CN109057915A - A kind of tree-shaped plate gas drive formula oil-gas separating device of engine - Google Patents
A kind of tree-shaped plate gas drive formula oil-gas separating device of engine Download PDFInfo
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- CN109057915A CN109057915A CN201811074073.XA CN201811074073A CN109057915A CN 109057915 A CN109057915 A CN 109057915A CN 201811074073 A CN201811074073 A CN 201811074073A CN 109057915 A CN109057915 A CN 109057915A
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- oil
- gas
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- tree
- baffle
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Classifications
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- 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
- F01M2013/0438—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a filter
Abstract
The present invention provides a kind of tree-shaped plate gas drive formula oil-gas separating device of engine.The tree-shaped plate gas drive formula oil-gas separating device of engine includes the pre-separate device and primary separating device that mounting groove in valve mechanism cover is arranged in, the mounting groove offers air inlet, the primary separating device is made of at least two tree-shaped baffles, the tree-shaped baffle is arranged in parallel in mounting groove, the valve mechanism cover is additionally provided with gas vent, and the gas vent is equipped with the escape pipe of connection gas drive formula gs-oil separator；The tree-shaped plate gas drive formula oil-gas separating device of engine can carry out secondary acceleration to gas mixture, separate larger oil droplet and small oil droplet respectively and flowed out by oil back chamber, separative efficiency is high；In the absorption of small oil droplet, filter core, there is no need to regularly replace filter core, is able to solve periodic replacement maintenance issues since the impact force of secondary acceleration does not have residue blocking.
Description
Technical field
The invention belongs to Oil-gas Separation technical fields, and in particular to a kind of tree-shaped plate gas drive formula engine oil gas separation dress
It sets.
Background technique
The high-temperature fuel gas that engine generates at work can be scurried into crankcase by the gap between piston group and cylinder,
Cause gas blowby.The ingredient of gas blowby is unburned fuel vapor, vapor and exhaust gas etc..Water vapor condensation dilutes machine in machine oil
Oil reduces the service performance of machine oil；Sulfur dioxide in exhaust gas encounters air oxidation and generates sulfuric acid, and the oxidation of machine oil is accelerated to become
Matter will lead to the corrosion and accelerated wear test of engine part；Gas blowby can also make the hypertonia of crankcase and destroy crankcase
Sealing, is lost engine oil leakage；Accelerate the aging of machine oil, reduces reliability.Therefore, it is necessary to using crankcase ventilation system to altering
Gas is controlled.Gas blowby can carry a large amount of oil gas, machine oil is caused to be lost, deteriorate simultaneously when flowing through crankcase ventilation system
Discharge, it is therefore necessary to oil gas be separated, machine oil loss is reduced.By gs-oil separator being integrated in valve mechanism cover come to hair
The oil gas that motivation excludes is separated, and traditional valve mechanism cover can only carry out single separation, and effect can not reach expected.
Such as a kind of Chinese utility model patent " valve mechanism cover " of Publication No. CN205559013U, including valve mechanism cover sheet
Body, cylinder head cover body inside are formed with oil gas pre-separation chamber, and the oil gas pre-separation chamber is equipped with pre-separation air inlet and in advance
Gas outlet is separated, is successively arranged from the pre-separation air inlet to the pre-separation gas outlet along vertical in oil gas pre-separation room
The spaced multiple lateral partitions in direction and in the horizontal direction be in the spaced multiple longitudinal baffles of labyrinth type, lateral partitions
The mazy gas channel for being connected to pre-separation air inlet and pre-separation gas outlet is formed between longitudinal baffle, and in cylinder head
Cover lateral wall is integrated with gs-oil separator.By the above content it can be found that the core of valve mechanism cover Oil-gas Separation in the prior art
The heart is the mazy gas channel formed between lateral partitions and longitudinal baffle, but its single layer structure Oil-gas Separation ability
Difference, can not separate fine oil droplets, also cannot achieve passive type separation and active isolated combination, be unable to satisfy engine state six
The requirement of discharge.
Such as the Chinese invention patent " independent external hanging type multistage gs-oil separator assembly " of Publication No. CN102705040B, it is
A kind of gas drive formula active separator can carry out active separation to the gas mixture in crankcase, but only with active point
It is unable to satisfy six discharge standard of state from device, can not also be classified processing super large oil droplet, larger oil droplet and fine oil droplets.
