Blast simulator with high velocity actuator
AssigneeMTS Systems Corporation
InventorMartin M. Gram
Life of this patent
Estimating the term…
Abstract
A high velocity actuator, which may be used as a blast simulator, is provided with an actuator cylinder tube having an opening at first and second cylinder ends, and an actuator piston rod slidably mounted within the actuator cylinder tube and extending through the opening in the first cylinder end. A control valve concentric to the actuator cylinder tube is configured to be coupled to a source of pressurized fluid and controls admittance of the fluid under pressure to the actuator cylinder at the second cylinder end to act on the actuator piston rod to extend the actuator piston rod towards the first cylinder end.
Claims22
A fluid actuator comprising:
- an actuator cylinder tube having an opening at first and second cylinder ends;
- an actuator piston rod slidably mounted within the actuator cylinder tube and extending through the opening in the first cylinder end;
- a control valve concentric to the actuator cylinder tube and configured to be coupled to a source of pressurized fluid to control admittance of the fluid under pressure to the actuator cylinder at the second cylinder end to act on the actuator piston rod to extend the actuator piston rod towards the first cylinder end;
- and
- a plurality of actuators positioned along a circumference of the control valve and, each actuator being coupled to the control valve to control a position of the control valve.
An actuator comprising:
- an actuator cylinder tube;
- an actuator piston rod carrying and being slidable within the actuator cylinder tube;
- a control valve having a flow area at least equal to the cross-sectional area of the actuator piston rod, the control valve controlling admittance of fluid under pressure to the actuator piston rod, wherein the control valve has a poppet that is concentric to and slidable on the actuator cylinder tube and a poppet seat separated by a gap from the poppet and end of the actuator cylinder tube when the control valve is in an open position;
- and
- a plurality of poppet actuators positioned around the circumference of the poppet, each actuator being coupled to the poppet and arranged to control positioning of the poppet with respect to the poppet seat.
An actuator comprising:
- an actuator cylinder tube;
- an actuator piston rod slidable within the actuator cylinder tube;
- a control valve controlling admittance of fluid under pressure to the actuator piston rod, wherein the control valve has a poppet that is concentric to and slidable on the actuator cylinder tube and a poppet seat separated by a gap from the poppet and end of the actuator cylinder tube when the control valve is in an open position;
- and
- a plurality of poppet actuators positioned along the circumference of the poppet, each actuator being coupled to the poppet and arranged to control positioning of the poppet with respect to the poppet seat.
Dependencies are inferred from the claim text.