Global Patent Index - EP 3475632 A1

EP 3475632 A1 20190501 - A METHOD FOR CONTROLLING PRESSURE AND OIL LEVEL IN AN OIL RECEIVER OF A VAPOUR COMPRESSIONS SYSTEM

Title (en)

A METHOD FOR CONTROLLING PRESSURE AND OIL LEVEL IN AN OIL RECEIVER OF A VAPOUR COMPRESSIONS SYSTEM

Title (de)

VERFAHREN ZUR STEUERUNG DES DRUCKS UND DES ÖLSTANDS IN EINEM ÖLAUFNEHMER EINES DAMPFKOMPRESSIONSSYSTEMS

Title (fr)

PROCÉDÉ DE RÉGULATION DE PRESSION ET DE NIVEAU D'HUILE DANS UN RÉCEPTEUR D'HUILE D'UN SYSTÈME DE COMPRESSION DE VAPEUR

Publication

EP 3475632 A1 20190501 (EN)

Application

EP 17731902 A 20170621

Priority

  • DK PA201600374 A 20160624
  • EP 2017065325 W 20170621

Abstract (en)

[origin: WO2017220702A1] A method for controlling a valve arrangement (10) interconnecting at least one oil separator (8) and an oil receiver (9) in a vapour compression system (1) is disclosed. A pressure difference between a pressure prevailing inside the oil separator(s) (8) and a pressure prevailing inside the oil receiver (9) is obtained. Then a duration for an open time of an open/close sequence of the valve arrangement (10) is derived, based on the obtained pressure difference, and the valve arrangement (10) is controlled in accordance with the derived duration of an open time. The supply of oil to the oil receiver (9) can be accurately controlled, regardless of the operating conditions.

IPC 8 full level

F25B 31/00 (2006.01)

CPC (source: EP US)

F25B 31/002 (2013.01 - EP US); F25B 43/02 (2013.01 - US); F25B 2700/1932 (2013.01 - EP US)

Citation (search report)

See references of WO 2017220702A1

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

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2017220702 A1 20171228; CN 109312969 A 20190205; EP 3475632 A1 20190501; US 2019264962 A1 20190829

DOCDB simple family (application)

EP 2017065325 W 20170621; CN 201780039085 A 20170621; EP 17731902 A 20170621; US 201716308509 A 20170621