US 4,065,277 AGranted

Inlet for cyclone-type particulate matter gas separator device

AssigneeAmerican Air Filter Company, Inc.

InventorFrancis E. Dahlem

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Abstract

A dirty gas inlet configuration for a cyclone-type particulate matter gas separator device has two annular concentrically disposed converging dirty gas channels. The outer annular channel has a plurality of gas flow directing vanes disposed therein to impart a spinning or whirling motion to a dirty gas stream passing into the separator device through the outer annular channel from outside the separator device. The inner annular channel has an adjustable dirty gas inlet for varying the volume rate of flow of dirty gas passing into the separator device through the inner annular channel from outside the separator device. The dirty gas streams exiting the outer and inner annular converging channels are mixed together in an annular mixing chamber located downstream from and coaxially disposed with the outer and inner annular channels. While mixing together, the whirling gas stream from the outer channel imparts a whirling motion to the dirty gas stream from the inner annular channel. The mixed whirling gas stream then exits the annular mixing chamber and moves downstream in the gas separator device for further processing to separate particulates therefrom.

Claims10

Dependent claims

In a cyclone particulate matter gas separator of the type having a generally cylindrical housing having an inlet opening at one end for the ingress of a dirty gas stream to be cleaned, the improvement which comprises:

first means cooperating with the housing at the inlet opening thereof to define an outer annular channel converging in a generally axial direction of the housing from the exterior to the interior of the housing for directing a first stream of dirty gas into the housing and accelerating the first stream of dirty gas;
second means cooperating with the first means to define an inner annular channel concentrically disposed with the outer annular converging channel and converging in a generally axial direction of the housing from the exterior to the interior of the housing for directing a second stream of dirty gas into the housing and accelerating the second stream of dirty gas;
means for adjustably varying the volume rate of flow of the second stream of dirty gas into the inner annular channel;
and,
gas flow directing means disposed within the outer annular channel for imparting a whirling motion to the first gas stream flowing through the outer annular channel from the exterior to the interior of the housing.

2 more elements

Dependencies are inferred from the claim text.