Apparatus for changing the attack angle of a cavitator on a supercavatating underwater research model
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorWilliam H. Nedderman
Life of this patent
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Abstract
An apparatus for changing the angle of attack of a cavitator on a supercavitating underwater research model. The apparatus has a nose assembly that has a pivotable cavitator tilt plate, an actuator member and a drive system engaged with the actuator member to drive the actuator member so as to tilt the cavitator tilt plate to a desired angle. Power components are remotely located and accessible to an operator so as to enable an operator to vary the angle of the cavitator tilt plate while the supercavitating underwater research model is underwater and in motion.
Claims15
An apparatus for changing the angle of attack of a cavitator on a supercavitating underwater research model, comprising:
- a nose assembly defining a watertight compartment therein wherein the nose assembly comprises:
- a housing surrounding said watertight compartment and an opening in communication with said watertight compartment;
- a cover plate attached to the housing to cover the opening in the housing, the housing, cover plate and interior defining the watertight compartment;
- and
- a deflector attached to the cover plate such that the cover plate is between the deflector and the housing;
- a plenum ring attached to the housing and circumferentially extending about and spaced from the cover plate and deflector, the space between the plenum ring and the cover plate defining a plenum for the collection of gas and the space between the plenum ring and deflector defining a passage in communication with the plenum for introducing gas into the plenum, and wherein the housing and cover plate each have gas inlet means for introducing gas into the plenum;
- a pivotable cavitator tilt plate positioned on said nose assembly for attaching to the cavitator;
- an actuator member supported by the nose assembly and having a first distal end movably attached to the cavitator tilt plate and a second distal end opposite the first distal end and located within the watertight compartment;
- a drive system positioned in the watertight compartment joined to move the actuator member in a first direction and in a second direction that is opposite the first direction, the drive system having electrical control inputs for controlling the drive system;
- and
- an electrical power system positioned at a remote location and joined to the drive system.
An apparatus for changing the angle of attack of a cavitator on a supercavitating underwater research model, comprising:
- a nose assembly defining a watertight compartment therein wherein the nose assembly comprises:
- a housing surrounding said watertight compartment and an opening in communication with said watertight compartment;
- a cover plate attached to the housing to cover the opening in the housing, the housing, cover plate and interior defining the watertight compartment;
- a deflector attached to the cover plate such that the cover plate is between the deflector and the housing;
- a base plate attached to the deflector such that the deflector is between the cover plate and the base plate;
- a pivotable cavitator tilt plate positioned on said nose assembly for attaching to the cavitator;
- an actuator member supported by the nose assembly and having a first distal end movably attached to the cavitator tilt plate and a second distal end opposite the first distal end and located within the watertight compartment;
- a drive system positioned in the watertight compartment joined to move the actuator member in a first direction and in a second direction that is opposite the first direction, the drive system having electrical control inputs for controlling the drive system;
- and
- an electrical power system positioned at a remote location and joined to the drive system.
Dependencies are inferred from the claim text.