Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1976-03-26
1978-02-28
Blix, Trygve M.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 87, 318139, 318349, B63H 2126
Patent
active
040759709
ABSTRACT:
Disclosed herein is a outboard motor comprising a shaft extending vertically under normal operating conditions and including a hollow interior, a lower housing fixedly connected to the shaft and including a hollow interior, an electric motor mounted in the housing hollow interior and including an output shaft, a propeller driven by the output shaft, a resistor electrically connected to the motor and located in spaced relation axially of the output shaft from the adjacent end of the electric motor, and a thermally conductive agent fixedly bonding the resistor to the housing. Also disclosed herein is a speed control circuit for a permanent magnet, direct current motor comprising a speed control including a first resistor connected between one of the armature winding terminals of the motor and a direct current source, a second resistor connected to the one armature winding terminal, a shunt lead connected to the one armature winding terminal, and a switch connected to the direct current source in parallel with the first resistor and selectively operable between a first position connecting the direct current source to the shunt lead, a second position connecting the direct current source to the second resistor, and a third position disconnected from both of the shunt lead and the second resistor, whereby current flow from the current source to the armature is solely through the first resistor.
REFERENCES:
patent: 2429774 (1947-10-01), Schultz et al.
patent: 2786173 (1957-03-01), Martin et al.
patent: 2808238 (1957-10-01), Spitler
patent: 2975349 (1961-03-01), Green
patent: 3196301 (1965-07-01), Turk
patent: 3387194 (1968-06-01), Banks
patent: 3593050 (1971-07-01), Ware
patent: 3906887 (1975-09-01), Kappas
patent: 3954081 (1976-05-01), Blake
Blake Charles H.
Wood Donald H.
Basinger Sherman D.
Blix Trygve M.
Outboard Marine Corporation
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