Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1986-08-07
1989-03-07
Hepperle, Stephen
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
137486, 251 3001, 251 44, 251282, F16K 3140
Patent
active
048097462
ABSTRACT:
A proportional throttle valve which varies the throttle cross-sectional area in dependence upon a control signal and thus governs the flow rate. The invention relates to a throttle valve in which the position of the valve member remains constant independent of pressure fluctuations upstream and downstream of the throttle cross-section. For this purpose the pressure acts on equisized opposing faces of the valve member. An annular face of equal magnitude lying opposite the control face is subjected to the pressure in a line leading from the pressure-limiting valve for setting the control pressure to the tank so that pressure fluctuations in this tank line cause corresponding variations of the control pressure and the position of the valve member remains constant.
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Hepperle Stephen
Mannesmann Rexroth GmbH
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