Hollow blade for hydraulic turbine or pump

Fluid reaction surfaces (i.e. – impellers) – With fluid passage in working member communicating with... – Air and watercraft propellers

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

416186R, 416188, 416189, 416231R, 416232, 416233, 294695, 298897, 2988972, F01D 514, F01D 518

Patent

active

061557838

ABSTRACT:
A runner for a hydraulic turbine or pump includes a hub and a plurality of blades extending from the hub at spaced intervals therearound. Each blade includes an inner edge secured to the hub and a distal outer edge, a leading edge and an opposed trailing edge, and a curved suction surface and an opposed curved pressure surface. At least one of the blades is fabricated from a curved pressure-side member and a curved suction-side member secured together. The pressure-side member includes at least a substantial portion of the curved pressure surface and an opposed first inner surface. The suction-side member includes at least a substantial portion of the curved suction surface and an opposed second inner surface. The first and second inner surfaces face each other, and at least a portion of the first inner surface is spaced from at least a portion of the second inner surface to form a cavity within the blade. A method of making the hollow blade is also disclosed.

REFERENCES:
patent: 1579355 (1926-04-01), Greenawalt
patent: 1925777 (1933-09-01), Sperling
patent: 1942995 (1934-01-01), Biggs
patent: 2668079 (1954-02-01), Menegus et al.
patent: 2772863 (1956-12-01), Harney et al.
patent: 2803428 (1957-08-01), Garnett
patent: 2914301 (1959-11-01), Hess
patent: 3108146 (1963-10-01), Gross
patent: 3123651 (1964-03-01), Gross et al.
patent: 3132839 (1964-05-01), Haekal
patent: 3305215 (1967-02-01), Swiecicki et al.
patent: 3576065 (1971-04-01), Frazier
patent: 3628226 (1971-12-01), Nelson
patent: 3695778 (1972-10-01), Taylor
patent: 3736638 (1973-06-01), Stone, Jr.
patent: 3810286 (1974-05-01), Kaufman, Sr.
patent: 3862747 (1975-01-01), Richter
patent: 4043498 (1977-08-01), Conn, Jr.
patent: 4169047 (1979-09-01), Wilson
patent: 4188287 (1980-02-01), Faulkner et al.
patent: 4371480 (1983-02-01), Vos
patent: 4479757 (1984-10-01), Holmes et al.
patent: 4780051 (1988-10-01), Fisher, Jr.
patent: 5879130 (1999-03-01), Beyer et al.
patent: 5896657 (1999-04-01), Beyer et al.
patent: 5924842 (1999-07-01), Beyer et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Hollow blade for hydraulic turbine or pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hollow blade for hydraulic turbine or pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hollow blade for hydraulic turbine or pump will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-955495

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.