Piston assembly for internal combustion engine
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United States of America Patent
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May 8, 2018
Issued Date -
N/A
app pub date -
Jul 14, 2016
filing date -
Jul 15, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An internal combustion engine may include an engine block, a cylinder within the engine block, and a piston within the cylinder. The piston may have an outer peripheral wall, and a groove in the outer peripheral wall of the piston may have a first edge and a second edge spaced from the first edge. The piston may have a piston ring in the groove, and the piston ring may have a shape that meanders within the groove, such that the shape of the piston ring differs from a shape of the groove and such that the piston ring does not substantially fill the groove. The piston ring may be constructed of a material that when subjected to heat causes a shape of the meanderings to change, thereby enabling the piston ring to expand in an axial direction of the piston, between the edges of the groove.
First Claim
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International Classification(s)
- F02M:SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBU....
- F01L:CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINE....
- F01N:GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHIN....
- F02B:INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENG....
- F01B:MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DIS....
- F02F:CYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGI....
- F16J:PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; S....
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