However, not all innovations are equal, and nor do they follow a constant upward trend. Instead, their evolution takes the form of an S-shaped curve that reflects their typical lifecycle from early ...

Better fuel economy and lower emissions from gasoline direct-injection engines are getting closer. Most European automakers are preparing GDI engines for introduction in the next few years, starting ...

SAE Transactions, Vol. 96, Section 4: RECIPROCATING ENGINES–SPARK IGNITION AND DIESEL (1987), pp. 614-623 (10 pages) A single-cylinder, variable–compression ratio, direct–injection diesel engine was ...

Direct injection systems, in which a high-pressure fuel pump pressurizes the fuel for injection directly into the cylinder by an injector, provide greater freedom in the injection timing and volume ...

The engine technology overcomes vapor lock, a common technical issue when liquified gases vaporize, which can interrupt fuel pump operation. The combined system fueled a standard 6.6L GDI engine ...

Isuzu Motors (Japan) announced Friday that it is partnering with Canadian company Westport Innovations to develop engines using Westport’s Compressed Natural Gas Direct Injection (CNG-DI) technology.

General Motors Europe is introducing a range of newly developed Ecotec petrol and diesel engines which meet Euro 4 emission standards, and deliver high specific power with low fuel consumption. With ...

This study investigates the formation of wall films in direct injection engines, a key factor in particulate matter generation. The results show that cold fuel adheres more to the wall creating ...

Ford of Europe will install gasoline direct-injection, spark-ignition engines into some of its smaller vehicles beginning in 2003. Called Duratec SCi - for Smart Charge injection - the engines feature ...