WO2012030222A1 - Échappement, logement de soupape, véhicule automobile, et procédé de montage - Google Patents

Échappement, logement de soupape, véhicule automobile, et procédé de montage Download PDF

Info

Publication number
WO2012030222A1
WO2012030222A1 PCT/NL2011/050599 NL2011050599W WO2012030222A1 WO 2012030222 A1 WO2012030222 A1 WO 2012030222A1 NL 2011050599 W NL2011050599 W NL 2011050599W WO 2012030222 A1 WO2012030222 A1 WO 2012030222A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
exhaust
axle
tube
housing
Prior art date
Application number
PCT/NL2011/050599
Other languages
English (en)
Inventor
Frank Johan Hubert Nottelman
Original Assignee
The Jekill & Hyde Company B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from NL2005304A external-priority patent/NL2005304C2/en
Priority claimed from DE202010012100U external-priority patent/DE202010012100U1/de
Application filed by The Jekill & Hyde Company B.V. filed Critical The Jekill & Hyde Company B.V.
Publication of WO2012030222A1 publication Critical patent/WO2012030222A1/fr

Links

Classifications

    • 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
    • F01N1/166—Silencing apparatus characterised by method of silencing by using movable parts for changing gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe
    • 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
    • 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
    • F02D9/101—Special flap shapes, ribs, bores or the like
    • F02D9/1015—Details of the edge of the flap, e.g. for lowering flow noise or improving flow sealing in closed flap position
    • 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
    • F02D9/1035—Details of the valve housing
    • F02D9/104—Shaping of the flow path in the vicinity of the flap, e.g. having inserts in the housing
    • F02D9/1045—Shaping of the flow path in the vicinity of the flap, e.g. having inserts in the housing for sealing of the flow in closed flap position, e.g. the housing forming a valve seat
    • 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
    • F02D9/1035—Details of the valve housing
    • F02D9/106—Sealing of the valve shaft in the housing, e.g. details of the bearings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/02—Sliding-contact bearings
    • F16C23/04—Sliding-contact bearings self-adjusting
    • F16C23/043—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings
    • F16C23/045—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings for radial load mainly, e.g. radial spherical plain bearings
    • 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
    • F16K1/22—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 crossing the valve member, e.g. butterfly valves
    • F16K1/224—Details of bearings for the axis of rotation
    • 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
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
    • 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
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled

