WO2004087485A1 - Direction a cremaillere - Google Patents

Direction a cremaillere Download PDF

Info

Publication number
WO2004087485A1
WO2004087485A1 PCT/EP2004/002105 EP2004002105W WO2004087485A1 WO 2004087485 A1 WO2004087485 A1 WO 2004087485A1 EP 2004002105 W EP2004002105 W EP 2004002105W WO 2004087485 A1 WO2004087485 A1 WO 2004087485A1
Authority
WO
WIPO (PCT)
Prior art keywords
rack
guide roller
pressure piece
bearing
pinion
Prior art date
Application number
PCT/EP2004/002105
Other languages
German (de)
English (en)
Inventor
Uwe Abraham
Peter Jennes
Original Assignee
Ina-Schaeffler 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 Ina-Schaeffler Kg filed Critical Ina-Schaeffler Kg
Publication of WO2004087485A1 publication Critical patent/WO2004087485A1/fr

Links

Classifications

    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/26—Racks
    • F16H55/28—Special devices for taking up backlash
    • F16H55/283—Special devices for taking up backlash using pressure yokes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D3/00—Steering gears
    • B62D3/02—Steering gears mechanical
    • B62D3/12—Steering gears mechanical of rack-and-pinion type
    • B62D3/123—Steering gears mechanical of rack-and-pinion type characterised by pressure yokes
    • 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
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/44—Needle bearings
    • F16C19/46—Needle bearings with one row or needles
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/546—Systems with spaced apart rolling bearings including at least one angular contact bearing
    • F16C19/547—Systems with spaced apart rolling bearings including at least one angular contact bearing with two angular contact rolling 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
    • F16C23/06—Ball or roller bearings
    • F16C23/08—Ball or roller bearings self-adjusting
    • F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
    • F16C23/084—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface sliding on a complementary spherical surface
    • 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
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/002—Elastic or yielding linear bearings or bearing supports
    • 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
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/045—Ball or roller bearings having rolling elements journaled in one of the moving parts
    • 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
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/12—Arrangements for adjusting play
    • F16C29/123—Arrangements for adjusting play using elastic means
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/20—Land vehicles
    • F16C2326/24—Steering systems, e.g. steering rods or columns
    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/26—Racks
    • F16H55/28—Special devices for taking up backlash
    • F16H55/283—Special devices for taking up backlash using pressure yokes
    • F16H55/285—Special devices for taking up backlash using pressure yokes with rollers or balls to reduce friction

