Suppressor of gas pressure fluctuation and noise

Details Suppressor of gas pressure fluctuation and noise Suppressor of gas pressure fluctuation and noise

1988-11-29

1990-03-06

Fuller, B. R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181229, 181240, 181256, 181403, F01N 108

Patent

active

049057901

ABSTRACT:
The invention provides a pressure-fluctuation and noise suppressor having low flow resistance and high effectiveness. It is especially useful as a suppressor for an oil-injection inlet system of a positive-displacement air compressor. It has a cylinderical housing separated into ante- and main chambers by a partition. A tubular suppressing element is fixed through the partition eccentrically of the axis of the housing. The inlet of the suppressing element is in the form of a nozzle in the ante-chamber that widens away from the partition. In the main chamber, the wall of the suppressing element is perforated and the end of the suppressing element in the main chamber is closed by a conical member. An outlet tube is situated on a side wall of the housing in a plane perpendicular to the axis of the housing on an axis transecting the axes of the chambers and the suppressing element. An inlet extends into the ante-chamber diagonally from the nozzle of the suppressing element.

REFERENCES:
patent: 4284162 (1981-08-01), Fshida
patent: 4330239 (1982-05-01), Gannaway

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