Experimental Study on the Addition of Hydrogen-Rich Gas to a 4-stroke Gasoline Engine Using a Carburetor

This paper presents the results of an experimental study on the addition of Hydrogen-Rich Gas (HRG) to a 4-stroke, 4-cylinder gasoline engine using a carburetor. The authors have designed and calculated the necessary HRG system for the engine; installed the HRG system for a Toyota 3Y engine using a carburetor; tested the engine’s exhaust gas concentration, fuel consumption, and power of a Toyota 3Y engine with and without the HRG system. Research results show that with a Toyota3Y engine using a carburetor with an HRG system, engine power increases by about 9.5%, fuel economy is about 20.6%, CO concentration is reduced by 37.5%, and HC decreases by about 34%, and CO2 concentration decreased by about 51%.