CN109209558A - A kind of filter net type voltage adaptive controlling oil-gas separating device of engine - Google Patents
A kind of filter net type voltage adaptive controlling oil-gas separating device of engine Download PDFInfo
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- CN109209558A CN109209558A CN201811074016.1A CN201811074016A CN109209558A CN 109209558 A CN109209558 A CN 109209558A CN 201811074016 A CN201811074016 A CN 201811074016A CN 109209558 A CN109209558 A CN 109209558A
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- filter
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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
-
- 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
- F01M2013/0488—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with oil trap in the return conduit to the crankcase
- F01M2013/0494—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with oil trap in the return conduit to the crankcase using check valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The present invention provides a kind of filter net type voltage adaptive controlling oil-gas separating device of engine, including the pre-separate device being arranged in valve mechanism cover, the pre-separate device offers air inlet and gas vent, the valve mechanism cover and pre-separate device combine to form gas channel, the pre-separate device includes: the sieve plate being arranged on bottom plate, it is arranged in parallel in crude separation device and thin separator on bottom plate, the thin separator is located at crude separation device rear, and the gas vent is arranged at thin separator rear；The filter net type voltage adaptive controlling 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 addition, the filter net type voltage adaptive controlling oil-gas separating device of engine has achieved the effect that automatic adjusument pre-separate device internal pressure by the way that check valve is arranged.
Description
Technical field
The invention belongs to Oil-gas Separation technical fields, and in particular to a kind of filter net type voltage adaptive controlling engine oil gas separation
Device.
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 valve mechanism cover oil gas pre-separation in the prior art
Core 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, and when having in separator pressure-difference fluctuation, not can guarantee the stability of flow velocity.
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；Additionally it is possible to according in separator
Portion's pressure, self adaptive control flow velocity promote separative efficiency, are 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 filter net type voltage adaptive controlling oil-gas separating device of engine, comprising: is arranged in cylinder head
Pre-separate device in cover, the pre-separate device are offered for receiving the air inlet of gas mixture in crankcase and being used for
By the gas vent of the exhaust gas discharge after separation, the valve mechanism cover and pre-separate device combine to form gas channel, and described pre- point
It include: the sieve plate being arranged on bottom plate from device, the air inlet is arranged in sieve plate, the gas mixture in crankcase
It is flowed into from the air inlet in sieve plate, due to the effect of sieve plate, when gas mixture air inlet, part larger oil droplet can collide strainer
Plate and flow back；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
The crude separation device of first oil return pipe composition, the crude separation device are located at sieve plate rear, for carrying out to gas mixture
Accelerate collision further separation larger oil droplet；It is arranged in parallel in the second filter opening plate on bottom plate, filter core and the second filter baffle, on bottom plate
The second oil back chamber and the subdivision that forms of its second lower oil return pipe and the check valve being arranged on the second filter opening plate from dress
It sets, the thin separator is located at crude separation device rear, further divides for again speed up colliding to gas mixture
From small oil droplet, at thin separator rear, the gas vent is used to that the exhaust gas after separation to be discharged for the gas vent setting；Due to list
Setting to valve, when air pressure inside is smaller, check valve is not turned on, and air pressure inside is alleviated in check valve conducting when air pressure inside is excessive
Separating effect is ensured, so that pre-separate device has the characteristic of voltage adaptive controlling.
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 first
The lower section of the first filter baffle is arranged in oil back chamber, and the first filter baffle is the hatch frame of non-close so as to gas mixture
The bottom of the first oil back chamber is arranged in flowing, 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 is provided on the second filter opening plate；Institute
The outlet end for stating check valve is fixed on the second filter opening plate, and since the second filter opening plate is equipped with fine filtering hole, check valve goes out
Mouth end meeting covering part fine filtering hole, when pre-separate device internal pressure is smaller, air pressure is not enough to impact opening check valve, oil gas
Mixture can be accelerated by the unlapped fine filtering hole of check valve, pre-separate device internal pressure greatly to a certain extent
When, air pressure is enough to impact opening check valve, and part gas mixture can flow through the fine filtering hole of check valve covering, reach adaptive
Adjust the effect of pre-separate device internal pressure；It is provided on the second filter baffle and separates small oil droplet and water conservancy diversion is small for colliding
Oil droplet filters rib to the two of the second oil back chamber, and the second oil back chamber setting filters baffle rear, the second filter baffle second
For the hatch frame of non-close, the bottom of the second oil back chamber is arranged in second oil return pipe.
