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.

Date of Patent:
Oct. 29, 2013

Filed:

Apr. 22, 2011
Applicant:

Haruo Nakamura, Wako, JP;

Inventor:

Haruo Nakamura, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02G 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A thermoacoustic engine includes first and second stacks disposed in parallel in a looped tube and a heat storage unit disposed in the looped tube. A circuit length between a center of the first stack and a center of the heat storage unit is equal to a circuit length between a center of the second stack and the center of the heat storage unit. A first acoustic circuit including the first stack and the heat storage unit has a circuit length which is equal to a circuit length of a second acoustic circuit including the second stack and the heat storage unit.


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