It is interior such as the Chinese invention patent application " oil and gas separating system built in valve mechanism cover " of Publication No. CN108049937A
Set gs-oil separator, comprising: housing ontology and the labyrinth cavity and bottom cover that the housing ontology side is set, the labyrinth chamber
One end of body is provided with the outgoing gas connection tube extended to outside housing, and top offers respirator socket；It is equipped in the labyrinth chamber body
Coarse filtration orifice plate, winding type rectifier structure, refined filtration orifice plate and every position plate.By the above content it can be found that cylinder in the prior art
Housing oil-gas pre-separation device is equipped with coarse filtration orifice plate and winding type rectifier structure, can be used for Oil-gas Separation, but super large oil droplet
The oil droplet of 10um (diameter be greater than) is easy to mix with larger oil droplet (referring to that droplet diameter is 2~10um), and do not have oil droplet absorption with
Diversion effect, the droplet diameter that will lead into refined filtration orifice plate is still very big, (refers to that droplet diameter is 0.1 for handling small oil droplet
~2um) there is very big influence；Winding type rectifier structure disclosed in the prior art can not solve gas mixture and touch at a high speed
Oil droplet second-time breakage (collision is splashed) problem generated when hitting, oil droplet can not adsorb back after flowing through collision winding type rectifier structure
It receives, can still be exported as gas mixture flows to, separative efficiency is low.
Summary of the invention
It is an object of the invention to overcome the defect of the above-mentioned prior art, a kind of new partition gas drive formula engine oil is provided
Air separation can be classified separation super large oil droplet, larger oil droplet and fine oil droplets, and separative efficiency is high, moreover it is possible to solve oil droplet
The problem of adsorption recovery and collision are splashed also does not need periodic maintenance replacement filter core, can be achieved at the same time passive type and active
Formula separation, is able to satisfy six engine calls of state.
The purpose of the present invention is what is be achieved through the following technical solutions:
The present invention provides a kind of tree-shaped plate gas drive formula oil-gas separating device of engine, comprising: is arranged in valve mechanism cover
The pre-separate device and primary separating device of mounting groove, and the gas drive formula gs-oil separator outside valve mechanism cover is set；It is described
Mounting groove offers the air inlet for receiving gas mixture in crankcase, and the primary separating device is by least two tree-shaped gears
Board group is at tree-shaped baffle surface has " branch " raised node, is conducive to enhance the collision to super large oil droplet in gas mixture
Separation, the bending channel being made of the tree-shaped baffle have preferable effect, the tree-shaped baffle for separation super large oil droplet
It is arranged in parallel in mounting groove；The valve mechanism cover is additionally provided with the gas vent for the exhaust gas discharge after separating, the exhaust
Hole is equipped with the escape pipe of connection gas drive formula gs-oil separator, the valve mechanism cover, pre-separate device and primary separating device combination
Form gas channel；The pre-separate device includes the first filter opening plate being arranged in parallel on bottom plate and the first filter baffle, bottom plate
On the crude separation device that forms of the first oil back chamber and its first lower oil return pipe, the crude separation device is located at primary separating device
Rear accelerates collision further separation larger oil droplet for carrying out to gas mixture；Second filter opening plate, filter core and the second filter gear
The thin separator of the second oil back chamber on plate, bottom plate and the second oil return pipe composition under it, the thin separator is located at thick
Separator rear further separates small oil droplet for again speed up colliding to gas mixture, the gas vent setting
At thin separator rear, exhaust gas is delivered to gas drive formula gs-oil separator by escape pipe by the gas vent.
The coarse filtration hole for being accelerated to gas mixture is provided on the first filter opening plate in the crude separation device,
In one embodiment, it is provided on the first filter baffle and filters rib for the one of water conservancy diversion oil droplet to the first oil back chamber, again
In one embodiment, the needle-shaped lug boss for increasing oil gas making contact area is provided on the first filter baffle, it is described
Needle-shaped lug boss can effectively prevent oil droplet since high velocity impact causes second-time breakage, improve oil-gas separation efficiency；Described
The lower section of the first filter baffle is arranged in one oil back chamber, and the first filter baffle is the hatch frame of non-close so as to gas mixture
Flowing, the bottom of the first oil back chamber is arranged in first oil return pipe.
In one embodiment, the second filter opening plate in the thin separator, filter core and the second filter baffle are snugly into each other
Ground is arranged on bottom plate；The fine filtering hole for carrying out secondary acceleration to gas mixture, institute are provided on the second filter opening plate
It states and is provided on the second filter baffle for colliding the small oil droplet of separation and the small oil droplet of water conservancy diversion to the two of the second oil back chamber filters ribs, it is described
The setting of second oil back chamber filters baffle rear second, and the second filter baffle is the hatch frame of non-close, second oil return
The bottom of the second oil back chamber is arranged in pipe.
