CN100430577C - Particulate trap - Google Patents
Particulate trap Download PDFInfo
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- CN100430577C CN100430577C CNB2005100884639A CN200510088463A CN100430577C CN 100430577 C CN100430577 C CN 100430577C CN B2005100884639 A CNB2005100884639 A CN B2005100884639A CN 200510088463 A CN200510088463 A CN 200510088463A CN 100430577 C CN100430577 C CN 100430577C
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- filter
- exhaust flow
- particulate trap
- mobile
- particulate
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Abstract
A particle collector comprises a plurality of filters which are configured to be capable of eliminating particles in an exhaust flow, and a device which is used to restrict the exhaust flow from passing through the filters.
Description
Technical field
The present invention relates generally to particulate trap, and relate more specifically to have the particulate trap of power of regeneration.
Background technique
Motor comprises the complex mixture that the technical known motor of diesel engine, petrol engine, natural gas engine and other may the exhausting air pollutant.Air pollutant are made up of gas and solid material, and they comprise particulate matter.Particulate matter can comprise unburned carbon granules, is also referred to as cigarette ash.
Because environment is strengthened noting, it is strict more that exhaust emitting substance standard becomes.Can regulate according to engine type, size of engine and/or motor rank from the particle number of motor emission.A kind of method that is discharged into particulate matter standard in the environment that meets that manufacturers of engines was once implemented is to adopt the device that is called particulate trap to remove particulate matter from the exhaust jet stream of motor.Particulate trap is a kind of filter, is designed to catch particulate matter, and is made of wire gaze.But, use particulate trap will cause particulate matter to pile up for a long time, thereby cause filter function and engine performance to descend at wire gaze.
A kind of method of improving the particulate trap performance is to realize regenerative process.For example, in being presented to the U.S. Patent No. 6,572,682 (' 682 patent) of Peter etc. on June 3rd, 2003, describe a kind of filtration system that cleans voluntarily and can from engine efflux, remove particulate matter.The filtration system design of ' 682 patents is used in diesel engine and is comprised the filter medium heap with a plurality of minutes filter cores.Exhaust flow is directed via gate valve by each minute filter core, so that remove particulate matter from exhaust flow.Heater be used for improving the branch filter core and the particulate matter temperature that is absorbed in to more than the combustion temperature of particulate matter, thereby the collected particulate matter of burning-off and make filtration system regeneration.
Though the filtration system of ' 682 patents can reduce the particulate matter that is discharged into environment and reduce the accumulation of particulate matter in filtration system, this filtration system is complicated and expensive.In addition, the bulky size of the filtration system of ' 682 patents can not with limited space compatibility in the engine compartment.
The present invention seeks to overcome one or more problem set forth above.
Summary of the invention
On the one hand, the present invention relates to a kind of particulate trap, comprise a plurality of filters and air distributor.Air distributor comprises the first-class moving part and the second mobile part.Each first and second mobile part has a plurality of openings so that exhaust flow flows to a plurality of filters.One of at least the first and second mobile parts are removable so that block exhaust flow flow to a plurality of filters at certain hour at least one selectively.
On the other hand, the present invention relates to a kind of method of from exhaust flow, removing particulate.This method includes selectively that direct exhaust flows at least one filter, and with at least one filter filter particulates from exhaust flow.This method also comprises flow at least one of parts of first and second of mobile air distributor, flows at least one filter at least one section so that block exhaust flow selectively.This method also includes and selectively at least one filter segment is applied electric current so that impel at least one filter segment regeneration.
The invention provides a kind of particulate trap, comprising: a plurality of filters are configured to eliminate particulate from exhaust flow; At least two mobile parts, each mobile part all has at least one opening, and at least one opening of described each mobile part is movably with respect to another mobile part, so that limit exhaust flow passes through a plurality of filters at least one selectively.
The present invention also provides a kind of method of eliminating particulate from exhaust flow, and this method comprises: direct exhaust flows at least one filter selectively; With at least one filter elimination particulate from exhaust flow; At least one of the first-class moving part of mobile air distributor and the second mobile part, so that limit at least one of a plurality of segmentations that exhaust flow passes at least one filter selectively, wherein said first-class moving part is at least partially disposed on described second and flows in the part; Controlledly at least one filter segment is applied electric current, so that impel at least one filter segment regeneration.
