Exhaust pipe valve system of internal combustion engine
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United States of America Patent
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Jan 9, 2018
Grant Date -
Mar 10, 2016
app pub date -
Sep 1, 2015
filing date -
Sep 4, 2014
priority date (Note) -
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Abstract
An exhaust pipe valve system of an internal combustion engine includes: a plurality of exhaust pipe valves; and an actuator unit being an operation unit which performs an opening/closing operation of the exhaust pipe valves, wherein: the operation unit includes a first pulley and a second pulley being at least two operation parts which are connected to the plural exhaust pipe valves via wire cables respectively to open/close the exhaust pipe valves; and at least one of the operation parts has a non-operating area in which the operation part does not cause the corresponding cable to work in a predetermined operating range of the operation unit.
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