Method of operating a transport refrigeration unit
US5123253A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1991 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | Jul 11, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B19/10
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method of operating a transport refrigeration unit having electrical control which includes a display, including the steps of detecting the occurrence of predetermined events in the transport refrigeration unit, and classifying at least certain of them into first, second and third categories of fault conditions, and into a fourth category related to maintenance associated events. When a first category fault occurs, the unit is shut down, a visual alarm is flashed, and the nature of the fault is immediately identified. When a second category fault occurs, a visual alarm is steadily energized, and the nature of the fault if immediately identified. When third category faults and fourth category events occur, they are stored and periodically displayed, with the display respectively identifying the nature of the fault and the type of maintenance event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.