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 |
|