CN209557063U - Crankcase ventilation mechanism and engine and automobile - Google Patents
Crankcase ventilation mechanism and engine and automobile Download PDFInfo
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- CN209557063U CN209557063U CN201920172055.9U CN201920172055U CN209557063U CN 209557063 U CN209557063 U CN 209557063U CN 201920172055 U CN201920172055 U CN 201920172055U CN 209557063 U CN209557063 U CN 209557063U
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Abstract
The utility model provides a kind of crankcase ventilation mechanism and engine and automobile, the crankcase ventilation mechanism of the utility model is applied on engine, it mainly include cylinder head, valve mechanism cover and side cover plate, wherein: cylinder head has the air intake duct with the combustion chamber of engine, and the air inlet by-path that one end is connected to air intake duct, and the other end of air inlet by-path is through on the upper surface of cylinder head；Valve mechanism cover covers on the upper surface of cylinder head, is equipped with pressure-regulating valve in valve mechanism cover, and be connected to the check valve of the gas outlet of pressure-regulating valve；Side cover plate is configured in the side of valve mechanism cover, and with the ipsilateral arrangement of air intake duct, the cavity of connection check valve and air inlet by-path is configured between side cover plate and valve mechanism cover.Crankcase ventilation mechanism described in the utility model, the connection structure of alternative sebific duct can also save space, save the cost to prevent sebific duct junction from there are problems that permeability and the risk that falls off.
Description
Technical field
The utility model relates to technical field of engines, in particular to a kind of crankcase ventilation mechanism.Meanwhile this is practical new
Type further relates to a kind of engine with the crankcase ventilation mechanism and a kind of automobile for being equipped with the engine.
Background technique
When the engine is working, the high pressure combustion mixture and burnt gas of combustion chamber, can more or less pass through piston group
Gap between cylinder is leak into crankcase, causes gas blowby.The ingredient of gas blowby is unburned fuel vapor, vapor and exhaust gas
Deng this can dilute machine oil, reduce the service performance of machine oil, accelerate the oxidation, rotten of machine oil.In addition, Water vapor condensation is in machine oil
In, it will form greasy filth clogged oil line, the sour gas in exhaust gas is mixed into lubricating system, will lead to the acceleration of engine part burn into
It is worn between part；In addition to this, gas blowby can also make the hypertonia of crankcase and destroy the sealing of crankcase, make engine oil leakage stream
It loses.
To prevent crankcase pressure excessively high, extends machine oil service life, reduce parts depreciation and corrosion, prevent engine from leaking
Oil, it is necessary to carry out crankcase ventilation.And in order to reduce pollution of the engine to atmosphere, crankcase ventilation system working method is general
To allow the not sufficient exhaust gas of burning to burn by the way that crankcase ventilation system is secondary into combustion chamber, avoiding pollution.
When concrete application, the gas being discharged via primary combustion by the exhaust duct of cylinder head first carries out Oil-gas Separation, and
It imported into isolated gas in the air intake duct of cylinder head by pressure-regulating valve, so that the gas after separation participates in secondary combustion
It burns.
On specific structure, pressure-regulating valve is connect with air intake duct by sebific duct, and the both ends of sebific duct are generally fixed using clip.
This kind of connection type, there are permeabilitys and the risk to fall off for sebific duct junction；In addition, arrangement sebific duct needs to occupy arrangement space.
Utility model content
In view of this, the utility model is directed to a kind of crankcase ventilation mechanism, to overcome pressure-regulating valve and air inlet
The deficiency that road is connected by sebific duct.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of crankcase ventilation mechanism is applied on engine comprising:
Cylinder head has and is connected to the air intake duct of the combustion chamber of the engine and one end with the air intake duct
Air inlet by-path, and the other end of the air inlet by-path is through on the upper surface of the cylinder head；
Valve mechanism cover covers on the upper surface of the cylinder head, and Yu Suoshu valve mechanism cover is equipped with pressure-regulating valve, with
And it is connected to the check valve of the gas outlet of the pressure-regulating valve；
Side cover plate, is configured in the side of the valve mechanism cover, and with the ipsilateral arrangement of the air intake duct, Yu Suoshu side cover plate
The cavity for being connected to the check valve and the air inlet by-path is configured between the valve mechanism cover.
