A system for protecting an engine from damage due to vibration while the engine is not operating is provided. The system includes an engine having a crankshaft, at least one piston, at least one bearing, a lubricating fluid source, and a fluid pump associated therewith and a controller operationally connected to and configured to control the fluid pump. When the system is in a first mode, the controller is configured to control the fluid pump in a duty cycle to maintain a predetermined minimum fluid pressure of the lubricating fluid such that a lubricating fluid film is present between the at least one bearing and the crankshaft while the engine is not operating.

According to one embodiment, a rotorcraft includes a body, a rotor blade, a drive system that can be operated to rotate the rotor blade, and an emergency valve control unit. The drive system contains a first gearbox assembly, a second gearbox assembly, a first lubrication system that can deliver lubricant to the first gearbox assembly, and a second lubrication system that can deliver lubricant to the second gearbox assembly. The drive system also contains an emergency valve that can be opened to deliver lubricant from the first lubrication system to the second gearbox assembly. The emergency valve control unit can instruct the emergency valve to open.

A system for controlling a fluid operation of a machine. The system includes a main pump of the machine, a supplemental pump of the machine, a fluid maintenance circuit comprising a processing circuit, and control system. The fluid maintenance system includes at least one memory device and at least one processor configured to access the memory device. The control system comprises a processing circuit, is electrically couplable to the main pump, the supplemental pump and the fluid maintenance circuit, and is configured to control the post-lubrication operation of the machine based on at least one of the following (1) a fluid operation service schedule and (2) data associated with the machine.

A system for controlling a fluid operation of a machine. The system includes a main pump of the machine, a supplemental pump of the machine, a fluid maintenance circuit comprising a processing circuit, and control system. The fluid maintenance system includes at least one memory device and at least one processor configured to access the memory device. The control system comprises a processing circuit, is electrically couplable to the main pump, the supplemental pump and the fluid maintenance circuit, and is configured to control the post-lubrication operation of the machine based on at least one of the following (1) a fluid operation service schedule and (2) data associated with the machine.

A system for controlling a fluid operation of a machine. The system includes a main pump of the machine, a supplemental pump of the machine, a fluid maintenance circuit comprising a processing circuit, and control system. The fluid maintenance system includes at least one memory device and at least one processor configured to access the memory device. The control system comprises a processing circuit, is electrically couplable to the main pump, the supplemental pump and the fluid maintenance circuit, and is configured to control the post-lubrication operation of the machine based on at least one of the following (1) a fluid operation service schedule and (2) data associated with the machine.

A system for controlling a post-lubrication fluid operation of a machine is disclosed. The system includes at least one pump of the machine, a fluid maintenance system and a control system. The fluid maintenance system includes at least one memory device and at least one processor configured to access the memory device. The memory device stores machine data and a fluid operation service schedule. The control system is electrically coupled to the at least one pump and the fluid maintenance system, includes at least one processor and is configured to control the post-lubrication operation of the machine based on at least one of the following (1) the machine data and (2) the fluid operation service schedule.

A device for the supply of lubricant with a lubricant pump (101), which has a driveshaft (103), and a motor (107). The motor (107) is designed to drive the driveshaft (103). At least one clutch (109, 111, 113) serves to establish and/or interrupt a force flow between a shaft in the force flow of a transmission and the driveshaft (103).

According to one embodiment, a rotorcraft includes a body, a rotor blade, a drive system that can be operated to rotate the rotor blade, and an emergency valve control unit. The drive system contains a first gearbox assembly, a second gearbox assembly, a first lubrication system that can deliver lubricant to the first gearbox assembly, and a second lubrication system that can deliver lubricant to the second gearbox assembly. The drive system also contains an emergency valve that can be opened to deliver lubricant from the first lubrication system to the second gearbox assembly. The emergency valve control unit can instruct the emergency valve to open.

According to one embodiment, a rotorcraft includes a body, a rotor blade, a drive system that can be operated to rotate the rotor blade, and an emergency valve control unit. The drive system contains a first gearbox assembly, a second gearbox assembly, a first lubrication system that can deliver lubricant to the first gearbox assembly, and a second lubrication system that can deliver lubricant to the second gearbox assembly. The drive system also contains an emergency valve that can be opened to deliver lubricant from the first lubrication system to the second gearbox assembly. The emergency valve control unit can instruct the emergency valve to open.

A system for controlling a post-lubrication fluid operation of a machine is disclosed. The system includes at least one pump of the machine, a fluid maintenance system and a control system. The fluid maintenance system includes at least one memory device and at least one processor configured to access the memory device. The memory device stores machine data and a fluid operation service schedule. The control system is electrically coupled to the at least one pump and the fluid maintenance system, includes at least one processor and is configured to control the post-lubrication operation of the machine based on at least one of the following (1) the machine data and (2) the fluid operation service schedule.