Regenerator for diesel particulate filter
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United States of America Patent
Stats
-
May 20, 1986
Grant Date -
N/A
app pub date -
Jul 12, 1984
filing date -
Jul 15, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for controlling the supply of air to a burner used to recombust diesel particulates trapped in a ceramic filter. The inventive control apparatus includes an exhaust bypass line that bypasses the filter, an air supply line leading to a burner associated with the filter, a flow control valve that adjusts the cross-sectional area for the air flow in the air supply line, a relief valve that maintains a constant difference between pressures at points upstream and downstream of the flow control valve, and a control unit that controls the degree of opening of the flow control valve. With the invention, precise control over the flow rate of secondary air is ensured.
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