Loading patent…
AssigneeShowa Denko K.K.
InventorsYoshihiko Seno, Osamu Kamoshida, Takayuki Yasutake
Estimating the term…
Fixed to the peripheral wall of a header 2 of a unit-type heat exchanger 1 is a receiver connecting block 6 having channels 31, 32 for causing the interior of the header 2 to communicate with the interior of a liquid receiver 7 therethrough. The block 6 and the liquid receiver 7 have respective fixing portions 32, 36 and respective contact faces 22a, 36a each provided on the fixing portion. The outer peripheral surfaces of the fixing portions 22, 36 have respective contours of the same shape and the same size. The liquid receiver 7 is fixed to the block 6 with the contact faces 22a, 36a of the fixing portions 22, 36 in intimate contact with each other. A tubular seal member 42 having rubber elasticity is liquid-tightly fitted around the fixing portions 22, 36. The seal member 42 has an inner shape smaller than the contours of the outer peripheral surfaces of the fixing portions 22, 36 and is fitted as elastically deformed around the fixing portions 22, 36. Rainwater or the like can be prevented from ingressing into an interstice between the contact faces of the block and the liquid receiver.
A heat exchanger comprising a pair of headers extending upward or downward and spaced apart from each other, a plurality of refrigerant tubes arranged one above another in parallel at a spacing between the pair of headers and having opposite ends joined to the respective headers, fins arranged between respective adjacent pairs of refrigerant tubes, and a liquid receiver fixed to one of the headers,
A refrigerant passage portion connecting structure for a refrigeration cycle comprising two blocks each having a channel communicating with a refrigerant passage portion of the refrigeration cycle, the two blocks having respective fixing portions and respective contact faces each provided on the fixing portion and to be positioned in intimate contact with each other, the channel having one end opened in the contact face, the two blocks being fastened together with the contact faces of their fixing portions in intimate contact with each other and with their channels communicating with each other, a seal member being liquid-tightly provided around outer peripheral surfaces of the fixing portions of the two blocks so as to cover a boundary between the contact faces of the fixing portions.
A refrigerant passage portion connecting structure for a refrigeration cycle comprising a first block having a channel communicating with a refrigerant passage portion of the refrigeration cycle, a pipe having an end portion fittable into the channel of the first block and connectable to the first block, and a second block for fixing the pipe to the first block, the two blocks having respective fixing portions and respective contact faces each provided on the fixing portion and to be positioned in intimate contact with each other, the two blocks being fastened together with the contact faces of their fixing portions in intimate contact with each other and with the pipe end portion fitted in the channel of the first block, a seal member being liquid-tightly provided around outer peripheral surfaces of the fixing portions of the two blocks so as to cover a boundary between the contact faces of the fixing portions.
Dependencies are inferred from the claim text.