Search Results

In the search for fuel efficiency and emission control in modern gasoline powered automobile engine operation, the single largest problem is the knowledge of the state of the fuel involved. That is, when the fuel is totally liquid it can be handled in much the same way as a hydraulic system. In addition, when the fuel becomes a gas it will function in a manner similar to a pneumatic system. However, in a fuel system the actual state of the fuel depends on the composition of the fuel, the operating conditions, and the ambient conditions. To the authors' knowledge, the analytical model that describes the dynamic time-based performance of a fuel system has not been successfully formulated in the past due to the lack of an adequate time-based fuel state model. This paper will present a complete model of an engine fuel system along with a computer program that is capable of producing a computerized analysis of the dynamic performance for the system.

Separation efficiency, contaminant capacity and operating power consumption are the three major factors in determining the performance of any separator. For an ideal separator, all unwanted material should be removed from the process fluid. In addition, the ideal separator must hold an infinite amount of separated contaminant and consume no power. Unfortunately, such an ideal separator is impossible to attain under the current laws of physics. However, the technology presented here represents a major step closer to these objectives. This paper introduces a new concept, orbital separation, for achieving high performance gas, liquid and solid separation. Orbital separation has nearly unlimited contaminant capacity and requires only a fraction of the input power required by other separation techniques. In this paper, the general principles of filtration and separation mechanics are reviewed. The orbital separation concepts are discussed and illustrated.