Abrégé

The invention relates to a rotary feedthrough (201) for the feeding through of a powder-gas mixture from a stationary machine part into a rotating machine part, comprising a seal in the form of two flat, circular-ring-shaped sliding sealing surfaces (207f, 207r) arranged one on the other in a sliding manner, which sliding sealing surfaces are arranged concentric to the axis of rotation of the rotating machine part and can be moved apart from each other in the axial direction such that the sliding sealing surfaces form a gap, wherein the seal is embedded in a purge chamber (209) having at least one gas inlet (211) and at least one gas outlet (213).

Classes IPC  ?

• F16L 27/08 - Raccords réglablesRaccords permettant un déplacement des parties raccordées permettant un réglage ou déplacement uniquement autour de l'axe de l'un des tuyaux
• B23Q 11/10 - Dispositions pour le refroidissement ou la lubrification des outils ou des pièces travaillées
• H05H 1/42 - Torches à plasma utilisant un arc avec des dispositions pour l'introduction de matériaux dans le plasma, p. ex. de la poudre ou du liquide

Abrégé

The present invention relates to a rotary leadthrough (10) for transferring fluids from a static machine part (1) to a rotating machine part (2) and having a slip ring seal (4) in the form of two planar, essentially circular slip ring sealing surfaces (5) that are arranged so as to slide on one another, in which one slip ring (6) is arranged on the end face of an axially movable hollow piston (8) that is arranged in the static machine part (2), and the other slip ring (7) is arranged on the rotating machine part (3) such that, during the relative rotation of the rotating and the static machine parts, the slip ring sealing surfaces (5) slide on one another and are in sealing contact with one another. In order to create a rotary leadthrough of the type mentioned in the introduction, which in spite of dry-running safety still has only small leakage losses with at the same time improved sealing action even when conveying a non-lubricating medium and even at high rotational speeds of the rotating machine part, it is proposed according to the invention that the slip ring seal (4) have a spring element (11) exerting a closing force on the hollow piston (8), such that the slip rings (6, 7) be in sealing contact even when the hollow piston is not pressurized by a conveyed medium.

Classes IPC  ?

• F16L 27/08 - Raccords réglablesRaccords permettant un déplacement des parties raccordées permettant un réglage ou déplacement uniquement autour de l'axe de l'un des tuyaux

Abrégé

The invention relates to a strip conductor (10) having at least two parallel conductor strips (1) which extend in a common plane and an earth line (3) which is spaced apart from the conductor strips and extends in a surface parallel to the common surface, wherein the conductor strips are arranged for capacitive or inductive data transmission on or close to the surface of a substrate material. The problem addressed by the invention is that of creating a strip conductor and a device having the features referred to in the introduction, which are less sensitive to interference signals and thus enable data transmission at a higher bandwidth. This problem is solved, according to the invention, in that for the suppression of interference signals, apart from the earth line (3), on both sides adjacent to the conductor strips (1a, 1b) and in the common surface defined by the parallel conductor strips (1a, 1b), or criss-crossing the surface, a respective damping structure (2a, 2b) is provided which extends in the longitudinal direction parallel to the conductor strip and is at a constant reference potential relative to the potential of the earth line (3).

Classes IPC  ?

• H01P 1/06 - Joints mobiles, p. ex. joints rotatifs
• G08C 17/00 - Dispositions pour transmettre des signaux caractérisées par l'utilisation d'une voie électrique sans fil
• H04B 5/00 - Systèmes de transmission en champ proche, p. ex. systèmes à transmission capacitive ou inductive

Abrégé

The invention relates to a ring electrode for a slip ring for transmitting electrical energy between machine parts, of which at least one machine part can be rotated in relation to another machine part. The ring electrode and corresponding slip ring can be economically produced and have low wear. The electrode is made of a rod material made of stainless steel, which is rolled into a ring and the free ends of the ring are brought together to form a closed ring.

Classes IPC  ?

• H01R 39/14 - Assemblage de collecteurs ou de bagues collectrices avec les arbres
• H01R 39/08 - Bagues collectrices
• H01R 43/10 - Fabrication de bagues collectrices
• H01R 39/02 - Collecteurs de courant rotatifs, distributeurs ou interrupteurs Détails
• H01R 39/10 - Bagues collectrices autres qu'avec une surface de contact externe cylindrique, p. ex. bagues collectrices plates
• H01R 39/20 - Contacts pour coopération avec collecteur ou bague collectrice, p. ex. balais de contact caractérisés par le matériau utilisé
• H01R 39/26 - Contacts massifs de glissement, p. ex. balai de charbon
• H01R 39/38 - Porte-balais

Abrégé

The invention relates to an antenna structure for the wide-band transmission of electrical signals, which has a stripline and a probe that can be capacitively or inductively coupled to the stripline, wherein the stripline and the probe are arranged so as to be movable in relation to each other within a specified distance range between the probe and the stripline in the longitudinal direction of the stripline such that electrical signals can be transmitted between the stripline and the probe without contact, wherein the stripline comprises at least one strip electrode facing the probe, a reference electrode, and a dielectric carrier material located between the strip electrode and the reference electrode. In order to provide a wide-band and economical device for signal transmission that has a conductor structure that achieves high symmetry of the signal and low attenuation values even at high frequencies, the dielectric carrier material comprises, according to the invention, a homogeneous plastic layer containing macromolecules, said plastic layer being characterized by an orientation of the macromolecules along a preferred direction.

