DE2054034B2 - Mounting for shafts of impeller hubs - has twin caged ball bearings and internal sprung contact system - Google Patents

Mounting for shafts of impeller hubs - has twin caged ball bearings and internal sprung contact system

Info

Publication number
DE2054034B2
DE2054034B2 DE2054034A DE2054034A DE2054034B2 DE 2054034 B2 DE2054034 B2 DE 2054034B2 DE 2054034 A DE2054034 A DE 2054034A DE 2054034 A DE2054034 A DE 2054034A DE 2054034 B2 DE2054034 B2 DE 2054034B2
Authority
DE
Germany
Prior art keywords
shaft
ring
bearing
spacer
wing
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.)
Pending
Application number
DE2054034A
Other languages
German (de)
Other versions
DE2054034A1 (en
Inventor
Kurt 8520 Erlangen Beck
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE2054034A priority Critical patent/DE2054034B2/en
Publication of DE2054034A1 publication Critical patent/DE2054034A1/en
Publication of DE2054034B2 publication Critical patent/DE2054034B2/en
Pending legal-status Critical Current

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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
    • F01D17/162—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D7/00—Rotors with blades adjustable in operation; Control thereof
    • 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
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—Ball or roller bearings
    • F16C25/08—Ball or roller bearings self-adjusting
    • F16C25/083—Ball or roller bearings self-adjusting with resilient means acting axially on a race ring to preload the bearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05D2260/74—Adjusting of angle of incidence or attack of rotating blades by turning around an axis perpendicular the rotor centre line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05D2260/76—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism using auxiliary power sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05D2260/79—Bearing, support or actuation arrangements therefor
    • 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
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
    • F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
    • 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
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/20—Application independent of particular apparatuses related to type of movement
    • F16C2300/28—Reciprocating movement
    • 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
    • F16C2360/00—Engines or pumps
    • F16C2360/46—Fans, e.g. ventilators

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of The Bearing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A shaft mounting for impeller hubs has two caged ball bearings, one of which is situated between the shaft end and a safety ring, the other of which is situated between the shaft shoulder and two or more plate springs holding it in tension against a locking ring. The inner and outer rings of the bearing cage are in contact with distance rings and additional outer and inner rings of bearing cage are in contact with the plate spring and a distance ring respectively. The plate springs are connected to the locking ring by a spacer sleeve. Gaskets are fitted between the distance rings and the shaft shoulders. Ball bearing cage is of the tapered ball bearing type.

Description

Die Erfindung betrifft die Flügelschaftlagerung für Räder, bei denen der Schaft jedes Flügels in einer radial durchgehenden Bohrung des Nabenkörpers in zwei Kugellagern verdrehbar gelagert ist.The invention relates to the wing shaft storage for wheels, in which the shaft of each wing in a radial through hole of the hub body is rotatably mounted in two ball bearings.

Um bei derartigen Lagerungen Lagerschäden, insbesondere bei stillstehendem Ventilator und laufendem Nachbarventilator, zu vermeiden, ist es notwendig, daß die Lager stets unter Vorspannung bleiben, und zwar auch bei wechselnden Temperaturen. Die Aufgabe der vorliegenden Erfindung besteht demgemäß im Speziellen darin, eine schwingungsunempfindliche und betriebssichere Lagerung verstellbarer Flügel zu schaffen, soIn order to avoid bearing damage in such bearings, especially when the fan is at a standstill and the fan is running To avoid a neighboring fan, it is necessary that the bearings always remain under preload even with changing temperatures. The object of the present invention is accordingly in particular in creating a vibration-insensitive and reliable storage of adjustable blades, so