Definitions

  • the invention relates to an exhaust for an engine of a motorized vehicle, such as a motorcycle or a car, which exhaust comprises a first exhaust tube, a second exhaust tube, and a muffler provided within the first exhaust tube, wherein the muffler and the second exhaust tube define different flow paths for gases that, in use, flow through the exhaust, the exhaust being provided with a butterfly valve being arranged for substantially sealing off the flow path defined by the second exhaust tube and having a valve axle and a valve plate.
  • the invention also relates to a valve housing arranged for use in an exhaust for a motorized vehicle, such as a motorcycle or a car.
  • the invention also relates to a motorized vehicle, such as a motorcycle or a car.
  • the invention further relates to a method of mounting a butterfly valve in an exhaust for a motorized vehicle, such as a motorcycle or a car.
  • An exhaust of the type that is described above is known from WO 97/40264. Therein an exhaust is described having an outer tube and an inner tube provided within the outer tube. A butterfly valve is provided within the inner tube. A muffler is provided in between the inner and outer tube.
  • a relatively loud undisturbed engine sound can be heard by a user of the motorized vehicle.
  • the known exhaust thus enables the user of the motorized vehicle to switch between a first state wherein a power of the engine is relatively high and a relatively loud and undisturbed sound is produced, and a second state wherein the power of the engine is somewhat decreased and the sound of the engine is disturbed and muffled.
  • Such an exhaust is highly beneficial because advantages of both states can be enjoyed by the user dependent on the circumstances wherein the motorized vehicle is used. For example, on a public road the second state can be used. As another example, on race circuits, closed area's e.g. dedicated to biker meetings, or other places where the relatively loud sound is allowed, the first state can be used so that the user may enjoy the undisturbed sound of the engine.
  • the butterfly valve is normally mounted in the following way. First, a hole is provided in the outer tube and the inner tube so that the valve axle can be mounted from outside the exhaust. After the axle is mounted through the hole, the valve plate is brought towards the axle through the inner and/or outer tube. Then, the valve plate is attached to the valve axle, for example by welding or by means of a screw. After mounting the axle projects outside the outer tube so that is can be actuated from the outside.
  • an exhaust for an engine of a motorized vehicle such as a motorcycle or a car, which exhaust comprises a first exhaust tube, a second exhaust tube, and a muffler provided within the first exhaust tube, wherein the muffler and the second exhaust tube define different flow paths for gases that, in use, flow through the exhaust, the exhaust being provided with a butterfly valve being arranged for substantially sealing off the flow path defined by the second exhaust tube and having a valve axle and a valve plate, characterised in that the exhaust is further provided with a valve housing having the butterfly valve mounted therein and comprising a bearing arrangement that bears the valve axle with axial expansion space with respect to the valve housing in an axial direction of the valve axle, the valve housing further comprising a seat that is shaped for receiving at least part of a circumferential portion of the valve plate so that the valve plate can substantially seal off the flow path defined by the second exhaust tube with radial expansion space with respect to the valve housing in a radial direction of the valve plate, the axial and radial expansion
  • valve housing enable mounting of the butterfly valve in the valve housing externally of the exhaust, because, afterwards, the housing with the butterfly valve can still be mounted in the first exhaust tube, the second exhaust tube, and/or in between the first and second tube segments of the second exhaust tube.
  • a mounting tolerance of the butterfly valve can be better controlled.
  • regulations on sound emission can be better met.
  • relatively high temperatures and temperature gradients may exist. The inventor realised that, during start-up of the engine, a temperature in an inner part of the exhaust may rise relatively quickly, while a temperature in the outer part of the exhaust is still relatively low. The heat generated by the engine may cause the butterfly valve to reach a temperature of, for example, over 500 degrees Celsius.
  • inner parts of the exhaust e.g. the butterfly valve
  • outer parts of the exhaust e.g. the first and/or second exhaust tube
  • the butterfly valve may get jammed in the valve housing.
  • the expansion space i.e. the axial expansion space and the radial expansion space
  • the expansion space is required between the valve plate respectively the valve axle of the butterfly valve on the one hand, and the valve housing on the other hand, to prevent that the butterfly valve gets jammed in the valve housing.
  • there is a danger that such expansion space allows sound waves to pass the butterfly valve. This danger is important in view of modern regulations on sound emission by exhausts containing the relatively strict norms.
  • valve plate By means of the seat, such passing of sound waves may be largely prevented while the axial and radial expansion space can be allowed.
  • the valve plate With the valve plate in a closed position, the valve plate may substantially seal off the flow path defined by the second exhaust tube, e.g. substantially seal off the second exhaust tube, by a substantially closing contact of the valve plate on the seat.
  • a diameter of the valve plate may be smaller than a diameter of second exhaust tube.
  • externally mounting the butterfly valve in the housing is beneficial. Furthermore, externally mounting the butterfly valve in the housing enables to accurately position the valve axle with respect to the valve seat. Hence, in practice, externally mounting the butterfly valve in the valve housing significantly enhances reliability and quality of the sealing off of the flow path defined by the second exhaust tube.
  • the axial expansion space is at least 0.1 millimeter, at least 0.2 millimeter, at least 0.3 millimeter, at least 0.6 millimeter, at least 0.9 millimeter, at least 1.2 millimeter, or at least 1.5 millimeter.
  • the axial expansion space preferably is at most 2 millimeter, at most 4 millimeter, or at most 6 millimeter.
  • the axial expansion space may be adjusted to a length of the valve axle, e.g. in between axle stubs, and/or to a diameter of the valve plate in between bearings of the bearing arrangement. Said length and/or said diameter may be in a range from 1.5 to 10 centimeter, e.g.
  • the axial expansion space is in a range from 0.4 % to 10%, more preferably from 0.7% to 5%, e.g. from 1% to 3% or from 1.2% to 2.7%, of the length of the valve axle and/or of the diameter of the valve plate in between bearings of the bearing arrangement.
  • the radial expansion space is, at a position along the circumferential portion of the valve plate, at least 0.2 millimeter, at least 0.4 millimeter, at least 0.7 millimeter, at least 1.1 millimeter, at least 1.7 millimeter, at least 2.3 millimeter or at least 3 millimeter.
  • the radial expansion space preferably is, at a position along the circumferential portion of the valve plate, at most 3 millimeter, at most 6 millimeter, or at most 10 millimeter.
  • the radial expansion space may be adjusted to a diameter of the valve plate, e.g. measured in a direction transverse to a longitudinal direction of the valve axle.
  • Said diameter optionally is in a range from 1.5 to 10 centimeter, e.g. approximately 2 centimeter, approximately 3 centimeter, approximately 5 centimeter, approximately 7.5 centimeter, e.g. approximately 3 inch, or approximately 10 centimeter. Other values of said diameter are also possible.
  • the radial expansion space is in a range from 1% to 10%, more preferably from 1.5% to 5%, e.g. from 2% to 3.5% or from 2.3% to 3.2%, of the diameter of the valve plate.
  • valve housing and the valve axle are dimensioned to fit, in use, inside the first and/or the second exhaust tube with the butterfly valve mounted in the valve housing, and/or wherein the second exhaust tube comprises a first tube segment and a second tube segment and the valve housing is dimensioned to fit in between the first and second tube segment.
  • the valve plate may e.g. be dimensioned to fit inside the second and/or the first exhaust tube.
  • the valve axle may e.g. be dimensioned to fit inside the first exhaust tube when oriented perpendicular to a length direction of the first exhaust tube and/or the valve axle may be dimensioned to fit inside the second exhaust tube when oriented perpendicular to a length direction of the second exhaust tube.
  • the valve housing comprises a first housing segment and a second housing segment, said segments preferably forming separable parts of the bearing arrangement.
  • the valve housing comprises at least two mutually separable housing parts, e.g. the first housing segment, i.e. a first housing part, and the second housing segment, i.e. a second housing part.
  • the first and second housing segment may facilitate mounting the butterfly valve in the valve housing.
  • the valve axle may first be positioned in the first housing segment. Subsequently, a position, the axial expansion space, and/or the radial clearance of the valve axle may be fixed by attaching the second housing segment to the first housing segment.
  • a part of the valve axle may be surrounded and enclosed by the first and second housing segment after the first and second housing segment are attached to each other.
