Switching rocker arm
AssigneeEaton Corporation
InventorsAustin Zurface, Andrei Dan Radulescu, Majo Cecur, Philip M. Kline, Tony Gordon, James R. Sheren
Life of this patent
Estimating the term…
Abstract
A rocker arm for engaging a cam is disclosed. An outer arm and inner arm are configured to transfer motion to a valve of an internal combustion engine. A latching mechanism includes a latch, sleeve and orientation member. The sleeve engages the latch and a bore in the inner arm, and also provides an opening for an orientation member used in providing the correct orientation for the latch with respect to the sleeve and the inner arm. The sleeve, latch and inner arm have reference marks used to determine the optimal orientation for the latch.
Claims19
A rocker arm for engaging a cam, comprising:
- an outer arm having a first end, a second end, a first and second outer side arm;
- an inner arm disposed between the first and second outer side arms, having a first end, a second end and a cam contacting surface disposed between the first and second end;
- the inner arm pivotably secured adjacent its first end to the outer arm adjacent the first end of the outer arm, the inner arm having a latch bore adjacent its second end having a generally cylindrical wall and a bore wall;
- a latch having a head with a first generally cylindrical diameter, a body with a second generally cylindrical diameter smaller than the first generally cylindrical diameter and an orientation pin receiving recess;
- a sleeve having a generally cylindrical inner and outer surfaces, the outer surface a least partially engaging the generally cylindrical wall of the latch bore, the inner surface at least partially engaging the body of the latch, the sleeve having an orientation pin opening extending between generally cylindrical inner and outer surfaces;
- an orientation pin extending through the sleeve opening and extending into an orientation pin receiving recess, the orientation pin configured to restrict rotation of the latch about the axial direction.
A rocker arm for engaging a cam, comprising:
- an outer arm having a first end, a second end, a first and second outer side arm;
- an inner arm disposed between the first and second outer side arms, and having a first end, a second end, a pin opening and a cam contacting surface disposed between the first and second end;
- the inner arm pivotably secured adjacent its first end to the outer arm adjacent the first end of the outer arm, a latch bore adjacent its second end having a generally cylindrical wall and a bore wall and a first opening;
- a latch having a head with a first generally cylindrical diameter, a body with a second generally cylindrical diameter smaller than the first generally cylindrical diameter, and an orientation pin receiving recess;
- a sleeve having a generally cylindrical inner and outer surfaces, the outer surface a least partially engaging the generally cylindrical wall of the latch bore, the inner surface at least partially engaging the body portion of the latch, the sleeve having a second opening extending between generally cylindrical inner and outer surfaces;
- an orientation pin extending through the first and second opening and into the orientation pin receiving recess, the orientation pin configured to restrict rotation of the latch about the axial direction.
Dependencies are inferred from the claim text.