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1 Journal of KONES

1 2010

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The experimental assessment of air supply system modification on inlet air filtration efficiency and military vehicle engine effectiveness improvement

Dziubak T., Trawiński G.

Journal of KONES

2010

Vol. 17, No. 3

79-86

Specific features of air inlet system of BWP-1 vehicle UTD-20 engine are shown. The tests results of filtration efficiency and air flow drag for BWP-1 vehicle air filter standard version are presented. The necessity of UTD-20 engine air supplying system constructional changes are proved. The inlet air filtration system for BWP-1 engine with the porous filter was proposed and performed. The characteristics of the air purification efficiency (fi=f(mp) and flow drag Delta p- f(mp) Delta p= f(Omega c) for designed air filter were determined. Absorbency of filter for air nominal stream of engine BWP-1 was specified. The designed and executed partition air filter was subjected to comparative tests on an engine test bench. The influence of modernized air filter and fuel dose increase on engine effective parameters were determined. The tests covered comparison of effective parameters (determined for maximum load) of a UTD-20 engine equipped with a standard air filter (variant 1), a modernized air filter (variant 2) and additionally, for the modernized air filter, with injection pump with fuel dose increased (variant 3). There were determined the influence the proposed changes on indicated and effective torque during engine free acceleration and its mechanical efficiency as well.