90 Hp Diesel Driven Hydraulic Power Unit
OCS’s 90HP Diesel Driven Hydraulic Power Unit (HPU) plays a critical role in powering the 10T hydraulic winch used during pipeline post-trenching operations. Engineered as a self-contained, skid-mounted unit, this HPU is driven by a robust Diesel Engine with a maximum Engine power of 90hp and operating power of 75hp at 1800rpm, making it a dependable solution in offshore environments requiring continuous hydraulic power. The unit consists of two distinct pump circuits: the primary pump and integrated charging pump, which operate the winch, and a secondary pump that drives the fan for the heat exchanger.
The system operates on a closed-loop hydraulic configuration, ensuring efficient fluid recirculation and temperature regulation through its air-cooled radiator. The HPU’s design integrates the fuel and hydraulic oil tanks into the steel support structure, optimizing strength and space. Hydraulic oil is delivered at up to 3,000 psi (207 bar) with a flow rate of 7.7 m³/hr (34 USgpm), making it suitable for heavy-duty winching applications in challenging conditions. The diesel tank has a 151L capacity, with a fuel consumption rate of approximately 28L/hr.
Operational control is enhanced through an integrated electrical control panel, allowing operators to start/stop the engine, control the winch, and monitor key hydraulic parameters. Additionally, a pneumatic air motor is incorporated to crank the diesel engine during cold starts. Compact yet powerful, the HPU measures 2,520 x 1,200 x 2,040 mm and weighs 3.5mT, offering both mobility and performance.
