Two-stroke engines used to be ubiquitous in dirt bike racing, thanks to their lightweight construction and horsepower. Packed in a dirt bike frame, they make a motorcycle playful in the corners and ...

Automobile engines have undergone tons of changes over the years, primarily to make them more efficient. For the most part though, engine changes result from a string of iterative improvements on ...

Two-stroke engines were phased out by tough pollution laws and fuel economy targets, but they could be making a comeback with KTM, Honda and boutique builders. KTM and Honda have both registered ...

This paper describes the fundamental principles of operation of a mixture injection system now called the Compression Wave Injection system (CWI). The system has been initially designed for use in ...

There are currently two distinct schools of thought regarding the single problem of how a fuel injector should be designed for an automotive engine. The oldest system and one that was originally ...

The basic difference between direct injection (DI) and the port-fuel injection (PFI) systems we've become familiar with since the mid-1980s is that PFI sprays fuel into the intake manifold (behind ...

SAE Transactions, Vol. 101, Section 3: JOURNAL OF ENGINES (1992), pp. 1560-1570 (11 pages) The recent interest in two-stroke engines for automotive use has produced powerplants of such divergence that ...

QUESTION: I was having a conversation about cars with my 14-year-old son, and the topic of fuel injection came up. He wanted to know how it works, and I began to tell him but then realized I was ...

Turbo Fuel Stratified Injection technology for gasoline engines was once a remarkable innovation that has since become quite commonplace. Traditional fuel-injected engines that don't use direct ...