Description of drawings
Fig. 1 is the schematic illustration that has according to the motor of example embodiment particulate trap of the present invention;
Fig. 2 is the illustrative front view according to example embodiment particulate trap of the present invention;
Fig. 3 a is the illustrative top view according to another example embodiment particulate trap of the present invention;
Fig. 3 b is the illustrative front view according to another example embodiment particulate trap of the present invention;
Fig. 4 is the illustrative side view according to example embodiment particulate trap of the present invention;
Fig. 5 is according to the three-dimensional schematic illustration of pipe in the example embodiment particulate trap of the present invention;
Fig. 6 is according to example embodiment particulate trap illustrative top view sectional drawing of the present invention;
Fig. 7 is according to another example embodiment particulate trap illustrative top view sectional drawing of the present invention;
Fig. 8 a is another example embodiment schematic illustration of parts of the present invention;
Fig. 8 b is according to the filter perspective illustration of using in the example embodiment particulate trap of the present invention;
Fig. 8 c is according to the filter perspective illustration of using in another example embodiment particulate trap of the present invention; With
Fig. 9 is according to the filter perspective illustration of using in another example embodiment particulate trap of the present invention.
Embodiment
Fig. 1 illustrates the motor 10 of the example embodiment with particulate trap 12.Motor 10 can comprise the waste gas header 14 that makes particulate trap 12 imports 16 connect motor 10 exhaust flows.Controller 18 can be communicated with particulate trap 12 by connecting pipeline 20, and is communicated with motor 22 by pipeline 24.
Shown in Fig. 2 and 6, particulate trap 12 can comprise air distributor 26, runner pipe 32, one or more isolation spacer 28, one or more filter 30 and collector shell 34.
With reference to Fig. 2, air distributor comprise two its be shaped as in the pipe 36 and the mobile part of outer tube 38, respectively have circular cross-section.Outer tube 38 can comprise opening end 40, closed end 42 and pass through the single-row opening 46 of exterior cylindrical surfaces 48.In certain embodiments, opening is a general rectangular.Single-row opening 46 can be parallel with the axis 50 of outer tube 38.Opening 46 axis 50 relatively leaves filter 30 location, so that exhaust flow passes through filter 30 equably.In such layout, housing 34 can reboot exhaust flow between air distributor 26 and filter 30, so that disperse exhaust flow to pass through filter 30.Alternately, shown in Fig. 3 a and 3b, opening 46 can be towards filter 30, and another dispersal device, for example, baffle plate 51 can be used for disperseing exhaust flow to pass through filter 30.Interior pipe 36 can be arranged in the outer tube 38 rotatably, and opening end 52 and closed end 54 are also arranged.In pipe 36 be configured to rotate and outer tube 38 is maintained fixed motionless.Alternately, interior pipe 36 can keep motionless and outer tube 38 rotations, or all rotations simultaneously of inner and outer pipe 36,38.
As illustrated in Fig. 2,3a, 3b, 6 and 7, between interior pipe 36 and outer tube 38, can there be the gap.This gap allows that some air communication cross opening 46, even be in closed position when opening 46.Noun " obstruction " within the scope of the present invention, is interpreted as having air-flow to be limited at least in part.Consider that also when in closed position, opening 46 can limit air-flow fully.
Consider that also inner and outer pipe 36,38 can have the cross section that is different from circle.For example, the cross section can be long-round-shape, square or any sectional shape of allowing airflow.In addition, inner and outer pipe 36,38 can be configured to longitudinal sliding motion relative to each other.Opening 46 and 56 can have other shape that is different from rectangle.Opening can be long-round-shape, square, circular or any shape of allowing airflow.Also have, can not have single-row opening 46, but be included in the groove of outer tube 38, one of multiple row opening 56 in the pipe 36 in being configured to aim at.Keep motionless and situations outer tube 38 rotations at interior pipe 36, the post of opening 56 can be included in the outer tube 38, and the independent post of opening 46 is included in the pipe 36.
One or more separators 28 can be separated another filter 30 so that set up the filter subregion particulate trap 12 from a filter 30.The subregion of each filter 30 can be communicated with one or more openings 46 and one or more opening 74.But each filter 30 modularization is also changed independently.In addition, each filter 30 can comprise one or more filter segment 64.