In one embodiment, the pre-separate device further includes spill baffle, the spill baffle be hatch frame just
In forming gas channel, the spill baffle is additionally provided with for colliding separation oil droplet simultaneously three filter muscle of the water conservancy diversion to the second oil back chamber
Item；Gas mixture hits spill baffle, and oil droplet flows into the second oil back chamber, remaining gas mixture by three filter ribs
The hatch frame (gas channel) for flowing through spill baffle enters gas vent.
In one embodiment, being additionally provided in first oil return pipe and the second oil return pipe prevents exhaust gas recoil from entering pre- point
Umbrella shape oil return valve from device, can be effectively prevented influences oil gas pre-separation efficiency because of exhaust gas recoil.
In one embodiment, the material of the filter core is any in non-woven fabrics, felt, glass fibre and synthetic fibers
It is a kind of.
In one embodiment, the spacing of the first filter opening plate and the first filter baffle is 2~5mm, according to the air inlet of air inlet
Size is measured, the aperture in the coarse filtration hole can be set to 3~6mm, and the number in the coarse filtration hole is set as 10~45, makes to pass through
The flow control of first filter opening plate flows through the first filter opening leaf fat gas mixture and filters in the flow rates with first in 5~8m/s
The effect that baffle hits separation larger oil droplet is good.
In one embodiment, according to the air inflow size of air inlet, the aperture in the fine filtering hole can be set to 2~
The number of 3mm, the fine filtering hole are set as 8~54, make to flow through by the flow control of the second filter opening plate in 15~30m/s
The effect that second filter opening leaf fat gas mixture separates small oil droplet with the second filter baffle shock in the flow rates is good.
Compared with the prior art, the advantages of the present invention are as follows:
The engine oil gas pre-separate device can accelerate twice gas mixture, separate larger oil droplet and small respectively
Oil droplet is simultaneously flowed out by oil back chamber, and separative efficiency is high；In the absorption of small oil droplet, filter core will not due to the impact force of secondary acceleration
There is residue blocking, there is no need to regularly replace filter core, is able to solve periodic replacement maintenance issues；In addition, the engine oil gas
Pre-separate device can also preset specification (including pore size and the filter opening in coarse filtration hole and fine filtering hole according to the size of air inflow
Number), the flow velocity after primary acceleration and secondary acceleration is ensured with this, promotes the efficiency for hitting separation oil droplet.
Detailed description of the invention
The embodiment of the present invention is described further referring to the drawings, in which:
Fig. 1 is the valve mechanism cover schematic diagram of internal structure according to one embodiment of the invention；
Fig. 2 is the three dimensional structure diagram according to the valve mechanism cover mounting groove of one embodiment of the invention；
Fig. 3 is the schematic cross-section according to the valve mechanism cover mounting groove of one embodiment of the invention；
Fig. 4 is the three dimensional structure diagram according to the pre-separate device of one embodiment of the invention；
Fig. 5 is the three dimensional structure diagram according to the first filter opening plate of one embodiment of the invention and the first filter baffle；
Fig. 6 is the three dimensional structure diagram that needle-shaped lug boss is equipped with according to the first of one embodiment of the invention the filter baffle；
Fig. 7 is to be illustrated according to the three-dimensional structure of the second filter opening plate of one embodiment of the invention, filter core and the second filter baffle
Figure；
Fig. 8 is the three dimensional structure diagram according to the spill baffle of one embodiment of the invention；
Fig. 9 is the first separated structure schematic diagram according to two tree-shaped plates of one embodiment of the invention；
Figure 10 is the first separated structure schematic diagram according to four tree-shaped plates of one embodiment of the invention；
Figure 11 is the structural schematic diagram according to the valve mechanism cover escape pipe of one embodiment of the invention；
Figure 12 is the structural schematic diagram according to the gas drive formula gs-oil separator of one embodiment of the invention；
In figure, 100 be cylinder head casing, and 101 be mounting groove, and 102 be gas vent, and 103 be escape pipe, and 200 fill for pre-separation
It sets, 201 be bottom plate, and 204 be spill baffle, and 205 be the first filter opening plate, and 206 filter baffle for first, and 207 be the first oil back chamber,
208 first oil return pipes, 209 be the second filter opening plate, and 210 be filter core, and 211 be the second filter baffle, and 212 be the second oil back chamber, and 213 are
Second oil return pipe, 215 be coarse filtration hole, and 216 be a filter rib, and 217 be fine filtering hole, and 218 be two filter ribs, and 219 be three filter ribs,
220 be needle-shaped lug boss, and 300 be primary separating device, and 301 be air inlet, and 302 be the first tree-shaped baffle, and 303 be the second tree-shaped gear
Plate, 304 be the tree-shaped baffle of third, and 305 be the 4th tree-shaped baffle, and 400 be gas drive formula gs-oil separator, and 401 be exhaust gas entrance,
402 be compressed gas entrance, and 403 be mixed gas outlet, and 404 be oil return opening.
