CN107989713A - A kind of engine valve cover - Google Patents
A kind of engine valve cover Download PDFInfo
- Publication number
- CN107989713A CN107989713A CN201711450878.5A CN201711450878A CN107989713A CN 107989713 A CN107989713 A CN 107989713A CN 201711450878 A CN201711450878 A CN 201711450878A CN 107989713 A CN107989713 A CN 107989713A
- Authority
- CN
- China
- Prior art keywords
- gas
- oil
- bonnet body
- cavity
- oil separation
- 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
- 238000000926 separation method Methods 0.000 claims abstract description 80
- 230000008676 import Effects 0.000 claims abstract description 10
- 239000000446 fuel Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 9
- 239000003921 oil Substances 0.000 abstract description 63
- 239000010721 machine oil Substances 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000346 nonvolatile oil Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0021—Construction
-
- 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
- F01M13/0416—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil arranged in valve-covers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention provides a kind of engine valve cover, includes the bonnet body on top and the Oil-gas Separation cover board of lower part, the bonnet body is fixedly connected with Oil-gas Separation cover board and forms a cavity；Some gas oil separation structures are equipped with the cavity, the outer wall of the Oil-gas Separation cover board is equipped with oil and gas import, and air-fuel mixture gas enters the cavity from the oil and gas import；An adapter is installed with the top of the cover, the adapter connects the cavity and engine air inlet tube；The junction of the bonnet body and Oil-gas Separation cover board is additionally provided with a check valve, and the check valve connects the cavity and cylinder cap.The beneficial effect of the invention：The machine oil isolated by gas oil separation structure is flow back into cylinder cap using check valve, is re-used；And the gas isolated then is led in cylinder by taking over accordingly, by second-time burning, engine consumption is reduced.
Description
Technical field
The invention belongs to diesel engine realm, more particularly, to a kind of engine valve cover.
Background technology
Atmosphere pollution and machine oil consume excessively caused by discharging to reduce engine combustion exhaust gas directly into air, existing
Gas oil separation structure can all be increased in some engine structures, realize the recycling of machine oil and the second-time burning of exhaust gas, however,
Individually increase Oil-gas Separation component can cause the compact-sized, unsightly of engine, size of engine is become larger, be unsuitable for automobile
Lightweight, integrated developing direction.
The content of the invention
The technical problem that the invention solves is to provide a kind of engine valve cover, and oil gas is integrated with the cover
Separating mechanism so that engine structure has been simplified, and reduces the loss of machine oil.
In order to solve the above technical problems, the technical solution that the invention uses is：
A kind of engine valve cover, it is characterised in that include the bonnet body on top and the Oil-gas Separation of lower part
Cover board, the bonnet body are fixedly connected with Oil-gas Separation cover board and form a cavity, and the periphery of the bonnet body is installed with
The valve chamber cover is installed to engine cylinder and covered by some mounting holes, bolt by the mounting hole；
Be installed with an oiling portion at the top of the bonnet body, the oiling portion is equipped with a tank filler sleeve, the tank filler sleeve with
The cavity connection, the outer wall of the tank filler sleeve are equipped with screw thread, and fuel door is arranged on the tank filler sleeve by helicitic texture；
The outer wall of the Oil-gas Separation cover board is equipped with oil and gas import, and air-fuel mixture gas enters institute from the oil and gas import
State cavity；
Some gas oil separation structures are equipped with the cavity, the gas oil separation structure includes the first gas oil separation structure
With the second gas oil separation structure；First gas oil separation structure include be fixedly arranged on the bonnet body inner wall slot,
The first gas-oil separation baffle being plugged in the slot；First gas-oil separation baffle is equipped with some ventholes；
Second gas oil separation structure includes several the second gas-oil separation baffles being arranged in parallel, second oil
For gas skimming baffle with the inner wall of the bonnet body to be fixedly connected, second gas-oil separation baffle is wavy shaped configuration；
An adapter is installed with the top of the cover, the adapter connects the cavity and engine air inlet tube；
The junction of the bonnet body and Oil-gas Separation cover board is additionally provided with a check valve, described in the check valve connection
Cavity and cylinder cap.
Further, the bottom of the bonnet body is installed with a circle sealing ring, and the sealing ring is along the bonnet body
Bottom margin set.
Further, first gas oil separation structure is inclined to set relative to the bonnet body inner wall.
