Air-conditioning system apparatus
AssigneeFluidtech Corporation
InventorGene W. Osheroff
Life of this patent
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Abstract
The present invention relates to an air-conditioning system that employs fluidic principles to provide temperature control. A fluidic oscillator is utilized to control the conditioning process in which the imput of primary and secondary air to the system is controlled in a push-pull manner so that the supply of primary air increases to the extent the supply of secondary air decreases, and vice versa. Accordingly, the fluidic apparatus regulates the ratio of primary to secondary air directed into the room to be conditioned.
Claims16
An air-conditioning system to which cool primary air and warm secondary air are supplied via respectively different paths, the system providing an appropriate mixtures of the cool and warm air to a room to be conditioned, said system comprising:
- a first damper mechanism mounted only in the path of the primary air and operable only to control the volume thereof flowing to the room;
- a second damper mechanism mounted only in the path of the secondary air and operable only to control the volume thereof flowing to the room;
- a thermovalve mechanism mounted in the room to be conditioned;
- and fluidic amplifier means coupled to said first and second damper mechanisms, coupled to said thermovalve and coupled to top off a portion of the primary air flowing to the system, said fluidic amplifier means being operable in response to the flow thereto of said tapped-off portion of primary air and under the control of said thermovalve to simultaneously and synchronously open one of said dampers and close the other of them to provide an appropriate mixture of primary and secondary air to the room, the ratio of primary to secondary air corresponding to the difference between the ambient room temperature and the temperature setting of said thermovalve mechanism.
In an air-conditioning system, the combination of a room within a building having a top wall and a false ceiling spaced therebelow and cooperating therewith to define a plenum space above the room, a plurality of electric lighting fixtures laterally spaced apart across said ceiling and having troffers set into the ceiling and said plenum space and secured to the ceiling and said plenum space and secured to the ceiling, said troffers having lamp bulbs therein lighting said room and heating said troffers so as to heat the air in said plenum space and adajcent said ceiling, an inlet passage through said ceiling establishing communication between the upper part of said room adjacent said ceiling and said plenum space for the upward flow of heated air from the room into such space, an outlet passage extending downwardly through said ceiling for the discharge of conditioned air into said room, said conditioned air being a mixture of said heated air and cool primary air fed to the system, an enclosed structure mounted in said plenum space, a Venturi tube mounted within said structure and coupled at its output end to said outlet passage, a duct for feeding said cool primary air to said Venturi tube, a first damper mechanism mounted in said duct and operable to control only the quantity of cool primary air flowing to said Venturi tube, a second damper mechanism mounted in a wall of said structure and operable to control only the quantity of heated air flowing into said structure from said plenum space, and fluidic amplifier means coupled to said first and second damper mechanisms and simultaneously and synchronously operating them in a push-pull manner to provide a mixture of said cool and heated air at said outlet passage that substantially meets the varying conditioning needs of the room.
Dependencies are inferred from the claim text.