Outcome 4.7 — Transmission of Power in Fluid and Electromechanical Systems

Power Transmission

The process of moving energy from a source to a load in a controlled way.

Mechanical Power Transfer

The transmission of power through direct contact forces between solid parts, such as shafts and gears.

Hydraulic Power Transfer

The method of transmitting power using pressurized liquids, typically oil.

Pneumatic Power Transfer

The use of compressed air to transmit power in a system.

Electrical Power Transfer

The movement of energy through electric fields and currents in conductors.

Torque

The turning effect produced by a force applied at a distance from a pivot point.

Pascal’s Law

Pressure applied to a confined fluid is transmitted undiminished throughout the fluid.

Efficiency

A measure of how much input energy is converted to useful output energy, represented as a fraction.

Flow Rate

The volume of fluid that moves through a system per unit of time.

Force

A push or pull that causes an object to move or change its motion.

Speed

The rate at which an object moves, often measured in revolutions per minute or meters per second.

Power

The rate at which work is done or energy is transferred, measured in watts.

Input Power

The total power supplied to a system or component.

Output Power

The power that is delivered or used by a load from a system.

Hydraulic Pump

A device that moves fluid and creates flow in a hydraulic system.

Bearing Failure

A malfunction of the bearing often caused by misalignment, wear, or lubrication issues.

Air Preparation Unit

A component that includes a filter, regulator, and lubricator to prepare compressed air for use.

Directional Control Valve

A valve that directs the flow of air to extend or retract pneumatic cylinders.

Compressor

A machine that compresses air and stores it for pneumatic systems.

Torque Relationship

The connection between force and distance that determines the torque produced.

Leakage

Loss of fluid or air through unintended openings, leading to reduced efficiency in systems.

Actuator

A device that converts energy into motion, such as a pneumatic cylinder or motor.

Flow Control Valve

A valve used to regulate the speed of an actuator by controlling airflow.

Lubrication

The application of a substance (like oil) to reduce friction between moving parts.

Cylinder Drift

The unintended movement of a cylinder when not actuated, often due to seal leakage.

Pressure Relief Valve

A safety device that prevents excess pressure in a system by releasing fluid.

Control Method

The mechanism used to manage the operation of a power transmission system.