Engine hydraulic valve actuator spool valve

Details Engine hydraulic valve actuator spool valve Engine hydraulic valve actuator spool valve

1994-09-15

1996-04-16

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

123 9012, 13762568, 25112921, F15B 13044

Patent

active

055073166

ABSTRACT:
A lightweight spool valve for an engine hydraulic valve actuator having a lightweight main body with a center bore therethrough with one end plugged to balance hydraulic forces and a soft iron magnetic ring attached to the main body where the magnetic sleeve is castellated to minimize oil film stiction forces and magnetically interacts with an electrical coil which induces axial motion to control the flow of hydraulic oil within the valve actuator.

REFERENCES:
patent: 2985566 (1961-05-01), Tslen et al.
patent: 3060970 (1962-10-01), Aslan
patent: 3580287 (1971-05-01), McLaughlin
patent: 4513780 (1985-04-01), Evans
patent: 4515345 (1985-05-01), Inden et al.
patent: 4655254 (1987-04-01), Hafner et al.
patent: 5005803 (1991-04-01), Fritz et al.
patent: 5011113 (1991-04-01), Stobbs et al.
patent: 5038826 (1991-08-01), Kabai et al.

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