Fan powered aftercooler and control circuit for locomotive compressors having no integral aftercooler
US5894881A · kind A · utility
7Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1997 |
| Grant date | Apr 20, 1999 |
| Priority date | — |
| Expiry date | Mar 31, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T17/004
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electrical circuit for controlling the operation of a fan cooled aftercooler receiving pressurized air from a compressor located in a locomotive. The circuit includes a motor for driving the fan of the aftercooler, an electrical relay comprising a coil and contacts operated by the coil, and a temperature sensitive switch connected in electrical series with the coil. The contacts of the relay are connected in electrical series with the motor. The temperature sensitive switch is effective to open the circuit of the coil and thereby open the contacts to stop operation of the fan when ambient temperature falls to or below freezing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.