In mechanical power transmission by means of a geartrain
, gear teeth deliver the power by rolling and sliding over each other.
The 'Star' Geartrain
design was rejected because it is difficult to maintain and it is not possible to get enough ratio for high speed ac motors.
In addition to providing further experience in LEGO geartrain
design, this assignment begins to raise significant design choices.
and consist of a brush type rare earth permanent magnet motor, a conventional spur geartrain
, two bull gear / jackscrew combinations coupled together by a single spur gear, two drive nut/moveable output rams, and a feedback Rotary Variable Differential Transformer (RVDT).
The oil reservoir was positioned above, not below, the geartrain
The pressure- and flow-compensated pump, and a gear pump to supply the discharge conveyor motor, are driven off the auxiliary drives on the front geartrain
of the engine.
The precision gearhead has a steel geartrain
and is made for operating temperature up to 100[degrees]C.
The first thing that had to go, of course, was the connection to the geartrain
Among the reusable parts were the cylinder block, geartrain
and both camshafts, crankshaft, rod bearing and main bearings, overhead (crossheads, rocker levers, rocker shafts, cam followers and push rods), intake system and cylinder head guides.
The oil reservoir is positioned above, not below, the geartrain
The Tier 3 engines feature robust, stiff structures of the core engine, which includes design features such as bedplate crankcase, rear geartrain
and large-diameter crankshaft pins.
All of these components are of course exposed to greater shock loadings than the wheelmotor geartrain
components, due to the characteristics of the motorised wheel gear reduction, and the inherent advantages in the control systems' ability to contour torque application, and the 'differential effect' of the electric drive system.
A conventional epicyclic geartrain
consists of a central gear (the sun gear) around which several planet gears are mounted on a rotating carrier.
The enabling technology of this is a geartrain
at the back of the engine," said Admir Kreso, Detroit Diesel engineer.
The Kubota 07 Series engines offer up to 100% power take-off (PTO) from a geartrain
located on the flywheel side designed for compact positioning of PTO hydraulic devices.