Heat exchanger for at least partial arrangement in a service liquid tank and heat-exchanger body for such a heat exchanger

Patent metadata

Field	Value
Publication number	US-10690418-B2
Application number	US-201715445636-A
Country	US
Kind code	B2
Filing date	Feb 28, 2017
Priority date	Mar 3, 2016
Publication date	Jun 23, 2020
Grant date	Jun 23, 2020

Abstract

A heat exchanger ( 10 ) for arrangement inside a service-liquid tank ( 12 ), in particular inside a motor-vehicle service-liquid tank ( 12 ), comprising:
a heat-exchanger liquid reservoir ( 14 ) for receiving a supply of liquid ( 22 ), an electric heating device ( 20 ) which is constructed and arranged for the transfer of heat into the heat-exchanger liquid reservoir ( 14 ), and a heat-exchanger line ( 24 ) which originates at least from the heat-exchanger liquid reservoir ( 14 ) and which is designed for the transfer of heat from the liquid flowing in the heat-exchanger line ( 24 ) to an area ( 26 ) outside the heat-exchanger line ( 24 ), characterized in that the heat-exchanger line ( 24 ), as a circulation line, discharges into the heat-exchanger liquid reservoir ( 14 ).

First claim

The invention claimed is:

1. Heat exchanger for arrangement inside a service-liquid tank for a motor-vehicle service-liquid tank, comprising:
a heat-exchanger liquid reservoir for receiving a supply of liquid;
an electric heating device, which is constructed and arranged in order to transfer heat into the heat-exchanger liquid reservoir; and
a heat-exchanger line, which at least originates from the heat-exchanger liquid reservoir and which is constructed for the transfer of heat from the liquid flowing in the heat-exchanger line to a region outside the heat-exchanger line,
wherein the heat-exchanger line, as a circulation line, empties into the heat-exchanger liquid reservoir;
wherein the heat exchanger comprises at least two components which, when joined together, form between themselves at least one section of the heat-exchanger line;
wherein the heat exchanger has a filter carrier, designed as an integral part of the heat exchanger, wherein in or on the filter carrier a filter material is arranged, or can be arranged, outside the heat-exchanger line;
wherein the filter carrier has a wall which encloses a volume; and
wherein a section of the heat-exchanger line is formed and extends in the enclosing wall of the filter carrier.

2. Heat exchanger according to claim 1 ,
wherein the heat exchanger, at least in sections, is formed of a filled plastic material with a plastic material matrix and filler particles embedded therein, whereby the material of the filler particles has a greater thermal conductivity than the plastic material of the matrix.

3. Heat exchanger according to claim 1 ,
wherein it has a pumping line, separate from the heat-exchanger line that extends starting from an orifice in the filter carrier.

4. Heat exchanger according to one of claim 1 ,
wherein it has a heat-exchanger body in which is formed a section of the heat-exchanger line, wherein the heat-exchanger body has a connection-body end at which line connection formations are provided for a supply line to the section of the heat-exchanger line formed inside the heat-exchanger body and for a discharge line section from the section of the heat-exchanger line formed inside the heat-exchanger body.

5. Heat exchanger according to claim 4 ,
wherein a filter carrier is formed inside the heat-exchanger body, wherein between the connection-body end and the filter carrier, at least the heat-exchanger line has flow sections that are parallel to one another.

6. Heat exchanger according to claim 4 ,
wherein the heat-exchanger liquid reservoir is constructed as separate from the heat-exchanger body and is connected or can be connected to the latter in a flow-conveying manner via conduit means.

7. A service-liquid tank comprising:
a tank;
a heat-exchanger liquid reservoir disposed for receiving a supply of liquid from said tank;
an electric heating device, which is constructed and arranged in order to transfer heat into the heat-exchanger liquid reservoir; and
a heat-exchanger line, which at least originates from the heat-exchanger liquid reservoir and which is constructed for the transfer of heat from the liquid flowing in the heat-exchanger line to a region outside the heat-exchanger line, wherein the heat-exchanger line, as a circulation line, empties into the heat-exchanger liquid reservoir;
wherein the heat exchanger comprises at least two components which, when joined together, form between themselves at least one section of the heat-exchanger line;
wherein the heat exchanger has a filter carrier, designed as an integral part of the heat exchanger, wherein in or on the filter carrier a filter material is arranged, or can be arranged, outside the heat-exchanger line;
wherein the filter carrier has a wall which encloses a volume; and
wherein a section of the heat-exchanger line is formed and extends in the enclosing wall of the filter carrier.