Definitions

  • the invention relates to a rack and pinion steering for a motor vehicle with a steering housing in which a rack is mounted longitudinally displaceable, and a meshing with the rack pinion and a pressure piece, which is arranged on the side facing the engagement with the pinion side of the rack and by means of a spring is biased in the axial direction against the rack, wherein the pressure piece in its interior has a contour of the rack adapted, rotatable guide roller on which rests the rack.
  • Such rack and pinion steering systems are already known from the prior art for a long time.
  • the rack In these steering the rack is guided in the longitudinal direction displaceable in a steering housing.
  • a rotatably mounted in the steering housing pinion engages the toothing of the rack and causes upon rotation of the rotatably connected to the pinion steering column, the lateral displacement of the rack, which in turn leads via tie rods and stub axles to a pivoting of the steered wheels of the motor vehicle.
  • the engagement of the pinion in the rack is held backlash by a pressure applied to the toothed rack against the pinion presses under spring tension the rack against the pinion.
  • the pressure piece must be able to transmit the required pressing force and, on the other hand, provide a bearing surface which does not cause appreciable frictional forces and significant wear when the rack is displaced on the pressure piece.
  • Such a gattu ⁇ gswash trained pressure piece is from the DE 82 03 943 U1 previously known.
  • the rolling friction between the rack and pressure piece is realized in such a way that a contour of the rack adapted leadership role is taken in the pressure piece via a rolling bearing.
  • This guide roller is arranged on a support shaft, which is received with its two outer ends in the pressure piece.
  • this object is achieved by the characterizing part of claim 1 in conjunction with the preamble thereof, that the guide roller is held on both sides on its outer sides in the radial direction above and below its axis of rotation by a respective radial and axial forces receiving rolling bearing whose outer rings a spherical Having outer contour, which are taken up again in each case in a reversed spherical receiving bore tion of the pressure piece.
  • the advantage of the solution according to the invention is that through the side arranged storage of the guide roller in the pressure piece can be saved considerably radial space. Another advantage is due to the fact that radial and axial forces are much better absorbable by the inventive type of storage of the guide roller and the role can be employed radially and axially backlash. This is important because during transmission of the movement of the pinion forces act on the teeth of the rack having a first component in the direction of the axis of the rack and a second force component in the direction of pressure piece. Ideally, this second force component is oriented at right angles to the first force component.
  • this second component decomposes into a third axially directed subcomponent, which can be easily picked up by the rolling bearing arranged according to the invention.
  • Another significant advantage of the invention is that a malposition of the support shaft of the guide roller, due to non-aligned holes in the pressure piece, can be compensated. This is done in such a way that when assembling the pressure piece this malposition is correctable by moving one of the bearing outer rings with its spherical outer contour in the pressure piece.
  • the rolling bearings are designed as a single-row bearing inclined to the axis of rotation main load direction such as angular needle bearings, angular contact ball bearings, tapered roller bearings or the like.
  • the inner and / or the outer bearing ring are formed as thin-walled produced without cutting. This production makes a particularly cost-effective production in a variety of variants in a simple manner possible.
  • the inner raceway may be formed by a triangular ring whose inclined surface constitutes the raceway for the rolling elements.
  • Another advantage of a bearing according to the invention according to claim 5 is when the inner raceway is formed by an inclined surface of the guide roller. In this case can be dispensed cost-saving on this bearing ring.
  • the guide roller should be formed in two parts, it being provided according to claim 7, that the guide roller is arranged on a support shaft and a slotted spacer ring is arranged in a parting plane.
  • these spacers are to be formed with different thickness and assigned according to a measurement corresponding guide rollers. In this way it is possible to easily compensate occurring manufacturing tolerances between pressure piece, guide roller and roller bearing.
  • a receiving bore of the support shaft in the guide roller has a stepped diameter.
  • Fig. 1, 2 and 3 a longitudinal section and a partial longitudinal section through an inventively mounted guide roller and
  • Fig. 4 is a longitudinal section through a guide roller according to the prior art.
  • FIG. 1 shows a housing 1, in which a pinion 2, which merges into a steering shaft 3, is mounted.
  • a pinion 2 In the toothing of the pinion 2 engages the toothing of a rack 4, which extends transversely to the pinion 2.
  • a pressure piece 5 On the engagement side of the pinion 2 with the rack 4 opposite side of the rack 4, a pressure piece 5 is arranged, which essentially supports the force transmitted from the pinion 2 to the rack 4 force.
  • the pressure piece 5 is housed in a non-designated receiving bore of the housing 1. It is biased by a between the pressure piece 5 and a rigidly connected to the housing 1 cover 6 arranged spring 7 in the direction of the rack 4.
  • a guide roller 8 is housed, which is held on two axle formed as a deep groove ball bearing 9 on a support shaft 10.
  • the support shaft 10 in turn is secured with its two opposite ends in the pressure piece 5 in receiving holes 11. If these two opposite receiving bores 11 lie in one plane, that is to say they are in alignment with one another, then it can be seen that there is a linear contact between the rack 4 and the guide roller 8 because their respective faces are in contact with each other. pressure surfaces 4.1 and 8.1. However, if the two opposing receiving bores 11 are not in alignment, it is easy to see that no linear contact is possible between the rack 4 and the guide roller 8, but only pointy one-sided contact can take place or if there is an increased permanent tilting moment load when the rack 4 is displaced. This is where the invention begins.
  • the guide roller 13 is formed of two spaced-apart part rollers 13.1, 13.2. These sub-rollers 13.1 and 13.2 are each provided with a continuous receiving bore 14 into which a connecting axle 15 is inserted. Between the two sub-rollers 13.1, 13.2 a slotted spacer ring 16 is snapped onto the support shaft 15.
  • the guide roller 13 according to the invention is held in the pressure member 12 on both sides with its outer sides via a radial and axial al phenomenon receiving angular needle bearing 17. This consists of an outer and an inner bearing ring 17.1, 17.2, between which run on unspecified raceways in a cage 17.3 guided bearing needles 17.4.
  • the helical needle bearing 17 is formed so that the bearing rings 17.1, 17.2 opposite to its axis of rotation 18, which is also the axis of rotation of the guide roller 13, at an angle which is smaller than 90 °, that are inclined.
  • the main load direction of the two angular needle bearings 17 is therefore inclined relative to the axis of rotation 18, wherein the normal of the raceways meet in the axis of rotation 18, as the figure shows.
  • the outer side of the outer bearing ring 17.1 is provided with a spherical, ie convex outer contour to which an opposing matching ie, concave contour of the receiving bore 12.1 must be given in the pressure piece 12.
  • the outer bearing ring has the spherical ge outer contour, so that the axes of rotation of angular contact ball bearing 17 and guide roller 13 can match. If these match and the outer bearing ring 17.1 has adapted to the given positions, no movement takes place during the operation of the steering. The set friction thus remains constant during all operating conditions over the entire service life within narrow limits at a low level.
  • the figure 1 is further removed that over the axial thickness of the spacer ring 16 manufacturing tolerances can be compensated. Also can be acted upon the bias of the angular needle bearings 17. This is increased when a spacer ring 16 is used with greater axial strength, so that the two sub-rollers 13.1, 13.2 of the guide roller 13 are further moved away from each other.
  • FIGS. 2 and 3 slightly different variants of a helical needle bearing 17 are shown.
  • the inner bearing ring 17.5 is triangular in shape, with its inclined surface forms the track for the guided in the cage 17.3 bearing needles 17.4.
  • the raceway for the bearing needles 17.4 guided in the cage 17.3 is formed by an inclined running surface 13.1.1, 13.2.1 of the two part rollers 13.1, 13.2.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Transmission Devices (AREA)

