An assembly for a fluid circuit of a turbine engineincludes a main branch, a fluid control valve, and a bypass branch which is arranged in parallel to the main branch. The fluid control valve includes a main outlet which is fluidly connected to the main branch and a bypass outlet which is fluidly connected to the bypass branch. The fluid control valve including a shutter, a spring for biasing the shutter, and control members for electrically controlling the shutter to a main open position or a bypass position. The spring for biasing the shutter is configured to bias the displacement of the shutter to the bypass position when a fluid pressure value is lower than a first threshold value.

An assembly for a fluid circuit of a turbine engineincludes a main branch, a fluid control valve, and a bypass branch which is arranged in parallel to the main branch. The fluid control valve includes a main outlet which is fluidly connected to the main branch and a bypass outlet which is fluidly connected to the bypass branch. The fluid control valve including a shutter, a spring for biasing the shutter, and control members for electrically controlling the shutter to a main open position or a bypass position. The spring for biasing the shutter is configured to bias the displacement of the shutter to the bypass position when a fluid pressure value is lower than a first threshold value.

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.

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.

An oiling device includes a passage system that circulates and feeds oil to an oiling object. A control unit includes a storage unit that has stored therein a first abnormality pressure set value that differs according to oiling temperature; the first abnormality pressure set value is set to a lower pressure as the oiling temperature is higher. The control unit executes an abnormal stop of the oiling object when an oiling pressure detected by an oiling pressure detecting unit is equal to or lower than the first abnormality pressure set value corresponding to an oiling temperature detected by an oiling temperature detecting unit.

An oiling device includes a passage system that circulates and feeds oil to an oiling object. A control unit includes a storage unit that has stored therein a first abnormality pressure set value that differs according to oiling temperature; the first abnormality pressure set value is set to a lower pressure as the oiling temperature is higher. The control unit executes an abnormal stop of the oiling object when an oiling pressure detected by an oiling pressure detecting unit is equal to or lower than the first abnormality pressure set value corresponding to an oiling temperature detected by an oiling temperature detecting unit.

A vehicle may include a driving motor supplying driving force to vehicle wheel; a power converter using a coil provided in the driving motor to transform power input from the external power source; a battery charged according to counter electromotive force of the driving motor in a regenerative braking mode, charged according to the power transformed by the power converter in a charging mode, and supplying driving power to the driving motor in a driving mode; an oil pump supplying oil to the driving motor; a detector detecting temperature of the oil; and a controller controlling the oil pump to be operated in a warm-up mode when the oil temperature detected by the detector is less than a first threshold temperature and the battery is in the charging mode, and applying reference power to the oil pump to move the oil to the driving motor in the warm-up mode.

A lubricant system for a gear assembly of an aircraft is presented. The lubricant system includes a main lubricant conduit and an emergency lubricant conduit joined with a valve, and further wherein the valve defines a closed position disposing lubricant through the emergency lubricant conduit when an engine is at rest, and wherein the valve defines an open position disposing lubricant through the main lubricant conduit when the engine is in operation.

A lubricant system for a gear assembly of an aircraft is presented. The lubricant system includes a main lubricant conduit and an emergency lubricant conduit joined with a valve, and further wherein the valve defines a closed position disposing lubricant through the emergency lubricant conduit when an engine is at rest, and wherein the valve defines an open position disposing lubricant through the main lubricant conduit when the engine is in operation.

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.