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The ZHRO Fuel Injector System
The ZHRO Fuel Injector System Revolutionizing the Diesel Engine Diesel to natural gas engine conversion with no loss of power.
Reduced Carbon Footprint
Reduced Carbon Footprint
Reduced Operating Costs
Reduced Operating Costs
The trucking sector represents a key pillar of the US economy, employing almost 9.6 million Americans and accounting for 5% of the country’s GDP. Each year, 15.5 million trucks transport $671 Billion worth of manufactured and retail goods across the country. Although the market revenues are immense, profits are under constant strain from external influences. Fuel costs have risen a staggering 217% since 2002 and today amount to almost $216Bn for the industry at large. And while major developments have been made to improve the emissions quality from diesel engines, the trucking sector is still one of the largest contributors to greenhouse gas emissions in America.
Why Convert? Eroding margins and increasingly strict EPA emissions requirements will require trucking companies to adapt swiftly. In order to comply with EPA Tier 4 standards, owners will either have to replace their trucks or opt for expensive, invasive retrofits. ZHRO’s affordable retrofit option allows an owner to salvage their existing equipment while still meeting emissions requirements.
Clean air act by 2015
Clean Air Act by 2015 The Clean Air Act amendments passed by Congress required that the EPA develop and implement regulations for the responsible management of ozone-depleting substances and greenhouse gases in the United States. As part of the Clean Air Act, all diesel engines were required to meet EPA Tier 4 requirements by the year 2015.
What does this mean for diesel engines
What does this mean for Diesel Engines? Meeting Tier 4 requirements represents an unprecedented challenge for the diesel engine industry. The industry is left with few cost effective options for compliance. Current options are to either replace the existing equipment with new or choose among the few expensive retrofit options.

TIER 4 REQUIRES 96% NOX REDUCTION | 93% PM REDUCTION
Good for the Planet
Good for the Planet By converting to the use of natural gas in a diesel engine, we can significantly reduce greenhouse gas emissions while meeting the strict Tier 4 regulations.
Switching to Natural Gas
Switching to Natural Gas The ZHRO™ Fuel Injector System leverages the high performance characteristics of a diesel engine while utilizing natural gas as a cleaner, more abundant fuel source for combustion. This unique technology offers a low cost alternative to engine replacement.
Equivalent Diesel Performance The ZHRO™ Fuel Injector System Performance Advantage