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß ein Kugellager zwischen dem Schaftende und einem in einer Ringnut der Bohrung eingesetzten Sicherungsring und das andere Lager zwischen einer Schaftschulter und zwei oder mehreren sich ebenfalls auf dem Sicherungsring abstützenden Tellerfedern in axialer Richtung verspannt ist. Hierbei kann der Außenring des ersten Lagers über einen Distanzring am Sicherungsring und der Innenring über einen Distanzring an einer auf dem Schaftende aufgeschraubten Mutter abgestützt sein. Der Außenring des zweiten Lagers kann dann über die Tellerfedern und ein Distanzrohr ebenfalls am Sicherungsring und der Innenring über einen Distanzring auf der Schaftschulter abgestützt sein.This object is achieved in that a ball bearing between the shaft end and a retaining ring inserted in an annular groove of the bore and the other bearing between a Shank shoulder and two or more disc springs also supported on the retaining ring in is braced in the axial direction. Here, the outer ring of the first bearing can use a spacer ring on the circlip and the inner ring screwed onto the end of the shaft via a spacer ring Mother be supported. The outer ring of the second bearing can then over the plate springs and a spacer tube also supported on the retaining ring and the inner ring via a spacer ring on the shaft shoulder be.

Diese Lösung hat den Vorteil, daß man durch Verwendung verhältnismäßig weicher Tellerfedern eine sichere Vorspannung über einen großen Toleranzbereich erreichen kann, so daß Herstellungsungenauigkeiten überbrückt werden können. Mit Hilfe der Änderung der Federvorspannung kann f.ogar erreicht werden, daß die Außenflächen der an den Flügelschäften angeschweißten Flügelteller bei Montage gleichen Abstand von der Radmitte erhalten. Dies hat den Vorteil, daß das Flügelrad nicht mehr im ganzen gewuchtet werden muß. Die Konstruktion hat weiterhin den Vorteil, daß durch das Abfangen der Fliehkräfte mit einem Sicherungsring in der Nabe, z. B. aus Grauguß, eine glatt durchgehende Bohrung verwendet werden kann, was die Bearbeitung sehr vereinfacht. Außerdem hat die Konstruktion den Vorteil, daß überwiegend Normteile oder sonst gebräuchliche Teile, die leicht erhältlich sind, verwendet werden können.This solution has the advantage that you can use relatively soft disc springs a safe Preload can reach over a large tolerance range, so that manufacturing inaccuracies can be bridged. By changing the spring preload, it can even be achieved that the outer surfaces of the welded to the wing shafts The wing plate has the same distance from the center of the wheel during assembly. This has the advantage that the impeller no longer has to be balanced as a whole. The construction also has the advantage that by intercepting the centrifugal forces with a locking ring in the hub, e.g. B. made of gray cast iron, one smooth through hole can be used, which greatly simplifies machining. In addition, the Construction has the advantage that predominantly standard parts or other common parts that are easily available, can be used.

Mit Vorteil werden zwischen den Distanzringen und den Käfigen noch Dichtungsringe angeordnet, mit denen das Austreten von Fett und die Korrosion der Wälzlager verhindert werden kann. Damit die auftretenden hohen Fliehkräfte sicher übertragen werden können, ist es ferner von Vorteil, das zwischen Schaftende und Sicherungsring angeordnete Wälzlager als Schrägkugellager auszuführen.Sealing rings are also advantageously arranged between the spacer rings and the cages, with which the leakage of grease and corrosion of the rolling bearings can be prevented. So that the occurring high centrifugal forces can be safely transmitted, it is also advantageous that between the shaft end and circlip arranged rolling bearings as angular contact ball bearings.

An Hand einer Zeichnung sei die Erfindung näher erläutert.The invention will be explained in more detail with the aid of a drawing.

In einer Nabe 19 aus Grauguß mit glatter, durchgehender Bohrung ist ein Schaft 1 drehbar in zwei Kugellagern, und zwar dem Schrägkugellager 9 und dem Rillenkugellager 15, drehbar gelagert. Der Schal ι ist durch eine an sich bekannte Verstellvorrichtung um seine Längsachse verdrehbar. Die Verstellvorrichtung besteht aus einem Verstellhebel 2, der am Ende des Schaftes 1 angeordnet ist und mit einer Sicherungsscheibe 5 gesichert ist. Der Verstellhebel 2 wird über einen Verstellbolzen 3 und einen Gleitstein 4 in an sich bekannter Weise bewegt.In a hub 19 made of gray cast iron with a smooth, continuous bore, a shaft 1 is rotatable in two ball bearings, namely the angular contact ball bearing 9 and the deep groove ball bearing 15, rotatably mounted. The scarf ι is through an adjusting device known per se rotatable about its longitudinal axis. The adjustment device consists from an adjusting lever 2, which is arranged at the end of the shaft 1 and with a locking washer 5 is secured. The adjusting lever 2 is known per se via an adjusting bolt 3 and a sliding block 4 Moved wisely.

