Heat exchanger

Patent metadata

Field	Value
Publication number	US-11181330-B2
Application number	US-201916584916-A
Country	US
Kind code	B2
Filing date	Sep 26, 2019
Priority date	Sep 27, 2018
Publication date	Nov 23, 2021
Grant date	Nov 23, 2021

Abstract

The present disclosure relates to a heat exchanger, for example an indirect charge air cooler for an internal combustion engine. The heat exchanger includes a heat exchanger block including a first channel system for a first fluid and a second channel system for a second fluid that is fluidically separate from the first channel system. Two opposite side parts and two opposite end parts are structured and arranged to fluidically delimit the second channel system. At least one frame part is connected with a respective edge of the two side parts and of the two end parts. An air inlet box is connected to the at least one frame part via a seal. The heat exchanger block has a width b1 and a height h1, and the seal has a width b2 and a height h2, where b1≥b2 and h1≥h2.

First claim

The invention claimed is:

1. A heat exchanger for an internal combustion engine, comprising:
a heat exchanger block including a first channel system for a first fluid and a second channel system, fluidically separate from the first channel system, for a second fluid,
two opposite side parts and two opposite end parts, structured and arranged to fluidically delimit the second channel system,
wherein the heat exchanger block has a width b 1 and a height h 1 ,
at least one frame part, the at least one frame part connected in at least one of a force-fitting manner and a materially bonded manner with a respective edge of the two side parts and with a respective edge of the two end parts, and
an air inlet box connected to the at least one frame part via a seal, wherein the seal is configured as a rectangular ring seal and has a width b 2 and a height h 2 , and wherein b 1 ≥b 2 and h 1 ≥h 2 , so that the seal is maximally as wide and as high as the heat exchanger block,
wherein the at least one frame part has a first mount structured and arranged to receive an edge of the air inlet box, and the seal is arranged in the first mount, and
wherein the air inlet box has an outwardly projecting first edge portion that is engaged from behind by the respective edge of at least one of the two side parts or by the frame part, and the seal is further configured as an axial seal.

2. The heat exchanger according to claim 1 , wherein one of:
the first mount has a deep receiving region and a raised receiving region relative to the deep receiving region, wherein the seal configured as the axial seal is clamped between the first edge portion of the air inlet box and the deep receiving region of the first mount, and wherein the edge of the air inlet box has a second edge portion structured as a stop that supports the edge of the air inlet box on the raised receiving region, and
the first mount has a flat receiving region, wherein the seal configured as the axial seal is clamped between the first edge portion of the air inlet box and the flat receiving region of the first mount, and wherein the edge of the air inlet box has a second edge portion structured as a stop that supports the edge of the air inlet box on the flat receiving region.

3. The heat exchanger according to claim 1 , wherein the frame part has an edge that is S-shaped in cross-section.

4. The heat exchanger according to claim 3 , wherein the edge has a second mount facing the heat exchanger block, and wherein a respective one of the two side parts or a respective one of the two end parts is fixed in the second mount.

5. The heat exchanger according to claim 4 , wherein the respective edge of at least one of the respective side part and the respective edge of the respective end part is bent around and has a double edge region that is fixed in the second mount.

6. The heat exchanger according to claim 3 ,
wherein the edge has a free leg facing the air inlet box, and wherein the air inlet box is fixed to the at least one frame part via the free leg.

7. A heat exchanger for an internal combustion engine, comprising:
a heat exchanger block including a first channel system for a first fluid and a second channel system, fluidically separate from the first channel system, for a second fluid,
two opposite side parts and two opposite end parts, structured and arranged to fluidically delimit the second channel system,
wherein the heat exchanger block has a width b 1 and a height h 1 ,
at least one frame part, the at least one frame part connected in at least one of a force-fitting manner and a materially bonded manner with a respective edge of the two side parts and with a respective edge of the two end parts,
an air inlet box connected to the at least one frame part via a seal, wherein the seal is configured as a rectangular ring seal and has a width b 2 and a height h 2 , and wherein b 1 ≥b 2 and h 1 ≥h 2 , so that the seal is maximally as wide and as high as the heat exchanger block,
wherein one of:
the heat exchanger block includes a plurality of tubes that define the first channel system, and two collectors are provided fluidically separate from the second channel system, and wherein at least one of the two collectors includes a base part and a box part together delimiting a collecting chamber fluidically connected to at least one of the plurality of tubes, and
the heat exchanger block includes a plurality of plates that define the first channel system.

8. The heat exchanger according to claim 7 , wherein the at least one frame part has a first mount structured and arranged to receive an edge of the air inlet box.

9. The heat exchanger according to claim 8 , wherein the seal is arranged in the first mount.

10. The heat exchanger according to claim 9 , wherein:
the air inlet box has an outwardly projecting first edge portion with an undercut groove,
at least one of a respective side part of the two side parts and a respective end part of the two end parts has a lug that surrounds the first edge portion of the air inlet box and engages into the undercut groove in a mounted state,
the seal is further configured as a radial seal,
the first mount has an outer groove wall, a groove base and a curved inner groove wall, and
the air inlet box has a second edge portion provided on the edge, the second edge portion structured and arranged complementary to the groove base and to the inner groove wall of the first mount.

11. The heat exchanger according to claim 10 , wherein the seal configured as the radial seal is clamped in the mounted state between the outer groove wall and the first edge portion and the second edge portion.

12. The heat exchanger according to claim 7 , wherein the heat exchanger block includes the plurality of tubes, and wherein at least one of:
at least one of the base part and the box part define at least one of the two end parts, and
the second channel system includes a plurality of heat exchanger elements arranged therein, and wherein the plurality of heat exchanger elements are in heat-transmitting contact with at least one of the plurality of tubes.

13. The heat exchanger according to claim 12 , wherein the plurality of heat transfer elements comprise ribs.

14. An internal combustion engine, comprising:
a heat exchanger configured as a charge air cooler, the heat exchanger including:
a heat exchanger block including a first channel system for a first fluid and a second channel system for a second fluid, the second channel system fluidically separate from the first channel system;
two opposite side parts and two opposite end parts, structured and arranged to fluidically delimit the second channel system;
at least one frame part connected in at least one of a force-fitting manner and a materially bonded manner with a respective edge of the two side parts and with a respective edge of the two end parts;
an air inlet box connected to the at least one frame part via a seal;
wherein the heat exchanger block has a width b 1 and a height h 1 ;
wherein the seal is configured as a rectangular ring seal and has a width b 2 and a height h 2 , and wherein b 1 ≥b 2 and h 1 ≥h 2 , so that the seal is maximally as wide and as high as the heat exchanger block; and
wherein the at least one frame part has a first mount structured and arranged to receive an edge of the air inlet box, and an S-shaped edge providing a second mount facing the heat exchanger block.

15. The internal combustion engine according to claim 14 , wherein the seal is arranged in the first mount.

16. The internal combustion engine according to cl

Assignees

• Mahle Int Gmbh

Inventors

• Ferrand Nicolas
• Richter Jens

Classifications

• Y02T10/12

  Improving ICE efficiencies · CPC title

• F28D2021/0082

  Charged air coolers · CPC title

• F02B29/045 Primary

  Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly · CPC title

• F28F2009/029

  with increasing or decreasing cross-section, e.g. having conical shape · CPC title

• F28F9/0226 Primary

  with resilient gaskets · CPC title