  • the first and second housing segment are especially advantageous when the valve axle and the valve plate comprise one and the same material, preferably substantially consist of one and the same material, more preferably substantially consist of one piece of the one and the same material. In that situation, mounting the butterfly valve in the valve housing would otherwise be problematic.
  • the first and second housing segment may, optionally, be mutually substantially symmetrical.
  • the first and second housing segment may, optionally, both be shaped as a ring.
  • the first exhaust tube forms an outer tube and the second exhaust tube forms an inner tube provided within the outer tube, wherein the muffler is provided in between the inner and outer tube, the valve housing and the valve axle further being dimensioned to fit, in use, inside the first exhaust tube with the butterfly valve mounted in the valve housing.
  • the second exhaust tube is separate from, e.g. outside, the second exhaust tube, the valve housing and the valve axle being dimensioned to fit, in use, inside the second exhaust tube with the butterfly valve mounted in the valve housing.
  • the valve housing is attached to the second exhaust tube.
  • the first exhaust tube may optionally be parallel with the second exhaust tube.
  • the valve housing is attached to the second exhaust tube.
  • the valve housing is attached to the second exhaust tube in between the first and second tube segment.
  • the valve housing may be provided with a connection structure for receiving the first and/or the second tube segment, and/or for attaching thereto the first and/or the second tube segment.
  • the connection structure may comprise e.g. at least one connection recess for receiving the first and/or the second tube segment, e.g. at least one connection notch.
  • the connection structure may comprise a connection ridge.
  • the first housing segment and the second housing are provided with the connection structure.
  • an assembly comprising the first tube segment, the second tube segment, the valve housing with the butterfly valve mounted therein, and optionally the muffler, can be provided.
  • Such an assembly may, optionally, be inserted into the first exhaust tube.
  • a convenient way of mounting the butterfly valve in the exhaust may be enabled.
  • the second exhaust tube may be provided with a stop inside the second exhaust tube for placing the valve housing there against.
  • valve housing is shaped as a ring around the valve plate.
  • the radial expansion space between the valve plate and the housing around substantially the whole valve plate can be arranged with relatively high precision.
  • the ring is provided with apertures.
  • the apertures are located outside the second tube segment.
  • a part of the ring that includes the apertures forms an additional part to the muffler.
  • the part of the ring that includes the apertures may forms a muffling part, in addition to the muffler.
  • Such a ring is especially useful in the variation wherein the first exhaust tube forms an outer tube and the second exhaust tube forms an inner tube provided within the outer tube, wherein the muffler is provided in between the inner and outer tube.
  • the ring provided with apertures can be employed for attaching the second exhaust tube, e.g. the first and second tube segment, thereto.
  • the apertures may form an additional part to the muffler, and may be located outside the second exhaust tube.
  • the assembly of the ring-shaped valve housing, the butterfly valve, and the second exhaust tube may, optionally, be inserted inside the first exhaust tube.
  • the valve housing may be attached, e.g. welded or screwed, inside the first exhaust tube.
  • the seat is shaped as a ridge that extends along two arcs that are spaced apart along a normal to a plane of the valve plate in the closed position.
  • the ridge further comprises, at ends of the two arcs, ridge parts that match a rotation path of a surface of the butterfly valve near the ridge parts.
  • a ridge part along a first one of the arcs is comprised by the first housing segment and a ridge part along a second one of the arcs is comprised by the second housing segment.
  • the bearing arrangement comprises a first spherical bearing and/or a second spherical bearing, wherein the valve axle extends from the first spherical bearing to the second spherical bearing.
  • canting of the butterfly valve may be less hindered by deformation, e.g. heat-induced deformation, of the valve axle as a result of thermally induced stress gradients in the butterfly valve.
  • clearance of the bearing arrangement in particular clearance in a radial direction of the valve axle, that may be needed to compensate for said deformation, may be substantially reduced in comparison with known bearing arrangements that lack one or both of the first and second spherical bearing.
  • the first spherical bearing and optionally the second spherical bearing each comprise a ball.
  • the ball is provided with an axle bearing that, in use, bears the valve axle.
  • the valve axle may have one or two axle stubs.
  • the ball is provided with an axle bearing that, in use, bears an axle stub.
  • the first spherical bearing substantially bears the valve axle with the axial expansion space.
  • the second spherical bearing limits translation of the valve axle in the axial direction with respect to the valve housing, preferably substantially fixes the valve axle in the axial direction with respect to the valve housing.
  • the axial expansion space in the first spherical bearing may be larger, e.g. at least three times larger, than the axial expansion space in the second spherical bearing. In this way, excessive vibrational translations of the butterfly valve during use may be prevented, while still providing for the axial expansion space.
  • the axle bearing of the first spherical bearing optionally in combination with the axle bearing of the second spherical bearing, bears the valve axle with an axial expansion space of at least 0.1 millimeter, at least 0.2 millimeter, at least 0.3 millimeter, at least 0.6 millimeter, at least 0.9 millimeter, at least 1.2 millimeter, or at least 1.5 millimeter.
  • the axle bearing of the first spherical bearing preferably in combination with the axle bearing of the second spherical bearing, optionally bears the valve axle with an axial expansion space of at most 2 millimeter, at most 4 millimeter, or at most 6 millimeter.
  • canting of the butterfly valve may be substantially unhindered by extension of the valve axle in a direction along the valve axle as a result of thermally induced stress gradients in the butterfly valve.
  • the axle bearing of the second spherical bearing bears the valve axle with an axial expansion space of at most 0.5 millimeter, at most 0.3 millimeter, or at most 0.15 millimeter.
  • Such expansion space may contribute to defining a position of the butterfly valve in the second exhaust tube. In this way, translation of the valve axle in the axial direction with respect to the valve housing can be limited.
  • the first and/or the second exhaust tube is provided with an opening for receiving a cam that is connected to the valve axle.
  • the cam is arranged for controlling the sealing off of the flow path defined by the second exhaust tube by means of the valve plate.
  • the cam is arranged for controlling an orientation of the valve plate.
  • the cam may be arranged for moving the valve plate from a closed position to an opened position and vice versa.
  • the cam is positioned on the valve axle for having the axial expansion space of the valve axle in the axle bearing of the second spherical bearing at most 0.5 millimeter, at most 0.3 millimeter, at most 0.15 millimeter, or at most 0.10 millimeter.
  • the first housing segment and the second housing segment each form a cup of the first spherical bearing and each form a cup of the second spherical bearing.
  • the cups of the first and second housing segment may, optionally, be mutually substantially symmetrical.
  • the cup of the first spherical bearing and the cup of the second spherical bearing, of the first housing segment may be similarly positioned and/or shaped as the cup of the first spherical bearing and the cup of the second spherical bearing, of the second housing segment.
  • the valve axle and the valve plate comprise one and the same material, preferably substantially consist of one and the same material, more preferably substantially consist of one piece of the one and the same material.
  • the valve axle and the valve plate substantially consist of one and the same material e.g. at least 80 wt% of the valve axle consist of the one and the same material and at least 80 wt% of the valve plate consists of the one and the same material.
  • Such compositions of the valve plate and the valve axle may be considered beneficial as thermal stress as a result of different material compositions can be substantially reduced.
  • movements such as vibrations of parts of the valve plate with respect to the axis may be reduced. Such reduction may be achieved by a better connection between the valve plate and the valve axle, enabled by the external mounting of the butterfly valve in the valve housing. As a result, sound production that may be caused by said vibrations may be reduced as well.
  • valve housing arranged for use in an exhaust for an engine of a motorized vehicle, such as a motorcycle or a car, which exhaust comprises a first exhaust tube, a second exhaust tube, and a muffler provided within the first exhaust tube, wherein the muffler and the second exhaust tube define different flow paths for gases that, in use, flow through the exhaust
