Accession Number : ADD015596

Title :   Single Screw Interrupted Thread Positive Displacement Mechanism.

Descriptive Note : Patent, Filed 17 Jul 91, patented 14 Jul 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Boblitt, Wayne W

Report Date : 14 Jul 1992

Pagination or Media Count : 9

Abstract : A single screw positive displacement compressor mechanism employing shallow gate rotor tooth penetration of the main rotor for purposes of reducing internal leakage and consequent compressor inefficiencies. The invention is provided with an interrupted main rotor thread for purposes of insuring multiple gate rotor teeth meshing with the drive portion of the main rotor thread, thereby reducing gate rotor tooth flank loads in the compressor section of the device. Provision is also made for main rotor thread baffling between the main rotor chamber section and the mechanism inlet.

Descriptors :   *COMPRESSOR ROTORS, *SCREW THREADS, CHAMBERS, DISPLACEMENT, DRIVES, INLETS, INTERNAL, INVENTIONS, PENETRATION, SCREWS, TEETH

Subject Categories : Couplers, Fasteners, and Joints

Distribution Statement : APPROVED FOR PUBLIC RELEASE