Hydraulic internal combustion engines
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United States of America Patent
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Dec 3, 2013
Grant Date -
Apr 14, 2011
app pub date -
Oct 11, 2010
filing date -
Oct 12, 2009
priority date (Note) -
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Abstract
Hydraulic internal combustion engines having at least one combustion piston not mechanically connected to a crankshaft or any other combustion piston, but instead acting on hydraulic plungers through valving that is electronically controlled to control the piston position and velocity, typically through an intake stroke, a compression stroke, a combustion or power stroke and an exhaust stroke. Electronically controlled fuel injection and electronically controlled engine valves provided great flexibility in the operating cycles that may be used, with the engine pumping hydraulic fluid to a high pressure accumulator for use in hydraulic motors or other hydraulic equipment. Embodiments using high pressure air injection to sustain combustion are also disclosed.
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