EP 3891396 B1 20230607 - APPARATUS AND PROCESS FOR CONTROLLING A COMPRESSOR ASSEMBLY LUBRICATION STATUS AND REFRIGERATING MACHINE COMPRISING SAID APPARATUS
Title (en)
APPARATUS AND PROCESS FOR CONTROLLING A COMPRESSOR ASSEMBLY LUBRICATION STATUS AND REFRIGERATING MACHINE COMPRISING SAID APPARATUS
Title (de)
VORRICHTUNG UND VERFAHREN ZUR STEUERUNG DES SCHMIERSTATUS EINER VERDICHTERANORDNUNG UND KÄLTEMASCHINE BEINHALTEND EINE SOLCHE VORRICHTUNG
Title (fr)
APPAREIL ET PROCÉDÉ DE COMMANDE DU STATUT DE LUBRIFICATION D'UN ENSEMBLE COMPRESSEUR ET MACHINE DE RÉFRIGÉRATION COMPRENANT CET APPAREIL
Publication
Application
Priority
- IB 2019060364 W 20191202
- IT 201800010779 A 20181204
Abstract (en)
[origin: WO2020115639A1] Apparatus and process for controlling the lubrication of a compressor unit (15) of a refrigerating machine which is provided with an expansion valve (17) which has an adjustable degree of opening and which has an inlet (18) and an outlet (19) and which is in fluid communication with a casing (15a) of the compressor unit (15) so as to be passed through by a flow tapped from the latter. The process comprises a check procedure which comprises: - a tapping operation for drawing a flow from the compressor and passing it through the expansion valve (17); - a measurement operation which involves measuring a temperature difference which the fluid has between the inlet (18) and the outlet (19) of the expansion valve (17); - a verification operation which is positive if the modulus of the measured temperature difference exceeds a threshold value; - a replenishment operation which involves the introduction of lubricating oil into the compressor when the result of verification is positive.
IPC 8 full level
F04B 39/02 (2006.01); F04B 49/22 (2006.01); F04B 53/18 (2006.01)
CPC (source: EP)
F04B 39/02 (2013.01); F04B 39/0223 (2013.01); F04B 49/225 (2013.01); F04B 53/18 (2013.01)
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2020115639 A1 20200611; EP 3891396 A1 20211013; EP 3891396 B1 20230607; EP 3891396 C0 20230607; PL 3891396 T3 20231211
DOCDB simple family (application)
IB 2019060364 W 20191202; EP 19835720 A 20191202; PL 19835720 T 20191202