Abstract:
A mechanical seal comprises an elastomeric member (3), a spring biasing member (8), a longitudinally floating first member (5), a longitudinally non-floating second member (4), a longitudinally floating third member (9) and a longitudinally floating seal face (7). The elastomeric member is in sealing engagement with the seal face and the first and second members and the spring biasing member is longitudinally pointed between the seal face and the third member. The first and second members are longitudinally restrained and rotationally coupled by male longitudinally protruding portions (12) engaging with female portions (11).
Abstract:
In an apparatus having a housing, a housing bore, and a shaft rotatably extending through the housing bore, a rotary seal assembly which includes a seal carrier retainer connected with the housing and defining a cavity surrounding the shaft, a seal carrier positioned within the cavity of the seal carrier retainer, wherein the seal carrier is capable of an amount of radial deflection and tilting both relative to the seal carrier retainer and wherein the seal carrier is retained by the seal carrier retainer so that rotation of the seal carrier relative to the seal carrier retainer is prevented, a rotary shaft seal carried by the seal carrier between the seal carrier and the shaft, and a seal carrier seal interposed between the seal carrier and the seal carrier retainer.
Abstract:
A slide ring seal, comprising a slide ring (1) which is mounted in an axially movable manner and a counterpart ring (3), wherein the slide ring (1) and the counterpart ring (3) each have sealing surfaces (1a, 3a) which bear against one another, wherein the sealing surface (1a) of the slide ring (1) is situated opposite the sealing surface (3a) of the counterpart ring (3), and wherein the slide ring (1) is pressed against the counterpart ring (3) by a bellows-like spring means (4), is characterized, with regard to the object of refining and developing a slide ring seal of the type specified in the introduction such that, after inexpensive and problem-free manufacture, it has a particularly flexible slide ring and/or counterpart ring, in that at least one sealing surface (1a, 3a) has elevations or unevennesses of a size of 0.1 pm to W mm, wherein W is calculated in accordance with formula W = 0.03Dm /s , wherein the mean diameter Dm represents the mean value of outer diameter (Da) and inner diameter (Di) of the circular-ring-shaped sealing surface (1a, 3a) and wherein s represents the thickness of the slide ring (1 ) or counterpart ring (3).
Abstract:
A slide ring seal, comprising a slide ring (1) which is mounted in an axially movable manner and a counterpart ring (3), wherein the slide ring (1) and the counterpart ring (3) each have sealing surfaces (1a, 3a) which bear against one another, wherein the sealing surface (1a) of the slide ring (1) is situated opposite the sealing surface (3a) of the counterpart ring (3), and wherein the slide ring (1) is pressed against the counterpart ring (3) by a spring means (4), is characterized, with regard to the object of refining and developing a slide ring seal of the type specified in the introduction such that, while being inexpensive and easy to manufacture and having a construction involving a particularly small number of components, it seals off two chambers in a reliable and permanent manner, in that the counterpart ring (3) is formed in one piece with an axial projection (5) which can be assigned to a shaft (6) in order to fix the counterpart ring (3) on the shaft (6).
Abstract:
Un élément d'étanchéité statique (1) comprend une rondelle conique (10) élastique dont la déformation permet de transmettre un effort, une enveloppe (18) pour établir l'étanchéité, et deux rondelles d'appui (27 et 28) qui transmettent les effets originaires de la rondelle élastique (10) aux bords recourbés (20, 21) de l'enveloppe (18) de manière à exercer sur eux une pression qui garantit l'étanchéité. L'enveloppe (18) peut ainsi être construite en une matière ductile mais moins déformable que les élastomères habituels.
Abstract:
A mechanical face seal, for sealing about a rotating shaft, includes a seal head assembly in sealing engagement with a seal seat assembly. The seal seat assembly has a washer with a portion that is sandwiched between a grommet and a seal seat. Another portion of the washer is sandwiched between a sleeve or shoulder on the shaft and an impeller. Frictional heat generated by the seal can be conducted away from the seal seat to the sleeve or shoulder on the shaft, which is particularly advantageous when the face seal is operated without water adjacent to the seal seat.
Abstract:
Eine Gleitringdichtungsanordnung umfasst wenigstens ein Paar zusammenwirkender Gleitringe (4,5), von denen einer zur Montage an einem stationären Bauteil und der andere zur gemeinsamen Drehung mit einem rotierenden Bauteil vorgesehen ist und von denen einer axial beweglich angeordnet und gegen den anderen Gleitring mittels einer Federbalganordnung (11) mit einer bestimmten axialen Vorspannkraft axial vorgespannt ist. Die Federbalganordnung umfasst einen ersten einerends an dem betreffenden Gleitring und anderenends an einem ringförmigen, axial relativ zum betreffenden Bauteil beweglich angeordneten Tellerelement (12) abgestützten Federbalg (13) und einen zweiten einerends am Tellerelement und anderenends am betreffenden Bauteil abgestützten Federbalg (14). Das Tellerelement (12) ist gegen eine axiale Reibkraft relativ zum betreffenden Bauteil beweglich ist, die wenigstens im Wesentlichen gleich einer bestimmten maximalen Betriebsschwingungskraft ist. Es wird verhindert, dass die Schwingungen auf den zweiten Federbalg übertragen werden, so dass nur der erste Federbalg Schwingungsbeanspruchungen ausgesetzt ist.
Abstract:
Die Erfindung betrifft eine Axial-Gleitringdichtung als Abdichtung zwischen einer Welle (7) und einem stationären Teil (8), wobei ein ringförmiges Gleitstück (5) von einem elastischen ringförmigen Träger (1, 3, 4) getragen ist, wobei der hülsenförmige Fußβ (1) des Trägers (1,3, 4) auf der Welle (7) sitzt, daβ das Gleitstück (5) von einem ringförmigen Kopf (4) des Trägers getragen ist, und daβ der Kopf mit dem Fußβ (1) über ein im Querschnitt abgewinkelten elastischen Bereich (3) verbunden ist, der einen halsförmigen federnden Druck auf den Kopf und das Gleitstück ausübt.