Overview

Original Research

THE EFFICIENCY OF A LAVAL NOZZLE SPARK PLUG

NASIROV ILHAM ZAKIROVICH 1, GAFFOROV MAKHAMATZOKIR TOSHTEMIROVICH 2, and RAKHMONOV KHUSHNUDBEK NURMUHAMMAD UGLI 3.

Vol 17, No 08 ( 2022 )   |  DOI: 10.5281/zenodo.6969359   |   Author Affiliation: Ph.D., Associate Professor, Andijan Machine-Building Institute, Republic of Uzbekistan, Andijan 1; Senior lecturer, Andijan Machine-Building Institute, Republic of Uzbekistan, Andijan 2; Assistant, Andijan Machine-Building Institute, Republic of Uzbekistan, Andijan 3.   |   Licensing: CC 4.0   |   Pg no: 458-467   |   To cite: NASIROV ILHAM ZAKIROVICH, et al., (2022). THE EFFICIENCY OF A LAVAL NOZZLE SPARK PLUG. 17(08), 458–467. https://doi.org/10.5281/zenodo.6969359   |   Published on: 06-08-2022

Abstract

In order to eliminate the shortcomings of the conventional classic spark plug, the spark plugs were improved in 2 ways: by drilling a hole from the outer L-shaped electrode and cutting out the outer L-shaped electrode of a long threaded spark plug and installing the spark plug into the engine through the supports in the form of a Laval nozzle. Spark plugs installed on cars manufactured by Uzavtomotors JSC have passed laboratory and road tests. The effective fuel consumption of the engine operating with a spark plug with a Laval nozzle was 218 g/kWh, which is 1.31 times less than that of a conventional classic spark plug (control). The acceleration time of the car to a speed of 100 km / h was 11.4 seconds, which is 1.21 times less than the control one. The content of carbon monoxide CO in the exhaust gases was 1.86%, which is 2.10 times less than the control.

Keywords

car, engine, spark plug, L-shaped electrode, hole, Laval nozzle, fuel consumption, exhaust gas, carbon monoxide, spark, power, economy