192 clutches and power-stop control – Clutches – Fluent material and mechanical
Patent
1995-06-07
1996-10-08
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Fluent material and mechanical
192 483, 192 82T, 192 85AA, F16D 4706, F16D 2512
Patent
active
055621902
ABSTRACT:
A power plant is provided which includes a drive apparatus actuated clutch which can be rapidly engaged to selectively connect a prime mover to a driven device after prolonged exposure of the power plant to cold ambient temperatures. The drive apparatus utilizes a fluid coupling connected, connected in parallel with the clutch for rapidly heating a control volume of fluid used for actuating the clutch. In a preferred embodiment, the fluid coupling also motors the drive mechanism at 5-10% of rated speed to help circulate fluid heated by the fluid coupling through the drive mechanism to thereby reduce start-torque and drag torque experienced by the clutch on start-up. The clutch thus may be made smaller with less risk of burn-out, while still being capable of rapidly engaging following prolonged exposure to cold ambient temperatures.
REFERENCES:
patent: 2630893 (1953-03-01), Misch et al.
patent: 2676682 (1954-04-01), King
patent: 3088563 (1963-05-01), Petrie et al.
patent: 3247936 (1966-04-01), Aschauer
patent: 4493293 (1985-01-01), Paul et al.
Bonck Rodney H.
Crowe Lawrence E.
Sundstrand Corporation
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