CN104411944A - Methods and assemblies for separating liquid from a gas-liquid stream - Google Patents
Methods and assemblies for separating liquid from a gas-liquid stream Download PDFInfo
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- CN104411944A CN104411944A CN201380035945.0A CN201380035945A CN104411944A CN 104411944 A CN104411944 A CN 104411944A CN 201380035945 A CN201380035945 A CN 201380035945A CN 104411944 A CN104411944 A CN 104411944A
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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
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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
- F01M2013/0433—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a deflection device, e.g. screen
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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
- F01M2013/0438—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a 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
- 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
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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)
- Cyclones (AREA)
Abstract
A two stage gas-liquid separator assembly includes a housing having an inlet for receiving a gas-liquid stream and art outlet for discharging a gas stream, A first plenum chamber includes a pre-separator that causes liquid to separate from the gas-liquid stream and to drain to a lower portion of the first plenum chamber. A second plenum chamber includes a main separator downstream of the pre-separator that further causes liquid to separate from the gas-liquid stream and to drain to a lower portion of the second plenum chamber. A first drain port drains liquid from the lower portion of the first plenum chamber and a second drain port drains liquid from the lower portion of the second plenum chamber. Liquid drains from the first and second plenum chambers regardless of a pressure difference between a pressure in the first plenum chamber and a pressure in the second plenum chamber.
Description
Cross-reference to related applications
This application claims rights and interests and the preference of No. 61/677525th, the U.S. Provisional Patent Application that on July 31st, 2012 submits to, the mode that this application is quoted in full is included in herein.
Technical field
The present invention relates to two-stage type gas-liquid separator and the method for separating liquid from gas-liquid flow.
Background technique
The patent No. be 7870850 U. S. Patent (its mode quoted in full include in herein) disclose a kind of crankcase ventilation system of internal-combustion engine, this internal-combustion engine has jet pump, this jet pump from the suction of the oil outlet of gas/oil separator extract (scavenge) isolated oil and by its pumping to crankcase.
U. S. Patent 7614390 (its mode quoted in full is included in herein) discloses two-stage type draining gas-liquid separator assembly, this assembly comprises an inertial gas-liquid impactor separator and an inertial impactor, this inertial gas-liquid impactor separator has one or more nozzle to accelerating through its gas-liquid flow, and the path that this inertial impactor is arranged in speed up gas and liquid stream causes liquid particles to be separated from this gas-liquid flow.This separator assembly is also included in the gathering filter of inertial gas-liquid impactor separator downstream, assembles filter and causes liquid particles to be separated further and the coalescent liquid particles be separated.
The patent No. be 6290738 U. S. Patent (its mode quoted in full include in herein) disclose a kind of inertial gas-liquid separator.Housing has the entrance for receiving gas-liquid flow and is used for discharging the outlet of gas-liquid flow.Nozzle arrangements in housing has multiple nozzle, and it is received the gas-liquid flow from entrance and is accelerated this gas-liquid flow by nozzle.The inertia trap on the path of speed up gas and liquid stream in housing causes gas-liquid flow direction sharply to change, and preferably there is coarse porous collection surface, compare smooth atresia impact surface, this coarse porous collection surface causes the liquid particles be separated from gas-liquid flow to be the sharp-pointed deadline size that the liquid particles of smaller szie does not have the latter simultaneously, thus improves the overall separation efficiency of less liquid particles.Provide various casing structure and geometrical shape.
Summary of the invention
There is provided content of the present invention to introduce the selection of each concept, described concept will be described in further detail in a specific embodiment.Content of the present invention is not intended to key feature or the essential feature of determining theme required for protection, neither be intended to the scope for helping to limit theme required for protection.
The present invention relates to a kind of two-stage type gas-liquid separator assembly, described two-stage type gas-liquid separator assembly comprises housing, and this housing has and is from upstream to downstream through its stream and the entrance had for receiving gas-liquid flow and be used for discharging the outlet of air-flow.First pumping chamber is limited by housing and comprises preseparator, and this preseparator causes liquid to be separated from gas-liquid flow and this liquid is discharged to the bottom of described first pumping chamber.Second pumping chamber is limited by housing and comprises the main separator being positioned at described preseparator downstream, and this main separator causes liquid to be separated from gas-liquid flow further and this liquid is discharged to the bottom of described second pumping chamber.Liquid is discharged from the bottom of the first pumping chamber by the first liquid port being positioned at housing and the bottom of liquid from the second pumping chamber is discharged by the second liquid port of being positioned at housing.Liquid is discharged respectively by the bottom of described first and second liquid ports from described first and second pumping chambers, and regardless of the pressure reduction between the pressure in described first pumping chamber and the pressure in described second pumping chamber.
Also disclose a kind of method of separating liquid from gas-liquid flow.Described method comprises: gas-liquid flow introduced in housing, and described housing has and is from upstream to downstream through its stream.Described method to be also included in the first pumping chamber of being limited by described housing separating liquid from gas-liquid flow and liquid to be discharged to the bottom of described first pumping chamber and to flow through the first liquid port.Described method be also included in be limited by described housing and the second pumping chamber being arranged in the downstream of described first pumping chamber from gas-liquid flow separating liquid liquid be discharged to the bottom of described second pumping chamber and flow through the second liquid port further.Described method also comprises respectively by the bottom pumping liquid of described first and second liquid ports from described first and second pumping chambers.
