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1. (WO2018099995) COOLANT COMPRESSOR

Pub. No.:    WO/2018/099995    International Application No.:    PCT/EP2017/080863
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Thu Nov 30 00:59:59 CET 2017
IPC: F04B 49/03
F04B 49/06
F04B 49/22
Applicants: NIDEC GLOBAL APPLIANCE GERMANY GMBH
Inventors: ALMBAUER, Raimund
Title: COOLANT COMPRESSOR
Abstract:
The invention relates to a coolant compressor comprising an electric drive unit, a cylinder housing (1), a crankshaft (3) which can be driven by the electric drive unit, and a piston (2) that can be driven by the crankshaft (3) and is guided in a working volume of the cylinder housing (1) for cyclically compressing a coolant which can be conveyed via a suction valve into the working volume, said suction valve comprising a suction opening (7) and a valve closure element (8), preferably a valve spring, which closes the suction opening (7) in cycles. The aim of the invention is to ensure a continuous opening movement of the suction valve during the suction cycle. According to the invention, this is achieved by providing an actuation device (14; 15, 23) which is designed to open the valve closure element (8) in cycles.