Combustion engine coolant thermostat valve

摘要

The coaxial sector of the second valve passage (31) has a perforated (51) guide (52) which is entered by and guides the second valve seal (30,36). The guide is designed as a tube (53) with three perforating slots etc. (51) at regular annular intervals and the guide is integrated with the bottom (15) of the valve housing (11). The passage duct through the guide (52) should connect without stages to the second valve passage (31) and goes over into the adjoining channel (19), the channel in turn enclosed by a pipe connection (54) forming an integral part of the guide (52). Thus guide and pipe (54) together are designed onto a cover piece (55) used to close off the top part of the valve housing (21,11). The return spring (33) thrusts between the first valve seal (22) and/or the actuator (20) housing (21) and secondly off the bottom of the main valve housing (11). One end of the spring is supported by the second valve inlet (31) or adjoining channel (19) so the spring surrounds the thermostatic actuator (20).