CN201486622U - Novel crankcase ventilation system of diesel engine - Google Patents
Novel crankcase ventilation system of diesel engine Download PDFInfo
- Publication number
- CN201486622U CN201486622U CN2009201725718U CN200920172571U CN201486622U CN 201486622 U CN201486622 U CN 201486622U CN 2009201725718 U CN2009201725718 U CN 2009201725718U CN 200920172571 U CN200920172571 U CN 200920172571U CN 201486622 U CN201486622 U CN 201486622U
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- CN
- China
- Prior art keywords
- ventilation system
- cylinder body
- utility
- model
- oil
- 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
- 238000009423 ventilation Methods 0.000 title claims abstract description 21
- 238000005266 casting Methods 0.000 claims description 14
- 239000003921 oil Substances 0.000 abstract description 37
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000010705 motor oil Substances 0.000 abstract description 3
- 241001391944 Commicarpus scandens Species 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 3
- 239000010721 machine oil Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Abstract
The utility model discloses a novel crankcase ventilation system of a diesel engine, comprising an oil return channel which is provided with a local sealing area cast on a cylinder body. The adopted technical scheme provided by the utility model can effectively solve the technical problems that the crankshaft ventilation system in the prior art has more expensive manufacturing cost and large distribution difficulty and is easy to break down and the like; and simultaneously, the adopted technical scheme provided by the utility model also has the following advantages that: 1. the oil return channel of the crankcase ventilation system is cast on the cylinder body, thus having compact structure and saving the cost of external pipelines; 2. the designed local sealing area has no any special requirement on the engine oil level in an oil sump; and 3. the front end surface and the rear end surface of the cylinder body are reasonably utilized, (generally, the front end surface and the rear end surface are gear chambers), thus having no influence on the other parts.
Description
Technical field
The utility model relates to a kind of novel diesel machine crankshaft box ventilation system.
Background technique
At present, in the design of crankshaft of diesel engine box ventilation system, generally adopt independent deaerator, mostly adopt the outer connecting pipe road, deaerator and oil sump are coupled together the realization oil return.And in order to guarantee that oil return is not influenced by crankcase pressure, oil return is smooth and easy, must receive return tube below the machine oil liquid level.But drainback passage is received the oil sump liquid level once, and the drainback passage that needs is longer, and manufacture cost is relatively more expensive, and the liquid level of oil sump inner engine oil changes, and difficulty is very big so layout is got up.Simultaneously, the pipeline that is arranged in the motor outside takes up room, and also easily breaks down.
The model utility content
Technical problem to be solved in the utility model is, adopts bent axle ventilation system of the prior art, makes manufacture cost relatively more expensive, arranges that difficulty is big, technical problem such as break down easily, and a kind of novel diesel machine crankshaft box ventilation system is provided.
Technological scheme provided by the utility model is, a kind of novel diesel machine crankshaft box ventilation system comprises drainback passage, and described drainback passage is provided with the partially sealed district that casts out on cylinder body.
Described drainback passage is made up of two-part at least, and described drainback passage first portion is the casting pipeline that is cast on the cylinder body; Second portion is the partially sealed district that casts out on the cylinder body.
The end of described casting pipeline is provided with the partially sealed district of oil duct.
Described partially sealed district is " U " type.
The top of described " U " type seal area is between the 15-25mm to the distance of bottom.
The top of described " U " type seal area is 20mm to the distance of bottom.
Adopt technological scheme provided by the utility model, can effectively solve and adopt bent axle ventilation system of the prior art, make manufacture cost relatively more expensive, the layout difficulty is big, technical problem such as break down easily adopts technological scheme provided by the utility model simultaneously, also has the following advantages, 1, triton oil return oil duct is cast on the cylinder body, compact structure, saving exterior line cost.2, the local sealing area of design, to the machine oil liquid level in oily 1 shell without any special requirement.3, rationally utilize the front/rear end of cylinder body, (general front/rear end is a gear chamber) can not exert an influence to other parts.
Description of drawings
In conjunction with the accompanying drawings, the utility model is further described:
Fig. 1 is the utility model structural representation;
Wherein, 1 is drainback passage; 2 are the casting pipeline; 3 is seal area.
Embodiment
As shown in Figure 1, technological scheme provided by the utility model is, a kind of novel diesel machine crankshaft box ventilation system comprises drainback passage 1, and described drainback passage 1 is provided with the partially sealed district 3 that casts out on cylinder body; Described drainback passage 1 is made up of two-part at least, and described drainback passage 1 first portion is the casting pipeline 2 that is cast on the cylinder body; Second portion is the partially sealed district 3 that casts out on the cylinder body; The end of described casting pipeline 2 is provided with the partially sealed district 3 of oil duct; Described partially sealed district 3 is " U " type; The top of described " U " type seal area 3 is 20mm to the distance of bottom.