Further, it is configured with lattice in Yu Suoshu cavity, because of the setting of the lattice, the cavity is separated into
The pressure stabilizing cavity being connected to the check valve, and the splitter cavity being connected to the air inlet by-path, and constructed on the lattice
There is the through-hole for being connected to the pressure stabilizing cavity and the splitter cavity.
Further, the volume of the pressure stabilizing cavity is 2-3 times for shunting cavity volume.
Further, the side cover plate and the valve mechanism cover welding are fixed on together, and the lattice includes being configured in
Side cover plate partition on the side cover plate, and the valve mechanism cover partition being configured in the valve mechanism cover.
Further, the quantity of the through-hole is identical as the quantity of the combustion chamber.
Further, the quantity of the air inlet by-path is identical as the quantity of the air intake duct.
Further, it is configured with the gas vent for being connected to the splitter cavity in Yu Suoshu valve mechanism cover, and the gas vent
Quantity Matching is arranged in the quantity of the air inlet by-path.
Further, oil-gas separation chamber, the air-fuel mixture entrance of the oil-gas separation chamber are constructed in Yu Suoshu valve mechanism cover
It is connected with the exhaust duct of the cylinder head, the air intake of the gas outlet of the oil-gas separation chamber and the pressure-regulating valve connects
It is logical.
Compared with the existing technology, the utility model has the advantage that
(1) crankcase ventilation mechanism described in the utility model is connected by being arranged between setting side cover plate and valve mechanism cover
The cavity of logical check valve and air inlet by-path, air inlet by-path is set in valve mechanism cover and is connected to air intake duct, therefore alternative glue
The connection structure of pipe can also save space to prevent sebific duct junction from there are problems that permeability and falling off risk, save at
This.
(2) cavity is divided into pressure stabilizing cavity and splitter cavity by setting lattice, the secondary air-flow into combustion chamber can be played compared with
Good pressure stabilizing and shunting effect.
(3) volume of pressure stabilizing cavity is 2-3 times for shunting cavity volume, can preferably improve voltage regulation result.
(4) lattice includes side cover plate partition and valve mechanism cover partition, easy to process.
(5) quantity of through-hole and the quantity of combustion chamber are identical, are conducive to air-flow Uniform Flow.
(6) quantity of air inlet by-path and the quantity of air intake duct are identical, are further conducive to air-flow Uniform Flow.
(7) gas vent is set on cylinder cover, there is preferable shunting effect.
The another object of the utility model is to propose a kind of engine, be configured on Yu Suoshu engine as described above
Crankcase ventilation mechanism.
The engine of the utility model and crankcase ventilation mechanism above-mentioned are having the same beneficial compared with the existing technology
Effect, details are not described herein.
Meanwhile the utility model additionally provides a kind of automobile, and engine as described above is equipped on Yu Suoshu vehicle body.
