초록 ▼

A MEMS type flow actuated out-of-plane flap apparatus includes a substrate defining a plane; a duct attached to the substrate, the duct and the substrate defining a fluid flow channel; and a rotatable flap having a flow receiving portion and an extension portion. The flow receiving portion being dis

A MEMS type flow actuated out-of-plane flap apparatus includes a substrate defining a plane; a duct attached to the substrate, the duct and the substrate defining a fluid flow channel; and a rotatable flap having a flow receiving portion and an extension portion. The flow receiving portion being disposed in the fluid flow channel where, in an actuated position of the flap, a fluid flow against the flow receiving portion causes rotation of the flap and movement of the extension portion out of the plane of the substrate.

대표청구항 ▼

What is claimed is: 1. A projectile, comprising: a flow surface; and a plurality of microelectromechanical (MEMS) apparatus being disposed at the flow surface, wherein each MEMS apparatus of said plurality of MEMS apparatus comprises a substrate, which defines a first plane, a duct is attached to t

What is claimed is: 1. A projectile, comprising: a flow surface; and a plurality of microelectromechanical (MEMS) apparatus being disposed at the flow surface, wherein each MEMS apparatus of said plurality of MEMS apparatus comprises a substrate, which defines a first plane, a duct is attached to the substrate, the duct and the substrate define a fluid flow channel, and a rotatable flap comprises a flow receiving portion and an extension portion where the flow receiving portion is disposed in the fluid flow channel, wherein, in an actuated position of the rotatable flap, a fluid flow against the flow receiving portion causes rotation of the rotatable flap and movement of the extension portion out of the first plane of the substrate, wherein, in a rest position of the rotatable flap, the MEMS apparatus is substantially flush with the flow surface, and wherein, in the actuated position of the rotatable flap, the extension portion of the rotatable flap extends out of a plane of the flow surface. 2. The projectile of claim 1, further comprising a source of fluid pressure; and a fluid connection being located between the source of fluid pressure and the duct of the MEMS apparatus. 3. The projectile of claim 2, wherein the source of fluid pressure comprises one of external air, combustion products and stored energy. 4. The projectile of claim 2, further comprising a control valve being disposed in the fluid connection. 5. The projectile of claim 2, further comprising a control valve being disposed in the fluid connection; and a guidance and control system being connected to the control valve. 6. A projectile, comprising: a flow surface; at least one microelectromechanical (MEMS) apparatus being disposed at the flow surface, wherein said at least one MEMS apparatus comprises a substrate, which defines a first plane, a duct is attached to the substrate, the duct and the substrate define a fluid flow channel, and a rotatable flap comprises a flow receiving portion and an extension portion where the flow receiving portion is disposed in the fluid flow channel, wherein, in a rest position of the rotatable flap, the MEMS apparatus is substantially flush with the flow surface, and wherein, in an actuated position of the rotatable flap, the extension portion of the rotatable flap extends out of a plane of the flow surface; a source of fluid pressure and a fluid connection, said fluid connection is situated between the source of fluid pressure and the duct of the MEMS apparatus; a control valve being disposed in the fluid connection; and a guidance and control system being connected to the control valve, wherein the source of fluid pressure comprises one of external air, combustion products and stored energy.