Integrated gearbox lube and control system

A gearbox, comprising:

• a housing surrounding a gear system of the gearbox;
• a first fluid pressure-responsive system disposed within the housing;
• a second fluid pressure-responsive system disposed within the housing;
• a pump system disposed within the housing, the pump system flowing a solid pressurized fluid through a plurality of fluid passages disposed within the housing;
• wherein the gearbox comprises a flow divider disposed within the housing to divide the solid pressurized fluid into a first control stream output to the first fluid pressure-responsive system and a second control stream output to the second fluid pressure-responsive system;
• and
• wherein the first fluid pressure-responsive system is a clutch control system comprising:
• a hydraulic clutch that is selectively operable in an engaged position and a disengaged position based on fluid pressure;
• a manifold that selectively outputs the first control stream to the hydraulic clutch;
• and
• an electro-hydraulic servo valve (EHSV) that receives an electrical control signal and that controls the manifold to output the first control stream based on the electrical control signal, the hydraulic clutch induced to the engaged position in response to receiving the first control stream and induced to the disengaged position when the lacking the first control stream.

A pressure-system integrated gearbox, comprising:

• a plurality of pressure-responsive systems integrated in the gearbox wherein the plurality of pressure responsive systems includes a clutch control system, a lubrication system, and an actuation system;
• a pump system integrated in the gearbox, the pump system configured to flow a solid pressurized fluid through a plurality of fluid passages integrated in the gearbox;
• and
• a flow divider integrated in the gearbox and disposed in fluid communication with the pump system, the flow divider configured to divide the solid pressurized fluid into a plurality of controls streams, each control stream being output to a respective pressure-responsive system among the plurality of pressure-responsive systems, wherein the plurality of a control streams include a first control stream output to the clutch control system to control a hydraulic clutch, a second control stream different from the first control stream that is output to the lubrication system to lubricate a gear system, and a third control stream different from the first and second control streams that is output to the actuation system to control a hydraulic actuator.