DE3421106

• Main Authors: WERLBERGER, PETER, KILLMANN, IROLT. DR, CARTELLIERI, WOLFGANG., GRAZ, AT
• Format: Patent
• Language: English
• Published: 28.11.1985
• Edition: 4
• Subjects: BLASTING; CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FORCOMBUSTION CHAMBERS, e.g. FIREBRIDGES; COLORIMETRY; COMBUSTION APPARATUS; COMBUSTION ENGINES; COMBUSTION PROCESSES; CONTROLLING COMBUSTION ENGINES; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDEDFOR; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS INCOMBUSTION CHAMBERS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES; LIGHTING; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; MECHANICAL ENGINEERING; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; RADIATION PYROMETRY; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTIONAPPARATUS; TESTING; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR; WEAPONS

In order to observe and optically record the processes in the combustion chamber of an internal combustion engine during operation, at least one observation bore located in the wall of the combustion chamber is provided with a transparent window as well as an image pickup device, e.g. an endoscope, which may be inserted as far as to this window and is connected to an image recording unit by way of an image transmission device. In order to prevent the premature build-up of sooty deposits the window may be separated from the adjacent, cooled parts of the wall of the combustion chamber by a gap which will reduce the dissipation of heat.