EP 0998645 A1 20000510 - CONTROL METHOD FOR A CRYOGENIC UNIT
Title (en)
CONTROL METHOD FOR A CRYOGENIC UNIT
Title (de)
STEUERVERFAHREN FÜR EINE KYROGENE ANLAGE
Title (fr)
PROCEDE DE REGULATION POUR UNITE CRYOGENIQUE
Publication
Application
Priority
- US 9814392 W 19980710
- US 5701397 P 19970711
Abstract (en)
[origin: WO9902916A1] Apparatus and methods for improving efficiency of a temperature conditioning system which employs a cryogenic liquid. A vapor powered ventilation motor (68) is normally powered by vapor from the low pressure end of the evaporation coils (62, 64). However, supplemental vapor (72) is provided at start-up to provide immediate ventilation. In addition, vapor which bleeds off valves is cycled through the vapor powered motor (68) or used to maintain a slight positive pressure when the system is shut down.
IPC 1-7
IPC 8 full level
F17C 9/02 (2006.01); F17C 9/04 (2006.01); F25B 19/00 (2006.01); F25D 3/10 (2006.01); F25D 17/06 (2006.01); F25B 27/00 (2006.01)
CPC (source: EP)
F17C 9/04 (2013.01); F25D 3/10 (2013.01); F25D 17/06 (2013.01); F17C 2205/0332 (2013.01); F17C 2205/0338 (2013.01); F17C 2205/0341 (2013.01); F17C 2221/013 (2013.01); F17C 2221/014 (2013.01); F17C 2221/038 (2013.01); F17C 2223/0161 (2013.01); F17C 2227/0309 (2013.01); F17C 2250/043 (2013.01); F17C 2250/0439 (2013.01); F17C 2250/0631 (2013.01); F17C 2260/032 (2013.01); F17C 2265/032 (2013.01); F17C 2270/0171 (2013.01); F17C 2270/0545 (2013.01); F25B 27/00 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 9902916 A1 19990121; AU 8395198 A 19990208; CA 2295562 A1 19990121; EP 0998645 A1 20000510; EP 0998645 A4 20010110; JP 2001518596 A 20011016
DOCDB simple family (application)
US 9814392 W 19980710; AU 8395198 A 19980710; CA 2295562 A 19980710; EP 98934433 A 19980710; JP 2000502361 A 19980710