Run-of-the-river or ocean current turbine

A water turbine having a waterwheel and an output shaft,

• the output shaft turned by the waterwheel at a rotational velocity determined by water flow and direction, the water turbine further comprising
• a hatch for covering the waterwheel proportionately with one of water flow amount and direction, the hatch being connected to or integral with a sleeve and connected to a control gear, the sleeve surrounding the output shaft of the waterwheel and entering a housing for the control gear within the housing,
• the housing for housing a first and a second Transgear assembly, each assembly having a sun gear connected to or integral with the output shaft of the waterwheel, the control gear operatively connected to a worm gear and worm for operating the first and second Transgear assemblies to control one of closing and opening the hatch depending on rotational velocity of the waterwheel output shaft.

A water turbine having a waterwheel and an output shaft,

• the output shall turned by the waterwheel at a rotational velocity determined by water flow and direction, the water turbine further comprising
• a spur gear Transgear assembly serving as an accumulator of first and second inputs and providing an output, the spur gear Transgear assembly having first and second sleeves surrounding the output shaft, the output shaft having a sun gear, the first and second sleeves coupled by first and second carrier gears and first and second pins for connecting the first and second carrier gears to the first and second sleeves.