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Tuharno Tuharno
Poltekad Malang
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ANALYSIS OF WORKING PERFORMANCE IN ENGINEERING MODIFICATION OF FEROZA VEHICLES WITH FUEL INJECTION SYSTEM Apriyanto Apriyanto; Mohammad Ma'ruf; Tuharno Tuharno
TRANSMISI Vol 15, No 1 (2019): Edisi Pebruari 2019
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v15i1.4735

Abstract

Daihatsu Feroza vehicle is one type of official vehicle that is still used to support basic tasks in the ranks of the Army. This vehicle is one of the vehicles that wasteful of fuel. This is influenced by the fuel system used is the conventional fuel system. To overcome this, modifications are made to the fuel system of the feroza service vehicles using a fuel injection system that is more fuel efficient. Testing using the fuel injection system has decreased compared to by using a conventional fuel system at engine power and engine thermal efficiency. From the analysis it was concluded that the effective power and efficiency of the engine produced using the injection system is smaller than using conventional systems. Power at 1800 rpm engine speed uses an injection system that is 210 Nm with a thermal efficiency of 42.97% and uses a conventional system that is 240 Nm with a thermal efficiency of 48.20%.
THEORETICAL STUDY OF INJECTOR TESTING USING ELECTRIC INJECTOR TESTING TOOLS Agung Suprianto; Tuharno Tuharno
TRANSMISI Vol 15, No 2 (2019): Edisi September 2019
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v15i2.4776

Abstract

The development of technology, especially in the field of modern and sophisticated automotives, one of the technologies being developed is EFI (electronic fuel injection). EFI is a fuel spraying system whose performance is electrically controlled in order to obtain the value of the mixture of air and fuel that is in accordance with the needs of the combustion motor, so that optimal motor power can be obtained with minimal fuel use and has an environmentally friendly exhaust gas. The function and function of fuel injection system of the EFI system on the vehicle consists of three systems, especially the fuel system, the induction system and the electrical control system. The injector is an electromagnetic nozzle whose operation is controlled by the computer, the injector is equipped with a heat insulator on the inlet or on the cylinder line which is close to the input line. The way the injector works is as well as when the ECU sends its signal in the form of a solenoid coil then it must be converted into a magnet which will lift the nose to its upper position, so that the injector gate will open and the high pressure fuel supplied by the fuel pump can come out or spray gently. The electric injector is one of the only substances used to spray and atomize gasoline into the burner according to the Firing Order (FO) sequence.
Co-Authors Agung Suprianto Apriyanto Apriyanto Mohammad Ma'ruf