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 10~54, 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 filter net type voltage adaptive controlling oil-gas separating device of engine is capable of stop portions larger oil droplet in the charging stage
Sucking, additionally it is possible to gas mixture is accelerated twice, larger oil droplet and small oil droplet is separated respectively and is flowed out by oil back chamber, point
From high-efficient；In the absorption of small oil droplet, for filter core since the impact force of secondary acceleration does not have residue blocking, there is no need to fixed
Phase replaces filter core, is able to solve periodic replacement maintenance issues；In addition, the filter net type voltage adaptive controlling oil-gas separating device of engine
Achieve the effect that automatic adjusument pre-separate device internal pressure by the way that check valve is arranged, realizes check valve and the second filter opening
It is hardened to close the new effects for generating voltage adaptive controlling；The filter net type voltage adaptive controlling oil-gas separating device of engine can also according into
The size of tolerance presets the specification (including pore size and filter opening number) in coarse filtration hole and fine filtering hole, with this ensure it is primary accelerate with
Flow velocity after secondary acceleration 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 pre-separate device of one embodiment of the invention；
Fig. 3 is the planar structure schematic diagram according to the pre-separate device of one embodiment of the invention；
Fig. 4 is the structural schematic diagram according to the sieve plate 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 tied according to the second filter opening plate of one embodiment of the invention, filter core, the second filter baffle and the three-dimensional of check valve
Structure schematic diagram；
Fig. 8 is the structural schematic diagram that fine filtering hole is covered according to the outlet end of the check valve of one embodiment of the invention；
Fig. 9 is according to the working principle diagram under the check valve on state of one embodiment of the invention.
In figure, 100 be valve mechanism cover, and 200 be pre-separate device, and 201 be bottom plate, and 202 be sieve plate, and 203 be the first filter
Orifice plate, 204 be the first filter baffle, and 205 be the second filter opening plate, and 206 be filter core, and 207 filter baffle for second, and 208 be the first oil return
Chamber, 209 first oil return pipes, 210 be the second oil back chamber, and 211 be the second oil return pipe, and 212 be air inlet, and 213 be gas vent, 214
It is coarse filtration hole for check valve, 215,216 be a filter rib, and 217 be fine filtering hole, and 218 be two filter ribs, and 220 be needle-shaped lug boss.
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 filter net type voltage adaptive controlling oil-gas separating device of engine is provided in an embodiment of the present invention, including is set
The pre-separate device in valve mechanism cover is set, the pre-separate device offers air inlet and gas vent, which can
Then to be accelerated collision to separate twice in pre-separate device in gas mixture charging stage separate section oil droplet, and
Oil droplet is discharged by oil return pipe.Fig. 1 is according to the valve mechanism cover of one embodiment of the invention for providing pre-separate device
Installation fixing position is set, and as shown in Figure 1, Figure 2 and Figure 3, which is equipped with pre-separate device 200, the pre-separation dress
Setting 200 includes:
The sieve plate 202 being arranged on bottom plate 201, the air inlet 212 are arranged in sieve plate 202 (such as Fig. 3, Fig. 4 institute
Show) for sucking gas mixture in engine crankcase, gas mixture is when entering pre-separate device 200, due to strainer
The effect of plate 202, part larger oil droplet (oil droplet that diameter is greater than 10um) can collide sieve plate 202 and flow back, remaining air-fuel mixture
Object can enter pre-separate device 200 by air inlet 212；
The first oil return being arranged in parallel on the first filter opening plate 203 and the first filter baffle 204, bottom plate 201 on bottom plate 201
The crude separation device of chamber 208 and the first oil return pipe 209 composition under it, the crude separation device are located at 202 rear of sieve plate, use
Larger oil droplet (referring to that droplet diameter is 2~10um) in processing gas mixture；The second filter opening being arranged in parallel on bottom plate 201
Plate 205, filter core 206 and the second filter baffle 207, the second oil back chamber 210 on bottom plate 201 and the second oil return pipe 211 under it, with
And the thin separator that the check valve 214 being arranged on the second filter opening plate 205 forms, the thin separator are located at crude separation dress
The side of postponing, for handling the small oil droplet in gas mixture (referring to that droplet diameter is 0.1~2um)；The setting of gas vent 213 exists
Thin separator rear is used to be discharged the exhaust gas after separating oil droplet, the air inlet 212, crude separation device, thin separator and
Gas vent 213 constitutes gas channel.
