Alleman Hall Creasman & Tuttle LLP
Engine system
An engine system includes an engine, a main combustion chamber formed by a cylinder head and a piston, an auxiliary chamber formed with a communicating hole communicating with the main combustion chamber, an injector configured to inject fuel into the main combustion chamber, an ignition plug provided to the auxiliary chamber and configured to ignite a mixture gas inside the auxiliary chamber, an accelerator opening sensor, and a control device. The control device controls the injector so that an air-fuel ratio of the mixture gas inside the auxiliary chamber becomes a first air-fuel ratio when an engine load range is a first range, and the air-fuel ratio of the mixture gas inside the auxiliary chamber becomes a second air-fuel ratio leaner than the first air-fuel ratio when the engine load range is a second range where the engine load is higher than in the first range.
Mazda Motor Corporation
F F H F F F F F F F Y Y F F F F
F02D F02D H01T F02P F02B F02D F02B F02P F02D F02D Y02T Y02T F02D F02D F02D F02D
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Hiroyuki Ryohei Kazuhiro Hirotaka Yuji Kenji
Yamashita Ono Nagatsu Suzuki Harada Uchida