Valves and valve actuation – Electrically actuated valve – Rotary electric actuator
Patent
1998-07-31
2000-08-08
Rivell, John
Valves and valve actuation
Electrically actuated valve
Rotary electric actuator
137875, F16K 3104
Patent
active
060989572
ABSTRACT:
A valve apparatus used in heating and cooling systems in which a valve housing, a valve element, a drive mechanism, and a torque limiting mechanism operate to open and close the valve element between different ports to allow fluid flow through the flow passage within the valve. A torque limiting mechanism comprising a spring limits the amount of torque required by the motor by using energy stored in the spring to assist in maintaining the valve element in a closed position, or to maintain the valve element in an intermediate position for the regulation of flow through the valve flow passage in both mixing and diverting applications. The valve mechanism includes a motor driven mechanism with a de-energizing circuit to stop the rotation of the motor upon the motor driven mechanism applying a predetermined amount of compression to the spring. The compressed spring exerting a substantially equal force to the valve element for closing the different ports.
REFERENCES:
patent: 1747594 (1930-02-01), Panish
patent: 1856927 (1932-05-01), Panish
patent: 2203233 (1940-06-01), Panish
patent: 2598062 (1952-05-01), Krecan
patent: 3255636 (1966-06-01), Wehrli
patent: 3311121 (1967-03-01), Morrell
patent: 4346728 (1982-08-01), Sulzer
patent: 4463980 (1984-08-01), Vamvakas
patent: 4474078 (1984-10-01), Denkowski et al.
patent: 4715580 (1987-12-01), Mueller
patent: 4875504 (1989-10-01), Nicholson
patent: 5052424 (1991-10-01), Zerndt et al.
patent: 5085401 (1992-02-01), Botting et al.
patent: 5131623 (1992-07-01), Giordani
patent: 5174546 (1992-12-01), Giordani
patent: 5176037 (1993-01-01), Kasprzyk
patent: 5426353 (1995-06-01), Stuhr et al.
Honeywell Inc.
Rivell John
Schwarz Edward L.
LandOfFree
Electro-mechanical torque limiter for valve actuators does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electro-mechanical torque limiter for valve actuators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electro-mechanical torque limiter for valve actuators will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1142592