A nonpowered wall-faucet device is used for freeze prevention in water pipeline systems. The wall-faucet device is easy to build and install on exterior water spigots. The device contains a ball valve system, a float valve system, and a temperature sensitive valve system.

Thermal control systems that include variable conductivity metamaterial units are provided. The metamaterial unit a plurality of thermally conductive plates, a plurality of first bonds, each of which connects two adjoining thermally conductive plates, and a plurality of second bonds, each of which connects two adjoining thermally conductive plates. Also included is a load inducer constructed to cause the plurality of thermally conductive plates to move between a non-contact state, in which opposing surfaces of the plurality of thermally conductive plates are not in direct contact, to a contact state, in which the opposing surfaces of the plurality of thermally conductive are in at least partial direct contact, so as to change a thermal conductivity of the metamaterial unit from a first value to a second value. Through the ability to design the effective thermal conductivity as a function of temperature a passive thermal control capability is achieved by the introduction of thermal stability regions that will passively ensure thermal stability.

A pressure cap structure for a cooling system having variable opening pressure, which is applied to a cooling system for circulating cooling water to radiate heat generated by an engine of a vehicle, and maintains the inside pressure of the cooling system in a predetermined range, the pressure cap may include a positive pressure spring mounted in a valve body, and operated to connect the cooling system to the outside when the pressure of the cooling system rises, and a shape memory member restored to the initial shape when reaching a predetermined temperature, and mounted between the positive pressure spring and a spring guard supporting the positive pressure spring.

A pressure cap structure for a cooling system having variable opening pressure, which is applied to a cooling system for circulating cooling water to radiate heat generated by an engine of a vehicle, and maintains the inside pressure of the cooling system in a predetermined range, the pressure cap may include a positive pressure spring mounted in a valve body, and operated to connect the cooling system to the outside when the pressure of the cooling system rises, and a shape memory member restored to the initial shape when reaching a predetermined temperature, and mounted between the positive pressure spring and a spring guard supporting the positive pressure spring.

A valve device for controlling a fluid flow includes a flow control valve (15) having a valve housing (19) with a supply connection (9) and a user connection (11). A valve piston (17) is guided inside the valve housing (19) longitudinally moveable and controls the passage to the user connection (11) by a thermocouple (61) via an orifice (37, 39) depending on the temperature of the fluid flow. A pressure compensator (21) is connected to the supply connection (9) and keeps the pressure drop across the orifice (37, 39) constant.

A valve device for controlling a fluid flow includes a flow control valve (15) having a valve housing (19) with a supply connection (9) and a user connection (11). A valve piston (17) is guided inside the valve housing (19) longitudinally moveable and controls the passage to the user connection (11) by a thermocouple (61) via an orifice (37, 39) depending on the temperature of the fluid flow. A pressure compensator (21) is connected to the supply connection (9) and keeps the pressure drop across the orifice (37, 39) constant.

The invention relates to a cooling module for a vehicle control unit, comprising a cooling element, connections for conducting a coolant through the cooling element, a turbulence insert placed in the cooling element comprising at least first cooling fins, and at least one first bimetal located in the cooling element, wherein the at least one first bimetal is placed such that it displaces the at least one group of first cooling fins depending on a temperature-dependent shape change of the at least one first bimetal. The invention also relates to a vehicle control unit with a cooling module and a method for water cooling a vehicle control unit.

In a sanitary installation part (1) which, along with a functional unit (7), forms a flow volume regulator, it is proposed that a regulating element (13), which can be adjusted along an adjustment path, be coupled to a temperature-sensitive drive unit (15) such that different regulating positions of the regulating element (13) are set in dependence on the temperature of the medium flowing through the installation part (1), wherein the different regulating positions realize in each case different volume-flow dependencies (11, 12, 45, 48) and/or flow resistances.

In a sanitary installation part (1) which, along with a functional unit (7), forms a flow volume regulator, it is proposed that a regulating element (13), which can be adjusted along an adjustment path, be coupled to a temperature-sensitive drive unit (15) such that different regulating positions of the regulating element (13) are set in dependence on the temperature of the medium flowing through the installation part (1), wherein the different regulating positions realize in each case different volume-flow dependencies (11, 12, 45, 48) and/or flow resistances.

A valve includes an inlet, an outlet, and a biasing element. The biasing element includes a first spring element, a second spring element, and a valve element. The second spring element includes at least one bimetallic disk including a first and second material. The first material includes a first coefficient of linear thermal expansion, and the second material includes a second coefficient of linear thermal expansion different than the first coefficient of linear thermal expansion. The valve element disposed on an end of the first spring element.