Abstract:
Connection unit for sealingly connecting two pipes (2, 3) traversed by an electric current and mutually rotatable, comprising a first end element (4) to be connected to one of the pipes (2), a first intermediate pipe (5), an insulating joint (6) interposed between the first end element (4) and the first intermediate pipe (5), a second pipe (7) to be connected to another pipe (3), a rotary joint (11) sealingly connecting with a possible relative rotation the first intermediate pipe (5) to the second pipe (7, 8), a bypass circuit (19, 49, 42, 50, 27) electrically connecting the first end element (4) to the second pipe (7, 8), and a heating element (42) in series with the bypass circuit and arranged in the rotary joint (11).
Abstract:
A faucet having a swivel joint for adjusting the position of an outlet of the faucet. A flow coupler is fixed to a first faucet tube and a sleeve is removably and pivotally linked to flow coupler by a fastener. A second faucet tube is then removably linked to the sleeve allowing the second faucet tube and sleeve to pivot about the flow coupler to adjust the outlet of the faucet.
Abstract:
A joint for coaxially rotating pipes comprising a seal packing (5), placed in the annular clearance between the surfaces (8, 9) of embracing (1) and embraced (2) pipes, a device (6) for tightening the seal packing (5) provided with clamping rings (16, 17) enclosing the seal packing and a thrust ring (7) bearing an axial force created by the pressure of the medium transported through the pipes (1, 2), that thrust ring being mounted at the end (4) of the embraced pipe (2). The thrust ring (7) is so mounted that it is allowed to move axially, relative to the pipe, in the annular clearance or gap, with the result that the thrust ring exerts a pressure on the clamping ring (16) placed against the seal packing at the side of the end (4) of the embraced pipe (2) and adapted for the axial displacement thereof relative to the pipe, in the annular gap.
Abstract:
The present invention relates to a rotating joint (1) comprising a first ring element (2) provided with a first opening (3) intended to receive an end of a first pipe (20), a second ring element (4) provided with a second opening (15) and integral with the first ring element (2), a frusto-conical member (5) provided with a fifth opening (16) intended to receive an end of a second pipe (40), a sealing element (6) provided with a third opening (7) and interposed between said first (2) and second (4) ring element, a plurality of blocking means (8), decoupling means in contact with said first (2) and second (4) ring element and with said sealing element (6), said decoupling means being adapted to limit the mutual friction and comprising a disk-shaped element (10) provided with a fourth opening (11) and the surface of which is provided with a plurality of grooves (12) adapted to receive a fluid lubricant, wherein said disk- shaped element (10) is coupled to said first (2) and second (4) ring element and said sealing element (6) in such a way as to keep said first (3), second (15), third (7), fourth (11) and fifth (16) opening in fluid communication and coaxial with each other, and wherein said disk-shaped element (10) is integral with said frusto-conical element (5) and with the corresponding second pipe (40) in order to allow the relative rotation of the group formed by the disk-shaped element (10) / frusto-conical member (5) / second pipe (40) with respect to the group formed by the first ring element (2) / second ring member (4)/ first pipe (20). The rotating joint 1 according to the present invention finds advantageous and preferred application in the petroleum industry and in the food industry.
Abstract:
The present invention concerns a rotatable coupling (60) for connecting pipes, comprising a first hollow female element (61) suited to be connected, for example, to a first pipe portion (51), and a second tubular male element (6) with a first end portion at least partially housed inside the first female element (61) so as to define an inner space for the passage of a fluid, and with a second end portion suited to be connected to a second pipe portion (52). Said first and said second element (61, 6) can be rotated with respect to each other, said second tubular male element (6) comprising a first abutment surface (6S). Furthermore, the rotatable coupling (60) comprises a third hollow tubutar element (12) housed inside the first female element and provided with a second abutment surface (1S) substantially opposite the first abutment surface (6S) so as to define a first interspace (I), and the third tubular hollow element (12) can be translated along a direction substantially orthogonal to the first and the second abutment surface (6S, 1S) between a closed configuration, in which the first and the second abutment surface (6S, 1S) are positioned at a minimal mutual distance, and an open configuration, in which the first and the second abutment surface (6S, 1S) are positioned at a distance that exceeds said minimal mutual distance.
