Title:
HEAT EXCHANGER AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2023152615
Kind Code:
A
Abstract:
To provide a heat exchanger which can suppress a flow of the other fluid from being hindered in the vicinity of an entrance/exit of a flow passage, and its manufacturing method.SOLUTION: A radiator 1 comprises a core part 3, and a refrigerant flow passage 5a and an air flow passage 7 which are arranged at the core part. Cooling water flowing in the refrigerant flow passage 5 and air flowing in the air flow passage 7 perform a heat exchange via a bulkhead 54. The refrigerant flow passage 5 comprises a plurality of main flow passages 51 located so as to be aligned in a prescribe direction, an introduction chamber 52 communicating with the plurality of main flow passages 51, and extending in the prescribed direction, and a discharge chamber 53 communicating with the plurality of main flow passages 51, and extending in the prescribed direction. Each of the main flow passages 51 has an introduction-side shape change zone 55 in which the shape of a prescribed flow passage cross section gradually changes toward the introduction chamber 52 and is linearly connected to the adjacent main flow passage 51, and a discharge-side shape change zone 56 in which the shape of a prescribed flow passage cross section gradually changes toward the discharge chamber 53 and is linearly connected to the adjacent main flow passage 51.SELECTED DRAWING: Figure 8
Inventors:
ENDO TSUNEO
KUROSAWA YUTA
KUROSAWA YUTA
Application Number:
JP2022173685A
Publication Date:
October 17, 2023
Filing Date:
October 28, 2022
Export Citation:
Assignee:
HONDA MOTOR CO LTD
International Classes:
F28D7/08; F28D21/00; F28F13/12
Attorney, Agent or Firm:
Patent Attorney Corporation Koei Office