Patent · US Active

Cryogenic liquid expansion turbine

US9759083B2 · kind B2 · utility

1Cited by

6References

16Claims

0Family size

Assignee

Cryostar SAS · FR

Inventors

Stephane Sgambati · Illzach, FR
Frank Haensel · Glückstadt, DE

Key dates

Filing date	Oct 15, 2012
Grant date	Sep 12, 2017
Priority date	—
Expiry date	Jun 15, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B10/50
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A cryogenic liquid expansion turbine has a turbine wheel mounted on a rotary shaft, at least one radial inlet for cryogenic liquid to be expanded in the expansion turbine for the rotary shaft, and a dry gas sealing means at a position along the rotary shaft between the turbine wheel and the bearings. There is a thermal barrier member between the turbine wheel and the dry gas sealing means, a gas chamber on the dry gas sealing means side of the thermal barrier member, and an internal passage for cryogenic gas to the said gas chamber. A method is also provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.