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:
Jun. 02, 1992
Filed:
Jul. 05, 1991
Hisao Kusuhara, Kyoto, JP;
Shoichi Yokoyama, Shiga, JP;
Hachiro Koma, Kusatsu, JP;
Kaoru Kato, Otsu, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Matsushita Refrigeration Company, Osaka, JP;
Abstract
A fin tube heat exchanger is used in an air conditioner or the like and comprised of a plurality of fin plates spaced at regular intervals in parallel with one another, a plurality of heat exchanger tubes arranged in at least one row and extending through the fin plates in a direction perpendicular to the direction in which the fin plates extend, a plurality of raised strips formed on each fin plate in a direction perpendicular to an air flow and raised out of their original plane, and at least one draining passage formed on each fin plate and extending along the center line of the row of the heat exchanger tubes. In this heat exchanger, air is allowed to flow between the fin plates whereas a fluid medium is allowed to pass in the heat exchanger tubes. Each raised strip has two leg portions inclined with respect to the direction of the air flow. Furthermore, the raised strips in one row near to a longitudinal edge of the fin plate are increased in number as compared with those in another row near to the center line of the row of the heat exchanger tubes. No raised strip is formed in the draining passage.