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:
Oct. 27, 2009
Filed:
Sep. 10, 2004
Yoshinobu Ichikawa, Isesaki, JP;
Jeong-il Park, West Lafayette, IN (US);
Douglas E. Adams, West Lafayette, IN (US);
Yoshinobu Ichikawa, Isesaki, JP;
Jeong-Il Park, West Lafayette, IN (US);
Douglas E. Adams, West Lafayette, IN (US);
Purdue Research Foundation, West Lafayeete, IN (US);
Sanden Corporation, Isesaki-shi, Gunma, JP;
Abstract
A multi-cylinder reciprocating compressor includes a cylinder block provided with a plurality of pistons each for performing a working fluid suction stroke and a working fluid compression/discharge stroke, and a cylinder head arranged adjacent to the cylinder block. The cylinder head defines therein a discharge chamber and an annular suction chamber surrounding the discharge chamber and has a plurality of cross walls arranged at intervals in a circumferential direction thereof. The cross walls reduce the cross-sectional flow area of the suction chamber.