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:
Sep. 18, 1990
Filed:
Jan. 30, 1990
Nobuyasu Ando, Takasaki, JP;
Sanden Corporation, Isesaki, JP;
Abstract
A heat exchanger for use in an automobile air conditioning system including inlet and outlet union elements is disclosed. The heat exchanger comprises a plurality of flat tubes for conducting refrigerant and a plurality of corrugated fins fixedly sandwiched between the flat tubes. The flat tubes and the corrugated fins jointly form a heat exchange region. First and second header pipes are fixedly and hermetically connected to the flat tubes and communicate with the interior of the tubes. The header pipes are also provided with inlet and outlet union elements for connecting the heat exchanger to other external elements of the air conditioning system. Each of inlet and outlet union elements includes a rectangular parallelpiped block having a cavity formed therein. Each of the blocks is generally located at a coner of the heat exchanger defined by the top and bottom ends of the header pipes and the heat exchanger region. The cavity formed in the block allows fluid communication between the hollow interior of the header pipe and the interior of a pipe member which links the heat exchanger to external elements of the air conditioning system. The hollow interior of the flat tubes which are located in the top and bottom end portions of the heat exchange region also communicate with the cavity through holes formed in the parallelpiped block.