Example embodiment as particulate trap 12 in Fig. 6 and 7 is illustrated, each filter segment 64 can be permanent minute filter core of filter 30, and comprise corrugation shape wire gaze medium 65, they are that insulating part 66 and 67 conduction and mutual and that add with housing 34 usefulness separates.Alternately, each filter segment 64 can comprise the idioelectric ceramic filter medium with conductive fiber.As Fig. 3 a, 6 and 7 illustrated, exhaust flow can laterally pass through corrugation shape wire gaze medium 65 from air distributor 26 guiding.Alternately, filter can rotate, and makes exhaust flow be directed longitudinally passing through wire gaze medium 65.Each filter segment 64 can be banked up into row, column and/or layer.Fig. 2, a kind of embodiment of 3 and 6 explanations, wherein filter segment 64 piles stratiform.But, filter 30 also can comprise multiple row, as illustrated in Fig. 7.Should be noted that particulate trap 12 can comprise the filter 30 of the filter segment 64 that has multiple row and multilayer.
Fig. 8 a illustrates exemplary alternative retaining member (86,88,90,92 and 94) of some, is used for piling up on a filter segment 64 another filter segment 64, and from a filter segment 64 isolated (insulation) another filter segment 64.In some concrete particulate traps, typically only adopt one type retaining member.Retaining member can adopt or not adopt conductive material to make.The retaining member of being made by conductive material can be with aluminum oxide coating layer or other suitable coated materials so that provide electric insulation between the wire gaze medium 65 of filter segment 64.Each retaining member can comprise bottom 80, first lateral parts 82 and second lateral parts 84.Another wire gaze medium 65 can be separated from a wire gaze medium 65 in bottom 80, and first and second lateral parts 82 and 84 can be used to make a filter segment 64 with respect to another filter segment 64 located lateral.
First retaining member 86 can be welded together to constitute and form one and has the parts of I-tee section basically by two U-shape metalwork.Two U-shape parts can so be arranged, two openings are faced one another and each clamping filter segment 64 separately.Second retaining member 88 can be made of independent metal folding part.Independent metal folding part can comprise the first and second identical edges that connected by same main folding part.Each first and second edge can comprise being bent to and engages the end at filter segment 64 edges separately, and main folding part is configured to engage the opposite side edge of two filter segment 64 that connect.The 3rd retaining member 90 can be made by having basically the metalwork of extruding of I-shape.Each end of I-shape is configured to engage the opposite side edge of two filter segment 64.The 4th retaining member 92 can be made of the foundry goods that also is I-shape basically, has at least one projection, is configured to partly engage with the corrugation of respective filter section 64, as the usefulness of location.The 5th retaining member 94 can the non-metal part of I-tee section constitutes by also having basically.Retaining member also can be dull and stereotyped (not shown).
Each retaining member can have smooth plat surface so that admit corrugation wire gaze medium 65, shown in Fig. 8 b.Selectively, the 5th retaining member 94 can comprise the surface with the image of wriggling, and is configured to cooperate the corrugation shape of wire gaze medium 65 shown in Fig. 8 c.
That Fig. 9 illustrates is constant by having, be essentially the 6th retaining member 96 that I-tee section serpentine shape constitutes.The 6th retaining member 96 can comprise the side part, is configured to cooperate, seals or curls enter in two filter segment 64.
Controller 18 (Fig. 1) can comprise all must parts so that operation particulate trap 12, for example storage, secondary storage device and processor.Controller 18 can connect various circuits, such as power circuit, signal processing circuit, electromagnetic coil driver circuit and other suitable circuit.
Motor 22 (Fig. 1) is connected to interior pipe 36, outer tube 38 or arrives inner and outer pipe 36,38 simultaneously, pipe 36 and/or outer tube 38 rotations in impelling.The pipe that is rotated can rotate or rotation in a step-wise fashion continuously.Motor 22 can electricly drive, Mechanical Driven, hydraulic driving or drive with known way in any industry.Pipe 36 in motor 22 can be directly connected to, or by ratchet unit, belt pulley system, gear train, or with known suitable fashion connection in any industry.
Also can consider, adopt different final controlling element without motor 22, such as hydraulic pressure installation, electromagnetic coil, piezoelectric device or other actuating device.Pipe 36 and/or outer tube 38 in different final controlling element can be connected to by ratchet mechanism, rack and pinion mechanism, screw and gear mechanism or in mode known in any industry.
The application's commercial Application possibility below will be described.
Disclosed particulate trap can be applicable to the device of any incendiary type, such as known devices in motor, boiler or any industry, wherein requires to remove particulate matter from exhaust flow.Particulate trap 12 allows that more uncomplicated, more cheap and compacter alternative device is used for minimizing and is discharged into environment particulate matter quantity.In addition, because disclosed particulate trap 12 does not need the valve member of centralization, particulate trap has high degree of flexibility in design.Specifically, the profile and the configuration of disclosed particulate trap 12 are not limited to division center, therefore can change into to adapt to various packaging environments.The operation of particulate trap 12 will be in following detailed description.
