Rocker arm
AssigneeEaton Intelligent Power Limited
InventorMajo Cecur
Life of this patent
Estimating the term…
Abstract
A dual body rocker arm for controlling a valve of a cylinder of an internal combustion engine includes: a first body; a second body; and a latching arrangement moveable to latch and unlatch the first body and the second body. The latching arrangement includes: a latch pin moveable between a first position in which the latch pin latches the first body and the second body together and a second position in which the first body and the second body are un-latched; and a lever mounted for pivotal motion relative to the first body, a first end of the lever contacting the latch pin, and a second end of the lever configured to contact an actuation arrangement. In use, when the actuation arrangement exerts a force on the second end of the lever, the lever pivots such that the first end of the lever exerts a force on the latch pin.
Claims20
A dual body rocker arm for controlling a valve of a cylinder of an internal combustion engine, the dual body rocker arm comprising:
- a first body;
- a second body;
- and
- a latching arrangement moveable to latch and unlatch the first body and the second body, the latching arrangement comprising:
- a latch pin moveable between a first position in which the latch pin latches the first body and the second body together and a second position in which the first body and the second body are un-latched;
- and
- a lever mounted for pivotal motion relative to the first body, a first end of the lever contacting the latch pin, and a second end of the lever configured to contact an actuator;
- wherein, in use, when the actuator exerts a force on the second end of the lever, the lever is configured to pivot such that the first end of the lever pulls the latch pin to move the latch pin from the first position to the second position.
A dual body rocker arm for controlling a valve of a cylinder of an internal combustion engine, the dual body rocker arm comprising:
- a first body;
- a second body;
- and
- a latching arrangement moveable to latch and unlatch the first body and the second body, the latching arrangement comprising:
- a latch pin moveable between a first position in which the latch pin latches the first body and the second body together and a second position in which the first body and the second body are un-latched;
- and
- a lever mounted for pivotal motion relative to the first body, a first end of the lever contacting the latch pin, and a second end of the lever configured to contact an actuator;
- wherein, in use, when the actuator exerts a force on the second end of the lever, the lever is configured to pivot such that the first end of the lever exerts a force on the latch pin, thereby to move the latch pin from the first position to the second position,
- wherein the lever is arranged to orient the latch pin rotationally with respect to the first body, and
- wherein the second end of the lever defines a protrusion, and the latch pin defines a transverse slot into which the protrusion is received, thereby to orient the latch pin rotationally with respect to the lever.
A dual body rocker arm for controlling a valve of a cylinder of an internal combustion engine, the dual body rocker arm comprising:
- a first body;
- a second body;
- and
- a latching arrangement moveable to latch and unlatch the first body and the second body, the latching arrangement comprising:
- a latch pin moveable between a first position in which the latch pin latches the first body and the second body together and a second position in which the first body and the second body are un-latched;
- and
- a lever mounted for pivotal motion relative to the first body, a first end of the lever contacting the latch pin, and a second end of the lever configured to contact an actuator;
- wherein, in use, when the actuator exerts a force on the second end of the lever, the lever is configured to pivot such that the first end of the lever exerts a force on the latch pin, thereby to move the latch pin from the first position to the second position,
- wherein the dual body rocker arm comprises a torsional biasing device supported by the first body and arranged to bias the second body relative to the first body, and
- wherein the lever is mounted on a portion of the torsional biasing device for pivotal motion relative to the first body.
A dual body rocker arm comprising:
- a first body;
- a second body;
- a latch pin moveable between a first position in which the latch pin latches the first body and the second body together and a second position in which the first body and the second body are un-latched;
- and
- a lever pivotally mounted to the first body so as to allow the lever to move pivotally relative to the first body, the lever comprising a first end configured to contact the latch pin and a second end configured to contact an actuator,
- wherein, when the actuator exerts a force on the second end of the lever, the lever is configured to pivot such that the first end of the lever causes the latch pin to move from the first position to the second position.
Dependencies are inferred from the claim text.