CN106703937A - Oil-gas separation system for engine - Google Patents
Oil-gas separation system for engine Download PDFInfo
- Publication number
- CN106703937A CN106703937A CN201611264472.3A CN201611264472A CN106703937A CN 106703937 A CN106703937 A CN 106703937A CN 201611264472 A CN201611264472 A CN 201611264472A CN 106703937 A CN106703937 A CN 106703937A
- Authority
- CN
- China
- Prior art keywords
- oil
- engine
- pipe
- return pipe
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0444—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with means for accommodating movement or position of engines
Abstract
The invention discloses an oil-gas separation system for an engine. The oil-gas separation system comprises an oil-gas separator, an oil return pipe and a liquid seal pipe, wherein the oil-gas separator is used for filtering piston leakage gases containing organic oil particles in the engine operating process and is connected with a cylinder head cover through an air inlet pipe; the upper end of the oil return pipe is communicated with the bottom of the oil-gas separator; and the liquid seal pipe is arranged at the lower end of the oil return pipe and communicated with a cylinder body or a crankcase of the engine. According to the oil-gas separation system for the engine disclosed by the invention, the liquid seal structure is formed in the tail end of the oil return pipe, so that the engine does not need to be directly inserted into an oil surface of an oil sump in a limited inclination angle and a normal crankcase operating pressure range, smooth oil return of a crankcase ventilating system can be realized, and normal operation of the engine is ensured.
Description
Technical field
The present invention relates to engine oil gas separation field, more particularly to a kind of oil and gas separating system of engine.
Background technology
In engine operation process, the blow-by of piston containing organic oil particle, by the oil gas point of crankcase ventilation system
After device filtering, a part of machine oil can be separated.This part machine oil can be by a connection crankcase ventilation system and oily bottom
The pipe (i.e. the oil return pipe of gs-oil separator) of shell, flows back to oil sump.As shown in figure 1, the top of the oil return pipe 1 of gs-oil separator
The bottom of gs-oil separator 2 is connected, is directly communicated with external engine air, below the machine oil face of bottom insertion oil sump 3.
Under normal circumstances, because the oil return pipe lower end of gs-oil separator is immersed in machine oil, so engine interior piston
Gas leakage can not directly be let out by the oil return pipe of gs-oil separator.But under harsh conditions, if oil sump inner engine oil is very few,
Or under engine inclination of jolting is larger, or crankshaft counter balance is to the oil sump machine oil disturbance state such as excessive, we can see
Going out gs-oil separator oil return pipe bottom can expose oil sump machine oil face, and blow-by of piston of the engine interior containing organic oil particle leads to
Cross the gs-oil separator oil return pipe and external engine air is just directly communicated, it may occur that blow-by of piston just passes through without filtering
Gs-oil separator oil return pipe is expelled directly out the problem of engine, causes the increase of consumption of lubricating oil；In addition, working as gs-oil separator oil return
Higher than in the case of machine oil face, flow velocity can be higher when a large amount of blow-by of pistons are flowed out by gs-oil separator oil return pipe for pipe bottom,
The machine oil for causing gs-oil separator to filter out is directly blown to external engine, also results in the increase of consumption of lubricating oil.
The information for being disclosed in the background section is merely intended to increase the understanding to general background of the invention, without answering
In being considered as recognizing or imply in any form that the information structure has been the prior art well known to persons skilled in the art.
The content of the invention
It is an object of the invention to provide a kind of oil and gas separating system of simple and reasonable engine, the engine
Oil and gas separating system ensured in the range of Engine Limit angle of inclination and normal work crankcase pressure, can realize crankcase
The oil return of ventilating system is unobstructed and ensures that engine normally runs work.
To achieve the above object, the invention provides the oil and gas separating system of engine, including：Gs-oil separator, its use
Contain the blow-by of piston of organic oil particle in engine operation process in filtering, the gs-oil separator passes through air inlet pipe and cylinder head
Cover connection；Oil return pipe, its upper end connects with the bottom of the gs-oil separator；And liquid sealing pipe, it is arranged on the oil return pipe
Lower end, and connected with the cylinder block or crankcase of engine.
Preferably, in above-mentioned technical proposal, liquid sealing pipe is U-tube or M shape pipes.
Preferably, in above-mentioned technical proposal, liquid sealing pipe is connected using interference fit with cylinder block.
Preferably, in above-mentioned technical proposal, liquid sealing pipe is connected with the oil return pipe using sebific duct, and is fixed using hoop.
Compared with prior art, the present invention has the advantages that：The oil and gas separating system of the engine is by it
Oil return pipe end sets fluid-tight structure, is ensuring in the range of Engine Limit angle of inclination and normal work crankcase pressure, no
Need to be inserted directly into below oil sump pasta, i.e., can realize that the oil return of crankcase ventilation system is unobstructed and ensure that engine is normal
Operation work.
