Controlled-clearance sealing compressor devices

Details Controlled-clearance sealing compressor devices Controlled-clearance sealing compressor devices

2005-09-02

2010-06-22

Freay, Charles G (Department: 3746)

Rotary expansible chamber devices

Positively actuated vane

Cam actuated

C418S106000, C418S031000, C418S265000, C417S312000

Reexamination Certificate

active

07740460

ABSTRACT:
A controlled-clearance sealing compressor device that provides precision rotor centering directly with respect to the stator housing, vane centering with respect to rotor (not the stator) and the dynamic balance design of the gliders required for practical single and dual vane devices. The devices uses roller bearings to control the radial position of the vane and control rods or pins are used to control axial positioning of the vane, its ‘centralization’ with respect to the rotor and the endplates. The positive displacement rotary vane compressors and vacuum pumps have friction reduction, efficiency enhancement and exceedingly long operating life as a result of the non-contact gas sealing of the process gas within the rotary vane compressors and vacuum pumps. In an embodiment the positive displacement compressing device is used in transportation vehicles.

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patent: 2003/0021713 (2003-01-01), Edwards
patent: 2006-083767 (2006-03-01), None

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