Diesel exhaust particulate trap with axially stacked filters
An elongated particulate trap is disclosed, to fit the area usually occupied by the vertical cylindrical muffler, as on a large diesel truck, consists of rings of axial flow filter elements and a disc-like axial flow end filter element stacked in a trap housing, having an exhaust inlet and outlet at opposite ends, so as to provide a central flow passage for entry of exhaust gases via the exhaust inlet and so as to define with the trap housing and exhaust passage in flow communication with the exhaust outlet. The filter elements are stacked in spaced apart relationship to each other whereby to provide an axial gap therebetween to allow radial flow on one face of the filter elements. The axial gaps are sealed alternately on inner and outer radial ends to define outlet and inlet passages, respectively and to force axial flow through the filter elements whereby particulates will be removed from the exhaust gases.
- Assignee:
- General Motors Corp.
- Patent Number(s):
- US 4419113
- OSTI ID:
- 6687789
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330102* -- Internal Combustion Engines-- Diesel
330705 -- Emission Control-- Particulates
AIR POLLUTION CONTROL
CONTROL
DESIGN
DIESEL ENGINES
ENGINES
EXHAUST GASES
FILTERS
FILTRATION
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
PARTICLES
PARTICULATES
POLLUTION CONTROL
SEPARATION PROCESSES
STACKS
WASTES