Thermo bypass valve and a method for detecting an error of the same

摘要

Thermo bypass valve and a method for detecting an error of the thermo bypass valve, comprising a valve body (10), which is configured in such a way that in its interior an outlet passage (14) and a bypass passage (16) having a intake passage (12) come into contact, so that by way of its interior a of an outer side can be selectively introduced fluid is removed or which is guided past a piston arrangement (20), which in the interior of the valve body (10) is arranged and a heat expansion material (23), which is received therein in such a manner that, during the substantially linear movement of the piston assembly (20) by expansion or contraction of the heat expansion material (23) as a function of a temperature of the fluid the intake passage (12), optionally, with the outlet passage (14) or of the bypass passage (16), and a spring element (30) in the region between the piston assembly (20) and an inner surface of the valve body (10) and a resilient force of repulsion is arranged on the piston assembly (20) in a direction in which the piston assembly (20) during the contraction or leakage of the heat expansion material (23) is moved, exerts in such a way that the intake passage (12) with the bypass passage (16) in combination.