CN103790676A - Hybrid valve assembly for exhaust system - Google Patents
Hybrid valve assembly for exhaust system Download PDFInfo
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- CN103790676A CN103790676A CN201310532971.6A CN201310532971A CN103790676A CN 103790676 A CN103790676 A CN 103790676A CN 201310532971 A CN201310532971 A CN 201310532971A CN 103790676 A CN103790676 A CN 103790676A
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- Prior art keywords
- exhaust
- blade
- positi
- butterfly valve
- valve assembly
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
- F01N1/165—Silencing apparatus characterised by method of silencing by using movable parts for adjusting flow area
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1005—Details of the flap
- F02D9/1025—Details of the flap the rotation axis of the flap being off-set from the flap center axis
- F02D9/103—Details of the flap the rotation axis of the flap being off-set from the flap center axis the rotation axis being located at an edge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2007—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member specially adapted operating means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
- F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
- F16K15/1821—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for check valves with a hinged or pivoted closure member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/36—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an exhaust flap
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Exhaust Silencers (AREA)
Abstract
A hybrid valve assembly for an exhaust system is disclosed and has exhaust tube that consists of bore with exhaust flow path. The tube includes lower end that is connected to primary exhaust component and upper end that is connected to secondary exhaust component. A vane is mounted within bore and moveable between open position and closed position. A resilient element or spring biases the vane toward closed position. A valve actuator has ON position where movement of vane is actively controlled by valve actuator, and OFF position where movement of vane is passively controlled by exhaust gas flow. An independent claim is included for method of controlling hybrid valve assembly.
Description
Technical field
The present invention relates to the butterfly valve assembly in a kind of vehicle exhaust system, more specifically to a kind of by optionally providing passive valve function or active control function to expect the butterfly valve assembly of valve characteristic to provide.
Background technique
Vent systems has been widely known and has been widely used in internal-combustion engine.Conventionally, vent systems comprises outlet pipe, and these outlet pipes will be sent to other exhaust system component such as silencing apparatus, resonator etc. from the thermal exhaust of motor.Silencing apparatus comprises the sound chamber for eliminating the sound wave entrained by exhaust.Although silencing apparatus is that effectively it is conventionally relatively large aspect size, and the sound attenuation providing is limited.
Someone is proposed in silencing apparatus and comprises that valve is to provide extra sound attenuation.But proposed valve has many shortcomings, these drawbacks limit they being widely used in multiple application.
As known, silencing apparatus experiences different running environment according to application.For example, can be subjected to the exhaust of 600 degrees Celsius due to its common present position for the main muffler of passenger vehicle, and in truck, small-sized wagon or SUV(sport vehicle) silencing apparatus that uses in application can experience the gas that exceedes 750 degrees Celsius.
In passenger vehicle application, passive sound attenuation valve is directly combined in muffler body in order to sound attenuation to be provided.This valve comprises for bias voltage valve body so that it carries out the spring of pivot movement in the valve housing that limits exhaust flow path.The application of this spring in hot environment is limited.Conventionally need with very expensive special-purpose high temperature spring material.In addition, may be difficult to these air valve seals to be contained in the silencing apparatus of reduced size, the silencing apparatus of these reduced sizes is usually used as a part for many silencing apparatuss configuration of the large vehicle such as truck, SUV, small-sized wagon etc.
The extraction flow along this exhaust flow path in this valve control.Valve body can move between closed position and open position, and wherein, at closed position place, 100% of exhaust flow path is blocked by valve body, and in open position, the obstruction of this exhaust flow path is controlled in minimum.
In addition, these known passive valves are used in the configuration that is provided with bypass flow path.In this class configuration, be useful on main flow path and the bypass flow path of exhaust.This valve body is positioned in the inside hush tube that limits this main flow path.As mentioned above, this valve body configuration becomes to block when in this closed position 100% of this main flow path.By-pass pipe is communicated with inner hush tube fluid with the position in the downstream that is positioned at valve body in the position of the upstream that is positioned at valve body.Under certain conditions, for example, in the time that main flow path is blocked by 100%, exhaust is walked around this valve body via this by-pass pipe guiding.
