 2015990000576 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20200926 |