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:
Jul. 07, 1987
Filed:
Sep. 19, 1984
Toshi Sasaki, Hitachiota, JP;
Hiromichi Yoshida, Hitachi, JP;
Shigeho Fukuda, Hitachi, JP;
Kiyoshi Oizumi, Tsuchiura, JP;
Kimio Kakizaki, Hitachi, JP;
Wataru Nakayama, Kashiwa, JP;
Takahiro Daikoku, Ushiku, JP;
Tadakatsu Nakajima, Shimoinayoshi, JP;
Yoshihiko Nakayama, Sakura, JP;
Hitachi Cable, Ltd., Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a heat transfer wall having a number of fine and elongate tunnels adjacent to each other with a minute distance under the surface thereof being in contact with liquid on the heat transfer wall, and a number of fine openings for communicating the tunnels to the outside thereof defined on ceilings of the tunnels along the longitudinal directions thereof with each minute distance, a tongue-like projection is provided which protrudes from an edge of the opening or vicinity of the opening across the opening 1 whereby a flow of fluid passing through the openings provided with the projections is controlled so that heat transfer performance characteristics are improved.