Development of a Lightweight Hydraulic Starter System for an Airborne Auxiliary Power Unit.
Abstract
A report is made of the design study, fabrication and testing of an advanced high pressure hydraulic starting system suitable for use on a high powered lightweight auxiliary power unit (ADP). The purpose of the study was to develop the smallest lightest possible hydraulic starting system for a 400 HP APU being developed under Air Force Contract F33615-69-C-1100. Key development items were: (1) an 8000 psi helium pressurized metal bellows accumulator using a high strength steel shell with carbon fiber Epoxy composite overwrap; (2) an 8000 psi hydraulic motor and hydraulic intensifier unit utilizing only one hydraulic unit; and (3) a hydraulic flow sensing starter cutout valve requiring no electrical inputs. The report describes the design rationale in selecting parameters and specific hardware to build an operating system as well as actual test results. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1973
- Accession Number
- AD0768200
Entities
People
- Richard W. Reynolds
- Stephen C. Paskevich
- Walter J. Iseman