Apparatus and method for pumping a cryogenic fluid from a storage vessel and diagnosing cryogenic pump performance
US7913496B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2008 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Jun 20, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S417/901
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method are provided for pumping a cryogenic fluid from a storage vessel. The cryogenic fluid is pumped from the storage vessel to a heat exchanger and then to a delivery conduit. A pressure sensor measures fluid pressure in the delivery conduit. An electronic controller is programmed to monitor a signal from the pressure sensor, process the signal to determine from the measured process fluid pressure when cryogenic pump performance is degraded, and to send a signal to an operator of the apparatus indicating when the electronic controller determines that cryogenic pump performance has degraded below a predetermined threshold volumetric efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.