Which combination is associated with faster cylinder actuation in the given scenario?

• A. Regulating valve closed alone
• B. Reservoir removed
• C. Filter replaced
• D. Accumulator used with the pump

Answer: (D)

When you want cylinder actuation to happen faster, the key factor is delivering the fluid to the cylinder quickly enough, i.e., the instantaneous flow rate into the actuator.

An accumulator stores pressurized hydraulic fluid and can release a rapid burst into the line when the cylinder starts moving. That quick energy surge boosts the flow into the cylinder right when it’s needed, overcoming momentary limits of the pump or line resistance. In practice, this means faster initial movement and a more responsive actuation without simply cranking up pump size.

If the regulating valve is closed, flow is restricted, which slows the cylinder rather than speeds it up. Removing the reservoir deprives the system of available fluid and a return path, which can cause instability and slower response. Replacing a filter might improve flow if a clog was choking it, but it doesn’t reliably provide a speed boost the way an accumulator does, and it doesn’t address peak-demand delivery.