CN106194331A - A kind of engine with supercharger crankcase ventilation system - Google Patents
A kind of engine with supercharger crankcase ventilation system Download PDFInfo
- Publication number
- CN106194331A CN106194331A CN201610866010.2A CN201610866010A CN106194331A CN 106194331 A CN106194331 A CN 106194331A CN 201610866010 A CN201610866010 A CN 201610866010A CN 106194331 A CN106194331 A CN 106194331A
- Authority
- CN
- China
- Prior art keywords
- supercharger
- engine
- induction hose
- air induction
- 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.)
- Pending
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 35
- 230000006698 induction Effects 0.000 claims abstract description 26
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000013536 elastomeric material Substances 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 239000002912 waste gas Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- 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
- F01M2013/0077—Engine parameters used for crankcase breather systems
- F01M2013/0083—Crankcase pressure
Abstract
The invention discloses a kind of engine with supercharger crankcase ventilation system, electromotor includes air filter, valve chamber cover, supercharger, triton pipe, Pcv valve and air induction hose, and wherein, a triton pipe is connected with air induction hose by pipeline；On the pipeline that triton pipe is connected with air induction hose, arranging tee T, two of which port is connected with triton pipe and air induction hose respectively, and another port is connected with supercharger.Use technique scheme, by the common effect of three pipelines, coordinate Pcv valve to be adjusted crankcase pressure controlling, make the suitable scope that crankcase pressure keeps, solve the problem that electromotor full speed, full load lower crankcase negative pressure are excessive；The processing technology of its structure is more ripe simple, and the assembly manipulation mode of flexible pipe and each joint is with other pipelines on electromotor, without particular/special requirement, simple to operate, it is easy to implement；It is applicable to the small displacement engine with supercharger under different piston air leakage.
Description
Technical field
The invention belongs to the technical field of automobile engine construction.More particularly it relates to an gasoline supercharging is sent out
Motivation crankcase ventilation system.
Background technology
Along with the dynamic property of automobile is required to promote day by day by people, the low-speed dynamic of automobile is required more and more higher,
But along with the increase of market automobile pollution, in order to adapt to the strictest emission regulation demands, simultaneously in order to drop to greatest extent
The consumption of low bioenergy, small displacement engine with supercharger be increasingly becoming each automobile industry exploitation main flow, the type electromotor because of
Compact be easy to arrange, electromotor is common for horizontal in car load front deck, and arrangement only has two kinds: inlet manifold forward or
Exhaust manifold is forward.
Owing to small passenger car front deck arrangement space grid limited, front air inlet sectional area is relatively big, crankcase ventilation pipeline exists
Moving towards the reason such as unreasonable in front deck, vehicle continuously drives in extremely cold area will be occurred because water steams in crankcase ventilation pipeline
Air cooling is solidifying and freezes, and accumulates gradually blocking crankcase ventilation pipeline over time, causes crankcase pressure abruptly increase, electromotor
Crankshaft oil seals etc. seal key position permeability, may result in engine oil seal and be rushed out time serious, and electromotor damages because lacking lubrication
Ruin.
Crankcase ventilation system uses heated coupling can effectively solve crankcase bleed pipe road ice formation issues.But, heating
The material temperature rise of joint is linear with the working time, i.e. engine operating duration is the longest, and the temperature of heating material is the highest,
The temperature of material itself is uncontrolled, thus accelerates to be attached thereto the aging of the aging of parts, especially non-metal workpiece, part
Nonmetallic connectors can cause part aging because temperature is too high and damage, and causes serious consequence；On the other hand, because of heated coupling material
The particularity of material, increases heated coupling, the expense of each links such as the buying of its part, logistics, assembling, all can cause single vehicle cost
Rising.
