Reverse thrust propeller

Details Reverse thrust propeller Reverse thrust propeller

1987-06-16

1988-10-18

Basinger, Sherman D.

Marine propulsion

Means for accomodating or moving engine fluids

Means for handling exhaust gas

416 93A, 416245A, 440 49, B63H 512

Patent

active

047784199

ABSTRACT:
A marine propulsion device including a propeller shaft, a lower unit rotatably supporting the propeller shaft and including a lower unit exhaust passageway, and a propeller adapted to be submerged in water and including an inner hub connected to the propeller shaft. The propeller also includes an outer hub connected to and spaced from the inner hub and defining a propeller exhaust passageway having an inlet in communication with the lower unit exhaust passageway, a plurality of blades extending from the outer hub rearwardly of the inlet, an opening for communicating the lower unit exhaust passageway with water outside of the outer hub, and a member located adjacent and rearward of the opening, and extending forwardly and radially outwardly with respect to the propeller shaft.

REFERENCES:
patent: 2213609 (1940-09-01), Ronning
patent: 3279415 (1966-10-01), Kiekhaefer
patent: 3356151 (1967-12-01), Strang
patent: 3444932 (1967-08-01), Wlezien
patent: 3467051 (1969-09-01), Shimanckas
patent: 3587510 (1971-06-01), Shimanckas
patent: 3748061 (1973-07-01), Henrich
patent: 3754837 (1973-08-01), Shimanckas
patent: 3865509 (1975-02-01), Frazzell et al.
patent: 4276036 (1981-06-01), Nishida et al.
patent: 4436514 (1984-03-01), Takahashi et al.
patent: 4511339 (1985-04-01), Kasschau

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