Screw machine

A screw machine (10) is provided. The screw machine (10) comprises a rotor housing (12), a conjugate pair of intermeshing rotors (14, 16), and a wear resistant coating (40, 42, 60, 61, 82, 92). The rotor housing (12) has a pair of parallel, overlapping bores (12-1, 12-2). The conjugate pair of inter...

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Bibliographische Detailangaben
Hauptverfasser:	KHALIFA, HUSSEIN E, EATON, HARRY E, COOPER, CLARK V, KUMAR, KESHAVA B, MCCLUSKEY, PHILIP H, DROST, RONALD T, BUSH, JAMES W, DU, HONG, LIN, RENG RONG, DEBLOIS, RAYMOND
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL BLASTING ENGINE PLANTS IN GENERAL HEATING INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES ORMATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHERTHAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS SPRAYING OR ATOMISING IN GENERAL STEAM ENGINES TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A screw machine (10) is provided. The screw machine (10) comprises a rotor housing (12), a conjugate pair of intermeshing rotors (14, 16), and a wear resistant coating (40, 42, 60, 61, 82, 92). The rotor housing (12) has a pair of parallel, overlapping bores (12-1, 12-2). The conjugate pair of intermeshing rotors (14, 16) are located in said bores (12-1, 12-2). Each of said rotors (14, 16) has helical lobes (14-1, 16-1) and intervening flutes (14-2, 16-2). The rotors (14, 16) have contact bands whereat torque is transmitted from one rotor (14,16) to another rotor (16, 14). The wear resistant coating (40, 42, 60, 61, 82, 92) is disposed on the contact bands of said rotors (14, 16).