Thermostatic valve
AssigneeHansgrohe SE
InventorsHelmut Wolber, Stephan Gruhler, Franz Wanner, Werner Lorch
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Abstract
A thermostatic valve contains a hollow cylindrical valve element, each of whose two ends form an inlet port for hot or cold water. The mixed water formed by mixing hot and cold water strikes a temperature sensor which, as a function of the temperature, displaces the valve element to a greater or lesser extent. Within the valve element is located a mixing device, which divides the inflowing hot water into several flows, namely two radially directed flows and an axial flow flowing round the end of a sleeve. The radial parts of the hot water flow are encountered by an axial cold water flow. This leads to a particularly intimate mixing of hot and cold water before the temperature sensor is reached.
Claims14
A thermostatic valve having a casing with an inlet for cold water, an inlet for hot water and an outlet for mixed water, a temperature sensor which is exposed to the mixed water and responsive to a mixed water temperature, a valve element which is movable by the temperature sensor as a function of the mixed water temperature for oppositely directed opening or closing of two inlet ports whereof one of the ports controls a flow of hot water and another of the ports controls a flow of cold water, and further comprising a mixing device for mixing the flows of said hot and cold water before reaching the temperature sensor, wherein the mixing device divides at least one of said flows into a radial part and an axial part by deflecting part of said at least one of said flows, and wherein the flows mix by striking one another partly radially and partly axially.
A thermostatic valve having a casing with an inlet for cold water, an inlet for hot water and an outlet for mixed water, a temperature sensor which is exposed to the mixed water temperature, a valve element which is movable by the temperature sensor as a function of the mixed water temperature for the oppositely directed opening or closing of two inlet ports, and a mixing device for mixing the hot and cold water before reaching the temperature sensor, wherein the mixing device comprises a sleeve with a free end, and in a vicinity of the free end, the sleeve has radial passages through which radial flow from at least one of the hot and cold water meets axial flow for said mixing.
Dependencies are inferred from the claim text.