An apparatus employing pressure transients for transporting fluids from one reservoir to another, includes an at least partly enclosed space, and a body herein, where the body is movable relatively to the interior of the space. The apparatus further includes an opening in the enclosed space to allow a fluid to flow alternately in the direction into and out, and conduits in fluid communication with the opening and connected to the reservoirs. Further, an object is arranged to collide with the body so as to generate pressure transients in the partly enclosed space in order to produce a flow of fluid in the direction from the partly enclosed space towards the second reservoir, and to produce a flow of fluid in the direction from the first reservoir towards the partly enclosed space.

A microfabricated fluidic unidirectional valve includes a microfabricated elastomer material having a flow through channel. The microfabricated fluidic unidirectional valve also includes an elastomer flap attached to the elastomer material in the flow through channel. The elastomer flap forms a seal in the flow through channel to prevent fluid from flowing in a first direction through the flow through channel and to allow fluid flow in a second direction through the flow through channel.

A microfabricated fluidic unidirectional valve includes a microfabricated elastomer material having a flow through channel. The microfabricated fluidic unidirectional valve also includes an elastomer flap attached to the elastomer material in the flow through channel. The elastomer flap forms a seal in the flow through channel to prevent fluid from flowing in a first direction through the flow through channel and to allow fluid flow in a second direction through the flow through channel.

A pressure reducing device is disclosed for use with a gaseous fuel system. The pressure reducing device may include a body defining an inlet and an outlet, and a converging-diverging nozzle formed between the inlet and the outlet. The pressure reducing device may further include a shockwave inducing element disposed within the body between the venture and the outlet, and an airfoil located inside the body upstream of the shockwave inducing element and connected to move the shockwave inducing element.

A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate.

A magnetic-hydrodynamic force fluid logic controller is provide that includes a solid or flexible or flexible substrate, a fluid chamber disposed above the substrate, where the chamber includes a fluid under test that includes an active magnet, where the active magnet is disposed to control a magnetic north pole of the droplet and a magnetic south pole of the droplet, a two-dimensional distribution of magnetic elements a surface the solid or flexible substrate, where the magnetic elements comprise a magnetization in a magnetic north pole and magnetization in a magnetic south pole, where the magnetic elements are activated by an external magnetic field of the active magnet, where the droplets have a droplet magnetization, where the droplet magnetization is configured for droplet self-interaction by the magnetic elements and the active magnet, where the self-interaction comprises splitting, merging, propagation, logic, storage, memory and all possible combinations of logical circuit operations.

An apparatus and system are disclosed. The apparatus includes a first deformable conduit, including a passive self-pinching fluidic channel having an unsealed free first end and a first connecting port at a second end of the first deformable conduit, and a second deformable conduit, comprising an inflatable fluidic channel with a sealing first end, configured to enclose at least a portion of the passive self-pinching fluidic channel and to form a seal between an inner surface of the inflatable fluidic channel and an outer surface of the passive self-pinching fluidic channel, and a second connecting port at a second end of the second deformable conduit. Furthermore, the first deformable conduit contains a fluid at a first pressure, and the second deformable conduit contains the fluid at a second pressure.

An apparatus and system are disclosed. The apparatus includes a first deformable conduit, including a passive self-pinching fluidic channel having an unsealed free first end and a first connecting port at a second end of the first deformable conduit, and a second deformable conduit, comprising an inflatable fluidic channel with a sealing first end, configured to enclose at least a portion of the passive self-pinching fluidic channel and to form a seal between an inner surface of the inflatable fluidic channel and an outer surface of the passive self-pinching fluidic channel, and a second connecting port at a second end of the second deformable conduit. Furthermore, the first deformable conduit contains a fluid at a first pressure, and the second deformable conduit contains the fluid at a second pressure.