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Another type of Boom Truck is known as a Bucket Truck. It has a bucket accessory together with an expandable arm and specializes in lifting individuals, typically staff high up in the air. Bucket Trucks are even known as Aerial Boom Trucks. They have a lifting capacity of 150 kg to 700 kg and the bucket itself could be lengthened up to 10 meters in the air.
Knuckle Boom Trucks are larger boom trucks which are equipped along with a crane on the rear part of the machinery. If the length of the truck is expanded, the truck then becomes a Trolley Boom Truck. These kinds of forklifts have a lifting capacity of ten tons to fifty tons.
A Concrete Boom Truck is yet one more kind of Boom Truck which has a large container on its back that is made so as to lift concrete and expandable pipe. Concrete is pumped with the pipe into a certain location. Concrete Boom Trucks could be lengthened up to 70 meters.
The fluid coupling type is the most common type of torque converter used in automobile transmissions. During the 1920's there were pendulum-based torque or also called Constantinesco converter. There are different mechanical designs used for constantly changeable transmissions which have the ability to multiply torque. Like for example, the Variomatic is a type that has a belt drive and expanding pulleys.
A fluid coupling is a 2 element drive that is incapable of multiplying torque. A torque converter has an additional component which is the stator. This alters the drive's characteristics all through times of high slippage and generates an increase in torque output.
There are a at least three rotating elements inside a torque converter: the turbine, that drives the load, the impeller, that is mechanically driven by the prime mover and the stator, which is between the turbine and the impeller so that it can change oil flow returning from the turbine to the impeller. Traditionally, the design of the torque converter dictates that the stator be stopped from rotating under whichever condition and this is where the term stator originates from. In point of fact, the stator is mounted on an overrunning clutch. This design stops the stator from counter rotating with respect to the prime mover while still permitting forward rotation.