Thermostatic cartridge for the regulation of hot and cold fluids to be mixed

摘要

The cartridge comprises a slide valve for regulating the temperature of a mixture of hot and cold fluids. The slide valve is, under the action of a thermostatic element and in relation to an outer casing of the cartridge, which can be displaced along the central axis of the casing in such a way as to vary inversely the respective flow sections of an inlet for a first of the fluids, delimited axially between the casing and one of the two opposite axial surfaces of the slide valve, and of an inlet for the second fluid, delimited axially between the casing and the other axial surface of the slide valve. Therefore the cartridge can, effectively and economically, provide a good mixture of the two fluids, a flow passage.

主权项

1. A thermostatic cartridge for regulating hot and cold fluids to be mixed, the thermostatic cartridge comprising:
a casing, which is hollow, which defines an axis and which delimits an outlet for a mixture of the hot and cold fluids, a slide valve for regulating a temperature of the mixture, which:
has two opposite axial surfaces,interiorly delimits a flow passage which connects the axial surfaces together and through which a first fluid of the hot and cold fluids joins a second fluid of the hot and cold fluids in a direction of the outlet in order to form the mixture, andcan be displaced substantially along the axis in relation to the casing in such a way as to vary inversely the respective flow sections of a first fluid inlet for the first fluid, delimited axially between the casing and a first of the axial surfaces, and of a second fluid inlet for the second fluid, delimited axially between the casing and a second axial surface, of the axial surfaces, and a thermostatic element, which comprises a piston, connected to the casing, and a body secured to the slide valve, the piston and the body being mobile in relation to one another substantially according to the axis under an action of an expanding of a heat expandable material contained in the body along a thermosensitive part from which flows the mixture downstream of the slide valve, wherein the flow passage is adapted to direct the first fluid on the second fluid inlet, being at least partially delimited, by both a guiding surface for guiding the first fluid on the second fluid inlet, which runs over most of an inside periphery of the slide valve, and by an opposed surface which is radially opposite the guiding surface and which has, in an axial cross-section, substantially the same profile as the guiding surface.