US 2010/0304262 A1 · Controlled-Clearance Sealing Compressor Devices

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.

Claims31

Dependent claims

A positive displacement apparatus comprising:

a stator housing having an interior bore therethrough;
a first and a second endplate connected to the stator housing at each end of the interior bore;
a rotor having a rotor shaft located in the interior bore, wherein one end of the rotor shaft is connected to an external power source for rotating the rotor within the interior bore;
a rotor centering device for centering the rotor with respect to the stator housing to prevent the rotating rotor from contacting the interior bore and the first and second endplates;
a rotating vane assembly having at least one vane;
and
a vane centering device for connecting the rotating vane assembly to the rotor shaft and centering the at least one vane with respect to the rotor, wherein the rotor centering device controls a radial position of the rotating vane assembly and the vane centering device controls an axial position of rotating vane assembly to prevent contact of the at least one vane with the stator housing interior bore and the first and second endplates.

4 more elements

Dependencies are inferred from the claim text.

Controlled-Clearance Sealing Compressor Devices

Life of this patent

Controlled-Clearance Sealing Compressor Devices

Life of this patent

Abstract

Claims31