| 摘要 |
<p>PCT No. PCT/SE88/00457 Sec. 371 Date Mar. 8, 1990 Sec. 102(e) Date Mar. 8, 1990 PCT Filed Sep. 8, 1988 PCT Pub. No. WO89/02531 PCT Pub. Date Mar. 23, 1989.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.</p> |
