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WO2013010518A2 - Dispositif de papillon des gaz - Google Patents

Dispositif de papillon des gaz Download PDF

Info

Publication number
WO2013010518A2
WO2013010518A2 PCT/DE2011/001571 DE2011001571W WO2013010518A2 WO 2013010518 A2 WO2013010518 A2 WO 2013010518A2 DE 2011001571 W DE2011001571 W DE 2011001571W WO 2013010518 A2 WO2013010518 A2 WO 2013010518A2
Authority
WO
WIPO (PCT)
Prior art keywords
sealing ring
throttle valve
throttle
closed position
valve device
Prior art date
Application number
PCT/DE2011/001571
Other languages
German (de)
English (en)
Other versions
WO2013010518A3 (fr
Inventor
Peter Holzheu
Original Assignee
Fey Lamellenringe Gmbh & Co. Kg
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
Application filed by Fey Lamellenringe Gmbh & Co. Kg filed Critical Fey Lamellenringe Gmbh & Co. Kg
Publication of WO2013010518A2 publication Critical patent/WO2013010518A2/fr
Publication of WO2013010518A3 publication Critical patent/WO2013010518A3/fr

Links

Classifications

    • 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
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3268—Mounting of sealing rings
    • F16J15/3272—Mounting of sealing rings the rings having a break or opening, e.g. to enable mounting on a shaft otherwise than from a shaft end
    • 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
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
    • 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
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat

