Planetary gear transmission systems or components – Planet pinion is friction gear – Torque responsive means to increase contact pressure
Patent
1989-09-28
1991-08-20
Herrmann, Allan D.
Planetary gear transmission systems or components
Planet pinion is friction gear
Torque responsive means to increase contact pressure
475182, 475183, F16H 1306
Patent
active
050410660
ABSTRACT:
An epicyclic assembly to transmit torque and motion between externally connectable members using cylindrical elements maintained in rolling contact by surrounding rings and helical coils, the latter being in continuous helical paths. The rings and helical coils provide an effectively cylindrical inner surface of a diameter determined by the diameters of the cylindrical elements within it. Axial pressure exerted on the rings is redirected inwardly by angled surfaces of the rings to cause the helical coils to contract radially onto the cylindrical elements.
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C. R. Evans & K. L. Johnson, "The Rheological Properties of Elastohydrodynamic Lubricants", Proceedings of Institution of Mechanical Engineers, vol. 200, #C5, pp. 303-312, (1986).
C. R. Evans & K. L. Johnson, "Regimes of Traction in Elastohydrodynamic Lubrication", Proceedings Institution of Mechanical Engineers, vol. 200, #C5, pp. 313-324, (1986).
Herrmann Allan D.
Levi Benjamin
Schindler Edwin D.
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