Scroll pump with controlled axial thermal expansion

Details Scroll pump with controlled axial thermal expansion Scroll pump with controlled axial thermal expansion

2007-07-17

2007-07-17

Nguyen, Hoang (Department: 3748)

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

C418S055300, C415S216100

Reexamination Certificate

active

10960673

ABSTRACT:
Vacuum pumping apparatus includes a pump frame, a stationary scroll element secured to the pump frame, the stationary scroll element including a stationary scroll blade, an orbiting scroll element including an orbiting scroll blade intermeshed with the stationary scroll blade, a motor secured to the pump frame, and a crankshaft coupled between the motor and the orbiting scroll element for producing orbiting movement of the orbiting scroll blade relative to the stationary scroll blade when the motor is energized. The crankshaft includes a first component having a first coefficient of thermal expansion and a second component having a second coefficient of thermal expansion.

REFERENCES:
patent: 3801226 (1974-04-01), Bevan et al.
patent: 4382754 (1983-05-01), Shaffer et al.
patent: 4490099 (1984-12-01), Terauchi et al.
patent: 4737073 (1988-04-01), Grayden
patent: 4773835 (1988-09-01), Machida et al.
patent: 5616015 (1997-04-01), Liepert
patent: 5755564 (1998-05-01), Machida et al.
patent: 6062833 (2000-05-01), Holzapfel et al.
patent: 6290477 (2001-09-01), Gigon
patent: 6336797 (2002-01-01), Kazakis et al.
patent: 6499967 (2002-12-01), Hansen
patent: 6579076 (2003-06-01), Narney et al.
patent: 2005/0042118 (2005-02-01), Sekiguchi et al.
patent: 987681 (1965-03-01), None
patent: 07 217553 (1995-08-01), None
patent: 2002 070761 (2002-03-01), None

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