Mazda Develops Highly Efficient "SKYACTIV-G 1.3" Direct-Injection Gasoline Engine
HIROSHIMA, Japan—Mazda Motor Corporation has announced that the "SKYACTIV-G 1.3" direct-injection 1.3-liter gasoline engine will be the first of its next-generation SKYACTIV technologies to be introduced to the market. Mazda will unveil the engine at the Automotive Engineering Exposition that will be held from May 18 through 20, 2011, at the Pacifico Yokohama convention center near Tokyo, Japan.
The breakthrough SKYACTIV-G 1.3 achieves a record high compression ratio (for a regular gasoline mass production automobile engine) of 14.0:1 and exhibits high efficiency, especially under high load at low rpm. In order to avoid knocking – an unavoidable issue with conventional high-compression engines – the SKYACTIV-G 1.3 features a number of new technologies, such as piston cavities that are specially designed to support ideal combustion, and multi-hole injectors that enable precise fuel injection control.
Mazda plans to introduce the SKYACTIV-G 1.3 to the Japanese market in the facelifted Mazda Demio (known overseas as the Mazda2) during the first half of 2011. It will be the first ever 1.3-liter direct-injection gasoline engine to be equipped in a compact car manufactured in Japan. Combined with Mazda's unique idling stop system, i-stop, and a continuously variable transmission (CVT), SKYACTIV-G 1.3 will achieve fuel economy of 30km/L under Japan's 10-15 mode test cycle.
Mazda has applied for over 130 patents in relation to the engine (as of the end of February, 2011).
SKYACTIV TECHNOLOGY is the umbrella term for Mazda's range of next-generation technologies – including gasoline and diesel engines, transmissions, and a new body and chassis – that significantly improve vehicle driving dynamics as well as environmental and safety performance. The SKYACTIV-G 1.3 that is equipped in the facelifted Mazda Demio adopts all of Mazda's SKYACTIV engine technologies except for the exhaust manifold. It also features other new components that are exclusive to the Demio, such as a cooled EGR* system.
Under its Sustainable Zoom-Zoom vision, Mazda aims to deliver outstanding driving pleasure as well as environmental and safety performance, and is committed to increasing its global fleet fuel economy by 30 percent by 2015, compared with the 2008 level.
* EGR: Exhaust Gas Recirculation
Main features of the SKYACTIV-G 1.3 engine
Major specifications of the SKYACTIV-G 1.3
Inline four-cylinder 1.3-liter direct-injection engine (with i-stop)