Propeller assembly

Details Propeller assembly Propeller assembly

1975-07-09

1976-12-28

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Nonmetallic resilient mounting

416141, B64C 1112

Patent

active

039998878

ABSTRACT:
A propeller assembly comprises a rotatable drive shaft and two separate blade subassemblies resiliently coupled to and driven by the shaft. Each blade subassembly has a pair of interconnected propeller blades extending in opposite directions radially of the shaft. The blade subassemblies are disposed in parallel planes with the blades of one subassembly oriented transversely of the blades of the other subassembly. Rotational movement of the shaft is transmitted to the blade subassemblies through viscoelastic material which is torsionally loaded and stressed in shear. The viscoelastic material resiliently permits and damps in plane or lead-lag movement of each blade subassembly relative to the drive shaft. The subassemblies are also interconnected so that the viscoelastic material resiliently permits and damps relative in-plane movement between the subassemblies.

REFERENCES:
patent: 2312822 (1943-03-01), Julien et al.
patent: 3384185 (1968-05-01), Fernandez
patent: 3470962 (1969-10-01), Cure
patent: 3669566 (1972-06-01), Bourquardez et al.
patent: 3762834 (1973-10-01), Bourquardez et al.
patent: 3874815 (1975-04-01), Baskin
patent: 3880551 (1975-04-01), Kisovec

Affiliated with

Also associated with

Rating

Propeller assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Propeller assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Propeller assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-146085