These results further support the view that the deposits are formed from combustion of the lubricant rather than any fuel contribution. Scanning electron microscope SEM analysis revealed different topographies dependent upon the location of the deposit in the engine.
Base number BN - Higher detergency and BN value Acid number AN - Different number due to additive chemistry changes Fourier transform infrared FTIR spectrum - Different baseline spectra due to additive chemistry and base oil changes Lubricant Health and Degradation Lubricant degradation is a chemical irreversible deterioration of the lubricant.
Original equipment manufacturer's OEM engine oil specification. Lubricant EGR also affects the engine lubricant. While EGR is a good thing for the environment, it presents challenges to those responsible for engine maintenance, including lubrication.
Xamine Engine Xamine Basic Engine monitors wear and contamination. Due to changes in injection and combustion, TGDI engines produce increased soot and fuel dilution. Lubrication Engineers uses premium quality base oil and best-in-class additive technology to formulate engine oils that maintain their viscosity, keep engine wear to a minimum, and help ensure dependability.
Soot is 98 percent carbon by weight, and has an original size of 0. It is recommended for extended drain interval applications in reciprocating engines such as those found in trucking fleets as well as construction equipment and forklifts.
Further spectrographic analysis revealed that when compared to HDD soot a much lower proportion of the carbon atoms present in NGEO deposits were graphitic. The increase in soot concentrations must be controlled by dispersant additives that, in case of depletion, can cause viscosity increase, antiwear additive depletion, filter plugging, reduction of lubricant flow, valve train wear, bearings failure, sludge and loss of fuel efficiency.
Accelerated timing chain wear is another commonly occurring problem. Soot Soot is formed during the combustion process and enters the crankcase with combustion gas blow-by.
It provides consistent, accurate monitoring of turbine oil for mechanical, operational and environmental factors that can affect the performance and lifespan of the oil and the equipment. This means the lubricant here must handle higher temperatures, raising the concern of deposit formation, which may lead to ring sticking and engine damage.
In addition, natural gas engine manufacturers also list the levels of sulfated ash and the additive concentrations that are acceptable for use in their particular engines. For example, the Caterpillar lean burn natural gas engine Figure 4 requires a low ash oil with SAE 30 or 40 viscosity.
The last 40 years of reciprocating engines have seen many changes, whether for the purpose of mobility or captive power generation.
This resulted in increased wear and made it difficult to obtain OEM approvals. Too much ash can also result in detonation from combustion chamber deposits. If combustion of the oil is incomplete, or byproducts are deposited in the cylinder, serious problems can develop. LE prepares a detailed report for the customer, explaining the data and providing recommendations for any follow-up actions that should be taken.
The technology provides a fast and nondestructive analysis method with no sample preparation or weighing of oils. Secondly, wear rate trends are best established after the interpretation of at least three oil samples taken at the same sample interval; in other words, at three similar oil change intervals, or if the oil has not been changed, at the same operating interval, such as hours.
Typical Valve Recession in a Natural Gas Engine Excessively high concentrations of certain additives, such as zinc or phosphorus, can also be harmful to catalyst equipped natural gas engines, because these additives may deactivate the exhaust catalyst by forming glassy-amorphous deposits which prevent the exhaust gas from reaching the active surfaces of the catalyst, which in turn makes control of harmful emissions impossible.
All model year and rebuilt electronically controlled engines for on-highway service employ retarded diesel fuel injection timing in both urban transient and steady-state operating cycles. For more information about specific hardware offerings not shown on this website, please contact us.
Infineum has been working to develop next generation gas engine oils that deliver advanced engine protection over longer drain intervals. For vehicles ranging from passenger cars and motorcycles to service vans, utility trucks and long-haul big rigs, LE's transportation and fleet products exceed manufacturers' specifications.
High temperature high shear (HTHS) viscosity of engine oils is a critical property that relates to the fuel economy and durability of a running engine.
The drivers behind lowering HTHS viscosity are new global governmental regulations to improve fuel economy (FE) and. 8 | Oil Analysis Handbook for Predictive Equipment Maintenance Common oil analysis parameters for engines and rotating machines such as turbines, and gearboxes Category Parameters Engines.
The Oil Analyzers Fluid Analysis Program protects valuable equipment by oil analysis services to help you get the most from your lubricants and extend MOTOR VEHICLE Gas Engines Hours/7, miles By vacuum pump through dipstick retaining tube or sampling.
In fact, oil analysis will become an increasingly important part of the new lower emission diesel engine maintenance programs. U.S. Heavy-duty Emissions Requirements In the United States, emission standards continue to tighten (Figure 1).
Directions in Engine-Efficiency and Emissions Research Conference October 19, friction reduction and engine efficiency improvement Lubricant Formulation - Base-oil, additives: requirements, lubricant composition “in operation” “at the most critical locations for best performance at surfaces – boundary friction, wear.
Xamine oil analysis for engines.
For monitoring of engines, primarily in mobile equipment, Le offers Xamine Basic Engine and Xamine Advanced Engine oil analysis test slates. Xamine Engine. Xamine Basic Engine monitors wear and contamination. It is recommended for non-extended drain interval applications, such as off-road usage.An analysis of motor oils as critical in the efficient operation of engines