EP 1041286 A2 20001004 - Scroll compressor with reverse rotation prevention
Title (en)
Scroll compressor with reverse rotation prevention
Title (de)
Spiralverdichter mit Schutz gegen Drehrichtungsumkehr
Title (fr)
Compresseur à spirales avec des protections contre la rotation en marche arrière
Publication
Application
Priority
US 28049599 A 19990330
Abstract (en)
A scroll type compressor is employed in a heat pump system having a solenoid actuated four way flow reversing valve. A processor monitors a system parameter that is indicative that a flow reversal has taken place or is about to take place, at which time the compressor motor is shut down for a predetermined period of time during which the compressor produces objectionable noise produced by separation of the scroll element due to a low pressure differential over the compressor. At the end of the period, the compressor motor is reenergized. The processor is arranged to cycle the compressor at the beginning and end of each defrost cycle or when the system undergoes a change in its operational mode. <IMAGE>
IPC 1-7
IPC 8 full level
F04B 49/06 (2006.01); F04C 2/02 (2006.01); F04C 18/02 (2006.01); F04C 28/06 (2006.01); F04C 28/28 (2006.01); F04C 29/06 (2006.01); F24F 13/24 (2006.01); F25B 1/00 (2006.01); F25B 1/04 (2006.01); F25B 30/02 (2006.01); F25B 49/02 (2006.01)
CPC (source: EP)
F04C 28/06 (2013.01); F04C 28/28 (2013.01)
Designated contracting state (EPC)
ES FR GB GR IT NL
DOCDB simple family (publication)
EP 1041286 A2 20001004; EP 1041286 A3 20011024; AU 2266100 A 20001005; CN 1268651 A 20001004; JP 2000297771 A 20001024; KR 20000063059 A 20001025
DOCDB simple family (application)
EP 00200684 A 20000228; AU 2266100 A 20000329; CN 00103692 A 20000228; JP 2000090112 A 20000329; KR 20000016369 A 20000330