Sit S.p.a.

Sit La Precisa S.p.a. Con Socio Unico

Visionar S.r.l.

Ln 2 S.r.l. a Socio Unico

Antonio Ranalli

Michele Marcantoni

Massimo Lenti

Rosalino Usci

Gianfranco Scribano

Paolo Mazzieri

Andrea Andreucci

Francesco Tanoni

An electric motor, particularly for fans for combustion air, or for an air/combustion gas mixture, in gas burners, includes a stator assembly, which in turn includes a lamination pack provided with a perimetric frame with at least one pair of pole shoes, each one of which is constituted by a winding body and an expanded head; a frame for supporting the lamination pack; and a spool of conducting wire for each pole shoe, with the interposition of an insulating support. The assembly further includes elements for reducing rotational friction, for the driving shaft of a rotor, and accommodation parts for the elements for reducing rotational friction. The motor also includes a rotor with a driving shaft, wherein the perimetric frame and pole shoes are mutually distinct elements joined with fixing components.

Electric motor, in particular for fans for combustion air, or for an air/combustion gas mixture, in gas burners, stator assembly for such electric motor, and method of assembly for such stator assembly

A mixer device for burner equipment includes flow guide means for guiding an air-gas mixture to the intake of a fan rotatable about a first axis, the guide means including a tubular Venturi effect conduit structure with axially symmetric contiguous converging and diverging portions about a second axis, a section being provided between the portions of conduit into which the gas flow is delivered for mixing with the air flow supplied through the converging portion. The fan's axis of rotation does not coincide with the axis of longitudinal development of the Venturi effect conduit, the offset between the first and second axes allows placement of a valve which supplies the gas flow into the Venturi effect conduit with a configuration in which the projection of the overall dimensions of the Venturi effect conduit and of the valve unit, in the rotational axis direction, lies within the fan's cover plate projection.

Air-gas mixer device for premix burner equipment

Premix gas burner

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Montefano, Italy

Antonio Ranalli