ROTARY SYNCHRONOUS CHARGE TRAPPING

WIPO Patent Application WO/2012/161800

A3

An exemplary two-stroke internal combustion engine can comprise one or more cylinders comprising exhaust ports, one or more pistons configured to cyclically cover and uncover the exhaust ports during reciprocation of the pistons within the cylinders, and one or more rotary exhaust valves associated with each exhaust port. The exhaust valves can be configured to rotate around a valve axis that is substantially parallel to an axis of rotation of a crank shaft of the engine. Each exhaust valve at least partially obstructs the associated exhaust port during a portion of the exhaust valve's rotation about the valve axis while the associated exhaust port is at least partially uncovered by the associated piston, thereby trapping fresh charge within the combustion chamber.

JPH0619799	[Name of invention] Vortex adjustment valve between combustion chambers
JP3836945	EXHAUST CONTROL VALVE STRUCTURE OF TWO CYCLE ENGINE
JPS60145229	[Title of the device] Secondary combustion chamber one valve

HOOPER ANDREW (US)
BODE COLEMAN (US)
FUHRMAN ALEXANDER (US)
LORD TY (US)

PCT/US2012/026573

March 28, 2013

February 24, 2012

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UNIV IDAHO (US)
HOOPER ANDREW (US)
BODE COLEMAN (US)
FUHRMAN ALEXANDER (US)
LORD TY (US)

F01L5/04; F01L7/02; F01L7/10; F02B25/02

US4924819A	1990-05-15
US4388894A	1983-06-21
JPH1122471A	1999-01-26
US20050045122A1	2005-03-03

DUNCAN, Sandon, M. (LLPOne World Trade Center, Suite 1600,121 SW Salmon Stree, Portland OR, US)

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