Back to results
US 12,007,183 B2Granted
Heat exchanger
AssigneeDenso Corporation
InventorsYusuke Takagi, Kenshiro Muramatsu, Satoshi Nita
Life of this patent
Estimating the term…
Abstract
A heat exchanger includes a fin arranged in a first passage and a tubular tank portion formed so as to penetrate plate members stacked in a stacking direction. An inflow port is formed in a peripheral wall of the tank portion to allow a refrigerant to flow into the first passage. When the fin is arranged in a fin installation portion in the first passage, a passage reduction portion is formed at the inflow port and is narrower than a width of the fin installation portion in the stacking direction.
Claims4
A heat exchanger comprising:
- a plurality of plate members stacked with each other in a stacking direction so as to define a plurality of first passages and a plurality of second passages, heat being exchanged between a refrigerant flowing through the first passage and a fluid flowing through the second passage;
- a fin arranged in a fin installation portion in the first passage;
- and
- a tubular tank portion formed to penetrate the plurality of plate members in the stacking direction, wherein
- each of the plate members includes two plates joined with each other,
- each of the two plates has a burring portion to form a peripheral wall of the tank portion,
- an inflow port is formed between two burring portions of the two plates so as to allow the refrigerant to flow into the first passage,
- a passage reduction portion is formed at the inflow port, and is narrower than a width of the fin installation portion in the stacking direction, and
- one of the two plates includes a first protrusion located adjacent to a first burring portion, the other of the two plates includes a second protrusion located adjacent to a second burring portion, and the first protrusion and the second protrusion are joined to each other.
6 more elements
Dependencies are inferred from the claim text.