NASA NTRS · 19700000097
Thermostatic expansion valve improved by dual pneumatic modulation
Abstract
Addition of a secondary pneumatic modulation input improves the standard devices used on thermostatic expansion valves. The valves normally meter incoming refrigerant flow through an orifice valve controlled by a valve-actuating diaphragm.
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Pringle, G.. 1970-05-01. Thermostatic expansion valve improved by dual pneumatic modulation. https://ntrs.nasa.gov/citations/19700000097
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