WO2011032828A2 - Dispositif de réglage - Google Patents

Dispositif de réglage Download PDF

Info

Publication number
WO2011032828A2
WO2011032828A2 PCT/EP2010/062693 EP2010062693W WO2011032828A2 WO 2011032828 A2 WO2011032828 A2 WO 2011032828A2 EP 2010062693 W EP2010062693 W EP 2010062693W WO 2011032828 A2 WO2011032828 A2 WO 2011032828A2
Authority
WO
WIPO (PCT)
Prior art keywords
actuator
adjusting device
actuating member
rack segment
drive
Prior art date
Application number
PCT/EP2010/062693
Other languages
German (de)
English (en)
Other versions
WO2011032828A3 (fr
Inventor
Robert Ragogna
Original Assignee
Mahle International 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 Mahle International Gmbh filed Critical Mahle International Gmbh
Publication of WO2011032828A2 publication Critical patent/WO2011032828A2/fr
Publication of WO2011032828A3 publication Critical patent/WO2011032828A3/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
    • F02D9/12—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having slidably-mounted valve members; having valve members movable longitudinally of conduit
    • F02D9/14—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having slidably-mounted valve members; having valve members movable longitudinally of conduit the members being slidable transversely of conduit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/66—Lift valves, e.g. poppet valves
    • F02M26/67—Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators

