# US 10,309,348 B2 · Motor vehicle heat exchanger system

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- Number: US 10,309,348 B2
- Document ID: US10309348B2
- Status: Granted
- Kind: B2
- Application number: 15/152,065
- Filed: 2016-05-11
- Published: 2016-11-17
- Granted: 2019-06-04
- Earliest claimed: 2015-05-12
- Assignees: Benteler Automobiltechnik GmbH
- Applicants: Benteler Automobiltechnik GmbH
- Inventors: Felix Rubitschek; Sven Przybylski; Tobias Düpmeier
- Web page: https://patentgrep.com/patent/US10309348B2

## CPC

- F02M 26/29: Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
- B60H 1/20: using an intermediate heat-transferring medium
- F01N 3/0205: {using heat exchangers}
- F01N 3/043: {without contact between liquid and exhaust gases}
- F25B 39/022: {with plate-like or laminated elements}
- F28D 9/0037: {the conduits for the other heat-exchange medium also being formed by paired plates touching each other (F28D9/0043 takes precedence)}
- F28D 15/025: {having non-capillary condensate return means}
- F28D 15/0266: {with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers (F28D15/043 takes precedence)}
- F28D 15/0275: {Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores}
- F28D 15/0283: {Means for filling or sealing heat pipes}
- F28D 15/04: with tubes having a capillary structure
- F28D 15/043: {forming loops, e.g. capillary pumped loops}
- F28D 21/0003: {the heat being recuperated from exhaust gases (F28D21/0014 takes precedence)}
- F28F 3/025: {the means being corrugated, plate-like elements}
- F28F 9/001: {Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core}
- F28F 13/003: {by using permeable mass, perforated or porous materials (F28F13/18 takes precedence)}
- F28F 13/185: {Heat-exchange surfaces provided with microstructures or with porous coatings}
- F25B 23/006: {boiling cooling systems}
- F28D 15/046: {characterised by the material or the construction of the capillary structure}
- F28D 2021/0064: {Vaporizers, e.g. evaporators}
- F28D 2021/008: {for vehicles}
- F28F 3/10: Arrangements for sealing the margins
- F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16)
- F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general)
- F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16)

## Abstract

A motor vehicle heat exchanger system includes a closed circuit for a working medium and an evaporator for evaporation of the working medium. The evaporator includes at least two evaporator cassettes having an exhaust gas channel formed between the evaporator cassettes. Each evaporator cassette includes a capillary structure and a liquid side and a vapor side. A medium feed is provided on the liquid side for liquid working medium. Each evaporator cassette includes a vapor collector.

## Claims

### Claim 1

A motor vehicle heat transfer system, comprising:
a closed circuit for a working medium;
an evaporator configured to evaporate the working medium, said evaporator comprising at least two elongated evaporator cassettes extending in a longitudinal direction and forming an exhaust gas channel therebetween, each said evaporator cassette including an elongated capillary structure extending in the longitudinal direction, and also a liquid side and a vapor side spaced from one another in a transverse direction;
a medium feed disposed in the liquid side at a location between longitudinal ends of the cassettes for supply of liquid working medium; and
a plurality of vapor collectors provided in one of the longitudinal ends of the evaporator cassettes.

### Claim 2 (depends on 1)

The motor vehicle heat exchanger system of claim 1, wherein the capillary structure is formed by a porous plate body.

### Claim 3 (depends on 1)

The motor vehicle heat exchanger system of claim 1, wherein the capillary structure is made of a sintered material.

### Claim 4 (depends on 1)

The motor vehicle heat exchanger system of claim 1, wherein the capillary structure has formed therein vapor channels.

### Claim 5 (depends on 4)

The motor vehicle heat exchanger system of claim 4, wherein the vapor channels are provided on the vapor side of the capillary structure.

### Claim 6 (depends on 1)

The motor vehicle heat exchanger system of claim 1, wherein the evaporator cassettes each include a distribution space on the liquid side for the working medium.

### Claim 7 (depends on 1)

The motor vehicle heat exchanger system of claim 1, wherein the evaporator cassettes each include two shell bodies joined to one another.

### Claim 8 (depends on 7)

The motor vehicle heat exchanger system of claim 7, wherein at least one of the shell bodies is provided with a bead.

### Claim 9 (depends on 8)

The motor vehicle heat exchanger system of claim 8, wherein the at least one bead is configured in the form of a perimetral sealing bead to border the liquid side of the evaporator cassette.

### Claim 10 (depends on 8)

The motor vehicle heat exchanger system of claim 8, wherein the at least one bead forms part of the medium feed.

### Claim 11 (depends on 1)

The motor vehicle heat exchanger system of claim 1, further comprising a housing, said evaporator cassettes being integrated in the housing.

### Claim 12 (depends on 1)

The motor vehicle heat exchanger system of claim 1, further comprising a medium distributor connected to the evaporator.

### Claim 13 (depends on 1)

The motor vehicle heat exchanger system of claim 1, further comprising heat transfer elements provided in the exhaust gas channel.

### Claim 14 (depends on 1)

The motor vehicle heat exchanger system of claim 1, further comprising an expansion tank, arranged upstream of the evaporator, for the working medium.

### Claim 15 (depends on 1)

The motor vehicle heat exchanger system of claim 1, wherein each of the evaporator cassettes has a cassette housing formed with vapor grooves on the vapor side.