An dem von der Radachse abgewandten Ende des Schaftes ist eine Tragplatte 20 angeschweißt, auf der ein nich«. gezeigter Ventilatorflügel angeschraubt werden kann.At the end of the shaft facing away from the wheel axle, a support plate 20 is welded, on which a nich «. The fan blades shown must be screwed on can.

Auf dem dem Radinnem zugewandten Ende la des Schaftes 1 ist eine Mutter 6 aufgeschraubt, die durch ein Sicherungsblech 6 gesichert werden kann. Die bei rotierendem Rad in Richtung des Pfeils 21 wirkenden Fliehkräfte werden von dieser Mutter 6 über Distanzring 22, Dichtungsring 8, Innenring 96, Kugeln 9c, Außenring 9a des Lagers 9, Dichtungsring 10 und Distanzring 11 an einen Sicherungsring 12 übertragen, der in einer Ausnehmung der Nabe, fest und gegen axiale Verschiebung gesichert, untergebracht ist. Die Vorspannung des Lagers 9 ist dabei durch die Mutter 6 regulierbar.On the end of the shaft 1 facing the wheel interior la a nut 6 is screwed through a locking plate 6 can be secured. Acting in the direction of arrow 21 when the wheel is rotating Centrifugal forces are exerted by this nut 6 via spacer ring 22, sealing ring 8, inner ring 96, balls 9c, Transfer outer ring 9a of bearing 9, sealing ring 10 and spacer ring 11 to a retaining ring 12, which is housed in a recess in the hub, firmly and secured against axial displacement. the The preload of the bearing 9 can be regulated by the nut 6.

Auf den Sicherungsring 12 stützt sich außerdem ein Distanzrohr 13 ab, von dem die Kräfte über eine oder mehrere weiche Tellerfedern 14 auf den Außenring 15a des Rillenkugellagers 15 übertragen werden. Über die Kugeln 15c und den Innenring 156, Dichtungsring 16 und Distanzring 17 läuft dann der Kraftfluß zur Schulter 16 des Schaftes 1. Durch geeignete Wahl der Tellerfedern 14 läßt sich dabei die auf das Lager 15 auch im Stillstand wirkende Vorspannung einstellen. Dabei kann man, wenn man auf Grund der flachen Federcharakteristik geringfügige Abweichungen der Vorspannkraft zuläßt, die Lage der Tragplatte korrigieren, um Fertigungstoleranzen auszugleichen. Das obere Lager 15 ist außerdem noch gegen das Eindringen von Schmutz oder Feuchtigkeit durch einen Filzring 18 geschützt. A spacer tube 13 is also supported on the securing ring 12, from which the forces via an or several soft disc springs 14 are transferred to the outer ring 15a of the deep groove ball bearing 15. About the Balls 15c and the inner ring 156, sealing ring 16 and spacer ring 17 then run the power flow to the shoulder 16 of the shaft 1. By a suitable choice of the disc springs 14 can be on the bearing 15 in the Set standstill acting pre-tension. You can, if you because of the flat spring characteristics slight deviations in the pre-tensioning force allow correcting the position of the support plate in order to Compensate for manufacturing tolerances. The upper bearing 15 is also still against the penetration of Dirt or moisture protected by a felt ring 18.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (5)

