ENGINE OIL PRESSURE REGULATION SYSTEM
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United States of America Patent
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Dec 22, 2020
Grant Date -
Dec 24, 2020
app pub date -
Jun 19, 2019
filing date -
Jun 19, 2019
priority date (Note) -
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Abstract
Methods and systems are provided for a lubricant system for an engine. In one example, the system includes external delivery lines coupling an oil reservoir of the engine to a plurality of cylinder head oil galleries, the engine also having internal oil passages. An amount of hydraulic fluid delivered via the external delivery lines is controlled by a pressure control valve having a vent line.
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