Pratt Whitney

Figure 1-14. A smaii aeroderivative gas turbine. (Courtesy Pratt Whitney Canada Corp.)...

Cases of the development of proprietary materials for in-house use are found in certain industries. For example, Pratt—Whitney initially developed high-temperature alloys for their own jet engines. Since that time, they have licensed some of their materials technology to other manufacturers, but the market advantage to them early on was significant. 

Fuels with J42 Combustor Experience, Pratt Whitney, East Hartford, Conn., No. CG-51-5 (April 16, 1951). 

Sikorsky Pratt Whitney Hamilton Sundstrand UTC Fire and Security UTC Power... 

Poydras Energy Partners LLC MESA ENERGY INC Praair Surface Technologies, Inc. PRAXAIR INC Pratt Whitney UNITED TECHNOLOGIES CORPORATION... 

Combining the essences of previous researchers work, a new alkaline fuel cell that could operate at 200°C was successfully designed in the 1940s [8, 9], The fuel cell provided a current density of 1 A/cm2 at a cell voltage of 0.8 V, a significant jump in progress. Based on this prototype, Bacon in 1952 successfully developed a 5 kW AFC power plant, which resulted in the construction of alkaline fuel cell power plants by Pratt Whitney, who designed and developed the fuel cell system as part of the power supply system for the Apollo aircraft. 

R. B. Ferguson, Pratt Whitney Aircraft, Design and Development of H2/C>2-Fuel cell power plants for Apollo Command Module, NASA/Houston Final report 6/16/1962, Apollo Fuel Cell System, Proceedings of 23rd Annual Power Sources Conference, 1969, pp. 11-13. 

In den USA wurde die Weiterentwicklung der Bacon-Zelle zunachst von der Leesona Moos Corp, und dann von Pratt Whitney vorgenom-men (32). Die Temperatur wurde auf 250 °C und die Konzentration der Kalilauge auf ca. 90% erhoht es handelt sich also nahezu um geschmol-zenes Kaliumhydroxid. Die Zelle benbtigt auf diese Weise nur noch einen Uberdruck von ca. 1 atii. Pratt Whitney hat im Auftrag der NASA... 

J. T. DeMasi, K. D. Sheffler, and M. Ortis (United Technologies, Pratt Whitney) NASA CRl 82230, December 1989. 

Lovett s team at Pratt Whitney (Chapter 17) applied a fuel-control system in an actual aircraft engine combustor to actively control pattern factor. For this purpose, available fuel injectors were properly equipped with miniature valves to make possible spatial control of individual fuel injection sites. Optical temperature sensor probes and a traversing gas-sampling rake were integrated into a test rig to quantify the spatial exit temperature distribution in the combustor. Preliminary results have shown good ability to control pattern factor this way. 

The Pratt Whitney rifling machine gives from one turn to the grooves in 20 to one in The rutter ro l carries... 

S. Bose and J. T. DeMasi-Marcin, Thermal barrier coating experience in gas turbine engines at Pratt Whitney. Proceedings of Thermal Barrier Coating Workshop, Cleveland, OH, March 27-29,1995, p. 63 (NASA CP 3312). 

Funding for the activity that led to this publication was provided by Cummins Engine Company, DaimlerChrysler Corporation Fund, Defense Advanced Research Projects Agency, Department of Defense Research and Engineering, Hewlett-Packard Company, Lockheed Martin Corporation, Lucent Technologies, Microsoft Corporation, National Aeronautics and Space Administration, Parsons Brinckerhoff, Inc., Pratt Whitney, San-dia National Laboratories, Science Applications International Corporation, Xerox Foundation, Xerox Research and Technology, and the National Academy of Engineering Fund. 

Engines Pratt Whitney 4000 General Electric GE90 Rolls-Royce Trent 800 Pratt Whitney 4000 General Electric GE90 RoUs-Rcyce Trent 800... 

ETOPS-capable, as part of tbe basic design. To ensure reliability, the 777 with Pratt Whitney engines was tested and flown under all appropriate conditions to prove it is capable of flying ETOPS missions. A summaiy of Boeing 777 specifications is shown in Table 1. 

Materials were adapted with permission from Pratt Whitney, a United Techonologies Company. Text by Matthew Broder. 

FIGURE 1. Pratt Whitney F-119 Tuibofan Engine with Exhaust Divertors (forthe F22 Raptor)... 

Brand, J., Sampath, S., Shum, F., Pratt Whitney Canada, Bayt, R.L., United Technologies Research Center, Cohen, J., Pratt Whitney Potential Use of Hydrogen in Air Propulsion, AlAA 2003-2879, 17 July 2003... 

Air Force Research Laboratory. AFRL/MLLMN, Wright-Patterson AFB, OH Pratt Whitney, East Hartford, CT Auburn University, Auburn. AL Research Applications, Inc., San Diego, CA... 

Gavin Hendricks Chief, Fluid Systems Pratt Whitney... 

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