Expansion valve and refrigerating system

Details Expansion valve and refrigerating system Expansion valve and refrigerating system

1995-11-07

2000-12-26

Wayner, William

Valves and valve actuation

Valve

Seats

236 92B, 251368, F16K 3100, G05D 2700

Patent

active

061646245

ABSTRACT:
An expansion valve comprises an orifice formed in a valve body and a valve member fixed to a movable member. Movement of a diaphragm is transmitted to an actuating rod via a member and the actuating rod actuated the movable member to control the opening amount of the path between the valve member and the orifice. An orifice member affixed to the orifice is made of a material harder than the valve body, and free from erosion or other damage by a refrigerant, which will otherwise occur at the valve opening portion.

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Heymann, F. J., "Toward Quantitative Prediction of Liquid Impact Erosion", ASTM STP 474 American Society for Testing and Materials, pp. 212-248. (1970)

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