Silencer in a refrigeration system

Details Silencer in a refrigeration system Silencer in a refrigeration system

1981-07-16

1983-05-03

King, Lloyd L.

Refrigeration

Muffler or sound dampener

F25D 1900

Patent

active

043816517

ABSTRACT:
When a fluid is jetted from an orifice having a small diameter into an ample space having a much greater cross-sectional area than the orifice, as in the case of a refrigerant jetted from a restriction or orifice into a refrigerant pipe of a refrigeration system, jet noise of high frequency is generated in the region around the orifice. In order to suppress the generation of this jet noise, the present invention provides a silencer which includes a casing, an orifice of a small diameter arranged in the casing for jetting a refrigerant into the casing and an obstruction disposed in the casing at a position within a distance which is 5 times as large as the diameter of the orifice. The obstruction can have various forms such as bar-like form, disc-like form and so forth and can be made from various materials such as rubbers, plastics and metals. The obstruction disposed at such a position cause a change of pattern of the fluid flow to effectively suppress the generation of noise.

REFERENCES:
patent: 2986017 (1961-05-01), Butts

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