Piston with Vaulted Cooling Chamber
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United States of America
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Issued Date -
Jan 30, 2025
app pub date -
Jul 25, 2024
filing date -
Jul 25, 2024
priority date (Note) -
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status (Latency Note)
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Abstract
A piston assembly is provided with a vaulted cooling chamber defined between the piston head and the piston skirt. The vaulted cooling chamber includes an inner gallery, an outer gallery, and a plurality of channels which connect the inner gallery to the outer gallery. In certain embodiments, the plurality of channels circumferentially extends at least 120 degrees around the longitudinal axis. In other certain embodiments, the piston assembly further includes a plurality of walls which define the plurality of channels, and there are at least four walls. In other certain embodiments, the piston head is coupled to the piston skirt by a plurality of fasteners, and each of the fasteners is located within 45 circumferential degrees of a fastener axis.
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