ECL was formed in 2014 to exploit the novel GW compressor with its very advantageous design features. These will lead to significantly improved energy efficiency in all positive displacement compressors and vacuum pumps. A full description was given in the Paper presented at the Sept 2017 London Intl Conference.
David Garside has been a lifelong specialist in the design of the Wankel engine, and this experience lead to the evolvement of this new compressor type. He is the creator of the very-high-performance versions of the air-cooled-rotor (ACR) type of the engine. These have proved to be particularly advantageous for powering Unmanned Air Vehicles (UAVs) because of their light weight and low level of vibration.
When compared to the oil-cooled rotor (OCR) version of the Wankel, which have been universally used in automotive applications, the ACR possesses several key advantages, which include:
- Many fewer components,
- A more compact combustion chamber with reduced surface /volume ratio,
- Much lower mechanical friction losses, and hence lower fuel consumption.
A sister Company, Compound Rotary Engines Ltd, was formed in 2009 to exploit two further patents-of-improvement to the Wankel engine devised by David Garside. These patents are now exclusively Licenced to a UK engineering company. One objective of that company is to develop an ultra-lightweight and quiet Range Extender engine for use in electric vehicles. It has always been clear that the Wankel rotary is the best engine type for this application
One version of this engine will be designed to burn Hydrogen fuel. It has been stated, and is now beginning to be accepted that:
“ The Best Engine for Burning Hydrogen is the Wankel; and the Best Fuel for the Wankel is Hydrogen”
A 50% of stoichometric fuel-air mixture will be provided, such that all NOx emissions, as well as HC and CO2 will be zero. The engine will be optimised for a single speed and single load such that, when combined with the easy-mixing gaseous fuel, the high level of excess air, and the low mechanical friction of the ACR type engine, will result in a very high thermal efficiency of approaching 46 %.