Project: Development of high compression CNG/LPG engine

_x000D_BACKGROUND_x000D_Most car manufacturers are switching over to engines with a direct injection strategy. Direct Injection means that the fuel is injected under high pressure directly into the cylinder instead of premixing it with air in separate intake ports. That allows for controlling combustion and emissions more precisely. But it demands more advanced engine management technologies. By using direct injection and (mostly) "downsizing" the engines, both fuel consumption and emissions will be reduced. Port injected engines are replaced by smaller engines with turbo / compressor whilst COtaining power. But also large 6 and 8 cylinder engine are changing to direct injection because of fuel consumption reduction._x000D__x000D_Direct injection of the fuel greatly reduces the emissions and simultaneously improves the fuel economy of the vehicle. The higher torque in modern direct injection gasoline engines is the result of the synergistic effect of direct injection, charging and variable valve timing. In combination, this allows for great flexibility in the engine tuning. As a result, there is a superior cylinder charge with reduced tendency to knock. In the future, charged direct injection engines will be able to produce specific torque values of 175-200 Newton meters per litre piston displacement with specific outputs of 100 kW per litre piston displacement. The new direct injection gasoline engines will be characteristic for their high torque at low speeds. In comparison to charged port fuel injection engines, torque increases at lower speeds of up to 50% are possible._x000D__x000D_With the increasing application and popularity of direct injection systems on petrol powered vehicles it has become inevitable that several changes have to be made to the existing LPG technology and to develop and integrate new solutions for both hardware and software so that continued smooth transition between the two fuels is assured. The use of alternative fuels on direct injection engines could significantly enhance the direct injection technology benefits in terms of fuel efficiency and lower emissions especially in regards to CO2 and particles reductions. By using alternative fuels, the emissions will be reduced even further without loss of power and drivability._x000D__x000D_PROJECT CONSORTIUM_x000D_The project will be executed by two different participants: Prins Autogassystemen BV (Prins) from the Netherlands and Mazda Motor Europe GmbH (Mazda) from Germany. Prins is an SME with a lot of knowledge about the direct injection technology for alternative fuels. _x000D_In the last few years, Prins designed the Direct LiquiMax (DLM) system for engines with a direct fuel injection system. This system uses the high pressure fuel pump and fuel injectors of the petrol system to inject the liquid LPG under high pressure into the cylinder. The system is equivalent to the original petrol injection technology and makes optimum use of the electronics and components already present. The DLM system is suitable for the aftermarket._x000D_Mazda is a large company which developed ‘Skyactive’ direct injection engines. These engines are different than other direct injection engines in the market, because of an extreme high compression ratio (14:1) and not using downsizing. _x000D__x000D_GOAL_x000D_The goal of this project is to develop and test a high compression engine for use of alternative fuels. Starting from the DLM system of Prins and the Skyactive engine of Mazda, a total new concept will be developed. The drivability of this new high compression engine needs to be equal to petrol (or better) under all conditions. The targets to achieve are the future Euro 6 emission limits but on top of these limits with better results for CO2 (10% less than petrol) and particles (70% less than petrol)._x000D_

Acronym HC CNG/LPG engine (Reference Number: 8485)
Duration 01/08/2013 - 30/06/2016
Project Topic During the project SME Prins Autogassystemen and OEM Mazda will develop a high compression engine for use of alternative fuels. Besides the engine, all components for the direct injection system for CNG/LPG will be developed and tested.
Network Eurostars
Call Eurostars Cut-Off 10

Project partner

Number Name Role Country
2 Prins Autogassystemen BV Coordinator Netherlands
2 Mazda Motor Europe GmbH Partner Germany