The utility model is unimpeded for the oil return that guarantees crankcase ventilation system, the oil return design of Sealing Structure of an integral body is become the sealing configuration of a part.By the special process of casting oil duct, more reasonable with crankcase ventilation system design, compactness.
The utility model at be heavy duty diesel engine, consider that mainly the needed deaerator of large diesel engine is bigger, if arrange compact inadequately, can produce very big influence to the overall dimensions of motor.U type of terminal appropriate design groove at drainback passage 1 forms partially sealed chamber, guarantees that the motor oil return is unimpeded.And also can carry out good lubricating for kinematic pair on every side.
Adopt the utility model, at first solved the oil return problem of deaerator.Former integrated type enclosed construction has been become present partial closure formula structure.Oil return is smooth and easy, is not subjected to the influence of oil sump liquid level height.Secondly, the huge space of cylinder body end face can be arranged the position and the size of oil duct according to actual conditions.At the end of oil duct, must design one and can realize partially sealed oil return groove.
Innovative point of the present utility model: 1 with the drainback passage 1 of crankcase ventilation system with the arranged in form of casting on engine cylinder-body.
A 2 U type of the tip designs grooves at the casting oil duct are realized partially sealedly, guarantee the smooth and easy of oil return.
3 oil ducts are arranged in the front/rear end of cylinder body, connection and reasonable arrangement, compactness between engine air.
Adopt the advantage that the utility model brought: 1, reduce the external engine line arrangement, the oil return science of assurance motor triton system, reasonable, durable in use.2, adopt foundry engieering casting back oil road, convenient, reliable, practical.
Adopt technological scheme provided by the utility model, gas blowby is through after the separation of deaerator, and (oil return of deaerator) can arrive the B district along (drainback passage 1 of cylinder casting).(incipient time, crankcase pressure is smaller, so a spot of oil return can not influence its performance) is along with oil return is more and more.In the time of can covering the A district,,, avoided crankcase pressure influence of fluctuations oil return so formed a Seal cage in this zone because the A point exceeds much than the oil return mouth of pipe.The oil that covers the A district will overflow, and flows back to oil sump then.
About the high 20mm that must order than B in the position that A is ordered in this process.
Technological scheme of the present invention is mainly reflected in:
1, the present invention adopts casting pipeline 2, runs through the attachment face up and down of cylinder body.
2, at the end of casting pipeline 2, a U type groove is arranged, the oil return of triton forms seal area 3 territories here.When oil return more for a long time, lubricant oil overflows U type groove.Can lubricate simultaneously gear, the bearing of end face.
Claims (6)
1. a novel diesel machine crankshaft box ventilation system comprises drainback passage (1), it is characterized in that, described drainback passage (1) is provided with the partially sealed district (3) that casts out on cylinder body.
2. a kind of novel diesel machine crankshaft box ventilation system according to claim 1 is characterized in that, described drainback passage (1) is made up of two-part at least, and described drainback passage (1) first portion is the casting pipeline (2) that is cast on the cylinder body; Second portion is the partially sealed district (3) that casts out on the cylinder body.
3. according to claim 1 or 2 described a kind of novel diesel machine crankshaft box ventilation systems, it is characterized in that the end of described casting pipeline (2) is provided with the partially sealed district (3) of oil duct.
4. a kind of novel diesel machine crankshaft box ventilation system according to claim 3 is characterized in that described partially sealed district (3) is " U " type.
5. a kind of novel diesel machine crankshaft box ventilation system according to claim 4 is characterized in that the top of described " U " type seal area (3) is between the 15-25mm to the distance of bottom.
6. a kind of novel diesel machine crankshaft box ventilation system according to claim 5 is characterized in that the top of described " U " type seal area (3) is 20mm to the distance of bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201725718U CN201486622U (en) | 2009-06-15 | 2009-06-15 | Novel crankcase ventilation system of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201725718U CN201486622U (en) | 2009-06-15 | 2009-06-15 | Novel crankcase ventilation system of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201486622U true CN201486622U (en) | 2010-05-26 |
Family
ID=42425502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201725718U Expired - Fee Related CN201486622U (en) | 2009-06-15 | 2009-06-15 | Novel crankcase ventilation system of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201486622U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103097703A (en) * | 2010-09-16 | 2013-05-08 | 罗伯特·博世有限公司 | Method and device for diagnosing crankcase ventilation of internal combustion engines |
-
2009
- 2009-06-15 CN CN2009201725718U patent/CN201486622U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103097703A (en) * | 2010-09-16 | 2013-05-08 | 罗伯特·博世有限公司 | Method and device for diagnosing crankcase ventilation of internal combustion engines |
| CN103097703B (en) * | 2010-09-16 | 2016-08-10 | 罗伯特·博世有限公司 | For the method and apparatus diagnosing the exhausted by crankcase of internal combustion engine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20130615 |