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US 12,680,480 B2Granted
Switchable rocker arm
AssigneeEaton Intelligent Power Limited
InventorsEmanuele Raimondi, Massimo D'Amore
Life of this patent
Estimating the term…
Abstract
A switchable rocker arm can comprise a main body configured to rotate around a rocker shaft. The main body can comprise a valve end and a cam end. A second body can comprise a cam-receiving transfer portion and a latch bore through the transfer portion. The cam-receiving transfer portion can include a bearing axle and a roller bearing. A latch assembly including a first latch and a second latch can be mounted in the latch bore.
Claims20
A switchable rocker arm, comprising:
- a main body configured to rotate around a rocker shaft, the main body including:
- a valve end, and
- a cam end forked so as to form a first arm border defining a first piston bore, and a second arm border defining a second piston bore;
- a second body seated within the forked cam end, the second body including:
- a pivot portion configured to rotate around the rocker shaft, the pivot portion including a pair of pivot mounts respectively defining a pair of rocker shaft bearings,
- a transfer portion configured to interface with a cam, the transfer portion including a bearing axle and a roller bearing pivotally mounted on the bearing axle, and
- a latch bore extending through the bearing axle;
- and
- a latch assembly mounted in the latch bore, the latch assembly including a first latch and a second latch which are biased out of the latch bore,
- wherein a connecting body connects the transfer portion to the pivot portion, the connecting body including a bracket extending upward over a portion of the main body.
7 more elements
A second body for a switchable rocker arm which rotates around a rocker shaft, the second body comprising:
- a pivot portion configured to rotate around the rocker shaft, the pivot portion including a pair of pivot mounts respectively defining a pair of rocker shaft bearings;
- a transfer portion configured to interface with a cam;
- a connecting body connecting the transfer portion to the pivot portion;
- and
- a bearing axle extending through the transfer portion, the bearing axle including:
- a roller bearing pivotally mounted on the bearing axle,
- a latch bore extending through the bearing axle, and a latch assembly mounted in the latch bore,
- wherein the connecting body includes a bracket configured to extend upward over a portion of a main body of the switchable rocker arm.
5 more elements
Dependencies are inferred from the claim text.