Asymmetric planetary gear variable speed transmission

A variable speed power transmission comprising,

• a rotor adapted to rotate about a linear axis of a transmission drive line, said rotor comprising an input hub and a control hub,
• said input hub connected to a power input source and operatively connected to drive a transmission output gear,
• said control hub operatively connected to a gear train internal to said rotor also operatively connected to drive said output gear.
• said input and control hubs having adjacent radially flush outer peripheral surfaces.
• means for controlling a rate of rotation of said input hub relative to a rate of rotation of said control hub by contact with said flush radially outer peripheral surfaces said gear train including asymmetric gear pairs mounted to rotate within said rotor in mesh with a sun gear of an output shaft.

A variable speed Dower transmission comprising, a rotor adapted to rotate about a linear axis of a transmission drive line, said rotor comprising an input hub and an control hub,

• said input hub connected to a power input source and operatively connected to drive a transmission output gear,
• said control hub operatively connected to a gear train internal to said rotor also operatively connected to drive said output gear,
• said input and control hubs having adjacent radially flush outer peripheral surfaces,
• means for controlling a rate of rotation of said input hub relative to a rate of rotation of said control hub by contact with said flush radially outer peripheral surfaces and further comprising a planetary gear set axially adjacent said rotor, said planetary gear set being in mesh with an internal ring gear in a transmission housing of said transmission, and in mesh with an extension of the input hub.

A variable speed power transmission comprising,

• a rotor adapted to rotate about a linear axis of a transmission drive line, said rotor comprising an input hub and a control hub,
• said input hub connected to a power input source and operatively connected to drive a transmission output gear,
• said control hub operatively connected to a gear train internal to said rotor also operatively connected to drive said output gear,
• said input and control hubs having adjacent radially flush outer peripheral surfaces.
• means for controlling a rate of rotation of said input hub relative to a rate of rotation of said control hub by contact with said flush radially outer peripheral surfaces and wherein an output shaft connected to said control hub through said gear train is connected to a sprague clutch assembly, said sprague clutch assembly housed within a clutch housing, and an output gear attached to an exterior of said clutch housing.

A power transmission comprising,

• a torque reducing rotor assembly,
• said torque reducing rotor assembly comprising a rotationally driven input hub and a coaxially adjacent control hub, said input and control hubs having radially flush outer peripheral speed control surfaces,
• asymmetric helical planetary gears mounted upon respective asymmetric shafts and in meshed engagement with a main sun gear of an output shaft at opposite radial sides of said sun gear,
• each of said asymmetric shafts mounted at an angle to said output shaft and having a spur gear attached to an end opposite said helical planetary gears to rotate with said planetary gears,
• said spur gears in meshed engagement with horizontally mounted asymmetric helical gears,
• said horizontally mounted asymmetric helical gears being on a common shaft with second asymmetric spur gears in meshed engagement with an internal ring gear of said control hub,
• said flush outer peripheral speed control surfaces of said input and control hubs at least partially covered by and in contact with a radially constrictive wrap spring,
• said wrap spring having a control tang operative to control the constrictive force of said wrap spring upon said speed control surfaces of said input and control hubs to interlock said input and control hubs in synchronous rotation and to allow one of the hubs to rotate independently of the other.