The automobile of the utility model can save engine occupied space, save the cost by installing engine as above.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.In
In attached drawing:
Fig. 1 is the structural schematic diagram of crankcase ventilation mechanism described in the utility model embodiment one；
Fig. 2 is the explosive view of the unassembled cylinder head of crankcase ventilation mechanism described in the utility model embodiment one；
Fig. 3 is the structural schematic diagram of valve mechanism cover described in the utility model embodiment one；
Fig. 4 is the structural schematic diagram of side cover plate described in the utility model embodiment one；
Fig. 5 is the cross-sectional view of Fig. 1；
Fig. 6 is the portion the A enlarged drawing of Fig. 5；
Description of symbols:
1- cylinder head, 2- valve mechanism cover, 3- side cover plate, 4- pressure-regulating valve, 5- check valve, 6- pressure stabilizing cavity, 7- splitter cavity,
8- drainage lumens；
101- air intake duct, 102- air inlet by-path；
201- oil-gas separation chamber, 202- valve mechanism cover partition, 203- gas vent
301- side cover plate partition, 302- through-hole, 303- pillar.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
Embodiment one
The present embodiment is related to a kind of crankcase ventilation mechanism, is applied on engine, as shown in Figure 1, it mainly includes gas
Cylinder cap 1, valve mechanism cover 2 and side cover plate 3, in which: cylinder head 1 has the air intake duct 101 with the combustion chamber of engine, and
The air inlet by-path 102 that one end is connected to air intake duct 101, and the other end of air inlet by-path 102 is through to the upper surface of cylinder head 1
On；Valve mechanism cover 2 covers on the upper surface of cylinder head 1, is equipped with pressure-regulating valve 4 in valve mechanism cover 2, and be connected to pressure
The check valve 5 of the gas outlet of force regulating valve 4；Side cover plate 3 is configured in the side of valve mechanism cover 2, and with the ipsilateral cloth of air intake duct 101
It sets, the cavity of connection check valve 5 and air inlet by-path 102 is configured between side cover plate 3 and valve mechanism cover 2.
It is described based on overall structure as above, and for the ease of being illustrated to the present embodiment, below first to cylinder head 1
Structure is specifically described, and the structure in cylinder head 1, which is improved, mainly increases air inlet by-path 102, to apply shown in Fig. 1
For the cylinder head 1 of four cylinder engine, combuster, combustion chamber are constructed between cylinder head 1 and cylinder block not shown in the figure
Quantity be four for being matched with the quantity of cylinder and being arranged.Air intake duct 101, other side structure are configured in the side of cylinder head 1
Exhaust duct not shown in the figure is made.On specific structure, the quantity of air intake duct 101 and the quantity of exhaust duct are four, and into
Air flue 101 and exhaust duct are matched with each combustion chamber setting respectively.
Air inlet by-path 102 above-mentioned is also four, and each air intake duct 101 is provided with an air inlet by-path 102, into
One end of gas by-path 102 is connected on the side wall of air intake duct 101, and the other end is through on the upper surface of cylinder head 1.The structure
In, the quantity of air inlet by-path 102 can also be set as other quantity.
The structure of the unassembled cylinder head 1 of the crankcase ventilation mechanism of the present embodiment is as shown in Fig. 2, side cover plate 3 is configured in
The side of valve mechanism cover 2.First combine Fig. 3, Fig. 5 and Fig. 6 that the structure of valve mechanism cover 2 is specifically described below.
On specific structure, in construction oil-gas separation chamber 201, the air-fuel mixture entrance of oil-gas separation chamber 201 in valve mechanism cover 2
It is connected with the exhaust duct of cylinder head 1, the gas outlet of oil-gas separation chamber 201 is connected to the air intake of pressure-regulating valve 4, pressure tune
The gas outlet of section valve 4 is connected to check valve 5, and in the structure, pressure-regulating valve 4 is preferably existing PRV valve.
Main improvement in valve mechanism cover 2 is, is provided with side cover plate 3, the present embodiment in the side of valve mechanism cover 2
In, side cover plate 3 and 2 welding of valve mechanism cover are fixed on together, also, side cover plate 3 and air intake duct 101 are set to the same side.The knot
In structure, it be fixed on together in addition to side cover plate 3 and valve mechanism cover 2 can be welded, other attachments also can be used certainly, such as
It is clamped, is bolted.
In order to form preferable guidance to air-flow, it is formed with cavity between side cover plate 3 and valve mechanism cover 2, and cavity
The length of length and cylinder head 1 is close.Specifically, in being configured with lattice in cavity, because of the setting of lattice, cavity is separated
For the pressure stabilizing cavity 6 being connected to check valve 5, and the splitter cavity 7 being connected to air inlet by-path 102, and in the company of being configured on lattice
The through-hole 302 of logical pressure stabilizing cavity 6 and splitter cavity 7.And preferable voltage regulation result, the volume of pressure stabilizing cavity 6 are 7 bodies of splitter cavity in order to obtain
Long-pending 2-3 times.