Specific embodiment
In order to make the purpose of the present invention, technical solution and advantage are more clearly understood, and are passed through below in conjunction with attached drawing specific real
Applying example, the present invention is described in more detail.It should be appreciated that described herein, specific examples are only used to explain the present invention, and
It is not used in the restriction present invention.
A kind of tree-shaped plate gas drive formula oil-gas separating device of engine, the tree-shaped plate gas are provided in an embodiment of the present invention
Drive formula oil-gas separating device of engine includes the pre-separate device and primary separating device that mounting groove in valve mechanism cover is arranged in, and
Gas drive formula gs-oil separator outside valve mechanism cover is set；Primary separating device can be in gas mixture charging stage separation unit
Enter pre-separate device after dividing oil droplet, gas mixture to flow through primary separating device, is accelerated to touch twice in pre-separate device
Separation is hit, and oil droplet is discharged by oil return pipe；Gas mixture is delivered to after pre-separate device is handled by escape pipe
Gas drive formula gs-oil separator, implements further Oil-gas Separation.Fig. 1 is according to the valve mechanism cover of one embodiment of the invention for mentioning
It is set for the installation fixing position of pre-separate device and primary separating device, as shown in Figure 1, Figure 2 and Figure 3, which is equipped with peace
The mounting groove 101 of pre-separate device 200 and primary separating device 300 is filled, the mounting groove 101 is also provided with for receiving engine
The air inlet 301 of gas mixture in crankcase, the primary separating device 300 are set to 301 rear of air inlet and are used for oil gas
Mixture carries out initial gross separation, and diameter is greater than the oil droplet of 10um, 100 row of being additionally provided with of valve mechanism cover in separation oil and gas mixture
Stomata 102；As shown in figure 4, the pre-separate device 200 includes 205 He of the first filter opening plate being arranged in parallel on bottom plate 201
The crude separation dress of first filter baffle 206, the first oil back chamber 207 on bottom plate 201 and the first oil return pipe 208 composition of its underpart
It sets, the crude separation device is located at 300 rear of primary separating device, (refers to that oil droplet is straight for handling the larger oil droplet in gas mixture
Diameter is 2~10um)；212 and of the second oil back chamber on second filter opening plate 209, filter core 210 and the second filter baffle 211, bottom plate 201
The thin separator of second oil return pipe 213 composition of its underpart；The thin separator is located at crude separation device rear, for locating
Small oil droplet (referring to that droplet diameter is 0.1~2um) in reason gas mixture；Gas vent 102 in the valve mechanism cover 100 is arranged
It is used to be discharged the exhaust gas after separating oil droplet at thin separator rear, is additionally provided on the gas vent 102 for oil gas to be discharged
The escape pipe 103 (as shown in figure 11) of mixture, the escape pipe 103 connect gas vent 102 and are pierced by valve mechanism cover 100, institute
Gas mixture after pre-separation can be imported the exhaust gas entrance of gas drive formula gs-oil separator 400 by the setting for stating escape pipe 103
401, the gas drive formula gs-oil separator 400 is using existing conventional equipment (such as cyclone separator), as shown in figure 12, institute
The gas drive formula gs-oil separator 400 stated is additionally provided with compressed gas entrance 402, mixed gas outlet 403 and oil return opening 404, oil gas
Mixture carries out high velocity impact after entering gas drive formula gs-oil separator 400 via exhaust gas entrance 401, and oil droplet is separated further out
Come；The compressed gas entrance 402 pushes jet pump to generate next gram of negative pressure for the compressed gas after sucking engine booster
Resistance required for clothes collision separates, the oil droplet after separation flow back into engine sump tank by oil return opening 404, after separating oil droplet
Exhaust gas and enter the gas of compressed gas entrance 402 and be introduced into engine air inlet tube by mixed gas outlet 403 and enter combustion
Room burning is burnt, is finally reached and the passive type of crankcase oils gas mixture is separated with active, separating effect is made to reach state six
Engine emission standard；In one embodiment, as shown in figure 9, the primary separating device 300 by the first tree-shaped baffle 302 with
Second tree-shaped baffle 303 forms, and the first tree-shaped baffle 302 and the second tree-shaped baffle 303 are arranged in parallel in mounting groove 101
Interior, to form curved labyrinth type oil-gas channel, separation super large oil droplet (referring to that diameter is greater than the oil droplet of 10um) effect is good；Again
In one embodiment, as shown in Figure 10, the primary separating device 300 is by the first tree-shaped baffle 302, the second tree-shaped baffle 303,
Three tree-shaped baffles 304 and the 4th tree-shaped baffle 305 form, the first tree-shaped baffle 302, the second tree-shaped baffle 303, third tree
Shape baffle 304 and the 4th tree-shaped baffle 305 are arranged in parallel in mounting groove 101, to form curved labyrinth type oil-gas channel,
Separation super large oil droplet (referring to that diameter is greater than the oil droplet of 10um) effect is good.
