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US 2020/0347755 A1Published application
Valve rotating device
AssigneeFederal-Mogul Valvetrain GmbH
InventorsANTONIUS WOLKING, LUTHFI ARIEF, FLORIAN RINGELING
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AssigneeFederal-Mogul Valvetrain GmbH
InventorsANTONIUS WOLKING, LUTHFI ARIEF, FLORIAN RINGELING
Estimating the term…
A valve rotating device has an annular main body, an annular cover body, and an annular axial spring element. The main body has multiple pockets of variable depth so that raceways are formed for balls situated therein, wherein tangential springs press the balls against ends of the pockets in the circumferential direction. The cover body is rotatable relative to the main body about an axis and is axially displaceable, and has an annular first support element, an annular second support element, and a connection, wherein the support elements are axially spaced apart from one another and the connection connects the support elements so that they are fixed relative to one another. The axial spring element at a first end rests on an annular stop surface of the main body, and at a second end rests on a surface of the first support element, wherein the axial spring element is situated between the first support element and the second support element. A surface of the second support element facing away from the axial spring element rests against the balls, and the balls and the axial spring element are arranged in an overlapping manner in the radial direction.
A valve rotating device comprising
The valve rotating device according to one of the preceding claims, wherein the connection means (16) is situated radially outside the axial spring element (6).
The valve rotating device according to one of the preceding claims, wherein the stop surface (18) is provided with an anti-friction coating.
The valve rotating device according to one of the preceding claims, wherein the axial spring element (6) is a disk spring.
The valve rotating device according to one of the preceding claims, wherein the first support element (12), the second support element (14), and the connection means (16) are manufactured in one piece.
The valve rotating device according to one of the preceding claims, wherein the connection means (16) is present in the form of an annular outer wall (24) having a recess that allows the axial spring element (6) to be laterally inserted.
The valve rotating device according to one of the preceding claims, wherein a surface of the first support element (12) facing away from the axial spring element (6) is configured for use as a support surface for a valve spring.
The valve rotating device according to one of the preceding claims, wherein the surface of the second support element (14) facing away from the axial spring element (6) has a ball raceway.
Dependencies are inferred from the claim text.