From the angle of assembling, material and weight, it is disadvantageous that bypass fluid path is set.In addition, as mentioned above, be difficult to these air valve seals to be contained in less silencing apparatus, and these valves can not effectively move in hot environment.
In addition, these known passive valve configurations can not make low frequency noise decay effectively.Someone attempts need not passive valve, improves low frequency noise decay by increasing muffler volume or increasing back pressure.From the angle of expense, material and encapsulated space, it is disadvantageous increasing muffler volume.Increasing back pressure can negative effect engine power.
Also attempt using together with valve configuration ACTIVE CONTROL, vacuumizing without bypass configuration.But from the angle of expense and encapsulation, this is disadvantageous.
Therefore, have the demand to more efficiently sound attenuation valve, this sound attenuation valve effectively works in exhaust stream, and can make low frequency noise decay, so that the valve characteristic of expectation to be provided.The present invention has met these demands in having eliminated the shortcoming of prior art and inferior position.
Summary of the invention
A kind of butterfly valve assembly for vent systems comprises the outlet pipe with the hole that limits exhaust flow path.Blades installation is in this hole and can between open position and closed position, move.Resilient member is towards closed position bias voltage blade.Valve actuator has connection (ON) position and disconnection (OFF) position, in the time of this on positi, is controlled on one's own initiative the motion of blade by valve actuator, in the time of this off position, is controlled passively the motion of blade by exhaust stream.
In one example, exhaust flow path has transverse cross-sectional area and blade covers 87.5% to 92.5% of this transverse cross-sectional area time in the closed position.
In another example, actuator comprises the linear actuators such as solenoid.
In another example, in the time that valve actuator is in off position, blade only moves towards open position from closed position in response to the exhaust pressure of the biasing force that is greater than resilient member.
In another example, this assembly comprises an input, and this input can optionally be activated valve actuator is moved between on positi and off position by user.The valve characteristic of selection between on positi and off position based on expectation is provided carries out.
A kind of exemplary method of controlling butterfly valve assembly comprises optionally makes valve actuator move between on positi and off position, in the time of this on positi, controlled on one's own initiative the motion of blade by valve actuator, in the time of this off position, controlled passively the motion of blade by exhaust stream.
These features of the present invention and further feature can be understood best by following explanation and accompanying drawing, are below illustrated as concise and to the point description.
Accompanying drawing explanation
Fig. 1 shows in conjunction with the exhaust valve assembly of theme of the present invention and the stereogram of exhaust component.
Fig. 2 shows the schematic diagram of the air valve shaft, axle bush and the spring that use in assembly shown in Fig. 1.
Fig. 3 shows the sectional view of spring shown in Fig. 2.
Fig. 4 shows in roughly closed position and the roughly spring of open position and the schematic side view of blade.
Fig. 5 is the cross-sectional end view of outside outlet pipe and passive valve assembly, and wherein, blade is in closed position roughly.
Fig. 6 is silencing apparatus and the stereogram with the outside outlet pipe of passive valve assembly.
Fig. 7 is the stereogram of butterfly valve assembly.
Fig. 8 is the end elevation of the butterfly valve assembly shown in Fig. 7.
Fig. 9 is the side view of the butterfly valve assembly shown in Fig. 7.
Figure 10 is the plan view of the butterfly valve assembly shown in Fig. 7.
Embodiment
Exhaust component 10(Fig. 1) comprise the exhaust valve that can move between open position and closed position, this exhaust valve is denoted as passive valve assembly 12.In the example shown, this exhaust component 10 comprises body 14, and this body 14 defines the exhaust flow path 16 with certain transverse cross-sectional area.Passive valve assembly 12 comprises valve body or blade 18, and this valve body or blade 18 block a part for this exhaust flow path 16 when time in the closed position.Blade 18 is in response to be applied to pressure on blade 18 by exhaust and towards open position pivotable, so that the obstruction of exhaust flow path 16 is minimized.
