Hydro seal retainer

Details Hydro seal retainer Hydro seal retainer

1976-03-29

1977-09-27

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Combined or convertible

Hub lubrication or seal

416174, B64C 1108

Patent

active

040508480

ABSTRACT:
This invention is primarily a backup seal safety device to prevent a sudden loss of oil through failure of a pressed expansion plug in the front of a hollow, oil-containing crankshaft commonly associated with aircraft engines that supply oil under pressure to a controllable pitch, constant speed aircraft propeller when this type of propeller is utilized. The plug is installed in these engines when a fixed propeller is installed in place of the constant speed propeller.

REFERENCES:
patent: 1895874 (1933-01-01), Barbarou
patent: 2032255 (1936-02-01), Caldwell
patent: 2457311 (1948-12-01), Kidd
patent: 2792064 (1957-05-01), Smith

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