Control valve

Details Control valve Control valve

1975-12-08

1976-07-20

Cline, William R.

Fluid handling

Flow affected by fluid contact, energy field or coanda effect

Utilizing particular fluid

137251, F16K 900, F16K 3106

Patent

active

039701123

ABSTRACT:
A refrigerant control valve for an air conditioning system including a flow passage formed by a tubular member of non-magnetizable material encircled by an annularly shaped electromagnetic coil. The electromagnet is housed in a shell having an inner cylindrical wall located adjacent the tubular member and which extends from one end of the shell toward the second end and terminating therebetween to form an end surface. The second end of the housing shell has a threaded opening which encircles the tubular member and into which a calibration nut or member extends. The calibration member has an end surface which is spaced closely from the end surface of the cylindrical wall by rotation of the calibration member to produce a desired magnetic field therebetween when the electromagnetic coil is energized. The magnetic field across the end surfaces attracts an accumulation of small iron particles which are mixed with the refrigerant to the inner wall of the tubular member in a location near the spaced end surfaces and thereby restricts fluid flow through the tubular member.

REFERENCES:
patent: 936074 (1909-10-01), Annable
patent: 2869818 (1959-01-01), Fleuret
patent: 3010471 (1961-11-01), Gross
patent: 3406704 (1968-10-01), Van Fosser
patent: 3463365 (1969-08-01), Fillon
patent: 3485254 (1969-12-01), Ernst

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