30,000-RPM Vane-Pump Demonstration

An answer to the start-up problem involving the pivoting tips and the soft indium-lead-silver-plated cam surface was confirmed experimentally. Changes include antirotation stops on the vanes and a chamfer on the leading edge of the pivoting tip. Successful speed runs were conducted with the variable...

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Bibliographische Detailangaben
Hauptverfasser:	Thomas, David L, Dechow, J P, Catterson, Robert K, Herridge, J T, Johnson, H T
Format:	Report
Sprache:	eng
Schlagworte:	AIRCRAFT EQUIPMENT CAMS DEFORMABLE CAM RINGS DEFORMATION ELECTRON BEAM WELDING HYDRAULIC PRESSURE PUMPS LAMINATES MANDRELS MANUFACTURING PERFORMANCE(ENGINEERING) Pumps, Filters, Pipes, Tubing, Fittings & Vlvs RINGS TEST METHODS TURBINE DRIVEN PUMPS TURBINES VANE PUMPS
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Beschreibung
Zusammenfassung:	An answer to the start-up problem involving the pivoting tips and the soft indium-lead-silver-plated cam surface was confirmed experimentally. Changes include antirotation stops on the vanes and a chamfer on the leading edge of the pivoting tip. Successful speed runs were conducted with the variable-displacement pump to 29,000 rpm, but were interrupted by bearing failures. The high-speed drive was redesigned to eliminate the cause of the bearing failures. Considerable progress has been achieved with electron-beam welding and lamination-wrapping studies in the program to evolve a technique for developing deformable cam rings. See also Interim technical rept. no. 6, AD871732.