VAPOR FUEL TREATMENT APPARATUS
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United States of America Patent
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Issued Date -
Oct 17, 2013
app pub date -
Apr 10, 2013
filing date -
Apr 17, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A control part conducts a pulse width modulation control for a first valve and a second valve in a manner that a sum of a first flow rate of fluid flowing through a first passage and a second flow rate of fluid flowing through a second passage agrees with a target flow rate. When the target flow rate is less than a sum of the maximum of the first flow rate and the maximum of the second flow rate, the control part controls a control timing of a first signal driving the first valve and a control timing of a second signal driving the second valve to be different from each other.
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