The ZHRO™ Fuel Injector System provides an unprecedented transformation in natural gas engine technology. All of the legendary performance and reliability of the diesel engine is retained, while the additional environmental and cost advantages of a natural gas machine are added to the system. Conventional retrofit kits convert a high performing diesel engine into a lower performing gas engine. The ZHRO™ Fuel Injector System allows operation of a high performance diesel engine at its utmost potential while using natural gas, an unprecedented shift in engine conversion technology.
Natural Gas vs Diesel Performance The ZHRO™ system mimics the performance parameters of the existing diesel engine. Traditionally converting to natural gas has involved compromising on key engine performance, the ZHRO™ Injector System eliminates this compromise.
Start-up time
Start-up time Diesel generators have faster start times compared to traditional natural gas engines. Since the ZHRO™ system is designed to meet the exact performance standards of its diesel counterpart, startup times are not a limiting factor.
Fuel Efficiency
Fuel Efficiency Diesel engines have Break Thermal Efficiencies (BTE) of 40% or greater, vs. natural gas engines in the 36% range. The ZHRO™ system pushes beyond the efficiencies of current natural gas technology, removing the stigma of lower fuel efficiency.
Power
Power Natural gas engines produces less power than diesel for comparable physical generator size due to lower thermal efficiency and lower cylinder pressures. The ZHRO™ system creates the correct cylinder pressures needed to support the power of an existing diesel engine.
Transient Response
Transient Response Standard natural gas engines have difficulty responding quickly to load transients, however the flexibility of the ZHRO™ Injector System’s unique combustion strategy eliminates this limitation.
Associated Gas Pick the fuel that’s right for your application. With the ZHRO™ Fuel Injector System's modified combustion strategy, users can decide what fuel the engine will use based on price, availability and application requirements.
Start-up time Diesel generators have faster start times compared to traditional natural gas engines. Since the ZHRO™ system is designed to meet the exact performance standards of its diesel counterpart, startup times are not a limiting factor.
Fuel Efficiency Diesel engines have Break Thermal Efficiencies (BTE) of 40% or greater, vs. natural gas engines in the 36% range. The ZHRO™ system pushes beyond the efficiencies of current natural gas technology, removing the stigma of lower fuel efficiency.
Power Natural gas engines produces less power than diesel for comparable physical generator size due to lower thermal efficiency and lower cylinder pressures. The ZHRO™ system creates the correct cylinder pressures needed to support the power of an existing diesel engine.
What’s in The Kit? Three simple components - the fuel injector, fuel delivery system, and electronic controls are all that is required to transform an engine. No invasive engine remanufacture required.
The ZHRO ™ Injector System is made up of three simple components - the fuel injector, fuel delivery system, and electronic controls - all of which function seamlessly to transform an existing diesel engine.
Fuel Injector
Fuel Injector
Diesel generators have faster start times compared to traditional natural gas engines. Since the ZHRO™ system is designed to meet the exact performance standards of its diesel counterpart, startup times are not a limiting factor.
ECU
ECU
Diesel engines have Break Thermal Efficiencies (BTE) of 40% or greater, vs. natural gas engines in the 36% range. The ZHRO™ system pushes beyond the efficiencies of current natural gas technology, removing the stigma of lower fuel efficiency.
Fuel System
Fuel System
Natural gas engines produces less power than diesel for comparable physical generator size due to lower thermal efficiency and lower cylinder pressures. The ZHRO™ system creates the correct cylinder pressures needed to support the power of an existing diesel engine.
Opportunity The natural gas promise: A cleaner, cheaper, more abundant fuel source to power a brighter future. Natural gas has long been recognized for its unique characteristics as a source of energy. Now that new innovations in drilling technology have unlocked massive recoverable reserves worldwide, its potential to offset many of the risks associated with existing fossil fuels has become more significant than ever.
The US reliance on foreign oil is costly and potentially destabilizing. The US reliance on oil is costly and destabilizing. Dwindling global reserves and increasing environmental regulation means that continuing this dependency could have wide reaching economic and political impacts.
18 MIllion Barrels of oil used per day in the US
18 Million Barrels of Oil
The United States is the world’s largest consumer of petroleum products at over 18 Million Barrels per day - close to double China's consumption and more than all of the European Union and India combined.
50% of US oil is shipped from foreign sources
50% of US oil
Over 50% of the crude oil consumed in the United States comes from foreign sources and 29% from the Persian Gulf. At 2012 average oil prices this amounts to over $1 Bn dollars per day paid to import a single fuel source.
Natural Gas Transitioning to a cleaner future: The “natural gas revolution” holds the potential to dramatically revitalize America’s economic, political and industrial prosperity. Natural gas possesses remarkable qualities. Among the fossil fuels, it has the lowest carbon intensity, emitting less CO2 per unit of energy generated than other fossil fuels. It burns cleanly and efficiently, with very few non-carbon emissions. Unlike oil, natural gas generally requires limited processing to prepare it for end use.

The US currently holds the 3rd largest supply of recoverable natural gas in the world, with an approximate 200 year supply
Energy Consumption
Energy Consumption
In the past 64 years, the US energy consumption has tripled. With the current rate of world population growth, it’s expected that by 2050, the planet’s energy requirements will grow by a staggering 200%.
Less C02 Emissions
Less CO2 Emissions
Among the available fossil fuels, Natural Gas has the lowest carbon intensity, emitting less CO2 per unit of energy generated than other fossil fuels. The combustion of Natural Gas emits almost 30% less CO2 than oil and just under 50% less than coal.