30,000-Rpm Vane-Pump Demonstration.
Abstract
The purpose of this project was to demonstrate the capability of new vane-pump concepts to meet future aircraft requirements. The specific objective was the development of a pressure-compensated hydraulic pump that would deliver 45 gpm at 4000 psi while operating at 30,000 rpm with MIL-H-5606B hydraulic fluid. The concepts were the product of a previous Air Force program and included a pivoting-tip vane for hydrodynamic load support and a two-lobed deformable cam ring for variable displacement. In critical experiments, pivoting-tip vanes were operated satisfactorily at the rated conditions of temperature, speed, and pressure. A pump with solid cam rings was operated a total of 27.6 hours at 30,000 rpm and 0.4 hours at 3300-psi discharge pressure. The pump with deformable cam rings was operated a total of 62 hours including 9.4 hours at 25,000 rpm, 10.6 hours at 30,000 rpm, and 1 hour at 3000-psi discharge pressure. A pressure compensator with inherent temporary droop was conceived, and laboratory development was started. Continued development is recommended to correct deformable-cam-ring deficiencies to enable determination of pump efficiency and durability. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1972
- Accession Number
- AD0739936
Entities
People
- David L. Thomas
- Harry T. Johnson
- J. Philip Dechow
- Robert K. Catterson
- Robert K. Mitchell
Organizations
- Battelle Memorial Institute