Thermostatic assembly, in particular thermostatic cartridge

摘要

Thermostatic assembly, in particular thermostatic cartridge The thermostatic assembly comprises a casing (10), a thermostatic element which includes a thermosensitive body and a piston moving relative to one another along an axis (XX) of the casing function of the temperature of the mixed fluid, and a drawer (20) for regulating the temperature of the mixed fluid. The drawer is connected to the thermosensitive body to be moved along the axis inside a chamber (11) of the envelope so as to close, in respective inverse proportions, a hot fluid inlet passage (14 ) and a cold fluid inlet passage (15). The drawer is provided with a sealing part (22) including a peripheral part which is compressed radially against a wall (16) of the chamber, interposed axially between the inlet passages, so as to form a seal between these passages . In order to improve temperature regulation performance and reliability over time, the drawer is also provided with two peripheral arrangements (25) for trapping a lubricant on the peripheral part of the sealing piece, these peripheral arrangements being located axially. on either side of the peripheral part of the sealing part and being adapted to cooperate by adjusted contact with the wall of the chamber so as to have a reserve of lubricant (R) between the peripheral part of the part sealing and each peripheral arrangement. Figure for the abstract: Figure 2