LPG (Over Air) Induction
for Diesel Engines – ‘Add-Gas’
Save thousands $$$ per month off your fuel costs *
The results:
Improved Fuel Economy
 | Extended Engine Life |
 | Improved Torque and Drivability
|
 | Reduced Emissions |
 | Reduced Service Costs |
 | Reduced Exhaust Temperatures |
TBG with Add-Gas has
systems for all Diesel engines, from small commercials trucks and vans,
4X4s, rigid trucks, prime movers, coaches, stationary engines including
lighting and pumping plants, mining equipment, fishing and local charter
vessels, and other diesel powered equipment. Add-Gas has many inherent
safety systems, has data logging capability,
and is remotely accessible by the GSM mobile network.
The TBG Add-Gas System
Features
 | Comprehensive Engine Warranty
|
 | Sophisticated Duel Phase LPG/air to
Diesel Induction |
 | Developed for all sizes Diesel Engines
|
 | Completely Non-Invasive Installation
|
 | No Engine Parameters Altered |
 | Seamless Return to Diesel Only
|
 | System can be Remotely Monitored
|
 | Full Data Logging Capability |
 | Can Reduce or Eliminate Diesel Knock
|
FEATURES AND BENEFITS
There are many
features and benefits associated with the TBG Add-Gas System
……. here are a few
The system can be retro or
factory fitted to any size, or age, Diesel engine
 | Installation process is completely ‘non
invasive’ |
 | Our TBG Add-Gas DPI control module,
manages the gas flow while monitoring load, manifold pressure, water
temperature, accelerator and service brake position |
 | Seamless return to ‘Diesel only’ usage
in the event of gas running out |
 | Small LPG tank required as only limited
quantity of LPG gas is consumed |
 | Increases fuel efficiency by completing
the combustion cycle of available diesel injected with up to 95%
complete burn |
 | Substitution rates of around 12% to 20%
of LPG, continuously controlled by the DPI module |
 | Extended service intervals / oil changes
due to reduced of engine ‘sludging’ and carbon deposits
|
 | Decreases in emissions. (Trueblue
GREEN in conjunction with CSMU Pty Ltd, is conducting country specific
emission testing under local conditions given the differing Diesel and
gas compositions and qualities) |
 | Reductions in exhaust temperatures of
around 20% |
 | Increased thermal and volumetric
efficiency. Combustion rate up from 70% to 95% |
 | System can be remotely contacted via a
GSM, radio or GPRS network to allow for software tuning (on the road)
and version upgrades |
 | Full engine data logging capability
|
 | Sensors, located throughout the engine
system, monitor the engine’s operating parameters, ensuring they remain
within manufacturer’s specifications |
FREQUENTLY ASKED
QUESTIONS
What does Duel
Phase Induction mean?
Duel Phase Induction is the
simultaneous combustion of two fuels, namely Diesel and Gas, whether
Compressed Natural Gas (CNG) or Liquefied Petroleum Gas (LPG)
Will my engine
have to be modified to operate in a Duel Phase Induction environment?
No. The TBG Add-Gas
system has been designed to allow for
TrueblueGREEN
Australia Pty Ltd, from our main
facility on the Gold Coast or one of our authorized installers throughout
Australia, to retrofit an Add-Gas system.
Or one can be factory fit if required. As the system is fitted
externally, the installation is ‘non invasive’ with no modifications
required for the engine. In addition, there is no alteration of any
critical engine parameters and as such will not breach engine warranties..
What research
and development has been done to date? Have any converted vehicles
traveled many kilometers since installation incident free?
The research and
development programme is based around ensuring a working solution on all
leading manufacturers of drive trains including Cummins, Perkins
Caterpillar and Volvo. Accordingly, the system has been operational on
the following test vehicles:
 | Mack (American) engine, travelling
approximately 15,000 kilometers per month |
 | Freight-liner with Detroit Series 60 for
6 months, travelling 30,000 kilometers per month |
 | Kenworth with Caterpillar engine,
travelling 40,000 kilometers per month |
 | Scania 420, travelling, on average, 8000
miles per month |
 | Nissan Navara 2.7 litre Diesel for 6
months. This vehicle has not travelled excessive kilometres as its
primary use is as an emission test vehicle |
In addition the Add-Gas
System has now been installed on a variety of Prime Movers, rigid trucks
and smaller 4WD vehicles. All are operating within normal parameters,
incident free and reporting significant fuel and emission savings.
What effect will
the TBG Add-Gas system have on the durability of my engine?
Results to date have shown
that service intervals have doubled with no reduction in oil viscosity.
The engine burns cleaner and subsequently, there is less ‘sludging’
allowing operators to review engine maintenance intervals.
What are the
expected economic benefits apart from the environment aspects?
Fuel efficiency – The
system reduces the amount of Diesel by approximately 10% - 20% while
simultaneously using about 12% (of the original Diesel volume) as a gas
replacement.
