IAV in collaboration with Cummins performed real-time on-road oil consumption measurements with a Lubrisense. Published at the 5th international Motoren Kongress, February 2018.
Title: “Real-time on-road oil consumption measurements for a commercial heavy-duty Diesel engine”
Authors: Tom George, Co-author: Volker Schille, both IAV GmbH, Thomas McKinley Ph.D., Co-author: Trenton Berardi, both Cummins Inc., USA
Abstract: “Oil consumption rate is a critically important parameter for modern commercial Diesel engines which commonly use cooled EGR and exhaust aftertreatment for emissions control. Specifically, it is related to several failure modes such as EGR cooler fouling, EGR valve sticking, Diesel oxidation catalyst poisoning and Diesel particulate filter ash loading. In addition, a low oil consumption leads to longer service intervals and a higher uptime of the vehicle.
In response, oil consumption rate measurement technology has dramatically improved. With mass spectrometry, it is now possible to measure oil emission (and thereby oil consumption) with an accuracy of 1 to 2 grams per hour and response times shorter than one second.
While these methods have been applied during dynamometer testing, that is only an approximation of real-world operation, which includes factors such as ambient pressure and temperature variation, angularity and g-loading. In-situ, on-road oil consumption measurement capability would be an important step forward, analogous to development of portable emissions measurement equipment that has revealed a new understanding of real-world emissions under real-world driving cycles and operating conditions.
To that end, this presentation presents on-road application of mass spectrometry to measure transient oil consumption in a heavy-duty truck. Approaches to address instru- mentation application and calibration are described, along with test measurements over a range of urban and intra-city highway driving conditions.”
Turbocharging is one of the key technologies in current and future engine development. Due to the increasing requirements that extend beyond power output and torque alone, the internal and external mechanical components of turbochargers are being subjected to an ever-increasing load spectrum.
2014, Kehrwald, Jäger, Sailer, Hadler
The oil emission of a combustion engine has a direct influence on CO2 and particulate emissions. In order to determine oil emission caused specifically by the piston group, part of the exhaust gas flow is taken and analyzed using a mass spectrometer directly downstream of the exhaust valve in the exhaust manifold…
2017, Papadopoulos, Becker, Ehnis, Kunzel, et al.
The aim of the research cluster “Fuel in Oil” is the investigation and quantification of the interaction between the fuel and the lubrication oil caused by late post injections, which are applied for the regenerationof the particulate filter or the NOx storage catalyst. To achieve the objectives, different phenomena like the fuel entry into the lubrication film, the fuel-oil transport by means of the piston rings, the evaporation of fuel out of the oil pan and the impact of the oil separator of the oil dilution were…
2015, Seel, Geppert, Meister, Ehrly, Behn, Feindt, Bregar, Lyubarskyy, Oliva
Modern downsizing in connection with the future more rigorous exhaust limit values for cars, commercial vehicles and off-highway applications, is a great challenge for internal combustion engine systems and components. In this context, increased oil emission leads to increased particle and HC emissions. Additionally, the efficiency of the exhaust gas aftertreatment and the pre-ignition…
2014, Hadler, Lensch-Franzen, Gohl, Mink
The measurement of oil consumption and the investigation of oil consumption mechanisms in combustion engines are subject to various research projects. Methods like drain and weight, or such using tracers like radioactive substances, sulphur dioxide or pyrene are often too slow or insensitive for dynamic engine test cycles…
2013, Behn, Feindt, Krause, Matz