EP 0135664 B1 19880727 - VERTICAL GAS PASS FOR A HEAT EXCHANGER
Title (en)
VERTICAL GAS PASS FOR A HEAT EXCHANGER
Publication
Application
Priority
CH 477383 A 19830831
Abstract (en)
[origin: US4537156A] The heat exchanger is constructed with a vertical gas flue and a hopper at the bottom end of the flue. The gas flue is shaped to have more than four sides. The hopper walls meet the wall-forming tubes of the gas flue around a boundary edge which extends over the entire periphery of the gas flue. All of the wall-forming tubes of the gas flue are bent at the boundary edge while the tubes in the walls of the hopper extend in parallel relationship to one another.
IPC 1-7
IPC 8 full level
F22B 37/10 (2006.01); F22B 37/14 (2006.01); F22B 37/20 (2006.01); F22B 37/24 (2006.01)
CPC (source: EP US)
F22B 37/146 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
EP 0135664 A2 19850403; EP 0135664 A3 19851227; EP 0135664 B1 19880727; CA 1247949 A 19890103; DE 3473026 D1 19880901; JP H0652121 B2 19940706; JP S6060403 A 19850408; PL 248385 A1 19850409; US 4537156 A 19850827
DOCDB simple family (application)
EP 84105357 A 19840511; CA 458157 A 19840705; DE 3473026 T 19840511; JP 14077084 A 19840709; PL 24838584 A 19840625; US 64379484 A 19840824