As shown in figure 5, the first filter opening plate 203 and the first filter baffle 204 in the crude separation device are arranged in parallel in bottom
(Fig. 3 is referred to) on plate 201；The coarse filtration for once being accelerated to gas mixture is provided on the first filter opening plate 203
Hole 215.In one embodiment, it is provided on the first filter baffle 204 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 208, and the setting of the first oil back chamber 208 is first
Filter the lower section of baffle 204, the first filter baffle 204 is the hatch frame (convenient for forming gas channel) of non-close, described the
The bottom of the first oil back chamber 208 is arranged in one oil return pipe 209；Gas mixture flows through after the acceleration of the first filter opening plate 203 with
One filter baffle 204 is hit, and larger oil droplet will flow into the first oil back chamber 208, remaining gas mixture by a filter rib 216
Flow through opening portion (gas channel) outflow of the first filter baffle 204；In yet another embodiment, as shown in fig. 6, described first
The needle-shaped lug boss 220 for increasing oil gas making contact area, needle-shaped 220 energy of lug boss are provided on filter baffle 204
Enough effectively absorption high velocity impacts first filter the larger oil droplet of baffle 204 and by oil droplet water conservancy diversion to the first oil back chamber 208, prevent larger oil droplet
Since high velocity impact causes second-time breakage (larger oil droplet collision is easy to produce splashing), oil-gas separation efficiency is improved, larger oil droplet is logical
It crosses needle-shaped lug boss 220 and flows into the first oil back chamber 208, remaining gas mixture flows through the opening portion of the first filter baffle 204
(gas channel) outflow.
In one embodiment, as the air inflow of air inlet 212 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 203 and the first filter baffle 204
For 2mm, make through the flow control of the first filter opening plate 203 in about 5m/s, at this point, flowing through 203 gas mixture of the first filter opening plate
The effect for separating larger oil droplet with the first filter shock of baffle 204 under the setting of the flow velocity and spacing is good；In yet another embodiment,
If the air inflow of air inlet 212 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 203 and the first filter baffle 204 is set as 3mm, makes through the first filter opening plate
203 flow control is in about 6m/s, at this point, flowing through 203 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 204 is good；In yet another embodiment, as the air inflow of air inlet 212 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 203 and the first filter baffle 204 is set as 5mm, makes through the flow control of the first filter opening plate 203 in about 5m/
S divides at this point, flowing through 203 gas mixture of the first filter opening plate and hitting under the setting of the flow velocity and spacing with the first filter baffle 204
Effect from larger oil droplet is good；In yet another embodiment, if the air inflow of air inlet 212 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 203 and the first filter baffle
204 spacing is set as 4mm, makes through the flow control of the first filter opening plate 203 in about 8m/s, at this point, flowing through the first filter opening plate
The effect that 203 gas mixtures separate larger oil droplet with the first filter shock of baffle 204 under the setting of the flow velocity and spacing is good；Again
In one embodiment, if the air inflow of air inlet 212 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 203 and the first filter baffle 204 is set as 4mm, makes
By the flow control of the first filter opening plate 203 in about 8m/s, at this point, flowing through 203 gas mixture of the first filter opening plate in the flow velocity
And under the setting of spacing with first filter baffle 204 hit separate larger oil droplet effect it is good.
