METHOD FOR CLEANING INTERNAL PARTS OF GASOLINE ENGINES
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United States of America Patent
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Issued Date -
Nov 20, 2008
app pub date -
May 16, 2008
filing date -
May 17, 2007
priority date (Note) -
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Abstract
Interior parts of gasoline engines are readily cleaned by a method comprising the steps of connecting an a cleaning liquid supply pipe having a gas supply port thereon airtightly to a port of an intake pipe of the engine below a throttle valve-attached position of the engine; operating the engine to draw cleaning liquid in the form of liquid drop and simultaneously drawing continuously a gas having an oxygen concentration of at least 20 vol. % into the intake pipe; and exhausting the cleaning liquid having been brought into contact with the internal parts of the engine with an exhaust gas.
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