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1. DE000010004271 - Friction vacuum pump has component parts supporting rotor and stator blade rows extending radially and longitudinal axes of blades extend axially, and medium flows through pump from outside inwards

Office Germany
Application Number 10004271
Application Date 01.02.2000
Publication Number 000010004271
Publication Date 02.08.2001
Publication Kind A1
IPC
F04D 19/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
19Axial-flow pumps specially adapted for elastic fluids
02Multi-stage pumps
04specially adapted to the production of a high vacuum, e.g. molecular pumps
CPC
F04D 17/127
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
17Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
08Centrifugal pumps
10for compressing or evacuating
12Multi-stage pumps
127with radially spaced stages, e.g. for contrarotating type
F04D 17/168
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
17Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
08Centrifugal pumps
16for displacing without appreciable compression
168Pumps specially adapted to produce a vacuum
Applicants LEYBOLD VAKUUM GMBH
Inventors ENGLAENDER HEINRICH
Title
(DE) Reibungsvakuumpumpe
(EN) Friction vacuum pump has component parts supporting rotor and stator blade rows extending radially and longitudinal axes of blades extend axially, and medium flows through pump from outside inwards
Abstract
(DE)

Die Erfindung betrifft eine Reibungspumpe (1) mit einem feststehenden, Statorschaufelreihen tragenden Bauteil (7) sowie mit einem rotierenden, Rotorschaufelreihen tragenden Bauteil (6), wobei die Stator- und Rotorschaufelreihen konzentrisch zur Drehachse (4) des rotierenden Bauteils (6) angeordnet sind und ineinandergreifen; um eine in axialer Richtung kurze Reibungspumpe zu schaffen, wird vorgeschlagen, dass sich die die Rotor- und Statorschaufelreihen tragenden Bauteile (6, 7) im wesentlichen radial und die Längsachsen der Schaufeln (2, 3) im wesentlichen axial erstrecken.

(EN)

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.