In one embodiment, as shown in figure 3, the second filter opening plate 205, filter core 206 in the thin separator and
Two filter baffles 207 are arranged in snugly into each otherly on bottom plate 201, and the second filter opening plate 205 is equipped with check valve 214；Described
The fine filtering hole 217 for carrying out secondary acceleration to gas mixture is provided on two filter opening plates 205, gas mixture flows through second
When filter opening plate 205, gas mixture has carried out secondary acceleration under the action of fine filtering hole 217, and gas mixture can be to the filter
Core 206 carries out high speed impact, and 206 lower part of filter core is hatch frame convenient for forming gas channel, and the filter core 206 is for inhaling
Small oil droplet (referring to that droplet diameter is 0.1~2um) after the attached secondary acceleration of gas mixture, wherein the material of filter core 206 can be
Non-woven fabrics, felt, glass fibre or synthetic fibers, filter core 206 is good using these materials absorption oil droplet effect, and filter core 206
Under the high speed impact effect of secondary acceleration, surface will not assemble residue, therefore it is (existing to exempt periodic replacement maintenance
Directly adopt filter pulp in technology and carry out Oil-gas Separation, though efficiency is high, maintenance filter pulp need to be regularly replaced, maintenance cost compared with
It is high)；As shown in Figure 7, Figure 8, the outlet end of the check valve 214 is fixed on the second filter opening plate 205, due to the second filter opening plate
205 are equipped with fine filtering hole 217, therefore the outlet end meeting covering part fine filtering hole 217 of check valve 214, in pre-separate device 200
When portion's pressure is smaller, air pressure, which is not enough to impact, opens check valve 214, and gas mixture can be unlapped by check valve 214
Fine filtering hole 217 is accelerated, 200 internal pressure of pre-separate device greatly to a certain extent when (gas mixture flow velocity is greater than
When 18.2m/s), air pressure, which is enough to impact, opens check valve 214, and part gas mixture can flow through the fine filtering of the covering of check valve 214
Hole 217 has achieved the effect that 200 internal pressure of automatic adjusument pre-separate device；The principle of the check valve 214 is initial shape
Under state, top cover withstands arrival end by spring force, only after inlet port pressure is greater than to a certain degree, top cover compressed spring
Make check valve that (as shown in Figure 9) be connected, medium can enter the fine filtering hole covered from outlet end through arrival end and flow out at this time；Described
It is provided on two filter baffles 207 for colliding the small oil droplet of separation simultaneously two filter ribs of the small oil droplet of water conservancy diversion to the second oil back chamber 212
218, the lower part of the second filter baffle 207 is the hatch frame (forming gas channel) of non-close, convenient for gas mixture
Flowing, gas mixture flow through under the effect of impact for filtering baffle 207 second after filter core 206, and small oil droplet passes through two filter ribs 218
The second oil back chamber is flowed into, remaining gas mixture enters next stage by the hatch frame (gas channel) of the second filter baffle 207
Separator；In one embodiment, if the air inflow of air inlet 212 is 60L/min, the aperture setting in the fine filtering hole 217
For 2mm, the number in the fine filtering hole 217 is set as 22, and (wherein the outlet end of check valve 214 covers 4, not by check valve
214 outlet end is covered with 18, and gas mixture can pass through 18 uncovered fine filtering holes 217), the dress of pre-separation at this time
Setting 200 air pressure insides is insufficient to allow check valve 214 to be connected, and by the flow control of the second filter opening plate 205 in about 18m/s, flows through
Second filter opening plate, 205 gas mixture impacts filter core 206 under the flow velocity, and gas mixture exists after filter core 206 adsorbs small oil droplet
Continue to hit the second filter baffle 207 under the flow velocity, preferable small oil droplet separating effect can be obtained；When the air inlet of air inlet 212
When amount is promoted to 78L/min from 60L/min, 200 air pressure inside of pre-separate device increases, and check valve 214 is impacted in gas pressure
Lower conducting (gas mixture can pass through 22 fine filtering holes 217), at this time by the flow control of the second filter opening plate 205 about
18.8m/s flows through 205 gas mixture of the second filter opening plate and impacts filter core 206 under the flow velocity, after filter core 206 adsorbs small oil droplet
Gas mixture continues to hit the second filter baffle 207 under the flow velocity, can obtain preferable small oil droplet separating effect；Another
In a embodiment, if the air inflow of air inlet 212 is 60L/min, the aperture in the fine filtering hole 217 is set as 3mm, the fine filtering
The number in hole 217 is set as 10, and (wherein the outlet end of check valve 214 covers 2, is not covered by the outlet end of check valve 214
Have 8, gas mixture can pass through 8 uncovered fine filtering holes 217), make the flow control by the second filter opening plate 205
In about 17.7m/s, 200 air pressure inside of pre-separate device is insufficient to allow check valve 214 to be connected at this time, flows through the second filter opening plate 205
Gas mixture impacts filter core 206 under the flow velocity, and gas mixture continues to hit under the flow velocity after filter core 206 adsorbs small oil droplet
The second filter baffle 207 is hit, preferable small oil droplet separating effect can be obtained；When the air inflow of air inlet 212 is promoted from 60L/min
When to 80L/min, 200 air pressure inside of pre-separate device increases, and (air-fuel mixture is connected under gas pressure impact in check valve 214
