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:
May. 22, 2018
Filed:
Jun. 02, 2015
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Kyosuke Nakano, Tokyo, JP;
Yoshikatsu Hiratsuka, Tokyo, JP;
SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A Stirling-type pulse tube refrigerator includes: a regenerator that has a low temperature end and high temperature end; a pulse tube that is arranged coaxially with the regenerator, and that is connected to the regenerator so as to enable working gas to circulate therebetween; a low temperature heat exchanger that is disposed in the low temperature end of the regenerator, and that has a gas flow passage serving as a flow passage for the working gas; and a flow straightener that is disposed in an end portion, on a side close to the low temperature heat exchanger, out of end portions of the pulse tube. The gas flow passage and the flow straightener are spaced away from each other, and a length of a connecting passage connecting the gas flow passage and the flow straightener is equal to or shorter than 10% of a length of the pulse tube.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile