Pratt and Whitney

Resihency provides another opportunity for the mbber functioning as a cushion between stainless steel loop clamps and fuel—hydraulic fluid lines in aircraft. Pratt and Whitney E-lOO military jet engine use (12) provides vibration damping without the clamp abraiding the tube surfaces in normal service as well as at temperatures down to —55°C. 

G. S. Giggias and E. S. Pettit, Pratt and Whitney Mircraft, report no. ER-11545, East Hartford, Conn., Sept. 1978. 

This process, originally designated as RSR (rapid solidification rate), was developed by Pratt and Whitney Aircraft Group and first operated in the late 1975 for the production of rapidly solidified nickel-base superalloy powders.[185][186] The major objective of the process is to achieve extremely high cooling rates in the atomized droplets via convective cooling in helium gas jets (dynamic helium quenching effects). Over the past decade, this technique has also been applied to the production of specialty aluminum alloy, steel, copper alloy, beryllium alloy, molybdenum, titanium alloy and sili-cide powders. The reactive metals (molybdenum and titanium) and... 

Carbon Deposition in Pratt and Whitney J-42 Turbo Engine, Esso Standard Oil Co., Linden, N. J., July 1951. 

Wagner refused lucrative consulting offers from industry, but studied problems posed to him alone. Sometimes this would result in a letter containing calculations and suggestions. In this way, he initiated study of the three-phase boundary in fuel cell electrodes at the Pratt and Whitney company in the 1950s. His idea became the basis (with electrocatalysis) of successful fuel cell design. 

Alkaline Fuel Cell (AFC). This cell follows directly from the one that Bacon and Watson produced at Cambridge in the 1950s and is the basis of cells developed for NASA (by International Fuel Cells and predecessor companies (United Technologies Power Systems Divisions, Pratt and Whitney Aircraft) since the Apollo moon program, where pure H2 fuel is available. 

Fig. 13.15. The sandwich design for a single cell in the Pratt and Whitney hydrogen-oxygen fuel cell (1965-1975, used in the Apollo project). (Reprinted from J. O M. Bockris and S. Srinivasan, Fuel Cells Their Electrochemistry, Fig. 23, copyright 1969. Reproduced with permission of the McGraw-Hill Companies.)...

With respect to contributions of other mobile sources to the atmospheric burden of trace metals, very few data are available. The National Aeronautics and Space Administration in 1974 published calculated annual average ambient concentrations at or near airports of 49 trace elements attributable to aircraft most values were less than numbers. Of interest, however, are the estimates for the environmentally important metals, titanium, vanadium, and cadmium these were given as 24 ng/m , 0.12 ng/m and < 14 ng/m , respectively (56). EflForts to characterize aircraft emissions and to develop emissions factors by means of dynamometer tests are under way. One such experiment is being performed at Pratt and Whitney under contract to the Environmental Protection Agency results from this study should be available in mid-1978 (57). 

J. D. Capps, G.J. Smith, D.B. Turley, W.D. Borella, H.M. O Brian, W.F. Roby, R.J. Anderson, T.T. Engine Testing of Thermographic Phosphors Part 1. Pratt and Whitney Fixed-Blade Test and Part 2. Virginia Polytechnic Institute Turbine-Blade Test, Technical Report No. ORNL/ATD-31 Martin Marietta Energy Systems, Inc., May 1990. 

ALAN H. EPSTEIN. Mce-Chair, Pratt and Whitney, East Hartford, Coimecticut... 

Lueckel, W.J., and Eklund, L.G., "Fuel Cells in Decentralized Power Generation," Pratt and Whitney, Apr. 1972. 

JA Harris and MCV Wanderham, Properties of Materials in High Pressure Hydrogen at Cryogenic, Room, and Elevated Temperatures, NASA CR-124394, Pratt and Whitney Aircraft (report no. FR-5768) for the National Aeronautics and Space Administration (Marshall Space Flight Center), West Pahn Beach, FL, July 1973. 

E. Bernstein, J. P. Petrek, and J. Meregian, Evaluation and Performance of Once-Through, Zero-Gravity Boiler Tubes With Two-Phase Water, Pratt and Whitney Aircraft Co. 428, DWAC, Middle-town, CT, 1964. 

Watson, W., Short Time Properties of Advanced Alloys Tested at CANEL., Pratt and Whitney Aircraft- CANEL., April 20, 1965. 

BILL G.W. YEE, Pratt and Whitney, West Palm Beach, Florida... 

In this section, some illustrative results from the simulations of spray pattemation study for a Pratt and Whitney (PW) gas-turbine injector as well as turbulent reacting flow inside the combustor are presented [2, 36, 10]. 

Early in the 1960s, the aircraft and engine manufacturers Pratt and Whitney obtained a license to use Bacon s patents. With the aim of simplifying the initial design and lowering its weight, very high alkali concentrations (85% KOH) were introduced. 

In 1898, Wilhelm Ostwald proclaimed that energy supply in the future would be tied to electrochemistry and, thus, would be smoke-free. Subsequent work on fuel cells was hardly successful enough, largely—from what we know now—on account of material problems. The inevitable period of calm that followed did not end until 1959, when Francis Bacon demonstrated his fuel cell. His patents were basic for the Pratt and Whitney fuel cells and in the Apollo space flights. This situation led to the first real fuel cell boom. ... 

MOSIERSA JOHNSON ML PRATT AND WHITNEY AIRCRAFT WEST PALM BEACH FLORIDA... 

Harrington, L. C., and Rowe. G. H. (1964). PWAC-426, Pratt and Whitney Aircraft Div., United Aircraft Corp. see also DeCrescente and Miller (1964). 

Vozzella, P. A., and DeCrescente, M. A. (1965). PWAC-478, Pratt and Whitney Aircraft, Middletown, Connecticut. 

Vozzella. P. A., Miller, A. D., and DeCrescente, M. A. (1963). 4th Uranium Carbide Meeting, East Hartford, Connecticut, TID-7676, Technical Information Div., U.S.A.E.C. See also (1962). PWAC-378, Pratt and Whitney Aircraft, Middletown, Connecticut. 

Power plant Pratt and Whitney turbofan two shaft F100-PW-200F100-PW-200 FI 10- FllO-GE-100 FllO-GE-100... 

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