Diesel engines. Fuel injection pumps and fuel injector low-pressure connections

The necessity of adapting diesel engines to work on vegetable oils is justified. The possibility of using rapeseed oil and its mixtures with petroleum diesel fuel as motor fuels is considered. Experimental studies of fuel injection of small high-speed diesel engine type MD-6 (1 Ch 8,0/7,5)when using diesel oil and rapeseed oil and computational studies of auto-tractor diesel engine type D-245.12 (1 ChN 11/12,5), working on blends of petroleum diesel fuel and rapeseed oil. When switching autotractor diesel engine from diesel fuel to rapeseed oil in the full-fuel mode, the mass cycle fuel supply increased by 12 %, and in the small-size high-speed diesel engine – by about 27 %. From the point of view of the flow of the working process of these diesel engines, changes in other parameters of the fuel injection process are less significant. Keywords diesel engine; petroleum diesel fuel; vegetable oil; rapeseed oil; high pressure fuel pump; fuel injector; sprayer

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RESEARCH INTO OPERATIONAL PARAMETERS OF DIESEL ENGINES RUNNING ON RME BIODIESEL

Transport ◽

10.3846/16484142.2006.9638076 ◽

2006 ◽

Vol 21 (4) ◽

pp. 260-268 ◽

Cited By ~ 7

Author(s):

Sergejus Lebedevas ◽

Andrius Vaicekauskas ◽

Galina Lebedeva ◽

Prutenis Janulis ◽

Violeta Makarevičienė

Keyword(s):

Diesel Engines ◽

Fuel Injection ◽

Technical Condition ◽

Fuel Injector ◽

Operational Parameters ◽

Harmful Emission ◽

Thrust Characteristics ◽

Ecological Parameters ◽

Experimental Researches ◽

Injection Phase

The results of motor experimental researches on operational parameters of diesel engines F2L511 and A41 are presented in the publication. Change of harmful emission of exhaust gases was determined and evaluated, fuel economy and thrust characteristics of diesel engines running on RME biodiesel compared to diesel fuel. The influence of technical condition of fuel injection aggregates was evaluated for parameters of harmful emission of diesel engines running on biodiesel by simulation of setback of fuel injection in alowable range of technical conditions ‐ the coking of nozzles of fuel injector. The complex improvement of all ecological parameters was evaluated by optimisation of fuel injection phase of diesel engines running on RME biodiesel. Objectives and aspects of further researches on indicator process of diesel engines were determined.

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