Patent ID: 8517282

Claim:
A mixing valve having respective inlets for hot and cold water and an outlet for temperature controlled water, valve means including a valve member movable in an axial direction relative to hot and cold seats for varying the relative proportions of hot and cold water supplied to a mixing chamber, thermostatic means including a thermostat that extends in the axial direction and is responsive to temperature of the water in the mixing chamber for adjusting the valve member to control movement of the valve member in accordance with user selection of the outlet water temperature, wherein the valve member is provided with an array of holes for one of the cold water and hot water to flow into the mixing chamber in the axial direction, the holes opening to the mixing chamber at an end surface of the valve member and being elongated in the axial direction such that water flowing through the holes forms a series of jets that emerge from the end surface of the valve member in the axial direction, and the valve member is configured for the other of the hot and cold water to flow into the mixing chamber in a radial direction over the end surface and intersect the jets emerging from the holes such that penetration of the radial flow by the jets is responsive to inlet pressure of the hot water and the cold water, and wherein an upper portion of the thermostat is seated at the end surface of the valve member where the radial flow and jets intersect immediately adjacent to the thermostat whereby changes in the inlet pressure of either of the hot water and the cold water generates an enhanced response from the thermostat to reduce deviation of the outlet water temperature from a set temperature.