Marine propulsion – Means for accomodating or moving engine fluids – Cooling for engine
Patent
1988-09-08
1990-01-30
Basinger, Sherman D.
Marine propulsion
Means for accomodating or moving engine fluids
Cooling for engine
418154, B63H 2110
Patent
active
048970590
ABSTRACT:
A corrosion resistant coolant pump for placement in the cooling system of a marine drive includes a corrosion resistant member mounted to and rotatable with a drive shaft interconnected with and rotatable in response to the engine crankshaft. The corrosion resistant member is preferably a cup adapted for receiving and enclosing an end of the drive shaft, with a portion of the cup extending into a cavity formed in the coolant pump housing. The cavity is in communication with marine drive cooling system. An impeller is connected to the cup and housed within the cavity for pumping coolant through the system. The cup is interconnected with the drive shaft so as to be rotatable in response thereto, thereby driving the impeller in response to rotation of the drive shaft. A sealing mechanism is provided about the cup for sealing the cavity and preventing contact of coolant with the drive shaft. With this construction, a carbon steel drive shaft can be utilized in a salt water coolant environment, thereby eliminating the need for constructing the entire drive shaft of a corrosion resistant material.
REFERENCES:
patent: 2858769 (1958-11-01), Doble
patent: 3712765 (1973-01-01), Smith
patent: 4565534 (1986-01-01), Bland
Basinger Sherman D.
Brunswick Corporation
Curfiss Robert C.
Sotelo Jesus D.
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