Machine element or mechanism – Mechanical movements – Rotary to rotary
Patent
1991-09-30
1992-08-04
Herrmann, Allan D.
Machine element or mechanism
Mechanical movements
Rotary to rotary
475267, F16H 3302
Patent
active
051348942
ABSTRACT:
A rotational energy coupler generally regarded to as a transmission is described, wherein rotational energy is transmitted through inertial media. An input unit transmits rotational energy to a set of inertial masses by driving the inertial masses to gyrate. An output unit recovers rotational energy from the gyrating inertial masses by altering their natural travelling paths through a guiding system that guides the gyrating inertial masses into paths along which the distance to the axis of rotation of the output unit is not constant. As a result, an unidirectional torque is generated on the output unit. If the output unit rotates, rotational energy is consumed, if not, rotational energy is conserved. The magnitude of the torque so generated is related to the rotation rate difference between the input unit and the output unit in an exponential manner, namely: the magnitude of the torque is proportional to the square of the rotation rate difference. The range of the magnitude of the torque is much wider than the range of the rate difference. The guiding system of the output unit has an unique feature of having no tangible track to guide the inertial masses so as to reduce friction. The output torque is unidirectional so that one-way clutches that convert oscillating torque into unidirectional torque are unnecessary.
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