Abstract:
La présente invention concerne un système d'étanchéité, pour arbre (10) tournant de compresseur mécanique ou électrique, l'arbre (10) étant relié à au moins un compartiment (1, 2) dans lequel est disposée une roue de compresseur (3) et comportant au moins un moyen de guidage (4), le système d'étanchéité comportant au moins un moyen d'étanchéité (8) disposé en amont du moyen de guidage (4), par rapport à la roue (3). L'invention concerne également un compresseur équipé d'un tel système.
Abstract:
A well pump assembly (13) has a submersible well fluid pump (19), motor (15), and seal section (17) with a seal section shaft (51)for transferring rotation of a motor drive shaft to a pump drive shaft. The seal section has a shaft passage (49) through which the seal section shaft extends. A movable compensating element (41) has an interior containing motor lubricant that is in fluid communication with motor lubricant in the motor and also in fluid communication with motor lubricant in the shaft passage. A shaft seal (53) restricts well fluid from entry into the shaft passage. A lubricant pump (77) driven by the shaft has a discharge within the shaft passage below the shaft seal. A recirculation passage (85) extends from the shaft passage at a point between the discharge of the lubricant pump and the shaft seal to the interior of the compensating element.
Abstract:
A seal assembly for a dual-flow compressor is provided. The seal assembly may include an annular body disposed about a rotary shaft between a first compression assembly and a second compression assembly of the dual-flow compressor. An inner radial surface of the annular body and an outer radial surface of the rotary shaft may at least partially define a radial clearance therebetween. The annular body may have a first seal section and a second seal section at a first axial end portion and a second axial end portion thereof, respectively. The first and second seal sections may at least partially define a cavity therebetween. The seal assembly may also include a reference line communicably coupling the cavity with an inlet of the first compression assembly and configured to at least partially generate a pressure differential between the cavity and an outlet of the first compression assembly.
Abstract:
A gas turbine engine includes a bearing support positioned fore of a compressor section along a primary flowpath. The bearing support internally includes a fluid reservoir with a reservoir tube, a fluid pump with a fluid pump tube, and a fluid coupler coupling the reservoir tube to the fluid pump tube.
Abstract:
A coupling to attach an impeller of a compressor to a shaft of an electric motor. The coupling has a coupling body that is attached at a first of the ends thereof to the impeller and at the opposite second end, to the motor shaft. The coupling body has a deformable section between the first and second ends of the coupling body. The deformable section is configured such that under an unbalanced loading exerted against the coupling body upon a failure of the impeller, the deformable section will permanently deform without the ultimate strength of a material forming the coupling body being exceeded and prior to a permanent deformation of the shaft. In such manner, the electric motor is protected from damage upon a failure of the impeller.
Abstract:
Embodiments of the present disclosure are directed towards a seal assembly including a first seal and a second seal, wherein the first seal and the second seal axially about one another within a retaining bore of a compressor, and cooperatively form an outer radial contour of the seal assembly that is retained by the retaining bore.
Abstract:
Die Erfindung geht aus von einem Verdichterrotor (1) mit einer mehrere axial hintereinander angeordnete, miteinander verbundene Segmente (3, 4, 5) aufweisenden Ritzelwelle (2) und mit einer die Ritzelwelle (2) abdichtenden, mehrteiligen Dichtung (6). Um Unwuchten bei dem Verdichterrotor (1) zu vermeiden bzw. eine möglichst spielfreie Zentrierung eines mit dem Verdichterrotor (1) mitrotierenden Dichtungselements (13) der mehrteiligen Dichtung (6) zu ermöglichen, ist vorgesehen, dass die Ritzelwelle (2) ein ein Laufrad tragbares Laufradsegment (5), ein Anschlusssegment (5) und ein axial zwischen dem Laufradsegment (5) und dem Anschlusssegment (4) angeordnetes Verzahnungssegment (3) aufweist, welches Verzahnungssegment (3) an seinen beiden Enden (7, 8) jeweils eine Verzahnung (9) aufweist, worüber das Verzahnungssegment (3) über entsprechende Gegenverzahnungen (10) an Enden (11, 12) des Laufradsegments (5) und des Anschlusssegments (4) axial zwischen dem Laufradsegment und dem Anschlusssegment gehalten, insbesondere spielfrei zentriert gehalten, wird, und auf welchem Verzahnungssegment (3) ein mit dem Verzahnungssegment (3) zumindest kraftschlüssig verbundenes Dichtungselement (13) der mehrteiligen Dichtung (6) angeordnet ist.