Definitions

  • the invention is based on a throttle valve device with a housing having a flow fluid flow channel and having a pivotable about a flap axis and in the closed position with a throttle seat cooperating throttle to adjust depending on the rotational position of the throttle a flow cross section for the fluid, wherein between the throttle seat and the throttle valve is provided at least one sealing ring, the free ends form a ring interruption, according to the preamble of claim 1.
  • the invention is based on a sealing ring for sealing between a throttle valve seat and a throttle valve throttle body, which has a housing having a fluid flow flow channel housing having, the throttle valve in the closed position with the throttle seat sealingly together and is pivotable about a flap axis to depending on adjust the rotational position of the throttle valve has a flow cross section for the fluid, wherein the free ends of the sealing ring form a ring break, according to the preamble of claim 18th
  • a "fluid” is to be understood as meaning both a gaseous medium and a medium present in liquid form.
  • a generic throttle valve device and a generic sealing ring are known for example from DE 10 2006 020 718 A1.
  • the throttle valve device is arranged in the intake tract of an internal combustion engine.
  • it is important that the throttle devices such as in an air flow meter of a ⁇ -control or in an exhaust gas recirculation system of an internal combustion engine, it is important that the
  • the sealing ring is provided.
  • the sealing ring should be seen in the circumferential direction have a certain freedom of movement to adapt to changing temperature conditions or tolerances of the throttle seat. Therefore, a ring interruption is provided in the known sealing ring, in which the ring ends are seen in the circumferential direction spaced from each other. Due to the distance between the ring ends of each other, however, an undesirable leakage flow is present even in the Schi man too the throttle.
  • the invention is based on the object, a throttle valve device or a sealing ring of the type mentioned in such a way that in the closed position of the throttle as low as possible leakage occurs.
  • the invention relates both to a throttle device with arranged between a throttle seat and a throttle valve for sealing purposes sealing ring as well as a sealing ring for sealing between a throttle seat and a throttle valve body, wherein the free ends of the sealing ring form a ring break and in the field of ring interruption overlap.
  • the free ends of the sealing ring relative to each other at least limited mobility.
  • Limited movable in this context means that the free ends of the sealing ring seen in the circumferential direction have a certain range of motion to changing temperature conditions or tolerances of the throttle valve seat or the inner or outer diameter of the sealing ring depending on its rotational position to the throttle seat or to be able to adapt to certain sealing requirements.
  • the sealing ring is an inwardly exciting sealing ring and arranged on the throttle valve seat on the radially inner peripheral surface of the flow channel. Consequently, the sealing ring is stationary and, for example, received in a circumferential annular groove of the radially inner peripheral surface of the flow channel with radial clearance.
  • Inwardly exciting means in this context that the sealing ring clamps in the closed position of the throttle radially inward against the radially outer edge of the throttle valve. Then ensures the low leakage current, which infiltrates the outer diameter of the sealing ring in the groove bottom of the annular groove, that the sealing ring is pressed radially inwardly against the radially outer edge of the throttle valve, which improves the sealing effect against the throttle.
  • the sealing ring may be arranged an outwardly exciting sealing ring and the radially outer edge of the throttle valve, for example, characterized in that the sealing ring is received in a circumferential annular groove of the outer edge of the throttle with radial play. Then ensures the low leakage current, which infiltrates the inner diameter of the sealing ring in the groove bottom of the annular groove, that the elastic sealing ring is pressed radially outward against the throttle seat, which improves the sealing effect against the throttle seat.
  • the outer diameter of the seal ring protruding from the annular groove is slightly larger than the inner diameter of the throttle valve seat at the radially inner peripheral surface of the flow passage in an opened position of the throttle valve, the ends of the seal ring move out of rotation upon rotation of the throttle valve from the closed position deviating position in the closed position towards each other and upon rotation of the throttle valve from the closed position to a position deviating from the closed position away from each other.
  • the sealing ring when rotating from a position deviating from the closed position to the closed position, the sealing ring, which co-rotates with the throttle flap, starts from a point contact in an, for example, circumferential line contact with the throttle valve seat.
  • the overlapping of the ends of the sealing ring is formed such that the ends of the sealing ring are arranged in a plane with the deviating from the overlap part of the sealing ring.
  • the ends of the sealing ring in the overlapping region engage in a stepwise manner, wherein the gradation is formed perpendicular to the ring plane.
  • the ends of the sealing ring each have an axially projecting annular collar and a recess such that the annular collar of one end engages in the recess of the other end and the annular collar of the other end in the recess of one end, wherein seen in the circumferential direction in each case one End of an annular collar to one end of a recess has a distance which is dependent on the rotational position of the throttle valve.
  • the ends of the sealing ring can also engage in a wedge shape, ie the free ends of the sealing ring each have complementary wedge surfaces which can slide on one another, but are spaced apart in the ground state.
  • the sealing ring is produced by plastic bending and heat treatment of a straight rod-shaped element. Due to the bending creates a pressure zone below the neutral zone and a tensile zone above the neutral zone. Then measured perpendicular to the ring plane thickness of the sealing ring in the region of the pressure zone is greater than in the region of the tension zone.
  • the sealing ring can be produced by separating from a tubular element, wherein the end faces of the sealing ring are then machined and / or ground and / or honed or lapped, for example, and then lie in mutually parallel plane.
  • the throttle valve device according to the invention is preferably part of an air quantity measuring device for internal combustion engines or an exhaust gas recirculation device for internal combustion engines.
  • a fresh gas flow is controlled by the throttle valve device, in the second case an exhaust gas flow.
  • Throttle valve device with a arranged on a radially outer edge of the throttle valve sealing ring in the closed position
  • FIG. 2 is a perspective view of the throttle valve device of Figure 1 in the open position.
  • 3 shows an enlarged detail of the sealing ring; 4 shows a cross section of the sealing ring;
  • Throttle valve device with a arranged on a radially inner peripheral surface of the flow channel sealing ring in the closed position;
  • FIG. 6 shows a perspective view of the throttle valve device of Figure 5 in the open position.
  • FIG. 1 an embodiment of a throttle valve device 1 according to the invention in a closed position is shown, in which the pivotable about a damper shaft 2 throttle or a worn on its radially outer edge 6 sealing ring 8 with a throttle flap seat 10 at a radially inner Peripheral surface 12 of a flow channel 14 sealingly acts together.
