PFI System for Retrofitting Small 4-Stroke Gasoline Engines

Hushim, Mohd Faisal; Alimin, Ahmad Jais; Selamat, Hazlina; Muslim, Mohd Taufiq

doi:10.7763/ijesd.2013.v4.374

Cited by 6 publications

(4 citation statements)

References 13 publications

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“…Keuntungan paling menonjol dari sistem PFI adalah investasi modalnya yang rendah, berbeda dengan DI yang berbiaya tinggi, sangat kompleks dan mahal untuk diterapkan pada mesin komersial. Sementara itu, sistem DI diketahui mengeluarkan jumlah partikel yang lebih tinggi daripada sistem PFI [10]. Dibandingkan dengan mesin karburator, sistem injeksi bahan bakar membutuhkan sistem tekanan bahan bakar yang tinggi.…”

Section: Sistem Bahan Bakar Dan Injeksiunclassified

Pengaruh Perubahan Sistem Pemasukan Bahan Bakar dan Rasio Kompresi Motor Bakar 4-Tak Single Cylinder terhadap Torsi dan Daya

Azhar

2023

JTETA

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Teknologi injeksi adalah suatu sistem pemasukan bahan bakar pada kendaraan bermotor dengan cara disemprotkan. Penyemprotan bahan bakar dikontrol menggunakan komponen elektronik untuk mempertahankan keseimbangan campuran udara dan bahan bakar. Campuran udara dan bahan bakar yang seimbang dapat meningkatkan performa kendaraan dan mengurangi emisi gas buang yang dapat merusak lingkungan. Pada penelitian ini telah dilakukan modifikasi sepeda motor dengan sistem pemasukan bahan bakar karburator menjadi sistem injeksi dan diamati perubahannya terhadap torsi dan daya. Selain modifikasi sistem pemasukan bahan bakar, dilakukan juga pengamatan terhadap perubahan rasio kompresi. Hasil pengujian menggunakan dynotest menunjukkan terjadi peningkatan torsi pada sepeda motor dengan sistem pemasukan bahan bakar injeksi dan rasio kompresi 9:1 sebesar 8,5% dibandingkan dengan sistem pesakukan bahan bakar karburator, sedangkan untuk rasio kompresi 10:1 mengalami peningkatan sebesar 14,8%. Pengamatan pada daya menunjukkan peningkatan sebesar 15,7% pada rasio kompresi 9:1 dan 18,3% pada rasio kompresi 10:1.

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Section: Sistem Bahan Bakar Dan Injeksiunclassified

Pengaruh Perubahan Sistem Pemasukan Bahan Bakar dan Rasio Kompresi Motor Bakar 4-Tak Single Cylinder terhadap Torsi dan Daya

Azhar

2023

JTETA

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“…The offline training of the estimator network were conducted by using the experimental data taken from a retrofit fuel injection system (RFIS) of a small engine as described in [ 21 ]. The main objective of this experimental work is to verify the effectiveness of the proposed estimator that are trained with the hybrid algorithm.…”

Section: Manifold Absolute Pressure (Map) Estimation Using Neural Netmentioning

confidence: 99%

Manifold absolute pressure estimation using neural network with hybrid training algorithm

et al. 2017

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In a modern small gasoline engine fuel injection system, the load of the engine is estimated based on the measurement of the manifold absolute pressure (MAP) sensor, which took place in the intake manifold. This paper present a more economical approach on estimating the MAP by using only the measurements of the throttle position and engine speed, resulting in lower implementation cost. The estimation was done via two-stage multilayer feed-forward neural network by combining Levenberg-Marquardt (LM) algorithm, Bayesian Regularization (BR) algorithm and Particle Swarm Optimization (PSO) algorithm. Based on the results found in 20 runs, the second variant of the hybrid algorithm yields a better network performance than the first variant of hybrid algorithm, LM, LM with BR and PSO by estimating the MAP closely to the simulated MAP values. By using a valid experimental training data, the estimator network that trained with the second variant of the hybrid algorithm showed the best performance among other algorithms when used in an actual retrofit fuel injection system (RFIS). The performance of the estimator was also validated in steady-state and transient condition by showing a closer MAP estimation to the actual value.

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“…Current direct injection fuel systems, both research and application, are more developed in diesel engines (Hooper, Al-Shemmeri and Goodwin, 2011). As for the research and application of direct injection fuel system technology in gasoline engines, most are developed for 4-stroke gasoline engines (Hushim et al, 2013;Chincholkar and Suryawanshi, 2016;Kathuria, 2016;Kalwar and Agarwal, 2020). The ability to ignite a mixture of fuel and air in a 4stroke gasoline engine with direct injection is influenced by the timing and duration of fuel injection (Parker, 2011).…”

Section: Introductionmentioning

confidence: 99%

The Influence of Fuel Pump Pressure Variations on the Performance of 2-Stroke Gasoline Direct Injection Engines

Darwin Rio Budi Syaka,

I Wayan Sugita,

Nugroho Gama Yoga

et al. 2024

ASIIMETRIK

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The direction of technological development in 2-stroke gasoline direct injection engines is to improve engine performance and reduce exhaust gas pollution, where the solution to achieve this is to use a high-pressure electric fuel pump that produces stable fuel pressure and is practical in its application. This research aims to determine the influence of variations in fuel pressure on the performance, especially torque and power, of a 2-stroke gasoline direct injection engine. Tests were carried out on a 110 cc 2-stroke gasoline direct injection motorcycle engine using Research Octane Number (RON) 90 fuel at varying fuel pressures of 7.5 Bar, 8 Bar, and 8.5 Bar on a chassis dynamometer to obtain engine performance data in the form of torque and power. The results of this research show that increasing fuel pressure will increase the atomization of fuel particles so that it will influence increasing the performance of this engine, where maximum torque and power of 6.20 Nm and 2.00 kW are achieved at 3250 rpm, at a pressure of 8.5 Bar.

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PFI System for Retrofitting Small 4-Stroke Gasoline Engines

Cited by 6 publications

References 13 publications

Pengaruh Perubahan Sistem Pemasukan Bahan Bakar dan Rasio Kompresi Motor Bakar 4-Tak Single Cylinder terhadap Torsi dan Daya

Pengaruh Perubahan Sistem Pemasukan Bahan Bakar dan Rasio Kompresi Motor Bakar 4-Tak Single Cylinder terhadap Torsi dan Daya

Manifold absolute pressure estimation using neural network with hybrid training algorithm

The Influence of Fuel Pump Pressure Variations on the Performance of 2-Stroke Gasoline Direct Injection Engines

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