Rotary kinetic fluid motors or pumps – With control means responsive to non-cyclic condition... – By shaft speed or torque responsive means
Patent
1987-10-13
1989-07-25
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
With control means responsive to non-cyclic condition...
By shaft speed or torque responsive means
415 44, 415155, 137862, F01D 1718
Patent
active
048507938
ABSTRACT:
Existing steam chests having a plurality of valves which are incapable of operation by individual high pressure valve actuators may be modified to provide apparatus for transferring operation of a steam turbine at less than a full load betweeen a full-arc admission mode and a partial-arc admission mode. For those steam chests of the internal bar lift type, the outboard valves are disconnected from the bar and coupled directly to respective servomotors. As such, the pre-existing servomotor utilized to lift the internal bar, as well as the additional servomotors for the outboard valves, are operatively connected to a conventional control means. In those steam chests of the external bar lift type, an additional servomotor is coupled through an actuator rod to the pre-existing pivot point of the external bar, and is thereafter controlled by conventional means for interactively activating the pre-existing servomotor and the additional servomotor.
REFERENCES:
patent: 1118419 (1914-11-01), Hohn
patent: 1197283 (1916-09-01), Gibson
patent: 1997456 (1935-04-01), Dickinson et al.
patent: 2745422 (1956-05-01), Wilson
patent: 3310069 (1967-03-01), Hoffman
patent: 4036020 (1977-07-01), Bagley
patent: 4053786 (1977-10-01), Jones et al.
patent: 4253308 (1981-03-01), Eggenberger et al.
patent: 4325670 (1982-04-01), Silvestri, Jr.
patent: 4604028 (1986-08-01), Yeaple et al.
Kendall Scott W.
Silvestri, Jr. George J.
Garrett Robert E.
Pitko Joseph M.
Westinghouse Electric Corp.
LandOfFree
Steam chest modifications for improved turbine operations does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Steam chest modifications for improved turbine operations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Steam chest modifications for improved turbine operations will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2353569