In one example, blade 18 utilizes tang or bracket 22 to be fixed to axle 20.In the outer surface of body 14, form groove 24.The housing 26 that shown in this example is square-shaped metal structure is contained in this groove 24 and is soldered to body 14.Also can use other housing configuration.Axle 20 can be rotated to support in housing 26 by the first axle bush or bearing 28 and the second axle bush or bearing 30.In the example shown, bracket 22 comprises piece of metal sheet, and a part for this tinsel is soldered to axle 20 and another part stretches out and is soldered to blade 18 from housing 26.Therefore, blade 18 and axle 20 are around pivotable together with the axis A being limited by axle 20.Bracket 22 is only an example that how axle 20 can be attached to blade 18, is to be understood that, also can use other attachment means.
The first axle bush 28 is roughly positioned the first axle head 32 places.As shown in Figure 2, the first axle bush 28 comprises the seal joints for the first axle head 32.Axle 20 comprises the axis body 34 being limited by the first diameter D1.Be positioned near the first axle head 32 is first axle collar 36 being limited by the Second bobbin diameter D2 that is greater than the first diameter D1.The first axle bush 28 comprises the first hole 38 that holds the first axle head 32.First axle collar 36 is directly resisted against on the end face 40 of the first axle bush 28, and exhaust can not be let out from the first axle bush 28 along the path between axle 20 and the first axle bush 28.
The second axle bush 30 comprises the second hole 44, and axis body 34 extends to the second axle head 46 through this second hole 44.Axle 20 comprises second axle collar 48 being limited by the 3rd diameter D3 that is greater than the first diameter D1.Second bobbin diameter D2 and the 3rd diameter D3 can be same to each other or different to each other.Second axle collar 48 is positioned at the axial inner side of the second axle bush 30.
In one example, spring 50 comprises helical spring, and this helical spring is configured on the axial direction of axis A, be compressed when mounted, and is also compressed on the torsional direction around axis A.Reverse loading and make it produce preload force, this preload force is towards closed position bias voltage axle 20 and blade 18.Along with air-flow increases, this warping force is overcome so that blade 18 moves towards open position.Axial force is for positively settling second axle collar 48 and seal the end face 66 that leans against the second axle bush 30.This prevents that by the passage closing between the outer surface of axle 20 and the hole surface of the second axle bush 30 any exhaust from letting out from the second axle bush 30.Thus, axial loading is provided and reverses with single spring to load, thereby obtained in the operating position that passive valve assembly 12 can be remained on to expectation and prevented the configuration of exhaust gas leakage.
In Fig. 3, show in more detail this spring 50.Spring 50 is served as reasons and is had the helical spring that the wire rod of diameter Dw is made.Before installing, the free length condition FL that spring 50 is greater than diameter Dw by the first pitch dimension P1 limits.This relation makes to form between adjacent windings gap 70.Gap 70 between adjacent windings make spring 70 can be during installation pressurized and being compressed on torsional direction in the axial direction.This just makes the second pitch dimension P2 be less than first pitch dimension P1(Fig. 1).
In an exemplary configurations, spring 50 has the first pitch dimension P1 that is about the gauge or diameter of wire Dw of 1.8mm and is greater than 2mm.Spring 50 also has the full external diameter of 17mm and the free length FL of about 30mm.In the time of compressed installation, this free length FL is pressed short about 5mm.Should be understood that, this is only a kind of exemplary configurations, can use as required other configuration so that the characteristic of expectation to be provided.
Not only can but also can, at the single spring axially working, can load so that it leans against on axle bush axle at torsional direction by utilizing, this will minimize the exhaust gas leakage amount between axle and axle bush.In addition,, because axle is always oriented to guarantee to lean against on axle bush, therefore can utilize this configuration so that the variation of accumulation minimizes.
