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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

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