Towards an optimized model of vegetable oil rolling tractor
At the end of 2005, the John Deere company had started a project to test the feasibility of adapting a tractor to the use of vegetable oil as a fuel, while maintaining the demanding quality standards of the company. The results obtained meanwhile are promising. However, further studies are needed before deciding whether the manufacturer John Deere is going into factory production and placing on the market a vegetable oil tractor.
From spring 2009 to mid-2011, private customers will test the new tractor in practice in Germany, Austria, France and Poland, as part of the European research project "2nd VegOil". The results of these tests and the development of the market in the future will determine the opportunity to mass-produce a John Deere tractor capable of running on vegetable oil. Same Deutz Fahr and Fendt companies already produce tractors that run on vegetable oil. However, the John Deere model would bring a novelty: a system based on a single tank.
Until now, the use of vegetable oil as a fuel presupposed the completion of a development of the vehicle by a garage, for about 1.000 euros. This, however, resulted in the loss of the warranty against possible engine damage. The growing importance of vegetable oil as fuel, particularly in agriculture, has prompted the industry to think about new models of farm vehicles.
Adapted John Deere models are machines equipped with 6 engine cylinders. A vegetable oil tractor with a single-tank system does not require the addition of an additional tank and switching between diesel and oil systems. The microelectronics software, the fuel pump and the entire circuit have been optimized to meet the particular requirements of the use of rapeseed oil.
In bench-top and field engine studies, it was found that safe operation and compliance with emission limits are only guaranteed if the fuel used contains almost no calcium, magnesium and phosphorus. In addition, the addition of a specific additive is necessary. A secondary result of the project is that the composition prescribed by DIN V 51605 on rapeseed oil is not sufficient to ensure clean combustion. It appears that components such as calcium, phosphorus and magnesium need to be taken into account more.
The project was carried out in cooperation with the United Workshops for Vegetable Oil Based Technologies and the Chair of Piston and Combustion Engines at the University of Rostock. It was supported by the Federal Ministry of Food, Agriculture and Consumer Protection (BMELV), via the Specialized Agency for Renewable Raw Materials (FNR), which manages the "raw materials" support program. renewable "on behalf of the ministry.
Source: http://www.bulletins-electroniques.com/ ... /56851.htm
ps: and the water doping + hvb to limit the soot ... They could think about it anyway these dear engineers ...