EP 2161519 A1 20100310 - Oil return algorithm for capacity modulated compressor
Title (en)
Oil return algorithm for capacity modulated compressor
Title (de)
Ölrückführalgorithmus für Verdichter mit Kapazitätsmodulation
Title (fr)
Algorithme de retour d'huile pour compresseur à capacité modulée
Publication
Application
Priority
US 20316408 A 20080903
Abstract (en)
A control for a compressor motor is programmed to operate the motor at at least one low capacity and at least one higher capacity. The control is operable to estimate an amount of oil which will have migrated from said compressor shell, at least when the compressor is operating at the lower capacity rate. The motor control moves the compressor motor from the lower capacity to at least one higher capacity once the estimated quantity of oil exceeds a predetermined limit. The capacity may be related to space.
IPC 8 full level
F25B 31/00 (2006.01)
CPC (source: EP KR US)
F04C 18/02 (2013.01 - KR); F04C 28/00 (2013.01 - KR); F04C 29/12 (2013.01 - KR); F25B 31/004 (2013.01 - EP US); F25B 49/022 (2013.01 - EP US); F25B 2500/16 (2013.01 - EP US)
Citation (search report)
- [X] US 2008134701 A1 20080612 - CHRISTENSEN OLE MOELGAARD [DK], et al
- [X] US 5067326 A 19911126 - ALSENZ RICHARD H [US]
- [A] US 2003051494 A1 20030320 - OHYA SHIGEKI [JP]
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 TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
EP 2161519 A1 20100310; CN 101666305 A 20100310; CN 101666305 B 20141203; JP 2010059962 A 20100318; KR 20100027946 A 20100311; US 2010050673 A1 20100304
DOCDB simple family (application)
EP 09251462 A 20090601; CN 200910147499 A 20090616; JP 2009164618 A 20090713; KR 20090042416 A 20090515; US 20316408 A 20080903