| 20110232604 | DEVICE FOR ENHANCING FUEL EFFICIENCY AND REDUCING EMISSIONS OF INTERNAL COMBUSTION ENGINES - An air/fuel flow structure for enhancing the fuel efficiency of an internal combustion engine includes a generally conical-shaped flow path useable in the engine. One or more tab and one or more notch are formed in the conical path to alter one or more characteristics, such as pressure and velocity, of the gas flow. The apparatus may be positioned in the air intake system. Alternatively, the apparatus may be positioned in the exhaust system. | 09-29-2011 |