Also disclose a kind of assembly of the liquid for removing extraction from two-stage type gas-liquid separator.Described assembly comprises the first suction port and the second suction port, and described first suction port receives the extracting liq from the first order of gas-liquid separator, and described second suction port receives the extracting liq from the second level of gas-liquid separator.Pressure fluid accelerates to enter described first suction port by the first spray-hole.Pressure fluid accelerates to enter the second suction port by the second spray-hole.Intake port gives described first and second spray-hole supplied with pressurised fluid simultaneously.Total mix aperture receives pressure fluid from described first and second spray-holes and the extraction fluid of first and second grades that receives from described gas-liquid separator.
Brief Description Of Drawings
Describe the embodiment of assembly and the method used in conjunction with crankcase bleeder with reference to the accompanying drawings.In whole accompanying drawing, the element that identical characteristic sum is identical uses identical reference character.
Fig. 1 is the schematic diagram of an embodiment of crankcase ventilation system;
Fig. 2 illustrates an embodiment of two-stage type gas-liquid separator, and in one embodiment, it is for crankcase ventilation system;
Fig. 3 illustrates when observing from an opposition side in fig. 2, through the flow path of the gas-liquid separator in Fig. 2;
Fig. 4 and Fig. 5 illustrates the sectional view of the gas-liquid separator through Fig. 2 and Fig. 3, and wherein Fig. 4 is plan view and Fig. 5 is worm's eye view;
Fig. 6 illustrates the bottom detailed drawing of gas-liquid separator;
Fig. 7 illustrates the bottom cross-sectional detail figure of gas-liquid separator, and in conjunction with the embodiment of jet pump that gas-liquid separator uses;
Fig. 8 illustrates the top plan view of jet pump;
Fig. 9 is that fluid passes schematically illustrating of jet pump;
Figure 10 illustrates another embodiment of two-stage type gas-liquid separator; And
Figure 11 illustrates the schematic diagram of another embodiment of crankcase ventilation system.
Figure 12 illustrates an embodiment of the method according to the present invention's separating liquid from gas-liquid flow.
Embodiment
Crankcase ventilation system is combined with internal-combustion engine, and this internal-combustion engine produces the blow-by gas comprising machine oil and oily aerosol spray in crankcase.Gas-liquid separator or aerosol spray oil or deaerator have receive from the blow-by gas of crankcase and the entrance of oily aerosol spray.Clean blow-by gas is entered air or turns back to engine intake by gas outlet.The oil of the separation of extracting (scavenge) is turned back to crankcase by oil outlet.Gas-liquid separator has a pressure drop, makes pressure in its ingress and crankcase higher than the pressure at its gas outlet and oil outlet place by this pressure drop.The pressure reduction at the oil outlet place of crankcase and this separator can cause and refluxes from high pressure crankcase to the oil of low pressure oil outlet.In addition, according to the ventilation position of crankcase ventilation system, the large quantity of fluid entering this gas-liquid separator may be there is.
According to the present invention, Fig. 1 illustrates the crankcase ventilation system 10 of internal-combustion engine 12, and internal-combustion engine 12 produces the blow-by gas comprising machine oil 16 and oily aerosol spray in crankcase 14.System 10 comprises gas-liquid separator 18, such as deaerator, gas-liquid separator 18 has entrance 20 and gas outlet 22, entrance 20 receives blow-by gas from crank box 14 and oily aerosol spray (being illustrated by arrow 21), and clean blow-by gas is entered air (being illustrated by arrow 23) or by clean blow-by gas return engine suction port (see Figure 11) by gas outlet 22.Gas-liquid separator 18 also comprises oil outlet 24, and the oil of the separation of extraction is discharged and turned back to crankcase 14 by oil outlet 24, and this hereafter will further describe.
System 10 also comprises jet pump 26, and the oil pump of the separation of the extraction from oil outlet 24 is got back to crankcase 14 by jet pump 26.Motor 12 comprises oil circulating system 28, and oil circulating system 28 is circulated to the machine oil 16 from crankcase 14 by oil pump 30.Compressed oil is sent to selected engine components by filter 32 by oil pump 30, such as piston 34 and bent axle 36, and then is returned crankcase 14.Compressed oil is also transported to jet pump 26 by filter 32.
Another embodiment of gas-liquid separator 18 is described now with reference to Fig. 2.Gas-liquid separator 18 comprises housing 38, and housing 38 has through it from upstream (entrance 20) to the runner of downstream (exporting 22 places).Housing has the entrance 20 for receiving gas-liquid flow and is used for discharging the outlet 22 of gas-liquid flow.Housing 38 comprises the first pumping chamber 40 of pumping chamber 40, first and is limited by housing 38 and comprise preseparator 41, and preseparator 41 causes liquid to be separated from gas-liquid flow and is discharged to the bottom 42 of the first pumping chamber 40.Gas-liquid separator 18 also comprises the second pumping chamber 44, second pumping chamber 44 is limited by housing 38 and comprises main separator 43, and main separator 43 is arranged in preseparator 41 downstream and causes liquid be separated from gas-liquid flow and be discharged to the bottom 46 of the second pumping chamber 44 further.
