Article

Received 27.03.2022

Revised 20.07.2022

Accepted 22.08.2022

Retrieved from Vol. 26, No. 3, 2022

Pages 118 -126

Gutarevych, Y., & Rychok, S. (2022). Improving the fuel economy of a spark ignition engine by improving the cylinder group disconnection method when adjusting energy indicators using the combined method. The National Transport University Bulletin, 26(3), 118-126. https://doi.org/10.33744/2308-6645-2022-3-53-118-126

Improving the fuel economy of a spark ignition engine by improving the cylinder group disconnection method when adjusting energy indicators using the combined method

Y. Gutarevych S. Rychok

The article presents the results of theoretical and experimental studies of the fuel economy of a spark-ignition engine when adjusting its energy indicators using a combined method and different ways of shutting off a group of cylinders. The object of the study is a spark-ignition engine, the energy indicators of which are regulated by a combined method. The subject of the study is the influence of the method of disconnecting a group of cylinders on the fuel economy of a spark-ignition engine. The purpose of the study is to evaluate various methods of disconnecting a group of cylinders from the point of view of improving the fuel efficiency of a spark ignition engine.It was established that the greatest improvement can be achieved with free admission of heated air into the disconnected cylinder group. In comparison with turning off a group of cylinders with an unchanged gas exchange system, the saving is 1.5 ... 13.5%. With the free intake of unheated air into the disconnected group of cylinders, fuel efficiency improves by 1.5 ... 10.5% compared to an unchanged gas exchange system.

 

spark ignition engine; combined method of regulating energy indicators; cylinder disconnection methods; fuel economy
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https://doi.org/10.33744/2308-6645-2022-3-53-118-126