EP 0326880 A3 19901107 - AUTOMATIC DEVICE FOR MODULATING THE FLOW OF COMBUSTION AIR AND GAS IN GAS HEATING APPARATUS
Title (en)
AUTOMATIC DEVICE FOR MODULATING THE FLOW OF COMBUSTION AIR AND GAS IN GAS HEATING APPARATUS
Publication
Application
Priority
IT 1926788 A 19880201
Abstract (en)
[origin: EP0326880A2] The automatic modulator device of the flow combustion air and gas for a gas heating apparatus provided with a suction fan (5) for the suction of burnt gas comprises a control means (6) for controlling the number of revolutions of the suction fan depending on the desired water temperature, a pneumatic circuit connecting the inlet (10) of sucked combustion air to the firebox (1), a venturi (7) arranged at the inlet of said pneumatic circuit and a transducer (14) controlling the metering of the combustible gas.
IPC 1-7
IPC 8 full level
CPC (source: EP)
F23N 1/027 (2013.01); F23N 2233/02 (2020.01)
Citation (search report)
- [Y] GB 2187000 A 19870826 - RINNAI KK
- [Y] DE 3401665 A1 19840809 - SIT LA PRECISA SPA [IT]
- [A] EP 0250667 A1 19880107 - BRITISH GAS CORP [GB]
- [A] EP 0108349 A2 19840516 - VAILLANT JOH GMBH & CO [DE]
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR LI LU NL SE
DOCDB simple family (publication)
EP 0326880 A2 19890809; EP 0326880 A3 19901107; EP 0326880 B1 19930414; AT E88261 T1 19930415; DE 68905932 D1 19930519; DE 68905932 T2 19930722; ES 2039710 T3 19931001; IT 1217331 B 19900322; IT 8819267 A0 19880201
DOCDB simple family (application)
EP 89101018 A 19890120; AT 89101018 T 19890120; DE 68905932 T 19890120; ES 89101018 T 19890120; IT 1926788 A 19880201