Fuel combustion advances yield less weight, cleaner emissions, and higher reliabilityFor engine manufacturers, Parker Aerospace offers a number of solutions in the combustor, including Parker's ecology tanks. An original Parker concept, the ecology tank is installed below the engine's combustor and is a reservoir in which unburned fuel accumulates for return to the main fuel tanks following engine shutdown. Ordinarily, unburned fuel can collect in the fuel nozzles causing coking - or a buildup of deposits - that can degrade the nozzle's ability to atomize fuel and cause extra maintenance. When unburned fuel drains to the ecology tank, coking is averted and fuel nozzles can perform at peak efficiency for cleaner fuel burn and reduced emissions. In addition to reducing maintenance costs, any overboard fuel leakage into the environment is eliminated. Fuel nozzle design is another path to reduced emissions, and Parker Aerospace is using additive manufacturing as a tool to develop lighter weight and more advanced nozzles. In addition, Parker Aerospace works closely with its customers to enhance combustor and fuel nozzle design for more consistently sized fuel droplets and improved fuel/air mixture. Controlling these key variables can contribute to meeting increasingly stringent CO, CO 2, and NOx emission standards. Additive technology also eliminates some traditional joining methods and further reduces environmental impact in manufacturing. Weight savings and less vibration with flexible fuel lines Aircraft engine fuel manifolds are often designed as a system of rigid tubing and fittings that surround the combustion section, delivering the fuel needed for power. Parker Aerospace is taking steps to reduce the weight of fuel manifolds by replacing rigid tubing with flexible high-temperature fuel lines from its Stratoflex Division. "Lightweight, flexible manifolds manage vibratory loads more efficiently requiring fewer brackets; a secondary weight savings," said Mossey. Highly efficient, compact thermal management systems Historically, heat exchangers have required a large profile in order to provide the heat removal capacity needed in hostile engine environments. Using its proprietary macrolamination manufacturing technology, Parker Aerospace has been able to design and produce engine heat exchangers that provide exceptional heat removal capacity in small low-profile packages that can occupy any available space. According to Mossey, "Engine thermal management systems built using our macrolamination technology can realize a 15 to 20 percent gain in thermal management efficiency while reducing system size and weight. Macrolamination allows us to design systems featuring micro-cooling channels with aspect rations as high as 30:1. This capability enables us to build lower-profile units that create less disruption to bypass air flow within the engine."
Parker Aerospace is in hall 5, stand #C210, at the Paris International Air Show, June 19-25, 2017.About Parker Aerospace. Parker Aerospace is a global leader in the research, design, integration, manufacture, certification, and lifetime service of flight control, hydraulic, fuel and inerting, fluid conveyance, thermal management, lubrication, and pneumatic systems and components for aerospace and other high-technology markets. The company supports the world's aircraft manufacturers, providing a century of experience and innovation for commercial, military, business, and general aviation aircraft. About Parker Hannifin. Parker Hannifin is a Fortune 250 global leader in motion and control technologies. For 100 years the company has engineered the success of its customers in a wide range of diversified industrial and aerospace markets. Learn more at www.parker.com or @parkerhannifin.