Which type of elevator is powered by a piston inside a cylinder?

The type of elevator powered by a piston inside a cylinder is a hydraulic elevator. Hydraulic elevators function by utilizing a hydraulic system where fluid is pumped into a cylinder, causing a piston to move upward. This movement raises the elevator car. When the elevator needs to descend, the fluid is released from the cylinder, allowing the piston to lower and the car to descend smoothly.

Hydraulic systems are particularly advantageous for low-rise buildings because they have a simpler design and are generally more cost-effective for shorter distances. Consequently, this type of elevator is primarily used in buildings with fewer floors. The inclusion of a significant weight capacity and the ability to control speed with precision makes hydraulic elevators a popular choice in many applications.

Other types of elevators, such as electric elevators and traction elevators, use different mechanisms that do not involve a piston and cylinder arrangement. Traction elevators, for instance, rely on ropes and pulleys for movement. Understanding the distinct mechanics of hydraulic elevators is crucial for recognizing their applications in building utilities.