Einfluss der Diesel-Wasser-Emulsion auf das Brennverfahren von Medium-Speed-Motoren mit Pumpe-Leitung-Düse- und Common-Rail-Einspritzsystem

2018 ◽  
pp. 189-208
Author(s):  
Karsten Stenzel ◽  
Christian Reiser ◽  
Christian Elß ◽  
Roland Pittermann ◽  
Bernhard Fritsch
Keyword(s):  
Common Rail ◽  
Medium Speed

scholarly journals Simulation studies of selected characteristics of the injection system the common rail medium-speed research engine

2012 ◽  
Vol 151 (4) ◽  
pp. 72-76
Author(s):  
Leszek PIASECZNY ◽  
Mirosław WALKOWSKI
Keyword(s):  
Common Rail ◽  
Injection System ◽  
Graphical Form ◽  
Engine Operation ◽  
Fuel Supply ◽  
Injection Process ◽  
Medium Speed ◽  
Marine Engines ◽  
Medium Speed Engine ◽  
Marine Medium

Injection Systems of Common Rail type are becoming widely used in marine engines. The aim of the research and development of these systems is to optimize the multi-injection process. The authors of the paper present the results of research on the fuel supply system of research common-rail marine medium-speed engine. The study was conducted for the nominal circulation engine speed. For the analysis were established three variants of fuel supply – a single dose, two-piece and three-piece The interdependence of measured injection parameters and their effect on engine operation have been presented in graphical form.

scholarly journals Advanced Injectors for Common Rail Fuel Systems in Medium-Speed Diesel Engines. Concept and Design

2017 ◽  
Author(s):  
Л.В. Грехов ◽  
◽  
А.А. Денисов ◽  
Е.Е. Старков ◽  
А.С. Кулешов ◽  
...  
Keyword(s):  
Diesel Engines ◽  
Common Rail ◽  
Medium Speed

Benefits With Common Rail Injection for Medium Speed Engines

2003 ◽  
Author(s):  
Udo Schlemmer-Kelling ◽  
Thomas Montag
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Technical Conference ◽  
Common Rail ◽  
Nox Emission ◽  
Common Rail System ◽  
Port Authorities ◽  
Medium Speed ◽  
Common Rail Injection

The NOx emission of sea going ships is limited by the IMO. The black smoke emission is in the focus of the port authorities and the ship owners. More stringent limits are expected for the near future. Caterpillar Motoren decided to be pro active and to start an emission reduction program in the mid of the nineties. Inside the engine technology like: higher compression ratio, Miller Cycle, injection tuning and internal exhaust gas recirculation were investigated to reduce the NOx Emission. To lower the soot emission a Common Rail system was implemented. The effects of Pre-, Post- and Split injections were optimized for further emission reductions. A special trim of the injection characteristic can improve the transient load acceptance of the engine. A low emission strategy was defined.   NOTE: This paper was presented at the ASME 2003 Internal Combustion Engine Division Spring Technical Conference but was printed in the ASME 2003 Internal Combustion Engine and Rail Transportation Divisions Fall Technical Conference proceedings, pages 443–454. It should appear under the CIMAC heading.

scholarly journals Method of determining the single and two-part fuel dose injection in the Common Rail system of marine combustion engine

2014 ◽  
Vol 156 (1) ◽  
pp. 13-19
Author(s):  
Leszek PIASECZNY ◽  
Mirosław WALKOWSKI
Keyword(s):  
Combustion Engine ◽  
Common Rail ◽  
Dose Selection ◽  
Common Rail System ◽  
Injection Process ◽  
Fuel Delivery ◽  
Rail Systems ◽  
Medium Speed ◽  
Cr System ◽  
Selection Of

Marine combustion piston engines are more often equipped with common rail systems, which provide multi-part injection fuel delivery to the cylinder. Dose selection must take into account, among others, its duration, the engine speed and load torque. Practical use of a specific fuel dosing is usually preceded by a study on the test stand simulating the injection process and its dependence on the dose parameters. The authors have presented a method for the selection of these parameters in the case of one-and two-part injection in the medium speed marine engine. There has been presented the manner of creating a mathematical model of the fuel dosing during the injection and research of its characteristics in order to optimize the selection of the amount of fuel, that can be applied in the design of the CR system in the marine combustion engines.

Performance and Emission of a Common Rail Passenger Car Engine Fuelled with Palm Oil Biodiesel

2014 ◽  
Vol 564 ◽  
pp. 66-71
Author(s):  
M. Adlan Abdullah ◽  
Farid Nasir Ani ◽  
Masjuki Hassan
Keyword(s):  
Palm Oil ◽  
Operating Conditions ◽  
Common Rail ◽  
Oxides Of Nitrogen ◽  
Passenger Car ◽  
Performance And Emission ◽  
Medium Speed ◽  
Performance And Emissions ◽  
Palm Oil Biodiesel ◽  
Injection Strategies

This study investigated the effects of palm oil methyl ester biodiesel blends on a common rail passenger car engine in terms of performance, oxides of nitrogen (NOx) and smoke emissions. Up to 40% biodiesel blend was used in this study. As expected, running on biodiesel reduces full load torque and power. The fuel consumption increased up to 10%, particularly at part loads. On the other hand, the thermal efficiency only exhibit small difference between the fuels. As much as 46% reduction in smoke emissions was observed at 40% biodiesel content. The NOx emission was shown to be slightly increased under certain operating conditions at part loads, while showing reduction at other conditions. In general, biodiesel showed more significant effects on the performance and emissions at part load conditions. Thus, low and medium speed/load region was proposed as an area where improvement by injection strategies optimization can be made.

Advanced Common Rail Injection for Medium Speed Engines

2013 ◽  
Vol 3 (2) ◽  
pp. 28-35
Author(s):  
Klaus M. Heim ◽  
Marco Coppo
Keyword(s):  
Common Rail ◽  
Medium Speed ◽  
Common Rail Injection
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