The results of experimental studies on load characteristics (3000 rpm) of a two-stroke engine 1D 8.7 / 8.2 with spark ignition, crankcase scavenging, air cooling, and direct fuel injection have been considered in the paper. Changing the design of the combustion chamber and spray nozzle allowed accomplishing different patterns of fuel and air charge formation. Forming lean fuel-air mixture (1.5>λcyl>1.0) is carried out at fixed composition in the clearance volume. Forming rich fuel-air mixture (1.0>λ>0.8) in the spark plug area with the air at λcyl<5 near the clearance volume walls enables the generation of a stratified fuel-air charge. Forming lean fuel-air mixture (1.5>λ>1.0) in the spark plug area with the air λcyl<5 near the clearance volume walls enables the generation of a stratified lean fuel-air charge. It has been revealed that generating the stratified lean fuel-air charge allows a reduction of fuel consumption by 16–27 % and a decrease in CO and CH emissions with exhaust gases up to 14 times in comparison with the generation of lean fuel-air charge.

1.
W.
Liu
, “Introduction to Hybrid Vehicle System Modeling and Control“ (
John Wiley & Sons Ltd
.,
2017
), pp.
11
14
.
2.
P.
Breeze
, “Piston Engine-Based Power Plants,” in
Chapter 4 - Spark Ignition Engines
(
Academic Press
,
2018
), pp.
35
45
.
3.
S.
Raiu
 et al., “
Particular bi-fuel application of spark ignition engines
,” in
IOP Conf. Ser.: Mater. Sci. Eng.
,
106
,
012038
(
2016
).
4.
D.
Ramasamy
 et al., “
Analysis of Modifications on a Spark Ignition Engine for Operation with Natural Gas
,” in
MATEC Web Conf.
,
74
,
00031
(
2016
).
5.
S.
Kryshtopa
 et al, “
Improvement of the model of forecasting heavy metals of exhaust gases of motor vehicles in the soil
,”
EEJET
2019
,
4
,
44
51
.
6.
V.
Korohodskyi
 et al., “
Development of a Three-Zone Combustion Model for Stratified-Charge Spark-Ignition Engine
,”
EEJET
2021
,
2
,
46
57
.
7.
V.
Korohodskyi
 et al., “
Determining the characteristics for the rational adjusting of an fuel-air mixture composition in a two-stroke engine with internal mixture formation
,”
EEJET
2020
,
2
,
39
52
.
8.
A.
Martyr
,
M.
Plint
,
Engine Testing
, 4th Edition
Chapter 10 - Dynamometers: The Measurement of Torque, Speed, and Power (Butterworth-Heinemann
,
2012
), pp.
227
258
.
9.
V.
Korohodskyi
 et al., “
Determining the criteria and the degree of the stratification of the air-fuel charge in a cylinder of a spark-ignition engine during injecting fuel
,” in
IOP Conf. Ser.: Mater. Sci. Eng.
,
977
,
012002
(
2020
).
10.
A.
Sokolik
, “
Samovosplamenenie plamya i detonatsiya v gazakh
“ (
M: AN SSSR, IKhF AN SSSR
,
1960
), pp.
261
274
.
11.
A.
Voinov
, “
Sgoranie v bystrokhodnykh porshnevykh dvigatelyakh
,”
Izd. 2-e, pererab. i dop.
(M.: Mashinostroenie,
1977
), pp.
89
97
.
12.
V.
Korohodskyi
 et al., “
Dependence of the coefficients of residual gases on the type of mixture formation and the shape of a combustion chamber
,”
EEJET
2016
,
1
,
4
12
.
13.
L.
Zholobov
 et al., “
Numerical evaluation of the quality of filling the engine cylinder with a fresh charge
.
J. Phys.: Conf. Ser.
,
1679
,
0420672020
(
2020
).
14.
V.
Korohodskyi
 et al.,
"Eksperimental'ne viznachennya koefitsienta vitoku robochogo tila pri produvtsi tsilindra u dvotaktnomu dviguni z iskrovim zapalyuvannyam
,"
Zbirnik naukovikh prats'
(Har'kov: UkrDAZT,
2010
), pp.
203
208
.
15.
C.
Leahu
 et al., “
The exhaust gas temperature control through an adequate thermal management of the engine
,” in
IOP Conf. Ser.: Mater. Sci. Eng.
,
444
,
072016
(
2018
).
16.
J.
Heywood
, “Internal Combustion Engine Fundamentals,” 2th Edition (
New York
:
McGraw-Hill Education
,
2018
), pp.
195
208
.
This content is only available via PDF.
You do not currently have access to this content.