Global Patent Index - EP 1727982 A1

EP 1727982 A1 20061206 - HERMETIC COMPRESSOR

Title (en)

HERMETIC COMPRESSOR

Title (de)

HERMETISCHER VERDICHTER

Title (fr)

COMPRESSEUR HERMETIQUE

Publication

EP 1727982 A1 20061206 (EN)

Application

EP 05703790 A 20050112

Priority

  • JP 2005000553 W 20050112
  • JP 2004074278 A 20040316

Abstract (en)

[origin: WO2005088127A1] The present invention relates to a hermetic compressor that stores oil (106), and houses compression mechanism (105) that compresses a refrigerant gas, in housing (101). Piston (140) is formed with at least two grooves (144) that do not include the edges of top surface (142) and skirt surface (143), on outer circumferential surface (145) of the piston, where groove (144) communicates with the space in housing (101), at least near the bottom dead center. Such a makeup allows the sliding part to be supplied with oil through groove (144), increasing efficiency owing to high sealability and a low sliding loss.

IPC 8 full level

F04B 39/02 (2006.01); F04B 9/04 (2006.01); F04B 27/04 (2006.01); F04B 27/10 (2006.01); F04B 39/00 (2006.01)

CPC (source: EP)

F04B 39/0005 (2013.01); F04B 39/0215 (2013.01); F04B 39/0238 (2013.01); F04B 39/0292 (2013.01)

Citation (search report)

See references of WO 2005088127A1

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

WO 2005088127 A1 20050922; CN 100445558 C 20081224; CN 1777753 A 20060524; DE 602005016904 D1 20091112; EP 1727982 A1 20061206; EP 1727982 B1 20090930; JP 2005264743 A 20050929; JP 4429769 B2 20100310; KR 100724843 B1 20070604; KR 20060061288 A 20060607; US 2006204373 A1 20060914

DOCDB simple family (application)

JP 2005000553 W 20050112; CN 200580000061 A 20050112; DE 602005016904 T 20050112; EP 05703790 A 20050112; JP 2004074278 A 20040316; KR 20057016218 A 20050831; US 54433905 A 20050803