What is the function of a hydraulic accumulator during peak demands?

The function of a hydraulic accumulator during peak demands is primarily to provide a source for additional hydraulic power. When the hydraulic system experiences a sudden increase in demand for fluid flow or pressure, the accumulator acts as a reservoir that can release stored hydraulic fluid quickly to meet this demand. This capability helps maintain system pressure and ensures that critical functions can continue to operate efficiently without a significant drop in performance.

Accumulators work by storing hydraulic fluid under pressure, which can be released as needed, making them vital during moments when the demand exceeds what the pump can provide at that instant. This is essential in applications like landing gear operation, where rapid response is crucial.

The other options do not accurately reflect the role of a hydraulic accumulator in relation to peak demand. For instance, lowering system pressure is contrary to the accumulator's role of supporting pressure when needed. Similarly, while a hydraulic accumulator does store fluid, its primary function during peak demand is to release that fluid to provide extra power. Monitoring fluid temperature is not a function of an accumulator and falls outside the scope of hydraulic fluid management.