Method and device for rapid oil heating for oil-lubricated expansion machines
US10202872B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2012 |
| Grant date | Feb 12, 2019 |
| Priority date | — |
| Expiry date | Feb 2, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF22B1/1815
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method for lubricant heating during starting up of a thermodynamic cycle device, wherein the cycle device comprises a working medium with a working substance and a lubricant, an evaporator for evaporating the working substance, a lubricant separator for separating at least part of the lubricant from the working medium which is supplied by the evaporator, an expansion machine which is to be lubricated with the lubricant, and a condenser device with a condenser, and wherein the method comprises the following steps: delivery of lubricant from the lubricant separator to the condenser device and/or to the evaporator during shutdown of the cycle device, as a result of which a working medium which is enriched with lubricant is provided in the condenser device and/or in the evaporator; and heating of the working medium which is enriched with lubricant in the evaporator during starting up of the cycle device. Furthermore, the invention relates to a thermodynamic cycle device which comprises means for delivering lubricant from the lubricant separator to the condenser device and/or to the evaporator during shutdown of the cycle device, as a result of which a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.