SINGLE SCREW COMPRESSOR

PROBLEM TO BE SOLVED: To improve the efficiency of a compressor in a single screw compressor by suppressing wear of a gate. SOLUTION: In the single screw compressor, gates (51) of gate rotors (50) are engaged with helical grooves (41) of a screw rotor (40). In each helical groove (41) of the screw r...

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Bibliographische Detailangaben
Hauptverfasser:	MURONO TAKAYOSHI, UENO HIROMICHI, OTSUKA KANAME
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To improve the efficiency of a compressor in a single screw compressor by suppressing wear of a gate. SOLUTION: In the single screw compressor, gates (51) of gate rotors (50) are engaged with helical grooves (41) of a screw rotor (40). In each helical groove (41) of the screw rotor (40), the region from the start point of the groove (41) to the middle of a compression stroke is a suction side portion (45) and the remaining region (region to the end point) is a discharge side portion (46). In the suction side portion (45), the clearance between each gate (51) and wall surfaces (42, 43, 44) of the suction side portion (45) is substantially zero. The clearance between each gate (51) and wall surfaces (42, 43, 44) of the discharge-side portion (46) is greater than the clearance between the gate (51) and the wall surfaces (42, 43, 44) of the suction side portion (45) and gradually expands toward the end points of the helical grooves (41). COPYRIGHT: (C)2009,JPO&INPIT