Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1977-06-24
1979-04-03
Nilson, Robert G.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
G05D 701
Patent
active
041471776
ABSTRACT:
A flow regulator for controlling fluid flow in regulating the operation of a fluid controlled device, such as a fork truck lift mechanism. The regulator provides a damping effect similar to that provided by a fixed orifice while concurrently providing such effect at constant speed so as to maintain the flow rate notwithstanding changes in load conditions. The flow regulator includes an improved flow stabilizing device in association with a sensing orifice structure for improved sensitivity in the response of the flow regulator to changes in pressure. The flow regulator further includes dashpot structure for damping the flow regulator piston movement both inwardly and outwardly in the flow regulating operation of the device.
REFERENCES:
patent: 2807279 (1957-09-01), Presnell
patent: 3424196 (1969-01-01), Donner
Gould Inc.
Nilson Robert G.
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