Which type of accumulator is described as being constructed in two halves, either screwed or bolted together, and operates like a bladder-type accumulator?

Which type of accumulator is described as being constructed in two halves, either screwed or bolted together, and operates like a bladder-type accumulator?

• A. Gas-loaded accumulator
• B. No barrier accumulator
• C. Diaphragm type
• D. Piston-type

Answer: (C)

The main idea is a gas-charged accumulator that uses a flexible barrier between the hydraulic fluid and the gas, with the shell built from two halves bolted or screwed together. In this design a diaphragm separates the gas from the oil, forming a movable boundary. When hydraulic pressure on the fluid side increases, the diaphragm flexes and compresses the gas, storing energy. When demand rises or pressure drops, the compressed gas expands, pushing the fluid back and helping to smooth out pressure fluctuations. This setup is characteristic of diaphragm-type accumulators, since the barrier is a flexible diaphragm sandwiched between two halves of the housing, providing a bladder-like operation without using a separate bag inside.