EP 0037102 A1 19811007 - Refrigeration system with clearance seal and discrete braking element.
Title (en)
Refrigeration system with clearance seal and discrete braking element.
Title (de)
Kühlsystem mit einem Spieldichtungselement und mit einem separaten Bremselement.
Title (fr)
Système frigorifique avec une garniture d'étanchéité à jeu libre et un élément de freinage séparé.
Publication
Application
Priority
US 13514180 A 19800328
Abstract (en)
In a refrigeration system such as a split Stirling system, fluid seals associated with the reciprocating displacer are virtually dragless clearance seals (53, 50). Movement of the displacer relative to the pressure variations in the working volume of gas is retarded by a discrete braking element (60, 62). Because it is not necessary that the brake providing any sealing action, the brake can be designed for greater durability and less dependence on ambient and operating temperatures. Similarly, the clearance seal (53, 59) can be formed of elements having low thermal expansion such that the seal is not temperature dependent. In the primary embodiments the braking element (60, 62) is a split fraction brake.
IPC 1-7
IPC 8 full level
F02G 1/043 (2006.01); F02G 1/044 (2006.01); F02G 1/053 (2006.01); F25B 9/14 (2006.01)
CPC (source: EP)
F02G 1/0445 (2013.01); F02G 1/0535 (2013.01); F25B 9/14 (2013.01); F02G 2250/18 (2013.01); F02G 2258/10 (2013.01); F05C 2225/08 (2013.01)
Citation (search report)
- GB 732720 A 19550629 - PHILIPS NV
- US 4036018 A 19770719 - BEALE WILLIAM T
- US 4019335 A 19770426 - BROWNING CALVIN W
- US 3958841 A 19760525 - BRAUN ANTON
Designated contracting state (EPC)
CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0037102 A1 19811007; IL 62493 A 19840531; JP S57112661 A 19820713
DOCDB simple family (application)
EP 81102335 A 19810327; IL 6249381 A 19810326; JP 4610681 A 19810328