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Patent Searching and Data


Title:
HEAT EXCHANGER PIPE HAVING GROOVES FORMED IN INNER PERIPHERY THEREOF
Document Type and Number:
Japanese Patent JPH0979778
Kind Code:
A
Abstract:

To provide a heat exchanger pipe for an air conditioner with grooves in an inner surface thereof which can very easily formed and has an enhanced heat transfer performance.

The title heat exchanger pipe for an air conditioner has in an inner surface thereof a large number of parallel slant grooves 1 having an inclination with respect to a longitudinal direction, and a less number of straight grooves 2 as compared with the number of the slant grooves 1 are provided in such a manner as to be spaced apart from each other in a peripheral direction of the pipe. Depth of the straight groove 2 is smaller than that of the slant groove 1 and the slant groove 1 is formed in such a manner that the slant groove 1 does not exist in the straight groove 2.


Inventors:
UNO HARUZO
HAGIWARA HISAO
ONISHI JUN
Application Number:
JP26622895A
Publication Date:
March 28, 1997
Filing Date:
September 19, 1995
Export Citation:
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Assignee:
TOYO RADIATOR CO LTD
International Classes:
F28F1/40; (IPC1-7): F28F1/40
Attorney, Agent or Firm:
Kubota Takumi