  • the valve housing is arranged for mounting a butterfly valve therein and optionally is provided with the butterfly valve, the butterfly valve having a valve axle and a valve plate
  • the valve housing comprising a bearing arrangement for bearing the valve axle with axial expansion space with respect to the valve housing in an axial direction of the valve axle, the valve housing further comprising a seat that is shaped for receiving at least part of a circumferential portion of the valve plate so that the valve plate can substantially seal off the flow path defined by the second exhaust tube with radial expansion space with respect to the valve housing in a radial direction of the valve plate, the axial and radial expansion space being adapted for allowing
  • the valve housing is arranged for use in an exhaust for a motorized vehicle, such as a motorcycle or a car.
  • a motorized vehicle such as a motorcycle or a car.
  • the valve housing and/or the butterfly valve may e.g. be substantially free of rubber and/or plastic components.
  • the invention provides a motorcycle vehicle, provided with an exhaust according to the invention and/or a valve housing according to the invention.
  • the invention provide a method of mounting a butterfly valve in an exhaust for a motorized vehicle, such as a motorcycle or a car, the method comprising - providing a first exhaust tube, a second exhaust tube, and a muffler provided within the first exhaust tube; - providing a butterfly valve having a valve axle and a valve plate; - providing a valve housing comprising a bearing arrangement for bearing the valve axle; and - mounting the butterfly valve in the valve housing so that the bearing arrangement bears the valve axle; and, subsequently to said mounting, - fitting the valve housing and the valve axle inside the second exhaust tube and/or fitting the valve housing in between a first tube segment and a second tube segment of the second exhaust tube.
  • the exhaust the exhaust is an exhaust according to the invention and/or the valve housing is a valve housing according to the invention.
  • Figure 1A schematically shows a longitudinal cross section of an exhaust in a first embodiment according to the invention
  • Figure IB schematically shows a longitudinal cross section of an exhaust in a second embodiment according to the invention
  • Figure 2 shows a part of a valve housing, a first tube segment, and a second tube segment
  • Figure 3A shows an example of a valve plate and a valve axle
  • Figure 3B also shows two balls of respectively a first spherical bearing and a second spherical bearing
  • Figure 3C illustrates an axial expansion space and a radial expansion space
  • Figure 3D schematically shows a cross-sectional view of a butterfly valve
  • Figure 3E shows another possible cross-section of a butterfly valve
  • Figure 3F shows a cross-section of a valve axle in a plane along an axial direction of the valve axle and transverse to a valve plate
  • Figure 4 shows an exploded view of an embodiment of a valve housing with a butterfly valve mounted therein; and Figure 5 shows a second housing segment of the embodiment of figure 4.
  • Figure 1A schematically shows a longitudinal cross section of an exhaust 2 in a first embodiment according to the invention.
  • Figure IB schematically shows a longitudinal cross section of an exhaust 2 in a second embodiment according to the invention.
  • the exhaust 2 of figures 1A and IB may be suitable for use on a motor cycle or another motorized vehicle.
  • the exhaust 2 comprises a first exhaust tube 4A, a second exhaust tube 4B, and a muffler 6 provided within the first exhaust tube 4A.
  • the muffler 6 may comprise muffler elements 6A that are arranged for muffling sound waves generated by an engine of the motorized vehicle that propagate in the first tube.
  • the first exhaust tube 4A may form an outer tube and the second exhaust tube 4B forms an inner tube provided within the outer tube.
  • the muffler 6 may be provided in between the inner and outer tube.
  • the muffler 6 and/or the muffler elements 6A may be provided in an annular space 7 in between the second exhaust tube 4B and the first exhaust tube 4A.
  • the second exhaust tube 4B may be separate from, e.g. may be outside, the first exhaust tube 4A.
  • the first exhaust tube 4A and the second exhaust tube 4B may be connected to a main exhaust tube 4C.
  • the second embodiment of the exhaust 2, and other embodiments wherein the second exhaust tube 4B is separate from, e.g. outside, the first exhaust tube 4A, may be especially useful when the motorized vehicle is a car.
  • the exhaust 2 may further be provided with a butterfly valve 8 having a valve axle 10 and a valve plate 12.
  • the valve plate 12 may e.g. be circular.
  • the valve plate 12 may have a diameter between 4 and 6 centimeter, typically approximately 5 centimeter. However, other shapes and/or other diameters are also possible.
  • Figures 1A and IB show the butterfly valve 8 and the valve plate 12 in an opened position. After canting the valve plate 12 around the valve axle 10, the butterfly valve 8 and the valve plate 12 may be brought into a closed position, indicated by dashed line 14. As a result, the second exhaust tube 4B may be substantially sealed off or blocked.
  • the butterfly valve 8 may thus be arranged for
  • a first flow path Gi may be defined by the second exhaust tube 4B.
  • the second exhaust tube may be provided with openings 5.
  • a second flow path G2 may be defined by the muffler 6 and/or the openings 5. The second flow path may pass through the muffler 6 and the openings 5. It may be clear that when the butterfly 8 valve is opened a volumetric flow rate of exhaust gases through the second exhaust tube 4B may be larger than a volumetric flow rate of exhaust gases through the first exhaust tube 4A and the muffler 6.
  • a volumetric flow rate of exhaust gases through the second exhaust tube 4B may be larger than a volumetric flow rate of exhaust gases through the muffler 6.
  • exhaust gases produced by the engine may escape relatively easily through the second exhaust tube 4B.
  • power of the engine of the motorized vehicle may be relatively high.
  • a relatively loud undisturbed engine sound can be heard by a user of the motorized vehicle.
  • a volumetric flow rate of exhaust gases through the first exhaust tube 4A and the muffler 6 may be larger than a volumetric flow rate of exhaust gases through the second exhaust tube 4B.
  • exhaust gases may predominantly flow through the muffler 6 and the first exhaust tube 4A.
  • the power of the engine is somewhat decreased.
  • the sound of the engine is disturbed and muffled by the muffler 6.
  • the exhaust 2 may further be provided with a valve housing 16 for mounting the butterfly valve 8 therein.
  • the valve housing 16 may comprise a bearing arrangement for bearing the valve axle 10 with axial expansion space with respect to the valve housing in an axial direction of the valve axle. Said axial expansion space is adapted for allowing, in use of the exhaust 2, thermal expansion of the butterfly valve 8 as a result of heat generated by the engine.
  • Such a bearing arrangement is not visible in figures 1A and IB but is shown is figures 2 and 4 with reference number 24.
  • the valve housing 16 may be attached to the second exhaust tube 4B.
  • the valve housing 16 in the first and second embodiment may comprise a seat 40 that is shaped for receiving at least part of a
  • the circumferential portion 12' of the valve plate 12 may substantially seal off the flow path Gi with radial expansion space with respect to the valve housing 16 in a radial direction of the valve plate 12.
  • Said radial expansion space is adapted for allowing, in use of the exhaust 2, thermal expansion of the butterfly valve 8 as a result of heat generated by the engine.
  • the axial and radial direction are indicated in figures 3A-3F with arrows Fi respectively F2. It is noted that the axial and radial directions are not necessarily orthogonal. Instead, the radial direction F2 may substantially coincide with the axial direction Fi.
  • the valve housing 16 and the valve axle 10 may e.g. be dimensioned to fit, in use, inside the first exhaust tube 4A and/or the second exhaust tube 4B with the butterfly valve 8 mounted in the valve housing 16.
  • the valve housing 16 with the butterfly valve 8 mounted therein can be inserted in the first exhaust tube 4A and/or the second exhaust tube 4B.
  • This enables precise mounting of the butterfly valve 8 in the valve housing 16, which can now be performed outside the exhaust 2.
  • Such precise mounting may enable controlling, relatively precisely, a position of the butterfly valve 8, in particular of the valve plate 12 of the butterfly valve 8, in e.g. the first exhaust tube 4A and/or the second exhaust tube 4B and/or in between tube segments of the second exhaust tube 4B.
  • an expansion space around the butterfly valve 8, e.g. around the valve plate 10 of the butterfly valve 8, with respect to a seat 40 of the valve housing may be controlled precisely enough to meet regulations on sound emission.
  • the expansion space may be large enough to prevent that the butterfly valve gets jammed in the exhaust 2, in particular in the first and/or second exhaust tube 4A, 4B, as a result of heating of the butterfly valve, e.g. in a relatively cool exhaust 2.
  • the second exhaust tube may be provided with a stop 25 inside the second exhaust tube 4B for placing the valve housing 16 there against during insertion of the valve housing 16 in the second exhaust tube 4B.
  • valve housing and/or the butterfly valve may be substantially free of rubber and/or plastic components. Such components could be too vulnerable for repeated exposure to heat generated by the engine of the motor cycle or the other motorized vehicle.
