| 摘要 |
The Force-Barrier is a very fast force applier and remover on or from a reciprocating body. The Force-Barrier is a completely passive device. It needs no control, and switches the force always at the same location regardless the orientation and gravity. In case the reciprocating body is driven by pressurized liquid or compressed gas, the Force-barrier is a substitute to a directional valve, or on-off valve, but faster, consuming less energy, and not being in need of control. The Force-Barrier enables the use of at least one spring and/or at least one electro motor in rebound-effectors and other reciprocating devices. The Force-Barrier may be implemented as a disk placed in between a cylinder and a piston, wherein the cylinder has two internal diameters, and the piston has two external diameters, and wherein there is a step between the two diameters of the piston and the two diameters of the cylinder.
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