An operating structure of an exhaust heat recovery device may include a bypass valve rotatable about a rotation shaft to open and close a bypass passage; a heat exchanger communicating with the bypass passage, a valve actuator inserted into the heat exchanger, and having a piston moved upward and downward depending on a temperature of coolant; a guide unit in which an end of the piston is slidably inserted, and at which an end of a rod is slidably inserted; a displacement transmission medium accommodated in the guide unit, and moved along with the piston; a link unit rotatably connected to the bypass valve and the rod, and converting sliding motion of the rod into rotation of the bypass valve; and an elastic restoring unit operating the rod so that the rod is inserted into the guide unit, or operating the bypass valve so that the bypass valve is closed.

The embodiments relate to a method for detecting the temperature of a fluid flow of a control valve which has an electromagnetic actuator, in which a temperature-sensitive resistor is exposed to the fluid flow, and is integrated into a detection circuit. As a function of the fluid temperature, a primary circuit of the electromagnetic actuator is inductively influenced by the detection circuit.

An expansion valve includes: a body having an insertion hole in a partition separating a first passage from a second passage; a power element configured to generate a drive force for opening or closing a valve section; a shaft extending through the insertion hole and configured to transmit the drive force to a valve element; a vibration-proof spring coaxially supporting the shaft and biasing the shaft radially inward to apply a sliding resistance thereto; and a flexible O-ring supported by one of an inner surface of the support part defining the insertion hole and an outer surface of the shaft and being in close contact with the other thereof. The O-ring, sliding portions of the shaft and the support part, and the vibration-proof spring are arranged in this order from a first passage side toward a second passage side in an axial direction of the shaft.

A valve assembly includes an inlet and an outlet, which open into a working chamber of the valve assembly, and an actuator. In a non-actuated state of the actuator, a flow passage between the inlet and the outlet is blocked. The actuator is optionally a shape-memory actuator that can be actuated one time or comprises a shape-memory actuator, which suddenly changes its external shape upon reaching a conversion temperature, which is dependent on the alloy composition thereof, and which can be generated by a controllable electrical heating device of the valve assembly. The actuator irreversibly destroys a pipe element separating the inlet from the outlet in the working chamber upon actuation, whereby the inlet and the outlet are connected to one another with respect to flow via the working chamber.

A connection arrangement has a crimp connector and a wire fixed in place in it, the crimp connector having a first and a second clamping plate, both single pieces, which in an assembled state clamp the wire between them and fix the wire in place with a tensile strength force acting in a longitudinally axial direction. Inner surfaces of the first and second clamping plate face one another at least in the assembled state are executed in a first form in the preassembled state. The first and second clamping plate fit tightly with one another and are deformed in the assembled state with a tool into a second form differing from the first that the wire, due to the deformation of the first and second clamping plates, forms at least one wave. A related valve and a related method are also disclosed.

The invention relates to a thermostatic mixing valve with integrated flow diverter provided with a first coupling for a control lever for the flow rate adjustment and the flow diversion through a valve group that is housed between a base and a cylindrical body, and with a second coupling for a knob for the temperature adjustment through a thermostatic device, said valve including a member for the transmission of the flow rate adjustment and flow diversion control that directly connects the control lever to the valve group passing through the cylindrical body without moving it, the latter being also enclosed within an external casing secured to the base and achieving a watertight sealing with the base.

A water control system including a showerhead and a tub faucet. The faucet has a temperature controlled valve configured in a first mode to automatically restrict fluid flow through the faucet and direct fluid to the showerhead once the fluid flowing through the faucet reaches a predetermined temperature, referred to as a hot mode. The faucet also has a manual override member configured to manually restrict fluid flow through the faucet and to the showerhead to allow cold showers, referred to as a cold mode. The valve includes a piston, and a sleeve configured to establish the hot mode and the cold mode.

A flushing device (1) for a sanitary article (2), in particular a urinal or a toilet, said flushing device comprising a control unit (3), and a flushing valve (4) that can be controlled by means of the control unit (3) for controlling a flushing procedure, wherein a fluid for flushing or for cleaning the sanitary article (2) is introduced during a flushing procedure, wherein it is possible by means of the control unit (3) to predetermine a flushing regime for the flush activation. The control unit (3) further comprises a temperature sensor (5) for detecting the ambient temperature (T), wherein the temperature sensor (5) is connected by way of a data channel (7) to the control unit (3) and wherein the flushing regime can be adjusted on the basis of the ambient temperature (T).

Methods and systems for modulating airflow may include a metering device comprising a face, an aperture through the face being defined by an aperture rim, and a metering appendage disposed adjacent to the aperture and coupled to the aperture rim and/or the face. The metering appendage may comprise a shape memory alloy and may be configured to transition from a first geometry to a second geometry.

A valve includes an outer structure. The valve includes a hollow shaft that includes holes formed therein, the shaft disposed within the outer structure and translatable from a first position to a second position. A memory metal alloy (MMA) spring is coupled to the shaft and the outer structure, the MMA spring expanding and moving the shaft from the first position to the second position in response to a temperature of a fluid. A valve head is coupled to the shaft and adapted to be biased within the outer structure, the valve head closing a bypass inlet in the first position and allowing fluid to enter the bypass inlet in the second position, and transferring fluid from the bypass inlet into the hollow shaft so that the fluid can exit the valve via an outlet. A pressure relief mechanism may be included.