Electrohydraulic control module
AssigneeTextron Inc.
InventorsFouad El Sherif, Harry J. Svoboda
Life of this patent
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Abstract
A modular control device which may be used separately or in predetermined multiples to provide desired detection and correction functions along with appropriate control functions normally associated with current day aircraft flight control. The module includes a housing which makes provisions for a plurality of bores capable of receiving various types of valve mechanisms therein. Control valves such as a servovalve and a solenoid valve are affixed to the housing and are hydraulically interconnected with the valves disposed in the various bores. The module may be connected to a hydraulic actuator which is moved to in turn position a load in accordance with control signals applied to the control module.
Claims8
Modular electrohydraulic control apparatus for removable connection to a structure to be controlled comprising:
- (A) a unitary housing member;
- (B) at least one electrohydraulic servo-valve member component affixed to said unitary housing member;
- (C) said housing member defining a plurality of bores therein each extending from one side only of said housing;
- (D) cover plate means removably secured to said housing to sealingly cover said bores;
- (E) at least one hydraulically actuated slide valve member component slidably disposed within each of said plurality of bores;
- (F) a plurality of fluid passageways defined within said housing member for interconnecting each of said components received within said housing to selected ones of other of said components;
- (G) said housing defining ports therein for receiving pressure and return connections from a source of hydraulic fluid under pressure and for connecting working fluid to said structure to be controlled;
- (H) a protective cover;
- (I) means sealing said protective cover to said housing member thereby to cover and provide protection for said electrohydraulic servo-valve;
- and
- (J) means for connecting said housing member to said structure to be controlled.
Dependencies are inferred from the claim text.