F - Mech Eng,Light,Heat,Weapons – 03 – B
Patent
F - Mech Eng,Light,Heat,Weapons
03
B
138/34
F03B 3/18 (2006.01)
Patent
CA 1095373
Abstract of the Disclosure An arrangement for and-face sealing of the guide vanes of the distributor of a hydraulic machine including a pair of rims with a plurality of guide vanes disposed therebetween comprising a plurality of seals situated in elongated grooves provided in the rims between the holes receiving the vane journals. Each seal is composite in a plane parallel to the end faces of the vane and includes an inner plate adjacent the bottom of the groove and movable in said plane, and an outer plate engaging the inner plate and movable in a plane perpendicular to the end faces of the vanes. Both the plates have contacting surfaces formed with a variable profile in longitudinal section by a plane perpendicular to the end faces of the vanes and arranged in the groove so that the smaller-sec- tion portions of one plate are adjacent the larger-section portions of the other plate. are adjacent the larger-section portions of the other plate. In order that the seals might be displaced in the groove to be urged against the end faces of the guide vanes when closing the distributor, or retract- ed from the end faces of the vanes when opening the distri- butor, profile cams are fitted on the vane journals, en- gaging the end portions of the inner plate as the vanes are rotated to close or open the distributor. The longitu- dianl movement of the inner plate is transformed into the lateral movement of the outer plate of the seal towards the end faces of the vanes or therefrom. The arrangement is compact, provides for easy installation and dismantling without the necessity of disassembly of the distributor, and ensures a reliable uniform urging of the sealing member against the end faces of the guide vanes along the entire length of the seal when the distributor is in the closed position.
304594
Bronovsky Grigory A.
Loktaeva Valentina V.
Schegolev Gleb S.
Vikhirev Vitaly V.
Yablonsky Gennady A.
Marks & Clerk
Proizvodstvennoe Obiedinenie Turbostroenia Leningradsky Metallic
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