PFI System for Retrofitting Small 4-Stroke Gasoline Engines

CFD Aided Development of Gasoline Engines

Due to recent improvements on combustion modeling, three-dimensional Computational Fluid Dynamics (CFD) tools have become essential in aiding in the engine development. They allow the understanding of basic combustion phenomena and help to optimize various parameters of a pre-existing combustion system or to design a combustion chamber from scratch. Combustion systems become more and more compl...

Steady-state modeling of a turbocharger in gasoline engines

The gas flow estimation is crucial for the proper operation and monitoring of turbocharged (TC) engines with a torque structured engine control unit (ECU). This paper presents mean value models developed for modeling gas flow over the compressor, the turbine and the wastegate (WG) in a TC gasoline engine not equipped with a hot film air-mass flow meter (HFM). The turbine flow ...

A Hybrid Intelligent System For Forecasting Gasoline Price

Low Exhaust Emission System for Small Two-Stroke Cycle Engines,Mitsubishi Heavy Industries Technical Review Vol.38 No.3(2001)

Emission regulations for small utility, lawn, and garden equipment engines went into effect in 1995 in the U.S. Tier 2 standards of the California Air Resource Board (CARB) went into effect in 2000. Reducing emission of small two-stroke cycle engines is thought to be difficult due to incomplete scavenging. Two-stroke cycle engines have many features favoring handheld equipment, so we studied ne...

Combining Specialized Entailment Engines for RTE-4

The main goal of FBK-irst participation at RTE-4 was to experiment the use of combined specialized entailment engines, each addressing a specific phenomena relevant to entailment. The approach is motivated since textual entailment is due to the combination of several linguistic phenomena which interact among them in a quite complex way. We were driven by the following two considerations: (i) de...