TechCar and Driverabout 1 hour ago
Subaru Files Patent for Hollow Camshaft
4 min read
Subaru filed patent application 19/638,324 in April 2026 for a hollow camshaft with a lockable balance weight to reduce engine vibration. The system uses centrifugal force or electric actuators to shift pins at a predefined threshold speed, potentially lowering noise for occupants in four-cylinder, inline, or V-engine designs.
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