The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 25, 1986
Filed:
Dec. 28, 1982
David M Rosenbush, Granby, CT (US);
Philip E Zwicke, South Glastonbury, CT (US);
Robert P Couch, Palm Beach Gardens, FL (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
Equipment which analyzes the wave shapes (FIGS. 57-80) of signals derived from electrostatic probes (1, 2, 3, 27) disposed in the gas stream of a gas turbine engine operates differently in dependence upon different engine conditions. When surge is detected (1, 90-93, FIG. 1) the signal records are stored away specially (FIGS. 8 and 8b) and classified specially (FIGS. 8c, 9, 9a and 9b) when a request therefor (93-95, FIG. 1) is made. Acceleration signals (FIG. 80) are looked for (FIG. 12) only when there is significant engine acceleration (FIG. 4). Only nozzle liner erosion (FIG. 69) is looked for (FIG. 12) when the afterburner is lit (89, FIG. 1), in one probe (3, FIG. 1) while at the same time afterburner rumble (FIG. 80) is looked for in a flameholder probe (27, FIG. 1) when the afterburner is lit. When the afterburner fuel is being chopped (FIG. 4a) only afterburner chop signals (FIGS. 77-79) are looked for (FIG. 12). When the engine speed is below idle, no records of signals are made (FIG. 8).