CN201705425U - Oil return mechanism of crankshaft box ventilation device - Google Patents
Oil return mechanism of crankshaft box ventilation device Download PDFInfo
- Publication number
- CN201705425U CN201705425U CN2010202174664U CN201020217466U CN201705425U CN 201705425 U CN201705425 U CN 201705425U CN 2010202174664 U CN2010202174664 U CN 2010202174664U CN 201020217466 U CN201020217466 U CN 201020217466U CN 201705425 U CN201705425 U CN 201705425U
- Authority
- CN
- China
- Prior art keywords
- oil return
- return mechanism
- tube
- oil
- return
- 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 - Fee Related
Links
Images
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses an oil return mechanism of a crankshaft box ventilation device, which comprises an oil-gas separator and an oil return pipe, wherein the oil return pipe is communicated with a reflux inlet which is arranged on the bottom portion of the oil-gas separator, and any positions of the oil return pipe comprises a liquid sealing bending pipe. The oil return mechanism of crankshaft box ventilation device has the advantages of compact structure, excellent expansibility, excellent production processing manufacturability, easy mounting, reliable use and free maintenance and the like. The oil return mechanism of crankshaft box ventilation device is suitable for various diesel engines.
Description
Technical field
The utility model relates to a kind of oil return mechanism of diesel engine crankcase bleeder.
Background technique
Crankcase bleeder is one of constituent element of internal-combustion engine, crankcase bleeder need be provided with gas oil separation structure, reclaim machine oil to separate, and the outlet that requires oil return mechanism must be got back to below the machine oil liquid level, the influence that arranged by oil sump, connecting rod and many internals, cause the oil return mechanism complex structure, engine interior and outside difficult the layout are unfavorable for complete machine layout and attractive in appearance.And the supporting type of diesel engine is many, and crankcase bleeder is of a great variety, and the gas oil separation structure versatility of existing crankcase bleeder is poor, can't realize the modular universal design.CN200720188135.0 discloses a kind of gas oil separation structure of internal combustion engine crankcase ventilation system, and return opening connects the machine oil chamber of crankcase downwards by oil returning tube.The deficiency of the still unresolved oil return mechanism versatility of this patent difference.
Summary of the invention
At the deficiencies in the prior art, the utility model provides a kind of oil return mechanism of crankcase bleeder, have versatility good, can realize that modularization can be with design, very suitablely be applied to all kinds of diesel engines.
The oil return mechanism of the utility model crankcase bleeder comprises deaerator and return tube, and return tube is connected with deaerator bottom refluxing opening, and the return tube arbitrary position comprises the back-shaped pipe of fluid-tight.
In the utility model, return tube can be to be metal tube, plastic tube etc., and return tube is communicated with by sebific duct and deaerator bottom refluxing opening, and undertaken by modes such as hoops fastening, the enhanced leaktightness effect.
In the utility model, the bottom of return tube is connected with the upper crankcase position by body or other oil level of crossing whelk bolt and motor.And seal by the combination seal packing ring.
In the utility model, the back-shaped pipe of fluid-tight is vertical the setting, and height liquid seal is determined according to crankcase pressure, is generally 20～25cm.
The utility model adopts as above structure, according to calculation of pressure P=ρ gh as can be known, as long as the height difference of fluid-tight can overcome crankcase pressure, then can not produce the problem of scurrying on the crank case gases, therefore realize not getting back to below the pasta, and guarantee that engine performance is normal, and simple in structure, be applied to all kinds of diesel engines.Specifically have following beneficial effect:
1, the oil return mechanism level of integration height of crankcase bleeder is simple in structure, can realize versatility height and modular design that part uses.
2, the oil return mechanism of the crankcase bleeder of this structure helps complete machine layout and attractive in appearance, has avoided the complex arrangement at engine interior.
3, simultaneously from using effect, the oil return mechanism of the crankcase bleeder of this structure is a kind of non-maintaining mechanism.
Description of drawings
Fig. 1 is the utility model structural front view;
Fig. 2 is the utility model structure left view.
Among the figure: the 1-bolt, the 2-deaerator, 3-oil return sebific duct, the 4-hoop, the 5-return tube, 6-bonded washer, 7-are crossed the whelk bolt, and 21,22,23,24,25,26,27 is the flow direction of the oil of this crankcase bleeder, promptly flow to 27 by 21 successively.
Embodiment
As shown in Figure 1, the oil return mechanism of the utility model crankcase bleeder comprises oil return sebific duct 3, return tube 5, crosses whelk bolt 7 and bonded washer 6 and hoop 4.
The curved shape of the back-shaped pipe of fluid-tight and different adjustment that highly can arrange according to diesel engine mainly be to adjust according to the height and position difference that deaerator is placed in the return tube.
During assembling return tube (for hollow) is contained on the body by crossing whelk bolt and driving fit packing ring, the other end of return tube is contained in deaerator bottom by sebific duct and hoop, deaerator then by bolt tightening on the needed position of motor such as cylinder head cover or body.