Fig. 3 illustrates that fluid is by gas-liquid separator 18.As shown in arrow 48, gas-liquid flow enters housing 38 at entrance 20 place.Then gas-liquid flow is transferred by preseparator 41 (such as shown here and the cyclone separator that will hereafter further describing), when gas-liquid flow is guided through housing 38 (as shown in arrow 50), preseparator 41 causes liquid to be separated from gas-liquid flow.In preseparator, some liquid are separated from gas-liquid flow, and then the gas-liquid flow of this pre-separation enters the second pumping chamber 44, as shown in arrow 52.Second pumping chamber 44 comprises main separator 43, the such as shown here and impingement separator that will hereafter further describing.This gas-liquid flow accelerates (as shown in arrow 54) by impingement separator, then leaves impingement separator (as shown in arrow 56).Then this gas-liquid flow leaves housing 38 (as shown in arrow 58) via outlet 22.According to the present invention, be separated gas-liquid flow and discharged from housing 38, also will hereafter further describe as illustrated by arrows 60 and 62.The liquid of the bottom 42 from the first pumping chamber 40 is discharged by the first liquid port 64 of housing 38.The liquid of the bottom 46 from the second pumping chamber 44 is discharged by the second liquid port 66 of housing 38.Liquid is discharged from the first and second pumping chambers 40,44 respectively by the first and second liquid ports 64,66, no matter by the pressure reduction between the pressure in the pressure in the first pumping chamber 40 hereafter further described and the second pumping chamber 44.
Relative to each Fig. 2-6, in the embodiment shown in it, preseparator 41 is cyclone separators, but preseparator 41 can comprise the gas-liquid separator of other type various.The air tangentially entering entrance 20 is directed around baffle plate 94 (as shown in arrow 48), and the directed curved surface (as shown in arrow 50) limited around the internal surface 110 by housing 38.When air enters housing 38, pressure drop minimizes by baffle plate 94.Air is led by chimney stack 96 to a certain extent, and chimney stack 96 is supported by housing 38 and extends into the second pumping chamber 44 from the first pumping chamber 40, and chimney stack 96 allows gas-liquid flow to flow through its inside.In gas-liquid flow circulation time (as shown in arrow 50), heavier liquid particles falls the bottom 42 of the first pumping chamber 40.In addition, heavier liquid particles is assembled along the internal surface 110 of housing 38 and is discharged to the bottom 42 of the first pumping chamber 40.Afterwards, the liquid collected in the first bottom 42, pumping chamber 40 is discharged from housing 38 via the first liquid port 64.To flow and after isolating heavier liquid particles, fluid directly leaves through chimney stack 96 and enters impingement separator or assemble separator completing cyclone.Chimney stack 96 comprises the second liquid port 66, comprises pipe fitting 114 in the embodiment shown, and pipe fitting 114 extends downwardly into jet pump 26.The downstream end 100 of chimney stack 96 is molded directly into main separator 43 (Fig. 2).
In the embodiment shown in Fig. 2-5, main separator 43 comprises impingement separator, this impingement separator comprises spray nozzle board 98, spray nozzle board 98 is connected to the downstream end 100 of chimney stack 96 and the multiple nozzles 102 had through this spray nozzle board, and the striking plate 104 of gas-liquid flow towards spray nozzle board 98 downstream accelerates by nozzle 102.This accelerates through arrow 54 and illustrates in figure 3.In the embodiment shown, main separator 43 is the variable impingement separators also comprising valve, this valve comprises and is installed on spring 150 in cup 153 and disk 152, wherein spray nozzle board 98 is by being ultrasonically bonded to the downstream end 100 of chimney stack 96, or in one alternate embodiment, spray nozzle board 98 by spin welding, be threaded, downstream end 100 that the mode such as gummed is connected to chimney stack 96.In the form described in Fig. 2, spring 150 and disk 152 are all positioned at a closed plate valve structure.But when the pressure produced by the fluid flowing through chimney stack 96 is greatly to when enough overcoming the elastic force of spring 150, disk 152 departs from cup 153 and gas-liquid flow flows into cup 153 then passes spray nozzle board 98.According to motor 12, the nozzle 102 of different number and size and different springs 150 can be used.Variable impingement separator and associated component can be changed to adapt to various range of flow, restriction and efficiency requirements.
In the embodiment shown, guard shield 106 is from striking plate 104 circumference to downward-extension and at least around the downstream end 100 of chimney stack 96.Guard shield 106 causes air-flow flowing as shown in arrow 56.Direction is sharply caused to change by gas-liquid flow impact plate 104 and isolated liquid particles falls from guard shield 106 and falls into the bottom 46 of the second pumping chamber 44.Be describe in the U. S. Patent (mode quoted in full of this patent is included in herein) of 6290738 to be separated by impingement separator in the patent No., therefore explain no longer in detail herein.
