The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 15, 1986
Filed:
Aug. 07, 1984
Kazuo Someya, Kudamatsu, JP;
Yasuo Tasaka, Kudamatsu, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A gas liquefying system of the type in which a compressed gas is divided into a part which is to be used for the generation of cold heat and a part which is to be liquefied, the part of the gas for generation of cold heat being introduced into a high-pressure expansion turbine to generate the cold heat and, after an adjustment of the temperature thereof at the outlet of the high-pressure expansion turbine, supplied to a low-pressure expansion turbine to further generate the cold heat while becoming the returning gas of a low temperature, the returning gas being supplied to a liquefier to liquefy the part of gas to be liquefied. The system comprises a temperature controlling means disposed in a pipe connected between the outlet of the high-pressure expansion turbine and the inlet of the low-pressure expansion turbine and adapted to raise the temperature of the gas at the outlet of the high-pressure expansion turbine, and means for adjusting the flow rate of the gas introduced to the temperature controlling means in response to the gas temperature at the inlet or the outlet of the low-pressure expansion turbine thereby optimumly regulating the gas temperature at the outlet of the low-pressure expansion turbine.