Power plants – Pressure fluid source and motor – Condition responsive control means responsive to – or...
Patent
1989-10-10
1990-09-11
Hepperle, Stephen M.
Power plants
Pressure fluid source and motor
Condition responsive control means responsive to, or...
236 93R, F16D 3106, G05D 2300
Patent
active
049551949
ABSTRACT:
A damping arrangement for damping the oscillations of valves which are controlled by pressure fluid and the control pressure conduits of which contain a throttle. A characteristic is that initial oscillations can be rapidly stabilized independently of the operating temperature of the pressure fluid. This is accomplished by the throttle having a throttle gap of which the height varies oppositely to the temperature of the pressure fluid so as to compensate fully or partially for changes in the hydraulic resistance that are occasioned by the temperature. The throttle gap is mostly traversed by laminar flow and consequently there is a high hydraulic throttling resistance even at low speeds of flow. The throttle is therefore also adapted effectively to damp small oscillations of the valve element so that the initial oscillations are rapidly stabilized.
REFERENCES:
patent: 593399 (1897-11-01), Leitch
patent: 1964638 (1934-06-01), Kreidel
patent: 2966170 (1960-12-01), Raulins
patent: 3340893 (1967-09-01), Lockwood
patent: 3971216 (1976-07-01), Miller
patent: 4266464 (1981-05-01), Baatrup et al.
patent: 4401009 (1983-08-01), Zeuner et al.
patent: 4426194 (1984-01-01), Pollman
patent: 4523430 (1985-06-01), Masuda
patent: 4685295 (1987-08-01), Christiansen et al.
Christensen Thorkild
Thomsen Svend E.
Zenker Siegfried
Danfoss A/S
Easton Wayne B.
Hepperle Stephen M.
Johnson Clayton R.
LandOfFree
Damping arrangement for damping the oscillations of valve contro does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Damping arrangement for damping the oscillations of valve contro, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Damping arrangement for damping the oscillations of valve contro will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1176892