.~.~.~ Having pitch control or motive fluid flow guide or reaction blade means
DEFINITION
Classification: 60/332
(under subclass 331) Apparatus wherein rotational direction of the turbine means may be controlled because of the ability to change the pitch of the vanes associated with either or all of the impeller means, turbine means or guide means in the motive fluid circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
342, for units having means to change the pitch of a flow
directing guide in combination with a means to brake said guide against relative rotation with one of the parts of the unit.
354+, for hydrokinetic units having means to change the pitch of flow directing guide means in order to vary the power output of the unit.