초록 ▼

A heater including a generally cylindrical shell defining its housing arranged in a very closely spaced relation to the outer periphery of its combustion chamber assembly and its fan device as it bounds a plenum chamber therebetween. The combustion chamber assembly has its discharge end adjacent the

A heater including a generally cylindrical shell defining its housing arranged in a very closely spaced relation to the outer periphery of its combustion chamber assembly and its fan device as it bounds a plenum chamber therebetween. The combustion chamber assembly has its discharge end adjacent the discharge end of the shell. The relative configuration of the outer peripheral surface of the combustion chamber assembly and that of the discharge end portion of the shell creates therebetween a passage through which the fan device, on energization thereof, produces a very high velocity flow of a thin layer of air which, on discharge, is throttled and abruptly and sharply driven into the center of the flow from the assembly. The effect of this is to moderate and influence a relative uniformity of the temperature of the discharge and rapidly project it outwardly of and considerably beyond the heater. A further consequence is the creation of such a head of pressure in the plenum chamber as to produce a greater and more uniform pressured flow of air into and about the combustion chamber. The whole provides a heater which for a given size has a heating capacity substantially greater than heretofore. The heater also features an integrated control system giving it an uncluttered interior and insuring, to a significant degree, against failure and malfunction. A preferred housing for the heater is a multi-part shell the form of which eliminates need for intervening gaskets.

대표청구항 ▼

A portable space heater comprising a housing constructed for a flow of air therethrough from an entry end to a discharge end, means defining a combustion chamber in said housing, heater operating elements including energizable means for compelling a flow of air through said housing and electrical co

A portable space heater comprising a housing constructed for a flow of air therethrough from an entry end to a discharge end, means defining a combustion chamber in said housing, heater operating elements including energizable means for compelling a flow of air through said housing and electrical controls for said operating means, means defining a protected compartment external to said housing and said housing having an opening in an area adjacent to said entry end thereof communicating the interiors of said housing and said compartment and said electrical controls including circuit board means in said compartment embodying in connection therewith the essential wiring and connections for directing power to and controlling the operation of said operating elements, the construction and arrangement utilizing the relatively remote location of the circuit board means and the cooling effect of incoming air at the entry end of said housing to insulate said circuit board means from the heat of combustion generated in said combustion chamber.