As shown in Fig. 2,3 and 6, the bottom 46 of the second pumping chamber 44 comprises funnel 108, and funnel 108 slopes down to the outer wall 112 of chimney stack 96 from the internal surface 110 of housing 38, thus liquid is discharged to the second liquid port 66.In the embodiment shown, the second liquid port 66 comprises pipe fitting 114, pipe fitting 114 extends from the bottom (particularly from the foot 46 of funnel 108) of the second pumping chamber 44, arrives jet pump 26 through the first pumping chamber 40.Pipe fitting 114 and the first pumping chamber 40 hermetic seal, thus the pressure in the first pumping chamber 40 do not affect oil discharged by pipe fitting 114.In embodiment illustrated herein, the cylindrical protrusions 115 that pipe fitting 114 extends via the bottom 42 from the first pumping chamber 40 is connected to jet pump 26.
Gas-liquid separator 18 also comprises pipeline 68 (Fig. 3), pipeline 68 is connected to housing 38 and is communicated with the first and second liquid port 64,66 fluids, liquid is transported to housing 38 from the bottom 42,46 of the first and second pumping chambers 40,44 by the first and second liquid ports 64,66, as illustrated by arrows 60 and 62.In embodiment illustrated herein, pipeline 68 comprises pump, and the bottom 42,46 of liquid from the first and second pumping chambers 40,44 removes respectively by the first and second liquid ports 64,66 by this pump.In one embodiment, this pump comprises the jet pump 26 (see Fig. 7-9) be communicated with the first and second liquid port 64,66 fluids.In embodiment illustrated herein, jet pump 26 is bolted the bottom 140 of the housing 38 of gas-liquid separator 18.Alternatively, jet pump 26 can be integrally molded into the bottom 140 (Fig. 2 and Fig. 3) of the housing 38 of gas-liquid separator 18, or is connected to housing in some other manner.
Now with reference to Fig. 7-9, jet pump 26 is described in more detail.As illustrated schematically in figure 9, jet pump 26 enters the larger mix aperture of diameter 74 by the spray-hole 72 motive fluid being directed across diameter reduction and runs, and suction chamber 76 is around mix aperture 74.The high speed motive force low speed sprayed in fluid and mix aperture 74 from power injection hole 72 creates pump around the momentum transfer between fluid and inhales effect, and this pump is inhaled effect pump from suction chamber 76 and inhaled fluid, such as, shown in flow graph.The example of jet pump is in " The Design of Jet Pumps " ((NACA of Gustaf Fu Liugeer (Gustav Flugel), technical memorandum No.982,1939) and " Jet PumpTheory and Performance with Fluids of High Viscosity " (ASME meeting minutes of RG Cunningham's skink, November nineteen fifty-seven, 1807-1820 page) in have description.In the embodiment shown in fig. 9, jet pump 26 is that fluid drives jet pump, it has pressurization spray orifice 72, suction chamber 76 and exports mix aperture 74, pressurization spray orifice 72 receives the motive fluid of pressurization from the source of pressurised fluid of such as oil pump 30, suction chamber 76 receives the oil of the separation of the oil outlet 24 from gas-liquid separator 18, exports mix aperture 74 and jet pump oil suction is sent to crankcase 14 (as shown in Figure 1).
Referring now to Fig. 7 and Fig. 8, in embodiment shown in it, jet pump 26 comprises the first spray-hole 78 and the second spray-hole 80, first spray-hole 78 pairs pressure fluid accelerates thus from the first liquid port 64 pumping liquid, and the second spray-hole 80 pairs pressure fluid accelerates thus from the second liquid port 66 pumping liquid.First and second spray-holes 78,80 correspond to the spray-hole 72 schematically shown in Fig. 9.Jet pump 26 also comprises intake port 82, and intake port 82 gives the first and second spray-hole 78,80 supplied with pressurised fluid.Intake port 82 supplied with pressurised fluid is given via the power conduit 125 in Fig. 1 and Fig. 8 or the power conduit in Figure 11 138.Jet pump 26 also comprises the first suction port 84 and the second suction port 86, first suction port 84 receives from the liquid of the first liquid port 64 and the pressure fluid from the first spray-hole 78, and the second suction port 86 receives from the liquid of the second liquid port 66 and the pressure fluid from the second spray-hole 80.Suction port 84,86 corresponds to the schematic suction chamber 76 in Fig. 9.Jet pump 26 comprises total mix aperture 88, and total mix aperture 88 receives the liquid from the first suction port 84 and the second suction port 86 simultaneously.Middle mix aperture 90,92 respectively between total mix aperture 88 and the first and second suction ports 84,86.Mix aperture 88,90 and 92 corresponds to the schematic mix aperture 74 in Fig. 9.
With reference to Fig. 7 and Fig. 8, the assembly being used for the extracting liq removed from two-stage type gas-liquid separator is described continuing.This assembly comprises the extracting liq that the first suction port 84, first suction port 84 receives the first order (such as preseparator 41) from gas-liquid separator 18.This assembly comprises the extracting liq that the second suction port 86, second suction port 86 receives the second level (such as main separator 43) from gas-liquid separator 18.Pressure fluid accelerates to enter the first suction port 84 by the first spray-hole 78.Pressure fluid accelerates to enter the second suction port 86 by the second spray-hole 80.Intake port 82 gives the first and second spray-hole 78,80 supplied with pressurised fluid simultaneously.Total mix aperture 88 receives pressure fluid from the first and second spray-holes 78,80 and the extraction fluid of first and second grades that receives from gas-liquid separator.This assembly also comprises the first connection mouth 120 and the second connection mouth 122, liquid from outlet (being such as positioned at the first liquid port 64 of the first order of gas-liquid separator 18) is sent to the first suction port 84, second connection mouth 122 and the liquid from outlet (being such as positioned at the second liquid port 66 of the second level of gas-liquid separator 18) is sent to the second suction port 86 by the first connection mouth 120.In the embodiment shown, the first and second suction ports 84,86 extend vertically up to the pressure fluid flowing accelerated, and this pressure fluid accelerated flows out (also seeing Fig. 9) from the first and second spray-holes 78,80 respectively.As illustrated in figures 1 and 8, this assembly can also comprise discharge conduit 124, and discharge conduit 124 is connected with mixing tube 88 thus the extracting liq from mixing tube 88 is discharged to the crankcase 14 of motor 12.
