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US 9,309,787 B2Granted
Engine rocker arm and roller assembly
AssigneeElectro-Motive Diesel, Inc.
InventorsLaura Rasmussen, Adarsh Nair, Mathias Klemp
Life of this patent
Estimating the term…
Abstract
An engine rocker arm and roller assembly is disclosed which may include a rocker arm having a first end and a second end, with a rocker arm being adapted to pivot about a pivot aperture therein. The engine rocker arm and roller assembly may further include an axle mounted in the second end with the axle being made of bronze and having a stepped profile. The roller may be rotatively mounted to the axle.
Claims18
An engine rocker arm roller assembly, comprising:
- a rocker arm having a first end and a second end, the rocker arm adapted to pivot about a pivot aperture therein, wherein the rocker arm second end includes first and second concentric apertures, the first aperture being larger than the second aperture;
- an axle mounted in the second end, the axle having a stepped profile;
- and
- a roller rotatably mounted directly to the axle.
1 more element
An axle for use in a rocker arm roller assembly of an engine, the axle comprising:
- a first cylindrical section having a first diameter;
- a second cylindrical section adjacent to and integral with the first cylindrical section, the second cylindrical section having a lesser diameter than the first cylindrical section;
- and
- a third cylindrical section adjacent to and integral with the second cylindrical section, the third cylindrical section having a lesser diameter than the second cylindrical section.
1 more element
An engine, comprising:
- an engine block having a plurality of cylinders;
- a plurality of pistons reciprocatingly mounted in the plurality of cylinders;
- a plurality of valves operatively associated with the plurality of cylinders;
- a cam shaft rotatable relative to the engine block and including a plurality of cams;
- a plurality of rocker arms with each rocker arm being operatively associated with one of the plurality of cams and one of the plurality of valves and wherein each rocker arm includes first and second ends, the second end including first and second concentric and spaced apertures;
- an axled press fit into each rocker arm;
- and
- a roller mounted directly to each axle, each axle being manufactured with bronze and having a stepped profile.
5 more elements
Dependencies are inferred from the claim text.