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1. (WO2018197669) COOLANT COMPRESSOR

Pub. No.:    WO/2018/197669    International Application No.:    PCT/EP2018/060876
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Sat Apr 28 01:59:59 CEST 2018
IPC: F04B 39/12
F04B 39/02
Applicants: NIDEC GLOBAL APPLIANCE GERMANY GMBH
Inventors: SCHWEIGHOFER, Alfred
KRISPEL, Wilhelm
Title: COOLANT COMPRESSOR
Abstract:
The invention relates to a coolant compressor having a compressor housing (6), an electric drive unit comprising a rotor (4) and a stator (3), a crankshaft (1) rotationally fixedly connected to the rotor (4) and having a longitudinal axis (2); and a piston-cylinder unit (5) that can be driven by the crankshaft (1). In order to permit an increased feed rate of lubricant from a lubricant sump, according to the invention, on an end of the crankshaft (1) that is opposite to the piston-cylinder unit (5) there is arranged a sleeve-like lubricant receptacle (8) for the centrifugal delivery of lubricant out of the lubricant sump in the direction of the piston-cylinder unit (5), wherein the sleeve-like lubricant receptacle (8) is fixed to the crankshaft (1) via a fixing section (9), wherein the fixing section (9) of the sleeve-like lubricant receptacle (8) is at least partly arranged between crankshaft (1) and rotor (4) in the radial direction in relation to the longitudinal axis (2) of the crankshaft (1).