Second embodiment of gas-liquid separator 18 ' is described now with reference to Figure 10.Gas-liquid separator 18 ' comprises entrance 20 and outlet 22, and entrance 20 is used for receiving gas-liquid flow, and outlet 22 is used for discharging air-flow.Identical with the first embodiment, the second embodiment of gas-liquid separator 18 ' comprises preseparator 41, and preseparator 41 is cyclone separator and has arcuate blocking piece 94, and arcuate blocking piece 94 guides gas-liquid flow around the internal surface 110 of housing 38 in the first pumping chamber 40.Then gas-liquid flow is guided to and flows through chimney stack 96.Here, gas-liquid flow is guided through main separator 43, and in a first embodiment, separator assembled by main separator 43, and it comprises filter medium 116, and filter medium 116 is connected to the downstream end 100 of chimney stack 96.Air flows through filter medium 116 along interior outwards (inside and outside) direction, as represented by arrow 118.Filter medium 116 have cause oil on filter medium 116/interior gathering and thus from gas-liquid flow isolated character.
In the embodiment shown in fig. 1, pressure fluid is oil, and in the embodiment shown in fig. 11, pressure fluid is air.As shown in figure 11, air supplies jet pump 26 via power conduit 138.Turbosupercharger 126 (being supplied by the gas of the outlet 22 leaving gas-liquid separator 18) shown in this embodiment provides superheated steam to jet pump 26, as indicated by the arrows 128.Alternatively, air compressor (such as illustrating with dotted line 130) or compressed air cylinder (such as illustrating with dotted line 132) provide forced air to jet pump 26.Can one or more safety check 134,136 be set in power conduit 138 and/or discharge conduit 124, thus prevents from refluxing when low or negative air supply pressure.
What assembly described herein obtained is integrated product, it is before main separator 43, the coarse liquid oils of challenge that has is isolated (such as by the preseparator 41 of such as cyclone separator), what this was coarse has the liquid oils of challenge to flow back to motor 12, to realize high efficiency via the first liquid port 64.Then gas and oil mixture is separated and discharges from housing 38 via the second liquid port 66 in main separator 43 (such as impingement separator (Fig. 1) or cyclone separator (Figure 10)).
Jet pump 26 provides a kind of discharge from housing 38 and extracts oily approach, and regardless of the pressure in the first pumping chamber 40 and the pressure reduction between the pressure in the second pumping chamber 44.Two the Anywhere all mutually hermetic seals of chamber 40,44 except nozzle 102.Be provided with hermetic seal at the first and second liquid ports 64,66, thus anti-fluid (such as via the second liquid port 66) leaks into the second pumping chamber 44 (it is in lower pressure) from the first pumping chamber 40 (it is in elevated pressures).If fluid leaks by this way, then due to the pressure of the increase of the second liquid port 66, fluid is discharged to the second pumping chamber 44 and no longer may.Because jet pump 26 is initiatively discharged Liang Ge pumping chamber 40,44 instead of relied on oil column head to overcome pressure reduction, so extraction oil is discharged from housing 38 by the pressure no longer needing the high pressure due to the oil of the second pumping chamber 44 gathering to overcome in the first pumping chamber 40.Which eliminate necessity that safety check is set between chamber 40,44.This also eliminates and gas-liquid separator 18 is designed to thus limits necessity that pressure reduction runs to make safety check under certain engine condition.This also allows gas-liquid separator 18 run under the engine condition of wide range and do not consider to affect the restriction of oily reflux capability.
Spray-hole 78,80 in jet pump 26 can be by single intake port (such as intake port 82) charging, and from discharge (such as by total mix aperture 88) to single discharge conduit 124.The high-pressure liquid sprayed by the first and second spray-holes 78,80 allows oil to discharge independent of the pressure in housing 38 in housing 38.This discharge is independent of relative pressure between the pressure in the first and second pumping chambers 40,44 and independent of the pressure in crankcase 14.
Referring now to Figure 12, provide a kind of method of separating liquid from gas-liquid flow in another embodiment.The method comprises to be introduced in housing 38 by gas-liquid flow, and housing 38 has and is from upstream to downstream through its stream, as shown in square frame 201.The method also comprises separating liquid from the gas-liquid flow in the first pumping chamber 40, and the first pumping chamber 40 is limited by housing 38, as shown in block 202.The method also comprises the bottom 42 that liquid is discharged to the first pumping chamber 40 and flows through the first liquid port 64, as shown in block 203.The method also comprises further separating liquid from the gas-liquid flow in the second pumping chamber 44, and the second pumping chamber 44 is limited by housing 38 and is positioned at the downstream of the first pumping chamber 40, as represented by block 204.The method also comprises the bottom 46 that liquid is discharged to the second pumping chamber 44 and flows through the second liquid port 66, as shown in block 205.The method also comprises respectively by bottom 42,46 pumping liquid of the first and second liquid ports 64,66 from the first and second pumping chambers 40,44, as indicated in box 206.
