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.

In cases where a control device determines that a load is continuously less than a predetermined value for a predetermined period, the control device executes a first control to maintain the engine speed at a first rotation speed or higher, and when the control device determines that the load reached the predetermined value within the predetermined time, the control device executes a second control to maintain the engine speed at a second rotation speed or higher, which is higher than the first rotation speed. This provides a control device for an engine and an engine, which can restrain activation of an oil pressure switch attributed to an oil temperature.

Systems and methods disclosed provide an automotive fluids management and maintenance system (AFMMS) that manages and maintains fluids within vehicles by accurately and in a controlled manner directing the propulsion of these fluids into vehicle's internal components and also accurately and in a controlled manner draining fluids out of vehicle's internal components. The systems and methods enable a technician to dispense any desired fluid and pump the same into a vehicle internal component with speed, efficiency, accuracy, and in a very clean and unwasteful manner. The AFMMS is powered by a standard shop air supply. Once charged with air pressure, the AFMMS becomes mobile and is without any attachments, e.g., to a wall air supply, thus making it safe and convenient to be used around any shop environment, as well as outside in parking lots.

Systems and methods disclosed provide an automotive fluids management and maintenance system (AFMMS) that manages and maintains fluids within vehicles by accurately and in a controlled manner directing the propulsion of these fluids into vehicle's internal components and also accurately and in a controlled manner draining fluids out of vehicle's internal components. The systems and methods enable a technician to dispense any desired fluid and pump the same into a vehicle internal component with speed, efficiency, accuracy, and in a very clean and unwasteful manner. The AFMMS is powered by a standard shop air supply. Once charged with air pressure, the AFMMS becomes mobile and is without any attachments, e.g., to a wall air supply, thus making it safe and convenient to be used around any shop environment, as well as outside in parking lots.

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.

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.

An engine crank controller is provided. The engine crank controller permits cranking of an engine responsive to receiving an indication of a sufficient amount of an oil for the cranking of the engine, monitors, during a period subsequent to initiation of the cranking of the engine, a pressure of the oil of a lubrication system, in response to the pressure being less than a threshold, stops the engine by preventing the cranking, and, in response to the pressure being equal to or greater than the threshold, continues permitting the cranking.

An engine crank controller is provided. The engine crank controller permits cranking of an engine responsive to receiving an indication of a sufficient amount of an oil for the cranking of the engine, monitors, during a period subsequent to initiation of the cranking of the engine, a pressure of the oil of a lubrication system, in response to the pressure being less than a threshold, stops the engine by preventing the cranking, and, in response to the pressure being equal to or greater than the threshold, continues permitting the cranking.