Methods and systems for managing a clearance gap in a piston engine
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United States of America Patent
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Aug 4, 2015
Grant Date -
Jul 4, 2013
app pub date -
Dec 29, 2011
filing date -
Dec 29, 2011
priority date (Note) -
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Abstract
A piston engine may include a clearance gap between a piston assembly and a cylinder. The piston may be configured to translate in a bore of the cylinder. The clearance gap between the piston assembly and the bore may be actively or passively controlled. A control system may provide one or more adjustments based on, for example, a detected temperature, pressure, flow rate, work metric, and/or other indicator. The adjustments may include, for example, adjusting a cylinder liner, adjusting a flow through a bearing element, adjusting a coolant flow, adjusting a heat pipe property, and/or other adjustments. One or more auxiliary systems may be used to provide the adjustments.
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