Real time recall feature for an engine data processor system
US4621335A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 1983 |
| Grant date | Nov 4, 1986 |
| Priority date | — |
| Expiry date | May 31, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D9/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A real-time recall feature for an engine data processor (20). An engine mounted data processor (20) inputs a plurality of engine operating parameters from a gas turbine engine (10). These parameters are fault checked and reformatted by the processor (20) before being output on a serial transmission channel (XCH) to an airframe mounted permanent recording apparatus (30). A set of the most recent engine profiles are stored in a dynamic random access memory (DRAM) which is constantly updated by overlaying the oldest data with the most recent. A switch (52) generates a signal (FRZ) to terminate storage of the profiles and freeze the contents of the (DRAM). The memory remains frozen having captured the most recent engine profiles associated with the generation time of the signal (FRZ) until unloaded over the channel (XCH) to recorder (30). The output of the (DRAM) is in response to a signal (RPL) generated by switch (52).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.