EP 4191135 A1 20230607 - AN AIR-GAS MIXING UNIT FOR AN AIR-GAS MIXTURE BURNING APPLIANCE
Title (en)
AN AIR-GAS MIXING UNIT FOR AN AIR-GAS MIXTURE BURNING APPLIANCE
Title (de)
LUFT-GAS-MISCHEINHEIT FÜR EINE LUFT-GAS-MISCHUNGSVERBRENNUNGSVORRICHTUNG
Title (fr)
UNITÉ DE MÉLANGE AIR-GAZ POUR UN APPAREIL DE COMBUSTION DE MÉLANGE AIR-GAZ
Publication
Application
Priority
GB 202117438 A 20211202
Abstract (en)
In an air-gas mixing unit for an air-gas mixture burning appliance, comprising: at least one air-gas mixer (118), an air supply (112) with an airway (212), and a gas supply (116) with a gas channel (216) that is connected to a gas governor (210), wherein the gas governor comprises: a gas valve (215) that is adapted to control gas pressure in the gas channel (216) dependant on an air pressure signal (235) that is indicative of a static air pressure in the air way, and a gas restrictor (250) that restricts flow of gas from the gas valve to a point of mixing (119); the gas restrictor is interchangeable between at least one first gas restrictor that is embodied to form a gas flow with a first Reynolds number and at least one second gas restrictor that is embodied to form a gas flow with a second Reynolds number.
IPC 8 full level
F23N 1/00 (2006.01)
CPC (source: EP GB)
F23D 14/62 (2013.01 - GB); F23D 14/70 (2013.01 - GB); F23N 1/00 (2013.01 - EP GB); F23N 2225/04 (2020.01 - EP); F23N 2900/05181 (2013.01 - EP)
Citation (search report)
- [IA] EP 0450173 A1 19911009 - LANDIS & GYR BETRIEBS AG [CH]
- [IA] DE 19749510 A1 19990512 - BUDERUS HEIZTECHNIK GMBH [DE]
- [IA] JP S60213729 A 19851026 - MATSUSHITA ELECTRIC IND CO LTD
- [A] "Industrial & Commercial Thermal", 31 December 2016, HONEYWELL - KROM_SCHRÖDER, article HONEYWELL - KROM_SCHRÖDER: "Industrial & Commercial Thermal", pages: 1 - 16, XP093041927
- [A] "Viessmann Serviceanleitung Vitodens 100", 30 April 1999, article VIESSMANN: "Viessmann Serviceanleitung Vitodens 100", pages: 1 - 88, XP093042190
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4191135 A1 20230607; GB 202117438 D0 20220119; GB 2613391 A 20230607
DOCDB simple family (application)
EP 22202352 A 20221019; GB 202117438 A 20211202