A multi-port rotary plug valve may be used in a fluid delivery system of a vehicle to control flow of coolant fluid between a radiator, an electric drive motor, a battery, vehicle electronics, and one or more bypass lines. The valve may include a valve body that has ports at two or more levels along a height dimension of the valve body and a plug assembly that is rotatably disposed in the valve body. In addition, the valve may include a single-piece, conical seal disposed between the valve body and the plug assembly that is free of seams or joints.

An air release structure of an integrated flow control mechanism includes a flow control housing, a radiator nipple provided on an upper portion of the flow control housing and forming a bypass passage portion together with the flow control housing, a float provided in the bypass passage portion and an elastic member to support the float elastically and to selectively open the bypass passage portion.

An instruction duty computation unit computes an instruction duty ratio representing a ratio between an energization time and a non-energization time of a motor based on an actual rotation angle detected by a rotation angle sensor and a target rotation angle of a valve member. The rotation angle sensor detects an actual rotation angle of a valve member of a fluid control valve. A stress computation unit computes a valve member load torque of the valve member based on the actual rotation angle and an actual duty ratio of the motor. An actual duty computation unit computes a new value of the actual duty ratio based on an instruction duty ratio computed by using an instruction duty computation unit and a valve member load torque computed by using a stress computation unit.

Coolant valve for a vehicle includes a housing having a plurality of coolant ports, a valve element arranged in an adjustable manner in the housing in order to connect or disconnect coolant ports, and at least one seal arrangement. The seal arrangement bears in a sealing manner against the housing on one side and in a sealing manner against the valve element on the other side, the seal arrangement having a carrier element made of a first material and a sealing element made of a second material, the second material being softer than the first material. The sealing element has a first sealing lip bearing against the valve element and the carrier element having a supporting portion. The first sealing lip protrudes beyond the supporting portion with a free end, and the first sealing lip is pressed against the supporting portion when coolant flows through the coolant valve.

A passive diverter fitting for a cooling system of an engine includes a base defining an interior cavity, an inlet opening extending through the base that is in fluid communication with the interior cavity, an outlet opening that is in fluid communication with the interior cavity, and a bypass opening that is in fluid communication with the interior cavity. The base is configured to be removably disposed in a cavity of an engine block. The inlet opening is positioned to receive coolant when the passive diverter fitting is disposed in the cavity of the engine block. The outlet opening is in fluid communication with the area exterior to the engine block when the passive diverter fitting is disposed in the cavity of the engine block. The bypass opening is in fluid communication with an interior coolant passage of the engine block when the passive diverter fitting is disposed in the cavity of the engine block.

A cooling system of a hybrid vehicle include an engine, a drive motor, a main water pump, a cooling line, a heat-exchange line, a heater line on which a heater and an exhaust heat recovery device are provided, a coolant control valve unit selectively supplying coolant to the cooling line, the heat-exchange line and the heater line, a bypass line connecting the rear of the exhaust heat recovery device and the front of the heater, an auxiliary water pump that selectively supplies coolant from the exhaust heat recovery device to the front of the heater, a state measurement unit that measures an operation state of the vehicle and outputs a corresponding signal, and a controller configured for controlling operation of the engine, the drive motor, the main water pump, the coolant control valve unit and the auxiliary water pump according to the output signal of the state measurement unit.

A device that includes a thermostatic element, with a piston and a body movable along an axis with respect to one another under the effect of the expansion of a thermodilatable material, and a stopper moved axially by the body with respect to a fixed seat so as to open and close a fluid circulation passage. The stopper includes a flexible seal which rests sealingly against the fixed seat in order to close the passage, and a rigid frame which fixedly supports the seal. The frame includes a central portion, mounted around the body to be driven by the body, and a peripheral part, folded towards the axis, partially crushing the seal. The seal is held in place on the frame by being pushed, radially to the axis, directly against the body of the thermostatic element under the effect of crushing the seal by the peripheral portion of the frame.

A temperature sensor for a first fluid senses a temperature of the first fluid downstream of a heat exchanger. A supply for a second fluid changes a temperature of the first fluid. The supply for the second fluid passes through the heat exchanger. A valve is positioned upstream of the said heat exchanger on the supply for the second fluid, and controls a flow rate of the second fluid diverted into a bypass line compared to a flow rate of the second fluid directed through the heat exchanger, with the three-way valve controlled by a control in response to feedback from said temperature sensor. The valve changes the respective flow rates delivered into the bypass line and through the said heat exchanger in a non-linear manner with a change in valve position. A manned spaceship is also disclosed.

A thermal management assembly includes a fluidic command device connected to a first and second pump group and having four inlet and outlet ports and an auxiliary duct connecting the pump groups. The fluidic command device is configurable in a first configuration, in which working fluid flows into the first inlet port and out of the first outlet port, flowing into the first pump group, the auxiliary duct and the second pump group, a second configuration, in which working fluid flows into the second inlet port and out of the second outlet port, flowing in the pump groups, preventing flow in the auxiliary duct, and a third configuration, in which working fluid flows into the third inlet port and out of the third outlet port, flowing into the first pump group, and into the fourth inlet port and out of the fourth outlet port, flowing into the second pump group.

A fluidic control device of a thermal management assembly of a thermal regulation system of a vehicle has three operating groups. The thermal management assembly has first and second pump groups, fluidically connected by an auxiliary duct. The fluidic control device, fluidically connected to the first and second pump groups, and to the auxiliary duct, has three outlets, connectable to the three operating groups, respectively, and is configurable in a first working configuration in which flow of working fluid is regulated through the first and second outlets, preventing flow through the third outlet and the auxiliary duct, a second working configuration in which flow of working fluid is regulated through the third outlet, preventing flow through the first and second outlets and the auxiliary duct, and a third working configuration in which flow of working fluid is regulated through the auxiliary duct, preventing flow through the first and third outlets.