Passive igniter cooling in cylinder head assembly
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United States of America Patent
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Dec 27, 2022
Grant Date -
N/A
app pub date -
Mar 10, 2022
filing date -
Mar 10, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A cylinder head in a cylinder head assembly includes an upper deck, a fire deck, gas exchange conduits, and a coolant cavity extending peripherally around the gas exchange conduits. The cylinder head also includes an igniter socket having an igniter post, and a radially outward sleeve step continuously circumferential of an igniter bore center axis. A cooling moat is formed between the igniter post and the sleeve step. The coolant cavity includes a valve bridge through-channel and a valve bridge part-way channel each fluidly connected to the igniter socket to provide coolant flow into and out of the cooling moat passively.
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