Object can pass through 10 fine filtering holes 217), make to flow through the second filter in about 18.9m/s by the flow control of the second filter opening plate 205
205 gas mixture of orifice plate impacts filter core 206 under the flow velocity, and gas mixture is in the flow velocity after filter core 206 adsorbs small oil droplet
Under continue to hit the second filter baffle 207, preferable small oil droplet separating effect can be obtained；In yet another embodiment, such as air inlet
The air inflow in hole 212 is 120L/min, and the aperture in the fine filtering hole 217 is set as 2.5mm, and the number in the fine filtering hole 217 is set
Being set to 30, (wherein the outlet end of check valve 214 covers 6, is not covered with 24 by the outlet end of check valve 214, oil gas is mixed
24 uncovered fine filtering holes 217 can be passed through by closing object), make through the flow control of the second filter opening plate 205 in about 17m/s,
200 air pressure inside of pre-separate device is insufficient to allow check valve 214 to be connected at this time, flows through 205 gas mixture of the second filter opening plate and exists
Filter core 206 is impacted under the flow velocity, gas mixture continues to hit the second filter baffle under the flow velocity after filter core 206 adsorbs small oil droplet
207, preferable small oil droplet separating effect can be obtained；When the air inflow of air inlet 212 is promoted to 165L/min from 120L/min
When, 200 air pressure inside of pre-separate device increases, and (gas mixture can pass through check valve 214 for conducting under gas pressure impact
30 fine filtering holes 217), make to flow through 205 oil gas of the second filter opening plate in about 18.7m/s by the flow control of the second filter opening plate 205
Mixture impacts filter core 206 under the flow velocity, and gas mixture continues shock under the flow velocity after filter core 206 adsorbs small oil droplet
Two filter baffles 207, can obtain preferable small oil droplet separating effect；In yet another embodiment, such as the air inflow of air inlet 212
For 200L/min, the aperture in the fine filtering hole 217 is set as 2.4mm, and the number in the fine filtering hole 217 is set as 54 (wherein
The outlet end of check valve 214 covers 12, is not covered with 42 by the outlet end of check valve 214, gas mixture can pass through
42 uncovered fine filtering holes 217), make through the flow control of the second filter opening plate 205 in about 17.5m/s, at this time pre-separation
200 air pressure inside of device is insufficient to allow check valve 214 to be connected, and flows through 205 gas mixture of the second filter opening plate in the flow velocity undershoot
Filter core 206 is hit, gas mixture continues to hit the second filter baffle 207 under the flow velocity after filter core 206 adsorbs small oil droplet, can obtain
Obtain preferably small oil droplet separating effect；When the air inflow of air inlet 212 is promoted to 270L/min from 200L/min, pre-separation dress
The increase of 200 air pressure insides is set, (gas mixture can pass through 54 fine filtering holes to check valve 214 for conducting under gas pressure impact
217), make to flow through 205 gas mixture of the second filter opening plate at this in about 18.4m/s by the flow control of the second filter opening plate 205
Filter core 206 is impacted under flow velocity, gas mixture continues to hit the second filter baffle under the flow velocity after filter core 206 adsorbs small oil droplet
207, preferable small oil droplet separating effect can be obtained.
In one embodiment, it with continued reference to Fig. 2, is additionally provided in first oil return pipe 209 and the second oil return pipe 211 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, filter net type according to an embodiment of the present invention is adaptively adjusted
Then hydraulic motor gas and oil separating plant can carry out gas mixture in gas mixture charging stage separate section oil droplet
Accelerate twice, separate larger oil droplet and small oil droplet respectively and flowed out by oil back chamber, separative efficiency is high；It can also be according to air inflow
Size presets the specification (including pore size and filter opening number) in coarse filtration hole and fine filtering hole, ensures that primary acceleration adds with secondary with this
Flow velocity after speed promotes the efficiency for hitting separation oil droplet, in addition, the filter net type voltage adaptive controlling oil-gas separating device of engine is logical
It crosses setting check valve and has achieved the effect that automatic adjusument pre-separate device internal pressure, divide in advance after coping with air inflow increase
The problem excessive from device air pressure inside is finally 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 filter net type voltage adaptive controlling oil-gas separating device of engine, comprising: the pre-separation dress in valve mechanism cover is arranged in
It sets, the pre-separate device offers air inlet and gas vent, and the valve mechanism cover and pre-separate device combine that form oil gas logical
Road, which is characterized in that the pre-separate device includes:
The sieve plate being arranged on bottom plate, the air inlet are arranged in sieve plate；
The first filter opening plate being arranged in parallel on bottom plate and the first filter baffle, the first oil back chamber on bottom plate and first time under it
The crude separation device of oil pipe composition, the crude separation device are located at sieve plate rear；
It is arranged in parallel in the second filter opening plate on bottom plate, under filter core and the second filter baffle, the second oil back chamber and its on bottom plate
The thin separator of second oil return pipe and the check valve being arranged on the second filter opening plate composition, the thin separator are located at
Crude separation device rear, the gas vent are arranged at thin separator rear.
