In closed-loop systems, the use of conventional hydraulic reservoirs is constrained by system dynamics and installation space; therefore, pressurized reservoirs must be employed to form a closed hydraulic circuit, thereby reducing the overall equipment footprint.
In closed-loop hydraulic systems, conventional hydraulic reservoirs can be constrained by system movement and installation volume. SCHWERLL describes the use of a pressurized reservoir / booster tank to form a closed hydraulic circuit and reduce the installation footprint.
According to SCHWERLL’s official product information, booster tank outlet pressure is typically maintained within 2β4 bar according to the system oil-pump inlet-pressure requirement. For wind-turbine installations of 18 MW and above, the official page gives approximately 3 bar outlet pressure as an application example. The same page describes fixed-type pressure vessels for expansion in the example system context; the supplied equipment scope is confirmed for the specific project.