Classes IPC  ?

• H01Q 1/38 - Forme structurale pour éléments rayonnants, p. ex. cône, spirale, parapluie formés par une couche conductrice sur un support isolant
• H01Q 1/50 - Association structurale d'antennes avec commutateurs de terre, dispositions de descente d'antennes ou parafoudres
• H01P 5/04 - Dispositifs de couplage du type guide d'ondes à coefficient de couplage variable
• H01Q 13/20 - Antennes constituées par un guide non résonnant à ondes de fuite ou une ligne de transmissionStructures équivalentes produisant un rayonnement le long du trajet de l'onde guidée

Abrégé

The invention relates to an antenna structure for the wide-band transmission of electrical signals, which has a stripline and a probe that can be capacitively or inductively coupled to the stripline, wherein the stripline and the probe are arranged so as to be movable in relation to each other within a specified distance range between the probe and the stripline in the longitudinal direction of the stripline such that electrical signals can be transmitted between the stripline and the probe without contact, wherein the stripline comprises at least one strip electrode facing the probe, a reference electrode, and a dielectric carrier material located between the strip electrode and the reference electrode. In order to provide a wide-band and economical device for signal transmission that has a conductor structure that achieves high symmetry of the signal and low attenuation values even at high frequencies, the dielectric carrier material comprises, according to the invention, a homogeneous plastic layer containing macromolecules, said plastic layer being characterized by an orientation of the macromolecules along a preferred direction.

Classes IPC  ?

• H01P 5/04 - Dispositifs de couplage du type guide d'ondes à coefficient de couplage variable
• H01Q 13/20 - Antennes constituées par un guide non résonnant à ondes de fuite ou une ligne de transmissionStructures équivalentes produisant un rayonnement le long du trajet de l'onde guidée
• H04B 5/00 - Systèmes de transmission en champ proche, p. ex. systèmes à transmission capacitive ou inductive

Abrégé

The invention relates to a ring electrode for a slip ring for transmitting electrical energy between machine parts, of which at least one machine part can be rotated in relation to another machine part, a corresponding slip ring, and a method for producing a corresponding ring electrode. In order to create a ring electrode and a corresponding slip ring, and a method for producing said ring electrode, which ring electrode and corresponding slip ring can be economically produced and have low wear, the electrode according to the invention is made of a rod material made of stainless steel, which is rolled into a ring and the free ends of which are brought together to form a closed ring.

Classes IPC  ?

• H01R 43/10 - Fabrication de bagues collectrices

Abrégé

The present invention relates to a rotary feedthrough for the transfer of flowable media between a stationary (50) and a rotating machine part (60), comprising a non-rotatable feedthrough housing (1) and a rotatable shaft (2) that extends through the feedthrough housing and has axial and radial holes (3) for the transfer of flowable media, wherein the shaft has a first shaft end (2') that can be permanently connected to a rotatable machine part (60) and a second shaft end (2") that is accessible on the side of the feedthrough housing (1) facing away from the rotatable machine section (60) for the attachment of at least one additional element rotatable with the shaft (2), wherein the feedthrough housing (1) has elements with radial supply holes and bearing elements (4) by means of which the feedthrough housing (1) is supported on the shaft (2). According to the invention, in order to design a rotary feedthrough of the type mentioned above such that both fluids and electrical signals can be transferred from the stationary machine part to the rotating machine part or vice versa, the second shaft end (2") is also connected to an electric rotary feedthrough which has a contact ring that is coaxially aligned with the shaft, the contact elements or countercontacts thereof which are rotatable with the shaft are connected to a first part of a plug connection by means of a cable, wherein the first part of the plug connection can be assembled together with a matching second part of the plug connection, the face end thereof being attached on or in the second shaft end (2") and from which a cable extends axially through the shaft (2) of the rotary feedthrough to an additional plug connection element on or in the first shaft end.

Classes IPC  ?

• H02G 11/00 - Installations de câbles ou de lignes électriques entre deux pièces en mouvement relatif
• H01R 39/00 - Collecteurs de courant rotatifs, distributeurs ou interrupteurs
• H02K 9/28 - Refroidissement des collecteurs, des bagues collectrices ou des balais, p. ex. par ventilation