Brief description of the drawings
Fig. 1 is the structural representation of the oil and gas separating system of available engine.
Fig. 2 is the structural representation of the oil and gas separating system of engine of the invention.
Fig. 3 is the liquid sealing pipe structural representation of the oil and gas separating system of engine of the invention.
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the invention is described in detail, it is to be understood that guarantor of the invention
Shield scope is not limited by specific embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " including " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other units
Part or other parts.
As shown in Fig. 2 the oil and gas separating system of engine according to the specific embodiment of the invention is specifically included：Oil gas
Separator 4, air inlet pipe 5, oil return pipe 6 and liquid sealing pipe 7, wherein, gs-oil separator 4 is connected by air inlet pipe 5 with valve mechanism cover 8,
The top of oil return pipe 6 connects with the bottom of gs-oil separator 4, and so as to directly be communicated with external engine air, liquid sealing pipe 7 sets
Put in the bottom (end) of oil return pipe 6, connected with the cylinder block 9 or crankcase of engine, it is not necessary to be inserted directly into oil sump
Below pasta.The oil gas discharged from valve mechanism cover enters gs-oil separator 4 by air inlet pipe 5, is separated by gs-oil separator
During oil afterwards returns to liquid sealing pipe 7 from the oil return pipe 6 of bottom, oily bottom is then flow back into by parts such as cylinder block 9 or crankcases again
In shell 10.The oil and gas separating system of the engine sets fluid-tight structure by its oil return pipe end, is ensuring Engine Limit
In the range of angle of inclination and normal work crankcase pressure, i.e., can realize crankcase ventilation system oil return it is unobstructed and ensure hair
Motivation normally runs work.
Specifically, gs-oil separator 4 belongs to crankcase ventilation system, contains in engine operation process for filtering
The blow-by of piston of machine oil particle.One end of air inlet pipe 5 is connected with valve mechanism cover 8, and the other end is connected with gs-oil separator 4, is used for
Blow-by of piston containing organic oil particle in engine operation process is imported into gs-oil separator 4 to be filtered.
Oil return pipe 6 is vertically arranged, and its upper end connects with the bottom of gs-oil separator 4, so as to straight with external engine air
Connect and communicate, the machine oil that gs-oil separator 4 is separated flows back to oil sump by oil return pipe 6.
As shown in figure 3, liquid sealing pipe 7 is arranged on the lower end (end) of oil return pipe 6, and with the cylinder block 9 or bent axle of engine
Case is connected, and need not be inserted directly into below oil sump pasta.It is actually used that the height liquid seal of liquid sealing pipe 7 then depends on engine
During angle of inclination, practical service environment, and engine discharge capacity power situation.As long as ensureing vertical in engine
Incline, heel and any engine work applying working condition, trapped fuel with certain altitude is present.Discharged from valve mechanism cover
Oil gas by air inlet pipe 5 enter gs-oil separator 4, by gs-oil separator separation after oil returned to from the oil return pipe 6 of bottom
In liquid sealing pipe 7, then it is flow back into oil sump 10 by parts such as cylinder block 9 or crankcases again.The liquid sealing pipe 7 is ensuring to start
In the range of machine extreme tilt angles degree and normal work crankcase pressure, can realize that the oil return of crankcase ventilation system is unobstructed and true
Protect engine and normally run work, it is to avoid oil return pipe bottom can expose oil sump machine oil face, direct with engine interior chamber
Communicate, blow-by of piston directly flows directly out engine by gs-oil separator oil return pipe lower end, causes crankcase ventilation system work(
Can failure.
Preferably, the bottom of liquid sealing pipe 7 realizes the company with engine cylinder block or crankcase by any position of engine
Connect.So it is suitable for any engine arrangement.The connected mode of liquid sealing pipe 7 and cylinder block using interference fit or other
Mode is connected can be with as long as do not produce leakage, it is ensured that sealing.
Preferably, liquid sealing pipe 7 is U-tube or M shape pipes.Liquid sealing pipe 7 can be arranged on engine cylinder block or crankcase
Any position, as long as arrangement facilitates suitable position.Flexibility is very strong.
Preferably, connected using sebific duct between the oil return pipe 6 of liquid sealing pipe 7 and gs-oil separator, and fixed using hoop.
The oil gas discharged from valve mechanism cover, liquid sealing pipe is returned to by the oil after gs-oil separator separation from bottom oil return pipe
In 7, then it is flow back into oil sump by parts such as cylinder block or crankcases again.Liquid sealing pipe 7 can be designed with the shape, as long as ensuring
Effective sealing of the part such as the liquid sealing pipe 7 and cylinder block or crankcase.
