Connection between a rotor hub and a shaft of an electric motor

Details Connection between a rotor hub and a shaft of an electric motor Connection between a rotor hub and a shaft of an electric motor

1998-09-30

2000-03-21

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

With runner shaft of specific shape or material

416213R, 416213A, 416244R, F01D 2500

Patent

active

060395362

ABSTRACT:
An improvement in an electrical air pump having a housing with a pump mechanism at one end and an electric motor at the other end. The pump mechanism has at least one lightweight pump impeller made of plastic whose hub is press-fit on a shaft of the electric motor. The hub is provided with a plurality of grooves distributed around a bore in the hub which receives the motor shaft. The grooves form spaces between an inner surface of the hub and an outer surface of the shaft and the spaces are filled with an adhesive to bond the hub to the shaft. The grooves extend longitudinally or spirally along the entire length of the hub. The grooves are relatively shallow and have a depth of approximately 0.05 mm.

REFERENCES:
patent: 2857849 (1958-10-01), Pezzillo
patent: 5212607 (1993-05-01), Elsing et al.
patent: 5632685 (1997-05-01), Myers
patent: 5634724 (1997-06-01), Zang et al.
patent: 5797727 (1998-08-01), Peters et al.
Hahn G. "Verbindungstechnik Fur Kermamische Bauteile." Konstruktion, bd. 38, NV.9, (1986) pp. 359-363).

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