  • valve housing 16 and the valve axle 10 may be dimensioned to fit, in use, inside the second exhaust tube 4B with the butterfly valve 8 mounted in the valve housing 16.
  • the valve housing 16 with the butterfly valve 8 mounted therein may be inserted into the second exhaust tube 4B. Such inserting is indicated by arrow I in figure IB.
  • valve housing 16 and the valve axle 10 may be dimensioned to fit, in use, inside the first exhaust tube 4A with the butterfly valve 8 mounted in the valve housing 16.
  • the valve housing 16 may not fit inside the second exhaust tube 4B.
  • the second exhaust tube 4B may comprise a first tube segment 4B' and a second tube segment 4B".
  • the valve housing 16 may be attached to the second exhaust tube 4B in between the first and second tube segment 4B', 4B".
  • the first tube segment 4B' and the second tube segment 4B" may be welded to the valve housing 16. Such welding may advantageously be performed outside the exhaust 2.
  • valve housing 16 with the first tube segment 4B', the second tube segment 4B", and the muffler 6 attached thereto may be inserted into the first exhaust tube 4A. Such inserting is indicated by arrow I in figure IB.
  • the valve housing 16 and the valve axle 10 are dimensioned to fit in between the first tube segment 4B' and the second tube segment 4B". It is noted however that also in a variation of the second embodiment, the valve housing 16 and the valve axle 10 may be dimensioned to fit, and optionally fitted, in between the first tube segment 4B' and the second tube segment 4B".
  • Mounting the butterfly valve 8 in the exhaust 2 for the motorized vehicle, e.g. the motorcycle, may thus be performed in an embodiment of a method according to the invention.
  • Such an embodiment may comprise the step of providing the first exhaust tube 4A, the second exhaust tube 4B, and the muffler 6 provided within the first exhaust tube 4A.
  • the embodiment of the method may further comprise providing the butterfly valve 8 having the valve axle 10 and the valve plate 12.
  • the method may, in said embodiment, further comprise providing the valve housing 16 comprising the bearing arrangement 24 for bearing the valve axle 10.
  • the embodiment of the method according to the invention may further comprise mounting the butterfly valve 8 in the valve housing 16.
  • the method may comprise fitting the valve housing 16 and the valve axle 10 inside the second exhaust tube 4B and/or may comprise fitting the valve housing 16 and optionally the valve axle 10 in between the first tube segment 4B' and the second tube segment 4B" of the second exhaust tube 4B.
  • FIG. 2 shows part of the valve housing 16, the first tube segment 4B', and the second tube segment 4B".
  • the valve housing 16 may be shaped as a ring, e.g. a circular ring or an oval ring or a rectangular ring.
  • the valve housing 16 may be shaped as a ring around the valve plate 12 (not visible in figure 2) and comprises a bearing arrangement 24 for the valve axle 10. More in general, the valve housing 16 may be shaped similarly as a circumference of the first and/or second exhaust tube 4B.
  • the second exhaust tube 4B in particular the first tube segment 4B' and second tube segment 4B" is shaped as a circular ring, as well as the valve housing 16.
  • the valve housing 16 may be provided with apertures 20 that are located outside the second tube segment 4B.
  • the apertures 20 may be spaced apart from the second tube segment in the radial direction.
  • a part of the ring that includes the apertures 20 may thus form an additional part to the muffler 6.
  • Figure 2 further shows the valve axle 10.
  • an extent of the valve axle 10 is preferably limited by an imaginary surface that forms an extension of an outer surface 22 of the valve housing 16.
  • the valve axle 10 preferably does not project out of the valve housing 16.
  • the valve axle 10 preferably does not project through the imaginary surface.
  • the valve housing 16 and the valve axle 10 are also dimensioned to fit, in use, inside the first exhaust tube 4A with the butterfly valve 8 mounted in the valve housing 16.
  • a thickness and composition of the valve plate 12 and/or the valve axle 10 preferably is arranged for substantially preventing, in use, vibrations of the valve plate 12 in the closed position 14.
  • a thickness of the valve plate 12 is at least 2 millimeter, preferably at least 3 millimeter.
  • the valve plate 12 comprises steel, and preferably is made of steel, for example stainless steel. Experiments performed by the inventor showed that such properties of the valve plate 12 may substantially prevent said vibrations. As a result of preventing such vibrations, a lifetime of the butterfly valve 8 may be extended. Additionally, sound waves that may be generated by or transmitted through the valve plate 12, may be reduced in strength.
  • Figure 3A shows an example of the valve plate 12 and the valve axle 10.
  • the valve axle 10 and the valve plate 12 substantially consist of one and the same material, for example steel, e.g. stainless steel.
  • the valve plate 12 and the valve axle 10 preferably substantially consist of one piece of the one and the same material. I.e., the valve plate and the valve axle together, may be substantially free of internal joints.
  • the valve plate 12 and the valve axle 10 can for example be made of one piece of base material, e.g. steel, e.g. stainless steel.
  • valve housing 16 and the valve axle 10 are dimensioned to fit, in use, inside the first exhaust tube 4A and/or the second exhaust tube 4B, with the butterfly valve 8 mounted in the valve housing 16.
  • Figure 3A again shows the valve plate 12 and the valve axle 10 of figure 3A.
  • Figure 3B also shows two balls 26 of respectively a first spherical bearing 32A and a second spherical bearing 32B.
  • the balls 26 are each provided with an axle bearing 30 that, in use, bears the valve axle 10.
  • the axle bearings 30 may comprise slide bearings.
  • each axle bearing 30 may comprise a slide bearing.
  • the spherical bearings 32A, 32B may allow for deformations of the butterfly valve, in particular deformations of the axle of the butterfly valve, without severely hindering canting of the butterfly valve 8. Such deformations may e.g. result from heat gradients inside the butterfly valve and/or back fires in the engine.
  • a sensitivity of the butterfly valve 8 for deformations of the butterfly valve 8 may be reduced.
  • the valve axle 10 may have one or two axle stubs 34.
  • the axle bearing 30 of the first spherical bearing 32A bears the valve axle 10 with an axial expansion space, e.g. of at least 0.6 millimeter.
  • a length Li of an axle stub 34 associated with the first spherical bearing 32A may be adapted to a thickness Wi, measured parallel with the valve axle 10, of the ball 26 associated with the first spherical bearing 32A.
  • the axle stub 34 may extend from the valve plate 12 over a distance of e.g. at least 0.6 millimeter and at most 1.4 millimeter, e.g.
  • values of expansion space and clearance provided herein may e.g. refer to a situation before or after use when the exhaust, the butterfly valve, and the valve housing have adjusted to a temperature of an
  • expansion space and clearance may refer to a situation during use.
  • the axle bearing 30 of the second spherical bearing 32B bears the valve axle 10, e.g. with an axial expansion space of at most 0.25 millimeter.
  • a length L2 of an axle stub 34 associated with the second spherical bearing 32B may be at most 0.25 millimeter larger than a thickness W2, measured parallel with the valve axle 10, of a the ball 26 associated with the second spherical bearing 32B.
  • the slide bearings may have sliding surfaces formed by an outer surface 33 of the axle stubs 34 and an inner surface 35 of a bearing cavity 37 provided in the balls 26.
  • a material composition of the inner surface 35 may be similar, e.g. identical, to a material composition of the outer surface 33.
  • a hardness of the inner surface 35 may be similar, e.g. identical, to a hardness of the outer surface 37.
  • the outer surface 33 and the inner surface 35 may be formed by a layer comprising Nickel, e.g. a layer substantially made of Nickel.
  • the axle stubs 34 may be provided with a layer, e.g. the layer comprising Nickel
  • the balls 26 may have a cavity being provided with a layer, e.g. the layer comprising Nickel.
  • Such properties of the sliding surfaces of slide bearings are uncommon but advantageous for application in an exhaust.
  • Figure 3C illustrates the axial expansion space ⁇ and the radial expansion space ARAD, as well as the bearing cavity 37, the inner surface 35 of the bearing cavity 37, and the outer surface 33 of the axle stubs 34.
  • the axial expansion space ⁇ may be the sum of an axial expansion space ⁇ , ⁇ in the first spherical bearing 32A and an axial expansion space ⁇ , ⁇ in the second spherical bearing 32B.
  • the axial expansion space ⁇ may be at least 0.6 millimeter and/or at most 1.4 millimeter.
  • the value of the axial expansion space ⁇ may change linearly proportionally with the length LP,A. The axial expansion space ⁇ may thus be adjusted to the length of the valve axle in between the axle stubs 34 and/or to a diameter of the valve plate in between the bearings 32A, B of the bearing arrangement.
  • the radial expansion space ARAD may be at least 1.1 millimeter and/or at most 1.6 millimeter, e.g. approximately 1.35 mm.
  • the value of the radial expansion space ARAD may change linearly proportionally with the length Lp.
  • the radial expansion space ARAD may thus be adjusted to the diameter of the valve plate Lp, e.g. measured in the direction transverse to the longitudinal direction of the valve axle. It is noted that the radial direction F2 along which ARAD is measured, may approximately be directed along the axial direction Fi, but can alternatively be transverse to the axial direction Fi.
