Valve rotating device

Details Valve rotating device Valve rotating device

1977-10-12

1979-01-16

Lazarus, Ronald H.

Internal-combustion engines

Poppet valve operating mechanism

With nonvalving movement

137331, 137243, F01L 132

Patent

active

041343727

ABSTRACT:
A device for rotating a reciprocating valve executing alternating opening and closing strokes has an overrunning clutch coupled to the valve stem; a control lever; a first articulation connecting the control lever to the overrunning clutch; and a second articulation supporting the control lever at a distance from the overrunning clutch. The control lever is arranged to impart to the overrunning clutch a torque derived from the reciprocating motion of the valve. The overrunning clutch transmits the torque to the stem for effecting rotation thereof about the stem axis solely during the closing strokes. The second articulation is situated at a predetermined fixed location selected such that a line connecting the articulations defines a first angle with the valve stem axis at the end of each closing stroke and a second angle at the end of each opening stroke. The first angle is acute and the second angle is at the most 90.degree. and is greater than the first angle.

REFERENCES:
patent: 1005897 (1911-10-01), Shields et al.
patent: 1018591 (1912-02-01), Sperry
patent: 1044408 (1912-11-01), Meyer
patent: 1052939 (1913-02-01), Meyer
patent: 1314378 (1919-08-01), Tismer
patent: 1314949 (1919-09-01), Crowther
patent: 1467674 (1923-09-01), Kidd
patent: 1569887 (1926-01-01), Sargent

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