192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1977-01-14
1978-09-12
Wyche, Benjamin W.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
192 084, 74874, F16D 6700
Patent
active
041130774
ABSTRACT:
A control system for air actuated ahead and astern clutches and the engine speed governor of a marine propulsion system. Upon actuation of a throttle lever controlling a throttle valve, a selector valve is first actuated to operatively connect one or the other of the ahead or astern clutches to the control. Further movement of the throttle lever causes a relay valve to supply air at a pressure proportional to the throttle position to a main control valve which passes such air pressure to the selected clutch until a first control pressure is reached. Thereafter, air from the supply is supplied at a programmed rate to the selected clutch to continue inflation of the clutch until a second control pressure is reached whereupon a boost valve is actuated to connect full supply air pressure to the selected clutch. A governor control valve also receives the air output of the relay valve proportional to throttle position. When the pressure within the selected clutch exceeds the level of a biasing spring within the governor control valve, the governor valve is actuated and the air output proportional to throttle position is applied to the engine speed governor. Prior to the actuation of the governor valve, air output proportional to throttle position is passed by a regulator valve through the governor valve and to the engine speed governor. The air output pressure which the regulator valve passes is limited to a preselected, adjustable maximum so as to limit the maximum engine boost speed.
REFERENCES:
patent: 2524487 (1950-10-01), Stevens
patent: 2649173 (1953-08-01), Stewart
patent: 3543891 (1970-12-01), Mathers
patent: 3727737 (1973-04-01), Phinney
The Falk Corporation
Wyche Benjamin W.
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