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Advanced High Speed Fuel Pumps For Small Gas Turbine Engines
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Book Synopsis Advanced High-speed Fuel Pumps for Small Gas-turbine Engines by : Harry T. Johnson
Download or read book Advanced High-speed Fuel Pumps for Small Gas-turbine Engines written by Harry T. Johnson and published by . This book was released on 1969 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The object of the program was to develop the technology necessary for vane-pump operation at turbine rotational speeds. Major hardware emphasis was devoted to the evaluation of a high-speed fuel pump based upon this technology. A single-lobe vane pump with a centrifugal charging stage was designed and successfully operated at 40,000 rpm pumping JP-4 turbine fuel. The vane pump relies upon the use of a hydrodynamically lubricated pivoting vane tip to support vane assembly radial loading. The hydrodynamic film allows a significant increase in tip surface speed without sacrificing the required endurance life. A 200-hour endurance run at speeds from 24,000 to 40,000 rpm was successfully completed with no noticeable performance degradation. Successful contamination experiments were performed after completion of 175 hours of the endurance schedule. The contamination experiments were not extensive, but they verified that the design concepts were not unduly sensitive to contaminated fuel. Continued development will be required to establish life capability at the design pressure of 650 psig, but short-term capability was established at outlet pressures up to 600 psig. No major limitations with the basic pump design were found. The 50,000-rpm goal appears to be feasible, but further evaluation at speeds above 40,000 rpm was terminated due to bearing problems in the laboratory speed-increaser system. (Author).
Book Synopsis Design and Evaluation of Advanced High-Speed Fuel Pump by : Harry T. Johnson
Download or read book Design and Evaluation of Advanced High-Speed Fuel Pump written by Harry T. Johnson and published by . This book was released on 1971 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this program was to develop both the technology and the experimental hardware to experimentally demonstrate that a main-engine fuel pump could be operated at turbine-engine shaft speeds. A single-lobe vane pump has been designed and successfully operated at speeds up to 49,500 rpm and outlet pressures up to 900 psig while pumping JP-4 turbine fuel. The promosing capabilities demonstrated by this pump were the result of the successful application of hydrodynamic lubrication techniques to the vane design. The pivoting vane tip concept incorporated permits tip surface speeds up to 180 fps to be achieved without producing high mechanical power losses or sacrificing the pump endurance capabilities. The present experimental fuel pump represents a significant step toward the development of flight hardware capable of operating at engine shaft speed. It meets the basic performance requirements of a main-engine fuel pump typically required on small, highspeed gas-turbine engines. In addition, it appears that a variable-displacement capability could be developed directly from the present hardware without altering the established high-speed capabilities. (Author).
Download or read book ASME 69-GT-45 written by H. T. Johnson and published by . This book was released on 1969 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309440998 Total Pages :123 pages Book Rating :4.3/5 (94 download)
Book Synopsis Commercial Aircraft Propulsion and Energy Systems Research by : National Academies of Sciences, Engineering, and Medicine
Download or read book Commercial Aircraft Propulsion and Energy Systems Research written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-08-09 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary human activities that release carbon dioxide (CO2) into the atmosphere are the combustion of fossil fuels (coal, natural gas, and oil) to generate electricity, the provision of energy for transportation, and as a consequence of some industrial processes. Although aviation CO2 emissions only make up approximately 2.0 to 2.5 percent of total global annual CO2 emissions, research to reduce CO2 emissions is urgent because (1) such reductions may be legislated even as commercial air travel grows, (2) because it takes new technology a long time to propagate into and through the aviation fleet, and (3) because of the ongoing impact of global CO2 emissions. Commercial Aircraft Propulsion and Energy Systems Research develops a national research agenda for reducing CO2 emissions from commercial aviation. This report focuses on propulsion and energy technologies for reducing carbon emissions from large, commercial aircraftâ€" single-aisle and twin-aisle aircraft that carry 100 or more passengersâ€"because such aircraft account for more than 90 percent of global emissions from commercial aircraft. Moreover, while smaller aircraft also emit CO2, they make only a minor contribution to global emissions, and many technologies that reduce CO2 emissions for large aircraft also apply to smaller aircraft. As commercial aviation continues to grow in terms of revenue-passenger miles and cargo ton miles, CO2 emissions are expected to increase. To reduce the contribution of aviation to climate change, it is essential to improve the effectiveness of ongoing efforts to reduce emissions and initiate research into new approaches.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gas Turbine Pumps by : Charles W. Grennan
Download or read book Gas Turbine Pumps written by Charles W. Grennan and published by . This book was released on 1972 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis HIGH PERFORMANCE BULK FUEL PUMPS. by : MARINE CORPS LANDING FORCE DEVELOPMENT CENTER QUANTICO VA.
Download or read book HIGH PERFORMANCE BULK FUEL PUMPS. written by MARINE CORPS LANDING FORCE DEVELOPMENT CENTER QUANTICO VA. and published by . This book was released on 1963 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: Efforts were directed to test higher capacity pumps to determine their effect on transfer rates and the distance that fuel could be pumped. The two pumps used in this evaluation were a 600 gpm at 125 psi pump driven by a gas turbine and a 500 gpm at 150 psi pump driven by a diesel engine. Conclusions. Gas turbine powered pumps are not suitable for use in the AAFS at this time because of: High fuel consumption, High initial costs, High maintenance costs, Lack of speed control, Requirement for specially trained maintenance personnel. (Author).
Download or read book Army Research and Development written by and published by . This book was released on 1963 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NBS Special Publication written by and published by . This book was released on 1973 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydraulic Research in the United States and Canada by :
Download or read book Hydraulic Research in the United States and Canada written by and published by . This book was released on 1972 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydraulic Research in the United States and Canada, 1972 by : Gershon Kulin
Download or read book Hydraulic Research in the United States and Canada, 1972 written by Gershon Kulin and published by . This book was released on 1974 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1966 with total page 1464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications, Cumulative Index by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications, Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SAE Technical Paper Series written by and published by . This book was released on 1970 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: Online version: Technical papers portion of the SAE Digital Library references thousands of SAE Technical Papers covering the latest advances and research in all areas of mobility engineering including ground vehicle, aerospace, off-highway, and manufacturing technology. Sample coverage includes fuels and lubricants, emissions, electronics, brakes, restraint systems, noise, engines, materials, lighting, and more. Your SAE service includes detailed summaries, complete documents in PDF, plus document storage and maintenance
Download or read book Aeronautical Engineering written by and published by . This book was released on 1991 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Inventory of Energy Research by : Oak Ridge National Laboratory
Download or read book An Inventory of Energy Research written by Oak Ridge National Laboratory and published by . This book was released on 1972 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
