Title (en)

Compressor System

Title (de)

Kompressorsystem

Title (fr)

Système de compresseur

Publication

EP 1607631 A3 20060322 (EN)

Application

EP 05103404 A 20050426

Priority

• KR 20040040994 A 20040604
• KR 20040073172 A 20040913

Abstract (en)

[origin: EP1607631A2] A driving unit and control method for a reciprocating compressor for controlling a frequency of input power so that an operational frequency of the compressor follows a resonant frequency, which varies depending on a variation of the load applied to the compressor. The reciprocating compressor includes an inverter to adjust the frequency of the input power, so that the frequency of the input power is set at a value corresponding to the resonant frequency by the inverter. The resonant frequency is set in a range of 60% to 90% of the normal power frequency. The compressor further includes a controller to control the frequency of the input power so that the operational frequency of the compressor follows the resonant frequency, which varies depending on the operation of the compressor.

IPC 8 full level

F04B 17/00 (2006.01); F04B 35/04 (2006.01); F04B 49/06 (2006.01)

CPC (source: EP US)

F04B 35/045 (2013.01 - EP US); F04B 2201/0806 (2013.01 - EP US); F04B 2203/0401 (2013.01 - EP US); F04B 2203/0402 (2013.01 - EP US); F04B 2203/0404 (2013.01 - EP US)

Citation (search report)

• [XY] US 4706470 A 19871117 - AKAZAWA NAOKI [JP], et al
• [Y] US 5947693 A 19990907 - YANG SOON-BAE [KR]
• [A] US 6074172 A 20000613 - HUANG BIN-JUINE [TW]
• [A] US 5106268 A 19920421 - KAWAMURA AKIRA [JP], et al
• [A] GB 2109590 A 19830602 - STANDARD TELEPHONES CABLES LTD
• [A] US 4514991 A 19850507 - ZINSMEYER THOMAS M [US]
• [A] US 4474537 A 19841002 - DOELZ HEINRICH [DE]

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1607631 A2 20051221; EP 1607631 A3 20060322; JP 2005344708 A 20051215; US 2005271526 A1 20051208

DOCDB simple family (application)

EP 05103404 A 20050426; JP 2005137796 A 20050510; US 10974305 A 20050420