  • Figure 3C also indicates the clearance ⁇ , in the first and second bearing arrangement, in a radial direction of the valve axle.
  • Said clearance ⁇ may typically be in a range from 0.1 millimeter to 0.4 millimeter, e.g.
  • Said clearance ⁇ may equal half of a difference between a diameter 37' of the bearing cavity 37 and a diameter 34' of an axle stub 34, e.g. being approximately 8 millimeter.
  • Figure 3D schematically shows a cross-sectional view of the butterfly valve 8, along section A- A' as indicated in figure 3A.
  • a first plane 27A wherein a first portion 12A of the valve plate 12 extends may be offset with respect to a second plane 27B wherein a second portion 12B of the valve plate 12 extends.
  • the butterfly valve 8 may be asymmetrically shaped with respect to a plane, e.g. the first plane 27A or the second plane 27B, along which the valve plate 12 extends.
  • a surface 29 of the valve axle 10 may have facets 29', as in this example, e.g. four facets, or may be rounded. The surface 29 having the facets 29' may enable relatively easy manufacturing of the butterfly valve 8.
  • a surface 29 of the valve axle 10 that is rounded may be obtained by casting the butterfly valve 8.
  • FIG. 3E shows another possible cross-section of the butterfly valve
  • a thickness Di of the valve plate 12, at a part of the circumferential portion 12' that is spaced apart from the valve axle 10, may be smaller, e.g. at least 1.5 times smaller, than a thickness D2 of the valve plate near a central portion 12" of the valve plate 12.
  • the valve plate 10 may be aerodynamically shaped.
  • the valve plate 10 may e.g. be substantially rounded and may e.g. be substantially free of edges. This may be beneficial when the butterfly valve 8 and the valve plate 10 are in the opened position. More in general, the circumferential portion 12' and/or the central portion 12" of the valve plate 12 may extend over e.g. 5% or 10% of a diameter Lp of the valve plate 10.
  • Figure 3F shows a cross-section of the valve axle 10 in a plane along the axial direction Fi of the valve axle 10 and transverse to the valve plate 12.
  • the valve axle 10 may have a thickness Ai in said plane, at or near a central portion 10" of the valve axle.
  • the valve axle 10 may have a thickness A2 in said plane, at or near an outer portion 10', e.g. adjacent to the stubs 34, of the valve axle 10.
  • the thickness Ai may be smaller, e.g. at least 1.2 times smaller, than the thickness A2.
  • the central portion 10" of the valve axle 10 and/ or the outer portion 10' of the valve axle 10 may extent over e.g. 5% or 10% of a length LA of the valve axle 10.
  • FIG 4 shows an exploded view of an embodiment of the valve housing 16 with the butterfly valve 8 mounted therein.
  • the valve housing 16 comprises the bearing arrangement 24.
  • the bearing arrangement 24 comprises the first spherical bearing 32A and the second spherical bearing 32B.
  • the valve axle 10 extends from the first spherical bearing 32A to the second spherical bearing 32B.
  • the valve housing 16 of figure 4 may be arranged for use in the exhaust 2 for the motorized vehicle, e.g. the motorcycle.
  • Such an exhaust 2 may comprises the first exhaust tube 4A, the second exhaust tube 4B, and the muffler 6 provided within the first exhaust tube 4A.
  • the valve housing 16 is arranged for mounting the butterfly valve 8 therein.
  • the valve housing 16 may comprise the bearing arrangement 24 for bearing the valve axle 10 of the butterfly valve 8.
  • the valve housing 16 and the valve axle 10 are dimensioned to fit, in use, inside the second exhaust tube 4B with the butterfly valve 8 mounted in the valve housing 16.
  • the second exhaust tube 4B comprises the first tube segment 4B' and a second tube segment 4B" and the valve housing 16 is dimensioned to fit in between the first tube segment 4B' and second tube segment 4B".
  • the valve housing 16 may comprise a first housing segment 16A and a second housing segment 16B.
  • the first housing segment 16A and the second housing segment 16B may each form a cup 36A of the first spherical bearing 32A and each form a cup 36B of the second spherical bearing 32B.
  • the first housing segment 16A and the second housing segment 16B may be provided with screw holes 38 for attaching the first and second housing segments 16A, 16B with each other.
  • the screw holes 38 of the first housing segment 16A may extend through the first housing segment 16A, i.e. may form through-holes.
  • the screw holes 38 of the second housing segment 16B may also extend through the second housing segment 16B, or may partly extend through the second housing segment 16B. i.e. may form blind holes.
  • the screw holes 38 of the first housing segment 16A may be threaded or may not be threaded.
  • the screw holes 38 of the second housing segment 16B may be threaded.
  • the cups 36A, 36B of first and second housing segment 16A, 16B may, optionally, be substantially symmetrical.
  • the cups 36A, 36B of the first housing segment 16A may substantially be a mirror image of the cups 36A, 36B of the second housing segment 16B.
  • the cup 36A of the first spherical bearing 32A and the cup 36B of the second spherical bearing 32 A, of the first housing segment 16A may be similarly positioned and/or shaped as the cup 36A of the first spherical bearing 32A and the cup 36B of the second spherical bearing 32B, of the second housing segment 16B. Such may further add to precision of mounting the butterfly valve 8.
  • first and second housing segment 16A, 16B may be provided with the screw hole 38 in a vicinity of the bearing arrangement 24.
  • positions of the cups 36A of the first spherical bearing 32A and the cups 36B of the second spherical bearing 32B can be better defined. These positions may e.g. be less prone to mechanical
  • a cam 46 may be connected to the valve axle 10, in particular to the axle stub 34 associated with the second spherical bearing 32B.
  • the valve axle 10 may be provided with a notch for receiving the cam 46.
  • the notch is not visible in figure 4 but is shown in figures 3A and 3B with reference number 47.
  • the cam 46 may, alternatively or additionally, e.g. be screwed on the valve axle 10 by means of a screw 49, in particular on the axle stub 34 associated with the first spherical bearing 32A.
  • the first and second housing segments 16A, 16B may be provided with a cavity 48 for receiving the cam 46.
  • the first exhaust tube 4A and/or the second exhaust tube 4B may be provided with an opening for receiving the cam 46.
  • the cam 46 may be connected to the valve axle 10 to project outside the first exhaust tube 4A and/or the second exhaust tube 4B. A force exerted by an actuator mechanism for canting the butterfly valve 8 may be applied to the cam 46.
  • the cam 46 may project in an axial direction from the valve axle 10, in particular from the axle stub 34. A diameter of the cam 46 may exceed a diameter of the valve axle 10 or the axle stub 34 to which the cam 46 may be connected, near a position of such connection.
  • the cam 46 when connected to the valve axle 10 or the axle stub 34 may limit movement of the valve axle 10 in an axial direction of the valve axle 10.
  • the cam 46 may be used for limiting axial expansion space of the valve axle 10 in the axle bearing 30 of the second spherical bearing 32B. It may thus be clear how, for example, the cam 46 can be positioned on the valve axle 10 for having the axial expansion space of the valve axle 10 in the axle bearing 30 of the second spherical bearing 32B at most, e.g., 0.25 millimeter.
  • the valve housing 16 may comprise a seat 40 on which the valve plate 12 can substantially seal off the second exhaust tube 4B when the butterfly valve 8 and the valve plate 12 are in the closed position 14.
  • the seat 40 may be shaped as a ridge that extends along two arcs 42A, 42B that are spaced apart along a normal to a plane of the valve plate 12 in the closed position 14.
  • the arcs may be have a rounded shape and/or may have a rectangular shape, e.g. comprise edges.
  • the valve housing e.g. the first housing segment 16A and/or the second housing segment 16B, may be provided with a connection structure.
  • the connection structure comprises a connection ridge 43A and a connection recess 43B.
  • the connection ridge 43A may be arranged for attaching the first tube segment 4B' or the second tube segment 4B" thereto, e.g. by welding.
  • the connection recess 43B may be arranged for receiving the first tube segment 4B' or second tube segment 4B".
  • Figure 5 shows the second housing segment 16B of the embodiment of figure 4.
  • the ridge 40 may further comprises, at ends of the two arcs, ridge parts 44 that match a rotation path of a surface of the butterfly valve 8 near the ridge parts 44.
  • a butterfly valve as described with reference to figures 3A-3F may be mounted in a housing as described with reference to figures 1, 2, and 4, but that alternatively another butterfly valve may be used.
  • the housing and butterfly valve as described with reference to figure 1, 2, and 4 may be used in an exhaust according to the first embodiment, according to the second embodiment, and according to the variation of the second embodiment.
  • another housing and butterfly valve may be used as well in those embodiments of the exhaust.
  • the first exhaust tube 4A may e.g. form an outside surface of the exhaust 2.
  • the exhaust 2 may e.g.
  • the second flow path G2 may pass, via perforation in the first exhaust tube, through the additional exhaust tube outside the first and second exhaust tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust Silencers (AREA)

