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1. (WO2018083579) DRIVE FOR A COMPRESSOR ELEMENT AND WATER INJECTED COMPRESSOR DEVICE PROVIDED WITH SUCH A DRIVE

Pub. No.:    WO/2018/083579    International Application No.:    PCT/IB2017/056714
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Tue Oct 31 00:59:59 CET 2017
IPC: H02K 5/167
H02K 5/20
H02K 5/128
H02K 9/19
H02K 3/44
H02K 3/52
F04C 29/04
Applicants: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
Inventors: COLMAN, Luc Lodewijk Anna
COOLS, Pieter
VRIENS, Viktor Maurits
Title: DRIVE FOR A COMPRESSOR ELEMENT AND WATER INJECTED COMPRESSOR DEVICE PROVIDED WITH SUCH A DRIVE
Abstract:
Actuator for a compressor element (3), said actuator (2) comprising an electrical motor (12) with a motor casing (13) which defines a motor chamber (14) in which a motor rotor (15) is positioned rotatably with the help of one or more motor bearings (16) in relation to a motor stator (19), whereby the motor stator (19) is built of laminations (20) around which windings (21) are attached and whereby the motor rotor (15) is built of a shaft (17) with laminations (18), whereby the actuator (2) is further equipped with a cooling circuit (24) for a coolant characterized in that the coolant is water, that the motor bearings (16) are water-lubricated, that the shaft (17) on the motor rotor (15) is made from stainless steel, that the aforementioned windings (21) are embedded in an epoxy resin (22) and that a composite sleeve (23) is applied around each of the laminations (18, 20) on the motor rotor (15) and on the motor stator (19).