Patent ID: 8739680

Claim:
A spool for a servovalve comprising: a first end land having a first side, a second side opposite the first side, and a peripheral sealing surface extending from the first side to the second side; a second end land having a first side, a second side opposite the first side, and a peripheral sealing surface extending from the first side to the second side; and an intermediate land having a first side, a second side opposite the first side, and a peripheral sealing surface, the intermediate land being positioned between the first end land and the second end land in a spaced-apart, axially aligned relationship such that a first annular space is defined between the first end land and the first side of the intermediate land and a second annular space is defined between the second end land and the second side of the intermediate land, the intermediate land further having at least one fluid passageway formed in and extending through the intermediate land from the first side to the second side to establish fluid communication between the first annular space and the second annular space to provide a fluid pressure feedback between the first and second annular spaces and a jet provided within the at least one fluid passageway to provide fluid restriction between the first and second annular spaces.