EP 2195627 A4 20130731 - APPARATUS AND METHOD FOR MONITORING AND REGULATING CRYOGENIC COOLING
Title (en)
APPARATUS AND METHOD FOR MONITORING AND REGULATING CRYOGENIC COOLING
Title (de)
VORRICHTUNG UND VERFAHREN ZUM ÜBERWACHEN UND REGELN VON KRYOGENISCHER KÜHLUNG
Title (fr)
APPAREIL ET PROCÉDÉ POUR SURVEILLER ET RÉGULER UN REFROIDISSEMENT CRYOGÉNIQUE
Publication
Application
Priority
- US 2008074465 W 20080827
- US 96847907 P 20070828
Abstract (en)
[origin: WO2009032689A2] An apparatus and method for monitoring and/or controlling cryogenic cooling by measuring the opacity of the vapor cloud (113) generated from a cryogenic cooling device (112). The opacity is determined by measuring the reduction in intensity of a light beam (127) passed through the vapor cloud (1 13). The opacity measurements are used to control an operating parameter of the system, such as the cooling rate of the cryogenic cooling device (1 12). The opacity measurements may be normalized to compensate for variables, other than temperature of the workpiece (119) and cooling rate, which may affect the opacity of the vapor cloud (113).
IPC 8 full level
G01K 13/00 (2006.01); B21B 37/74 (2006.01); B23Q 11/10 (2006.01); G01K 11/00 (2006.01)
CPC (source: EP US)
F25D 29/001 (2013.01 - EP US); G01K 11/00 (2013.01 - EP US); G01N 21/534 (2013.01 - EP US)
Citation (search report)
- [X] US 2004001182 A1 20040101 - DYNER CHAD D [US]
- [A] US 2002189413 A1 20021219 - ZURECKI ZBIGNIEW [US], et al
- [A] FR 1564042 A 19690418
- [A] JP 2006337326 A 20061214 - TOYOTA MOTOR CORP, et al
- [A] PIKKULA B M ET AL: "Cryogen spray cooling: Effects of droplet size and spray density on heat removal.", LASERS IN SURGERY AND MEDICINE 2001, vol. 28, no. 2, 2001, pages 103 - 112, XP002699060, ISSN: 0196-8092
- See references of WO 2009032689A2
Citation (examination)
US 4955206 A 19900911 - LANG GARY D [US], et al
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 MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2009032689 A2 20090312; WO 2009032689 A3 20090903; BR PI0815928 A2 20170516; CA 2696239 A1 20090312; CN 101842678 A 20100922; CN 101842678 B 20120516; EP 2195627 A2 20100616; EP 2195627 A4 20130731; MX 2010002065 A 20100315; US 2011083447 A1 20110414
DOCDB simple family (application)
US 2008074465 W 20080827; BR PI0815928 A 20080827; CA 2696239 A 20080827; CN 200880114431 A 20080827; EP 08798797 A 20080827; MX 2010002065 A 20080827; US 67524608 A 20080827