With in the time closing, have 50% or the existing valve of less coverage scale compared with, passive valve assembly 12 also provides the sizable coverage scale to exhaust flow path 16 in the time being arranged in closed position.In the example shown in Fig. 4 to Fig. 5, passive valve assembly 12 is positioned in outlet pipe 80, and this outlet pipe 80 has the first pipe end 82 that is connected to the first exhaust component 84 and the second pipe end 86 that is connected to the second exhaust component 88.The first exhaust component 84 and the second exhaust component 88 can comprise the parts such as silencing apparatus, tailpipe etc.
In an example shown in Fig. 6, the first exhaust component 84 comprises silencing apparatus 90, and the second exhaust component 88 comprises tailpipe 92.Outlet pipe 80 is connected to the air outlet 94 of silencing apparatus 90 and the suction port of tailpipe 92.In another example, first component 84 and second component 88 include silencing apparatus (schematically illustrated in Fig. 4), and wherein, outlet pipe 80 is connected to the air outlet of a silencing apparatus and is connected to the suction port of another silencing apparatus.
In arbitrary configuration, outlet pipe 80 all has internal holes or opening 98, and this internal holes or opening 98 fluidly connect the first exhaust component 84 and the second exhaust component 88 and limit exhaust flow path 16.This exhaust flow path 16 is the unique flow paths between the first exhaust component 84 and the second exhaust component 88.In other words, do not have the bypass flow path being associated with outlet pipe 80, unique path that exhaust stream can pass through is the exhaust flow path 16 in outlet pipe 80.
As shown in Figure 4, blade 18 can be switched to the position (dotted line) of roughly opening from the position (solid line) of roughly closing in opening 98.Blade 18 is schematically illustrated by spring 50() towards as the 100 schematic closed position bias voltages of indication.In the time that the exhaust pressure of being indicated by arrow 101 exceedes certain level, spring force is overcome and makes blade 18 to move towards open position.
Opening 98 is limited by transverse cross-sectional area.In the time that blade 18 is in the closed position, this transverse cross-sectional area coating covers, is closed about 80%-97%.In one example, the coating in the scope of 87.5%-92.5% of this transverse cross-sectional area covers.Thus, in the time that blade 18 is in the closed position, an only very little part for this transverse cross-sectional area is that exhaust stream stays open (referring to Fig. 5).
With combine without bypass configuration, this high percentaeg that covers provides a kind of to the low frequency noise very effective method that decays.
Fig. 7 to Figure 10 shows a kind of example of butterfly valve assembly 102, and this butterfly valve assembly 102 combines Passive Control as above and the ACTIVE CONTROL that can be selectively driven to provide the valve characteristic of expectation.As shown in Figure 7, butterfly valve assembly 102 is to be arranged in outlet pipe 104 with the similar mode of aforesaid way; But, also can use other that configuration is installed.Pipe 104 has central axial line B and defines an exhaust flow path.Axle 106(Fig. 8) supported by the axle bush assembly 108 being fixed on the relative both sides of managing 104.Blade 110(Fig. 8) be fixed to together with axle 104 and rotate around spin axis A.
In one example, pipe 104 defines the transverse cross-sectional area that exhaust stream F passes to downstream 114 from upstream extremity 112.Pipe 104 comprise have exhaust pathway without bypass configuration, this exhaust pathway comprises and is being connected to the upstream exhaust component of upstream extremity 112 and is being connected to the unique exhaust pathway between the downstream exhaust gas parts of downstream 114.In the time that blade 110 is in the closed position, this transverse cross-sectional area is covered about 80%-97% by blade 110.In another example, the scope coating of the 87.5%-92.5% of this transverse cross-sectional area covers.Thus, in the time that blade 110 is in the closed position, an only very little part for this transverse cross-sectional area stays open (referring to Fig. 8) to exhaust stream.
Butterfly valve assembly 102 comprises the elasticity control unit 120 that blade 110 is biased into closed position.This elasticity control unit 120 comprises the resilient member 122 such as spring, and this resilient member 122 applies the biasing force moving it to closed position to blade 110.This elasticity control unit 120 also comprises the guard ring 124 that resilient member 122 is attached to axle 106.Guard ring 124 comprises and is fixed with the first portion 126 of rotating together with one end of axle 106 and is fixed to the second portion 128 of the external casing of an axle bush assembly in pipe 104 and/or multiple axle bush assembly 108.As shown in Figure 7, the first spring end 130 is placed in the first portion 126 of spring retainer 124, and the second spring end 132 is placed in the second portion 128 of spring retainer 124.
