GEAR TRAIN LAYOUT STRUCTURE FOR DRIVING A FUEL PUMP

摘要

A gear train layout structure may include a fuel pump configured to pressurize fuel and to supply the pressurized fuel to an engine, a pump shaft, a driven gear for rotating the pump shaft, a driving gear to drive the driven gear, a first balance shaft and a second balance shaft respectively mounted at a front and a rear of a crankshaft of the engine for balancing the engine and attenuating vibration of the engine, a first balance gear and a second balance gear, a crank gear fixedly mounted on a side portion of the crankshaft, and at least one connecting rod connecting the crankshaft and a piston for rotating the crankshaft.

主权项

1. A gear train layout structure comprising:
a fuel pump configured to pressurize fuel and to supply a pressurized fuel to an engine; a pump shaft mounted to the fuel pump configured to pressurize the fuel; a driven gear fixedly mounted on a side portion of the pump shaft for rotating the pump shaft; a driving gear engaged with the driven gear to drive the driven gear; a first balance shaft and a second balance shaft respectively mounted at a front and a rear of a crankshaft of the engine parallel to the crankshaft for balancing the engine and attenuating vibration of the engine; a first balance gear and a second balance gear respectively fixedly mounted on side portions of the first balance shaft and the second balance shaft; a crank gear fixedly mounted on a side portion of the crankshaft; and at least one connecting rod connecting the crankshaft and a piston for rotating the crankshaft, wherein the first balance shaft and the second balance shaft are respectively driven as the first balance gear and the second balance gear are driven by the crank gear, and the driving gear comprises double columns together with the first balance gear or the second balance gear by the driving gear being fixedly mounted on the first balance shaft or the second balance shaft.