According to the example embodiment of particulate trap 12, exhaust flow can be crossed air distributor 26 guiding particulate traps 12, as illustrated in Fig. 2.Particulate trap 12 is also left by runner pipe 32 in the hole 46 of the bootable hole 56 by interior pipe 36 of exhaust flow, outer tube 38, filter 30.The air-flow that also can consider particulate trap 12 is reverse, promptly air-flow circulate pipe 32, flow through filter 30 and leave by interior pipe 36 and outer tube 38.
When exhaust flow was crossed filter 30, particulate matter can be removed from exhaust flow by the wire gaze medium 65 of filter segment 64.Along with the time goes over, particulate matter may be piled up on the wire gaze medium 65 of filter segment 64.If ignore, the accumulation of particulate matter may seriously arrive restriction or even block the degree of exhaust flow by wire gaze medium 65, the vent systems pressure of motor 10 is improved.The increase of motor 10 back pressures can reduce the ability that motor sucks fresh air, causes reducing performance, raising delivery temperature and the bad specific fuel consumption of motor 10.
Pile up for producing the undesirable particle material in preventing in particulate trap 12, can regenerate independently in concrete 30 other filter segment 64 of filter element.Regeneration can be periodic or according to trigger condition.Trigger condition can be, for example, and one engine running period, the pressure difference that particulate trap 12 two ends measure, or the known condition of any other industry.
Controller 18 can be configured to the regeneration that impels filter segment 64.When controller 18 decision needs regeneration (for example, when corresponding to a period of time of engine running during greater than predetermined value, maybe when crossing over pressure difference that particulate trap 12 measures gained greater than predetermined value), pipe 36 was with respect to outer tube 38 rotations in controller 18 can impel.When interior pipe 36 rotates in outer tube 38, a series of openings 56 will be aimed at single-row opening 46 and cross most of filter segment so that allow exhaust flow.But, one of opening 46 can be crossed at least one filter segment to prevent exhaust flow by interior pipe 36 obstructions at least.If be reverse exhaust flow, interior pipe 36 and outer tube 38 can rotate to allow that exhaust flow crosses most of filter segment and block exhaust flow at least and cross a filter segment.
When waste gas when one of filter segment gets clogged, controller 18 can be connected power supply to one of filter segment 64 of the filtration fraction that gets clogged at least by electrical cnnector 68 with 69.The electric current that comes from the power supply (not shown) can cause at least one filter segment 64 to be heated to more than the combustion temperature that is trapped in particulate matter the filter segment 64, thus the accumulation of burning-off particulate matter.
Obstruction can reduce the energy that need be used to regenerate from the exhaust flow of regeneration filter section 64, because exhaust flow is colder with respect to regeneration temperature, thereby may reduce phlegm and internal heat in regenerative process.Because each filter segment 64 at each filtration fraction can be regenerated respectively, to be used to the electric power amplitude of regenerating less at every turn.The low electric power tolerable that need be used to regenerate adopts the generating and the power circuit parts of low value.Because having each filtration fraction of the filter segment 64 that is in the regeneration is isolating with the filter segment of other filtration fraction in same particulate trap aspect the fluid basically, the waste gas that flows through the filter segment 64 of not regenerating in other filtration fraction does not influence need be used for regenerating isolates the amount of energy of the filter segment 64 of filtration fraction on fluid in addition.
Modular design involves the filter 30 that can change independently, and tolerable has flexibility in design and particulate trap 12 can low-costly be safeguarded.Specifically, because filter 30 is modular, particulate trap 12 can easily be changed into the difference restriction of satisfying various power-supply systems and filter requirement.In addition, because filter can be changed independently, restricted, damage or other out of use filter 30 is compared with changing whole particulate trap 12, can easily and individually change at lower cost.
For the skilled person, obviously can carry out various modification and variation and unlikelyly depart from scope of the present invention for disclosed particulate trap.After considering the present invention's specification disclosed here and concrete instance, obviously can produce other embodiment of the present invention for the skilled person.Therefore think this specification and example only as demonstration, and the real scope of the present invention should be specified for following claim and its equivalent.
Claims (10)
1. particulate trap comprises:
A plurality of filters are configured to eliminate particulate from exhaust flow; With
At least two mobile parts, each mobile part all has at least one opening, and at least one opening of described each mobile part is movably with respect to another mobile part, so that limit exhaust flow passes through a plurality of filters at least one selectively.