2. filter net type voltage adaptive controlling oil-gas separating device of engine as described in claim 1, it is characterised in that: the rough segmentation
From coarse filtration hole is provided on the first filter opening plate in device, a filter rib or needle-shaped protrusion are provided on the first filter baffle
The lower section of the first filter baffle is arranged in portion, first oil back chamber, and the first filter baffle is the hatch frame of non-close, described
The bottom of the first oil back chamber is arranged in first oil return pipe.
3. filter net type voltage adaptive controlling oil-gas separating device of engine as described in claim 1, it is characterised in that: the subdivision
From in device the second filter opening plate, filter core and second filter baffle it is snugly into each other be arranged on bottom plate；On the second filter opening plate
It is provided with fine filtering hole, the outlet end of the check valve is fixed on the second filter opening plate, is provided with two filters on the second filter baffle
Rib, the second oil back chamber setting filter baffle rear second, and the second filter baffle is the hatch frame of non-close, described
The bottom of the second oil back chamber is arranged in second oil return pipe.
4. filter net type voltage adaptive controlling oil-gas separating device of engine as described in claim 1, it is characterised in that: the filter core
Material be non-woven fabrics, felt, glass fibre or synthetic fibers in any one.
5. filter net type voltage adaptive controlling oil-gas separating device of engine as described in claim 1, it is characterised in that: described
One oil return 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.
6. filter net type voltage adaptive controlling oil-gas separating device of engine as described in claim 1, it is characterised in that: the exhaust
The escape pipe for gas mixture to be discharged is additionally provided on hole.
7. filter net type voltage adaptive controlling oil-gas separating device of engine as claimed in claim 2, it is characterised in that: the 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. filter net type voltage adaptive controlling oil-gas separating device of engine as claimed in claim 3, it is characterised in that: the fine filtering
The aperture in hole is 2~3mm, and the number in the fine filtering hole is 10~54.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811074016.1A CN109209558A (en) | 2018-09-14 | 2018-09-14 | A kind of filter net type voltage adaptive controlling oil-gas separating device of engine |
| PCT/CN2019/105734 WO2020052655A1 (en) | 2018-09-14 | 2019-09-12 | Oil-gas separation device of filtering adaptive pressure-regulating engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811074016.1A CN109209558A (en) | 2018-09-14 | 2018-09-14 | A kind of filter net type voltage adaptive controlling oil-gas separating device of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109209558A true CN109209558A (en) | 2019-01-15 |
Family
ID=64984071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811074016.1A Withdrawn CN109209558A (en) | 2018-09-14 | 2018-09-14 | A kind of filter net type voltage adaptive controlling oil-gas separating device of engine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109209558A (en) |
| WO (1) | WO2020052655A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020052655A1 (en) * | 2018-09-14 | 2020-03-19 | 广西玉柴机器股份有限公司 | Oil-gas separation device of filtering adaptive pressure-regulating engine |
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| CN109209558A (en) * | 2018-09-14 | 2019-01-15 | 广西玉柴机器股份有限公司 | A kind of filter net type voltage adaptive controlling oil-gas separating device of engine |
| CN109209559A (en) * | 2018-09-14 | 2019-01-15 | 广西玉柴机器股份有限公司 | A kind of filter net type oil-gas separating device of engine |
| CN209244633U (en) * | 2018-09-14 | 2019-08-13 | 广西玉柴机器股份有限公司 | A kind of filter net type voltage adaptive controlling oil-gas separating device of engine |
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- 2018-09-14 CN CN201811074016.1A patent/CN109209558A/en not_active Withdrawn
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| CN202611800U (en) * | 2012-04-20 | 2012-12-19 | 江铃汽车股份有限公司 | Oil and gas separator integrated on cylinder head cover |
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| CN203296864U (en) * | 2013-05-16 | 2013-11-20 | 福建联合动力机电科技有限公司 | Cylinder cover assembly with oil-gas separation device integrated |
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|---|---|
| WO2020052655A1 (en) | 2020-03-19 |
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Application publication date: 20190115 |