To sum up, the oil and gas separating system of the engine sets fluid-tight structure by its oil return pipe end, is ensuring to start
In the range of machine extreme tilt angles degree and normal work crankcase pressure, it is not necessary to be inserted directly into below oil sump pasta, i.e., can
Realize that the oil return of crankcase ventilation system is unobstructed and ensure that engine normally runs work.
The foregoing description to specific illustrative embodiment of the invention be in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that certain principles of the invention and its reality should
With so that those skilled in the art can realize and using a variety of exemplaries of the invention and
A variety of selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (4)
1. a kind of oil and gas separating system of engine, it is characterised in that including：
Gs-oil separator, it is used to filter the blow-by of piston containing organic oil particle, the Oil-gas Separation in engine operation process
Device is connected by air inlet pipe with valve mechanism cover；
Oil return pipe, its upper end connects with the bottom of the gs-oil separator；And
Liquid sealing pipe, its lower end for being arranged on the oil return pipe, and connected with the cylinder block or crankcase of engine.
2. the oil and gas separating system of engine according to claim 1, it is characterised in that the liquid sealing pipe is U-tube or M
Shape pipe.
3. the oil and gas separating system of engine according to claim 1, it is characterised in that the liquid sealing pipe is matched somebody with somebody using interference
Conjunction mode is connected with cylinder block.
4. the oil and gas separating system of engine according to claim 3, it is characterised in that the liquid sealing pipe and the oil return
Pipe is connected using sebific duct, and is fixed using hoop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611264472.3A CN106703937A (en) | 2016-12-30 | 2016-12-30 | Oil-gas separation system for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611264472.3A CN106703937A (en) | 2016-12-30 | 2016-12-30 | Oil-gas separation system for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106703937A true CN106703937A (en) | 2017-05-24 |
Family
ID=58906403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611264472.3A Pending CN106703937A (en) | 2016-12-30 | 2016-12-30 | Oil-gas separation system for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106703937A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627938A (en) * | 2020-12-18 | 2021-04-09 | 一汽解放汽车有限公司 | Oil return system and oil return method thereof |
| CN114790952A (en) * | 2022-05-10 | 2022-07-26 | 广西玉柴动力股份有限公司 | Oil-gas separator for cylinder head cover with water jacket structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201092872Y (en) * | 2007-10-31 | 2008-07-30 | 重庆长安汽车股份有限公司 | Gas oil separation structure for internal combustion engine crankcase ventilation system |
| CN201705425U (en) * | 2010-06-04 | 2011-01-12 | 广西玉柴机器股份有限公司 | Oil return mechanism of crankshaft box ventilation device |
| JP5172382B2 (en) * | 2008-02-25 | 2013-03-27 | ダイキョーニシカワ株式会社 | Oil separator structure |
| CN103437855A (en) * | 2013-07-16 | 2013-12-11 | 东风朝阳朝柴动力有限公司 | Two-stage oil-gas separation diesel engine breathing system |
| CN203962099U (en) * | 2014-06-23 | 2014-11-26 | 安徽华菱汽车有限公司 | A kind of engine breathing system and motor |
| CN206309445U (en) * | 2016-12-30 | 2017-07-07 | 广西玉柴机器股份有限公司 | The oil and gas separating system of engine |
-
2016
- 2016-12-30 CN CN201611264472.3A patent/CN106703937A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201092872Y (en) * | 2007-10-31 | 2008-07-30 | 重庆长安汽车股份有限公司 | Gas oil separation structure for internal combustion engine crankcase ventilation system |
| JP5172382B2 (en) * | 2008-02-25 | 2013-03-27 | ダイキョーニシカワ株式会社 | Oil separator structure |
| CN201705425U (en) * | 2010-06-04 | 2011-01-12 | 广西玉柴机器股份有限公司 | Oil return mechanism of crankshaft box ventilation device |
| CN103437855A (en) * | 2013-07-16 | 2013-12-11 | 东风朝阳朝柴动力有限公司 | Two-stage oil-gas separation diesel engine breathing system |
| CN203962099U (en) * | 2014-06-23 | 2014-11-26 | 安徽华菱汽车有限公司 | A kind of engine breathing system and motor |
| CN206309445U (en) * | 2016-12-30 | 2017-07-07 | 广西玉柴机器股份有限公司 | The oil and gas separating system of engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627938A (en) * | 2020-12-18 | 2021-04-09 | 一汽解放汽车有限公司 | Oil return system and oil return method thereof |
| CN112627938B (en) * | 2020-12-18 | 2022-02-18 | 一汽解放汽车有限公司 | Oil return system and oil return method thereof |
| CN114790952A (en) * | 2022-05-10 | 2022-07-26 | 广西玉柴动力股份有限公司 | Oil-gas separator for cylinder head cover with water jacket structure |
| CN114790952B (en) * | 2022-05-10 | 2024-02-27 | 广西玉柴动力股份有限公司 | Oil-gas separator with water jacket structure for cylinder head cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |