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US 2024/0200475 A1Published application
Switchable castellation assembly and method of operating a switchable castellation device
AssigneeEaton Intelligent Power Limited
InventorsEmanuele RAIMONDI, Nicola ANDRISANI
Life of this patent
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Abstract
A switchable castellation assembly can include a lost motion shaft, the lost motion shaft being configured to transfer a lift profile to a valve end. A switchable castellation device can comprise a rotatable first spline bushing and a spline body, wherein the first spline bushing can be changed between a locked position and an unlocked position, and a lost motion can be obtained by sliding the lost motion shaft.
Claims18
A switchable castellation assembly, comprising:
- a lost motion shaft, the lost motion shaft being configured to transfer a lift profile to a valve end;
- and
- a switchable castellation device, the switchable castellation device comprising:
- a rotatable first spline bushing;
- and
- a spline body;
- wherein the first spline bushing is configured to switch between a locked position and an unlocked position, and wherein a lost motion is obtained by sliding the lost motion shaft when the first spline bushing is in the unlocked position.
4 more elements
A switchable castellation assembly comprising:
- a lost motion shaft comprising an axis with a top end and a bottom end;
- a lash regulation screw arranged at the top end of the lost motion shaft;
- a lost motion spring arranged along the axial length of the lost motion shaft;
- a first spline bushing arranged along the axial length of the lost motion shaft;
- a guide arranged along the axial length of the lost motion shaft;
- and
- a spline body arranged along the axial length of the lost motion shaft;
- wherein the first spline bushing is positioned to selectively receive or block the spline body,
- wherein the guide orients the spline body with respect to the first spline bushing,
- wherein, when the first spline bushing is in a first position to receive the spline body, motion exerted on the switchable castellation device is absorbed by the switchable castellation device, and
- wherein, when the first spline bushing is in a second position to block the spline body, motion exerted on the switchable castellation device is not absorbed by the switchable castellation device.
8 more elements
A method of operating a switchable castellation device comprising:
- rotating a first spline bushing into an unlocked position;
- sliding a spline body into the first spline bushing such that the first spline bushing intertwines with the spline body;
- and
- sliding the spline body away from the first spline bushing such that the first spline bushing is no longer intertwined with the spline body.
1 more element
Dependencies are inferred from the claim text.