Thermostatic valve for automotive gearbox oil has bypass passage with a control cam

摘要

A thermostatic valve for automotive gearbox oil has a housing with an inlet (21) and an outlet (22) to an oil radiator and an internal by-pass passage (5). The bypass is opened and closed by a moving plug (31, 32). The bypass passage incorporates a control cam (51) that is directed towards the oil inlet (20) and cambered with respect to the incoming oil. Further claimed is a process to manufacture a suitable housing (2).