Diesel engine particulate trap regeneration system

Patent · Tue Jul 07 04:00:00 EDT 1987

OSTI ID:6256044

Hardy, J A

A particulate trap system is described comprising: a particulate trap for filtering exhaust gas entrained particles; a bypass conduit in parallel with the particulate trap, the particulate trap and by-pass conduit connected to carry engine exhaust gas by suitable piping; valve means for directing exhaust gas to the trap or the bypass conduit; burner means upstream of the trap for burning the filtered particles, including a fuel and air supply systems, including a fuel source, a fuel pump, and means for varying the pressure of the fuel supplied to the burner means. The means varies further including two pressure relief valves in parallel with each other and both in parallel with the fuel source and pump. A means opens and closes one of the pressure relief valves; and means for controlling the position of the valve means and the operation of the burner means.

• Assignee: Garrett Corp., Los Angeles, CA
• Patent Number(s): US 4677823
• OSTI ID: 6256044
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102 -- Internal Combustion Engines-- Diesel
330705* -- Emission Control-- Particulates
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION CONTROL
BURNERS
CONTROL
CONTROL EQUIPMENT
DIESEL ENGINES
ENGINES
EQUIPMENT
EXHAUST GASES
FILTERS
FILTRATION
FLOW REGULATORS
FLUIDS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
PARTICLES
PARTICULATES
POLLUTION CONTROL
PRESSURE CONTROL
PUMPS
REGENERATION
RELIEF VALVES
SEPARATION PROCESSES
VALVES
WASTES