Device for operating a fan

摘要

The internal combustion engine (1) drives a variable-capacity swashplate pump (5). This pump is connected to a feed pump (9) with a pressure filter (10) connected to the main hydraulic circuit (4) via non-return valves. The circuit includes a hydraulic motor (3) driving a fan (2) and a volume flow regulator (12). Leakage collection lines (6) pass fluid leaking from the pump and motor back to the low-pressure reservoir (8) via a cooler (7).