Radial turbo-blower
AssigneeLeybold Vakuum GmbH
InventorsJosef Hodapp, Karl-Heinz Ronthaler, Hans Kriechel
Life of this patent
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Abstract
The radial turbo-blower comprises a stator (35) that is housed in a stator housing (10) and a rotor (13) that rotates within a pump housing (11). The rotor (13) comprises a cavity (23) with a bearing arrangement (26) that is received by a protruding bearing pin (25). The pump room (12) is separated from the stator room (22) by a thin partition wall (21). Thereby, an atmospheric pressure is maintained in the stator room (22). The blower consists of few components and has a short structural length. It is substantially maintenance-free and the rotor area is protected from being contaminated by oil.
Claims9
A radial turbo-blower comprising a rotatably supported rotor (13) and a motor driving the rotor,
- characterized in that
- the motor is a permanently excited disk armature motor (44) comprising permanent magnets (20) with an axial magnetic field orientation mounted to the rotor (13) and stationary stator coils (36), and that the rotor (13) is supported, by means of a bearing arrangement (26) housed in a cavity (23) of the rotor, on a stationary bearing pin (25) projecting into the cavity (23).
Dependencies are inferred from the claim text.