Actually the study was already done... This is from Aero's patent(6679351) description. It got a 9.4% increase for a diseal engine and 14% increase on a gas engine. It's already in the patent
Various tests have been conducted using an air turbine device in accordance with the principle invention with surprising results. An air turbine device was installed on a Kenworth 525 CAT Cummins N14 diesel engine in a muffler configuration. That is, the air turbine device was installed on the exhaust in replacement of a stock muffler. The average gas mileage of the engine using the stock muffler was 5.7 MPG. After installation of an air turbine muffler in accordance with the present invention with no other modification to the engine the following results compiled in TABLE I were achieved.
TABLE I
(Test results for Kenworth 525 CAT Cummins N14 diesel engine)
MILES
TRAVELED FUEL USED (gal.) FUEL MILEAGE % GAIN
979 148 6.61 15.96
941 150 6.20 8.77
1242 208 5.97 4.74
1194 188 6.35 11.4
1134 218 6.11 7.19
1007 166 6.06 6.32
1600 257 6.22 9.12
1275 205 6.24 9.47
1063 175 6.00 5.56
1071 170 6.29 6.61
880 140 6.28 10.35
1140 180 6.30 10.53
2035 311 6.54 14.74
1980 319 6.20 8.77
1334 213 6.26 9.82
1124 175 6.40 12.28
1401 225 6.20 8.77
1958 314 6.20 8.77
Based on the foregoing test results, the average fuel mileage was 6.25 MPG with an average percent gain of 9.4 percent.
A field test of a 2000 Ford Excursion powered by a 7.3 liter turbo charged Powerstroke diesel engine. The Excursion had 32,551 miles on the odometer when the test began with the test running for approximately 8,000 miles of driving. An air turbine device in accordance with the present invention was installed as a muffler on the exhaust of the engine replacing the stock muffler. The original equipment mileage was approximately 14.54 miles per gallon based upon a 6,152 mile cross-country filed test from Boise, Id. to Denver, Colo. to Milwaukee, Wis. to Nashville, Tenn. to Birmingham, Ala. and returning to Boise, Id.
After installation of the air turbine muffler of the present invention, the Excursion was driven from Salt Lake City, Utah to Boise, Id., to Portland Oreg., to Seattle, Wash. to Bellingham, Wash., back to Seattle Wash. then to Yakima, Wash. During the trip, the excursion averaged 15.97 miles per gallon. Subsequent to the above trip, the Excursion was driven 3901 miles from Salt Lake City to Rochester, N.Y. and back. This cross-country trip yielded an average of 16.59 miles per gallon.
In addition to the increase in gas mileage, the engine runs cooler with the air turbine installed and exhibits increased horse power, especially noticeable on uphill climbs and passing situations at highway speeds. Furthermore, the sound level of the exhaust is exceptional. In fact, the sound dampening aspects result in the muffling of the typical "diesel-type" engine noise not achieved by standard mufflers.
While the apparatus of the present invention has been described with reference to certain preferred embodiments to illustrate what is believed to be the best mode of the invention, it is contemplated that upon review of the present invention, those of skill in the art will appreciate that various modifications and combinations may be made to the present embodiments without departing from the spirit and scope of the invention as recited in the claims. The claims provided herein are intended to cover such modifications and combinations and all equivalents thereof. Reference herein to specific details of the illustrated embodiments is by way of example and not by way of limitation.
AI