The oil-containing gases of discharging from engine body or cylinder head cover is by after the separation of deaerator, and the oil droplet that is separated flows to the oil return sebific duct from the pipe of deaerator bottom, again by return tube and cross the whelk bolt and flow back to crankcase or body.The flow direction of oil is shown in the order of the 21-27 in the accompanying drawing.
It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technological scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technological scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.
Claims (7)
1. the oil return mechanism of a crankcase bleeder comprises deaerator and return tube, and return tube is connected with deaerator bottom refluxing opening, and it is characterized in that: the return tube arbitrary position comprises the back-shaped pipe of fluid-tight.
2. according to the described oil return mechanism of claim 1, it is characterized in that: return tube is metal tube or plastic tube, and return tube is communicated with deaerator bottom refluxing opening by sebific duct.
3. according to the described oil return mechanism of claim 2, it is characterized in that: return tube is communicated with deaerator bottom refluxing opening by sebific duct, and is undertaken fastening by the hoop mode.
4. according to the described oil return mechanism of claim 1, it is characterized in that: the bottom of return tube is connected with the upper crankcase position by body or the oil level of crossing whelk bolt and motor.
5. according to the described oil return mechanism of claim 4, it is characterized in that: the bottom of return tube seals by the combination seal packing ring.
6. according to the described oil return mechanism of claim 1, it is characterized in that: the back-shaped pipe of fluid-tight vertically is provided with.
7. according to claim 1 or 6 described oil return mechanisms, it is characterized in that: height liquid seal is 20～25cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202174664U CN201705425U (en) | 2010-06-04 | 2010-06-04 | Oil return mechanism of crankshaft box ventilation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202174664U CN201705425U (en) | 2010-06-04 | 2010-06-04 | Oil return mechanism of crankshaft box ventilation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705425U true CN201705425U (en) | 2011-01-12 |
Family
ID=43442579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202174664U Expired - Fee Related CN201705425U (en) | 2010-06-04 | 2010-06-04 | Oil return mechanism of crankshaft box ventilation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705425U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703937A (en) * | 2016-12-30 | 2017-05-24 | 广西玉柴机器股份有限公司 | Oil-gas separation system for engine |
| CN110425110A (en) * | 2019-07-05 | 2019-11-08 | 东风商用车有限公司 | A kind of engine compressor oil return system of band ventilation |
-
2010
- 2010-06-04 CN CN2010202174664U patent/CN201705425U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703937A (en) * | 2016-12-30 | 2017-05-24 | 广西玉柴机器股份有限公司 | Oil-gas separation system for engine |
| CN110425110A (en) * | 2019-07-05 | 2019-11-08 | 东风商用车有限公司 | A kind of engine compressor oil return system of band ventilation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101490372B (en) | Oil collecting structure of blow-by gas recirculation system and oil collecting device having the structure | |
| CN203296864U (en) | Cylinder cover assembly with oil-gas separation device integrated | |
| CN206000638U (en) | A kind of gas oil separation structure being integrated within engine cylinder cover | |
| CN1924308A (en) | Engine crankshaft ventilation system | |
| JP2016033371A (en) | Reciprocating piston internal combustion engine | |
| CN201705425U (en) | Oil return mechanism of crankshaft box ventilation device | |
| CN109113833B (en) | Dual-cavity independent oil-gas separator | |
| CN201334935Y (en) | Cylinder cover oil-gas separating device | |
| US20030150438A1 (en) | Four-cycle overhead valve engine | |
| CN107762698A (en) | The spill valve of injection pump | |
| CN204003005U (en) | Deaerator | |
| CN207315530U (en) | A kind of automobile engine cylinder-body | |
| CN202510187U (en) | Self-sealed oil return structure of blow-by oil and gas separation system of engine crank case | |
| CN201874641U (en) | Two-stage oil-gas separating device of crankcase ventilation system | |
| CN205805749U (en) | Cover assembly of cylinder head for Oil-gas Separation | |
| CN206129428U (en) | Cylinder end lid respiratory | |
| CN201635799U (en) | Engine cylinder cover hood integrated with oil gas structure and crankcase ventilating system | |
| CN104153845A (en) | Oil-gas separator | |
| CN208982283U (en) | Small-size screw rod all-in-one integrated device | |
| CN208564791U (en) | A kind of engine air cylinder cap with gas and oil separating plant | |
| CN202900372U (en) | Crankcase ventilation system oil return structure | |
| CN209704670U (en) | A kind of two-chamber independence gs-oil separator | |
| CN202811009U (en) | Oil-gas separator of supercharged engine | |
| CN208267950U (en) | The exhaust valve cooling device of aviation piston engine | |
| CN106089485A (en) | Engine air cylinder cap assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20150604 |
|
| EXPY | Termination of patent right or utility model |