IP Library › Granted Patent US 7,418,935
Granted Patent B2
US 7,418,935 · App. 10/518,739 · Granted Sep 2, 2008

Stroke adjusting device for valves of a combustion engine

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Quick Facts
Patent No.
US 7,418,935
App. No.
10/518,739
Granted
Sep 2, 2008
Kind
B2
Abstract

A device for adjusting the valve lift ( 1 ) of the valves of a combustion engine comprising a lever ( 3 ) being driven by a camshaft ( 4 ), pushed against the camshaft ( 4 ) by a spring, which cooperates with at least one valve engagement means and is positioned by a positioning means ( 6 ).

Claims (12)

1. A device for adjusting valve lift in a combustion engine, the device comprising:

a cam shaft;

a first bearing;

a second bearing;

a valve in lifting engagement with the second bearing;

a rocker lever having first and second opposite ends and a body area with a pivot between the first and second opposite ends;

a first roller mounted on the first end of the rocker lever in rolling contact with the first bearing;

a second roller mounted on the second end of the rocker lever in rolling contact with the second bearing;

a positioning rail engaging the rocker lever at the body area beside the pivot; and

a spring biasing the second roller into driven rolling contact with the cam shaft.

2. A device as defined in claim 1 , wherein the positioning rail contacts the body area of the rocker lever.

3. A device as defined in claim 1 , further comprising a third roller mounted on the body area of the rocker lever, and wherein the positioning rail contacts the third roller.