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Pumpability of engine oils at low temperatures
Wear, 1979Abstract The pumpability of various engine oils at low temperatures has been investigated using a Haake-Rotovisko RV2 viscometer, a test engine and a laboratory pumping rig. The cold flow and cold pumpability properties of polymer-thickened engine oils can be predicted from the flow curves at low temperatures.
W.J. Bartz, W. Wiemann
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Chemical engineering at low temperatures
International Journal of Refrigeration, 1988Abstract Immense quantities of natural or man-made gas mixtures are treated in low temperature plants. Gases are liquefied for two reasons: reduction of volume to store and transport large quantities, e.g. LH 2 , LN 2 , LOX, LNG, LPG; and separation by distillation, e.g. air, natural gas, coal gas, refinery gas, synthesis gas.
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Very low temperature engineering
British Journal of Applied Physics, 1962The 93rd Science Meeting of the Low Temperature Group took the form of a discussion on `Low Temperature Engineering' which was led by Mr. Zvegintzov of the National Research Development Corporation. The main issue was that although in Britain cryogenic research involving hydrogen and helium temperatures was well developed, there were no corresponding ...
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Low Temperature Pumpability of Engine oils
SAE Technical Paper Series, 1984<div class="htmlview paragraph">During the winters of 1980-81 and 1981-82, major pumpability field problems were encountered in the US and Europe even though many of the oils involved met the requirements of the newly adopted SAE J300 SEP80. In an effort to understand these failures, pumpability requirements have been re-examined using a cross ...
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Low Temperature Oxidation, Engine Knock
1999A detailed knowledge of the combustion processes in internal combustion engines is required if one wishes to further improve on the remarkable development of engine technology and related fuel technology. Such improvements aim at the efficient use of fuels with a minimum amount of pollutant emissions. In the specific case of the spark ignited engine, i.
Jürgen Warnatz +2 more
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Low-Temperature Combustion Engine Control
2021Besides conventional spark ignition (SI) and compression ignition (CI) engines, low-temperature combustion (LTC) engines are investigated as an alternative combustion concept for use in engine systems. They hold promise to lower pollutant emissions while achieving a high efficiency.
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Low Temperature Combustion Engines
2017Current stringent emission legislation, market and environmental concern governs the automotive research for developing high-efficiency and low emission engines. Vehicle manufacturers meet the present emission norms using a combination of in-cylinder emission reduction methods and exhaust after-treatment devices. Proposed future emission norms are even
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Engine Lubrication And Fuel Economy At Low Ambient Temperatures
SAE Technical Paper Series, 1988<div class="htmlview paragraph">A low ambient temperature increases wear and fuel consumption in vehicle engines. The startability of the engine and the start-up of lubrication are highly dependent on the type of engine oil (mineral, semisynthetic, synthetic), whereas fuel consumption depends more on the engine type and driving conditions.< ...
Nylund, Nils-Olof +2 more
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Low-Temperature Engine Oil Pumpability in Full-Scale Engines
SAE Technical Paper Series, 1975<div class="htmlview paragraph">ASTM Committee D-2 has undertaken a program to develop a laboratory test which correlates with low-temperature engine oil pumpability in field service. As the first step in this program, pumpability data were obtained using thirteen ASTM Pumpability Reference Oils in seven full-scale engines.
M. L. McMillan +3 more
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The Performance of Engines at Low Operating Temperatures
SAE Technical Paper Series, 1935<div class="htmlview paragraph"><b>STARTING, oil pumping, sludging and wear are the subjects considered specifically in connection with low operating temperatures.</b></div> <div class="htmlview paragraph"><b>Tabular data and curves relating to starting are presented.
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