ROCKER ARM WITH OUTWARDLY SPRUNG HYDRAULIC ACTUATOR PISTON
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United States of America Patent
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Issued Date -
Aug 22, 2024
app pub date -
Feb 18, 2024
filing date -
Feb 18, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
A rocker arm comprises a hydraulic actuator piston slidably disposed in an actuator bore. An actuator spring is configured to bias the hydraulic actuator piston out of actuator bore and into contact with a valve train component or at least one engine valve, wherein reaction of the hydraulic actuator piston against the valve train component or the at least one engine valve biases a motion receiving portion of the rocker arm into contact with the valve actuation motion source. In an unactuated state of the hydraulic actuator piston, hydraulic fluid is permitted to flow out of the actuator bore and, in an actuated state of the hydraulic actuator piston, hydraulic fluid is locked in the actuator bore.
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