公开(公告)号：AU5613186A

公开(公告)日：1986-10-23

申请号：AU5613186

申请日：1986-04-15

Applicant: MATSUSHITA ELECTRIC IND CO LTD ,  MATSUSHITA REFRIGERATION COMPANY

Inventor： TANAKA HIROYOSHI ,  TSUDA YOSHIYUKI ,  ANDO TOSHIAKI ,  ADACHI MASAAKI ,  NISHIWAKI HUMITOSHI ,  AOYAMA SHIGEO

IPC: F28F1/32 ,  F28D1/053

Abstract: Disclosed is a heat exchanger having a plurality of flat fins disposed in parallel at predetermined intervals and adapted such that the air flows therebetween and a plurality of heat-transfer tubes disposed to intersect at right angles with the plurality of fins and adapted such that a fluid flows therethrough. The heat-transfer tubes are arranged such that a line connecting the adjacent heat-transfer tubes in the longitudinal direction of the fin is perpendicular to the direction of the air flow. The projection area in the direction of the air flow of any of the heat-transfer tubes located on the upstream side with respect to the air flow partially overlaps the position of at least one of the heat-transfer tubes disposed on the downstream side thereof. The pitch of adjacent heat-transfer tubes is smaller in the direction perpendicular to the air flow than in the direction of the air flow. Such an arrangement excells in both the frosting characteristics and performance.

公开(公告)号：AU4885197A

公开(公告)日：1999-05-31

申请号：AU4885197

申请日：1997-11-06

Applicant: MATSUSHITA REFRIGERATION COMPANY

Inventor： NAKAMOTO HIDEO ,  TSUDA YOSHIYUKI ,  YUASA AKIKO

IPC: C08G18/82 ,  C08J9/00 ,  C08J9/12

Abstract: The thermal insulating foamed material 4 comprises a foamed polyurethane resin composition having closed cells filled with a volatile blowing agent, and having an alkali metal carbonate 7 or an alkaline-earth metal carbonate 7, formed by a reaction of an alkali metal hydroxide or an alkaline-earth metal hydroxide with carbon dioxide, and a water adsorbent 10 having a moistened water-absorbing substance 8 covered with a resinous coating film 9, enclosed in said thermal insulating foamed material 4, respectively.

公开(公告)号：AU5715086A

公开(公告)日：1986-11-13

申请号：AU5715086

申请日：1986-05-05

Applicant: MATSUSHITA ELECTRIC IND CO LTD ,  MATSUSHITA REFRIGERATION COMPANY

Inventor： OBATA MAKOTO ,  YOKOYAMA SHOICHI ,  TANAKA HIROYOSHI ,  TSUDA YOSHIYUKI ,  KATO KAORU ,  AOYAMA SHIGEO

IPC: F28F1/32 ,  F28D1/053

Abstract: Disclosed is a heat exchanger arranged such that a plurality of groups of cuttouts are formed on the surfaces of flat fins as between vertically adjacent heat transfer tubes by providing a plurality of cutouts, including two openings extending transverse to the direction of the air flow and two legs nonparallel with said direction of the air flow, on the front and reverse sides of the flat fins. This arrangement remarkably reduces the heat resistance between the air and the fin surfaces. Since the plurality of cutouts or the plurality of groups of cutouts are formed in the identical configuration, maintenance of a mold can be facilitated.