Definitions

  • the present invention relates to a linear adjusting device for bidirectionally actuating an actuator, in particular in an internal combustion engine, preferably in a motor vehicle, having the features of the preamble of claim 1. Furthermore, the present invention relates to an engine equipped with such a positioning device and an associated use.
  • a linear adjusting device is known with the aid of which an actuator designed as a valve member can be actuated or adjusted bidirectionally.
  • the adjusting device has for this purpose an actuator for rotationally driving a drive pinion and a transmission which is drive-coupled on the input side with the drive pinion and the output side is drive-coupled with a linearly guided actuator, which in turn is drivingly connected to the actuator.
  • the transmission is designed such that it converts the input-side rotational movement of the drive pinion in an output-side linear movements of the actuator, to which the transmission has on the output side an output pinion, which meshes with a drive connected to the actuator rack segment.
  • the rack segment is formed on a separate coupling member which is movably coupled to the actuator.
  • a mushroom-shaped pin is formed at one end of the actuator, which engages in a T-shaped groove of the coupling member transversely to the direction of movement of the actuator.
  • the present invention is concerned with the problem of providing for an adjusting device of the type mentioned or for an internal combustion engine equipped therewith or an associated use improved or at least another embodiment, which are characterized in particular by a high reliability and by a low-cost structure.
  • the invention is based on the general idea to attach the rack segment fixed to the actuator and to guide the actuator linearly on both sides of the rack segment.
  • the two-sided guidance of the actuator results in a particularly stable, precise and reliable guidance for the actuator.
  • the immediate arrangement of the rack segment on the actuator ensures a direct and backlash-free force, which also supports a reliable function.
  • a support bracket may be provided which receives the transmission and on which the actuator is guided linearly on both sides of the rack segment.
  • a support bracket With the help of such a support bracket stable support points or management points can be realized for the leadership of the actuator.
  • a bearing bracket is attached, which has a bearing bush in which the actuating member is mounted linearly guided on a side facing away from the actuator side of the Zahnstangenseg- ment. With the help of such a bearing bush, a particularly intensive and stable longitudinal guide for the actuator can be realized.
  • 1 is a perspective view of an adjusting device
  • FIG. 2 is a sectional view of the adjusting device in the region of a rack segment
  • Fig. 3 is a perspective detail view of the adjusting device.
  • a linear actuating device 1 with the aid of which an actuator 2 symbolically indicated in FIG. 3 can be bidirectionally actuated, comprises an actuator 3 and a gearbox 4.
  • the actuator 3 is designed, for example, as an electric motor and serves to rotate Driving a drive pinion 5, which sits on a drive shaft 6 of the actuator 3 for this purpose.
  • the transmission 4 is drive-coupled on the input side with the drive pinion 5 and is drive-coupled on the output side with an actuator 7.
  • the actuator 7 is guided linearly and can be directly or indirectly coupled to the actuator 2 to operate this bidirectional.
  • Such bidirectional actuation comprises linear and rotary adjustment movements of the actuator 2 between two end positions.
  • the actuator 7 itself is driven via the gear 4 to linear adjustment movements.
  • a corresponding direction of movement of the actuating member 7 is indicated in the figures by a double arrow 8.
  • the transmission 4 can convert input-side rotational movements of the drive pinion 5, which are indicated in FIG. 3 by a rotary double arrow 9, into the output-side linear movements 8 of the actuating member 7.
  • the transmission 4 on the output side an output pinion 10, which meshes with a rack segment 1 1, which is drivingly connected to the actuator 7.
  • the transmission 4 has in the example shown two pairs of gears 12 and 13, namely an output-side gear pair 12 and an input-side gear pair 13.
  • the output-side gear pair 12 has the output gear 10 and a sector gear 14 which extends to less than 360 °. In the example shown, said sector gear 14 extends by about 90 °.
  • the toothed segment 14 has a significantly larger diameter than the output pinion 10. Accordingly, the toothed segment 14 has significantly more teeth with respect to the circumference than the output pinion 10.
  • the toothed segment 14 and the toothed segment 14 Drive sprockets 10 may be made integrally from one piece, in particular as an integral injection molded body.
  • the output pinion 10 and the toothed segment 14 are connected to one another in a rotationally fixed manner and thereby form a unit, namely the output-side gearwheel pair 12.
  • This output-side gearwheel pair 12 is rotatably mounted on an output shaft 15.
  • the input-side gear pair 13 has two different sized gear wheels, namely an input gear 16 which meshes with the drive pinion 5 and which has the larger diameter or the larger number of teeth, and an output gear 17 which has the smaller diameter and has the smaller number of teeth.
  • the wheels 16,17 of the input-side gear pair 13 are rotatably connected to each other, in particular integrally made of one piece. In any case, they form a unit, namely the input-side gear pair 13, and are rotatably mounted on an input shaft 18.
  • the rack segment 1 1 is fixedly arranged on the actuator 7, for example screwed or glued or welded. Accordingly, the rack segment 1 1 is designed with respect to the actuator 7 as a separate component. Alternatively, it is also possible to form the rack segment 1 1 integrally on the actuator 7.
  • the actuator 7 is guided linearly on both sides of the rack segment 1 1. On both sides means in this context with respect to the axial linear movement 8 axially before and axially after the rack segment 1 first In other words, the actuator 7 is axially spaced from the rack segment 1 1 on both sides of the rack segment 1 1 linearly guided.
  • the actuator 1 may be equipped with a support bracket 19. At this support bracket 19, the linear guide of the actuator 7 takes place on both sides of the rack segment 1 first The support bracket 19 also serves to receive the transmission. 4
  • the support bracket 19 has a bottom plate 20 and a side adjacent thereto, in particular at right angles thereof projecting side wall 21st the support bracket 19 has in the region of the bottom plate 20 has a passage opening 22 into which a bearing bush 23 is inserted.
  • the actuator 7 is mounted linearly guided on a the actuator 2 facing side of the rack segment 1 1.
  • a bearing bracket 24 may be attached to the support bracket 19.
  • the bearing bracket 24 is attached on the one hand to the side wall 21 and on the other hand to a mounting bracket 25 which is arranged with respect to the side wall 21 at the opposite end of the bottom plate 20.
  • a (further) bearing bush 26 is arranged, in which the actuating member 7 is also mounted linearly guided, on a side facing away from the actuator 2 side of the rack segment 1 first
  • This further bearing bush 26 may form a separate component with respect to the bearing bracket 24, which is fastened in a suitable manner to the bearing bracket 24, for example by means of a screw connection or by means of a welded connection.
  • the respective bushing 23 and 26 may be conveniently made of a different material than the bearing bracket 19.
  • the bearing bracket 19 may be made of a plastic, while for the bearing bushes 23 and 26, a metal material is preferred.
  • the actuator 3 is attached to the bearing bracket 19, namely on the side wall 21st
  • the side wall 21 may be provided on a side facing away from the bottom plate 20 side with a receptacle 27 into which the actuator 3 coaxially to its drive shaft 6 is inserted.
  • the side wall 21 includes a through hole 28 through which the drive shaft 6 can be pushed with it attached drive pinion 5 when the actuator 3 is inserted into the receptacle 27.
  • the bearing bracket 19 may have shafts 29, 30, for example, to receive the shafts 15, 18 of the transmission 4.
  • shafts 29, 30, for example, to receive the shafts 15, 18 of the transmission 4.
  • two mutually aligned shaft receptacles 29 are provided for the output shaft 15 and two further, mutually aligned shaft receptacles 30 for receiving the input shaft 18th
  • the bearing bracket 19 can be closed with a lid, not shown here, whereby they form with the lid enclosing the gear 4 housing.
  • the actuator 2 may preferably be a wastegate valve for bypassing a turbine or a turbine wheel of an exhaust gas turbocharger.
  • the adjusting device 1 for actuating a variable geometry of an exhaust gas turbocharger.
  • a modern exhaust gas turbocharger may be equipped with a variable turbine geometry.
  • a turbocharger may be equipped with a variable compressor geometry.
  • pivotable vanes can be adjusted by means of the adjusting device 1 via a corresponding actuator 2.
  • adjusting device 1 in internal combustion engines, especially in motor vehicles, are for example a fresh air valve or an exhaust valve or an exhaust gas recirculation valve or a flap arrangement, which may be arranged on the fresh air side or on the exhaust side.

