Patent ID: 6938827
Filing Date: 2005-09-06
Classification: G05D,Y10T

Abstract:
1. A mixing valve comprising: a housing having an axially extending bore and formed with a hot-water inlet port, a cold-water inlet port axially offset therefrom, and a mixed-water outlet port all opening into the bore; a tubular valve slide axially shiftable in the bore between one end position blocking the hot-water inlet port and unblocking the cold-water inlet port, an opposite end position blocking the cold-water inlet port and unblocking the hot-water inlet port, and through intermediate positions partially blocking the hot- and cold-water inlet ports, whereby the axial position of the slide determines the ratio of hot and cold water fed from the inlet ports to the outlet port; a thermostat bearing axially on the slide and having a temperature-sensing part at the outlet; a temperature selector mounted on the housing and bearing axially on the thermostat; a partition sleeve centered on the axis in the valve slide and having ends fitting in the bore; and axially spaced annular hot-water and cold-water webs fixed to the partition sleeve and to the tubular valve slide, forming a mixing compartment opening into the sleeve, and having axially oppositely directed passages opening axially toward each other into the mixing compartment and axially oppositely toward the respective hot- and cold-water inlet ports, whereby water coming in through the inlet ports, passes through the respective passages into the mixing compartment, is mixed in the mixing compartment, flows from the mixing compartment into the sleeve, and flows axially in the sleeve over the part of the thermostat.