Electric valve device, fresh air passage mechanism, and internal-combustion engine
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United States of America Patent
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Dec 29, 2020
Grant Date -
Apr 2, 2020
app pub date -
Sep 20, 2019
filing date -
Sep 28, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is an electric valve device which is capable of improving the accuracy of detecting whether there is a gas leakage from a blow-by gas passage and capable of detecting detachment of the electric valve device from a pipe of a fresh air passage. The electric valve device includes an inflow side pipe portion, an outflow side pipe portion, a barrier which partitions off the inflow side pipe portion from the outflow side pipe portion, a valve body which opens and closes an opening arranged on the barrier by moving in the axial direction, and a solenoid which drives the valve body. The inflow side pipe portion includes a bypass path which communicates with the outflow side pipe portion through a second opening separately from a passage which communicates with the outflow side pipe portion through a first opening used as the opening.
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