High compression ratioSpray tip penetrationMultiple injectionA diesel spray tip penetration was simulated with CFD by varying the compression ratio from the conventional compression ratio of a diesel engine, 18:1, to an ultra-high compression ratio of 100:1. The gas densities of the spray chambers...
1.On the basis of discussing the positive effect of highcompress ratio, high pressure injection, and other factors on diesel engine combustion process, the article puts foreword that utilizing highcompress ratioand making use of high pressure common rail injection system to realize high pressure inje...
In general, the RCM is used to simulate a single compression stroke of an internal combustion engine and is mainly used to measure ignition delay time as a function of temperature, pressure and fuel/oxygen/diluent ratio [117].He et al. [118...
10. The composition of claim 9 where the volume ratio of homopolymer to the component ranges from about 1:1 to about 1:100. 11. The composition of claim 9 where the component is an alkyl nitrate selected from the group consisting of 2-ethylhexyl nitrate (2EHN), iso-propyl nitrate, iso...
This makes even more sense if you using forced induction to increase the power of your engine. 5 good ways to reduce your compression ratio Low compression pistons. This seems to be the way to go. The pistons are much shorter than conventional ones, thereby decreasing the stroke. A small ...
The best method we have found is to calculate the effective compression ratio (ECR) with boost. The problem is that most people use an incorrect formula that says that 14.7psi of boost on a 8.5:1 motor is a 17:1 ECR. So how in the world do people get away with this combination on...
Thus the current study examines the combustion, emission, and performance characteristics of a four-stroke VCR engine employing three different WCVOs (Ground Nut, Palm, and Sunflower). The blending is done in a ratio of 30:70 (30 % oil with 70 % Diesel) and for the engine loads varying...
The researchers marked that the 20% n-heptanol-80% diesel fuel blend was the ideal ratio for diesel engine applications. In another study, El-Seesy et al. [28] scrutinized the combustion and exhaust emission profiles that occurred with the use of methyl oleate biodiesel-n-heptanol blends in...
1. A method for operating an internal combustion auto-ignition engine utilizing a fuel/air mix, comprising the steps of: providing said internal combustion auto-ignition engine with combustion volumes each having a compression ratio so that the fuel/air mix auto-ignites; varying an ignition point...
Therefore, in this embodiment, during the operation in the PCI range, the injection amount and the injection timing of the pre-injection P1 are primarily adjusted, and thereby, a height ratio of the first peak and the second peak is brought close with respect to the target value, and the ...