EP 2877748 B1 20190206 - COMPRESSOR DEVICE, AND COOLING DEVICE EQUIPPED THEREWITH AND REFRIGERATION MACHINE EQUIPPED THEREWITH
Title (en)
COMPRESSOR DEVICE, AND COOLING DEVICE EQUIPPED THEREWITH AND REFRIGERATION MACHINE EQUIPPED THEREWITH
Title (de)
KOMPRESSORVORRICHTUNG SOWIE EINE DAMIT AUSGERÜSTETE KÜHLVORRICHTUNG UND EINE DAMIT AUSGERÜSTETE KÄLTEMASCHINE
Title (fr)
DISPOSITIF COMPRESSEUR AINSI QU'UN DISPOSITIF DE RÉFRIGÉRATION AINSI ÉQUIPÉ ET UNE MACHINE FRIGORIFIQUE AINSI ÉQUIPÉE
Publication
Application
Priority
- DE 102012213293 A 20120727
- EP 2013065822 W 20130726
Abstract (en)
[origin: WO2014016415A2] The invention relates to an economical compressor device having an elastic membrane (6) and to a cooling device equipped therewith and a refrigeration machine equipped therewith, wherein working liquid (14) is present on one side of the membrane and the working gas (10) to be compressed is present on the other side of the membrane (6). The membrane is designed as a balloon (6) or bellows (80). Because the gas volume (8) is in the balloon (6) and the liquid volume (12) is outside, the balloon shell is always protected from damage by a liquid film on the hard inner surface (generally made of metal) when the balloon shell rubs on the hard inner surface of the compressor chamber due to irregular operating conditions. Because the working liquid is generally hydraulic oil, the protective effect is additionally improved by the lubricating oil effect. Instead of a balloon (6), a tubular bellows (80) can also be used as the membrane. The bellows (80) has the advantage that the volume enlargement or volume reduction is "directed" in the longitudinal direction of the bellows (80) due to the design and the arrangement of the folds. Therefore, rubbing contact between the bellows (80) and the hard inner surface of the compressor chamber (4) is nearly impossible. Thus, if a bellows (80) is used as the compressor membrane, the gas volume (8) can also be provided inside the bellows. This "directedness" of the volume change can be improved by positive guidance of the bellows (80) along a rod having a longitudinal bearing. The bellows (80) is usually made of a stainless steel alloy and is extremely gas-tight for all relevant working gases (10), the exception being hydrogen.
IPC 8 full level
F04B 43/073 (2006.01); F25B 9/14 (2006.01)
CPC (source: EP US)
F04B 43/073 (2013.01 - EP US); F04B 45/033 (2013.01 - US); F04B 49/22 (2013.01 - US); F04B 53/08 (2013.01 - US); F25B 9/00 (2013.01 - US); F25B 9/14 (2013.01 - EP US); F25B 31/00 (2013.01 - EP US)
Citation (examination)
- DE 2801670 A1 19790719 - UHDE GMBH
- SU 440534 A1 19740825
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2014016415 A2 20140130; WO 2014016415 A3 20140515; DE 102012213293 A1 20140130; DE 102012213293 B4 20180329; EP 2877748 A2 20150603; EP 2877748 B1 20190206; JP 2015524892 A 20150827; JP 6240190 B2 20171129; US 11231029 B2 20220125; US 2015128616 A1 20150514
DOCDB simple family (application)
EP 2013065822 W 20130726; DE 102012213293 A 20120727; EP 13742442 A 20130726; JP 2015523567 A 20130726; US 201514601462 A 20150121