The method can also comprise and from the first and second liquid ports 64,66, liquor pump is drawn onto the first and second suction ports 84,86 respectively.The method can also comprise to be accelerated to enter the first and second suction ports 84,86 by pressure fluid respectively by the first and second spray-holes 78,80, thus respectively from bottom 42,46 pumping liquid of the first and second pumping chambers 40,44.The method also comprises, from total source of pressurised fluid, pressure fluid is supplied to the first and second spray-holes 78,80.The method also can comprise and the pressure fluid from the first spray-hole 78 and the liquid from the first liquid port 64 being mixed in total mix aperture 88 with the pressure fluid from the second spray-hole 80 and the liquid from the second liquid port 66.As shown in Figure 1, in one embodiment, pressure fluid is that oil and this oily oil pump 30 from being connected to crankcase 14 provide.As shown in figure 11, in another embodiment, this pressure fluid is that air and this air provide from turbosupercharger 126.
In the above description, for simplicity, clear and easy understand employs some term.Therefrom should not release the unnecessary restriction exceeding prior art needs, because use these terms to be objects in order to describe and be intended to be construed broadly.Different apparatus and method described above can be used alone and also can be combined with other apparatus and method herein.The various equivalent form of value, substitutions and modifications all may fall into the scope of claims.Each restriction of claims is intended to quote 35U.S.C. § 112 (f) to explain, unless clearly quoted term " device is used for " or " step is used for " in each restriction.Although each claim to a method comprises a series of step specifically realizing the method, but scope of the present invention is not intended to be retrained by the word content of literal order described herein or step, and the difference of unsubstantiality or change still fall into scope of the present invention.
Claims (35)
1. a two-stage type gas-liquid separator assembly, is characterized in that, described two-stage type gas-liquid separator assembly comprises:
Housing, this housing has and is from upstream to downstream through its stream and the entrance had for receiving gas-liquid flow and be used for discharging the outlet of air-flow;
First pumping chamber, this first pumping chamber is limited by housing and comprises preseparator, and this preseparator causes liquid to be separated from gas-liquid flow and this liquid is discharged to the bottom of described first pumping chamber;
Second pumping chamber, this second pumping chamber is limited by housing and comprises the main separator being positioned at described preseparator downstream, and this main separator causes liquid to be separated from gas-liquid flow further and this liquid is discharged to the bottom of described second pumping chamber;
First liquid port, this first liquid port is positioned at housing and is discharged the bottom of liquid from described first pumping chamber; And
Second liquid port, this second liquid port is positioned at housing and is discharged the bottom of liquid from described second pumping chamber; Wherein
Liquid is discharged respectively by the bottom of described first and second liquid ports from described first and second pumping chambers, and regardless of the pressure reduction between the pressure in described first pumping chamber and the pressure in described second pumping chamber.
2. assembly according to claim 1, is characterized in that, also comprises pipeline, and this pipeline and described first and second liquid ports all fluid are communicated with, and the bottom of liquid from described first and second pumping chambers is transported to described housing by described first and second liquid ports.
3. assembly according to claim 2, is characterized in that, described pipeline comprises pump, and the bottom of liquid from described first and second pumping chambers removes respectively by described first and second liquid ports by this pump.
4. assembly according to claim 3, is characterized in that, described pump comprises jet pump, and this jet pump and described first and second liquid ports all fluid are communicated with.
5. assembly according to claim 4, it is characterized in that, described jet pump comprises the first spray-hole and the second spray-hole, pressure fluid accelerates by described first spray-hole thus from described first liquid port pumping liquid, described second spray-hole is by pressure fluid acceleration thus from described second liquid port pumping liquid.
6. assembly according to claim 5, is characterized in that, described pressure fluid is oil.
7. assembly according to claim 5, is characterized in that, described jet pump comprises intake port, and this intake port is to described first and second spray-holes all supplied with pressurised fluid.
8. assembly according to claim 7, it is characterized in that, described jet pump comprises the first suction port and the second suction port, described first suction port receives liquid from described first liquid port and receives pressure fluid from described first spray-hole, and described second suction port receives liquid from described second liquid port and receives pressure fluid from described second spray-hole.
9. assembly according to claim 8, is characterized in that, described jet pump comprises mix aperture, and this mix aperture all receives liquid from described first suction port and described second suction port.
10. assembly according to claim 4, is characterized in that, described jet pump is connected to described housing.
11. assemblies according to claim 10, is characterized in that, described second liquid port comprises pipe fitting, and described pipe fitting extends through described first pumping chamber from the bottom of described second pumping chamber and arrives described jet pump.
12. assemblies according to claim 1, is characterized in that, also comprise by the chimney stack of housings support, and described chimney stack extends into described second pumping chamber from described first pumping chamber and allows gas-liquid flow to pass its flowing.
