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:
Dec. 26, 2006
Filed:
Jun. 14, 2004
Steven M. Kuznicki, Edmonton, CA;
Wayne Scott Kaboord, Mequon, WI (US);
Roger James Briggs, Colgate, WI (US);
Richard Randel Lyman, Jr., Chaska, MI (US);
Orhan Talu, Richmond Heights, OH (US);
Edward John Hummelt, Greenfield, WI (US);
Steven M. Kuznicki, Edmonton, CA;
Wayne Scott Kaboord, Mequon, WI (US);
Roger James Briggs, Colgate, WI (US);
Richard Randel Lyman, Jr., Chaska, MI (US);
Orhan Talu, Richmond Heights, OH (US);
Edward John Hummelt, Greenfield, WI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
The invention relates to a fluid power accumulator in which the fluid undergoes a state change as the system is pressurized to store energy. A state change can be a phase change, a chemical reaction, or a combination of these. Generally the state change results from the interaction of a compressible fluid contained in the accumulator with another substance, which can be a fluid or a solid. Preferably, the state change includes the physical adsorption of a fluid by a solid adsorbant. The invention can improve the energy storage density of a fluid power accumulator, allow a given energy storage density to be achieved at a lower maximum pressure, facilitate heat transfer and storage within an accumulator, and/or improve accumulator efficiency by storing energy in a form other than thermal energy, such as in the form of chemical energy.