EP 1844236 A1 20071017 - A SYSTEM AND A METHOD FOR CAPACITY CONTROL IN A SCREW COMPRESSOR
Title (en)
A SYSTEM AND A METHOD FOR CAPACITY CONTROL IN A SCREW COMPRESSOR
Title (de)
SYSTEM UND VERFAHREN ZUR STEUERUNG DER LEISTUNG EINES SCHRAUBENVERDICHTERS
Title (fr)
SYSTEME ET PROCEDE POUR LE CONTROLE DE LA CAPACITE DANS UN COMRESSEUR A VIS
Publication
Application
Priority
- IN 2006000038 W 20060201
- IN 85CH2005 A 20050202
Abstract (en)
[origin: US2008286087A1] A system and a method for implementing capacity control in a screw compressor, said system comprising; a screw compressor, said compressor driven by a multi-capacity (speed and power) motor to compress air or gas medium, a bypass inlet member with a bypass valve, extending from the high pressure zone to the low pressure zone of the screw compressor to recirculate the gaseous medium, a bypass valve controller functionally connected to said bypass valve, a motor controller functionally connected to the motor to effect multi-capacity (speed and power) operations, a main processing control unit disposed to control the bypass valve and multi-capacity (speed and power) operations, measuring means disposed on the compressed medium passage for measuring the changes in the pressure and/or temperature changes in the form of signals, a signal converter functionally connected to the main processing unit and the measuring means to receive the signals, and said motor controller and bypass valve controller are functionally connected to the main processing unit to perform the capacity control of the screw compressor.
IPC 8 full level
F04C 18/16 (2006.01)
CPC (source: EP US)
F04C 18/16 (2013.01 - EP US); F04C 28/26 (2013.01 - EP US); F04C 28/08 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006095364 A1 20060914; AT E504743 T1 20110415; CN 100562666 C 20091125; CN 101163885 A 20080416; DE 602006021137 D1 20110519; EP 1844236 A1 20071017; EP 1844236 B1 20110406; HK 1116852 A1 20090102; US 2008286087 A1 20081120
DOCDB simple family (application)
IN 2006000038 W 20060201; AT 06711366 T 20060201; CN 200680010594 A 20060201; DE 602006021137 T 20060201; EP 06711366 A 20060201; HK 08111070 A 20081006; US 88337306 A 20060201