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. 21, 2007
Filed:
Dec. 24, 2002
Katsumi Shimizu, Takatsuki, JP;
Naoki Nishi, Wakayama, JP;
Haruhiko Murakami, Hirakata, JP;
Toshiaki Hosono, Osaka, JP;
Katsumi Shimizu, Takatsuki, JP;
Naoki Nishi, Wakayama, JP;
Haruhiko Murakami, Hirakata, JP;
Toshiaki Hosono, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
Through stroke control whereby the stroke of a piston is detected and controlled to be equal to a target stroke, the piston is prevented from colliding with a displacer, and the refrigerating performance of a Stirling refrigerator is enhanced. Different target strokes corresponding to different operation conditions of the Stirling refrigerator are stored in a storage portion in a control box, so that a linear motor can be driven with a target stroke that suits the current operation condition. Thus, the piston is prevented from colliding with a displacer, and the refrigerating performance of a Stirling refrigerator is further enhanced.