摘要:
A supersonic compressor system (10) includes a casing defining a cavity (34) extending between a fluid inlet (28) and a fluid outlet (30), a first drive shaft (72) positioned within the cavity, wherein a centerline axis (24) extends along a centerline of the first drive shaft, a supersonic compressor rotor (40) coupled to the first drive shaft and positioned in flow communication between the fluid inlet and the fluid outlet, the supersonic compressor rotor including at least one supersonic compression ramp (140) configured to form at least one compression wave (142) for compressing a fluid (88), and a centrifugal compressor assembly (46) positioned in flow communication between the supersonic compressor rotor and the fluid outlet, the centrifugal compressor assembly configured to compress fluid received from the supersonic compressor rotor.
摘要:
The invention relates to a multi-stage vacuum pump comprising at least one turbocompressor stage (11) and equipped with a circular compressor stage (33) on the pressure side of the turbocompressor stage. Said pump has small axial dimensions, enabling the compression to be increased without significantly increasing the space requirement.
摘要:
A cutoff for a blower housing. The cutoff comprises a cutoff having an edge, the edge includes first and second ends and a midsection. The midsection includes an acoustical reduction section. Each end includes an efficiency enhancing portion curving from a first smaller radial dimension to a second greater radial dimension proximal the acoustical reduction section. The acoustical reduction section is located between the first and second ends and has a greater third radial dimension greater than the first or second radial dimensions.
摘要:
Die Erfindung beschreibt eine zweiflutige Gasreibungspumpe, bestehend aus einem Gehäuse (1) mit Ansaugöffnung (2) und Gasaustrittsöffnung (3), wobei im Gehäuse symetrisch zur Ansaugöffnung Rotor- und Statorelemente (5, 9) angebracht sind. Im Bereich der Ansaugöffnung ist eine Vorrichtung (15) mit gasfördernder Struktur angebracht, welche mit den Rotorelementen umläuft. Die Vorrichtung dehnt sich axial nach beiden Richtungen so weit aus, daß sie die Rotor- und Statorelemente der Gasreibungspumpe teilweise koaxial umschließt.
摘要:
A supersonic compressor rotor and method of compressing a fluid is disclosed. The rotor includes a first and a second rotor disk, a first set and a second set of rotor vanes. The first set and second set of rotor vanes are coupled to and disposed between the first and second rotor disks. Further, the first set of rotor vanes are offset from the second set of rotor vanes. The rotor includes a first set of flow channels defined by the first set of rotor vanes disposed between the first and second rotor disks. Similarly, the rotor includes a second set of flow channels defined by the second set of rotor vanes disposed between the first and second rotor disks. Further, the rotor includes a compression ramp disposed on a rotor vane surface opposite to an adjacent rotor vane surface.
摘要:
Die Erfindung betrifft somit insgesamt einen Rotor (10) für eine thermische Strömungsmaschine, insbesondere eine Gasturbine, der ausgestaltet ist, in seinem Inneren ein Medium, beispielsweise Verdichterluft, zu führen. Um dieses Medium strömungsverlustarm im Inneren zu führen und um gleichzeitig einen vergleichsweisen einfach sowie kostengünstig herstellbaren Rotor (10) anzugeben, ist vorgesehen, dass zwischen den einander benachbarten Nabenbereichen der beiden Rotorscheiben (34, 42) ein separat gefertigtes Flügelrad (50) angeordnet ist, dass zur Befestigung des Flügelrads (50) an der einer der beiden Rotorscheiben (34, 42) eine Hülse (62) vorgesehen ist, welche sich durch die zentrale Öffnung (30) der betreffenden Rotorscheibe erstreckt (34, 42) und die an ihrem ersten Ende (63) einen als Anschlag dienenden Kragen (64) und ein dem ersten Ende (63) gegenliegendes zweites Ende (65) umfasst, auf welchem zweiten Ende (65) das Flügelrad (50) befestigt ist.
摘要:
A supersonic compressor rotor includes a rotor disk (48) including a substantially cylindrical endwall (60), a radially inner surface (56), and a radially outer surface (58), the endwall extending between the radially inner surface and the radially outer surface, a plurality of vanes (46) coupled to the endwall, the vanes extending outwardly from the endwall, adjacent vanes forming a pair (74) and are spaced a circumferential distance apart such that a flow channel is defined between each the pair of circumferentially-adjacent vanes, the flow channel extending generally radially between an inlet opening (78) and an outlet opening (80), and a first supersonic compression ramp (102) coupled to the endwall, the first supersonic compression ramp positioned within the flow channel to facilitate forming at least one compression wave (102) within the flow channel.
摘要:
The present invention relates to a spiral pumping stage for a vacuum pump, which is particularly intended to be arranged at an additional side inlet (48) of a vacuum pump (40) and allows to obtain an improved pumping speed at said additional side inlet. According to the invention, the spiral pumping stage comprises both centripetal (11) and centrifugal (21) pumping channels, so that the gas is pumped from the periphery to the center of the pumping stage throughout a first group of pumping channels and it is pumped from the center to the periphery of the pumping stage throughout a second group of pumping channels. Thanks to this inventive arrangement, both the gas coming from a previous pumping stage or a main pump inlet (42) arranged upstream the pumping stage according to the invention and the gas coming from the additional side inlet (48) can be effectively pumped by the pumping stage according to the invention.