13. assemblies according to claim 12, is characterized in that, the bottom of described second pumping chamber comprises funnel, and liquid from the inclined downward of described housing to the outer wall of described chimney stack, thus is discharged to described second liquid port by described funnel.
14. assemblies according to claim 12, it is characterized in that, described main separator is impingement separator, this impingement separator comprises spray nozzle board, this spray nozzle board is connected to the downstream end of described chimney stack and the multiple nozzles had through it, and the striking plate of gas-liquid flow towards described spray nozzle board downstream accelerates by described multiple nozzle.
15. assemblies according to claim 14, is characterized in that, also comprise guard shield, and this guard shield is from described striking plate circumference to downward-extension and at least around the downstream end of described chimney stack.
16. assemblies according to claim 12, is characterized in that, separator assembled by described main separator, and this gathering separator comprises the filter medium of the downstream end being connected to described chimney stack.
17. assemblies according to claim 1, is characterized in that, described preseparator is cyclone separator.
18. assemblies according to claim 17, is characterized in that, also comprise the arcuate blocking piece near described entrance, and when gas-liquid flow enters described first pumping chamber, described arcuate blocking piece guides gas-liquid flow along the internal surface of described first pumping chamber.
The method of 19. 1 kinds of separating liquids from gas-liquid flow, is characterized in that, described method comprises:
Gas-liquid flow introduced in housing, described housing has and is from upstream to downstream through its stream;
In the first pumping chamber from gas-liquid flow separating liquid, this first pumping chamber is limited by described housing;
Liquid be discharged to the bottom of described first pumping chamber and flow through the first liquid port;
In the second pumping chamber from gas-liquid flow further separating liquid, this second pumping chamber is limited by described housing and is positioned at the downstream of described first pumping chamber;
Liquid be discharged to the bottom of described second pumping chamber and flow through the second liquid port; And
Respectively by the bottom pumping liquid of described first and second liquid ports from described first and second pumping chambers.
20. methods according to claim 19, is characterized in that, also comprise and from described first and second liquid ports, liquor pump are drawn onto the first and second suction ports respectively.
21. methods according to claim 20, is characterized in that, also comprise and are accelerated to enter described first and second suction ports by pressure fluid respectively by the first and second spray-holes, thus respectively from the bottom pumping liquid of described first and second pumping chambers.
22. methods according to claim 21, is characterized in that, also comprise, from total source of pressurised fluid, pressure fluid are supplied described first and second spray-holes.
23. methods according to claim 22, it is characterized in that, by the pressure fluid from described first spray-hole and the liquid from described first liquid port with the pressure fluid from described second spray-hole with mix in total mixing chamber from the liquid of described second liquid port.
24. assemblies according to claim 21, is characterized in that, described pressure fluid is oil.
25. assemblies according to claim 24, is characterized in that, described oil supply is connected to the oil pump of the crankcase of motor certainly.
26. assemblies according to claim 21, is characterized in that, described pressure fluid is air.
27. assemblies according to claim 26, is characterized in that, described air provides from turbosupercharger.
28. 1 kinds of assemblies, for from two-stage type gas-liquid separator from the liquid removing extraction, is characterized in that, described assembly comprises:
First suction port, this first suction port receives the extracting liq from the first order of gas-liquid separator;
Second suction port, this second suction port receives the extracting liq from the second level of gas-liquid separator;
First spray-hole, pressure fluid accelerates to enter described first suction port by this first spray-hole;
Second spray-hole, pressure fluid accelerates to enter the second suction port by this second spray-hole;
Intake port, this intake port gives described first and second spray-hole supplied with pressurised fluid; And
Total mix aperture, this total mix aperture receives pressure fluid from described first and second spray-holes and the extraction fluid of first and second grades that receives from described gas-liquid separator.
29. assemblies according to claim 28, it is characterized in that, also comprise the first connection mouth and the second connection mouth, described first connection mouth by the Liquid transfer of the outlet of the first order from described gas-liquid separator to described first suction port, described second connection mouth by the Liquid transfer of the outlet of the second level from described gas-liquid separator to described second suction port.
30. assemblies according to claim 28, is characterized in that, described first and second suction ports extend vertically up to the pressure fluid flowing accelerated, and this pressure fluid accelerated is respectively from described first and second spray-holes.
31. assemblies according to claim 28, is characterized in that, also comprise discharge conduit, and this discharge conduit is connected with described total mix aperture thus the extracting liq from described total mix aperture is discharged to the crankcase of motor.
32. assemblies according to claim 28, is characterized in that, described pressure fluid is oil.
33. assemblies according to claim 28, is characterized in that, described pressure fluid is air.
34. assemblies according to claim 28, is characterized in that, described assembly is integrally molded to the bottom of the housing of described gas-liquid separator.
