Abstract:
A diagnostic system for an exhaust system of an internal combustion engine is disclosed. The diagnostic system comprises a catalyst component and a marker that undergoes a physical transition above a transition temperature of the marker. A method for determining if a catalyst component in an exhaust system for an internal combustion 5 engine has been exposed to a deactivating temperature is also disclosed.
Abstract:
A method of monitoring for combustion anomalies in a gas turbomachine includes sensing an exhaust gas temperature at each of a plurality of temperature sensors arranged in an exhaust system of the gas turbomachine, comparing the exhaust gas temperature at each of the plurality of temperature sensors with a mean exhaust gas temperature, determining whether the exhaust gas temperature at one or more of the plurality of temperature sensors deviates from the mean exhaust temperature by a predetermined threshold value, and identifying an instantaneous combustion anomaly at one or more of the temperature sensors sensing a temperature deviating from the mean exhaust temperature by more than the predetermined threshold value.
Abstract:
L'invention concerne un capteur de température pour véhicule automobile comprenant : - un élément sensible à la température, - au moins un premier fil électrique (7) connecté audit élément sensible à la température, - au moins un second fil électrique (9) connecté au premier fil (7) et configuré pour transmettre une information de température dudit élément sensible, - un moyen de connexion électrique pour connecter le premier fil électrique (7) au second fil (9) électrique associé, et - un isolant électrique (11) au niveau de la connexion électrique du premier (7) et du second fil électrique (9). Selon l'invention, ledit isolant électrique (11) présente au moins un décrochement (30) délimitant au moins un logement ouvert (29) pour recevoir ledit moyen de connexion (15), de sorte que ledit moyen de connexion (15) électrique soit accessible depuis l'extérieur dudit isolant (11).
Abstract:
A temperature sensor includes a housing and a temperature sensing element disposed in the housing. Electrical connections may extend from the temperature sensing element through the housing and an epoxy may be disposed in the housing. The epoxy may provide a thermal pathway between the sensing element and the housing and may be flexible to accommodate different rates of thermal expansion between the temperature sensing element and the electrical connections without requiring a separate mechanical strain relief. A temperature sensor system includes a temperature sensor and a mineral insulated cable coupled to the temperature sensor. The temperature sensor may be configured to be removably coupled to the mineral insulated cable via a stop flange and a sleeve coupled to the mineral insulated cable. The sleeve may be configured to provide stability and reduce vibrational stress to the temperature sensor system.
Abstract:
A detection device for internal combustion engines exhaust gases post- treatment systems has a casing (2, 3) housing a circuit arrangement (21, 31) including humidity sensor means (32), for measuring the humidity of the gas. The circuit arrangement further comprises temperature sensor means (33) and pressure sensor means (22), for detecting a gas temperature value and a gas pressure value, respectively. The gas temperature value can be used for compensating the humidity value obtained through the humidity sensor means (32) and the pressure value can be used for deducing the clogging degree of a filter of the post-treatment system. Preferably the pressure sensor means (22) are housed in a first chamber (8) of the casing (2-3) while the humidity sensor means (32) and the temperature sensor means (33) are housed in a second chamber (10b) of the casing (2, 3).
Abstract:
A temperature sensor (10) includes temperature detecting means and at least one of a catalyst and an adsorbent applied to the surface of the temperature detecting means. At least one of the catalyst and the adsorbent catalyzes an exothermic reaction of a reactant in gas on the temperature detecting means. A temperature that is increased by the exothermic reaction is detected by the temperature detecting means. The catalytic efficiency for the exothermic reaction of at least one of the catalyst and the adsorbent is reduced by sulfur poisoning. The temperature sensor (10) is disposed upstream of an exhaust purification system (30). Accordingly, it is determined that the temperature sensor is subjected to sulfur poisoning if the temperature detected by the temperature sensor is below a prescribed temperature.
Abstract:
A temperature sensor (10) capable of operation in high vibration environment includes a sensor sheath (14) mounted at the distal end of a mineral insulated cable (12). A resistance temperature detector (RTD) sensing element (16) is connected to leads (22a-22d) of the cable (12) within the sheath (14). The sheath (14) is filled at least partially with a ceramic thermal adhesive (38).
Abstract:
Die vorliegende Erfindung betrifft eine Steckverbindungsvorrichtung mit einem Temperaturmesskern, der vorzugsweise als Ringspaltreaktor in Laborkatalyseapparaturen beziehungsweise Mikrokatalyseapparaturen zur Aufnahme von pulverförmigen Katalysatoren verwendet wird. Die erfindungsgemäße Steckverbindungsvorrichtung kann in einfacher Weise mit Katalysatormaterial, insbesondere mit pulverförmigem Katalysatormaterial, befüllt werden. Durch den modularen Aufbau und die reproduzierbare Geometrie ist es möglich, Katalysedaten mit einer verbesserten Datenqualität zu erhalten und die Anlage vorteilhaft aufzuskalieren.
Abstract:
A method for analyzing a temperature of exhaust gas includes calculating an approximate temperature (Tα) at least one time by fitting a measured spectrum to a portion of theoretical spectra defined in association with a first temperature range (TC to TD) using a temperature (Tb, Tc, Td) determined in the an immediately previous preceding temperature analysis as a reference, and then determining a calculated temperature (Tβ) by fitting the measured spectrum to all the theoretical spectra over a second temperature range (TE to TF) that is narrower than the first temperature range, using the approximate temperature (Tα) as a reference.