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.

Date of Patent:
Apr. 19, 1988

Filed:

Jan. 07, 1987
Applicant:
Inventors:

Shinichi Tamba, Kakogawa, JP;

Hitomi Miyake, Kobe, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165173 ; 165178 ; 165 71 ; 165917 ; 123 4154 ;
Abstract

An improved horizontal type radiator is disclosed in which the top wall of a header tank, into which a bank of radiator tubes are opened, is externally raised into an annular bulge formed to encircle an upper pipe hole bored in the wall through which a water filling pipe is inserted into the header tank forming an annular space about the inserted lower end of the pipe. Also, the bottom wall of the header tank is outwardly bulged into an annular bulge formed to encircle a lower pipe hole bored in the wall through which a water passage pipe is inserted into the header tank forming an annular space about the inserted end portion of the water passage pipe. With this arrangement, in operation when the water flows from the radiator tubes into the header tank, the water has limited chance of entraining air within the header tank, since the upper annular space in which air may possibly be entrained offers only a minimum contact surface of air with the water. Thus, deterioration of performance, abnormal noise and vibration in the system as can be brought about by the entrance of air can be obviated. Furthermore, when the radiator has to be emptied for maintenance or storage, almost all the inside water can be expelled, except for a very little amount that might be left undrained within the small lower annular space. Thus, long-term storage of a radiator is possible, without corrosion.


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