Device for recovering energy
A technology for recovering energy and energy, applied in the direction of accumulator devices, lifting devices, fluid pressure actuating devices, etc., to achieve the effects of simple configuration, reliable operation, and minimized heat loss
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[0024] The invention is described below on the basis of an example embodiment in which a crane boom 2 forms a load block 4 ( figure 2 ). The boom 2 can be raised by means of a power drive in the form of a hydraulic working cylinder 6 ; more specifically, the boom 2 can pivot about a connection point 8 . The working cylinder 6 is a hydraulic cylinder that can be driven by a hydraulic system 10 that is only figure 2 symbolically shown in , see figure 2 , where only the control valve assembly is marked 12 and the hydraulic pump is marked 14. The hydraulic system 10 may, in particular, be of a design commonly used in working machines, and therefore need not be described in detail here.
[0025] The accumulator cylinder 16 is mechanically shunted to the working cylinder 6 forming the power drive; that is, similar to the piston rod 20 of the working cylinder 6, the piston rod 18 of the accumulator cylinder 16 acts directly on the load block 4 (boom 2 )superior.
[0026] im...
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