Landscapes

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

Abstract

L'invention concerne un dispositif de réglage linéaire (1) pour l'actionnement bidirectionnel d'un organe d'actionnement (2), notamment dans un moteur à combustion interne, d'un véhicule à moteur de préférence, comportant un entraînement de commande (3) pour l'entraînement rotatif d'un pignon d'entraînement (5), et un engrenage accouplé en entraînement côté entrée avec le pignon d'entraînement (5) et accouplé en entraînement côté sortie avec un organe d'actionnement (7) guidé linéairement, relié ou pouvant être relié directement ou indirectement en entraînement, pour sa part, avec l'organe d'actionnement (2). L'engrenage (4) transforme le mouvement rotatif d'entrée (9) du pignon d'entraînement (5) en un mouvement linéaire de sortie (8) de l'organe d'actionnement (7) et présente côté sortie un pignon de sortie (10) s'engrenant avec un segment de crémaillère (11) relié en entraînement à l'organe d'actionnement (7). Une sécurité de fonctionnement accrue est obtenue par disposition fixe du segment de crémaillère (11) sur l'organe d'actionnement (7) et guidage linéaire de l'organe d'actionnement (7) des deux côtés du segment de crémaillère (11).
PCT/EP2010/062693 2009-09-17 2010-08-31 Dispositif de réglage WO2011032828A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009041962.4 2009-09-17
DE102009041962A DE102009041962A1 (de) 2009-09-17 2009-09-17 Stellvorrichtung

Publications (2)

Publication Number Publication Date
WO2011032828A2 true WO2011032828A2 (fr) 2011-03-24
WO2011032828A3 WO2011032828A3 (fr) 2011-07-21

Family

ID=43127444

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/062693 WO2011032828A2 (fr) 2009-09-17 2010-08-31 Dispositif de réglage

Country Status (2)

Country Link
DE (1) DE102009041962A1 (fr)
WO (1) WO2011032828A2 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1647698A2 (fr) 2004-10-14 2006-04-19 Delphi Technologies, Inc. Transmission à pignon et crémaillère pour une soupape de recirculation de gaz d'échappement a teton

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6382195B1 (en) * 2000-02-18 2002-05-07 Borgwarner Inc. Exhaust gas recirculation system for an internal combustion engine having an integrated valve position sensor
US6435169B1 (en) * 2000-03-17 2002-08-20 Borgwarner Inc. Integrated motor and controller for turbochargers, EGR valves and the like
US7017884B2 (en) * 2004-01-08 2006-03-28 Woodward Governor Company Fluid metering valve
ITMI20050407A1 (it) * 2005-03-14 2006-09-15 Dellorto Spa Valvola per il ricircolo dei gas di scarico in motori a combustione interna con azionamento a motore elettrico e rocchetto-cremagliera

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1647698A2 (fr) 2004-10-14 2006-04-19 Delphi Technologies, Inc. Transmission à pignon et crémaillère pour une soupape de recirculation de gaz d'échappement a teton

Also Published As

Publication number Publication date
DE102009041962A1 (de) 2011-04-21
WO2011032828A3 (fr) 2011-07-21

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