EP1183451B1 - Dispositif de rappel d'un papillon des gaz - Google Patents

Dispositif de rappel d'un papillon des gaz Download PDF

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Publication number
EP1183451B1
EP1183451B1 EP01919223A EP01919223A EP1183451B1 EP 1183451 B1 EP1183451 B1 EP 1183451B1 EP 01919223 A EP01919223 A EP 01919223A EP 01919223 A EP01919223 A EP 01919223A EP 1183451 B1 EP1183451 B1 EP 1183451B1
Authority
EP
European Patent Office
Prior art keywords
spring
stop
driver
housing
throttle
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP01919223A
Other languages
German (de)
English (en)
Other versions
EP1183451A1 (fr
Inventor
Klaus Kaiser
Uwe Hammer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1183451A1 publication Critical patent/EP1183451A1/fr
Application granted granted Critical
Publication of EP1183451B1 publication Critical patent/EP1183451B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction 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
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0277—Fail-safe mechanisms, e.g. with limp-home feature, to close throttle if actuator fails, or if control cable sticks or breaks

Definitions

  • the invention relates to a device for Resetting a throttle valve for the combustion air control an internal combustion engine in a defined emergency air position according to the preamble of claim 1.
  • Such a reset device is used in the event of failure the drive for the driver on the throttle valve shaft, the z. B. is an electric motor, the throttle valve in a defined rest position, the so-called emergency air or Emergency running position, reset to a minimum Throttle valve opening for the combustion air supply Internal combustion engine is ensured so that the latter in Idling or still running smoothly under minimal load.
  • the reset device according to the invention has the advantage that the freedom from torsional backlash in the emergency air position technically simple means is reliably achieved.
  • the Compensation spring can be made as a simple stamped part and is easy to assemble. The additional Manufacturing costs to achieve a reliable Freedom of play is minimal.
  • a clamp spring 13 is received, which as cylindrical coil spring formed and is arranged concentrically to the throttle valve shaft 11 and their spring ends 131 and 132 towards the throttle valve shaft 11 are turned.
  • 6 in a perspective view Clamp spring 13 to be seen is shown in FIG. 6 already biased so that the two inside directional spring ends 131, 132 cross and about run parallel to each other. From this bias a force results so that one between the spring ends 131, 132 introduced part is clamped.
  • the stop 14 in called the following housing stop 14 on the housing 10 and the Stop 15, hereinafter called driver stop 15, on Driver 12 set.
  • the housing stop 14th forming axial web in one piece with the housing 10 formed and protrudes axially from the bottom of the housing 10.
  • the driver stop 15 is in Fig.
  • the driver 12 of the drive for. B. the Electric motor, rotated in one direction or the other, so when the driver 12 rotates clockwise (with reference to FIG. 1) the spring end 131 of the clamp spring 13 and when the driver 12 rotates counterclockwise (with reference to FIG. 1) the spring end 132 of the clamp spring 13 taken away from the driver stop 15 and the Clamp spring 13 increasingly tensioned.
  • the drive fails, So z. B. the electric motor is de-energized, the Driver 12 by the restoring force of the clamp spring 13 turned back, in one case counter Clockwise (refer to Fig. 1) until the Spring end 131 and in the other case clockwise (based on Fig. 1) until the spring end 132 each strikes the housing stop 14.
  • the driver 12 takes the throttle valve shaft 11th entrained throttle valve 26 a defined position that so-called emergency air or emergency running position in which one defined opening of the throttle valve 26 is predetermined, so that the internal combustion engine has enough combustion air receives and still at idle or with minimal load runs smoothly.
  • This game is born for example by tolerances in the direction of rotation seen distance of the stop surfaces 16 and 17 on the Housing stop 14 on the one hand and on the driver stop 15 on the other hand, ie by tolerances in the direction of rotation seen width of the stops 14, 15 forming Axial webs, as well as by tolerances in the bending angle of the Spring ends 131, 132 so that they are not flat on the Stop surfaces 16 or on the stop surfaces 17 of the abut two stops 14, 15, but against them more or less are employed.
