Cylinder head seal for stroke piston internal combustion engine, has sensors with sensory coating and electrical isolating hard material that covers sensory coating, and amorphous diamond like carbon coating that consists of carbon

摘要

The seal has a sealing plate (10) with a metal plate coating, and sensors integrated in the sealing plate for detecting operating parameters that act on the seal. The sensors are thin coating sensors (26, 28) such as temperature sensor, pressure sensor, deformation sensor and the capacitive distance measuring sensor, superimposed on a material coating of a sealing plate in thin coating technology. The sensors have a sensory coating and an electrical isolating hard material that covers the sensory coating, and an amorphous diamond-like carbon (DLC)-coating that consists of carbon.