8. Service-liquid tank according to claim 7 ,
wherein the heat-exchanger liquid reservoir is situated inside the tank.

9. Service-liquid tank according to claim 7 ,
wherein the heat-exchanger liquid reservoir is located outside the tank.

10. Heat exchanger according to claim 1 ,
wherein the heat exchanger, at least in a section that contributes to the formation of the heat-exchanger line, is formed of a filled plastic material with a plastic material matrix and filler particles embedded therein, whereby the material of the filler particles has a greater thermal conductivity than the plastic material of the matrix.

11. Heat exchanger according to claim 1 ,
wherein it has a filter carrier in which or on which a filter material is arranged, or can be arranged, outside the heat-exchanger line, interchangeably.

12. Heat exchanger according to claim 1 ,
wherein it has a pumping line, separate from the heat-exchanger line that extends starting from an orifice in the filter carrier, extending at least in sections parallel to a section of the heat-exchanger line.

13. Heat exchanger according to claim 1 ,
wherein it has a pumping line, separate from the heat-exchanger line that extends starting from an orifice in the filter carrier, extending at least in sections between two heat-exchanger line sections.

14. Heat exchanger according to claim 1 ,
wherein it has a heat-exchanger body in which is formed a section of the heat-exchanger line, wherein the heat-exchanger body has a connection-body end at which line connection formations are provided for a supply line to the section of the heat-exchanger line formed inside the heat-exchanger body and for a discharge line section from the section of the heat-exchanger line formed inside the heat-exchanger body, wherein provided also at the connection-body end is a line-connection formation to the section of the pumping line formed inside the heat-exchanger body, or/and at least one connection formation for a bypass line.

15. Heat exchanger according to claim 1 ,
wherein it has a heat-exchanger body in which is formed a section of the heat-exchanger line and also of the filter carrier or/and the pumping line, wherein the heat-exchanger body has a connection-body end at which line connection formations are provided for a supply line to the section of the heat-exchanger line formed inside the heat-exchanger body and for a discharge line section from the section of the heat-exchanger line formed inside the heat-exchanger body.

16. Heat exchanger according to claim 4 ,
wherein the filter carrier is formed inside the heat-exchanger body, wherein between the connection body end and the filter carrier, at least the heat-exchanger line has flow sections that are parallel to one another.

17. Heat exchanger according to claim 4 ,
wherein the heat-exchanger liquid reservoir is constructed as separate from the heat-exchanger body and is connected or can be connected to the latter in a flow-conveying manner via conduit means, detachably connected or connectable.

18. Service-liquid tank according to claim 7 ,
wherein the heat-exchanger liquid reservoir is situated inside the service-liquid tank and is open to the tank receiving volume of the service-liquid tank.

19. Heat exchanger according to claim 1 ,
wherein the at least two components are partial shells or half-shells.

20. Heat exchanger according to claim 16 ,
wherein also the pumping line between the connection-body end and the filter carrier extends at least in sections parallel to the heat-exchanger line.

Assignees

• Roechling Automotive Se & Co Kg

Inventors

• Chini Fabrizio
• Marini Luca
• De Metri Ivan
• Brunori Francesca
• Dalpez Stefano

Classifications

• Y02E60/14

  Thermal energy storage · CPC title

• F28F21/065

  the heat-exchange apparatus employing plate-like or laminated conduits · CPC title

• F01N2610/1406

  Storage means for substances, e.g. tanks or reservoirs · CPC title

• F28F19/006

  Preventing deposits of ice · CPC title

• F01N3/2066

  Selective catalytic reduction [SCR] · CPC title