Title:
HEAT EXCHANGER
Document Type and Number:
Japanese Patent JP2020070951
Kind Code:
A
Abstract:
To provide a heat exchanger capable of securing oil return property even in being used as a condenser and an evaporator.SOLUTION: A heat exchanger 10 includes a plurality of tubes 21, a cylindrical first tank 30 and a cylindrical second tank 40. A refrigerant flows successively through a first internal flow channel S11 of the first tank 30, a first tube 21a, the second tank 40, a second tube 21b, and a second internal flow channel S12 of the first tank 30. A flow channel formation portion 41 on which a refrigerant flow channel 410 having a cross-sectional area smaller than a cross-sectional area of the internal flow channel of the second tank 40 on a cross-section orthogonal to a longitudinal direction of the second tank 40, is formed inside of the second tank 40. The refrigerant flow channel 410 is disposed so that a projection surface observed from a longitudinal direction of the second tank 40 is overlapped to the tube 21.SELECTED DRAWING: Figure 1
Inventors:
SUGIMURA RYOHEI
TAKISE SHINICHIRO
TAKISE SHINICHIRO
Application Number:
JP2018203966A
Publication Date:
May 07, 2020
Filing Date:
October 30, 2018
Export Citation:
Assignee:
DENSO CORP
International Classes:
F28F9/02; F28F1/02
Domestic Patent References:
| JP2013061114A | 2013-04-04 | |||
| JP2015068622A | 2015-04-13 | |||
| JPH03247993A | 1991-11-06 | |||
| JP2005140374A | 2005-06-02 | |||
| JP2005241170A | 2005-09-08 |
Foreign References:
| CN101482378A | 2009-07-15 | |||
| KR20070051506A | 2007-05-18 | |||
| DE102011080673A1 | 2013-02-14 |
Attorney, Agent or Firm:
Toru Kamada
Takuma Tsuda
Takuma Tsuda