  • the spring ends 131, 132 are then, for example, only on the stop surfaces 16, 17 of the housing stop 14 or on the stop surfaces 16, 17 of the driver stop 15, and the driver 12 is in the emergency air position is not fixed without backlash.
  • the compensation spring 18 on the Housing stop 14 arranged and lies between the Stop surface 16 on the housing stop 14 and the spring end 131 of the clamp spring 13
  • the compensation spring 18 on the Driver stop 15 arranged and lies between the Stop surface 16 on the driver stop 15 and the spring end 131 of the spring clip 13.
  • the Bias of the compensation spring 18 is set so that ideally it is half the preload of the Clamp spring 13 in the emergency air position.
  • the 5 shown in perspective enlarged Compensation spring 18 a U-shaped spring clip 19 with a long leg 191 and a short leg 192 on. Both legs 191, 192 are via a crossbar 193 connected in one piece.
  • the long leg 191 is bent outwards at a distance from the crosspiece 193, wherein the kinked leg portion is a spring leaf 20 forms the between the stop surface 16 of the Housing stop 14 (Fig. 1 - 4) or des Driver stop 15 (Fig. 6-9) and the spring end 131st the clamp spring 13 with directed against the spring end 131 Preload is.
  • the compensation spring 18 is on the housing stop 14 (Fig. 1 - 4) or on the Driver stop 15 (Fig.
  • the stop surface 16 of the housing stop 14 or Driver stop 15 a spring stop 22 or 23 formed on which the spring leaf 20 at or near his free end is under tension.
  • the distance of the Spring stop 22 or 23 of the stop surface 16 of the Housing stop 14 or from the stop surface 16 of the Driver stop 15 also gives the area of Mobility of the spring leaf 20, so the travel of the Spring leaf 20 in front.
  • both are in the emergency air position Stops 14, 15 one above the other in the radial direction, and the Clamp spring 13 puts over both of them Stop surfaces 16 on one side and both Stop faces 17 on the other side of the Driver stop 15 and the housing stop 14 overlapping spring ends 131 and 132 the driver 12 on Housing 10 fixed.
  • the compensation spring presses 18 with its spring leaf 20 against the spring clip 13 and also generates a biasing force so that the driver 12 is biased in both directions and none Backlash of the driver 12 in the emergency air position can occur.
  • modified reset device for the Throttle valve 26 is opposite the reset device 1-4 still beyond what has already been described modified to the extent that it is different from the Reset device according to FIGS. 1-4 of the housing stop 14 not with a larger one, but with a smaller one
  • Radial distance from the housing axis 10 is arranged as the driver stop 15 from the throttle valve shaft 11, so that in the emergency air position of the driver stop 15 in Seen radially above the housing stop 14 lies.
  • FIG. 6 shows the one in FIG. 7 for better illustration - 9 reset device shown the assembly Driver 12, throttle valve shaft 11 rotatably thereon seated throttle valve 26 and clamp spring 13 represented in three dimensions.
  • the as from the driver 12 protruding axial web formed driver stop 15 carries the compensation spring 18, the spring leaf 20th between the spring end 131 of the clamp spring 13 and the Stop surface 16 lies on the driver stop 15.
  • the Spring leaf 20 is supported near its free end on the Driver 12 set spring stop 23.
  • the rigid short leg 192 of the U-shaped spring bracket 19th trained compensation spring 18 lies on the Stop surface 17 and between the spring leaf 20 and the Cross leg 193 of the spring clip 19 existing Leg section 191 'lies on the stop surface 16 of the Driver stop 15 each non-positively.
  • the mode of operation of the driver stop 15 arranged compensation spring 18 for bringing about a The driver 12 is free of play in the emergency air position as described above.
  • the operation of the compensation spring 18 is good at that 10 shown in the diagram.
  • Torque curve M of the reset device on the Throttle valve 26 as a function of the angle of rotation ⁇ Throttle valve shaft 11 partially smaller in the area Angle of rotation around the emergency air point 0 ° shown.
  • the strongly extended characteristic curve 24 represents the torque curve at maximum play between the stops 14, 15, that results in tolerance-related, in the direction of rotation seen greatest width of the housing stop 14th forming axial web and smallest width of the Driver stop 15 forming axial web or vice versa.
  • the weaker curve 25 represents the Torque curve with minimal play of the stops 14, 15 represents the smallest tolerances between the Stops 14, 15 results.

