Internal combustion engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 2, 2024
Grant Date -
Oct 12, 2023
app pub date -
Mar 7, 2023
filing date -
Mar 24, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
An internal combustion engine includes: a cylinder in which a piston reciprocates; a stepped portion that is formed on an upper end portion of an inner peripheral surface of the cylinder; and a ring member having a cylindrical shape provided to the stepped portion. The thickness of the ring member decreases toward the bottom dear center of the piston, and an outer peripheral surface of the ring member is an inclined surface, where a lower end of the outer peripheral surface is positioned closer to the center in the radial direction of the ring member than an upper end of the outer peripheral surface.
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