摘要:
A rotary machine for acting on a fluid is proposed comprising a stationary housing (2), a rotor (3) for interacting with the fluid, a shaft (4) for rotating the rotor (3) about an axial direction (A), a bearing unit (5) for supporting the rotor (3), and a sealing arrangement (6) for sealing the bearing unit (5) with respect to the rotor (3), wherein the rotor (3) is arranged in the housing (2), and wherein the sealing arrangement (6) comprises a stationary sealing element (61) surrounding the shaft (4) and designed for a contactless sealing of the shaft (4), and wherein the sealing arrangement (6) further comprises a rotor ring (62) for preventing an axial flow along the shaft (4) to the rotor (3), and a cover plate (63), wherein the rotor ring (62) is rotationally fixedly connected to the rotor (3) and arranged axially adjacent to the sealing element (61), wherein the rotor ring (62) comprises a radially outer edge (622) extending in the axial direction (A) and surrounding the sealing element (61), wherein the cover plate (63) is fixed with respect to the housing (2) and surrounds the rotor ring (2), wherein the cover plate (63) has an outer rim (631) extending in the axial direction (A), wherein a drain chamber (64) is formed between the outer edge (622) of the rotor ring (62) and the outer rim (631) of the cover plate (63), and wherein a discharge passage (65) is provided for discharging the drain chamber (64).
摘要:
A turbomolecular pump has a housing (120), a rotor shaft (24) supported by a plurality of bearings (32, 34) for rotation relative to the housing about an axis of rotation (26), a deflector (40), a lubricant supply system (36) and a lubricant transfer device (38) provided on the rotor shaft. The bearings include a rolling bearing (32) that receives lubricant from the lubricant supply system to via the lubricant transfer device. The rolling bearing is disposed intermediate the lubricant transfer device and the deflector and the deflector is configured to deflect lubricant that passes through the rolling bearing outwardly with respect to the rotor shaft.
摘要:
The present inventive concept is directed to a vacuum pump comprising a rotor and a stator, wherein the rotor is supported by metal bearings (such as steel bearings) to allow relative rotation of the rotor with respect to the stator. A liquid PFPE lubricant compound is provided to lubricate the bearings, wherein the lubricant further comprises a solid lubricant that is in suspension in the liquid lubricant. The solid lubricant can comprise any of graphite, graphene and molybdenum disulphide. In other words, the inventive concept encompasses a lubricated bearing arranged to support a rotating shaft in a body under sub-atmospheric conditions, wherein a lubricant used to lubricate the bearing comprises liquid PFPE lubricant having a low vapour pressure, and a solid lubricant that is held in suspension in the liquid lubricant. The solid lubricant may comprise any of graphite, graphene and molybdenum disulphide.
摘要:
Compressor device for compressing gas that comprises a compressor element (2) with a housing (3) with, an inlet (3) and an outlet (6), whereby at least one rotor is affixed in the housing (3) that is provided with a drive (7), whereby the compressor device (1) is provided with an oil circuit (16) for injecting oil into the housing (3) f characterised in that the oil circuit (16) only comprises one pump (23) for driving the oil around in the oil circuit (16), whereby this pump (23) is coupled to a first shaft (9) via a first disengageable coupling (24), more specifically a shaft (9) of the aforementioned drive (7) on the one hand, and to a second shaft (27) via a second disengageable coupling (28), more specifically a shaft (27) of a secondary drive (25) on the other hand, whereby the first and second disengageable couplings (24, 28) between the pump (23) and the first shaft (9) and between the pump (23) and the second shaft (27) are such that the pump (23) is only driven by the shaft of these two shafts (9, 27) that has the highest speed.
摘要:
본 발명은 전기차량용 제동장치에 관한 것으로, 그 목적은 브레이크 패드를 배제시킬 수 있을 뿐만 아니라 브레이크 패드의 소손 없이 전기자동차를 제동시킬 수 있도록 하는 것에 있으며, 이러한 목적은 바퀴에 일단이 고정된 회전부의 회전축 타단에 연결되어 상기 회전축이 회전하는 것에 의해 충진된 유류를 압송가능하도록 유출구와 유입구를 갖추어 지지부에 설치가능하게 구비되는 유류압송부와, 상기 유류압송부의 유출구측에 일단이 연결되고, 타단은 유입구에 연결되어 유류압송부가 작동하는 것에 의해 유류를 순환시킬 수 있도록 구비되는 유류순환관과, 상기 유류순환관 상에 설치되어 운전자가 조작하는 것에 의해 상기 유류순환관이 개폐됨에 따른 유류압송부의 작동이 제어되어 회전축을 제동가능하도록 구비되는 제동부재를 포함하여 이루어진 것에 의해 달성된다.
摘要:
A disclosed lubrication system for turbofan engine includes a primary lubricant circuit, a primary pump driving lubricant through the primary circuit, an auxiliary lubricant circuit in communication with the primary lubricant circuit and an auxiliary lubricant pump driving lubricant through the auxiliary lubricant circuit. A first valve downstream of an outlet of auxiliary lubricant pump separates the auxiliary lubricant circuit from the primary lubricant circuit. A sensor is disposed within the auxiliary lubricant circuit for sensing pressure within the auxiliary lubricant circuit separate from a pressure within the primary lubricant circuit.
摘要:
Die Erfindung betrifft ein Lagersystem für einen in einem Prozess (8) zum Verdichten eines Prozessgases integrierten Turboverdichter (1), mit einem mit einem Schmierfluid geschmierten Lager (4) zur Lagerung eines Rotors des Turboverdichters (1), einer atmosphärenseitigen Wellendichtung (5), mit der das Lager (4) zur Atmosphäre hin isoliert ist, und einem Sammeltank (7) zur Bereitstellung des Schmierfluids für das Schmieren des Lagers (4), der eine Rücklaufleitung (15) für den Rücklauf des Schmierfluids von dem Lager (4) zu dem Sammeltank (7) und eine Beaufschlagungsleitung (9) aufweist, die an den Prozess (8) derart angeschlossen ist, dass das Schmierfluid in dem Sammeltank (7) von dem Prozessgas und somit die Rücklaufleitung (15) mit einem Überdruck beaufschlagt ist. Überschüssiges im Sammeltank (7) ausgedampftes Prozessgas wird über eine Rückführleitung (11) in den Prozess (8) zurückgeführt.
摘要:
L'invention concerne un compresseur (1) comprenant un boîtier (3) délimitant un circuit d'admission apte à canaliser un fluide et formant un volume (11) dans lequel s'étend un arbre (19) supporté par une liaison pivot principale (20) et par une liaison pivot secondaire (21), ladite liaison pivot secondaire (21) étant montée sur une paroi (12) délimitant le circuit d'admission, caractérisé en ce qu'il comprend un moyen de lubrification (32) de la liaison pivot secondaire (21) installée sur ladite paroi (12).