Patent ID: 9733155
Date: 2017-08-15
CPC Classifications: G01J,G01M,G01N

Claim:
1. A diagnostic and monitoring system for a diesel engine, comprising: an exhaust gas analyzer in fluid communication with an exhaust gas outlet on the diesel engine, wherein the exhaust gas analyzer comprises an analysis chamber containing a portion of exhaust gas from the diesel engine, the analysis chamber being transparent to light, a laser light source disposed adjacent to the analysis chamber, a laser light diffuser disposed between the laser light source and the analysis chamber, a laser light detector disposed adjacent to the analysis chamber and generally opposite the light source, such that light from the laser light source passing through the analysis chamber is received by the laser light detector, wherein the laser light detector measures laser light energy passing through the analysis chamber, a logic processor in electronic communication with the laser light detector, the logic processor programmed to receive data of the measured laser light energy passing through the analysis chamber, and a memory device in electronic communication with the logic processor, the memory device configured to store the data of the measured laser light energy; wherein the logic processor is configured to detect increased particulate quantities and diameters in the exhaust gas based upon the measured laser light energy, and determine whether the diesel engine has lost compression or ignition efficiency; wherein the memory device is configured to store a detected increase in particulate quantities and diameters in the exhaust gas and a determination that the diesel engine has lost compression or ignition efficiency; and a data receiver configured to receive measurement data from the exhaust gas analyzer.