Now accepting orders and building modular 1-Megawatt units

for worldwide distribution





-Click on the images below to see videos of the Engine running in various applications-





After prototype testing the first model above in various applications, the final design of the new engine below was chosen.  This optimized design allows us to take an engine off an assembly line and use it in any application the customer desires without any modifications.

Click on the image below to see the compressed air powered chassis dyno test performed by the University of Windsor.  The Vengeance Power Engine runs a 1972 Corvette chassis driving the output shaft directly with a 5:1 overdrive gear.  The Engine put out 530 ft-lbs torque at only 150 rpm, running on only 130 psi compressed air flowing at only 67 CFM!  This test proves the tremendous capability of this little powerhouse!

Click on the image below to see the Vengeance Power Engine propelling a '72 Corvette Chassis  on 90 psi shop air flowing at only 23 CFM.


Making Preparations for Dyno Testing



1,000 feet of high grade alloy stainless steel coil similar to material used in Nuclear power plants to be used to generate high pressure steam from exhaust heat expelled by a military battle tank for additional power.  The same setup will be used for future steam car applications.  Shown above are the Vengeance expander, the steam generator coil and the condenser.  These are the three main components of the Rankine Cycle system.

Our technology has been awarded several worldwide patents and is ready for licensing.

U.S.A.                 Patent # 8347848
Canada               Patent # 2631001
China                  Patent # ZL200680051503.5
Mexico                Patent # 324520 
New Zealand      Patent # 568316
Australia             Patent # 2006318473
Other patents being granted, more patents pending.

The rotary vane pump was invented in 1874 by Charles C. Barnes of Sackville, New Brunswick, Canada. Many attempts have been made throughout history to turn this design concept into a successful engine for motive power use but without success. Our patented modifications have transformed this simple design into a major contender for all other competing technologies for the use in anything that requires spinning an output shaft with unsurpassed torque! As seen in the video above, 100 PSI of shop air registered a whopping 760 lbs-ft of torque at stall. This test was performed on our larger prototype which was originally designed to test only internal combustion.  Our newer, more compact sized model which is specifically designed as an expander will deliver 880 lbs-ft of torque from only 100 psi pressure.  More power in a smaller package.

Now apply the explosive force of 1000 PSI of expanding gasses from internal combustion, steam from external combustion or any other pressurized gas such as compressed air and take a few moments to imagine what you can do with 8800 lbs-ft of torque! Don’t worry about damaging anything inside the engine with these forces because the expanding fluid whether it is steam, compressed air or expanding hot gasses from combustion are pushing against a thick high strength alloy steel vane supported by high strength ceramic rollers to take the force. So go ahead, give us a call and see what this amazing torque can do for you!


Below is an example of how the the Vengeance Power Engine will be utilized in the Organic Rankine Cycle which is the most attractive and untapped market for using low grade waste heat to produce additional power for any application. Just imagine turning 10% to 20% of your low grade waste heat into useable power - without the need for a chilling compressor. 




As the need for energy grows without adding to the pollution of the environment, the Organic Rankine Cycle using low quality wasted heat from industry for power generation has been chosen to be the most ideal process.  The Organic Rankine Cycle uses fluids with low boiling points to vaporize from low quality wasted heat creating fluid pressure that spins the rotor of the engine, which is coupled to a generator to produce electricity. 

The Vengeance Power Engine was initially designed as a sealed turbine internal combustion engine to compete with the existing piston engine.  It has been tested in harsh conditions where high heat and high pressures are experienced.  These tests have demonstrated that the engine can survive these harsh conditions such as in internal combustion engines.

Since the Organic Rankine Cycle uses lower pressures and lower heat values, the Vengeance Power Engine’s reliability is greatly increased.  Due to its tremendous torque output at low RPM, it will outlast and outperform any other positive displacement expander on the market today.  The expansion ratio can easily be tailored to a specific application for optimized efficiency.  Because it is a positive displacement engine, it is more efficient than a standard turbine of its size.  Large turbines become less efficient as they are reduced in size.  Also, turbines need to run at very high speeds to compensate for blow-by.  Due to these high speeds and the fragile nature of the blades, the condition of the working fluid such as pressurized steam or vapor must be very specific. For example, any moisture present in the high speed steam or pressurized vapor will cause etching and erosion of the blades leading to imbalance and inevitable failure.  Since the vanes in the Vengeance Power Engine are made of a thick, hard and durable alloy, they can withstand high pressures from any working fluid condition and will resist etching and erosion.  The Vengeance Power Engine’s simplicity and mostly 2D design makes it very inexpensive to mass-produce and less expensive to own. 

All other positive displacement expanders are designed with specific tolerances according to their application.  If the parameters change during operation, the expander would not operate as it was designed.  For example,  a temperature drop would cause the internal clearances to enlarge thus allowing leakage or blow-by resulting in poor efficiency.  If the temperature was to rise during operation, the internal clearances would become tight enough to cause the expander to seize.  This is called poor off-design performance.  The Vengeance Power Engine is not a poor off-design performer since it is designed to operate at any temperature and will not suffer if the working fluid condition changes. 

It is the only engine on the market today where one engine can be removed off of an assembly line and used in over five different applications without any modifications.  This is why it is the most dynamic engine in the world. 


The Vengeance Power Engine is a positive displacement sealed turbine and a true rotary engine.  It is a true rotary because it does not use a crankshaft to transfer reciprocating motion into rotary motion, which reduces the efficiency of the engine.  The forces from the expanding gasses from combustion, steam or compressed air are transferred directly into rotary motion simplifying the process and obtaining the most mechanical energy from the working gasses.

