Taking Heavy Duty Diesel Engine Oil Performance to the Next Level, Part 1: Optimizing for Improved Fuel Economy

2014 ◽  
Author(s):  
Wim van Dam ◽  
James Booth ◽  
Gary Parsons
Keyword(s):  
Diesel Engine ◽  
Fuel Economy ◽  
Engine Oil ◽  
Heavy Duty ◽  
Heavy Duty Diesel Engine ◽  
Oil Performance ◽  
Heavy Duty Diesel

Sooted Diesel Engine Oil Pumpability Studies as the Basis of a New Heavy Duty Diesel Engine Oil Performance Specification

2002 ◽  
Author(s):  
David M. Stehouwer ◽  
Greg Shank ◽  
Steven N. Herzog ◽  
Charles W. Hyndman ◽  
Bernard G. Kinker ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Engine Oil ◽  
Heavy Duty ◽  
Performance Specification ◽  
Heavy Duty Diesel Engine ◽  
Oil Performance ◽  
Heavy Duty Diesel

Development of Fuel Economy Engine Oil for Heavy Duty Diesel Engine

2015 ◽  
Author(s):  
Yoichiro Nakamura ◽  
Kenji Tomizawa ◽  
Takahiro Onishi ◽  
Takashi Hashimoto ◽  
Motoshige Sato ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Fuel Economy ◽  
Engine Oil ◽  
Heavy Duty ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel

The Development of Fuel Economy Test Method for Heavy Duty Diesel Engine Oil (The First HD Engine Test Method and the New JASO DH-2F Category)

2017 ◽  
Vol 10 (2) ◽  
pp. 502-509
Author(s):  
Ken Hashimoto ◽  
Kenji Tomizawa ◽  
Yoichiro Nakamura ◽  
Takashi Hashimoto ◽  
Takahiro Tatani ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Fuel Economy ◽  
Test Method ◽  
Engine Oil ◽  
Engine Test ◽  
Heavy Duty ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel

Impact of military JP-8 fuel on heavy-duty diesel engine performance and emissions

2007 ◽  
Vol 221 (8) ◽  
pp. 957-970 ◽  
Author(s):  
G Fernandes ◽  
J Fuschetto ◽  
Z Filipi ◽  
D Assanis ◽  
H McKee
Keyword(s):  
Particulate Matter ◽  
Diesel Engine ◽  
Fuel Economy ◽  
Engine Performance ◽  
Heavy Duty ◽  
Heavy Duty Diesel Engine ◽  
Performance And Emissions ◽  
Heavy Duty Diesel ◽  
Engine Performance And Emissions ◽  
The Impact

Investigating the impact of jet fuel on diesel engine performance and emissions is very important for military vehicles, due to the US Army Single Fuel Forward Policy mandating that deployed vehicles must refuel with aviation fuel JP-8. There is a known torque and fuel economy penalty associated with the operation of a diesel engine with JP-8 fuel, due to its lower density and viscosity. On the other hand, a few experimental studies have suggested that kerosene-based fuels have the potential for lowering exhaust emissions, especially particulate matter, compared to diesel fuel #2 (DF-2). However, studies so far have typically focused on quantifying the effects of simply replacing the regular DF-2 with JP-8, rather than fully investigating the reasons behind the observed differences. This research evaluates the effect of using JP-8 fuel in a heavy-duty diesel engine on fuel injection, combustion, performance, and emissions, and subsequently utilizes the obtained insight to propose changes to the engine calibration to mitigate the impact of the trade-offs. Experiments were carried out on a Detroit Diesel Corporation (DDC) S60 engine outfitted with exhaust gas recirculation (EGR). The results indicate that torque and fuel economy of diesel fuel can be matched, without smoke or NO x penalty, by increasing the duration of injection to compensate for the lower fuel density. The lower cetane number of JP-8 caused an increased ignition delay and increased premixed combustion, and their cumulative effect led to relatively unchanged combustion phasing. Under almost all conditions, JP-8 led to lower NO x and particulate matter (PM) emissions and shifted the NO x-PM trade-off favourably.

The soot handling ability requirements and how to solve soot related viscosity increases of heavy duty diesel engine oil

2017 ◽  
Vol 69 (5) ◽  
pp. 683-689 ◽  
Author(s):  
Zhongping Tang ◽  
Zhengwen Feng ◽  
Peng Jin ◽  
Xisheng Fu ◽  
Hua Chen
Keyword(s):  
Diesel Engine ◽  
Soot Formation ◽  
Screening Method ◽  
Research Work ◽  
Engine Oil ◽  
Heavy Duty ◽  
Content Type ◽  
Viscosity Increase ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel

Purpose The purpose of this paper is to identify the feature of soot in diesel engine oil and provide a method to stably disperse these soots using effect additives which is benefical for lubricants to pass related engine tests. Design/methodology/approach This paper designed experiments to investigate the dispersant type, treat level and different dispersant interactions which influence on lubricant soot-related viscosity increase. The research work developed an effective dispersant package which can well solve the soot-related viscosity increase, allowing pass Mack T-11 and Mack T-8 engine tests and demonstrated the helpfulness of using a quickly screening method developed by a steel piston diesel engine CA 6DL2-35. Findings The effect of dispersant treat level on the viscosity increase of the oil samples was negligible. Dispersant booster can effectively improve the soot handling ability of heavy-duty diesel engine oils (HDDEO), and the appropriate treat level of dispersant booster can help HDDEO pass Mack T-8 and Mack T-11 engine tests. Practical implications The test results are useful for formulators to select the appropriate dispersants or dispersant booster to develop the HDDEO packages which can meet the modern diesel engine lubrication requirements. Originality/value Most previous studies in this field were carried out on soot formation mechanism and soot-related wear rather than how to solve the soot-related viscosity increasing of HDDEO. This paper describes the soot dispersing requirements of different HDDEO specifications and developed an effective dispersant package which can well deal with Mack T-11 and Mack T-8E standard engine tests soot handling ability requirements.

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