Method and system for a portable refrigerant recovery unit load controller
US9175891B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2012 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Jan 9, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2700/151
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A system and methods associated therewith for providing a load controller for a refrigerant recovery unit are disclosed. The load controller can be controlled to operate when the current drawn by the motor increases due to pressure changes caused by abnormal refrigerant flow or during activation of the motor in order to lower the pressure. In some aspects of the present disclosure, the load controller can lower the pressure by recirculating some of the pressure load through the opening of a compressor bypass loop line. In some embodiments, the current/pressure load may be monitored during the operation of the refrigerant recovery unit and set to act as an emergency shut off and alert system to the user when the system malfunctions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.