Bi-fuel System - Gasoline/LPG in A Used 4-Stroke Motorcycle - Fuel Injection Type

Abstract

Abstract. Bi-fuel-Gasoline/LPG system has been effectively and efficiently used in gasoline vehicles with less pollutants emission. The motorcycle tested was a used Honda AirBlade i110 -fuel injection type. A 3-litre LPG storage tank, an electronic fuel control unit, a 1-mm LPG injector and a regulator were securely installed. The converted motorcycle can be started with either gasoline or LPG. The safety relief valve was set below 48 kPa and over 110 kPa. The motorcycle was tuned at the relative rich air-fuel ratio () of 0.85-0.90 to attain the best power output. From dynamometer tests over the speed range of 65-100 km/h, the average power output when fuelling LPG was 5.16 hp; dropped 3.9% from the use of gasoline91. The average LPG consumption rate from the city road test at the average speed of 60 km/h was 40.1 km/l, about 17.7% more. This corresponded to lower LPG's energy density of about 16.2%. In emission, the CO and HC concentrations were 44.4% and 26.5% lower. Once a standard gas equipment set with ECU and LPG injector were securely installed and the engine was properly tuned up to suit LPG's characteristics, the converted bi-fuel motorcycle offers efficiently, safely and economically performance with environmental friendly emission.

Design of the MCCIS on the Gas-Fueled Motorcycle to Overcome Detonation in Engine Idling

“…This corresponded to a decrease in the energy density of LPG of about 16.2%. The concentration of CO and HC were 44.4 % lower and 26.5% lower in emissions [7].…”

“…Figure 11: Torque test result for motorcycle using conventional and gas fuel The natural gas produces 17% lower torque than petrol as shown in the Figure 10. According Suthisripok et al [7], the performance of the converted natural gas will generally drop 15-20% from the petrol. In general, modified vehicles suffer from power loss and experience drive problems as a result of retro fit conversion packages design and/or installation.…”

Design, Fabrication and Evaluation of LPG-Fuel Injection System for Motorbikes

“…Bình lọc (5) có nhiệm vụ loại bỏ các tạp chất trong nhiên liệu trước khi đưa đến kim phun (7). Trong quá trình làm việc, bộ điều khiển trung tâm ECU (14) sẽ nhận tín hiệu từ cảm biến vị trí trục cam (8), cảm biến tốc độ động cơ (11), cảm biến vị trí bướm ga, áp suất và nhiệt độ khí nạp (13) để xử lí và tính toán được thời điểm phun phù hợp với từng chế độ hoạt động của động cơ. Trong nghiên cứu này, vì áp suất phun được giữ không đổi nên lưu lượng qua kim phun Q in j là một hằng số.…”

Uji Performa Motor Matic 110 Cc Dengan Konsep Bi-Fuel (Gasoline-Lpg)

“…Dari hasil tersebut, nilai daya untuk variasi input mixer 1 dan 2 dan 3 lubang masing-masing mengalami penurunan nilai sebesar 6,6%; 2,6% dan 3,9% dibandingkan bahan bakar gasoline. Hal ini sesuai dengan literatur yang menyebutkan bahwa nilai daya untuk bahan bakar LPG lebih kecil dibandingkan dengan daya untuk bahan bakar gasoline (Suthisripok, Phusakol, & Sawetkittirut, 2017).…”