What changes can
be expected in exhaust emissions?
Particulate emissions, the
‘black plume’, virtually disappears, and there are often reductions in
Greenhouse Gases.
What does the
gas (lpg) do to the torque of the engine?
The torque curve reaches
its peak earlier resulting in fewer gear changes. A safety by-product of
this earlier torque curve is reduced driver fatigue and clutch and brake
wear. At all times, this increase in torque is maintained within OEM
specifications by the DPI Controller
Does the system
increase the engine’s horsepower beyond
manufacturer’s
specifications?
No. The TBG Add-Gas
system de-rates engines to ensure they only operate within manufacturer’s
specifications. The TBG Add-Gas System has specific alarm features
incorporated into the design that enables the System to log any instances
where an engine operates outside the manufacturer’s specifications.
What safety
factors are associated with LPG and CNG use?
The installation process is
‘non-invasive’ and does not alter the integrity of the original Diesel
engine. All tanks, valves and fittings comply with EU and ASNZ Standards
and the inherent, multiple safety ‘cut-offs’, both of a mechanical and
electronic nature, prevent any chance of LPG or CNG leakage under normal
conditions. .
In addition, TBG installs
sensors throughout the engine that monitor the operating environment.
Should any sensor detect abnormal operating conditions, the gas is shut
off and an alarm is recorded in the log for later diagnosis.
What noise
levels are expected?
Often the ‘diesel knock’ is
reduced significantly, offering quieter engine performance.
As the engine
operates as a ‘dual fuel’, what happens if the gas runs out?
 | The engine reverts back to Diesel only
mode and therefore all performance characteristics revert to normal.
|
Try It – We
Guarantee You’ll Save Money
* Savings may
vary according to engine capacity, make and age, individual usage and
environment
SAFETY AND DESIGN
FEATURES
There are two
main safety points: Installation Procedures and Operating Parameters.
Installation
 | TBG prides itself on the quality of its
System and the correct installation by licensed installers, enables its
successful operation. |
 | TBG is constantly developing franchises
as local service centres located throughout Australia and New Zealand.
|
 | Installation procedures adhere to local
regulations. |
 | All tanks and fittings comply with ASNZ
or EU standards. |
 | An Installation Procedures Manual acts
as the primary reference material for all engine installations.
|
 | Second level technical support is on
hand remotely to give advice and guidance to the operator |
 | TBG technical personnel visit the
service centres during installations to ensure quality assurance levels
are met and update our franchises on improvements and new equipment.
|
Operation
The Add-Gas DPI control
module incorporates a sophisticated, electronic control system, which
monitors the gas flow during operation. In addition, the Add-Gas DPI
module can monitor critical data channels that include.
 | Ambient air temperature – regulates flow
of gas to gas to motor |
 | Exhaust temperature – engine protection
|
 | Throttle Positioning Sensor – ensure
engine operates within manufacturer’s specifications |
 | Gas supply pressure – ensure positive
supply of gas |
 | Water temperature – engine safety
|
 | Oil pressure – engine safety |
 | Oxygen sensor – control flow of gas to
motor |
 | Service brake – gas control |
 | Compression/exhaust brake – gas control
|
 | Cruise control ( set and resume) – gas
control |
 | The controller logs ‘alarms’ when the
engine works outside defined parameters, and can be reprogrammed or
tuned remotely. |
DESIGN FEATURES
Innovative
Design
Flexibility in the Add-Gas
Dual Phase Induction (DPI) control module design simultaneously delivers:
 | Reduced emissions. |
 | Improved fuel efficiency. |
 | System adaptability. |
 | Improved drivability. |
Reduced
Emissions
The Add-Gas DPI works just
as well on new (computerized) and older (mechanical) engines whether they
be turbo charged, or naturally aspirated. The Add-Gas DPI control module
is highly effective in Diesel Vehicles that travel in both city and long
haul environments. Stationery diesel generators, water pumping plants and
mining equipment also enjoy large reductions in emission. Generally,
‘particulates’ all but disappear, and other Greenhouse Gasses are
often substantially reduced.
Improved Fuel
Efficiency
Transport operators gain
improved fuel efficiency through the Add-Gas DPI module managing the flow
of either LPG, or CNG into the intake air stream. This results in improved
combustion that requires less Diesel to produce the specified horsepower /
torque. You can expect savings of between 10/20%.
System
Adaptability
The TBG DPI control module
has the flexibility to be adapted to Diesel engines of all sizes and
applications. Future product development may introduce Methane and
Bio-Diesel, therefore negating the need for any fossil fuels.
Improved
Drivability
Vehicle drivability is
increased and more importantly driver fatigue is decreased. This is
because the driver is faced with fewer gear changes, due to the better
engine torque. The “brains” behind the system is the Add-Gas DPI control
module that constantly monitors the flow of gas. It has the ability to be
remotely monitored by a GSM modem and, also, has a full data logging
capability.