EP 0979973 A1 20000216 - Wall duct with a collar counteracting recirculation
Title (en)
Wall duct with a collar counteracting recirculation
Title (de)
Mauerdurchführung mit Rand zur Verhinderung der Rezirkulation
Title (fr)
Traversée de mur avec collier empêchant la recirculation
Publication
Application
Priority
NL 1009852 A 19980812
Abstract (en)
A wall duct (1) with a supply pipe (3) for air and a discharge pipe (2) for flue gases situated inside the supply pipe (3) has a discharge aperture (4) formed by one end of the discharge pipe (2) and supply apertures (6) provided in the periphery of the supply pipe (3). A collar (8) is fitted in order to prevent waste gases from flowing back from the discharge aperture (4) to the supply apertures (6). According to the invention, in order to avoid a too great air resistance, said collar (8) does not extend beyond the discharge aperture (4). The collar (8) is preferably provided with an opening (9), which is situated at a distance from the supply apertures (6). <IMAGE>
IPC 1-7
IPC 8 full level
F23L 17/04 (2006.01)
CPC (source: EP)
F23L 17/04 (2013.01)
Citation (search report)
- [A] EP 0317031 A1 19890524 - FASTO BV [NL]
- [A] FR 2360829 A1 19780303 - LEBLANC SA E L M [FR]
- [A] FR 2298062 A1 19760813 - LEBLANC SA E L M [FR] & NL 183106 A
- [A] PATENT ABSTRACTS OF JAPAN vol. 012, no. 039 (M - 665) 5 February 1988 (1988-02-05)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0979973 A1 20000216; EP 0979973 B1 20040121; DE 69914265 D1 20040226; NL 1009852 C2 20000215
DOCDB simple family (application)
EP 99202542 A 19990802; DE 69914265 T 19990802; NL 1009852 A 19980812