Specifically, lattice includes the side cover plate partition 301 being configured on side cover plate 3, and is configured in valve mechanism cover 2
On valve mechanism cover partition 202 make side cover plate partition 301 and valve mechanism cover partition when side cover plate 3 and valve mechanism cover 2 are assembled
Gap between 202 reduces as far as possible.
In the above structure, the top of pressure stabilizing cavity 6 has drainage lumens 8, so that the shape of side cover plate 3 is in inverted "T"-shaped, edge
The length direction of cylinder head 1, the location arrangements of drainage lumens 8 are equal to be conducive to air-flow in the middle part of the length direction of valve mechanism cover 2
Even dispersion.
In order to be conducive to air-flow Uniform Flow, as shown in fig. 4 to fig. 6, in the present embodiment, the quantity of through-hole 302 is and combustion
The quantity for burning room is four identical, also, through-hole 302 is pieced together and formed by valve mechanism cover partition 202 and side cover plate partition 301.This
Outside, the gap between the length direction of valve mechanism cover 2, adjacent through-hole 302 is equal with the gap between adjacent combustion chamber,
So that four through-holes 302 are uniformly distributed along the length direction of valve mechanism cover 2, air flow method is uniform.In the structure, through-hole 302 can
It is not pieced together and is formed by valve mechanism cover partition 202 and side cover plate partition 301, for example through-hole 302 can be only arranged at valve mechanism cover partition
On 202, or it can be only arranged on side cover plate partition 301；The quantity of through-hole 302 may be configured as other quantity, and adjacent through-hole
Gap between 302 may be alternatively provided as other numerical value.
In order to play preferable shunting effect, in the gas vent 203 for being configured with connection splitter cavity 7 in valve mechanism cover 2, and arrange
The quantity Matching of stomata 203 is arranged in the quantity of air inlet by-path 102, that is, adjacent is logical along the length direction of valve mechanism cover 2
Gap between hole 302 is equal with the gap between adjacent combustion chamber, so that length of four gas vents 203 along valve mechanism cover 2
Degree direction is uniformly distributed, and air flow method is uniform.In the structure, the quantity of gas vent 203 may be configured as other quantity, and adjacent
Gap between gas vent 203 may be alternatively provided as other numerical value.
Crankcase ventilation mechanism described in the present embodiment is connected to single by setting between setting side cover plate 3 and valve mechanism cover 2
To the cavity of valve 5 and air inlet by-path 102, air inlet by-path 102 is set in valve mechanism cover 2 and is connected to air intake duct 101, therefore can
The connection structure of sebific duct is substituted, to prevent sebific duct junction from there are problems that permeability and the risk that falls off, space can be also saved, save
About cost.
Finally it should be noted that, it is fixed in order to be conducive to check valve 5, in the present embodiment, in side cover plate 3 towards cylinder
The side of housing 2 is configured with pillar 303, fluted in the end structure of pillar 303, corresponds to groove, on pressure-regulating valve 4
It is configured with the protrusion that can be flush-mounted in groove, check valve 5 is set in protrusion, to make pillar during side cover plate 3 assembles
303 is fixed by check valve 5.
Embodiment two
The present embodiment is related to a kind of engine, and the crankcase ventilation as described in embodiment one is configured on Yu Suoshu engine
Mechanism.
The engine of the present embodiment and crankcase ventilation mechanism above-mentioned are having the same beneficial to effect compared with the existing technology
Fruit, details are not described herein.
Meanwhile the present embodiment is related to a kind of automobile, in being equipped with engine as described above on vehicle body.The vapour of the present embodiment
Vehicle can save engine occupied space, save the cost by installing engine as above.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of crankcase ventilation mechanism is applied on engine, characterized by comprising:
Cylinder head (1) has and the air intake duct (101) of the combustion chamber of the engine and one end and the air intake duct
(101) the air inlet by-path (102) being connected to, and the other end of the air inlet by-path (102) is through to the upper end of the cylinder head (1)
On face；
Valve mechanism cover (2), covers on the upper surface of the cylinder head (1), and Yu Suoshu valve mechanism cover (2) is adjusted equipped with pressure
Valve (4), and it is connected to the check valve (5) of the gas outlet of the pressure-regulating valve (4)；
Side cover plate (3), is configured in the side of the valve mechanism cover (2), and with the air intake duct (101) ipsilateral arrangement, in institute
It states and is configured with the connection check valve (5) and the air inlet by-path (102) between side cover plate (3) and the valve mechanism cover (2)
Cavity.
2. crankcase ventilation mechanism according to claim 1, it is characterised in that: it is configured with lattice in Yu Suoshu cavity,
Because of the setting of the lattice, the cavity is separated into the pressure stabilizing cavity (6) being connected to the check valve (5), and with it is described
The splitter cavity (7) of air inlet by-path (102) connection, and the pressure stabilizing cavity (6) and described point are connected in being configured on the lattice
Flow the through-hole (302) of chamber (7).
3. crankcase ventilation mechanism according to claim 2, it is characterised in that: the volume of the pressure stabilizing cavity (6) is described
2-3 times of splitter cavity (7) volume.
4. crankcase ventilation mechanism according to claim 2, it is characterised in that: the side cover plate (3) and the cylinder head
Cover (2) welding is fixed on together, and the lattice includes the side cover plate partition (301) being configured on the side cover plate (3), and
The valve mechanism cover partition (202) being configured on the valve mechanism cover (2).
5. crankcase ventilation mechanism according to claim 2, it is characterised in that: the quantity of the through-hole (302) with it is described
The quantity of combustion chamber is identical.
6. crankcase ventilation mechanism according to claim 2, it is characterised in that: the quantity of the air inlet by-path (102) with
The quantity of the air intake duct (101) is identical.
7. crankcase ventilation mechanism according to claim 2, it is characterised in that: Yu Suoshu valve mechanism cover is configured on (2)
It is connected to the gas vent (203) of the splitter cavity (7), and the quantity Matching of the gas vent (203) is in the air inlet by-path (102)
Quantity setting.
8. crankcase ventilation mechanism described in any one of -7 according to claim 1, it is characterised in that: Yu Suoshu valve mechanism cover
(2) oil-gas separation chamber (201) are constructed on, the air-fuel mixture entrance of the oil-gas separation chamber (201) and the row of the cylinder head (1)
Air flue is connected, and the gas outlet of the oil-gas separation chamber (201) is connected to the air intake of the pressure-regulating valve (4).
9. a kind of engine, it is characterised in that: be configured with crankshaft of any of claims 1-8 on Yu Suoshu engine
Case ventilating mechanisms.
10. a kind of automobile, the automobile has vehicle body, it is characterised in that: is equipped on Yu Suoshu vehicle body as claimed in claim 9
Engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920172055.9U CN209557063U (en) | 2019-01-31 | 2019-01-31 | Crankcase ventilation mechanism and engine and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920172055.9U CN209557063U (en) | 2019-01-31 | 2019-01-31 | Crankcase ventilation mechanism and engine and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209557063U true CN209557063U (en) | 2019-10-29 |
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ID=68310323
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920172055.9U Active CN209557063U (en) | 2019-01-31 | 2019-01-31 | Crankcase ventilation mechanism and engine and automobile |
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| Country | Link |
|---|---|
| CN (1) | CN209557063U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112089563A (en) * | 2020-09-07 | 2020-12-18 | 济宁市荣复军人医院(济宁市精神卫生福利院) | Take protector's psychiatric department nursing shallow |
-
2019
- 2019-01-31 CN CN201920172055.9U patent/CN209557063U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112089563A (en) * | 2020-09-07 | 2020-12-18 | 济宁市荣复军人医院(济宁市精神卫生福利院) | Take protector's psychiatric department nursing shallow |
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