Further, it is described to take over the side for being located at the oiling portion.
The invention has the advantages and positive effects of：In the valve chamber cover body interior that the invention provides
Two gas oil separation structures are provided with, sufficient Oil-gas Separation can be played the role of, improve oil-gas separation efficiency；The machine isolated
Oil is flow back into cylinder cap using check valve, is re-used；And the gas isolated then is led in cylinder by taking over accordingly,
By second-time burning, the valve chamber cover of the integrated form is molded using plastic material, light weight, good airproof performance so that engine knot
Structure is compacter, and the performance of engine can be effectively improved while saving cost of manufacture.
Brief description of the drawings
Fig. 1 is the front view of valve chamber cover in embodiment；
Fig. 2 is the decomposition diagram of valve chamber cover in embodiment；
Fig. 3 is the bottom view of valve chamber cover in embodiment；
Fig. 4 is the partial schematic diagram of gas oil separation structure in embodiment；
Fig. 5 is the partial schematic diagram of check valve in embodiment；
Fig. 6 is the partial schematic diagram taken in embodiment.
In figure：1- bonnet bodies；11- sealing rings；12- oilings portion；13- takes over；The first gas oil separation structures of 14-；141-
Slot；The first gas-oil separation baffles of 142-；143- ventholes；The second gas oil separation structures of 15-；The second Oil-gas Separations of 151- are kept off
Plate；16- mounting holes；2- Oil-gas Separation cover boards；21- oil and gas imports；22- check valves.
Embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the invention can
To be mutually combined.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the invention and simplifies description, rather than instruction
Or imply that signified mechanism or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For the limitation to the invention.In addition, term " first ", " second " etc. are only used for description purpose, and it is not intended that instruction
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In the description of the invention, unless separately
It is described, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the invention
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments creates.
Embodiment
As shown in figures 1 to 6, a kind of engine valve cover is present embodiments provided, includes the bonnet body 1 on top
With the Oil-gas Separation cover board 2 of lower part, the bonnet body 1 is fixedly connected and is formed by welding procedure with Oil-gas Separation cover board 2
One cavity, the periphery of the bonnet body 1 are installed with some mounting holes 16, and bolt can be installed described by the mounting hole 16
Valve chamber cover to engine cylinder covers；In order to strengthen the leakproofness between the valve chamber cover and cylinder cap, in the cover
The bottom of body 1 is installed with a circle sealing ring 11, and the sealing ring 11 sets along the bottom margin of the bonnet body 1, protects
Demonstrate,prove when valve chamber cover is installed, it is complete with the sealing of the cylinder cap, prevent oil gas from revealing.
The top of the bonnet body 1 is installed with an oiling portion 12, and the oiling portion 12 passes through note with the bonnet body 1
Technique integral molding is moulded, the oiling portion 12 is equipped with a tank filler sleeve, and the tank filler sleeve is connected with the cavity, the tank filler sleeve
Outer wall be equipped with screw thread, fuel door is arranged on the tank filler sleeve by helicitic texture, and controls the closing and folding of tank filler sleeve,
So as to carry out the filling of machine oil, the design in oiling portion 12 make it that filling engine oil is more convenient.
Due to being constantly filled with the high temperature and pressure mixed gas of machine oil and air in engine, engine crankcase is added
Pressure, if being expelled directly out air, pollute the environment, while also increase the consumption of machine oil, therefore general engine structure
Respiratory organ structure will be increased and complete Oil-gas Separation, but this undoubtedly increases the size of engine so that engine structure is more
Add crowded.Therefore, in the present embodiment, some gas oil separation structures are equipped with the cavity of the valve chamber cover, play respirator
Effect, realize oil gas high efficiency separation；At the same time, the outer wall of the Oil-gas Separation cover board 2 is equipped with oil and gas import 21,
The air-fuel mixture gas of high temperature and pressure can enter the cavity from the oil and gas import 21, and then be separated；
The gas oil separation structure includes the first gas oil separation structure 14 and the second gas oil separation structure 15, and described first
Gas oil separation structure 14 includes the slot 141 being fixedly arranged on 1 inner wall of bonnet body, is plugged in the slot 141
First gas-oil separation baffle 142, first gas oil separation structure 14 incline at an angle relative to 1 inner wall of bonnet body
Tiltedly set, first gas-oil separation baffle 142 is equipped with some ventholes 143, passes through first oil gas in mixed oil and gas
During skimming baffle 142, oil, which is hit along first gas-oil separation baffle 142, to be slid to cavity, described in gas process
Venthole 143 flow to the second gas oil separation structure 15, and first gas oil separation structure 14 is relative to 1 inner wall of bonnet body
The design for having certain angle of inclination can increase the active area of first gas-oil separation baffle 142, so as to improve oil gas point
From efficiency；
Second gas oil separation structure 15 includes several the second gas-oil separation baffles 151 being arranged in parallel, described
With the inner wall of the bonnet body 1 to be fixedly connected, second gas-oil separation baffle 151 is second gas-oil separation baffle 151
The problem of wavy shaped configuration, the gas come out from first gas oil separation structure 14 is due to oil-gas separation efficiency, can also carry one
Fixed oil, therefore can further be separated by the shock of second gas-oil separation baffle 151.