35. assemblies according to claim 28, is characterized in that, described assembly bolt connects the bottom of the housing of described gas-liquid separator.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261677525P | 2012-07-31 | 2012-07-31 | |
| US61/677,525 | 2012-07-31 | ||
| US13/954,118 | 2013-07-30 | ||
| US13/954,118 US20140033922A1 (en) | 2012-07-31 | 2013-07-30 | Methods and Assemblies for Separating Liquid from a Gas-Liquid Stream |
| PCT/US2013/052710 WO2014022385A1 (en) | 2012-07-31 | 2013-07-30 | Methods and assemblies for separating liquid from a gas-liquid stream |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104411944A true CN104411944A (en) | 2015-03-11 |
Family
ID=50024197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380035945.0A Pending CN104411944A (en) | 2012-07-31 | 2013-07-30 | Methods and assemblies for separating liquid from a gas-liquid stream |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20140033922A1 (en) |
| CN (1) | CN104411944A (en) |
| DE (1) | DE112013003821T5 (en) |
| WO (1) | WO2014022385A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108713001A (en) * | 2016-10-17 | 2018-10-26 | 日本测器株式会社 | Oil film retracting device and oil film recovery method |
| CN111315466A (en) * | 2017-11-15 | 2020-06-19 | 康明斯过滤Ip公司 | Oil management structure in crankcase ventilation |
| CN113309598A (en) * | 2020-02-27 | 2021-08-27 | 康明斯滤清系统公司 | Separator assembly with multiple separators and single jet pump assembly |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB201113072D0 (en) * | 2011-07-29 | 2011-09-14 | Parker Hannifin Mfg Uk Ltd | A separator |
| US9737835B2 (en) * | 2012-07-31 | 2017-08-22 | Cummins Filtration Ip, Inc. | Methods and apparatuses for separating liquid particles from a gas-liquid stream |
| US8992667B2 (en) | 2012-08-16 | 2015-03-31 | Cummins Filtration Ip, Inc. | Systems and methods for closed crankcase ventilation and air filtration |
| US9447714B2 (en) * | 2014-04-16 | 2016-09-20 | General Electric Company | Systems and methods for coalescing internal combustion engine blow-by |
| US9669346B2 (en) * | 2014-05-28 | 2017-06-06 | Ingersoll-Rand Company | Compressor system and oil separation system |
| US20150362198A1 (en) * | 2014-06-15 | 2015-12-17 | Unimicron Technology Corp. | Dehumidification apparatus and dehumidification method |
| DE102014012094A1 (en) * | 2014-08-13 | 2016-02-18 | Hydac Process Technology Gmbh | Device for the treatment of fluid mixtures |
| DE102014223291A1 (en) * | 2014-11-14 | 2016-05-19 | Mahle International Gmbh | liquid separation |
| EP3156114B1 (en) | 2015-10-14 | 2018-04-04 | Alfdex AB | A separator arrangement for cleaning gas |
| EP3788265B1 (en) | 2018-05-02 | 2023-07-05 | Parker Hannifin EMEA S.à.r.l. | Jet pump diffuser for a separator |
| WO2020117335A1 (en) * | 2018-12-06 | 2020-06-11 | Cummins Filtration Ip, Inc. | Chimney for impactor nozzles and integrated assembly |
| GB201900906D0 (en) | 2019-01-23 | 2019-03-13 | Rolls Royce Plc | Oil scavenge system |
| CN110685660B (en) * | 2019-11-01 | 2024-04-16 | 西南石油大学 | Device and method for realizing accurate control of concentration of sand-carrying fluid in proppant conveying experiment |
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- 2013-07-30 CN CN201380035945.0A patent/CN104411944A/en active Pending
- 2013-07-30 DE DE112013003821.8T patent/DE112013003821T5/en not_active Withdrawn
- 2013-07-30 WO PCT/US2013/052710 patent/WO2014022385A1/en active Application Filing
- 2013-07-30 US US13/954,118 patent/US20140033922A1/en not_active Abandoned
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| EP0191153A2 (en) * | 1984-11-22 | 1986-08-20 | Rotorcomp Verdichter GmbH | Fluidseparator, especially gas/liquid separator |
| US20080149574A1 (en) * | 2006-12-22 | 2008-06-26 | Brian Read | Gas/Liquid Separator Assembly with Preseparator and Liquid Filter, and Methods |
| CN101730787A (en) * | 2007-07-26 | 2010-06-09 | 康明斯滤清系统股份有限公司 | The crankcase ventilation system that has pumped scavenged oil |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108713001A (en) * | 2016-10-17 | 2018-10-26 | 日本测器株式会社 | Oil film retracting device and oil film recovery method |
| CN108713001B (en) * | 2016-10-17 | 2019-05-07 | 日本测器株式会社 | Oil film recyclable device and oil film recovery method |
| CN111315466A (en) * | 2017-11-15 | 2020-06-19 | 康明斯过滤Ip公司 | Oil management structure in crankcase ventilation |
| CN113309598A (en) * | 2020-02-27 | 2021-08-27 | 康明斯滤清系统公司 | Separator assembly with multiple separators and single jet pump assembly |
| CN113309598B (en) * | 2020-02-27 | 2023-05-26 | 康明斯滤清系统公司 | Separation assembly with multiple separators and single jet pump assembly |
| US11828213B2 (en) | 2020-02-27 | 2023-11-28 | Cummins Filtration Inc. | Separation assembly with multiple separators and a single jet pump assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014022385A1 (en) | 2014-02-06 |
| US20140033922A1 (en) | 2014-02-06 |
| DE112013003821T5 (en) | 2015-05-21 |
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Application publication date: 20150311 |