The crankcase ventilation system of each auto vendor small displacement engine with supercharger is generally arranged as two paths, a route gas
Door room cover cap (built-in labyrinth type oil-gas separator) connect Pcv valve access inlet manifold, another route valve chamber cover connect into
Gas flexible pipe.This connected mode is through many wheel stand verification experimental verifications, although meet crankcase ventilation system performance requirement, but,
Being connected air induction hose layout by electromotor affected at layout and the crankcase bleed pipe of car load front deck, this structure is in extremely cold condition
Under still exist pipeline freeze risk.
For the problems referred to above, take the principle of heat based on crankcase ventilation pipeline wind sheltering, can adopt the technical scheme that: will enter
Crankcase ventilation joint on gas flexible pipe moves on supercharger pressure shell, thus the heat solution crankcase utilizing waste gas to transmit leads to
The ice formation issues of wind joint, and this kind of structure is verified in crankcase ventilation system bench test, in electromotor full speed, full load
There is, when running under operating mode, the problem that crankcase negative pressure is excessive.
Summary of the invention
The present invention provides a kind of engine with supercharger crankcase ventilation system, its objective is to solve engine with supercharger triton system
Pipeline freezes and crankcase negative pressure problems of too.
To achieve these goals, the technical scheme that the present invention takes is:
Engine with supercharger crankcase ventilation system of the present invention, wherein, described electromotor includes air filter, gas
Door room cover cap, supercharger, triton pipe, Pcv valve and air induction hose, wherein, a triton pipe is soft with described air inlet by pipeline
Pipe connects；On the pipeline that described triton pipe is connected with described air induction hose, arranging tee T, two of which port is respectively
Being connected with triton pipe and air induction hose, another port is connected with supercharger.
Described valve cover is covered with labyrinth, is provided with gs-oil separator in the position in described labyrinth.
Described tee T uses metal material, through mould and welding procedure molding.
Described tee T is one-body molded with air induction hose.
The crankcase bleed pipe being connected with described tee T uses elastomeric material extrusion molding.
The present invention uses technique scheme, by the common effect of three pipelines, coordinates Pcv valve to crankcase pressure
Be adjusted controlling, make the suitable scope that crankcase pressure keeps, solve electromotor at full speed, full load lower crankcase negative
Press through big problem；The processing technology of its structure is more ripe simple, flexible pipe and the same electromotor of assembly manipulation mode of each joint
On other pipelines, without particular/special requirement, simple to operate, it is easy to implement；It is applicable to the small displacement supercharging under different piston air leakage
Electromotor.
Accompanying drawing explanation
Content shown in accompanying drawing and the labelling in figure are briefly described as follows:
Fig. 1 is the crankcase ventilation system structural representation of the present invention；
Figure is labeled as:
1, oil sump, 2, framework, 3, cylinder block, 4, cylinder head, 5, valve chamber cover, 6, labyrinth, 7, triton pipe, 8, PCV
Valve, 9, triton pipe, 10, inlet manifold, 11, supercharger, 12, air induction hose, 13, air filter, 14, tee T.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, the detailed description of the invention of the present invention is made further details of
Illustrate, to help those skilled in the art that inventive concept, the technical scheme of the present invention are had more complete, accurate and deep reason
Solve.
The structure of the present invention as expressed by Fig. 1, for a kind of engine with supercharger crankcase ventilation system, described electromotor
Including air filter 13, valve chamber cover 5, supercharger 11, triton pipe 7, triton pipe 9, Pcv valve 8 and air induction hose 12, its
In, a triton pipe 7 is connected with described air induction hose 12 by pipeline.
The present invention is a kind of new crankcase ventilation system arrangement form, mainly solves three big problems: the first, solve supercharging
The problem that engine crankshaft ventilation system pipeline freezes；The second, the crankcase negative pressure problems of too solved；3rd, cancellation adds
Hot joint.
In order to solve the problem of prior art existence and overcome its defect, it is achieved solve engine with supercharger triton system pipeline
Freezing and the goal of the invention of crankcase negative pressure problems of too, the technical scheme that the present invention takes is:
As it is shown in figure 1, engine with supercharger crankcase ventilation system of the present invention, at described triton pipe 7 with described
On the pipeline that air induction hose 12 connects, arranging tee T 14, two of which port connects with triton pipe 7 and air induction hose 12 respectively
Connecing, another port is connected with supercharger 11.
