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1. (WO2018041403) COMPRESSOR

Pub. No.:    WO/2018/041403    International Application No.:    PCT/EP2017/001031
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Fri Sep 01 01:59:59 CEST 2017
IPC: F04B 39/02
F25B 31/02
F01M 1/02
Applicants: GEA BOCK GMBH
Inventors: LIBERT, Alexander
BESEMER, Markus
SANDKÖTTER, Wolfgang
Title: COMPRESSOR
Abstract:
The invention relates to a compressor (10), particularly a refrigerant compressor, comprising a compressor housing (14) and at least one piston (12) arranged in a cylinder in a reciprocal manner and driven by an electric motor (16), said compressor (10) having an oil sump lubrication, the oil sump (20) extending in the compressor (10) from a housing lower side (22) to an oil filling level (24), and a force-feed lubrication with a lubricant pumping device, the lubricant pumping device being connected to the oil sump and used to suck lubricant out of the oil sump, the electric motor (16) comprising a casing (18) with a casing interior (26) defined by the casing (18), the electric motor (16) being arranged in the casing interior (26) and the electric motor (16) together with the casing (18) extending into the oil sump (20) of the compressor (10). The casing (18) comprises a suction opening (28) connected to a suction device used to suck up lubricant that reaches the casing interior (26), the suction device and the lubricant pumping device being operated by a single toothed wheel pump (32) having a first (34) and a second (36) suction opening, where the first and the second suction openings are separate from each other, and the first suction opening (34) is used to suck up lubricant reaching the casing interior (26), and the second suction opening (36) is used to suck up lubricant from the oil sump (20).