Abrégé

The present invention relates to an optical rotary transmitter for directly transmitting an optical signal between a stationary and a rotating machine part, having a rotor (10), which has a bearing portion (15) with a first bearing seat (17) defining a first bearing axis (16), wherein a first optical component (13) having a first optical axis (14) is received in a first hole in the rotor, and having a stator (20), which has a second bearing portion (25) with a second bearing seat (27) defining a second bearing axis (26), wherein an optical component (23) with a second optical axis (24) is arranged in a second central hole (21) in the stator (20), wherein a sleeve of the optical component or the first hole receiving the sleeve with a good fit defines a first axis (12) which does not coincide with the first optical axis, and wherein the first and second optical axes are aligned with the rotation axis of the rotor. In order to provide an optical rotary transmitter with the features mentioned at the outset and to provide a corresponding apparatus and a method for the production thereof, which make it possible to drastically reduce the error tolerances for the alignment of the optical axis relative to the rotation axis of the transmitter and render them considerably more stable in the long term, the invention proposes that the contact faces of the rotor, which determine the position and orientation of the optical axis, are processed outside the first hole such that the first axis (12) is misaligned relative to the first bearing axis (16) while the first optical axis (14) coincides with the first bearing axis (16).

Classes IPC  ?

• G02B 6/36 - Moyens de couplage mécaniques

Abrégé

The present invention relates to a slip ring for transmitting electrical signals between a non-rotating part and a part rotating relative thereto, wherein the slip ring consists of a ring-shaped basic body and at least one slideway arranged on a face of the basic body. In order to develop corresponding slip rings in such a way that corresponding bearings of rotating slip rings and possibly also the contact paths of the slip rings are subjected to a less severe load during use, the invention proposes that the basic body has cutouts or cavities.

Classes IPC  ?

• H01R 39/08 - Bagues collectrices
• H01R 39/10 - Bagues collectrices autres qu'avec une surface de contact externe cylindrique, p. ex. bagues collectrices plates
• H01R 39/14 - Assemblage de collecteurs ou de bagues collectrices avec les arbres

Abrégé

The invention relates to a bushing (10) of a radial rotary feedthrough, wherein the bushing (10) comprises a hollow cylindrical main body, the interior cylinder surface of which forms a sliding seal surface (1). According to the invention, a corresponding bushing (10) should still function well and be usable at pressures of more than 150 bar, and in particular at pressures of more than 200 bar, and still enable a transfer of fluid at low leakage rates at relatively high speeds. In order to obtain a bushing (10) having the aforementioned features, according to the invention the lateral surfaces (12a, b) of the inner groove (2) are as large as the lateral surfaces (13a, b) of the outer groove (3), within a tolerance threshold of +20% and -35%, and the stationary sealing rings (7a, b) on the outer surfaces of the bushing are positioned in the axial direction such that the sealing rings have an axial distance (a) from the axial outer ends of the opposite sliding seal surfaces (1a, b), which distance corresponds to at least 40% and at maximum 55% of the respective axial length (d) of the sliding seal surfaces (1a, b).

Classes IPC  ?

• F16L 27/087 - Raccords avec passages de fluides orientés radialement
• F16J 15/44 - Garnitures discontinues

Abrégé

To further develop torsional vibration dampers, the invention proposes a torsional vibration damper having a primary side, having a secondary side and having a spring-damper device which is wetted with lubricant, in which torsional vibration damper the primary side comprises a primary mass with a drive shaft receptacle and the secondary side comprises a secondary mass, and in which torsional vibration damper the spring-damper device dampens torsional vibrations between the primary mass and the secondary mass, wherein the torsional vibration damper is characterized in that the primary mass is produced by primary forming with the drive shaft receptacle, and in that a sealing device (62) is arranged on the primary mass (4), which sealing device projects radially inward between the primary mass (4) and the secondary mass (30) and is arranged in a materially integral manner on the primary mass (4).

Classes IPC  ?

• F16F 15/16 - Suppression des vibrations dans les systèmes rotatifs par utilisation d'organes mobiles avec le système lui-même utilisant un fluide

Abrégé

The present invention relates to a rotary feedthrough for an axial transfer of fluids under high pressure from a stationary machine part into a rotating machine part, the feedthrough having a stationary housing, which has an axial through opening, and forms an axial guide for a first hollow piston, wherein said piston is received so it can be axially displaced but is sealed in and/or on said guide of said stationary housing and has a first slide seal ring on the end facing toward said rotating machine part. The slide seal ring is in turn fastened to said piston to form a seal and has a flat slide seal face for the sealed slide contact with the flat slide seal face of a second slide seal ring, which is opposite to the first slide seal ring, and which forms a seal on the rotating machine part and is rotatably fastened thereto, and wherein said first piston is spring-loaded with said first slide seal ring in the direction of said second slide seal ring. In order to design a rotary feedthrough of the above-mentioned type such that even at high pressures and/or high relative velocities of the slide seal faces, the requirement for regular maintenance and/or for the replacement of the slide seal rings is minimized, according to the invention the second slide seal ring is also provided on an axially movable second hollow piston, which is received so it can be axially displaced and is sealed in and/or on a guide on the rotating machine part, wherein said second piston is spring-loaded with said second slide ring seal in the direction of said first slide ring seal.

Classes IPC  ?

• F16L 27/08 - Raccords réglablesRaccords permettant un déplacement des parties raccordées permettant un réglage ou déplacement uniquement autour de l'axe de l'un des tuyaux