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US 2013/0220249 A1Published application
Hinged rocker arm and valve opening arrangement including a hinged rocker arm
AssigneeMack Trucks, Inc.
InventorJohn Lowe
Life of this patent
Estimating the term…
Abstract
A hinged rocker arm includes a first wing including a first opening for receiving a rocker shall and a first contacting surface, and a second wing including a second opening for receiving the rocker shaft, the second wing including a second contacting surface When the first and second wings are mounted on the rocker shaft, the first contacting surface and the second contacting surface are adapted to contact each other and thereby transfer a force in a direction transverse to an axis of the rocker shaft.
Claims20
A hinged rocker arm, comprising:
- a first wing comprising a circular first opening for receiving a rocker shaft, and a first contacting surface;
- and
- a second wing comprising a circular second opening for receiving the rocker shaft, the second wing comprising a second contacting surface,
- wherein, when the first and second wings are mounted on the rocker shaft, the first opening and the second opening are coaxial, and the first contacting surface and the second contacting surface are adapted to contact each other and thereby transfer a force in a direction transverse to an axis of the rocker shaft.
1 more element
A valve opening arrangement, comprising:
- a valve arrangement comprising a valve, the valve being movable against a force from a first valve position to a second valve position;
- a rocker shaft;
- and
- a hinged rocker arm comprising
- a first wing, the first wing comprising a circular first opening for receiving the rocker shaft so that the first wing is pivotably mounted on the rocker shaft, and a first contacting surface, and
- a second wing, the second wing comprising a circular second opening for receiving the rocker shaft so that the second wing pivotably mounted on the rocker shaft, and a second contacting surface,
- wherein the first opening and the second opening are coaxial when the first and second wings are mounted on the rocker shaft, the first contacting surface and the second contacting surface being adapted to contact each other and thereby transfer a force in a direction transverse to an axis of the rocker shaft such that a third contacting surface on the hinged rocker min contacts the valve arrangement and moves the valve against the force from the first valve position to the second valve position.
4 more elements
Dependencies are inferred from the claim text.