Apparatus for recycling collected exhaust particles
The method and apparatus for controlling particulate emissions from a combustion apparatus, such as a diesel engine is disclosed. Diesel engine exhaust particles are electrically charged during the formation of the particles in the engine combustion chamber. A particle collector is used to collect the electrically charged particles on collecting structures connected to a high voltage power supply and ground. The collecting structures of the particle collector can be a plurality of parallel metal plates, spaced cylindrical rods, or concentrically located cylindrical members. A fibrous matrix can be located adjacent the particle collecting structure to collect the charged particles as they move through the matrix. In one embodiment, the collected particles separate from the collecting structures and return to the engine intake. In another embodiment, a removable collecting cartridge has electrically conductive plates for collecting the charged particles. The entire cartridge is removed for cleaning or replacement. The hot exhaust gas from the engine can be used to oxidize the collected particles. The collected particles that are not oxidized can be separated from the collecting structures and re-entrained into the gas. The re-entrained particles are larger than the particles formed in the combustion apparatus. The large particles can be removed by a downstream particle collection device or mixed with fuel for the engine.
- Assignee:
- Minnesota, University Of Regents
- Patent Number(s):
- US 4316360
- OSTI ID:
- 5446503
- Resource Relation:
- Patent File Date: Filed date 22 Aug 1979; Other Information: PAT-APPL-068703
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
DIESEL ENGINES
AIR POLLUTION CONTROL
EXHAUST GASES
POLLUTION CONTROL EQUIPMENT
PARTICULATES
RECYCLING
SEPARATION PROCESSES
DESIGN
AIR
COMBUSTION CHAMBERS
CYCLONE SEPARATORS
ELECTROSTATIC PRECIPITATORS
FLUID FLOW
FUELS
PUMPS
CONCENTRATORS
CONTROL
ENGINES
EQUIPMENT
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
INERTIAL SEPARATORS
INTERNAL COMBUSTION ENGINES
PARTICLES
POLLUTION CONTROL
SEPARATION EQUIPMENT
WASTES
330102* - Internal Combustion Engines- Diesel
330705 - Emission Control- Particulates