The top of the bonnet body 1 is installed with an adapter 13, and the adapter 13 is connected with the cavity, the adapter 13
The side in the oiling portion 12 is located at, after the valve chamber cover is arranged on cylinder cap, the adapter 13 and engine charge
Pipe connects, and enters in cylinder, carries out again by the adapter 13 by the separated gas of the gas oil separation structure
Second-time burning.
The junction of the bonnet body 1 and Oil-gas Separation cover board 2 is installed with a check valve 22, and the check valve 22 connects
Lead to the cavity and cylinder cap, can be flow at the check valve 22 by the separated oil of gas oil separation structure in the cavity, and
It is back to by check valve 22 in cylinder cap, further flow to oil sump, then be re-used, solve that machine oil is easily lost asks
Topic.
When it is implemented, the bonnet body 1 is welding as one with Oil-gas Separation cover board 2 by welding manner, by described
The valve chamber cover is installed to engine cylinder and covered by mounting hole 16, ensures that sealing ring 11 can realize that the tight of the two is matched somebody with somebody
Close；The adapter 13 is connected with the air inlet pipe of engine, and the check valve 22 is connected with the cylinder cap, need not carry out machine oil
During filling, the tank filler sleeve in the oiling portion 12 is closed with fuel door, when engine is worked, between in engine
Gap inevitably occurs so that the fuel-air mixture of high temperature and pressure can be full of in cavaera, fuel-air mixture passes through the oil
Gas import 21 enters in the cavity, after two gas oil separation structures of the cavity are separated, by separated oil stream
At to the check valve 22, further flow back into by check valve 22 in cylinder cap, and then flow back into oil sump, be used again；Quilt
Separated gas is then flow to the air inlet pipe of cylinder by the adapter 13, is further flow in cylinder, carries out second-time burning.
Gas oil separation structure is integrated to the valve chamber cover by therefore the invention so that engine structure more steps up
Gather, saved cost of manufacture, while the valve chamber cover takes dual Oil-gas Separation, significantly improves the height of Oil-gas Separation
Efficiency, gas-oil separation baffle can also play the role of the reinforcing rib of valve chamber cover at the same time, improve the structural strength of the cover.
The foregoing is merely the preferred embodiment of the invention, is not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on, should be included in the invention
Protection domain within.
Claims (4)
1. a kind of engine valve cover, it is characterised in that include the bonnet body on top and the oil-gas separation cover of lower part
Plate, the bonnet body is fixedly connected with Oil-gas Separation cover board and forms a cavity, if the periphery of the bonnet body is installed with
The valve chamber cover is installed to engine cylinder and covered by dry mounting hole, bolt by the mounting hole；
Be installed with an oiling portion at the top of the bonnet body, the oiling portion is equipped with a tank filler sleeve, the tank filler sleeve with it is described
Cavity connects, and the outer wall of the tank filler sleeve is equipped with screw thread, and fuel door is arranged on the tank filler sleeve by helicitic texture；
The outer wall of the Oil-gas Separation cover board is equipped with oil and gas import, and air-fuel mixture gas enters the chamber from the oil and gas import
Body；
It is equipped with some gas oil separation structures in the cavity, the gas oil separation structure includes the first gas oil separation structure and the
Two gas oil separation structures；First gas oil separation structure includes the slot being fixedly arranged on the bonnet body inner wall, grafting
In the first gas-oil separation baffle in the slot；First gas-oil separation baffle is equipped with some ventholes；
Second gas oil separation structure includes several the second gas-oil separation baffles being arranged in parallel, second oil gas point
From baffle with the inner wall of the bonnet body to be fixedly connected, second gas-oil separation baffle is wavy shaped configuration；
An adapter is installed with the top of the cover, the adapter connects the cavity and engine air inlet tube；
The junction of the bonnet body and Oil-gas Separation cover board is additionally provided with a check valve, and the check valve connects the cavity
With cylinder cap.
