Accession Number:

ADA801412

Title:

Endurance Tests of a 22-Inch-Diameter Pulse-Jet Engine with a Neoprene-Coated Valve Grid

Corporate Author:

AIRCRAFT ENGINE RESEARCH LAB CLEVELAND OH

Report Date:

1945-10-01

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.

Descriptive Note:

Wartime rept.

Pages:

0014

Identifiers:

Communities Of Interest:

Distribution Statement:

Approved for public release; distribution is unlimited.

File Size:

1.35MB