EP 2256344 A4 20180307 - SEALED COMPRESSOR
Title (en)
SEALED COMPRESSOR
Title (de)
HERMETISCHER VERDICHTER
Title (fr)
COMPRESSEUR ÉTANCHE
Publication
Application
Priority
- JP 2009005449 W 20091019
- JP 2008277972 A 20081029
- JP 2008277973 A 20081029
Abstract (en)
[origin: EP2256344A1] A hermetic compressor includes a cylindrical hole (117) forming a compression space (115) and having a tapered portion (127) so as to increase its inner diameter from the top dead center to the bottom dead center of a piston (123). The piston (123) is reversed in its inclination direction with respect to the axial center of the cylindrical hole (117) in the initial stage of the compression stroke. This reduces the contact between the piston (123) and the cylindrical hole (117) at the time of the reversal, as compared with the case in which the piston (123) is reversed in its inclination direction in the middle or later stage of the compression stroke. As a result, the hermetic compressor is reliable and has low noise level.
IPC 8 full level
F04B 39/12 (2006.01); F04B 39/00 (2006.01); F04B 39/02 (2006.01)
CPC (source: EP US)
F04B 39/023 (2013.01 - EP US); F04B 39/125 (2013.01 - EP US); F04B 39/126 (2013.01 - EP US)
Citation (search report)
- [YA] JP 2002089450 A 20020327 - SANYO ELECTRIC CO
- [Y] US 5816783 A 19981006 - OSHIMA YASUHIRO [JP], et al
- [YA] DD 236148 A1 19860528 - DKK SCHARFENSTEIN VEB [DD]
- [Y] US 4028015 A 19770607 - HETZEL THOMAS ROBERT
- [A] WO 9424436 A1 19941027 - BRASIL COMPRESSORES SA [BR], et al
- [A] DE 10118930 A1 20021024 - WABCO GMBH & CO OHG [DE]
- See references of WO 2010050141A1
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
EP 2256344 A1 20101201; EP 2256344 A4 20180307; CN 101970879 A 20110209; CN 101970879 B 20130807; JP 5136639 B2 20130206; JP WO2010050141 A1 20120329; US 2011176942 A1 20110721; WO 2010050141 A1 20100506
DOCDB simple family (application)
EP 09823255 A 20091019; CN 200980108608 A 20091019; JP 2009005449 W 20091019; JP 2010502588 A 20091019; US 200913119494 A 20091019