On the basis of keeping original two crankcase ventilation structures, the crankcase ventilation joint on supercharger 11 is made into
Three-port structure, increases by a route air induction hose 12 and connects the path of supercharger 11, as QI invigorating path.In engine turbine supercharging
Device pressure shell side pressure dress, for the metal tee T 14 of crankcase ventilation, increases air induction hose ventilation joint to turbocharger pressure shell
The compensation path of end crankcase ventilation metal tee T, i.e. relative to tradition small displacement engine with supercharger crankcase ventilation system
Pipeline is arranged, increases by a road and compensates path.
Owing to adding this QI invigorating path, when electromotor runs under full speed, full load mode, can be by this path conduct
Air induction hose 12 connects supercharger 11 and carries out gas compensation, thus solves electromotor full speed, full load lower crankcase negative pressure mistake
Big problem.
The present invention is directed to the crankcase ventilation system performance requirement of above-mentioned gasoline supercharging engine, arrange as shown in Figure 1
Crankcase ventilation system, crankcase waste gas is circulated by both direction according to the different load residing for electromotor:
Waste gas when electromotor is in low speed, underload moves towards:
Valve chamber cover 5 → Pcv valve, 8 → inlet manifold, 10 → combustor；
Supplement fresh air, supercharger 11 → valve chamber cover 5 simultaneously, reconstitute and be recycled into combustor；
Waste gas when electromotor is in full speed full load moves towards:
Valve chamber cover 5 → tee T, 14 → supercharger, 11 → inlet manifold, 10 → combustor；Balance crankshaft case pressure simultaneously
Power, now the direction of motion of fresh air is: air induction hose 12 → tee T, 14 → supercharger 11.
Described valve chamber cover 5 is provided with labyrinth 6, is provided with gs-oil separator in the position in described labyrinth 6.
As it is shown in figure 1, carry out Oil-gas Separation when crankcase waste gas flows through valve chamber cover 5 at labyrinth 6, giving up after separation
Gas Jing San Road crankcase bleed pipe burns in entering into engine aspirating system, and then entrance cylinder again；By being total to of three pipelines
Same-action, coordinates Pcv valve 8 to be adjusted crankcase pressure controlling, makes the suitable scope that crankcase pressure keeps.
Described tee T 14 uses metal material, through mould and welding procedure molding.
Described tee T 14 is one-body molded with air induction hose 12.
Metal tee T 14 on supercharger pressure shell of the present invention uses the technique such as mould molding and welding；Air induction hose
Ventilation joint on 12 can be one-body molded with air induction hose；Connected crankcase bleed pipe 7 tunnel uses elastomeric material extrusion
Molding.
The crankcase bleed pipe 7 being connected with described tee T 14 uses elastomeric material extrusion molding.
Above-mentioned each parts processing technology is more ripe simple, and the assembly manipulation mode of flexible pipe and each joint is with on electromotor
Other pipelines, without particular/special requirement, simple to operate, it is easy to implement.
Crankcase ventilation system structure of the present invention can be by change Pcv valve 8 flow and supercharger end metal tee T
The data such as the internal diameter of 14, it is adaptable to the small displacement engine with supercharger under different piston air leakages.
Above in conjunction with accompanying drawing, the present invention is exemplarily described, it is clear that the present invention implements not by aforesaid way
Restriction, as long as have employed the method design of the present invention and the improvement of various unsubstantialities that technical scheme is carried out, or without changing
Enter and design and the technical scheme of the present invention are directly applied to other occasion, all within protection scope of the present invention.
