DTI EMISSION TESTS

1. Introduction
   Warren Spring Laboratory, Vehicle Emissions Group, carried out a series of tests with the Broquet Fuel Catalyst fitted into the fuel system of a standard carburetted petrol engine. Warren Spring is one of the leading vehicle emission laboratories in Europe and part of the Environmental Technology Executive Agency of the Department of Trade and Industry. The tests determined what effect, if any, the Broquet Fuel Catalyst had on tailpipe emissions.

   The complete report is available for inspection and the following is a synopsis only of the DTI report's executive summary.

2. Executive Summary
   "This is a report for Broquet International Ltd who requested Warren Spring Laboratory, Vehicle Emissions Group, to carry out a series of tests to determine the effect, if any, of fitting one of their fuel catalyst devices to a standard petrol driven vehicle as a means of reducing tailpipe emissions. The vehicle used was a normally aspirated Subaru of 1.8l engine capacity. This vehicle is used every day by the Vehicle Emissions Group and has a well documented emissions history.

   The tests were carried out firstly without the device fitted to establish the base-line levels and then, after fitting the device according to the sponsors instruction, tested at 100 miles, 1000 miles, 1500 miles and 2100 miles without being removed.

   The main tests were steady state runs carried out on a chassis dynamometer set to correspond with the relevant test vehicle parameters. An E.C.E. approved constant volume sampler (CVS) was used for sampling and the analyses were carried out in the on-line mode.

   Changes in the levels of exhaust pollutants were observed at the first steady state test and were amplified as the mileage increased. The final results showed an average (reduction of) 41.3% of carbon monoxide, 31.4% of total hydrocarbons and a variable increase in the oxides of nitrogen.

   There was an improvement in fuel consumption of between 1.7 and 5.2%.

   In addition a standard emission test as used for regulation purposes was carried out on completion of the exercise and compared with a series of baseline tests carried out before the exercise started. This type of test simulates road conditions incorporating accelerations and decelerations in controlled laboratory conditions. This type of test showed more variability in the results than the steady state data as would be expected and greater improvements in fuel economy (6.99% and 10.85%).

   These results were consistent with an improvement in combustion as a consequence of fitting the Broquet device."

3. Comment
   The DTI tests provide irrefutable evidence that Broquet improves the combustion characteristics of fuel. Interestingly, from an environmental point of view, the corresponding increases in CO2 and NOX emissions resulting from improved combustion are themselves smaller than they might otherwise be because of the overall improvement in engine efficiency which is a consequence of fitting Broquet.

Fact Sheet compiled by D Lock & Associates - Tel 01903 745441 Fax 01903 741130

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