Butterfly valve assembly 102 also comprises the valve actuator 140 that is configured to control on one's own initiative blade 110 positions.Can use the active valve actuator 140 of any type including for example pneumatic control actuator or electronic control actuator.In one example, this actuator comprises the linear actuators such as solenoid.
Install in configuration an example, valve actuator 140 comprises the housing 142 that is fixed to pipe 104 with bracket 144.Housing 142 is that install outside and roughly in the direction parallel with the direction of exhaust flow path, extends.Valve actuator 140 comprises extending member 146, and this extending member 146 extends along linear path to the inside of housing 142 and to the outside of housing 142, to control the position of blade 110.Arm 148 stretches out to be connected this elasticity control unit 120 from this extending member 146.In one example, arm 148 with the direction of spin axis A almost parallel on extend.
Valve actuator 140 has on positi and off position, on positi, controls on one's own initiative the motion of blade 110 by valve actuator 140, in off position, controls passively the motion of blade 110 by exhaust stream.When valve actuator 140 is during at off-position, butterfly valve assembly 102 is in passive mode, and resilient member 122 applies with so that the biasing force that axle 106 rotates makes blade 110 in the closed position.During vehicle operating, in the time being applied to exhaust pressure on blade 110 and being greater than the biasing force of resilient member 122, blade 110 will move towards open position.In the time that exhaust pressure is less than biasing force, the biasing force due to resilient member 122 is automatically back to closed position by blade 110.Thus, when in passive mode, blade 110 only moves towards open position from closed position in response to the exhaust pressure of the biasing force that is greater than resilient member 122, and valve actuator 140 is not controlled the motion of blade 110 on one's own initiative.
The first portion 126 of guard ring 124 comprises radially the teat 150 extending, and in the closed position when middle when valve actuator 140, the teat 150 that this radially extends is resisted against on the arm 148 of valve actuator 140.In passive mode, in the time that exhaust pressure exceedes the biasing force of resilient member 122, teat 150 lifts and leaves arm 148 edges by rotating towards open position shown in arrow 152.In the time that exhaust pressure drops to lower than biasing force, the first portion 126 of teat 150, axle 160 and guard ring 124 is by the direction rotation along contrary, until teat 150 is resisted against on arm 148.Thus, when in passive mode, arm 148 is the stop boundaries that limit closed position.
During ACTIVE CONTROL, when actuator 140 is in the time that on positi has the initiative pattern, arm 148 together with extending member 146 mobile come running shaft 106, and by with teat 150 contact rotation blade 110.As shown in Figure 7, in the time that extending member 146 is inwardly moved in housing 142, arm 148 also moves along identical direction, this force teat 150 no matter exhaust pressure how all antagonistic spring biasing force and indicated by arrow 152 around axis A() rotation.Thus, when in the pattern of having the initiative, at extending member 146, to the inside of housing 144 and outside when mobile, arm 148 all keeps contacting with each other with teat 150.
Controller 156 such as independent or integrated electronic control unit produces the signal of the motion of controlling valve actuator 140.Input 158 is configured to optionally be driven so that valve actuator 140 moves between on positi and off position by user.The valve characteristic of selection between on positi and off position based on expectation is provided carries out.Signal from input 158 is transferred into controller 156, and controller 156 is according to producing suitable output control signal in order to start (on positi) or (off position) valve actuator 140 of stopping using from inputting 158 signals that receive.Can start in motion this input 158 or can be before vehicle launch or start this input 158 when vehicle launch.
Input 158 can comprise can be in the time that controlling value need to change and method or the device of any kind of communicating of controller 156.In one example, input 158 comprises switch, button or the switch that can optionally be driven by user.Input 158 can also be by being realized by touch screen such as vehicle computer.In another example, accelerator pedal can be used as input device, and in this input device, the predetermined set position applying in shorter time period inside brake or predetermined number can represent to change valve control.Change request once controller 156 receives, controller 156 just utilizes algorithm to be programmed to produce the suitable control signal for valve actuator 140.
