| abstract |
The invention relates to an improvement in the performance of a rotor that is a rotating part of an impulse turbine. More specifically, as an embodiment, the invention relates to an impulse turbine with rotor blades for prevention clearance flow loss, in which a duct groove is formed in an inner wall of a circular duct, a first stator blade part in which a plurality of first stator blades are formed at an outer circumferential edge of a first stator shaft is located on the central axis of the duct, a rotor blade part which abuts on one side of the first stator blade part and in which a plurality of rotor blades are formed at an outer circumferential edge of a rotor shaft is located on the central axis of the duct, a second stator blade part which abuts on one side of the rotor blade part and in which a plurality of second stator blades are formed at an outer circumferential edge of a second stator shaft is located on the central axis of the duct, and a cylindricalO-ring which is formed corresponding to the duct groove and is attached to tips of outer peripheral edges of the rotor blades. Rotor blades of a conventional impulse turbine have a flow clearance at the tips of the rotor blades while they rotate within a duct. Fluid leaks through the flow clearance. This reduces the efficiency of the turbine. In order to solve this problem, theinvention provides an impulse turbine with improved efficiency by forming a duct groove corresponding to rotor blades of the impulse turbine in a duct, and inserting the rotor blades into the duct, thereby minimizing flow clearance. |