2. a kind of engine valve cover as claimed in claim 1, it is characterised in that the bottom of the bonnet body is fixed
There is a circle sealing ring, the sealing ring is set along the bottom margin of the bonnet body.
A kind of 3. engine valve cover as claimed in claim 1, it is characterised in that the first gas oil separation structure phase
It is inclined to set for the bonnet body inner wall.
4. a kind of engine valve cover as claimed in claim 1, it is characterised in that the adapter is located at the oiling portion
Side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711450878.5A CN107989713A (en) | 2017-12-27 | 2017-12-27 | A kind of engine valve cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711450878.5A CN107989713A (en) | 2017-12-27 | 2017-12-27 | A kind of engine valve cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107989713A true CN107989713A (en) | 2018-05-04 |
Family
ID=62042434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711450878.5A Pending CN107989713A (en) | 2017-12-27 | 2017-12-27 | A kind of engine valve cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107989713A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610349A (en) * | 2021-01-06 | 2021-04-06 | 广西方鑫技术有限公司 | Welding structure for plastic cylinder cover cap |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100126479A1 (en) * | 2008-11-24 | 2010-05-27 | Toyota Motor Engineering & Manufacturing North America, Inc. | Oil separator |
| JP2011122478A (en) * | 2009-12-09 | 2011-06-23 | Mahle Filter Systems Japan Corp | Cylinder head cover structure of internal combustion engine |
| CN102146824A (en) * | 2011-04-29 | 2011-08-10 | 淮阴工学院 | Crankcase ventilation system for engine |
| CN202073653U (en) * | 2011-04-25 | 2011-12-14 | 奇瑞汽车股份有限公司 | Valve chamber cover |
| CN202789013U (en) * | 2012-08-20 | 2013-03-13 | 奇瑞汽车股份有限公司 | Oil-gas separating system for crankcase |
| CN203685410U (en) * | 2013-12-20 | 2014-07-02 | 沈阳航天新光汽车零部件有限公司 | Plastic cylinder head cover cap for automobile engine |
| CN104100332A (en) * | 2014-08-04 | 2014-10-15 | 安徽江淮汽车股份有限公司 | Engine cylinder cover shield and crankcase ventilation system |
| CN106194489A (en) * | 2016-08-31 | 2016-12-07 | 美嘉帕拉斯特汽车零部件（上海）有限公司 | Camshaft cover cap |
-
2017
- 2017-12-27 CN CN201711450878.5A patent/CN107989713A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100126479A1 (en) * | 2008-11-24 | 2010-05-27 | Toyota Motor Engineering & Manufacturing North America, Inc. | Oil separator |
| JP2011122478A (en) * | 2009-12-09 | 2011-06-23 | Mahle Filter Systems Japan Corp | Cylinder head cover structure of internal combustion engine |
| CN202073653U (en) * | 2011-04-25 | 2011-12-14 | 奇瑞汽车股份有限公司 | Valve chamber cover |
| CN102146824A (en) * | 2011-04-29 | 2011-08-10 | 淮阴工学院 | Crankcase ventilation system for engine |
| CN202789013U (en) * | 2012-08-20 | 2013-03-13 | 奇瑞汽车股份有限公司 | Oil-gas separating system for crankcase |
| CN203685410U (en) * | 2013-12-20 | 2014-07-02 | 沈阳航天新光汽车零部件有限公司 | Plastic cylinder head cover cap for automobile engine |
| CN104100332A (en) * | 2014-08-04 | 2014-10-15 | 安徽江淮汽车股份有限公司 | Engine cylinder cover shield and crankcase ventilation system |
| CN106194489A (en) * | 2016-08-31 | 2016-12-07 | 美嘉帕拉斯特汽车零部件（上海）有限公司 | Camshaft cover cap |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610349A (en) * | 2021-01-06 | 2021-04-06 | 广西方鑫技术有限公司 | Welding structure for plastic cylinder cover cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20180504 |