Abstract:
L'invention concerne un raccord rotatif annulaire (2) de deux tronçons d'une enveloppe de protection d'un bras de robot articulé (B). Ce raccord est remarquable en ce qu'il comprend deux brides plates annulaires coaxiales d'axe central (X-X'), la première (3) étant munie de moyens de fixation (314) au premier des deux tronçons, la seconde (4), de moyens de fixation (44) au second tronçon, en ce que chaque bride (3, 4) présente une surface annulaire plane (311, 41) de contact avec l'autre bride (4, 3), en ce que la première bride (3) est munie de moyens (311, 5, 6, 47, 48) de retenue et de guidage de la seconde bride (4), qui autorisent un mouvement de rotation relatif d'une bride par rapport à l'autre, autour d'un axe de rotation (X-X') confondu avec les axes centraux desdites surfaces de contact annulaires (311, 41), en ce que chaque bride (3, 4) présente au moins une rainure annulaire (312a, 312b, 312c, 412a, 412b, 412c) débouchant sur sa surface de contact (31, 41), coaxiale avec l'axe de rotation(X-X'), et en ce qu'un joint d'étanchéité (7) est disposé dans l'espace délimité par les deux rainures en regard l'une de l'autre.
Abstract:
The invention relates to a swivel for offshore applications, comprising an inner and an outer ring (2,3). The rings are coaxial and rotatable relative to one another around a central axis (4), and define a toroidal chamber (7) and an axial seal annulus gap (5) between the rings. The inner and outer rings are rotatably interconnected via a bearing structure (8,9). The invention is characterised in that, the swivel comprises an upper bearing structure (8) and a lower bearing structure (9) on each side of the toroidal chamber (7). Ech bearing structure interconnects the inner and outer rings (2,3). An upper and a lower sealing member 10,11;12,13) is situated in the seal annulus gap (5) near a respective upper and lower bearing structure (8,9). At least one (3) of the inner and outer rings is comprised of an upper member (20), a lower member (22) and a central member (21). The upper and lower members (20,22) are fixedly attached to the respective upper and lower bearing structures (8,9) and the central member (21) is independently displaceable relative to the upper and lower ring members (20,21).
Abstract:
Die Erfindung betrifft eine Drehdurchführung, die eine in einem ersten Gehäuseteil (1) drehbar gelagerte Hohlwelle (4) mit einer ersten Dichtfläche (13) und eine innerhalb eines zweiten Gehäuseteils (2) verdrehfest angeordnete, zu der Hohlwelle (4) koaxiale Dichtungsbuchse (15) mit einer zweiten Dichtfläche (14) zur Anlage an der ersten Dichtfläche (13) enthält. Um neben einem geringeren Verschleiß auch geringere Leckverluste bei der Zuführung von Kühlschmierstoffen und Druckluft zu ermöglichen enthält das zweite Gehäuseteil (2) einen an eine Kühlmittelversorgungsleitung (41) oder eine Druckluftversorgungsleitung (36) anschließbaren ersten seitlichen Zufuhrkanal (27) für die Zuführung des Kühlschmiermittels oder der Druckluft über mindestens eine radiale Öffnung (24) der Dichtungsbuchse (15) und einen bei der Zuführung des Kühlschmiermittels beaufschlagten zweiten Zufuhrkanal (30) für die Zuführung des Kühlschmiermittels an einen das hintere Ende der Dichtungsbuchse (15) verschließenden Druckkolben (18) zur Erhöhung des Anpreßdrucks der Dichtflächen (13, 14).
Abstract:
The disclosure describes A rotary union that includes a housing having a fluid inlet, a rotating machine component rotatably supported in the housing, a rotating seal member associated with the rotating machine component, a non-rotating seal member slidably and sealably disposed within the housing adjacent the rotating seal member, and an expandable seal disposed between and sealably engaging each of the non-rotating seal member and the housing. The expandable seal includes two end portions, one of the two end portions engaged to the non-rotating seal member and the other of the two end portions engaged to the housing, and an expandable portion disposed axially between the two end portions, the expandable portion having an axial length that varies based on a pressure of a hydraulic fluid that is present at the fluid inlet.