SUPERCHARGING APPARATUS FOR ENGINE
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United States of America Patent
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Issued Date -
Aug 27, 2015
app pub date -
Jan 28, 2015
filing date -
Feb 26, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An intake bypass passage is provided between an intake passage downstream of a compressor and the intake passage upstream of the compressor and provided with an ABV. The ABV is a diaphragm valve in which a housing is defined by a diaphragm to form a pressure chamber. A valve seat is provided in the intake bypass passage, and a valve element provided integrally with the diaphragm is arranged to seat on the valve seat. The valve element is urged by a spring in a direction to seat on the valve seat. A pressure passage communicated with a surge tank downstream of a throttle valve is connected to the pressure chamber. The valve element is formed with a communication hole communicating the intake passage downstream of the compressor with the pressure chamber.
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