Two speed control for mobile refrigeration generators
US8487458B2 · kind B2 · utility
40Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2008 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Sep 22, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2700/14
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A current sensor is installed in a generator set to measure the current being delivered from the generator set to a refrigeration unit. A control is responsive to the current transformer to reduce the speed of the drive engine to a lower speed when the current being delivered to the refrigeration unit is determined to be below a predetermined higher level. Provision is made to override the system when the sensed current is determined to be transient caused or in the event that ambient temperature is determined to be above a predetermined temperature threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.