Abstract

Selon l'invention, un élément de pression (12) destiné à une direction à crémaillère d'un véhicule automobile abrite un galet de guidage (13). Ce dernier est maintenu respectivement, sur ses deux côtés extérieurs, dans le sens radial au-dessus et au-dessous de son axe de rotation (18), par un palier à roulement (17) qui absorbe les forces radiales et axiales et dont les chemins de roulement extérieur (17.1) présentent un contour extérieur sphérique. Les chemins de roulement extérieur sont eux-mêmes logés respectivement dans un orifice de logement (12.1), présentant une forme inversée, de l'élément de pression (12).
PCT/EP2004/002105 2003-03-31 2004-03-03 Direction a cremaillere WO2004087485A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10314358A DE10314358B4 (de) 2003-03-31 2003-03-31 Zahnstangenlenkung
DE10314358.0 2003-03-31

Publications (1)

Publication Number Publication Date
WO2004087485A1 true WO2004087485A1 (fr) 2004-10-14

Family

ID=33103133

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/002105 WO2004087485A1 (fr) 2003-03-31 2004-03-03 Direction a cremaillere

Country Status (2)

Country Link
DE (1) DE10314358B4 (fr)
WO (1) WO2004087485A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006024183A1 (fr) * 2004-09-02 2006-03-09 Belimo Holding Ag Entrainement lineaire
US20140326913A1 (en) * 2013-05-06 2014-11-06 Michael Führer Arrangement for operating a shut-off valve having a tapered plug

