Electrohydraulic servovalve device

Fluid handling – Systems – Multi-way valve unit

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Details

91361, 91363R, 13762569, 318624, G05B 501

Patent

active

045137820

ABSTRACT:
A servovalve device assembly is provided with an electronic matching circuit positioned upstream of the servovalve. The matching circuit supplies electric control signals whose purpose is to modify the hydraulic flowrate response curve of the servovalve as a function of the electrical control signal, so as to make it substantially identical to an ideal desired response curve.

REFERENCES:
patent: 3233623 (1966-02-01), Gray
patent: 3555969 (1971-01-01), Shah
patent: 3710082 (1973-01-01), Sloane et al.
patent: 3821625 (1974-06-01), Scholl
patent: 3978668 (1976-09-01), Nonnenmacher
patent: 4050476 (1977-09-01), Hayner et al.
patent: 4077738 (1978-03-01), Keely et al.
patent: 4126155 (1978-11-01), Bertram
patent: 4282900 (1981-08-01), Lauba et al.
patent: 4337797 (1982-07-01), Caruso
patent: 4396975 (1983-08-01), Kurakake
patent: 4404626 (1983-09-01), Aoyama
Regelungstechnische Praxis, vol. 20, No. 2, Feb. 1978, Munich M. Gloeckner et al.

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