Global Patent Index - EP 0790460 A3

EP 0790460 A3 2000-03-08 - Heat recovery boiler with finned tubes

Title (en)

Heat recovery boiler with finned tubes

Title (de)

Abhitzekessel mit Rippenrohren

Title (fr)

Chaudière de récupération avec des tubes à ailettes

Publication

EP 0790460 A3 (DE)

Application

EP 97102155 A

Priority

IT MI960303 A

Abstract (en)

[origin: EP0790460A2] The boiler has tubes (1) with fins (2), through which hot gas, possibly exhaust gas, flows. It has guide sheets (5) for the gas flow between the tubes in a lower row and those in an upper row, guiding the flow to an upper tube (1,2). The finned tubes of a first horizontal row are aligned with the tubes of the next row. Between two adjacent tubes there may be a funnel-like outlet region for the hot gas, in which the apex of the V-shaped guide sheet is fitted. The sheet extends over the entire length of the tube.

IPC 1-7 (main, further and additional classification)

F22B 1/18; F22B 37/10; F28F 13/06

IPC 8 full level (invention and additional information)

F22B 37/10 (2006.01); F28F 1/24 (2006.01); F28F 13/06 (2006.01)

CPC (invention and additional information)

F28F 1/24 (2013.01); F22B 37/101 (2013.01); F28F 13/06 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE

EPO simple patent family

EP 0790460 A2 19970820; EP 0790460 A3 20000308; IT 1282643 B1 19980331; IT MI960303 A1 19970818; IT MI960303 D0 19960216

INPADOC legal status


2002-01-23 [18W] WITHDRAWN

- Date of withdrawal: 20011128

2000-11-15 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000904

2000-03-08 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE

2000-03-08 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7F 22B 1/18 A, 7F 22B 37/10 B, 7F 28F 13/06 B

1997-08-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE