WILMINGTON, MA - AMETEK Aerospace & Defense has been selected to provide heat exchangers, hydraulic quantity indicators, temperature sensors and pressure transducers to Parker Aerospace for the advanced hydraulic subsystem it is developing for the new Boeing 787 Dreamliner.
The Parker hydraulic subsystem will operate at 5,000 psi, compared with a traditional commercial aircraft pressure of 3,000 psi. The greater rate of pressure will reduce the size of the equipment needed and thus reduce the weight of the entire subsystem. Increased efficiency is a key performance factor for the hydraulic subsystem, and AMETEK's transducers will be critical components in achieving the increased pressure required by the advanced hydraulic subsystem.
The subsystem incorporates 19 AMETEK pressure transducers (10 high-pressure, three low-pressure and six differential pressure). AMETEK's pressure transducers incorporate patent-pending Silcon on Insulator (SOI) technology that provides for highly accurate, highly stable pressure transducer performance over extended temperature ranges. The pressure transducers also are designed for 2-wire 4-20mA output current, instead of typical 3- and 4-wire configurations used in other aircraft hydraulic system, saving weight and simplifying installation.
In addition, the Hughes Treiter unit of AMETEK Aerospace & Defense specially designed a high-pressure aluminum tube-fin heat exchanger to satisfy the heat dissipation required for the new hydraulic system. Installed in the main fuel tanks, the Hughes Treitler heat exchangers use natural convection to remove heat from the hydraulic oil. These highly reliable and robust heat exchanger units are designed to withstand over one million pressure cycles and a 5,000 psig burst pressure, while maintaining an optimal heat transfer to weight ratio.
AMETEK's temperature sensors are based on highly reliable Resistance Temperature Detector (RTD) technology and provide a resistance output proportional to temperature. Along with the pressure transducers, these temperature sensors provide data to system controllers and pumps to ensure that flight surfaces are properly controlled.
AMETEK's hydraulic quantity indicators are based on a rugged and proven design that makes them ideally suited for use in severe aircraft maintenance panel environment. The indicators are designed to interface with a variety of aircraft monitoring systems. That allows for simple monitoring of system hydraulic fluid by ground maintenance personnel and permits the Dreamliner aircraft to meet its turn around requirements.
The Boeing 787 Dreamliner, which is scheduled to enter service in 2008, is expected to be a revolutionary aircraft in its use of lightweight composites and other innovative materials and technologies. It will carry between 200 and 250 passengers upwards of 8,500 nautical miles and is expected to use 20 percent less fuel than current aircraft of comparable size.
Parker Aerospace, an operating segment of Parker Hannifin Corporation, designs and manufactures hydraulic, fuel, and pneumatic components, systems and related electronic controls for aerospace and other high-technology markets. With annual sales exceeding $8 billion, Park Hannifin is the world's leading diversified manufacturer of motion and control technologies and system, providing precision-engineered solutions for a wide variety of commercial, mobile, industrial and aerospace markets. The company employs more than 55,000 people in 46 countries around the world. Parker has increased its annual dividends paid to shareholders for 50 consecutive years, among the top five longest-running dividend increase records in the S&P 500 index. For more information contact the company's website at www.parker.com
AMETEK Aerospace & Defense is a leading supplier of engine and aircraft monitoring systems, data acquisition units, power distribution systems, fuel and fluid measurement systems, engine and airframe sensors, cables, harness assemblies, avionics blowers, fans, and heat transfer and cooling systems. It is a unit of AMETEK, Inc. (NYSE: AME), a leading global manufacturer of electronic instruments and electric motors with annualized sales of more than $1.6 billion.
For more information, contact
AMETEK Aerospace & Defense
50 Fordham Road
Wilmington, MA 01887
Web Site: www.ametekaerodefense.com