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The invention relates to a regulating device for maintaining constant the rotary speed in turbines of the type comprising a turbine hub and a number of turbine blades which are axially, but rotatably connected to the hub and have such a shape and are so aranged that each turbine blade in a flowing m

The invention relates to a regulating device for maintaining constant the rotary speed in turbines of the type comprising a turbine hub and a number of turbine blades which are axially, but rotatably connected to the hub and have such a shape and are so aranged that each turbine blade in a flowing medium and by the action thereof is acted on by a torque about its longitudinal axis against the action of a spring device and acts on the turbine hub by a torque acting about the axis of rotation of the turbine. The features of the invention reside in that the regulating device further comprises a power-transmitter which is operable by an actuator for coordinating the angular motion and angular displacement of the turbine blades about the axes of rotation of the blades is connected to the turbine blades via linkage systems, the arrangement being such that each turbine blade when rotating about its axis of rotation acts on and brings about a corresponding rotation of the other turbine blade or the other turbine blades, and also being such that all turbine blades are rotatable about their geometrical axes of rotation by substantially equal angular displacements in relation to each other.

대표청구항 ▼

A turbine regulating device for maintaining constant rotary speed comprising: a turbine hub, a plurality of turbine blades supported by and rotatably connected to said hub, said turbine blades arranged and constructed to apply a torque acting about a turbine shaft, a spring arrangement arranged and

A turbine regulating device for maintaining constant rotary speed comprising: a turbine hub, a plurality of turbine blades supported by and rotatably connected to said hub, said turbine blades arranged and constructed to apply a torque acting about a turbine shaft, a spring arrangement arranged and constructed to rotate said turbine blade about a longitudinal geometrical axis of rotation substantially at right angles to said turbine shaft, a spring arrangement biasing means arranged and constructed to oppose a torque applied to said turbine blade by flowing fluid, said blade having a blade profile arranged and constructed to generate a pitch movement, said pitch movement being determined by said blade profile and being substantially independent of blade lift, an actuator means, a power transmitting means operable by said actuator means and moveably supported with respect to said hub, said power transmitting means arranged and constructed to coordinate angular motion and displacement of said turbine blades about said axis of rotation of said blades, a linkage system connecting said power transmitting means with said turbine blades, said linkage system having a crank arm connected to each turbine blade, said linkage system and power transmitting means arranged and constructed to rotate all turbine blades around their geometrical axis through an angular displacement substantially equal to a rotated turbine blade, abutment means having a resilient abutment and a fixed abutment, said resilient abutment being carried by said power transmitting means and being moveably arranged with respect to said hub, said fixed abutment fixedly supported with respect to said turbine hub and being arranged and constructed to cooperate with said resilient abutment and to accept reaction forces from said spring arrangement via said power transmitting means, whereby a force acts on said actuator means and on said turbine blades via said power transmitting means and said linkage system.