EP 2064305 B1 20200603 - REFRIGERANT COMPRESSOR
Title (en)
REFRIGERANT COMPRESSOR
Title (de)
KÜHLKOMPRESSOR
Title (fr)
COMPRESSEUR DE RÉFRIGÉRANT
Publication
Application
Priority
- JP 2008057458 W 20080410
- JP 2007233780 A 20070910
Abstract (en)
[origin: WO2009034738A1] A refrigerant compressor includes a hermetic container storing refrigerant oil an electrically-driven element and a compressing element driven by the electrically-driven element. The compressing element includes a cylinder block having a cylindrical compression chamber and a cylindrical piston reciprocating in the compression chamber. The compression chamber and the piston have a diameter difference in the range of not shorter than 4 micrometers to not longer than 15 micrometers. The refrigerant oil has viscosity of 8 mm2/s or less at 40 degrees Celsius and is prepared by mixing a first refrigerant oil having viscosity of less than 8 mm2/s at 40 degrees Celsius with a second refrigerant oil having viscosity of 20 mm2/s or more at 40 degrees Celsius.
IPC 8 full level
C10M 171/00 (2006.01); F04B 39/02 (2006.01)
CPC (source: EP KR US)
C10M 171/008 (2013.01 - EP KR US); F04B 39/0215 (2013.01 - EP KR US); C10M 2203/06 (2013.01 - EP KR US); C10M 2203/065 (2013.01 - EP KR US); C10M 2203/10 (2013.01 - EP US); C10M 2203/1006 (2013.01 - EP US); C10M 2207/28 (2013.01 - EP KR US); C10M 2207/2805 (2013.01 - EP KR US); C10N 2020/02 (2013.01 - EP US); C10N 2020/101 (2020.05 - EP US); C10N 2020/103 (2020.05 - EP US); C10N 2030/02 (2013.01 - EP US); C10N 2040/30 (2013.01 - EP US)
Citation (examination)
- WO 2007029884 A1 20070315 - MATSUSHITA ELECTRIC IND CO LTD [JP], et al
- H BUKAC ET AL: "Optimum Piston-Bore Fit for Maximum Compressor Efficiency OPTIMUM PISTON-BORE FIT FOR MAXIMUM COMPRESSOR EFFICIENCY", INTERNATIONAL COMPRESSOR ENGINEERING CONFERENCE. PAPER, 1 January 2000 (2000-01-01), XP055310537, Retrieved from the Internet <URL:http://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=2429&context=icec> [retrieved on 20161013]
Designated contracting state (EPC)
DE IT
DOCDB simple family (publication)
WO 2009034738 A1 20090319; CN 101541935 A 20090923; CN 101541935 B 20120606; EP 2064305 A1 20090603; EP 2064305 B1 20200603; JP 2009540170 A 20091119; JP 4905464 B2 20120328; KR 20090057175 A 20090604; US 2010236282 A1 20100923
DOCDB simple family (application)
JP 2008057458 W 20080410; CN 200880000422 A 20080410; EP 08740528 A 20080410; JP 2008555550 A 20080410; KR 20087032043 A 20081230; US 37472508 A 20080410