Since it is a positive displacement engine, it can easily be throttled for various RPMs.  The engine provides maximum torque at start-up.  It can also idle and run at a very low RPM without stalling like a turbine engine.  It does not require high velocities to compensate for blow-by past the vane tips like a turbine.  The exhaust temperatures are much cooler since more of the thermal energy from combustion is transferred into mechanical energy to turn the output shaft.  The simple design allows the engine to be scaled to any size for any power requirement.

The engine uses many off-the-shelf components that have gone through rigorous testing under very harsh conditions before implementation.  Since the engine can run at lower RPMs with optimal power delivery, reliability is greatly increased.

The same engine can be used for various cycles including: Otto Cycle, Brayton Cycle, Rankine Cycle and Organic Rankine Cycle.

As an internal combustion engine, it can burn conventional fuels such as: gasoline, diesel, natural gas, propane and alternative fuels such as bio-diesel, ethanol, methanol, syngas, hydrogen, ammonia, dimethyl ether, etc..

The design also makes this unique engine capable of combining the Brayton Cycle and Rankine cycle to increase the efficiency of the engine where a fluid is boiled from the heat of combustion and then the pressurized steam (gas) can be introduced at the opposite side of the rotor to double the torque output of the engine.

The robust parts inside the engine make it possible to use saturated steam without causing any damage such as etching of the vanes in a turbine engine.

Below are some important quotes and links highlighting the benefits of Vane and Rotor type Engines/Expanders, particularly in Compressed Air Energy Storage (CAES) systems where our Engine outperforms any other expander due to its custom designed expansion ratio:

“Several positive displacement expanders such as the reciprocating, Wankel and rotary vane type have been suggested.  Turbines also have been used extensively in Rankine cycle systems.  However, the efficiency of turbines is diminished at the low power levels, particularly at part load, giving the positive displacement expanders a potential advantage in size and efficiency.  Rotary vane expanders do not vibrate as much as reciprocating expanders and due to their simplicity, they have possible weight advantages.  Ideally, the rotary vane expander operates with a high efficiency.”

“study shows that easy breathing in vane expanders is  readily achieved  and that  a vane expander operating in the absence of  heat transfer,  leakage and  friction can obtain a high expansion efficiency.”

(We have solved these 3 main issues by using the correct materials to minimize thermal heat loss, applying proven off-the-shelf seals to minimize leakage and off-the-shelf strong, robust rollers to minimize friction, making our engine the best option for this application)

(The Pennsylvania State University Institute for Science and Engineering Applied Research Laboratory study for the U.S. Navy)

“Technology developers are shuttling between caves and mountaintops to build a market for utilities set to attract $25 billion in annual investment within a decade.”

“The $260 billion renewables industry needs storage so power companies can absorb surges from solar and wind farms”

“annual investment in storage is currently about $2.6 billion, based on data from Pike Research. That’s set to grow to $9.2 billion in 2015 and then to $25 billion by 2021.”

“Energy storage solutions will catalyze growth in the market for renewable energy by enabling its use in greater volumes and in new applications”

“Clean-energy investment rose 5 percent to a record $260 billion in 2011”

“Compressed-air energy storage is the most suitable for the biggest plants, Harrison said. Batteries, such as those being developed by GE and Siemens, aren’t yet capable of holding large amounts of power cheaply”
Reference: (Business Week)

“The potential market is huge: according to Pike Research, a market-research firm, $122 billion will be invested in energy-storage projects between 2011 and 2021. It predicts that the bulk of this spending will go towards new forms of CAES.” (Compressed Air Energy Storage)
Reference:  (The Economist article)

“Designed and developed for Garvey’s project by Canadian firm Thin Red Line Aerospace, the bags use a butyl rubber bladder and a polyester-reinforced fabric for the outer surface. Special coated steel or aramid straps provide the main structural strength. At depths of around 600m, there will be enough pressure in one 20m-diameter bag to store around 70MW hours of energy. That’s around the same as 14 hours of energy generation from the largest offshore turbines currently in operation.”

“Without that kind of storage, the jobs that the government hopes will emerge around a wind-turbine engineering industry will be redundant again by 2021 as the grid struggles to remain stable”
Reference: (The Engineer Newsletter in UK)

“According to James Heid, Dresser-Rand's Vice President of Business Solutions, "Dresser-Rand continues to believe that, based on the proliferation of renewable energy in the form of solar and wind power, there will be a strong market for energy storage in the form of CAES in the near and longer-term.”  (CAES - Compressed Air Energy System)
Reference:   (Market Watch Wall Street Journal)

“The need for storage is increasing as governments mandate the use of more renewable energy.”

“Gas turbines can only generate electricity from a narrow range of air pressures. The pistons can operate at a larger range—and because air can be compressed more, the system can store more energy. What's more, the pistons operate well after the pressure in the tank has fallen too low to drive a turbine.”

“system can deliver power for less than natural gas plants used to supply electricity at peak demand.”

“Massachusetts-based General Compression, recently raised over $50 million for its system, which uses a wind turbine to power the compressor and air expansion unit.”
Reference: (Technology Review Published by MIT)

Click on the following link to see recent Macleans magazine article highlighting Green Power technologies.  These new green technologies are prime candidates for the Vengeance Power Engine.




© 2009 Vengeance Power Inc.