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. 04, 2003
Filed:
Jul. 23, 2001
Wayne T. Bliesner, Bothell, WA (US);
Brian J. Bileau, Monroe, WA (US);
Gerald R. Fargo, Woodinville, WA (US);
Adi Thermal Power Corp., Woodinville, WA (US);
Abstract
A multi-channel thermal regenerator for a heat engine comprising a coiled annulus of thin high-temperature sheet material coiled so that individual coils are in spaced substantially parallel arrangement in an annular configuration. In one embodiment the sheet material is approximately 0.002 inch thick stainless steel embossed in a rectangular array with approximately 0.008 inch high protruding dimples that space the coils. In another embodiment the sheet material is carbon having a plurality of fibers oriented generally circumferentially around the coiled annulus providing a higher thermal conductivity in a direction along the fibers. A ceramic string is woven between the coils radially across the annulus at a plurality of locations around the annulus to space the coils. The coiled annulus is preferably contained in a cartridge having a substantially open cage base with a plurality of bars that space the end of the coiled annulus from adjacent engine structure.