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006043578A1 (de) * 2006-09-16 2008-03-27 Zf Lenksysteme Gmbh Vorrichtung zum Andrücken einer Zahnstange an ein mit der Zahnstange in Eingriff stehendes Ritzel
DE102008041068A1 (de) 2008-08-07 2010-02-11 Zf Lenksysteme Gmbh Vorrichtung zum Andrücken einer Zahnstange
DE102011012203A1 (de) * 2011-02-23 2012-08-23 Pierburg Gmbh Stellvorrichtung zur Verstellung von Stellgliedern in einer Brennkraftmaschine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1537507A (fr) * 1967-09-21 1968-08-23 Skf Svenska Kullagerfab Ab Roulement à rouleaux ou à aiguilles obliques
US4189167A (en) * 1976-12-20 1980-02-19 Nadella Steering head set assembly
DE2913641A1 (de) * 1979-04-05 1980-10-16 Schaeffler Ohg Industriewerk Lagerung der zahnstange einer zahnstangenlenkung fuer kraftfahrzeuge
DE8203943U1 (de) * 1981-02-24 1982-07-01 RIV-SKF Officine di Villar Perosa S.p.A., 10123 Torino Lenkgetriebe fuer kraftfahrzeuge mit einem gegendruckelement fuer die zahnstange
US4651585A (en) * 1984-10-02 1987-03-24 Riv-Skf Officine Di Villar Perosa S.P.A. Steering box for a motor vehicle
JPH1134886A (ja) * 1997-07-16 1999-02-09 Toyoda Mach Works Ltd 操舵装置
DE10124663A1 (de) * 2001-05-18 2002-11-21 Ina Schaeffler Kg Selbsteinstellendes Kupplungsausrücklager

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
US3762783A (en) * 1972-06-15 1973-10-02 Gen Motors Corp Self adjusting take up bearing
US3826546A (en) * 1973-05-21 1974-07-30 Gen Motors Corp Self-adjusting thrust bearing assembly
SE8903688L (sv) * 1989-07-24 1991-01-25 Torrington Co Sjaelvinstaellande lager
US5983742A (en) * 1998-02-05 1999-11-16 Oiles America Corporation Rack and pinion steering device with split roller rack bar support
US6315458B1 (en) * 1998-06-19 2001-11-13 Nsk Ltd. Roller bearing

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1537507A (fr) * 1967-09-21 1968-08-23 Skf Svenska Kullagerfab Ab Roulement à rouleaux ou à aiguilles obliques
US4189167A (en) * 1976-12-20 1980-02-19 Nadella Steering head set assembly
DE2913641A1 (de) * 1979-04-05 1980-10-16 Schaeffler Ohg Industriewerk Lagerung der zahnstange einer zahnstangenlenkung fuer kraftfahrzeuge
DE8203943U1 (de) * 1981-02-24 1982-07-01 RIV-SKF Officine di Villar Perosa S.p.A., 10123 Torino Lenkgetriebe fuer kraftfahrzeuge mit einem gegendruckelement fuer die zahnstange
US4651585A (en) * 1984-10-02 1987-03-24 Riv-Skf Officine Di Villar Perosa S.P.A. Steering box for a motor vehicle
JPH1134886A (ja) * 1997-07-16 1999-02-09 Toyoda Mach Works Ltd 操舵装置
DE10124663A1 (de) * 2001-05-18 2002-11-21 Ina Schaeffler Kg Selbsteinstellendes Kupplungsausrücklager

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 05 31 May 1999 (1999-05-31) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006024183A1 (fr) * 2004-09-02 2006-03-09 Belimo Holding Ag Entrainement lineaire
US20140326913A1 (en) * 2013-05-06 2014-11-06 Michael Führer Arrangement for operating a shut-off valve having a tapered plug
US10385979B2 (en) 2013-05-06 2019-08-20 Magdeburger Industriearmatur-Manufaktur GmbH Arrangement for operating a shut-off valve having a tapered plug

Also Published As

Publication number Publication date
DE10314358B4 (de) 2013-04-04
DE10314358A1 (de) 2004-11-11

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