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Referred to as the Bucket Truck, this particular vehicle has a bucket accessory with an expandable arm used to lift staff high up into the air. Bucket Trucks are otherwise called Aerial Boom Trucks. They have a lifting capacity of 150 kg to 700 kg and the bucket itself could be expanded up to 10 meters in the air.
Knuckle Boom Trucks are larger boom trucks which are equipped together with a crane on the back part of the equipment. If the length of the truck is expanded, the truck then becomes a Trolley Boom Truck. These types of lift trucks have a lifting capacity of 10 tons to 50 tons.
A Concrete Boom Truck is yet another type of Boom Truck that has a big container on its rear that is made to lift expandable pipe and concrete. Concrete is pumped with the pipe into a specific location. Concrete Boom Trucks are able to be lengthened up to seventy meters.
The most popular type of torque converter used in automobile transmissions is the fluid coupling kind. In the 1920s there was even the Constantinesco or also known as pendulum-based torque converter. There are other mechanical designs utilized for continuously changeable transmissions which can multiply torque. For example, the Variomatic is a type which has a belt drive and expanding pulleys.
A fluid coupling is a 2 element drive which cannot multiply torque. A torque converter has an added part that is the stator. This alters the drive's characteristics during times of high slippage and produces an increase in torque output.
There are a at least three rotating elements inside a torque converter: the turbine, which drives the load, the impeller, which 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 prevented from rotating under any 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.
