SCREW VACUUM PUMP

PURPOSE:To prevent any obstruction of operation due to deposit irrespective of the amount of reaction product by providing a groove or recess in at least one position of the surface of a screw rotor, and cooling the mutually opposite walls of a bore. CONSTITUTION:When an input shaft 4 is rotated, a...

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1. Verfasser: KAMETANI HIROCHIKA
Format: Patent
Sprache:eng
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