INSERT FOR HEAT EXCHANGER

• US 20180112922A1
• Filed: 12/20/2017
• Published: 04/26/2018
• Est. Priority Date: 02/28/2014
• Status: Active Application

• Current Assignee: Denso International America Incorporated (DENSO Corporation)
• Original Assignee: Denso International America Incorporated (DENSO Corporation)
• Inventors: COCHRAN, William, STANDER, James, HAYASHI, Kosuke
• Granted Patent: US 10,274,258 B2
• Time in Patent Office: Days
• CPC Class Codes: B60H 2001/00135 Deviding walls for separate air flows
• CPC Class Codes: F28D 1/0417 with particular circuits for the same heat exchange medium, e.g. with the heat exchange medium flowing through sections having different heat exchange capacities or for heating/cooling the heat exchange medium at different temperatures
• CPC Class Codes: F28D 1/05316 Assemblies of conduits connected to common headers, e.g. core type radiators F28D1/05366 takes precedence
• CPC Class Codes: F28D 1/05366 Assemblies of conduits connected to common headers, e.g. core type radiators
• CPC Class Codes: F28D 2021/0085 Evaporators
• CPC Class Codes: F28F 1/20 the means being attachable to the element F28F1/22 takes precedence
• CPC Class Codes: F28F 1/22 the means having portions engaging further tubular elements
• CPC Class Codes: F28F 2009/226 Transversal partitions
• CPC Class Codes: F28F 2275/08 by clamping or clipping
• CPC Class Codes: F28F 9/22 Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates

Abstract

An insert is configured to be inserted into a heat exchanger having a plurality of tubes. The insert includes a base and a multiple blades. The blades are extended from the base. At least one of the blades has a spring portion. The spring portion is resiliently deformable and configured to be resiliently inserted between two of the tubes. The spring portion includes two arms. One of the two arms has one thin portion defining one recess dented in one direction in a thickness direction. The other of the two arms has the other thin portion defining the other recess dented in the other direction in the thickness direction. The one thin portion and the other thin portion are resiliently movable in a width direction within a clearance formed by the recesses, while overlapping one another in the thickness direction.

Claims

1. An insert for a heat exchanger having a plurality of tubes, the insert comprising:

a base; and

a plurality of blades extending from the base, wherein

at least one of the blades has a spring portion, which is resiliently deformable and configured to be resiliently inserted between two of the tubes,

the spring portion includes two arms,

one of the two arms has one thin portion defining one recess dented in one direction in a thickness direction,

an other of the two arms has an other thin portion defining an other recess dented in an other direction in the thickness direction, and

the one thin portion and the other thin portion are resiliently movable in a width direction within a clearance formed by the recesses, while overlapping one another in the thickness direction.

2. The insert according to claim 1, wherein

the base and the blades are integrally formed in a comb shape, and

the blades are extended from the base perpendicularly to the base.

3. The insert according to claim 1, wherein the spring portion includes two arms forming an aperture therebetween.

4. The insert according to claim 3, wherein

the two arms include C-shaped portions, respectively, and

the C-shaped portions are projected outward.

5. The insert according to claim 4, wherein the two arms are symmetrical with respect to an axis of the at least one of the blades.

6. The insert according to claim 4, wherein

the at least one of the blades further includes a tip end and a root end,

the root end extends from the base,

the C-shaped portions extends from the root end, and

the tip end extends from the spring portion.

7. The insert according to claim 6, wherein the C-shaped portions are projected outward relative to the root end and the tip end.

8. The insert according to claim 7, wherein

the aperture further includes a first slit,

the arms further includes first linear portions, respectively,

the first linear portions are located between the root end and the C-shaped portions, and

the first linear portions form the first slit therebetween.

9. The insert according to claim 8, wherein

the aperture further includes a second slit,

the arms further includes second linear portions, respectively,

the second linear portions are located between the C-shaped portions and the tip end, and

the second linear portions form the second slit therebetween.

10. The insert according to claim 9, wherein

the aperture further includes a center hole,

the C-shaped portions form the center hole therebetween, and

the first slit, the center hole, and the second slit are arranged in this order to form a single hollow space.

11. The insert according to claim 10, wherein

the C-shaped portions each includes a first bent portion, a center portion, and a second bent portion, which are connected in this order, and

the center portion is located outside the first linear portion and the second linear portion.

12. The insert according to claim 1, wherein the spring portion has a width greater than a width of a clearance between two of the tubes.

13. The insert according to claim 1, wherein

the spring portion is configured to be inserted in the tubes including a first front tube, a second front tube, a first rear tube, and a second rear tube, and

the spring portion is configured to be resiliently in contact with all the first front tube, the second front tube, the first rear tube, and the second rear tube in four directions.

14. The insert according to claim 1, wherein the base has an elastic base configured to be elastically in contact with the tubes.

15. The insert according to claim 1, wherein the base has a plurality of protrusions projected from the base and located between two of the blades, which are adjacent to each other.

16. The insert according to claim 1, wherein

the one thin portion and the other thin portion have a flash therebetween, before the one thin portion and the other thin portion are resiliently moved in the width direction, and

the one thin portion and the other thin portion are configured to overlap one another in the thickness direction, when resiliently moved in the width direction, while crushing the flash.