As mentioned above, the valve characteristic of the selection between on positi and off position based on expectation is provided carries out.In one example, the valve characteristic of expectation comprises the exhaust noise of expectation.When selecting when on positi, when butterfly valve assembly 102 has the initiative pattern, exhaust noise compares when in off position, large in the time of passive mode.
In another example, the valve characteristic of expectation comprises the back pressure of expectation.When on positi, in the pattern that has the initiative time, little than when in off position, in the time of passive mode of back pressure.
In another example, the valve characteristic of expectation comprises energy conservation.User will select on positi while using the expectation of the energy existing, and will select off position when the expectation that has energy saving.
Butterfly valve assembly 102 combines Passive Control in easy and simple mode with ACTIVE CONTROL, the range of choice of valve characteristic option is provided.
Although disclose the preferred embodiment of the present invention, those skilled in the art should be realized that, some remodeling also falls within the scope of the present invention.For this reason, exact range of the present invention and content should be by determining claim.
Claims (20)
1. for a butterfly valve assembly for vent systems, comprising:
Outlet pipe, described outlet pipe has the hole that limits exhaust flow path, and described outlet pipe has an end that is connected to the first exhaust component and the second end that is connected to the second exhaust component;
Blade, described blades installation, in described hole, and can move between open position and closed position;
Resilient member, described resilient member is towards blade described in described closed position bias voltage; And
Valve actuator, described valve actuator has on positi and off position, and in the time of described on positi place, the motion of described blade is controlled on one's own initiative by described valve actuator, and in the time of described off position, the motion of described blade is controlled passively by exhaust stream.
2. butterfly valve assembly according to claim 1, wherein, described blade when in described closed position, cover described exhaust flow path transverse cross-sectional area 80% to 97%.
3. butterfly valve assembly according to claim 1, wherein, when described valve actuator is during in described off position, described blade, only in response to the exhaust pressure that is greater than described resilient member biasing force, moves towards described open position from described closed position.
4. butterfly valve assembly according to claim 1, wherein, described outlet pipe has formed the unique exhaust pathway extending between described the first exhaust component and described the second exhaust component, and described blade comprises the unique valve assembly being positioned between described the first exhaust component and described the second exhaust component.
5. butterfly valve assembly according to claim 1, wherein, at least one in described the first exhaust component and described the second exhaust component comprises silencing apparatus.
6. butterfly valve assembly according to claim 5, wherein, the another one in described the first exhaust component and described the second exhaust component comprises the one in tailpipe and another silencing apparatus.
7. butterfly valve assembly according to claim 1, comprising: be mounted to the axle of described blade, described axle is pivotally supported by least one axle bush, and wherein, described resilient member comprises the spring being bearing on described axle.
8. butterfly valve assembly according to claim 7, comprise: spring retainer, described spring retainer has be fixed to the rotating part rotating together with described axle, and wherein, described valve actuator is configured to assign to control by rotating described rotary part during in described on positi when described valve actuator the motion of described blade.
9. butterfly valve assembly according to claim 8, wherein, described spring retainer comprises radially the teat extending, and wherein, described valve actuator comprises the arm on the teat radially extending described in being resisted against.
10. butterfly valve assembly according to claim 9, wherein, when described valve actuator is during in described off position, described arm comprises the butt retainer that limits closed position, and wherein, when described valve actuator is during in described on positi, on the teat radially extending described in described arm is resisted against, and the teat rotation of radially extending described in making so that described blade move towards described open position.
11. butterfly valve assemblies according to claim 8, wherein, described arm is along extending with the axial direction of the spin axis almost parallel by described axis limit.
12. butterfly valve assemblies according to claim 11, wherein, described actuator comprises the linear actuators with extending member, and wherein, described arm is fixed to for moving together with described extending member.
