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Finger follower

Inactive Publication Date: 2005-02-10
TORRINGTON THE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Large apertures in the main body negatively effect the strength and stiffness of the finger follower and can result in damage or even failure of the finger follower under forces applied by the cam.
Such r

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example

[0030] In a second embodiment, the hollow shaft 72 is positioned loosely in the cam follower aperture 120 to facilitate rotation of the cam follower 68 with respect to the hollow shaft 72, the solid shaft 76 is positioned loosely in the shaft aperture 124 of the hollow shaft 72 to facilitate rotation of the hollow shaft 72 with respect to the solid shaft 76, and the solid shaft 76 is press fit into the wall apertures 96 or otherwise interconnected to the side walls 92 to prevent rotation of the solid shaft 76 with respect to the main body 64. In this embodiment, the cam follower 68 is rotatable with respect to the hollow shaft 72, the solid shaft 76, and the main body 64. Also in this embodiment, the hollow shaft 72 is rotatable with respect to the cam follower 68, the solid shaft 76, and the main body 64. Rotation of the hollow shaft 72 with respect to the main body 64 and solid shaft 76 allows the load bearing point on the hollow shaft 72 to continuously change. As such, the hollo...

Example

[0031] In a third embodiment, the hollow shaft 72 is positioned loosely in the cam follower aperture 120 to facilitate rotation of the cam follower 68 with respect to the hollow shaft 72, the solid shaft 76 is positioned loosely in the shaft aperture 124 of the hollow shaft 72 to facilitate rotation of the hollow shaft 72 with respect to the solid shaft 76, and the solid shaft 76 is positioned loosely in the wall apertures 96 to facilitate rotation of the solid shaft 76 with respect to the main body 64. In this embodiment, the cam follower 68, the hollow shaft 72, and the solid shaft 76 are all rotatable with respect to each other and are all rotatable with respect to the main body 64. To facilitate the third embodiment rotation, the hollow shaft 72 has an outer diameter sufficiently sized to ensure that the hollow shaft 72 engages the cam follower 68 at the inner diameter thereof to an extent that facilitates rotation of the cam follower 68 with respect to the hollow shaft 72. Rota...

Example

[0032] In a fourth embodiment, the hollow shaft 72 is positioned loosely in the cam follower aperture 120 to facilitate rotation of the cam follower 68 with respect to the hollow shaft 72, the solid shaft 76 is press fit in the shaft aperture 124 of the hollow shaft 72 or otherwise interconnected with the hollow shaft 72 to prevent rotation between the hollow shaft 72 and the solid shaft 76, and the solid shaft 76 is positioned loosely in the wall apertures 96 to facilitate rotation of the solid shaft 76 with respect to the main body 64. In this embodiment, the cam follower 68 and the solid shaft 76 are rotatable with respect to the main body 64. To facilitate the fourth embodiment rotation, the hollow shaft 72 has an outer diameter sufficiently sized to ensure that the hollow shaft 72 engages the cam follower 68 at the inner diameter thereof to an extent that facilitates rotation of the cam follower 68 with respect to the hollow shaft 72. Rotation in the fourth embodiment is also f...

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PUM

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Abstract

A finger follower for use in an engine. The finger follower includes a main body including spaced apart first and second walls. The first wall defines a first aperture therein and the second wall defines a second aperture therein, the first and second apertures each having a diameter. The finger follower also includes a shaft assembly that has a first portion positionable between the walls and has a second diameter that is larger than the aperture diameters. The shaft assembly includes secondary portions that extend from the first portion and are configured to be received in the first and second apertures. The finger follower further includes a cam follower positioned between the walls and rotatable about the shaft assembly first portion.

Description

FIELD OF THE INVENTION [0001] The present invention relates to engines and, more particularly, to finger followers useable in engines. BACKGROUND [0002] Engines of all kinds utilize gasoline or other petroleum based products as a source of fuel. Particularly, internal combustion engines utilize such fuel. These types of engines typically include a fuel inlet chamber, an exhaust chamber, a camshaft, and a valve operating assembly for each chamber for regulating the opening and closing of the chambers. [0003] These valve operating assemblies include a finger follower engageable by a cam on the camshaft. The finger follower typically includes a main body, a rotatable cam member or cam follower that rotates with respect to the main body and engages the cam, and a solid pin positioned generally in the middle of the main body and on which the cam follower is supported and rotatable about. The solid pin is positioned in the cam follower and has a diameter similar to the inner diameter of t...

Claims

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Application Information

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IPC IPC(8): F01L1/02F01L1/18
CPCF01L2105/02F01L1/185F01L2305/02
Inventor SHATTUCK, CHARLES W.
Owner TORRINGTON THE CO LTD