Heat exchanger

Patent metadata

Field	Value
Publication number	US-10871335-B2
Application number	US-201816166062-A
Country	US
Kind code	B2
Filing date	Oct 19, 2018
Priority date	Oct 20, 2017
Publication date	Dec 22, 2020
Grant date	Dec 22, 2020

Abstract

A heat exchanger may include a first collecting tank and a second collecting tank. The first collecting tank may include a first collecting pipe having a first collecting pipe opening for letting in a fluid and a second collecting pipe having a second collecting pipe opening for discharging the fluid. The second collecting tank may be arranged opposite the first collecting tank and may include a third collecting pipe and a fourth collecting pipe. The heat exchanger may also include a plurality of heat exchanger pipes fluidically connecting the first collecting pipe to the third collecting pipe and the second collecting pipe to the fourth collecting pipe. The heat exchanger may also include a separating wall arranged in each of the first collecting pipe and the second collecting pipe respectively dividing each into a first pipe section and a second pipe section.

First claim

The invention claimed is:

1. A heat exchanger, comprising:
a first collecting tank including a first collecting pipe and a second collecting pipe, the first collecting pipe having a first collecting pipe opening for letting in a fluid, and the second collecting pipe having a second collecting pipe opening for discharging the fluid;
a second collecting tank arranged opposite the first collecting tank and including a third collecting pipe and a fourth collecting pipe;
a plurality of heat exchanger pipes fluidically connecting the first collecting pipe to the third collecting pipe and the second collecting pipe to the fourth collecting pipe;
a separating wall arranged in each of the first collecting pipe and the second collecting pipe respectively dividing the first collecting pipe and the second collecting pipe into a first pipe section and a second pipe section;
a connector assembly configured to fluidically supply the first collecting tank, the connector assembly including a base plate, an outer shell, and two supply pipe bodies;
wherein the second pipe section of the first collecting pipe and the second pipe section of the second collecting pipe are fluidically connected in the first collecting tank such that the fluid is flowable through, in order, the first collecting pipe opening, the first pipe section of the first collecting pipe, the plurality of heat exchanger pipes, the third collecting pipe, the plurality of heat exchanger pipes, the second pipe section of the first collecting pipe, the second pipe section of the second collecting pipe, the plurality of heat exchanger pipes, the fourth collecting pipe, the plurality of heat exchanger pipes, the first pipe section of the second collecting pipe, the second collecting pipe opening;
wherein the base plate has a first plate opening fluidically connected to the first collecting pipe opening and a second plate opening fluidically connected to the second collecting pipe opening;
wherein a first pipe accommodation for a first supply pipe body and a second pipe accommodation for a second supply pipe body are defined by the base plate and the outer shell;
wherein the two supply pipe bodies each include a respective adapter element via which the two supply pipe bodies are arranged within a corresponding pipe accommodation and enclosed in a positive manner;
wherein a first supply duct extends from the first pipe accommodation to the first plate opening; and
wherein a second supply duct, which is fluidically separated from the first supply duct, extends from the second pipe accommodation to the second plate opening.

2. The heat exchanger according to claim 1 , wherein the first pipe section of the first collecting pipe includes the first collecting pipe opening, and the first pipe section of the second collecting pipe includes the second collecting pipe opening.

3. The heat exchanger according to claim 1 , wherein the plurality of heat exchanger pipes includes:
a plurality of first heat exchanger pipes fluidically connecting the first pipe section of the first connecting pipe to the third collecting pipe;
a plurality of second heat exchanger pipes fluidically connecting the third collecting pipe to the second pipe section of the first collecting pipe;
a plurality of third heat exchanger pipes fluidically connecting the second pipe section of the second collecting pipe to the fourth collecting pipe; and
a plurality of fourth heat exchanger pipes fluidically connecting the fourth collecting pipe to the first pipe section of the second collecting pipe.

4. The heat exchanger according to claim 1 , wherein the first collecting pipe, the second collecting pipe, the third collecting pipe, and the fourth collecting pipe have a respective flattened bottom including a plurality of passages directed to an outside and structured to accommodate the plurality of heat exchanger pipes.

5. The heat exchanger according to claim 1 , wherein each of the plurality of heat exchanger pipes has a shoulder arranged against a corresponding collecting pipe on a front side.

6. The heat exchanger according to claim 4 , wherein the respective flattened bottom of at least one of i) the first collecting pipe and the second collecting pipe, and ii) the third collecting pipe and the fourth collecting pipe, extend at an incline relative to one another and define a predetermined angle α, which is not equal to 180°.

7. The heat exchanger according to claim 4 , wherein:
at least one of the first collecting pipe and the second collecting pipe includes a wall connected to the respective flattened bottom and forming a flow cross section with the respective flattened bottom; and
the wall has a circular section in the shape of a circular segment disposed opposite the respective flattened bottom and a plurality of transition sections connected thereto on both sides, which transition into the respective flattened bottom.

8. The heat exchanger according to claim 7 , wherein the second plate opening has a cross section, which has a shape corresponding to a portion of the flow cross section disposed within the circular section, and is arranged aligned with the circular section and is fluidically connected to the second collecting pipe opening.

9. The heat exchanger according to claim 1 , wherein:
the first collecting pipe opening and the second collecting pipe opening are arranged on a front side of the first collecting tank; and
the base plate abuts on the front side of the first collecting tank such that the first plate opening and the second plate opening are arranged aligned with and directly fluidically connected to the first collecting pipe opening and the second collecting pipe opening respectively.

10. The heat exchanger according to claim 1 , wherein:
the base plate includes a first plate molding and a second plate molding that each protrude from the base plate away from the outer shell;
the outer shell includes a first shell molding and a second shell molding that each protrude from the outer shell away from the base plate;
the base plate and the outer shell are coupled to one another such that (i) the first plate molding and the first shell molding define the first pipe accommodation and (ii) the second plate molding and the second shell molding define the second pipe accommodation.

11. The heat exchanger according to claim 10 , wherein:
at least a portion of the first supply duct is defined by and between the first shell molding and a planar portion of the base plate; and
at least a portion of the second supply duct is defined by and between the second shell molding and the planar portion of the base plate.

12. The heat exchanger according to claim 6 , wherein the predetermined angle α is less than or equal to 174°.

13. A heat exchanger comprising:
a plurality of collecting pipes having a respective flattened bottom including a plurality of passages directed to an outside, the plurality of collecting pipes including a first collecting pipe, a second collecting pipe, a third collecting pipe, and a fourth collecting pipe, the first collecting pipe and the second collecting pipe respectively divided into a first pipe section and a second pipe section via a separating wall arranged therein;
a first collecting tank including the first collecting pipe and the second collecting pipe, the first collecting pipe having a first collecting pipe opening configured to let in a fluid, and the second collecting pipe having a second collecting pipe opening for discharging the fluid;
a second collecting tank arranged opposite the first collecting tank and including the third collecting pipe and the fourth collecting pipe; and
a plurali

Assignees

• Mahle Int Gmbh

Inventors

• Dolderer Axel
• Duerr Gottfried
• Goce Richard
• Muehleisen Harald
• Nothdurft Benjamin
• Pflieger Markus

Classifications

• F28F2009/0292

  with fins · CPC title

• F28F17/005

  Means for draining condensates from heat exchangers, e.g. from evaporators (F28B9/08 takes precedence) · CPC title

• F28F9/0224

  Header boxes formed by sealing end plates into covers (F28F9/0221 takes precedence) · CPC title

• F28F9/0229

  Double end plates; Single end plates with hollow spaces · CPC title

• F28D1/05391

  with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators · CPC title