  • the two facing to a pressure side or facing away from this throttle valve surfaces 16, for example, perpendicular to the flow direction of the fluid or to a central axis 18 of the flow channel 14 are arranged.
  • the sealing ring 8 only part of the throttle valve 4 is shown.
  • the throttle valve device 1 is preferably part of an air quantity measuring device for controlling a fresh gas flow or an exhaust gas recirculation device for internal combustion engines for controlling an exhaust gas flow.
  • the throttle valve device 1 can be used to control any flow of fluid flowing in a flow channel 14, such as, for example, liquids such as water, especially in the sanitary area.
  • the flow channel 14 is then formed in a housing 20 of the corresponding device.
  • a certain flow cross-section for the fluid in the flow channel 14th set.
  • This flow cross section is equal to zero in the closed position shown in FIG. In Figure 2, an open position is shown, in which the throttle valve 4 occupies a certain angle relative to the flow direction of the fluid or the central axis 18 of the flow channel 14 and thus releases a certain flow cross-section.
  • the flap axis 2 is preferably located in the plane of the throttle valve 4th
  • the sealing ring 8 is supported by the throttle valve 4 and therefore pivoted together with respect to the throttle seat 10, which is formed on the radially inner peripheral surface 12 of the flow channel 14 in the plane of the throttle valve 4.
  • the free ends 22, 24 of the sealing ring 8 form a ring interruption 26. It is essential that the free ends 22, 24 of the sealing ring 8 overlap in the region of the ring interruption 26. Due to the overlapping of the ends 22, 24, which prevents a straight flow through the sealing ring 8 parallel to a central axis 18 of the flow channel 14, the flow of the fluid is deflected at the overlap in the manner of a labyrinth seal at least once. In the closed position of the throttle valve 4, the overlap of the ends 22, 24 is perpendicular to the then merely imaginary flow of the fluid or perpendicular to the central axis 18 of the flow channel 14th
  • the ends 22, 24 of the sealing ring 8 in the overlapping region engage in a stepwise manner or in the manner of a rectangular joint, as shown in FIG.
  • the ends 22, 24 of the sealing ring 8 for example, in each case an axially projecting annular collar 28, 28 'and a recess 30, 30' in such a way that the annular collar 28 of the one end 22 in the recess 30 of the other end 24 and the annular collar 28th 'engages the other end 24 in the recess 30' of the one end 22, wherein seen in the circumferential direction one end of a collar 28, 28 'to one end of a recess 30, 30' each have a distance X, which depends on the rotational position of the throttle 4 is.
  • the overlap of the ends 22, 24 of the sealing ring 8 is preferably formed such that the ends of the sealing ring 22, 24 are arranged in a plane with the deviating from the overlap part of the sealing ring 8.
  • all sections of the sealing ring 8 are in a single ring plane.
  • the region of the overlap could also be arranged outside the plane of the part of the sealing ring 8 deviating from the overlap.
  • the sealing ring 8 is a radially inwardly exciting sealing ring 8 and, for example, received in a circumferential annular groove 32 of the outer edge 6 of the throttle valve 4.
  • the sealing ring 8 protrudes from the annular groove 32 a bit far radially outward.
  • the outer diameter of the sealing ring 8 projecting from the annular groove 32 is preferably slightly larger than the inner diameter of the throttle valve seat 10 on the radially inner peripheral surface of the flow channel 14.
  • the inner diameter of the sealing ring 8 in the open or unloaded position of the throttle valve 4 according to Figure 2 slightly larger than the outer diameter of the groove bottom of the annular groove 32. This can occur, the unloaded sealing ring 8 has a corresponding geometry or bias.
  • the ends 22, 24 of the sealing ring 8 can move towards each other during a rotation of the throttle valve 4 from an open position according to Figure 2 in the closed position according to Figure 1 to to reduce the distance X (see Fig.3).
  • the inner diameter of the sealing ring 8 is urged against the groove bottom of the annular groove 32 at the radially outer edge 6 of the throttle valve 4 substantially without a gap.
  • the distance X may be greater than zero but also equal to zero in the closed position of the throttle valve 4 according to Figure 1, in the open or unloaded position, it is always greater than zero.
  • annular collars 28, 28 ' can not cooperate with the associated recesses 30, 30' together but contact each other end face and thereby compression of the sealing ring 8 is prevented in the circumferential direction, have the annular collars 28th , 28 'or the recesses 30, 30' preferably each have a run-on slope 34, as Figure 3 shows.
  • the sealing ring 8 is an outwardly exciting sealing ring and the throttle valve seat 10 on the radially inner peripheral surface 12 of the flow channel 14 also in one stationary annular groove 32 received perpendicular to the central axis 18. Furthermore, the outer diameter of the sealing ring 8 in the open or unloaded position of the throttle valve 4 according to FIG. 6 is preferably slightly smaller than the diameter of the annular groove 32 on the groove base.
  • the sealing ring 8 protrudes with its inner diameter a little way out of the annular groove 32 radially inward, wherein the protruding from the annular groove 32 inner diameter of the sealing ring 8, which then forms the throttle seat 10, in the open or unloaded position of the throttle valve 4 shown in FIG .6 is preferably slightly smaller than the outer diameter of the radially outer edge 6 of the throttle valve 8. This may occur, the sealing ring 8 has a corresponding geometry or bias.
  • the sealing ring is formed as in the preceding embodiment or as shown in Figure 3 and Figure 4. Then the ends 22, 24 of the sealing ring 8 move away from an open position according to Figure 6 in the closed position according to Figure 5 away from each other with a rotation of the throttle valve 4, wherein the outer diameter of the sealing ring 8 increases and radially outward against the groove bottom the annular groove 32 is preferably pressed substantially without gaps in order to increase the sealing effect. At the same time, the distance X is increased (see FIG. 3).
  • the sealing ring 8 is produced by plastic bending and heat treatment of a straight rod-shaped element. Due to the bending creates a pressure zone below the neutral zone and a tensile zone above the neutral zone. Then measured perpendicular to the ring plane thickness of the sealing ring 8 in the region of the pressure zone is greater than in the region of the tension zone.
  • the sealing ring 8 can be made by vertically separating rings of pipe, wherein the end faces of the sealing ring 8 are then machined and / or ground and / or honed or lapped, for example, and then lie in mutually parallel plane.
  • the material used for the sealing ring 8 is preferably a spring steel strip C75, CK60 or a chrome nickel steel no. 1.4310, no. 1.4571 or no. 1.4980.
  • the inner diameter 36 and the outer diameter 38 are preferably convexly convex.
  • the ends 22, 24 of the sealing ring 8 also engage wedge-shaped, ie the free ends 22, 24 of the sealing ring 8 each have complementary wedge surfaces which can slide on each other, but are spaced apart in the ground state.
  • any geometry with an undercut cross-section is conceivable in order to realize an overlap of the ends 22, 24 of the sealing ring 8 in the region of the ring interruption.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lift Valve (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

