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US 7,582,130 B2Granted
Coalescing filter assembly
AssigneeCummins Filtration IP, Inc.
InventorsKwok-Lam Ng, Roger Zoch, Brian Schwandt
Life of this patent
Estimating the term…
Abstract
A coalescing filter assembly having an upstream chamber, a downstream chamber, and a weephole connecting the upstream chamber to the downstream chamber. The downstream chamber includes a coalescing filter to filter a flow of gases. A passageway may be implemented between the upstream chamber and the downstream chamber to accommodate the flow of gases therethrough, while the weephole enables liquid to seep from the upstream chamber to the downstream chamber. In this manner, the weephole reduces liquid pooling in the upstream chamber without substantially compromising the efficiency or performance of the coalescing filter. A drain may connect to the downstream chamber to drain liquid collected therein.
Claims20
A coalescing filter assembly to reduce liquid pooling therein, comprising:
- a coalescing filter having an upstream chamber and a downstream chamber, the coalescing filter adapted to filter a gaseous stream in a direction from the upstream chamber to the downstream chamber;
- and
- a weephole connecting the upstream chamber to the downstream chamber to enable liquid pooling in the upstream chamber to seep to the downstream chamber,
- wherein:
- said coalescing filter has a coalescing flow path therethrough from said upstream chamber to said downstream chamber;
- said weephole has a weephole flowpath therethrough from said upstream chamber to said downstream chamber in parallel with said coalescing flowpath;
- said gaseous stream flowing along said weephole flowpath does not flow through said coalescing filter along said coalescing flowpath;
- said gaseous stream flowing alone said coalescing flowpath passes from said upstream chamber through said coalescing filter to said downstream chamber without passing through said weephole;
- said gaseous stream flowing along said weephole flowpath passes from said upstream chamber through said weephole to said downstream chamber without passing through said coalescing filter.
6 more elements
A coalescing filtration system to reduce liquid pooling therein, comprising:
- an upstream chamber;
- a downstream chamber;
- a passageway connecting the upstream chamber to the downstream chamber, the passage accommodating gases flowing from the upstream chamber to the downstream chamber;
- a filter medium residing within the downstream chamber to filter the gases flowing through the passageway;
- and
- a weephole connecting the upstream chamber to the downstream chamber to enable liquid pooling in the upstream chamber to seep from the upstream chamber to the downstream chamber,
- wherein:
- said coalescing filter has a coalescing flow path therethrough from said upstream chamber to said downstream chamber;
- said weephole has a weephole flowpath therethrough from said upstream chamber to said downstream chamber in parallel with said coalescing flowpath;
- said gaseous stream flowing along said weephole flowpath does not flow through said coalescing filter along said coalescing flowpath;
- said gaseous stream flowing along said coalescing flowpath passes from said upstream chamber through said coalescing filter to said downstream chamber without passing through said weephole;
- said gaseous stream flowing along said weephole flowpath passes from said upstream chamber through said weephole to said downstream chamber without passing through said coalescing filter.
9 more elements
A method to reduce liquid pooling in a coalescing filler assembly, comprising:
- providing an upstream chamber and a downstream chamber;
- connecting, via a passageway, the upstream chamber to the downstream chamber;
- engaging within the downstream chamber a filtration medium to filter gases flowing through the passageway;
- and
- forming within the upstream chamber a weephole to enable liquid pooling in the upstream chamber to seep from the upstream chamber to the downstream chamber,
- wherein:
- said coalescing filter has a coalescing flow path therethrough from said upstream chamber to said downstream chamber;
- said weephole has a weephole flowpath therethrough from said upstream chamber to said downstream chamber in parallel with said coalescing flowpath;
- said gaseous stream flowing along said weephole flowpath does not flow through said coalescing filter along said coalescing flowpath;
- said gaseous stream flowing along said coalescing flowpath passes from said upstream chamber through said coalescing filter to said downstream chamber without passing through said weephole;
- said gaseous stream flowing along said weephole flowpath passes from said upstream chamber through said weephole to said downstream chamber without passing through said coalescing filter.
8 more elements
A method to reduce liquid pooling in a coalescing filter assembly, comprising:
- introducing a gaseous stream to an upstream chamber in a coalescing filter assembly;
- directing the gaseous stream from the upstream chamber to a downstream chamber via a passageway connecting the upstream chamber to the downstream chamber;
- filtering the gaseous stream flowing through the passageway;
- and
- enabling liquid pooling in the upstream chamber to seep through a weephole connecting the upstream chamber to the downstream chamber,
- wherein:
- said coalescing filter has a coalescing flow path therethrough from said upstream chamber to said downstream chamber;
- said weephole has a weephole flowpath therethrough from said upstream chamber to said downstream chamber in parallel with said coalescing flowpath;
- said gaseous stream flowing alone said weephole flowpath does not flow through said coalescing filter along said coalescing flowpath;
- said gaseous stream flowing along said coalescing flowpath passes from said upstream chamber through said coalescing filter to said downstream chamber without passing through said weephole;
- said gaseous stream flowing along said weephole flowpath passes from said upstream chamber through said weephole to said downstream chamber without passing through said coalescing filter.
8 more elements
Dependencies are inferred from the claim text.