As shown in figure 5, the first filter opening plate 205 and the first filter baffle 206 in the crude separation device are arranged in parallel in bottom
(Fig. 4 is referred to) on plate 201, and the coarse filtration for once being accelerated to gas mixture is provided on the first filter opening plate 205
Hole 215.In one embodiment, it is provided on the first filter baffle 206 and (refers to that droplet diameter is for colliding separation larger oil droplet
2~10um) simultaneously water conservancy diversion larger oil droplet is to a filter rib 216 of the first oil back chamber 207, and the setting of the first oil back chamber 207 is first
Filter the lower section of baffle 206, the first filter baffle 206 is the hatch frame (convenient for forming gas channel) of non-close, described the
The bottom of the first oil back chamber 207 is arranged in one oil return pipe 208；Gas mixture flows through after the acceleration of the first filter opening plate 205 with
One filter baffle 206 is hit, and larger oil droplet flows into the first oil back chamber 207, remaining air-fuel mixture logistics by a filter rib 216
Opening portion (gas channel) outflow through the first filter baffle 206；In yet another embodiment, as shown in fig. 6, first filter
The needle-shaped lug boss 220 for increasing oil gas making contact area is provided on baffle 206, the needle-shaped lug boss 220 can
Effectively absorption high velocity impact first filters the larger oil droplet of baffle 206 and by oil droplet water conservancy diversion to the first oil back chamber 207, prevent larger oil droplet by
Second-time breakage (larger oil droplet collision is easy to produce splashing) is caused in high velocity impact, improves oil-gas separation efficiency, larger oil droplet passes through
Needle-shaped lug boss 220 flows into the first oil back chamber 207, remaining gas mixture flows through the opening portion (oil of the first filter baffle 206
Gas channel) outflow.
In one embodiment, as the air inflow of air inlet 301 be 60L/min, the aperture in the coarse filtration hole 215 is set as
3mm, the number in the coarse filtration hole 215 are set as 27, the spacing setting of the first filter opening plate 205 and the first filter baffle 206
For 2mm, make through the flow control of the first filter opening plate 205 in about 5m/s, at this point, flowing through 205 gas mixture of the first filter opening plate
The effect for separating larger oil droplet with the first filter shock of baffle 206 under the setting of the flow velocity and spacing is good；In yet another embodiment,
If the air inflow of air inlet 301 is 100L/min, the aperture in the coarse filtration hole 215 is set as 6mm, in the coarse filtration hole 215
Number is set as 10, and the spacing of the first filter opening plate 205 and the first filter baffle 206 is set as 3mm, makes through the first filter opening plate
205 flow control is in about 6m/s, at this point, flowing through 205 gas mixture of the first filter opening plate under the setting of the flow velocity and spacing
The effect for separating larger oil droplet with the first filter shock of baffle 206 is good；In yet another embodiment, as the air inflow of air inlet 301 is
150L/min, the aperture in the coarse filtration hole 215 are set as 5mm, and the number in the coarse filtration hole 215 is set as 25, and described first
The spacing of filter opening plate 205 and the first filter baffle 206 is set as 5mm, makes through the flow control of the first filter opening plate 205 in about 5m/
S divides at this point, flowing through 205 gas mixture of the first filter opening plate and hitting under the setting of the flow velocity and spacing with the first filter baffle 206
Effect from larger oil droplet is good；In yet another embodiment, if the air inflow of air inlet 301 is 270L/min, the coarse filtration hole 215
Aperture be set as 6mm, the number in the coarse filtration hole 215 is set as 20, the first filter opening plate 205 and the first filter baffle
206 spacing is set as 4mm, makes through the flow control of the first filter opening plate 205 in about 8m/s, at this point, flowing through the first filter opening plate
The effect that 205 gas mixtures separate larger oil droplet with the first filter shock of baffle 206 under the setting of the flow velocity and spacing is good；Again
In one embodiment, if the air inflow of air inlet 301 is 270L/min, the aperture in the coarse filtration hole 215 is set as 3mm, described
The number in coarse filtration hole 215 is set as 45, and the spacing of the first filter opening plate 205 and the first filter baffle 206 is set as 4mm, makes
By the flow control of the first filter opening plate 205 in about 8m/s, at this point, flowing through 205 gas mixture of the first filter opening plate in the flow velocity
And under the setting of spacing with first filter baffle 206 hit separate larger oil droplet effect it is good.
