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:
Aug. 28, 2001
Filed:
Oct. 28, 1999
Shaowei Zhu, Kariya, JP;
Shin Kawano, Kariya, JP;
Masafumi Nogawa, Toyota, JP;
Tatsuo Inoue, Anjo, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A heat-regenerating type cryogenic cooling apparatus,includes a cryogenic temperature generating part,having a heat regenerator,; and a pressure generating device,connected to the part,, generating pressure vibration of a working gas therein, and having a compressor,with a discharging port,and a sucking port,, a high-pressure line,whose one end is in fluid communication with the discharging port,of the compressor,, a low-pressure line,whose one end is in fluid communication with the sucking port,of the compressor,, a high-pressure open/close valve,connected to the other end of the line,, a low-pressure open/close valve,connected to the other end of the line,, a high-pressure side line,connecting the valve,and the,, a low-pressure side line,connecting the valve,and the part,, and a high-pressure side buffer tank,as a high-pressure source connected to the midportion of the line,. At the instant of the opening of the valve,, the amount of working gas discharged therefrom is the sum of the amount of the working gas discharged from the compressor,and the amount of working gas supplied from the high-pressure side buffer tank,, which prevents lowering pressure in the line,, thereby improving the cryogenic efficiency.