Refurbishment process of the pumping unit in a volumetric screw compressor of the ‘oil free’ type

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United States of America Patent

PATENT NO 9878347
SERIAL NO

14226098

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Abstract

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A refurbishment process for a volumetric screw compressor of the ‘oil-free’ type, which comprises a male rotor and a female rotor, is described. The process comprises visually checking the wear condition of the rotors, treating their surface for removing the previous coating, and applying a new coating on the surface. The composition of the coating applied on the surface of the rotors consists of the following materials:

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Patent Owner(s)

Patent OwnerAddress
RIEM ITALY S R L00132 ROMA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Russo, Fabio Rome, IT 5 4

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