Staircase blade tip

Details Staircase blade tip Staircase blade tip

1979-06-18

1981-06-23

Powell, Jr., Everette A.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Means to seal radial flow pump runner inlet from outlet

415174, 416228, 416237, F01D 520

Patent

active

042748062

ABSTRACT:
An airfoil blade tip is so configured that, when it is caused to rub against a surrounding casing, the resultant force acting on the blade tip is substantially in the tangential direction. In this way, axial forces on the airfoil are substantially reduced.

REFERENCES:
patent: 899319 (1908-09-01), Parsons et al.
patent: 1014730 (1912-01-01), Way
patent: 1206058 (1916-11-01), Wakefield
patent: 1317707 (1919-10-01), Johnson
patent: 1862827 (1932-06-01), Parsons et al.
patent: 2738950 (1956-03-01), Price
patent: 3403893 (1968-10-01), Stoffer
patent: 3575523 (1971-04-01), Gross
patent: 3854842 (1974-12-01), Caudill
patent: 3876330 (1975-04-01), Pearson et al.
patent: 3885886 (1975-05-01), Richter

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