Expansible chamber devices – Plural flexible wall working members – Diaphragm type having working fluid contacting areas of...
Patent
1991-08-02
1994-03-15
Look, Edward K.
Expansible chamber devices
Plural flexible wall working members
Diaphragm type having working fluid contacting areas of...
92 98D, 92137, 92251, F01B 1900
Patent
active
052938115
ABSTRACT:
A control fin actuator (28) for a guided missile (20) includes a pressure actuator (40) having a slidable piston (44) inside a housing (42). Rolling diaphragm seals (50, 56) of the top piston face (46) and the bottom piston face (48) to the inside wall of the housing (42) divide the interior of the housing (42) into at least two chambers (54, 58). The rolling diaphragm seals (50, 56) eliminate sliding friction as the piston (44) moves within the housing. The two chambers (54, 58) are controllably pressurized to slide the piston (44) within the housing (42), thereby moving a push rod (78) attached to the piston (44) and extending out of the housing (42). The push rod (78) is connected to a missile control fin output shaft (24) by a taut band connector (80) that avoids backlash. A magnet (86) may be positioned adjacent to the push rod (78) to induce eddy currents in the push rod (78), thereby providing a damping force that increases with increasing rate of movement. Pressure in the control chamber (54) is achieved by operating the inlet valve (70) and the exhaust valve (72) in response to feedback information from a rotary position sensor (29), a linear position sensor (88), and/or pressure sensors (90, 92).
REFERENCES:
patent: 3020008 (1962-02-01), Rumsey
patent: 3063423 (1962-11-01), Riordan
patent: 3125000 (1964-03-01), Reuter
patent: 3301141 (1967-01-01), Griffing
patent: 3673861 (1972-07-01), Handy
patent: 3767160 (1973-10-01), McCollum
patent: 4000226 (1976-12-01), Laprade et al.
patent: 4366722 (1983-01-01), Hasler
patent: 4754776 (1988-07-01), McKee
patent: 4759262 (1988-07-01), Hay
patent: 4763560 (1988-08-01), Sasaki
patent: 4800798 (1989-01-01), Boldrin et al.
Stewart et al, Fluid Power, copyrighted 1980, Bobbs-Merrill Educational Publishing pp. 318-323.
Handbook of Applied Instrumentation, Considine et al editors, copyrighted 1964, McGraw-Hill Book Co.
Cline Russell B.
DeLair Charles M.
Brown Charles D.
Denson-Low Wanda K.
Heald Randall M.
Hughes Aircraft Company
Look Edward K.
LandOfFree
Missile control fin actuator system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Missile control fin actuator system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Missile control fin actuator system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1530359