Patentansprüche: v^Claims: v ^ 1. Flügelschaftlagerung für Räder, bei denen der Schaft jedes Flügels in einer radial durchgehenden Bohrung des Nabenkörpers in zwei Kugellagern verdrehbar gelagert ist, dadurch gekennzeichnet, daß ein Kugellager (9) zwischen dem Schaftende (la) und einem in einer Ringnut der Bohrung eingesetzten Sicherungsring (12) und das andere Lager (15) zwischen einer Schaftschulter (16) und zwei oder mehreren sich ebenfalls auf dem Sicherungsring (12) abstützenden Tellerfedern (14) in axialer Richtung verspannt ist.1. Wing shaft storage for wheels, in which the shaft of each wing in a radially continuous The bore of the hub body is rotatably mounted in two ball bearings, characterized in that that a ball bearing (9) between the shaft end (la) and one in an annular groove of the Hole inserted circlip (12) and the other bearing (15) between a shaft shoulder (16) and two or more disc springs (14) also supported on the retaining ring (12) is braced in the axial direction. 2. Flügelschaftlagerung nach Anspruch 1, dadurch gekennzeichnet, daß der Außenring (9a) des ersten Lagers (9) über einen Distanzring (11) am Sicherungsring (12) und der Innenring (96) über einen Distanzring (22) an einer auf dem Schaftende (la) aufgeschraubten Mutter (6) abgestützt ist.2. wing shaft bearing according to claim 1, characterized in that the outer ring (9a) of the first bearing (9) via a spacer ring (11) on the retaining ring (12) and the inner ring (96) via a spacer ring (22) on one on the shaft end (la) screwed nut (6) is supported. 3. Flügelschaftlagerung nach Anspruch 1, dadurch gekennzeichnet, daß der Außenring (15a) des zweiten Lagers (15) über die Tellerfedern (14) und ein Distanzrohr (13) am Sicherungsring (12) und der Innenring (156) über einen Distanzring (17) auf der Schaftschulter (16) abgestützt ist.3. wing shaft bearing according to claim 1, characterized in that the outer ring (15a) of the second Bearing (15) over the disc springs (14) and a spacer tube (13) on the retaining ring (12) and the inner ring (156) is supported on the shaft shoulder (16) via a spacer ring (17). 4. Flügelschaftlagerung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß zwischen Distanzringen (11, 22, 17) und Lagerschultern Dichtungsringe (8,10,16) angeordnet sind.4. wing shaft mounting according to claims 1 to 3, characterized in that between spacer rings (11, 22, 17) and bearing shoulders sealing rings (8,10,16) are arranged. 5. Flügelschaftlagerung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß das zwischen Schaftende (la) und Sicherungsring (12) angeordnete Kugellager (9) ein Schrägkugellager ist.5. wing shaft mounting according to claim 1 and 2, characterized in that the between the shaft end (la) and retaining ring (12) arranged ball bearing (9) is an angular contact ball bearing. 3535
DE2054034A 1970-11-03 1970-11-03 Mounting for shafts of impeller hubs - has twin caged ball bearings and internal sprung contact system Pending DE2054034B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2054034A DE2054034B2 (en) 1970-11-03 1970-11-03 Mounting for shafts of impeller hubs - has twin caged ball bearings and internal sprung contact system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2054034A DE2054034B2 (en) 1970-11-03 1970-11-03 Mounting for shafts of impeller hubs - has twin caged ball bearings and internal sprung contact system

Publications (2)

Publication Number Publication Date
DE2054034A1 DE2054034A1 (en) 1972-05-04
DE2054034B2 true DE2054034B2 (en) 1975-11-06

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ID=5787041

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2054034A Pending DE2054034B2 (en) 1970-11-03 1970-11-03 Mounting for shafts of impeller hubs - has twin caged ball bearings and internal sprung contact system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3214223A1 (en) * 1982-04-17 1983-10-27 Aktiengesellschaft Kühnle, Kopp & Kausch, 6710 Frankenthal Axial fan

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2313070C3 (en) * 1973-03-16 1982-09-16 Aktiengesellschaft Kühnle, Kopp & Kausch, 6710 Frankenthal Rolling bearings for swiveling movements under high axial load
EP1818509A1 (en) * 2006-02-09 2007-08-15 Siemens Aktiengesellschaft Guide vane assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3214223A1 (en) * 1982-04-17 1983-10-27 Aktiengesellschaft Kühnle, Kopp & Kausch, 6710 Frankenthal Axial fan

Also Published As

Publication number Publication date
DE2054034A1 (en) 1972-05-04

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977