PneuDraulics, Inc. (PDI) is a leading manufacturer and supplier of hydraulic reservoirs for the aerospace industry. Hydraulic reservoirs are essential components of hydraulic systems, as they store and supply fluid to the pumps and actuators that power various aircraft functions, such as landing gear, flight controls, and brakes.

PDI offers custom aerospace bootstrap reservoir designs that are specially suited for aerospace applications. Aerospace bootstrap reservoirs maintain return system (low pressure) charge by using system (high) pressure to prevent pump cavitation as various hydraulic functions are activated. Cavitation is a phenomenon that occurs when the fluid pressure drops below its vapor pressure, causing bubbles to form and collapse, which can damage the pump and reduce its efficiency. Aerospace bootstrap reservoirs eliminate this problem by using a piston or bladder to separate the system fluid from the return fluid, and applying system pressure to the return fluid to keep it above the vapor pressure.

PDI’s reservoirs also accommodate system volume changes as different system components are activated and use system fluid. System volume changes occur when the fluid expands or contracts due to temperature changes, or when the fluid is consumed or released by the actuators. PDI’s reservoirs adjust the return fluid volume accordingly to maintain the system pressure and prevent fluid loss or overflow.

PDI is the world leader in custom aerospace bootstrap reservoir designs for the regional and business jet segments. PDI’s reservoirs have volumes from 150 to over 1000 cubic inches, and include visual and electrical volume indication, along with options for overfill protection, temperature and pressure monitoring, and manual bleeding provisions. Visual and electrical volume indication allow the operators to monitor the fluid level and detect any leaks or anomalies. Overfill protection prevents the fluid from spilling out of the reservoir in case of excessive volume changes. Temperature and pressure monitoring enable the operators to control the fluid conditions and optimize the system performance. Manual bleeding provisions allow the operators to remove any air or gas from the system, which can affect the fluid flow and pressure.

PDI’s hydraulic reservoirs are used worldwide on various airframes, such as Bombardier CRJ NextGen, Cessna CJ4, COMAC ARJ21, and Embraer Legacy. PDI’s hydraulic reservoirs are known for their high quality, performance, and reliability. PDI’s reservoirs are designed and manufactured to meet the highest standards and specifications of the aerospace industry, and are certified by the FAA, EASA, CAAC, and other authorities. PDI’s reservoirs are also tested and validated in-house and in the field to ensure their functionality and durability under various operating conditions and environments.

If you are looking for hydraulic reservoirs for your aerospace applications, contact PDI today and get a quote. PDI is your trusted partner for hydraulic system components. PDI has over 50 years of experience and expertise in the aerospace industry, and has a proven track record of delivering innovative and cost-effective solutions. PDI also provides repair and overhaul services for its products and other OEMs. PDI is committed to customer satisfaction and excellence in everything it does.