Landscapes

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

Claims (8)

  1. Dispositif de rappel d'un volet d'étranglement (26) pour la commande de l'air comburant alimentant un moteur à combustion interne dans une position définie de secours, comprenant un axe de volet d'étranglement (11) portant le volet d'étranglement (26) et monté en rotation dans un boítier (10),
    un organe d'entraínement (12) monté solidairement en rotation sur l'axe (11) du volet d'étranglement et assurant l'entraínement,
    et un ressort à crochets (13), précontraint, dont les extrémités (131, 132), tout en entourant en même temps une butée de boítier (14) solidaire du boítier (10) et une butée d'organe d'entraínement (15) fixée sur l'organe d'entraínement (12), avec des surfaces de butée (16, 17) opposées l'une de l'autre pour les butées (14, 15), définissent la position de secours du volet d'étranglement (26) à partir de laquelle le volet d'étranglement (26) peut être réglé en tournant l'organe d'entraínement (12),
    caractérisé par un ressort de compensation (18) avec une force de pré-contrainte opposée à la force développée par le ressort (13) à crochets, ce ressort compensateur étant installé entre une extrémité de ressort (131) du ressort à crochets (13) et une surface de butée (16) au niveau de l'une des deux butées (14, 15).
  2. Dispositif de rappel d'un volet d'étranglement selon la revendication 1,
    caractérisé en ce que
    les butées (14, 15) formées par des entretoises axiales, en saillie, respectivement du boítier (10) ou de l'organe d'entraínement (12), sont décalées radialement l'une par rapport à l'autre et s'étendent au moins sur la largeur axiale du ressort à crochets (13) en forme de ressort hélicoïdal de rotation, cylindrique, installé coaxialement à l'axe du volet d'étranglement (11),
    les surfaces de butée (16, 17) sont réalisées sur les faces de l'entretoise axiale, dirigées dans le sens de rotation et qui sont opposées l'une par rapport à l'autre et,
    les extrémités (131, 132) du ressort (13) tournées vers l'extérieur vers l'axe (11) du volet d'étranglement, dépassent chaque fois des surfaces de butée (16, 17) situées des mêmes côtés de l'entretoise axiale.
  3. Dispositif de rappel d'un volet d'étranglement selon les revendications 1 ou 2,
    caractérisé en ce que
    le ressort de compensation (18) est prévu sur l'une des butées (14, 15) et comporte un ressort-lame (20) monté en avant de la surface (16) de la butée (14, 15), ce ressort-lame étant fixé à une extrémité de lame à la butée (14, 15) et à l'autre ou à proximité de l'autre extrémité libre de la lame, il s'appuie avec pré-contrainte contre une butée de ressort (22, 23) à distance de la surface de butée (16) qui fixe la course du ressort-lame (20).
  4. Dispositif de rappel d'un volet d'étranglement selon la revendication 3,
    caractérisé en ce que
    le ressort de compensation (18) comporte un étrier de ressort (19) recourbé en forme de grand U, avec une branche longue et une branche courte (191, 192), ces branches étant reliées par une traverse (193),
    la branche longue étant repliée vers l'extérieur à une certaine distance de la traverse (193) et le segment de branche d'étrier (191') replié constitue le ressort-lame (20).
  5. Dispositif de rappel d'un volet d'étranglement selon la revendication 4,
    caractérisé en ce que
    le ressort de compensation (18) est appliqué sur la butée (14, 15) pour que la courte branche d'étrier (192) et le segment de branche d'étrier (191'), qui se situe en dessous du point de pliage, adjacent à la traverse (193), s'appuient sur les surfaces de butée (16, 17) opposées l'une par rapport à l'autre de la butée (14, 15), de préférence par une liaison par la force.
  6. Dispositif de rappel d'un volet d'étranglement selon l'une des revendications 3-5,
    caractérisé en ce que
    le ressort de compensation (18) est prévu sur la butée de boítier (15) et la butée de ressort (22) est réalisée sur le boítier (10) pour le ressort-lame (20).
  7. Dispositif de rappel d'un volet d'étranglement selon l'une des revendications 3-5,
    caractérisé en ce que
    le ressort de compensation (18) est réalisé sur la butée (15) de l'organe d'entraínement et la butée de ressort (22) pour le ressort-lame (20) est prévue sur l'organe d'entraínement (12).
  8. Dispositif de rappel d'un volet d'étranglement selon l'une des revendications 1 à 7,
    caractérisé en ce que
    la force de précontrainte du ressort-lame (20) du ressort de compensation (18) est égale à la moitié de la force de précontrainte du ressort à crochets (13) en position de secours de l'axe (11) du volet d'étranglement.
EP01919223A 2000-03-21 2001-03-20 Dispositif de rappel d'un papillon des gaz Expired - Lifetime EP1183451B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10013917 2000-03-21
DE10013917A DE10013917A1 (de) 2000-03-21 2000-03-21 Vorrichtung zur Rückstellung einer Drosselklappe
PCT/DE2001/001063 WO2001071173A1 (fr) 2000-03-21 2001-03-20 Dispositif de rappel d'un papillon des gaz

