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:
Mar. 09, 2010
Filed:
Oct. 24, 2007
Applicant:
Senthil Kumar Vadivelu, Bangalore, IN;
Inventor:
Senthil Kumar Vadivelu, Bangalore, IN;
Assignee:
GM Global Technology Operations, Inc., Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 53/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Hydrogen gas at a hydrogen refueling site is cooled below liquid nitrogen temperature (e.g., about 80K) for more efficient adsorption of hydrogen on hydrogen adsorbent particles in the fuel storage of a hydrogen powered vehicle. When compressed hydrogen gas is available it may be cooled with liquid nitrogen and then sub-cooled below about 70K by a Joule-Thompson expansion. When liquid hydrogen provides hydrogen gas it may be cooled below liquid nitrogen temperatures by mixing with liquid hydrogen or by heat exchange with liquid hydrogen.