EP 1673505 B1 20080528 - SUCTION OR BLOW ROLL
Title (en)
SUCTION OR BLOW ROLL
Title (de)
SAUG- ODER BLASWALZE
Title (fr)
ROULEAU ASPIRANT OU SOUFFLANT
Publication
Application
Priority
- EP 2004052226 W 20040917
- DE 10347177 A 20031010
Abstract (en)
[origin: WO2005035868A1] The invention relates to a suction or ventilation roll of a machine for producing and/or finishing a paper, cardboard, tissue or other fibrous material web (2). Said roll comprises a rotatable, perforated roll jacket (1) and at least one pressure zone (9), which only extends over part of the roll circumference and is formed by a fixed pressure compartment (6) located in the interior of the roll and open towards the roll jacket (1). The pressure compartment (6) is connected to a negative- or excess-pressure source and is sealed in relation to the roll jacket (1) by means of at least one sealing element (7). One aim of the invention is to reduce the noise emissions. To achieve this, a substantially air-tight cover (5), which runs in the direction of the circumference and is located outside the pressure compartment (6), adjoins a sealing element (7), said cover making contact with the roll jacket (1), or being placed at a distance of less than 100 mm to the latter.
IPC 8 full level
D21F 3/10 (2006.01)
CPC (source: EP US)
D21F 3/10 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005035868 A1 20050421; AT E397121 T1 20080615; BR PI0414745 A 20061121; BR PI0414745 B1 20151208; CA 2541861 A1 20050421; DE 10347177 A1 20050512; DE 502004007303 D1 20080710; EP 1673505 A1 20060628; EP 1673505 B1 20080528; JP 2007508464 A 20070405; US 2007272384 A1 20071129
DOCDB simple family (application)
EP 2004052226 W 20040917; AT 04766819 T 20040917; BR PI0414745 A 20040917; CA 2541861 A 20040917; DE 10347177 A 20031010; DE 502004007303 T 20040917; EP 04766819 A 20040917; JP 2006530246 A 20040917; US 57518404 A 20040917