In one embodiment, the second filter opening plate 209, filter core 210 as shown in Fig. 4, Fig. 7, in the thin separator
With second filter baffle 211 it is snugly into each other be arranged on bottom plate 201；It is provided on the second filter opening plate 209 for oil gas
Mixture carries out the fine filtering hole 217 of secondary acceleration, effect when gas mixture flows through the second filter opening plate 209, in fine filtering hole 217
Lower gas mixture has carried out secondary acceleration, and gas mixture can carry out high speed impact, the filter core 210 to the filter core 210
Lower part is hatch frame convenient for forming gas channel, and the filter core 210 is for adsorbing the small oil after the secondary acceleration of gas mixture
Drop (refers to that droplet diameter is 0.1~2um), and wherein the material of filter core 210 can be fine for non-woven fabrics, felt, glass fibre or synthesis
Dimension, filter core 210 using these materials absorption oil droplet effect it is good, and filter core 210 secondary acceleration high speed impact effect under,
Surface will not assemble residue, therefore can exempt periodic replacement maintenance and (directly adopt filter pulp in the prior art and carry out oil gas point
From though efficiency is high, maintenance filter pulp need to be regularly replaced, and maintenance cost is higher)；It is arranged on the second filter baffle 211
Have for colliding the small oil droplet of separation and two filter ribs 218 of the small oil droplet of water conservancy diversion to the second oil back chamber 212, the second filter baffle
211 lower part is the hatch frame (forming gas channel) of non-close, and convenient for the flowing of gas mixture, gas mixture is flowed through
After filter core 210 under the effect of impact of the second filter baffle 211, small oil droplet flows into the second oil back chamber by two filter ribs 218, remaining
Gas mixture enters next stage separator by the hatch frame (gas channel) of the second filter baffle 211；Implement at one
In example, if the air inflow of air inlet 301 is 60L/min, the aperture in the fine filtering hole 217 is set as 2mm, the fine filtering hole 217
Number be set as 18, make through the flow control of the second filter opening plate 209 in about 18m/s, at this point, flowing through the second filter opening plate
209 gas mixtures impact filter core 210 under the flow velocity, filter core 210 adsorb after small oil droplet gas mixture under the flow velocity after
It is continuous to hit the second filter baffle 211, preferable small oil droplet separating effect can be obtained；In yet another embodiment, such as air inlet 301
Air inflow be 60L/min, the aperture in the fine filtering hole 217 is set as 3mm, and the number in the fine filtering hole 217 is set as 8,
Make through the flow control of the second filter opening plate 209 in about 18m/s, at this point, flowing through 209 gas mixture of the second filter opening plate in the stream
Speed is lower to impact filter core 210, and gas mixture continues to hit the second filter baffle 211 under the flow velocity after filter core 210 adsorbs small oil droplet,
Preferable small oil droplet separating effect can be obtained；In yet another embodiment, as the air inflow of air inlet 301 be 120L/min,
The aperture in the fine filtering hole 217 is set as 2.5mm, and the number in the fine filtering hole 217 is set as 20, makes through the second filter opening plate
209 flow control is in about 20m/s, at this point, flow through 209 gas mixture of the second filter opening plate impacts filter core 210 under the flow velocity,
Gas mixture continues to hit the second filter baffle 211 under the flow velocity after filter core 210 adsorbs small oil droplet, can obtain preferable small
Oil droplet separating effect；In yet another embodiment, if the air inflow of air inlet 301 is 180L/min, the hole in the fine filtering hole 217
Diameter is set as 2.5mm, and the number in the fine filtering hole 217 is set as 23, makes through the flow control of the second filter opening plate 209 about
27m/s, at this point, flow through 209 gas mixture of the second filter opening plate impacts filter core 210 under the flow velocity, filter core 210 adsorbs small oil droplet
Gas mixture continues to hit the second filter baffle 211 under the flow velocity afterwards, can obtain preferable small oil droplet separating effect；Again
In one embodiment, if the air inflow of air inlet 301 is 260L/min, the aperture in the fine filtering hole 217 is set as 3mm, described
The number in fine filtering hole 217 is set as 24, makes through the flow control of the second filter opening plate 209 in about 27m/s, at this point, flowing through
Two filter opening plates, 209 gas mixture impacts filter core 210 under the flow velocity, and gas mixture is at this after filter core 210 adsorbs small oil droplet
Continue to hit the second filter baffle 211 under flow velocity, preferable small oil droplet separating effect can be obtained；In yet another embodiment, such as
The air inflow of air inlet 301 is 270L/min, and the aperture in the fine filtering hole 217 is set as 2mm, the number in the fine filtering hole 217
54 are set as, is made through the flow control of the second filter opening plate 209 in about 30m/s, at this point, flowing through 209 oil gas of the second filter opening plate
Mixture impacts filter core 210 under the flow velocity, and gas mixture continues shock under the flow velocity after filter core 210 adsorbs small oil droplet
Two filter baffles 211, can obtain preferable small oil droplet separating effect.