Abstract

L'invention concerne un échappement pour un véhicule automobile, comme par exemple une moto ou une voiture. L'échappement comprend un premier tuyau d'échappement, un second tuyau d'échappement et un pot d'échappement disposé à l'intérieur du premier tuyau d'échappement. L'échappement est doté d'une soupape papillon conçue pour condamner sensiblement le second tuyau d'échappement. La soupape papillon comprend un axe de soupape et une plaque porte-soupape. L'échappement est en outre doté d'un logement de soupape permettant le montage de la soupape papillon à l'intérieur de celui-ci. Le logement de soupape comprend un agencement de support destiné à supporter l'axe de soupape. Le logement de soupape et l'axe de soupape sont dimensionnés de manière à s'ajuster, lors de l'utilisation, à l'intérieur du second tuyau d'échappement avec la soupape papillon montée dans le logement de soupape, et/ou le second tuyau d'échappement comprend un premier segment de tuyau et un second segment de tuyau et le logement de soupape est dimensionné de manière à s'ajuster entre les premier et second segments de tuyau.
PCT/NL2011/050599 2010-09-02 2011-09-01 Échappement, logement de soupape, véhicule automobile, et procédé de montage WO2012030222A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL2005304A NL2005304C2 (en) 2010-09-02 2010-09-02 Exhaust, valve housing, motorized vehicle, and method of mounting.
DE202010012100U DE202010012100U1 (de) 2010-09-02 2010-09-02 Auspuff, Klappengehäuse und motorisiertes Fahrzeug
DE202010012100.0 2010-09-02
NL2005304 2010-09-02

Publications (1)

Publication Number Publication Date
WO2012030222A1 true WO2012030222A1 (fr) 2012-03-08

Family

ID=44654448

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2011/050599 WO2012030222A1 (fr) 2010-09-02 2011-09-01 Échappement, logement de soupape, véhicule automobile, et procédé de montage

Country Status (1)