13. butterfly valve assemblies according to claim 1, comprise input, described input is configured to optionally to be driven so that described valve actuator moves between described on positi and described off position by user, and wherein, the valve characteristic of the selection between described on positi and described off position based on expectation is provided carries out.
14. butterfly valve assemblies according to claim 13, wherein, the valve characteristic of described expectation comprises the exhaust noise of expectation, and wherein, when in described on positi, described exhaust noise is larger than the exhaust noise in the time of described off position.
15. butterfly valve assemblies according to claim 13, wherein, the valve characteristic of described expectation comprises the back pressure of expectation, and wherein, when in described on positi, described back pressure is less than the back pressure in the time of described off position.
16. butterfly valve assemblies according to claim 1, wherein, described exhaust flow path has a transverse cross-sectional area, and wherein, described blade covers 80% to 97% of described transverse cross-sectional area when in described closed position.
Control the method for butterfly valve assembly, comprise the following steps: for 17. 1 kinds
Outlet pipe, blade and resilient member are provided, wherein, described outlet pipe has the hole that limits exhaust flow path, and described blades installation also can move in described hole between open position and closed position, described resilient member is towards blade described in described closed position bias voltage, and
Optionally make valve actuator move between on positi and off position, wherein, at described on positi place, the motion of described blade is controlled on one's own initiative by described valve actuator, at described off position place, the motion of described blade is controlled passively by exhaust stream.
18. methods according to claim 17, wherein, described exhaust flow path has transverse cross-sectional area, and described method is included in described blade in the time of described closed position, utilizes described blade to cover 80% to 97% coverage area of described transverse cross-sectional area.
19. methods according to claim 17, wherein, the exhaust noise of selection between described on positi and described off position based on expectation is provided carries out, and described method comprises and selects described on positi to provide than exhaust noise large when the described off position.
20. methods according to claim 17, wherein, the back pressure of selection between described on positi and described off position based on expectation is provided carried out, and described method comprises and selects described on positi to provide than back pressure little when the described off position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/664,467 US9376947B2 (en) | 2007-03-29 | 2012-10-31 | Hybrid valve for attenuation of low frequency noise |
| US13/664,467 | 2012-10-31 |
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| Publication Number | Publication Date |
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| CN103790676A true CN103790676A (en) | 2014-05-14 |
| CN103790676B CN103790676B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310532971.6A Active CN103790676B (en) | 2012-10-31 | 2013-10-31 | Hybrid valve assembly for exhaust system |
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| Country | Link |
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| CN (1) | CN103790676B (en) |
| DE (1) | DE102013111003B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107835895A (en) * | 2015-09-11 | 2018-03-23 | 相泽自动汽车有限公司 | Pressure at expulsion control valve |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015122036A1 (en) * | 2015-12-16 | 2017-06-22 | Fischer Rohrtechnik Gmbh | Throttle valve arrangement for an exhaust line or a supply air line of an internal combustion engine |
| FR3049673B1 (en) | 2016-03-30 | 2018-11-23 | Faurecia Systemes D'echappement | EXHAUST LINE VALVE AND CORRESPONDING MOUNTING METHOD |
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- 2013-10-04 DE DE102013111003.7A patent/DE102013111003B4/en not_active Expired - Fee Related
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| US5189266A (en) * | 1989-06-09 | 1993-02-23 | Nissan Motor Co., Ltd. | Vehicular exhaust resonance suppression system and sensing means therefore |
| DE19957711B4 (en) * | 1999-10-21 | 2011-08-18 | Honda Giken Kogyo K.K. | Muffler valve device |
| CN1530523A (en) * | 2003-03-14 | 2004-09-22 | 海因里希・吉勒特有限责任公司 | Silencer with variable damp characteristics |
| US7374147B2 (en) * | 2005-10-14 | 2008-05-20 | Et Us Holdings Llc | Valve assembly with overstroke device and associated method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103790676B (en) | 2017-04-12 |
| DE102013111003A1 (en) | 2014-04-30 |
| DE102013111003B4 (en) | 2022-06-15 |
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