In one embodiment, the pre-separate device 200 further includes spill baffle 204, and the spill baffle 204 is
Hatch frame is convenient for forming gas channel, and as shown in Fig. 4, Fig. 8, the spill baffle 204 is additionally provided with for colliding separation oil
Drip and water conservancy diversion to the second oil back chamber 212 three filter ribs 219；Gas mixture hits spill baffle 204, and oil droplet passes through
Three filter ribs 219 flow into the second oil back chambers 212, remaining gas mixture flows through the hatch frame of spill baffle 204, and (oil gas is logical
Road) enter gas vent 102,204 opening upwards of spill baffle are fixed on bottom plate 201, so as to the second separator 203
The gas mixture of outflow directly hits 204 lower part of spill baffle, and oil droplet passes through three filter ribs 219 under the effect of gravity and flows into the
Two oil back chambers 212.
In one embodiment, it with continued reference to Fig. 4, is additionally provided in first oil return pipe 208 and the second oil return pipe 213 anti-
Only exhaust gas recoil enters the umbrella shape oil return valve (not shown) of pre-separate device 200, can be effectively prevented due to exhaust gas recoil
Influence oil gas pre-separation efficiency.
From above-described embodiment as can be seen that compared with prior art, tree-shaped plate gas drive formula according to an embodiment of the present invention is sent out
Motivation oil-gas pre-separation device can accelerate twice gas mixture, separate larger oil droplet and small oil droplet respectively and pass through back
Oil pocket outflow, separative efficiency are high；The specification in coarse filtration hole and fine filtering hole can also be preset according to the size of air inflow, and (including aperture is big
Small and filter opening number), the flow velocity after primary acceleration and secondary acceleration is ensured with this, promotes the efficiency for hitting separation oil droplet, finally
It is able to satisfy the standard of the discharge of state six.
What the reference in this specification for " some embodiments ", " one embodiment " or " embodiment " etc. referred to is knot
Special characteristic described in the embodiment, structure or property is closed to be included at least one embodiment.Therefore, phrase is " each
In a embodiment ", " in some embodiments ", " in one embodiment " or " in embodiment " etc. throughout the specification
The appearance of each place not necessarily refers to identical embodiment.In addition, special characteristic, structure or property can be at one or more
It is combined in any way as suitable in a embodiment.Therefore, in conjunction with shown in one embodiment or description special characteristic, structure
Or property wholly or partly can be combined unlimitedly with the feature of one or more other embodiments, structure or property,
As long as the combination is not non-logicality or cannot work.In addition, each element in illustrations is just to illustrating
It is bright, it is not necessarily drawn to scale.
It is thus described several aspects of at least one embodiment of this invention, it will be understood that those skilled in the art
For be easy to carry out various changes, modification and improvement.This changes, modifications and improvement are intended in the spirit and scope of the present invention
It is interior.
Claims (8)
1. a kind of tree-shaped plate gas drive formula oil-gas separating device of engine, comprising: the pre-separation of mounting groove in valve mechanism cover is arranged in
Device and primary separating device, and the gas drive formula gs-oil separator outside valve mechanism cover is set；The mounting groove offer into
Stomata, the valve mechanism cover are additionally provided with gas vent, and the gas vent is equipped with the escape pipe of connection gas drive formula gs-oil separator, institute
Valve mechanism cover, pre-separate device and primary separating device is stated to combine to form gas channel, it is characterised in that:
The primary separating device is made of at least two tree-shaped baffles, and the tree-shaped baffle arrangement is in mounting groove, and described pre- point
It include: under the first oil back chamber and its on the first filter opening plate being arranged in parallel on bottom plate and the first filter baffle, bottom plate from device
The first oil return pipe composition crude separation device, the crude separation device is located at primary separating device rear；Second filter opening plate, filter core
The thin separator formed with the second filter baffle, the second oil back chamber on bottom plate and the second oil return pipe it under, it is described segment from
Device is located at crude separation device rear, and the gas vent is arranged at thin separator rear.
