Older Diesel Engine Emission Control Retrofits Go DIGITAL, Virtually Eliminating the Need for Expensive Exhaust After-Treatment
If you have ever been stuck driving behind a diesel truck or bus belching out black clouds of emissions and wanted to know why this is happening, it's simple, these older diesel engines have poor combustion efficiencies and no emission control systems. One small California Company, Extengine Systems, has hit on a novel approach to cleaning up these older diesels, Go DIGITAL.
Los Angeles, CA, May 24, 2008 --(PR.com)-- Diesel Engine Emission Control Retrofit Systems Go DIGITAL.
If you have ever been stuck driving behind a diesel truck or bus belching out black clouds of emissions and wanted to know why this is happening, it's simple, these older diesel engines have poor combustion efficiencies and no emission control systems. One small California engineering firm, Extengine Systems, Inc. has hit on a novel approach to cleaning up these older diesels, Go DIGITAL.
Extengine Systems better known for developing the ultimate retrofit systems for reducing diesel exhaust emissions is now transcending conventional approaches to cleaning up older diesels by integrating breakthrough digital diesel components on older diesels to make them run cleaner than new. The new DRS™ (Digital Retrofit System) is potentially the biggest advancement in diesel engine efficiency in a century.
In 2005 Extengine had introduced the first CARB verified SCR system to reduce NOx (oxides of nitrogen) on port handling equipment and recently launched its second generation “universal” diesel retrofit system, the ADEC II. Now, Extengine is developing a new digital retrofit kit with a leading engineering firm to virtually eliminate harmful exhaust emissions even without the need for conventional after-treatment retrofits devices.
Here is how this innovative diesel retrofit system works; the digital retrofit engine platform is an upper end diesel engine modification kit for most existing on or off road diesel engines. The system integrates new components and engine cycles that when combined is anticipated to move diesel engine thermal efficiency from around 42 percent up to as much as 60 percent, with near-zero emissions, little or no after treatment, and will adjust to using most fuels, including natural gas or even straight unrefined seed oils.
By replacing the existing engine’s injectors and eliminating the camshaft with a an electronic valve and high-pressure fuel injection system the unique cycle retains exhaust in the cylinder at the bottom of the expansion stroke while fuel is injected into this hot exhaust as the piston starts the compression stroke. Key to achieving lower emissions from an older diesel is that now the fuel evaporates in the hot gas, truly atomizing it, unlike high-pressure fuel even at 2,200 bar. It does not burn immediately, because the gas is inert. However, combustion is initiated as the piston rises on the compression stroke by opening the inlet valves to a compressed air charge. As the piston heads down the expansion stroke, more air is mixed with the charge in the cylinder to maintain combustion and in-cylinder pressure. This gets more work out of the fuel charge, with far lower flame temperatures and injection pressures. And because the fuel is vaporized, there’s no particulate matter like that formed when burning droplets of diesel fuel.
By varying valve timing and fuel delivery cylinders can be power-producing or air compressing or just wind milling. Pairing the right elements to an adaptive electronically controlled engine cycle and fuel or fuel mixes with compressed-air, hydraulic or electric hybrids so the power unit can switch back and forth between various engine cycles, diesel or HCCI cycles — or any other exotic cycle that can be created for the new or old diesel piston engine.
Extengine estimates to have a working prototype in as little as 18 months, depending on how soon it can raise the approximately $3M to build the first commercial prototype. Although all the major system components are ready for use and fully tested, a complete integrated retrofit kit has yet to be built. Extengine sees this novel approach as the future to all new and old engine designs, "imagine an engine that can run cleaner with better fuel economy on any fuel any time, this is where every engine manufacturer will be in 20 years," says Phil Roberts, the founder of Extengine Systems. "We hope that this new technology is the start of the California cleantech revolution over the next three years and can provide good employment opportunities for thousands of Americans located in Southern California."
For further information contact Richard Carlson, President, Extengine Systems at 714-774-3569 or to his direct email rcarlson@extengine.com
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If you have ever been stuck driving behind a diesel truck or bus belching out black clouds of emissions and wanted to know why this is happening, it's simple, these older diesel engines have poor combustion efficiencies and no emission control systems. One small California engineering firm, Extengine Systems, Inc. has hit on a novel approach to cleaning up these older diesels, Go DIGITAL.
Extengine Systems better known for developing the ultimate retrofit systems for reducing diesel exhaust emissions is now transcending conventional approaches to cleaning up older diesels by integrating breakthrough digital diesel components on older diesels to make them run cleaner than new. The new DRS™ (Digital Retrofit System) is potentially the biggest advancement in diesel engine efficiency in a century.
In 2005 Extengine had introduced the first CARB verified SCR system to reduce NOx (oxides of nitrogen) on port handling equipment and recently launched its second generation “universal” diesel retrofit system, the ADEC II. Now, Extengine is developing a new digital retrofit kit with a leading engineering firm to virtually eliminate harmful exhaust emissions even without the need for conventional after-treatment retrofits devices.
Here is how this innovative diesel retrofit system works; the digital retrofit engine platform is an upper end diesel engine modification kit for most existing on or off road diesel engines. The system integrates new components and engine cycles that when combined is anticipated to move diesel engine thermal efficiency from around 42 percent up to as much as 60 percent, with near-zero emissions, little or no after treatment, and will adjust to using most fuels, including natural gas or even straight unrefined seed oils.
By replacing the existing engine’s injectors and eliminating the camshaft with a an electronic valve and high-pressure fuel injection system the unique cycle retains exhaust in the cylinder at the bottom of the expansion stroke while fuel is injected into this hot exhaust as the piston starts the compression stroke. Key to achieving lower emissions from an older diesel is that now the fuel evaporates in the hot gas, truly atomizing it, unlike high-pressure fuel even at 2,200 bar. It does not burn immediately, because the gas is inert. However, combustion is initiated as the piston rises on the compression stroke by opening the inlet valves to a compressed air charge. As the piston heads down the expansion stroke, more air is mixed with the charge in the cylinder to maintain combustion and in-cylinder pressure. This gets more work out of the fuel charge, with far lower flame temperatures and injection pressures. And because the fuel is vaporized, there’s no particulate matter like that formed when burning droplets of diesel fuel.
By varying valve timing and fuel delivery cylinders can be power-producing or air compressing or just wind milling. Pairing the right elements to an adaptive electronically controlled engine cycle and fuel or fuel mixes with compressed-air, hydraulic or electric hybrids so the power unit can switch back and forth between various engine cycles, diesel or HCCI cycles — or any other exotic cycle that can be created for the new or old diesel piston engine.
Extengine estimates to have a working prototype in as little as 18 months, depending on how soon it can raise the approximately $3M to build the first commercial prototype. Although all the major system components are ready for use and fully tested, a complete integrated retrofit kit has yet to be built. Extengine sees this novel approach as the future to all new and old engine designs, "imagine an engine that can run cleaner with better fuel economy on any fuel any time, this is where every engine manufacturer will be in 20 years," says Phil Roberts, the founder of Extengine Systems. "We hope that this new technology is the start of the California cleantech revolution over the next three years and can provide good employment opportunities for thousands of Americans located in Southern California."
For further information contact Richard Carlson, President, Extengine Systems at 714-774-3569 or to his direct email rcarlson@extengine.com
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Contact
Extengine Systems, Inc
Richard Carlson
714-774-3569
www.extengine.com
Phillip Roberts
Richard Carlson
714-774-3569
www.extengine.com
Phillip Roberts
Contact
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