Publications (2)

Publication Number Publication Date
EP1183451A1 EP1183451A1 (fr) 2002-03-06
EP1183451B1 true EP1183451B1 (fr) 2003-03-12

Family

ID=7635728

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01919223A Expired - Lifetime EP1183451B1 (fr) 2000-03-21 2001-03-20 Dispositif de rappel d'un papillon des gaz

Country Status (7)

Country Link
US (1) US6568652B2 (fr)
EP (1) EP1183451B1 (fr)
JP (1) JP2003528250A (fr)
KR (1) KR20020005044A (fr)
AU (1) AU772215B2 (fr)
DE (2) DE10013917A1 (fr)
WO (1) WO2001071173A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10102775A1 (de) * 2001-01-23 2002-07-25 Bosch Gmbh Robert Vorrichtung zur Rückstellung eines Drehglieds
DE10102776A1 (de) 2001-01-23 2002-07-25 Bosch Gmbh Robert Vorrichtung zur Rückstellung eines Drehglieds
DE10202096A1 (de) * 2002-01-21 2003-07-24 Siemens Ag Drosselklappenstutzen
JP3750934B2 (ja) * 2002-02-25 2006-03-01 三菱電機株式会社 吸気絞弁装置
JP4831085B2 (ja) * 2008-02-06 2011-12-07 株式会社デンソー 内燃機関用の電子式スロットル装置
JP5357105B2 (ja) * 2010-05-19 2013-12-04 株式会社デンソー スロットル装置
FR3049673B1 (fr) * 2016-03-30 2018-11-23 Faurecia Systemes D'echappement Vanne de ligne d'echappement et procede de montage correspondant

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704635A (en) * 1971-06-01 1972-12-05 Phillip V Eshelman Throttle return spring redundancy system
US3785615A (en) * 1972-09-01 1974-01-15 Gen Electric Emergency trip throttle valve
DE4337184A1 (de) * 1993-10-30 1995-05-04 Pierburg Gmbh Drosselklappenstutzen
US5492097A (en) * 1994-09-30 1996-02-20 General Motors Corporation Throttle body default actuation
DE19735046A1 (de) * 1997-08-13 1999-04-22 Pierburg Ag Anordnung einer Klammerfeder
US6155533C1 (en) * 1999-01-29 2002-07-30 Visteon Global Tech Inc Default mechanism for electronic throttle control system
US6276664B1 (en) * 1999-11-19 2001-08-21 Eaton Corporation Worm driving a servo actuator with spring return and rotary valve employing same

Also Published As

Publication number Publication date
US6568652B2 (en) 2003-05-27
AU772215B2 (en) 2004-04-22
KR20020005044A (ko) 2002-01-16
DE10013917A1 (de) 2001-09-27
US20020162982A1 (en) 2002-11-07
AU4638501A (en) 2001-10-03
WO2001071173A1 (fr) 2001-09-27
JP2003528250A (ja) 2003-09-24
DE50100118D1 (de) 2003-04-17
EP1183451A1 (fr) 2002-03-06

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