SUMMARY REPORT ON INVESTIGATION OF MINIATURE VALVELESS PULSEJETS

Abstract

Eleven sizes and configurations of miniature valveless pulsejets were built and tested to determine performance and operational characteristics and to support this report on the general state of the art. When combined with ejector type intermittent jet thrust augmenters, the best performance was achieved with the HH-Ml pulsejet with augmenters, which produced 17 lb thrust with a Tsfc of 1.8 and a thrust augmentation ratio of 1.9. Thrust-to-combustor volume ratio for this basic pulsejet was 140 lb/cubic foot. With augmenters and enclosing shroud, the complete engine package would produce 20 lb/cubic foot. Thrust-to- weight ratios approached 12 to 1. Advantages of simplicity, low cost, and high combustion efficiency and heat transfer rates due to unsteady flow, make these engines well suited for heater-blower applications as well as having some potential for thrust applications. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1964
Accession Number
AD0604028

Entities

People

  • R. M. Lockwood
  • W. G. Patterson

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Civil Engineering
  • Combustion
  • Combustion Chambers
  • Combustion Products
  • Combustors
  • Contracts
  • Energy
  • Flow Rate
  • Fuel Injection
  • Fuel Systems
  • Geometry
  • Heat Transfer
  • Ignition
  • Ignition Systems
  • Materials
  • Measurement

Readers

  • Aerospace Engineering
  • Combustion and Flow Dynamics.