B - Operations – Transporting – 60 – H
Patent
B - Operations, Transporting
60
H
237/17
B60H 1/22 (2006.01)
Patent
CA 2012551
ABSTRACT OF THE DISCLOSURE This invention provides improved gas-fired heater means for supplying heat to a space, such as a vehicle cab, or the like and simultaneously therewith, heat to the engine block for running the vehicle. In the present invention, a heat exchanger is provided to simultaneously heat a coolant which supplies heat to a pre-selected environment, such as an engine block for the motor vehicle, and air to a pre-selected environment, such as the cab of a truck or tractor. Basically, the improved gas-fired space heater means comprises: an inner duct-like member having opposite front and rear ends and provided adjacent its front end with means for receiving, mixing and igniting a mixture of pressurized fuel gas and a combustion-supporting gas within its interior that is discharged through exhaust conduit means from its rear end to an exhaust outlet located adjacent to its front end; an intermediate duct-like member circumscribing the rear portion of the inner duct- like member wherein the space between the inner and intermediate duct-like member receives a fluid to be heated therein; an outer duct-like member, surrounding the inner and intermediate duct-like members and the exhaust conduit means and having opposite forward and rearward ends, with the forward and rearward ends of the outer duct-like member being respectively located adjacent to the front and rear ends of the inner duct-like member and the outer duct- like member having a fluid inlet opening located proximate to one of the opposite front and rear ends of the inner duct-like member and a fluid outlet opening located between the opposite front and rear ends of the inner duct-like member; and means for supplying a stream of pressurized fluid to the inlet opening of the outer duct-like member for discharge through the outlet opening of the outer duct-like member after having passed over the exteriors of and received heat from the inner and intermediate duct-like members and the exhaust conduit means to supply heated fluid to a space via second conduit means interconnectable between that space and the outlet opening of the outer duct-like member.
Hall Donald O.
Kent & Edgar
LandOfFree
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