EP 2304238 A1 20110406 - METHOD FOR CONTROLLING THE OPERATION OF A COMPRESSOR
Title (en)
METHOD FOR CONTROLLING THE OPERATION OF A COMPRESSOR
Title (de)
VERFAHREN ZUR STEUERUNG DES BETRIEBS EINES KOMPRESSORS
Title (fr)
PROCÉDÉ DE COMMANDE DU FONCTIONNEMENT D'UN COMPRESSEUR
Publication
Application
Priority
- EP 2009054431 W 20090415
- DE 102008028781 A 20080617
Abstract (en)
[origin: WO2009153077A1] In a method for controlling the operation of a compressor, the compressor is switched off by a controller for preventing thermal damage if an estimated temperature value calculated by the controller exceeds an upper threshold value. For this purpose the controller calculates a cooling function as a state variable utilizing the estimated temperature value, said cooling function representing the chronological course of the cooling of the compressor. According to the invention the controller determines the cooling function based on at least one first and one second estimated temperature value which are associated with points of the compressor that are at spatial distances to each other, the determination being such that the cooling function is determined based on the temperature difference between the first and the second estimated temperature value.
IPC 8 full level
F04B 49/06 (2006.01); F04B 49/10 (2006.01)
CPC (source: EP US)
F04B 49/065 (2013.01 - EP US); F04B 49/10 (2013.01 - EP US); F04B 2201/0801 (2013.01 - EP US)
Citation (search report)
See references of WO 2009153077A1
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)
DE 102008028781 A1 20091224; EP 2304238 A1 20110406; EP 2304238 B1 20150107; US 2011052422 A1 20110303; US 9932978 B2 20180403; WO 2009153077 A1 20091223
DOCDB simple family (application)
DE 102008028781 A 20080617; EP 09765657 A 20090415; EP 2009054431 W 20090415; US 94312810 A 20101110