Variable pitch pan blade retention arrangement

Details Variable pitch pan blade retention arrangement Variable pitch pan blade retention arrangement

1990-11-08

1992-07-14

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Adjustable

416220R, 416205, F04D 2936, F01D 530

Patent

active

051297868

ABSTRACT:
To ensure retentioin of the blade tongue 16 of a prop-fan blade 10 within a receiving slot 24 in the disc arm 20 of the fan hub 4 even under the high centrifugal forces exerted on the blade 10 while rotating at high rpm, at least one pair of retaining pins 30 and 40 are provided. First seating grooves 32 and 42, respectively, are provided on opposite faces 15 and 17 of the blade tongue 16 and holes 34 and 44 are drilled transversely through the disc arm 20 so as to form corresponding second seating grooves 36 and 46, respectively, on opposite side walls 26 and 28 of the slot 24. The first and second seating grooves are arranged opposite of and parallel to each other such that each pair of grooves 32 and 36 form a retention channel between the first face 15 of the tongue 16 and the opposed side wall 26 of the slot 24 and aligned with the holes 34 and 44 for receiving the retaining pins 30 and 40 thereby locking the blade tongue within the slot 24.

REFERENCES:
patent: 1347031 (1920-07-01), Guy
patent: 1415266 (1922-05-01), Rice
patent: 2430185 (1947-10-01), Prescott
patent: 2658718 (1953-10-01), Walker
patent: 2974924 (1961-03-01), Rankin et al.
patent: 3746468 (1973-07-01), Saunders
patent: 4012171 (1977-03-01), Suvak
patent: 4630999 (1986-12-01), De La Harpe
patent: 5015150 (1991-05-01), Rohra

Affiliated with

Also associated with

Rating

Variable pitch pan blade retention arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable pitch pan blade retention arrangement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable pitch pan blade retention arrangement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-331704