Country Link
WO (1) WO2012030222A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130153803A1 (en) * 2010-06-30 2013-06-20 Valeo Systemes De Controle Moteur Fluid valve
WO2014202883A1 (fr) * 2013-06-20 2014-12-24 Valeo Systemes De Controle Moteur Vanne, notamment pour moteur thermique
WO2014202882A1 (fr) * 2013-06-20 2014-12-24 Valeo Systemes De Controle Moteur Vanne, notamment pour moteur thermique
WO2015114447A1 (fr) * 2014-01-31 2015-08-06 CEROBEAR GmbH Systèmes de roulement et leurs procédés d'utilisation
CN106090261A (zh) * 2016-08-23 2016-11-09 成都欧浦特控制阀门有限公司 一种低阻力的耐用蝶阀组件
WO2017079156A1 (fr) * 2015-11-02 2017-05-11 Roush Enterprises, Inc. Silencieux à voies d'échappement sélectionnées
EP3351757A1 (fr) * 2017-01-20 2018-07-25 Wipro Limited Système et procédé pour atténuer le son produit par un véhicule
WO2019063073A1 (fr) * 2017-09-27 2019-04-04 Applied Materials, Inc. Vanne de verrouillage pour scellement sous vide, chambre à vide et système de traitement sous vide
US10443479B2 (en) 2014-10-30 2019-10-15 Roush Enterprises, Inc. Exhaust control system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4136206A1 (de) * 1991-11-02 1993-05-06 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De Abgasanlage eines kraftfahrzeug-hubkolbenmotors
WO1993011347A1 (fr) * 1991-12-04 1993-06-10 Graeme Charles Stephens Pot d'echappement
WO1997040264A1 (fr) 1996-04-22 1997-10-30 Meusen Wilhelmus Lambertus Arn Ensemble echappement destine a des moteurs a combustion et vehicule pourvu d'un tel ensemble
US20060059902A1 (en) * 2004-09-23 2006-03-23 Hans Gerards Exhaust flap means
DE102007014446A1 (de) * 2007-03-27 2008-10-02 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Abgasanlage einer Brennkraftmaschine sowie Verfahren zur Erzeugung einer bestimmten Abgasfrequenz in einer Abgasanlage
US20090217668A1 (en) * 2006-05-02 2009-09-03 Helmut Venghaus Device for influencing an exhaust gas flow

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4136206A1 (de) * 1991-11-02 1993-05-06 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De Abgasanlage eines kraftfahrzeug-hubkolbenmotors
WO1993011347A1 (fr) * 1991-12-04 1993-06-10 Graeme Charles Stephens Pot d'echappement
WO1997040264A1 (fr) 1996-04-22 1997-10-30 Meusen Wilhelmus Lambertus Arn Ensemble echappement destine a des moteurs a combustion et vehicule pourvu d'un tel ensemble
US20060059902A1 (en) * 2004-09-23 2006-03-23 Hans Gerards Exhaust flap means
US20090217668A1 (en) * 2006-05-02 2009-09-03 Helmut Venghaus Device for influencing an exhaust gas flow
DE102007014446A1 (de) * 2007-03-27 2008-10-02 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Abgasanlage einer Brennkraftmaschine sowie Verfahren zur Erzeugung einer bestimmten Abgasfrequenz in einer Abgasanlage

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9163733B2 (en) * 2010-06-30 2015-10-20 Valeo Systemes De Controle Moteur Fluid valve
US20130153803A1 (en) * 2010-06-30 2013-06-20 Valeo Systemes De Controle Moteur Fluid valve
WO2014202883A1 (fr) * 2013-06-20 2014-12-24 Valeo Systemes De Controle Moteur Vanne, notamment pour moteur thermique
WO2014202882A1 (fr) * 2013-06-20 2014-12-24 Valeo Systemes De Controle Moteur Vanne, notamment pour moteur thermique
FR3007486A1 (fr) * 2013-06-20 2014-12-26 Valeo Sys Controle Moteur Sas Vanne, notamment pour moteur thermique
FR3007487A1 (fr) * 2013-06-20 2014-12-26 Valeo Sys Controle Moteur Sas Vanne notamment pour moteur thermique
WO2015114447A1 (fr) * 2014-01-31 2015-08-06 CEROBEAR GmbH Systèmes de roulement et leurs procédés d'utilisation
US9394939B2 (en) 2014-01-31 2016-07-19 CEROBEAR GmbH Bearing system and methods of use thereof
US10443479B2 (en) 2014-10-30 2019-10-15 Roush Enterprises, Inc. Exhaust control system
US10082058B2 (en) 2015-11-02 2018-09-25 Roush Enterprises, Inc. Muffler with selected exhaust pathways
WO2017079156A1 (fr) * 2015-11-02 2017-05-11 Roush Enterprises, Inc. Silencieux à voies d'échappement sélectionnées
CN106090261A (zh) * 2016-08-23 2016-11-09 成都欧浦特控制阀门有限公司 一种低阻力的耐用蝶阀组件
US10319357B2 (en) 2017-01-20 2019-06-11 Wipro Limited System and a method for attenuating sound produced by a vehicle
EP3351757A1 (fr) * 2017-01-20 2018-07-25 Wipro Limited Système et procédé pour atténuer le son produit par un véhicule
WO2019063073A1 (fr) * 2017-09-27 2019-04-04 Applied Materials, Inc. Vanne de verrouillage pour scellement sous vide, chambre à vide et système de traitement sous vide
CN109844383A (zh) * 2017-09-27 2019-06-04 应用材料公司 用于真空密封的锁定阀、真空腔室以及真空处理系统
CN109844383B (zh) * 2017-09-27 2020-10-09 应用材料公司 用于真空密封的锁定阀、真空腔室以及真空处理系统

Similar Documents

Publication Publication Date Title
WO2012030222A1 (fr) Échappement, logement de soupape, véhicule automobile, et procédé de montage
CA2923024A1 (fr) Silencieux dote de chambres de dilatation et procede de fabrication associe
JP2007056794A (ja) 内燃機関の吸気ポート構造
JP2002089843A (ja) タービン燃焼器中のフラシールの耐破壊性支持構造及び関連する方法
JP2011163342A (ja) 消音器
US20150030434A1 (en) Damping device for being situated between a housing wall and a casing ring of a housing of a thermal gas turbine
KR20120099051A (ko) 배기 가스 소음기
JP2012057320A (ja) Ａｌｃ防火区画貫通孔を形成する施工方法
EP2698511B1 (fr) Silencieux pour un système d'échappement d'un moteur à combustion interne
RU2007116052A (ru) Задняя часть турбореактивного двигателя самолета, турбореактивный двигатель и самолет
JP2006077770A (ja) スロットルバルブユニットを製造するための方法
NL2005304C2 (en) Exhaust, valve housing, motorized vehicle, and method of mounting.
JP6872171B2 (ja) バルブ構造
JP4576239B2 (ja) エンジン用マフラ
JP2015124728A (ja) ターボチャージャ
WO2011117667A1 (fr) Structure de limitation de son rayonné
JP6633660B2 (ja) 軸封装置
JP2009127839A (ja) シール部材の装着支援装置、シール部材、及びスロットル装置
US6913112B2 (en) Noise attenuation assembly
US10961896B2 (en) Method for manufacturing a flap carrier for an exhaust gas flap
JP2008061872A (ja) 防火措置具
JP2009197751A (ja) 消音器
JP2005140115A (ja) 内燃機関のエアギャップ絶縁型排気マニホルド
JPH11324638A (ja) 排気系バルブの弁体組み付け方法と排気系バルブ
JP2008208858A (ja) トリポート型等速ジョイント

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11758270

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11758270

Country of ref document: EP

Kind code of ref document: A1