Open AccessMethod for reducing the hourly fuel consumption in the transport mode of operation of a forestry machine and tractor unit
Author(s) -
M. Ya. Durmanov,
B. G. Martynov,
Oleg Mikhaylov,
С. В. Спиридонов
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/817/1/012008
Subject(s) - fuel efficiency , automotive engineering , diesel fuel , environmental science , tractor , energy consumption , thrust specific fuel consumption , engineering , electrical engineering
By improving energy consumption in technological operations, the amount of fuel required and the operating costs of a machine-tractor unit (MTU) can also be reduced, which ultimately lowers the costs of forestry operations and reforestation. Inefficient fuel consumption significantly reduces the performance indicators of an MTU, which is also characteristic of the transport mode, although its duration is short. The article investigates the influence of a corrective device in the diesel fuel supply system on the hourly fuel consumption of a forestry MTU. For the transport mode, the diesel fuel consumption per hour is determined for dynamic loads by component: from resistance on the rise; from the MTU inertial forces; from oscillations of the MTU suspension in the longitudinal-vertical plane; from mechanical losses in the friction pairs of the engine, as well as its total value. The maximum values of the total dynamic component of the hourly fuel consumption in the transport mode are observed at frequencies close to 2.5 s −1 , i.e. its own, energy-consuming frequency of oscillations of the rotational speed of the crankshaft of an SMD-20T.04 engine. To improve the fuel efficiency of an MTU diesel engine, it is necessary to introduce a corrective device into the design of the high-pressure fuel pump (HPFP). As a corrective device, it is advisable to use an oscillation damper of the rail of the fuel pump (FPR).