초록 ▼

A hybrid burner system is disclosed which incorporates features of continuous burners and pulse combustion devices. A combustion chamber is fitted with one-way air inlet valves, an orificed or small sized exhaust outlet valve and a pressurized, gas inlet which is externally actuated in a periodic ma

A hybrid burner system is disclosed which incorporates features of continuous burners and pulse combustion devices. A combustion chamber is fitted with one-way air inlet valves, an orificed or small sized exhaust outlet valve and a pressurized, gas inlet which is externally actuated in a periodic manner to produce combustion pulses during operation. The combustion pulses generate heat, force the products of combustion from the burner chamber and cause combustion air to periodically enter the chamber in a self-aspirating manner. Combustion occurs silently during the entire time the fuel is externally pulsed because of the way a fuel/air mixture is developed in a chamber which is filled with combustion air prior to fuel introduction. A spark plug electrode-stabilizing rod arrangement insures consistent ignition while a flame front is stabilized and propagated. The burner arrangement is self-contained in a recirculating heat exchange application where a pulse opening is provided at a precise position relative to the heat combustion chamber. A pulse line taps the pressure pulses produced during the burner operation to provide a fairly constant fluid flow for use in a closed-loop system where the burner supplies the heat input to the system.

대표청구항 ▼

A pulse combustion type system comprising: a combustion chamber having a one-way air inlet opening, an exhaust outlet and a fuel inlet; ignition means in said chamber for igniting a combustible mixture of combustion air and fuel in said chamber; gas pressurizing means for pressurizing a source of ga

A pulse combustion type system comprising: a combustion chamber having a one-way air inlet opening, an exhaust outlet and a fuel inlet; ignition means in said chamber for igniting a combustible mixture of combustion air and fuel in said chamber; gas pressurizing means for pressurizing a source of gaseous fuel in fluid communication with said gas inlet; timing valve means cooperating with said gas pressurizing means for pulsing a metered amount of fuel as a free standing jet during a fixed time period through said fuel inlet whereby said fuel is essentially mixed with said combustion air through entrainment and a portion thereof ignited as it is metered into said combustion chamber past said ignition means and thereafter combusted to produce a pressurized pulse at low noise levels, said timing valve means actuated only after said combustion air has been admitted through said one-way air inlet to substantially fill said combustion chamber; and said gas inlet including a gas manifold having a plurality of gas orifices for directing a plurality of gas jet streams into said chamber.