A new method for the investigation of unburned oil emissions in the raw exhaust of SI engines

P. K. Püffel; W. Thiel; R. Frey; U. Boesl

doi:10.4271/982438

A new method for the investigation of unburned oil emissions in the raw exhaust of SI engines

P. K. Püffel, W. Thiel, R. Frey, U. Boesl

Natural Sciences

Research output: Contribution to journal › Conference article › peer-review

13 Scopus citations

Abstract

The study of oil emission is of essential interest for the engine development of modern cars, as well as for the understanding of hydrocarbon emissions especially during cold start conditions. A laser mass spectrometer has been used to measure single aromatic hydrocarbons in unconditioned exhaust gas of a H₂-fueled engine at stationary and transient motor operation. These compounds represent unburned oil constituents. The measurements were accompanied by FID and GC-FID measurements of hydrocarbons which represent the burned oil constituents. The total oil consumption has been determined by measuring the oil sampled by freezing and weighing. It has been concluded that only 10 % of the oil consumption via exhaust gas has burned in the cylinders. A correlation of the emission of single oil-based components at ppb level detected with the laser mass spectrometer to the total motor oil emission has been found. Thus, the system provides an on-line method for measurement of the oil consumption.

Original language	English
Journal	SAE Technical Papers
DOIs	https://doi.org/10.4271/982438
State	Published - 1998
Event	International Fall Fuels and Lubricants Meeting and Exposition - San Francisco, CA, United States Duration: 19 Oct 1998 → 22 Oct 1998

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10.4271/982438

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title = "A new method for the investigation of unburned oil emissions in the raw exhaust of SI engines",

abstract = "The study of oil emission is of essential interest for the engine development of modern cars, as well as for the understanding of hydrocarbon emissions especially during cold start conditions. A laser mass spectrometer has been used to measure single aromatic hydrocarbons in unconditioned exhaust gas of a H2-fueled engine at stationary and transient motor operation. These compounds represent unburned oil constituents. The measurements were accompanied by FID and GC-FID measurements of hydrocarbons which represent the burned oil constituents. The total oil consumption has been determined by measuring the oil sampled by freezing and weighing. It has been concluded that only 10 % of the oil consumption via exhaust gas has burned in the cylinders. A correlation of the emission of single oil-based components at ppb level detected with the laser mass spectrometer to the total motor oil emission has been found. Thus, the system provides an on-line method for measurement of the oil consumption.",

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T1 - A new method for the investigation of unburned oil emissions in the raw exhaust of SI engines

AU - Püffel, P. K.

AU - Thiel, W.

AU - Frey, R.

AU - Boesl, U.

PY - 1998

Y1 - 1998

N2 - The study of oil emission is of essential interest for the engine development of modern cars, as well as for the understanding of hydrocarbon emissions especially during cold start conditions. A laser mass spectrometer has been used to measure single aromatic hydrocarbons in unconditioned exhaust gas of a H2-fueled engine at stationary and transient motor operation. These compounds represent unburned oil constituents. The measurements were accompanied by FID and GC-FID measurements of hydrocarbons which represent the burned oil constituents. The total oil consumption has been determined by measuring the oil sampled by freezing and weighing. It has been concluded that only 10 % of the oil consumption via exhaust gas has burned in the cylinders. A correlation of the emission of single oil-based components at ppb level detected with the laser mass spectrometer to the total motor oil emission has been found. Thus, the system provides an on-line method for measurement of the oil consumption.

AB - The study of oil emission is of essential interest for the engine development of modern cars, as well as for the understanding of hydrocarbon emissions especially during cold start conditions. A laser mass spectrometer has been used to measure single aromatic hydrocarbons in unconditioned exhaust gas of a H2-fueled engine at stationary and transient motor operation. These compounds represent unburned oil constituents. The measurements were accompanied by FID and GC-FID measurements of hydrocarbons which represent the burned oil constituents. The total oil consumption has been determined by measuring the oil sampled by freezing and weighing. It has been concluded that only 10 % of the oil consumption via exhaust gas has burned in the cylinders. A correlation of the emission of single oil-based components at ppb level detected with the laser mass spectrometer to the total motor oil emission has been found. Thus, the system provides an on-line method for measurement of the oil consumption.

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JO - SAE Technical Papers

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T2 - International Fall Fuels and Lubricants Meeting and Exposition

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ER -

A new method for the investigation of unburned oil emissions in the raw exhaust of SI engines

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