2. particulate trap as claimed in claim 1 is characterized in that, a plurality of filters respectively comprise a plurality of reproducible respectively filter segment and the circuit relevant with each a plurality of filter segment.
3. particulate trap as claimed in claim 2, it is characterized in that, also comprise controller with described at least two mobile parts and circuit communication, so that impel described at least two mobile parts to be movable relative to each other, thereby limit exhaust flow selectively, and at least one of response trigger condition and a plurality of filter segment of electrically regenerating by at least one of a plurality of filters.
4. particulate trap as claimed in claim 1 is characterized in that, also comprises the device that is used to actuate described at least two mobile parts.
5. particulate trap as claimed in claim 1 is characterized in that, one of described at least two mobile parts are the static mobile parts with a plurality of openings.
6. particulate trap as claimed in claim 1 is characterized in that, also comprises being used to disperse exhaust flow to pass the device of a plurality of filters.
7. method of from exhaust flow, eliminating particulate, this method comprises:
Direct exhaust flows at least one filter selectively;
With at least one filter elimination particulate from exhaust flow;
At least one of the first-class moving part of mobile air distributor and the second mobile part, so that limit at least one of a plurality of segmentations that exhaust flow passes at least one filter selectively, wherein said first-class moving part is at least partially disposed on described second and flows in the part; With
Controlledly at least one filter segment is applied electric current, so that impel at least one filter segment regeneration.
8. method as claimed in claim 7 is characterized in that, first-class moving part is first pipe and second part that flows is second pipe.
9. method as claimed in claim 8 is characterized in that, at least one that moves first and second pipes comprises at least one of interior pipe of rotation and outer tube, so that limit exhaust flow selectively by at least one filter.
10. method as claimed in claim 8 is characterized in that, at least one of mobile first and second pipes comprises rotates first and second pipes simultaneously, so that limit exhaust flow selectively by at least one filter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/902,483 | 2004-07-30 | ||
| US10/902,483 US7288137B2 (en) | 2003-12-24 | 2004-07-30 | Particulate trap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1727649A CN1727649A (en) | 2006-02-01 |
| CN100430577C true CN100430577C (en) | 2008-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100884639A Expired - Fee Related CN100430577C (en) | 2004-07-30 | 2005-07-28 | Particulate trap |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102016220423A1 (en) * | 2016-10-18 | 2018-04-19 | Hug Engineering Ag | Separator and method of operating a separator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2485428Y (en) * | 2001-05-24 | 2002-04-10 | 张庆辉 | Smoke filter of regenerative diesel engine |
| WO2003002854A1 (en) * | 2001-06-26 | 2003-01-09 | N.V. Bekaert S.A. | A method of desulfation of nox-adsorbers |
| US6572682B2 (en) * | 2001-06-26 | 2003-06-03 | Rypos, Inc. | Self-cleaning filter system using direct electrically heated sintered metal fiber filter media |
| CN1427142A (en) * | 2001-12-21 | 2003-07-02 | 中国人民解放军军事交通学院 | Diesel oil engine exhaust micro particle filtering body fuel gas heating regeneration method and equipment thereof |
| WO2003100226A1 (en) * | 2002-05-23 | 2003-12-04 | Renault S.A.S. | Device and method for filtering particle-loaded exhaust gases |
-
2005
- 2005-07-28 CN CNB2005100884639A patent/CN100430577C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2485428Y (en) * | 2001-05-24 | 2002-04-10 | 张庆辉 | Smoke filter of regenerative diesel engine |
| WO2003002854A1 (en) * | 2001-06-26 | 2003-01-09 | N.V. Bekaert S.A. | A method of desulfation of nox-adsorbers |
| US6572682B2 (en) * | 2001-06-26 | 2003-06-03 | Rypos, Inc. | Self-cleaning filter system using direct electrically heated sintered metal fiber filter media |
| CN1427142A (en) * | 2001-12-21 | 2003-07-02 | 中国人民解放军军事交通学院 | Diesel oil engine exhaust micro particle filtering body fuel gas heating regeneration method and equipment thereof |
| WO2003100226A1 (en) * | 2002-05-23 | 2003-12-04 | Renault S.A.S. | Device and method for filtering particle-loaded exhaust gases |
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| Publication number | Publication date |
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| CN1727649A (en) | 2006-02-01 |
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Granted publication date: 20081105 Termination date: 20160728 |