Vorrichtung zur Erfassung des Drucks und der Temperatur im Saugrohr einer Brennkraftmaschine und Verfahren zu ihrer Herstellung

摘要

The invention relates to a device for detecting the pressure and the temperature in the induction pipe of an internal combustion engine. A temperature sensor and a pressure sensor are fitted in an common housing. The pressure sensor is fixed together with an evaluation circuit with practically no twisting to a support. According to the invention, the housing has at least two separate chambers. One of said chambers is connected to the induction pipe by means of a tube and forms a sealed pressure chamber. The segment of the support on which the pressure sensor is fixed is located inside said pressure chamber. The other chamber is used to locate and fix the remaining part of the support that bears the connecting elements. Sealed glued joints neutralizing mechanical tensions are provided in order to fix the support and seal off the pressure sensor.