2. tree-shaped plate gas drive formula oil-gas separating device of engine as described in claim 1, it is characterised in that: the crude separation dress
It is provided with coarse filtration hole on the first filter opening plate set, is provided with a filter rib or needle-shaped lug boss, institute on the first filter baffle
State the first oil back chamber be arranged in first filter baffle lower section, it is described first filter baffle be non-close hatch frame, described first
The bottom of the first oil back chamber is arranged in oil return pipe.
3. tree-shaped plate gas drive formula oil-gas separating device of engine as described in claim 1, it is characterised in that: described to segment from dress
The second filter opening plate, filter core and the second filter baffle set are arranged on bottom plate snugly into each otherly；It is arranged on the second filter opening plate
There is fine filtering hole, two filter ribs are provided on the second filter baffle, the second oil back chamber setting filters baffle rear, institute second
The hatch frame that the second filter baffle is non-close is stated, the bottom of the second oil back chamber is arranged in second oil return pipe.
4. tree-shaped plate gas drive formula oil-gas separating device of engine as described in claim 1, it is characterised in that: the pre-separation dress
Setting further includes spill baffle, and the spill baffle is additionally provided with three filter ribs.
5. tree-shaped plate gas drive formula oil-gas separating device of engine as described in claim 1, it is characterised in that: the material of the filter core
Matter is any one in non-woven fabrics, felt, glass fibre or synthetic fibers.
6. tree-shaped plate gas drive formula oil-gas separating device of engine as described in claim 1, it is characterised in that: at described first time
Oil pipe and the second oil return pipe are additionally provided with the umbrella shape oil return valve for preventing exhaust gas recoil from entering pre-separate device.
7. tree-shaped plate gas drive formula oil-gas separating device of engine as claimed in claim 2, it is characterised in that: first filter opening
The spacing of plate and the first filter baffle is 2~5mm, and the aperture in the coarse filtration hole is 3~6mm, the number in the coarse filtration hole is 10~
45.
8. tree-shaped plate gas drive formula oil-gas separating device of engine as claimed in claim 3, it is characterised in that: the fine filtering hole
Aperture is 2~3mm, and the number in the fine filtering hole is 8~54.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811074073.XA CN109057915A (en) | 2018-09-14 | 2018-09-14 | A kind of tree-shaped plate gas drive formula oil-gas separating device of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811074073.XA CN109057915A (en) | 2018-09-14 | 2018-09-14 | A kind of tree-shaped plate gas drive formula oil-gas separating device of engine |
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| Publication Number | Publication Date |
|---|---|
| CN109057915A true CN109057915A (en) | 2018-12-21 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811074073.XA Pending CN109057915A (en) | 2018-09-14 | 2018-09-14 | A kind of tree-shaped plate gas drive formula oil-gas separating device of engine |
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| CN105114202A (en) * | 2015-08-12 | 2015-12-02 | 安徽江淮汽车股份有限公司 | Improved structure of engine cylinder cover shield |
| EP3009620A1 (en) * | 2014-10-15 | 2016-04-20 | OFFICINE METALLURGICHE G. CORNAGLIA S.p.A. | Separation unit for crankcase emissions of an ic engine |
| CN106703936A (en) * | 2015-11-12 | 2017-05-24 | 北汽福田汽车股份有限公司 | Engine oil and gas separator and engine assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1286025A1 (en) * | 2001-06-28 | 2003-02-26 | Yamaha Hatsudoki Kabushiki Kaisha | Blow-by gas oil separator for an internal combustion engine |
| CN202914159U (en) * | 2012-11-12 | 2013-05-01 | 李斯特技术中心（上海）有限公司 | Oil-gas separator of engine |
| CN203009005U (en) * | 2013-01-06 | 2013-06-19 | 美嘉帕拉斯特汽车零部件（上海）有限公司 | One-way valve applied to oil-gas separating functional oil return port |
| CN203394609U (en) * | 2013-07-03 | 2014-01-15 | 广西玉柴机器股份有限公司 | Crankcase ventilation device |
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| EP3009620A1 (en) * | 2014-10-15 | 2016-04-20 | OFFICINE METALLURGICHE G. CORNAGLIA S.p.A. | Separation unit for crankcase emissions of an ic engine |
| CN105114202A (en) * | 2015-08-12 | 2015-12-02 | 安徽江淮汽车股份有限公司 | Improved structure of engine cylinder cover shield |
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Application publication date: 20181221 |