Claims (5)
1. an engine with supercharger crankcase ventilation system, described electromotor includes air filter (13), valve chamber cover
(5), supercharger (11), triton pipe (7,9), Pcv valve (8) and air induction hose (12), wherein, a triton pipe (7) passes through pipeline
It is connected with described air induction hose (12)；It is characterized in that: be connected with described air induction hose (12) at described triton pipe (7)
Pipeline on, tee T (14) is set, two of which port is connected with triton pipe (7) and air induction hose (12) respectively, another
Port is connected with supercharger (11).
2. according to the engine with supercharger crankcase ventilation system described in claim 1, it is characterised in that: described valve chamber cover
(5) it is provided with labyrinth (6), is provided with gs-oil separator in the position in described labyrinth (6).
3. according to the engine with supercharger crankcase ventilation system described in claim 1, it is characterised in that: described tee T (14)
Use metal material, through mould and welding procedure molding.
4. according to the engine with supercharger crankcase ventilation system described in claim 1, it is characterised in that: described tee T (14)
One-body molded with air induction hose (12).
5. according to the engine with supercharger crankcase ventilation system described in claim 1, it is characterised in that: with described tee T
(14) crankcase bleed pipe (7) connected uses elastomeric material extrusion molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610866010.2A CN106194331A (en) | 2016-09-30 | 2016-09-30 | A kind of engine with supercharger crankcase ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610866010.2A CN106194331A (en) | 2016-09-30 | 2016-09-30 | A kind of engine with supercharger crankcase ventilation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106194331A true CN106194331A (en) | 2016-12-07 |
Family
ID=57521339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610866010.2A Pending CN106194331A (en) | 2016-09-30 | 2016-09-30 | A kind of engine with supercharger crankcase ventilation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106194331A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022151A (en) * | 2020-01-07 | 2020-04-17 | 中国重汽集团济南动力有限公司 | Crankcase ventilation system of heavy natural gas engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924308A (en) * | 2005-08-29 | 2007-03-07 | 奇瑞汽车有限公司 | Engine crankshaft ventilation system |
| CN201116481Y (en) * | 2007-05-11 | 2008-09-17 | 北汽福田汽车股份有限公司 | Internal combustion engine and crankcase ventilating device thereof |
| US7775198B2 (en) * | 2008-03-04 | 2010-08-17 | Toyota Motor Engineering & Manufacturing North America, Inc. | Two-way PCV valve for turbocharged engine PCV system |
| CN102251827A (en) * | 2010-05-17 | 2011-11-23 | 通用汽车环球科技运作公司 | Engine including positive crankcase ventilation |
| CN103930656A (en) * | 2011-11-15 | 2014-07-16 | 丰田自动车株式会社 | Blow-by gas ventilation device |
| CN204646361U (en) * | 2015-02-27 | 2015-09-16 | 上海通用汽车有限公司 | A kind of engine crankshaft ventilation system |
-
2016
- 2016-09-30 CN CN201610866010.2A patent/CN106194331A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924308A (en) * | 2005-08-29 | 2007-03-07 | 奇瑞汽车有限公司 | Engine crankshaft ventilation system |
| CN201116481Y (en) * | 2007-05-11 | 2008-09-17 | 北汽福田汽车股份有限公司 | Internal combustion engine and crankcase ventilating device thereof |
| US7775198B2 (en) * | 2008-03-04 | 2010-08-17 | Toyota Motor Engineering & Manufacturing North America, Inc. | Two-way PCV valve for turbocharged engine PCV system |
| CN102251827A (en) * | 2010-05-17 | 2011-11-23 | 通用汽车环球科技运作公司 | Engine including positive crankcase ventilation |
| CN103930656A (en) * | 2011-11-15 | 2014-07-16 | 丰田自动车株式会社 | Blow-by gas ventilation device |
| CN204646361U (en) * | 2015-02-27 | 2015-09-16 | 上海通用汽车有限公司 | A kind of engine crankshaft ventilation system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022151A (en) * | 2020-01-07 | 2020-04-17 | 中国重汽集团济南动力有限公司 | Crankcase ventilation system of heavy natural gas engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |
|
| RJ01 | Rejection of invention patent application after publication |