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TCT FUEL SYSTEM
 
A new cost competitive single point metering fuel system which will allow most Phase 2 Small Off Road Engines (SORE) meet EPA Phase 3 legislation without engine improvements or the use of a Catalyst
 
 
 
 
 
   Main benefits of the TCT fuel system are:

  • 30-40% engine out emissions (HC+NOx) reductions
  • Cost competitive
  • Up to 25% fuel usage reduction
  • Eliminates or reduces the amount of after treatment required
  • Compatible with 3 way catlytic after treatment with lambda 1 operation at all part load mode points
  • AFR control. Easy to calibrate - will allow SORE run lean at lighter loads and rich at high loads
  • Stable combustion at lambda 1 operation (able to run out to 20 to 1 AFR before any misfires occur)
  • Single point metering
  • Easy to apply electronic control / feed back control due to single point metering
  • Will operate on fuels like Gasoline, Kerosene (JP8), Alcohol, LPG and NPG
 
TCT Fuel System Technology in Co-Operation with  

Orbital statements about TCT

  • Orbital have worked with Fjolblendir on the development of the demonstration TCT and genset
  • Independent testing by Orbital shows that an optimised TCT has the capability to typicalli deliver HC+NOx emission results of over -30% as measured on the J1088 test cycle, whilst retaining good operating characteristics. The specific engine family emission improvement capability is linked to the performance of the base engine
  • The emission improvement offers the OEM potential to meet Phase III (or other) emission requirements without the use of a catalyst or aftertreatment.

 

SAE J1088 A cycle results on various Class 1 engines typically
show 30-40% reduction in HC+NOx
 
 
 
Engine
Loncin
G200F
2010
Honda
GX160
2010
ZS 173
2011
MTD 
170COA
2012
GX160
(Orbital)
2008
Baseline
(g/kWh)
HC

5,52

8,31

6,84

7,00

5,21

NOX

7,08

5,65

2,52

4,19

3,80

HC+NOx

12,6

13,96

9,35

11,19

9,01

CO

236

334,57

435,1

495,36

291,31

TCT
(g/kWh)
HC

5,23

6,44

4,44

5,08

3,27

NOX

2,07

1,89

2,59

1,94

2,79

HC+NOx

7,3

8,33

7,03

7,02

6,05

CO

333,3

340

323,8

382,1

211,00

Reduction
(g/kWh)
HC

-5,3%

-22,5%

-35,1%

-27,4%

-37%

NOX

-70,8%

-66,5%

+2,8%

-53,7%

-27%

HC+NOx

-42,1%

-40,3%

-24,8%

-37,3%

-33%

CO

-41,2%

-1,6%

-25,6%

-22,9%

-28%

 
Please visit the TCT Technology pages for further and more detailed technical information