Emission Test Results
Parameter |
EURO-III |
Limit |
Engg. Targets |
Test Results |
NOx (g/kWh) |
5.0 |
4.3 |
4.19 |
CO (g/kWh) |
2.1 |
1.8 |
1.45 |
HC (g/kWh) |
0.66 |
0.55 |
0.26 |
PM (g/kWh) |
0.1 |
0.085 |
0.064 |
Smoke (m-1) |
0.8 |
0.7 |
0.271 |
|
Highlights of work :
|
VP 37 rotary pump with EDC. |
|
Max. injection pressure 920 bar. |
|
Start of Injection (Sol).
|
2 to 3 deg aTDC at full loads |
|
3 to 5 deg aTDC at part loads |
|
|
6 hole nozzle with tuned shallow re-entrant bowl |
|
Mean swirl reduced from 2.2 to 1.6. |
|
VCO injectors - 17.5% HE, 1.5 K. |
|
Optimisation of maps for driveability (governing), timing, smoke, boost control. |
|
Oil consumption control design features. |
|
Conventional turbocharger. |
EURO-III performance achieved without
» 'EGR' 'Oxicat' Waste - gate turbocharger
EURO - 4 CRDI Diesel Development
4-Valve configuration engine designed for CRDI system
OPTIMISED SPECIFICATIONS
|
4V, Central & Vertical injector, central bowl |
|
Low swirl |
|
Shallow bowls |
|
High pr injection (2nd gen 1600 bar CRDI) |
|
Injection rate control |
|
Pilot & post injection with rate shaping |
|
Injector with 7 holes, HE, K, KS |
|
Variable Geometry Turbocharger |
|
Proportional EGR( 8 – 40%) |
|
DOC |
|
DPF |
CNG HCV For Bus Application
|
BS-III Emission Compliant |
|
Emission test on engine dynamometer |
|
Closed loop system with cat-con |
|
CNG Injection System – 4 bar pressure |
|
|
CO (g/kW-hr) |
NMHC(g/kW-hr) |
NOx (g/kW-hr) |
BS - III norms |
2.1 |
0.66 |
5 |
Injection |
0.9 |
0.162 |
1.3 |
Carburetion |
1.01 |
0.26 |
1.2 |
|
|
LPG Passenger Car For OEM Application
|
BS-III Emission Compliant |
|
Mass emission on Chassis dynamometer |
|
Consistency test on additional four vehicles |
|
Closed loop system with cat-con |
|
Fuel consumption on road = 15 km/ltr. |
|
|
HC (g/km) |
NOx (g/km) |
CO (g/km) |
BS - III norms |
0.2 |
0.15 |
2.3 |
Performance achieved on LPG |
0.08 |
0.05 |
0.51 |
|
|
 |
1985 |
First Tractor IDI – DI conversion |
1987 |
First LCV IDI-TC |
1988 |
First LCV IDI-DI conversion |
1989 |
First Tractor DI TC engine |
1992 |
First SUV IDI-TC Euro-1 |
1995 |
4st-Lean Burn gasoline engine
|
1996 |
Pump-less Lubrication system for 2st. Patented |
1997 |
First LPG 3W |
1998 |
Technology on 4-V diesel , First LPG 2W |
1999 |
Oxicat , Diesel Particle filter, water injection, EGR |
2000 |
First Euro-2 HCV diesel, Electronic Diesel Control |
2003 |
First LPG Car – BS3 |
2004 |
First Euro-3 diesel |
2005 |
First LCV & SUV CNG-BS3 |
2006 |
First 3W LPG – BS3, 3W IDI - BS2, First Tractor TC Tier-2 |
2008 |
First Euro-4 CRDI diesel, First 2st 3W CNG – BS3, First HCV CNG – BS3 |
 |
2009 |
|
HCNG concept engine !!!! |
Tier-4 NA Tractor engine !!!! |
|
 |
2010 |
|
Tier-3 diesel engine !!!! |
High power density 3-cyl engine !!!! |
Dual Fuel CNG engine !!!! |
BS-2 (proposed ) Genset Diesel engines !!!! |
|
 |
2010 |
|
HCCI concept engine !!!! |
|
Future Goals
High Power Diesel Genset Engine
6 Cylinder Direct Injection TCA
Power Up-gradation |
: |
85 to 127 kW (35 %) |
Min BSFC |
: |
152 g/hp-hr |
Emission Targets |
: |
MoEF Norms |
|
Structural analysis |
|
Thermodynamic analysis |
|
Cooling circuit design |
|
Combustion Optimization with Modified FIP, Nozzle Turbocharger etc. |
|
Emissions (g/kW-hr) |
NOx |
CO |
HC |
PM |
Smoke (m-1) |
Proto engine |
6.8 |
0.8 |
0.20 |
0.230 |
0.20 |
|