Parker Aerospace high-pressure piston pumps
Parker High-Pressure Plunger Pumps for Aerospace Equipment
Parker Hannifin Corporation is a global leader in motion and control technologies, and its high-pressure plunger pumps for aerospace equipment are renowned for exceptional reliability, efficiency, and performance in the most demanding aviation environments. These pumps serve as critical components in aircraft hydraulic systems, delivering stable and precise hydraulic power to support key flight operations such as flight control, landing gear actuation, and auxiliary system operation.
Core Product Series & Key Features
1. AP15VPA Series Engine-Driven Pumps
As a flagship product line for aerospace applications, the AP15VPA series consists of pressure-compensated, variable-displacement axial piston pumps. Designed and manufactured by Parker Aerospace Hydraulic Systems Division (HSD), these pumps are engineered to provide primary hydraulic power for a wide range of commercial and military aircraft.
- Pressure & Displacement Range: Capable of operating at system pressures between 1,000 and 8,000 psi, with displacement ranging from 0.03 to 5.5 in³/rev, ensuring compatibility with diverse hydraulic system requirements.
- Compact & Lightweight Design: Features an optimized power-to-weight ratio, making it ideal for aerospace applications where weight and space constraints are critical.
- Superior Efficiency & Reliability: Incorporates advanced hydraulic design to minimize energy loss and maximize operational stability, even under extreme flight conditions such as high altitude and temperature fluctuations.
- Precise Pressure Control: Equipped with a pressure compensator that maintains consistent delivery pressure by regulating the hanger angle, ensuring accurate and responsive hydraulic power supply.
2. PV Series Axial Plunger Pumps
The PV series (including models from PV016 to PV360) is another high-performance line widely used in aerospace hydraulic systems. Adopting a swashplate or bent-axis variable-displacement structure, these pumps are celebrated for their high pressure resistance, low noise, and easy maintenance.
- High Pressure Capacity: Boasts a nominal pressure of 350 bar (5,075 psi) and a maximum pressure of 420 bar (6,091 psi) during 20% working cycles, meeting the high-pressure demands of advanced aerospace systems.
- Low Pulsation & Noise: Utilizes a 9-plunger design with pre-compression volume technology, significantly reducing flow pulsation and operational noise, which is crucial for enhancing cabin comfort and system durability.
- Flexible Control Options: Offers multiple control modes including pressure compensation, load sensing, and electrohydraulic flow control, adapting to various system operating conditions.
- Robust Construction: Features a high-strength cast-iron housing and sealed bearings, ensuring long service life and resistance to harsh aerospace environments.
Technical Specifications
| Product Series | Maximum Pressure | Displacement Range | Maximum Speed | Maximum Flow |
|---|---|---|---|---|
| AP15VPA | 8,000 psi (551.6 bar) | 0.03 – 5.5 in³/rev | Dependent on aircraft engine speed | Up to 43.6 gpm |
| PV Series (PV016 – PV360) | 420 bar (6,091 psi) (20% working cycle) | 16 – 360 cm³/rev | 1,750 – 3,000 rpm | Up to 540 l/min (142.6 gpm) at 1,500 rpm |
Aerospace Applications
Parker’s high-pressure plunger pumps are trusted by leading aircraft manufacturers worldwide, supporting both commercial and military aviation platforms, including:
- Commercial Aircraft: Airbus A220, A320, A350 XWB; Boeing 737, 747, 777X, 787; COMAC ARJ21, C919; Bombardier Global 5500/6500/7500; Gulfstream G400/G500/G600/G650/G700
- Military Aircraft: Boeing F-15, F-18, B-52; Lockheed Martin F-16 Falcon, C130 Hercules; Northrop Grumman B-2 Spirit; Sukhoi Superjet
Operational Principle
For the AP15VPA series engine-driven pumps, the rotating group (comprising the cylinder barrel and piston shoe subassemblies) is driven by a splined drive shaft. As the barrel rotates, the pistons reciprocate within their bores, drawing in and discharging fluid through a stationary valve plate. The hanger, supported by bearings, can rotate angularly perpendicular to the cylinder barrel centerline; adjusting the hanger angle varies the piston stroke, thereby changing the pump displacement. The pressure compensator regulates the hanger angle to maintain the desired discharge pressure, ensuring stable hydraulic power output.
For the PV series axial plunger pumps, the swashplate angle adjustment drives the plungers to reciprocate in the cylinder block, completing the suction and discharge processes. The variable displacement design allows the pump to adapt to varying flow and pressure demands of the hydraulic system, optimizing energy efficiency.
