Screw compressor and refrigeration cycle apparatus

The present invention is provided with a variable port (16), the aperture area of which and the initial discharge timing of which can be changed by the movement of a slide valve (12), and a fixed port (17), the aperture area of which does not change when the slide valve (12) moves. When the slide va...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Toshihide Koda, Mihoko Shimoji, Naoto Uenakai, Soichi Shiraishi, Masaaki Kamikawa, Kazuyuki Tsukamoto
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:	The present invention is provided with a variable port (16), the aperture area of which and the initial discharge timing of which can be changed by the movement of a slide valve (12), and a fixed port (17), the aperture area of which does not change when the slide valve (12) moves. When the slide valve (12) is positioned the farthest to the intake side, the shape of the intake-side end surface of a discharge port aperture part substantially forms the shape of a letter 'Z', the angles of which are formed by connecting a slanted surface (12d) on the variable port (16) side, a slide surface (16l), which is the boundary between the fixed port (17) and the variable port (16), and a slanted surface (17a) on the fixed port (17) side.