Friction vacuum pump
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United States of America Patent
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-
Mar 14, 2006
Grant Date -
Jan 22, 2004
app pub date -
Jan 24, 2001
filing date -
Feb 1, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A friction vacuum pump (1) comprises a fixed element (7) bearing rows of stator blades (3) and a rotating element (6) bearing rows of rotor blades (2). The rows of stator blades and rotor blades are arranged concentrically with respect to an axis of rotation (4) of the rotating element (6) and mesh with each other. In order to create in the axial direct 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.
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