| 摘要 |
<p>Among the gears in a tractor gearbox, diven by the main shaft, one (17) has a hub (17a) on which are formed several scoops (17b). These force the lubricant in the sump around the case. Each scoop has two holes (18). These reduce the resistance exerted by the oil and thus the torque required to move it and also reduce the oil spray.</p> |
