摘要:
Oil aging and particulate building in a lubricant other than one exposed to combustion products is monitored by detecting light transmitted through the lubricant at least one, and preferably, two or more preselected wavelengths over a pathlength greater than about 0.5 cm wherein one wavelength is in the near infra-red spectrum and/or one wavelength is in the visible or near infra-red spectrum. The detected light when compared to predetermined values provides an indication of the condition of the lubricant.
摘要:
Tuning fuel composition delivered to a spark ignition, internal combustion engine as a function of driving cycle conditions results in improvements in one or more of fuel efficiency and combustion emissions.
摘要:
The present invention is a gasoline additive concentrate which remains liquid at low temperatures of about 0.degree. F. which contains a fatty acid, ester or mixtures thereof in combination with an alcohol, an amine or a mixture thereof.
摘要:
Distillate fuel compositions containing an alkyl ether mono amine having the formulaRO[C.sub.4 H.sub.8 O].sub.(9-18) CH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2whereR is a highly branched alkyl group derived from a Guerbet alcohol containing between 12 and 40 carbon atomsare effective in reducing the formation of intake valve deposits in internal combustion engines.