An accumulator is an energy storage device: a device which accepts energy, stores energy, and releases energy as needed. ... Various devices can store thermal energy, mechanical energy, and electrical energy. Energy is usually accepted and delivered in the same form.

What do accumulators store?

An accumulator is a register for short-term, intermediate storage of arithmetic and logic data in a computer's CPU (central processing unit). ... The most elementary use for an accumulator is adding a sequence of numbers.

What does a accumulator do?

An accumulator is an energy storage device. It stores potential energy through the compression of a dry inert gas (typically nitrogen) in a container open to a relatively incompressible fluid (typically hydraulic oil). There are two types of accumulators commonly used today.