EP 1252445 A1 20021030 - Turbomolecular pump
Title (en)
Turbomolecular pump
Title (de)
Turbomolekularpumpe
Title (fr)
Pompe turbo-moléculaire
Publication
Application
Priority
- DE 10004271 A 20000201
- EP 0100726 W 20010124
Abstract (en)
[origin: DE10004271A1] The invention relates to a friction vacuum pump (1) comprising a fixed element (7) bearing rows of stator blades and a rotating element (6) bearing rows of rotor blades. The rows of stator blades and rotor blades are arranged concentrically with respect to the axis of rotation (4) of the rotating element (6) and engage with each other. In order to create a short friction pump, the elements (6,7) bearing the rows of rotor blades and stator blades extend in a substantially radial manner and the longitudinal axes of the blades (2,3) extend in a substantially axial manner.
[origin: DE10004271A1] The disc-form component parts(6,7) supporting the rotor and stator blade rows extend radially and the longitudinal axes of the blades(2,3) extend axially. Medium flows through the pump from the outside inwards, and the blade width decreases from the outside inwards. The stationary component(7) supporting the stator blades is a component part of the pump casing(8). The pump is of double or multiflow configuration, and several radially feeding pump stages may be arranged axially one behind the other.
IPC 1-7
IPC 8 full level
F04D 17/12 (2006.01); F04D 17/16 (2006.01)
CPC (source: EP US)
F04D 17/127 (2013.01 - EP US); F04D 17/168 (2013.01 - EP US)
Citation (search report)
See references of WO 0157402A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 10004271 A1 20010802; DE 50113533 D1 20080313; EP 1252445 A1 20021030; EP 1252445 B1 20080123; JP 2003525379 A 20030826; JP 4819277 B2 20111124; US 2004013514 A1 20040122; US 7011491 B2 20060314; WO 0157402 A1 20010809
DOCDB simple family (application)
DE 10004271 A 20000201; DE 50113533 T 20010124; EP 0100726 W 20010124; EP 01909681 A 20010124; JP 2001556016 A 20010124; US 18284302 A 20021112