Mcquay-perflex, Inc.

Mcquay-perfex Inc.

Fluidtech Corporation

Gene W Osheroff

Laurence McGann

The present invention is one that uses the novel feature of fluidics to control the flow of conditioned air in an air-conditioning system. More specifically, in one species of the invention, fluidic amplifier apparatus controls the flow of hot water into the coils and, therefore, controls the changeover from cool to warm air in the main duct, and in a second species it not only controls the mentioned changeover but also the volume of the conditioned air flowing in the duct.

Fluidically-controlled air-conditioning system

The present invention involves the insertion and use of a tube in one of the outlet channels of a pure fluid bistable amplifier. The amplifier will function so long as the cross-sectional area of the tube is less than twenty percent (20%) of the cross-sectional area of the outlet in which it is mounted. The advantage of the tube is that velocity-pressure recovery can be as high as eighty percent (80%) as compared to forty eight percent (48%) without it.

Fluidic-amplifier device having tube in outlet channel

In the present invention, four valves are connected in tandem to form a closed loop. A pair of inlet channels and a pair of outlet channels are connected between the valves and in such a manner as to form a bridge-circuit arrangement. The valves are preferably disc-shaped chambers with orifices in their rooves by means of which they interconnect with one another. In each valve is also located a diaphragm resting on the floor of the valve chamber and which may be raised and pressed against the roof of the chamber to cover the orifices there, thereby closing that particular valve. By thusly closing one pair of diagonally opposing valves or the other, the connections between the inlet and outlet channels can be reversed. The diaphragms can be raised by applying a relatively high pressure to their undersides through orifices located in the floors of their respective valve chambers.

Diaphragm reversing valve

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.

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Las Vegas, NV, United States of America

Gene W Osheroff