JP-7855608-B2 - heat exchanger

JP7855608B2JP 7855608 B2JP7855608 B2JP 7855608B2JP-7855608-B2

Inventors

山田達人
唐澤俊一
笹野郷司

Assignees

東京濾器株式会社

Dates

Publication Date: 20260508
Application Date: 20211129

Claims (10)

A first plate having a first surface in contact with a heat transfer medium, the first surface having a plurality of linearly extending first protrusions , A second plate having a second surface in contact with the heat transfer medium, the second surface having a plurality of linearly extending second protrusions. Equipped with, The first surface faces the second surface, The first projection has a point-like projection, The second projection has a dot-shaped recess that forms a joint together with the dot-shaped projection. heat exchanger.
The heat exchanger according to claim 1, wherein each of the plurality of first protrusions extends so as to intersect with the direction of flow of the heat transfer medium.
The first surface is divided into a first region and a second region, which extend in the direction of the flow of the heat transfer medium, The heat exchanger according to claim 1 or 2, wherein, of the plurality of first protrusions, the protrusion in the first region and the protrusion in the second region extend in directions that intersect each other.
The first plate further comprises an opposite surface on the opposite side of the first surface, which comes into contact with the fluid that performs heat exchange with the heat transfer medium, The heat exchanger according to any one of claims 1 to 3, wherein a plurality of linearly extending grooves are formed on the opposite surface.
The heat exchanger according to claim 4 , wherein each of the plurality of grooves extends so as to intersect with the direction of fluid flow.
The opposite surface is divided into a third region and a fourth region, respectively, which extend in the direction of the fluid flow. The heat exchanger according to claim 4 or 5, wherein, of the plurality of grooves, the groove in the third region and the groove in the fourth region extend in directions that intersect each other.
The heat exchanger according to any one of claims 4 to 6 , further comprising a diffusion member that diffuses the flow of the heat transfer medium or the fluid, and which is in contact with at least one of the plurality of first protrusions and the opposite surface.
The heat exchanger according to any one of claims 4 to 7 , wherein the plurality of first protrusions overlap with the plurality of grooves when viewed from a direction perpendicular to the first surface.
The heat exchanger according to any one of claims 1 to 8, wherein at least one of the plurality of first protrusions is in contact with the plurality of second protrusions.
Each of the aforementioned multiple first protrusions extends in a direction intersecting with the aforementioned multiple second protrusions. A heat exchanger according to any one of claims 1 to 9 .

Description

This invention relates to a heat exchanger. There is a heat exchanger in which multiple plate members are stacked to form alternating channels for gas or oil and channels for cooling water in the direction of stacking the plate members (Patent Document 1). Patent No. 4527557 This is a schematic diagram showing one of the heat exchange systems.This is a perspective view of oil cooler 2.This is an exploded view of oil cooler 2.This is an exploded view of plate assembly 60.This is an exploded view of the joint where two plate assemblies 60 are stacked on top of each other.This is a top view of the mail plate 100.This is a bottom view of the mail plate 100.This is a top view of the female plate 110.This is a bottom view of the female plate 110.This is a top view of plate assembly 60.This is a cross-sectional view of plate assembly 60.This is a schematic diagram showing the flow of cooling water.This is a schematic diagram showing the flow of oil.This is a perspective view of the oil cooler 2 in modified example 18. The embodiments of the present invention will now be described with reference to the drawings. However, the embodiments described below are subject to various technically preferred limitations for carrying out the present invention, but the scope of the present invention is not limited to the embodiments and illustrated examples below. <Overview of the heat exchange system> Figure 1 is a schematic diagram of the heat exchange system 1. The heat exchange system 1 comprises an oil cooler 2, an engine 3, an oil pump 4, a radiator 5, a water pump 6, an oil passage 7, and a cooling water passage 8. The oil cooler 2 is a heat exchanger. The oil cooler 2 performs heat exchange between the high-temperature engine oil discharged from the engine 3 and the low-temperature coolant cooled by the radiator 5. The oil passage 7 is the passage through which engine oil flows. The oil passage 7 is connected by piping between the engine 3 and the oil cooler 2, between the oil cooler 2 and the oil pump 4, and between the oil pump 4 and the engine 3, circulating the engine oil in the direction of the arrows in Figure 1. The hot engine oil discharged from engine 3 is supplied to oil cooler 2. The engine oil is cooled in oil cooler 2 and then supplied to oil pump 4. The engine oil is then supplied back to engine 3 by oil pump 4. The cooling water passage 8 is a passage through which the cooling water flows. The cooling water passage 8 connects the radiator 5 and the water pump 6, the water pump 6 and the oil cooler 2, and the oil cooler 2 and the radiator 5 with pipes, and circulates the cooling water in the direction of the arrows in Figure 1. The coolant discharged from the radiator 5 is supplied to the oil cooler 2 by the water pump 6. The coolant cools the engine oil in the oil cooler 2, becoming hot. The hot coolant is then supplied from the oil cooler 2 back to the radiator 5. The coolant is then cooled by the radiator 5. <Structure of the oil cooler> Figure 2(a) is a perspective view of the oil cooler 2. The oil cooler 2 comprises a bottom flange 10 and a heat exchange section 20. (Bottom flange) The bottom flange 10 is a component for attaching the oil cooler 2 to other structures such as the engine block. The bottom flange 10 is made of a metal plate. The bottom flange 10 has a plurality of through holes 11, oil outlet inlets 12a and 12b, and coolant outlet inlets 13a and 13b. Figure 3 is an exploded view of the oil cooler 2. Here, the vertical direction is defined as the direction parallel to the thickness of the bottom flange 10. Furthermore, as shown in Figure 3, the direction perpendicular to the vertical direction is defined as the front-to-back direction, and the direction perpendicular to both the vertical and front-to-back directions is defined as the left-to-right direction. The through-holes 11 are holes for screw fastening. The through-holes 11 are holes that penetrate the bottom flange 10 vertically. The through-holes 11 are provided on the outer periphery of the bottom flange 10 so as not to overlap with the mounting portion of the heat exchange unit 20. In this embodiment, six through-holes 11 are provided in the bottom flange 10. Bolts (not shown) are fitted into the through-holes 11, and the oil cooler 2 is attached to other structures by fastening these bolts to other structures. The oil inlets 12a and 12b are openings through which engine oil flows. In this embodiment, the rear opening of the bottom flange 10 is used as the oil inlet 12a, and the front opening is used as the oil outlet 12b. The cooling water inlets 13a and 13b are openings through which cooling water flows. In this embodiment, the rear opening of the bottom flange 10 is used as the cooling water inlet 13a, and the front opening is used as the cooling water outlet 13b. The cooling water inlet 13a has a small diameter opening 14a and a large diameter opening 15a. The small diameter opening 14a is provided extending from the lower su