Turbine for operation in a fluid

摘要

A turbine is provided, comprising a housing having a fluid inlet and a fluid outlet, each in communication with an internal chamber formed within the housing. A rotor is mounted for rotation within the internal chamber. At least one paddle is pivotally mounted to the rotor for pivoting between an extended position in which the paddle extends substantially radially from the rotor for receiving pressure exerted by fluid moving through the housing and causing the rotor to rotate, and a retracted position in which the paddle does not extend from the rotor. A cam is provided in the internal chamber for moving the paddle from the extended position to the retracted position when, during rotation of the rotor, the paddle moves past the cam in the extended position. Magnetic biasing means may be used to bias the paddle in the extended or retracted position.

主权项

1. A turbine, comprising
a housing having a fluid inlet and a fluid outlet, the fluid inlet and the fluid outlet in communication with an internal chamber formed within the housing, such that fluid may flow into the internal chamber through the fluid inlet, and out of the internal chamber through the fluid outlet; a rotor mounted for rotation within the internal chamber; at least one paddle pivotally mounted to the rotor for pivoting between an extended position in which the paddle extends substantially radially from the rotor for receiving pressure exerted by fluid moving through the housing and causing the rotor to rotate, and a retracted position in which the paddle does not extend from the rotor; a cam provided in the internal chamber for moving the paddle from the extended position to the retracted position when, during rotation of the rotor, the paddle moves past the cam in the extended position; and magnetic biasing means for selectively biasing the paddle in the extended position, the magnetic biasing means comprising a first magnet having a polarity provided on the paddle, and a second magnet provided on the rotor, the second magnet having the same polarity as the first magnet such that when the paddle is in the retracted position the first magnet and the second magnet are in opposing arrangement.