Pulse combustion deep fat fryer

A deep fat fryer comprising an open-top vessel adapted to hold a quantity of cooking oil, a pulse combustion burner for heating the oil, electronic means for regulating the temperature of the oil and for controlling the operating periods of said burner, and cabinet means for supporting said vessel, burner and electronic means, wherein said cabinet means includes a front wall arranged for user access to the oil and a remote back wall, said burner includes at least one combustion chamber adapted to be immersed in the oil and to provide heat exchange between combustion products and the oil, a mixer head connected to an inlet end of said chamber, means for supplying controlled air and fuel flows to said mixer head, said air flow means located substantially below said vessel in said cabinet means and having an air blower continuously operating for providing pressurized air to said mixer head and for providing a flow of air directed towards said electronic means to cool the same, said fuel flow means being supported in said cabinet means below said vessel, said burner further including a tailpipe for receiving said combustion products and being connected at one end to an outlet end of said combustion chamber and at the other end to an exhaust decoupler means for exhausting the combustion products, said tailpipe and combustion chamber cooperating to provide self-sustaining, pulse combustion of said air/fuel mixture including self-exhausting of said combustion products and self-feeding of said air and fuel, said tailpipe extending along an exterior portion of said vessel in thermal contact therewith and providing heat exchange between said combustion products and the oil, said exhaust decoupler means being positioned adjacent said combustion chamber inlet end and mixer head adjacent said back wall of said cabinet means, whereby said cabinet means is at least as small as a commercial deep fat fryer having an atmospheric burner.

A pulse combustion heating apparatus comprising a pulse combustion burner, a vessel for containing a liquid to be heated and a cabinet for supporting said burner and vessel, said burner comprising a combustion chamber having an inlet and an outlet, a mixer head connected to said inlet, means for supplying controllable flows of air and fuel to said mixer head, means for igniting said air/fuel mixture in one of said mixing head and combustion chamber, exhaust means connected to said combustion chamber outlet, said combustion chamber and exhaust means cooperating to provide a self-sustaining, resonant combustion of said air/fuel mixture including self-exhausting of combustion gases and self-feeding of air and fuel, said exhaust means including at least one tailpipe connected at one end to said combustion chamber outlet and at the other end to an exhaust decoupler adjacent said combustion chamber inlet and said mixer head, and a vent pipe connected to said exhaust decoupler for receiving combustion gases therefrom and discharging them into the atmosphere, said vessel including a vessel wall portion for confining the liquid to be heated, said combustion chamber including an imperforate wall portion extending within said vessel to provide heat transfer between combustion gasses passing through the combustion chamber and the liquid to be heated, said tailpipe extending along an exterior side of said vessel wall portion to provide heat transfer between combustion gases passing through the tailpipe and the liquid to be heated, said cabinet including a front wall arranged for user access to the liquid and a remote back wall, said combustion chamber inlet, mixer head and exhaust decoupler being mounted adjacent said back wall of said cabinet, said exhaust decoupler extending in a vertical direction beyond said vessel and above said mixer head.