Endurance Tests of a 22-Inch-Diameter Pulse-Jet Engine with a Neoprene-Coated Valve Grid
Abstract
Thrust-stand tests were conducted at high thrust outputs to determine the operating life of a 22-inch-diameter pulse-jet engine equipped with a neoprene-coated valve grid. The results of the endurance tests show that through the use of the neoprene-coated grid the operating life of the pulse-jet engine, as limited by valve deterioration, was extended to more than 164 minutes, as compared with 30 minutes for the standard uncoated grid. The average jet thrust (not deducting the momentum drag of the entering air) developed by the engine was 855 pounds at a simulated ram pressure of 58 inches of water and a fuel flow of 2800 pounds per hour; no decrease in thrust was obtained during the entire 164 minutes of operation. This jet-thrust valve represents a slight reduction in performance from the average 890 pounds of thrust obtained with the standard valve grid under similar operation conditions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1945
- Accession Number
- ADA801412
Entities
People
- Eugene J. Manganiello
- John H. Breisch
- Michael F. Valerino
Organizations
- Glenn Research Center