Temperature control valve without moving parts

Details Temperature control valve without moving parts Temperature control valve without moving parts

1996-02-07

1997-05-06

Chambers, A. Michael

Fluid handling

Flow affected by fluid contact, energy field or coanda effect

Means to regulate or vary operation of device

137835, 137340, F15C 104

Patent

active

056261667

ABSTRACT:
The present invention relates to a temperature control valve having no mog parts. The temperature control valve has a fluid inlet and a fluid outlet. A fluidic amplifier communicates with the fluid inlet and is characterized by a first outlet port for distributing a flow of fluid to an external device such as a heat exchanger, a second outlet port in communication with the fluid outlet, and two control ports. A feedback loop is used to control the fluidic amplifier. The feedback loop has a first channel with a temperature sensitive element connected to one of the control ports and a second channel with a bias resistor for setting a desired output temperature for fluid flowing through the fluid outlet. The first and second channels create a pressure difference between the control ports of the fluidic amplifier corresponding to the desired outlet temperature.

REFERENCES:
patent: 3712322 (1973-01-01), Cleary
patent: 3732883 (1973-05-01), Munch
patent: 4196626 (1980-04-01), Manion et al.
patent: 4276895 (1981-07-01), Drzewiecki

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