L'invention concerne un dispositif de papillon des gaz (1) comportant un carter (20) comprenant un canal d'écoulement (14) guidant un écoulement de fluide, et un papillon des gaz (4) pouvant pivoter autour d'un axe de papillon (2) et coopérant avec un siège de papillon (10) en position fermée pour régler une section d'écoulement destinée au fluide en fonction de la position de rotation du papillon des gaz (4). Au moins une bague d'étanchéité (8) est située entre le siège de papillon (10) et le papillon des gaz (4), les extrémités libres (22, 24) de cette bague formant une interruption (26). Selon l'invention, les extrémités libres (22, 24) de la bague d'étanchéité (8) situées dans la zone d'interruption (26) de ladite bague sont superposées l'une à l'autre.
PCT/DE2011/001571 2011-07-15 2011-08-10 Dispositif de papillon des gaz WO2013010518A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110107794 DE102011107794A1 (de) 2011-07-15 2011-07-15 Drosselklappeneinrichtung
DE102011107794.8 2011-07-15

Publications (2)

Publication Number Publication Date
WO2013010518A2 true WO2013010518A2 (fr) 2013-01-24
WO2013010518A3 WO2013010518A3 (fr) 2013-07-25

Family

ID=47425676

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2011/001571 WO2013010518A2 (fr) 2011-07-15 2011-08-10 Dispositif de papillon des gaz

Country Status (2)

Country Link
DE (1) DE102011107794A1 (fr)
WO (1) WO2013010518A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114857378A (zh) * 2021-02-04 2022-08-05 中国航发商用航空发动机有限责任公司 管接头密封结构、涡轮、燃气涡轮发动机以及管接头

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE539673C2 (en) * 2016-05-16 2017-10-31 Flowmecs Ab A butterfly valve disc arrangement
DE102019103691A1 (de) * 2019-02-14 2020-08-20 Bayerische Motoren Werke Aktiengesellschaft Abgas-Rückführ-Kühler für eine Brennkraftmaschine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006020718A1 (de) 2006-05-04 2007-11-08 Robert Bosch Gmbh Verfahren zur Herstellung einer Drosselklappeneinheit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290615A (en) * 1979-12-14 1981-09-22 International Telephone And Telegraph Corporation Butterfly valve
JPH01149549U (fr) * 1988-04-05 1989-10-17
JP4285267B2 (ja) * 2004-02-19 2009-06-24 株式会社デンソー 排気ガス再循環装置
DE102008027281A1 (de) * 2008-06-06 2009-12-24 Vat Holding Ag Regelventil

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006020718A1 (de) 2006-05-04 2007-11-08 Robert Bosch Gmbh Verfahren zur Herstellung einer Drosselklappeneinheit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114857378A (zh) * 2021-02-04 2022-08-05 中国航发商用航空发动机有限责任公司 管接头密封结构、涡轮、燃气涡轮发动机以及管接头

Also Published As

Publication number Publication date
WO2013010518A3 (fr) 2013-07-25
DE102011107794A1 (de) 2013-01-17

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