Cooling system for a fuel cell, and a fuel cell system

Patent metadata

Field	Value
Publication number	US-2018248206-A1
Application number	US-201615755429-A
Country	US
Kind code	A1
Filing date	Aug 24, 2016
Priority date	Aug 28, 2015
Publication date	Aug 30, 2018
Grant date	—

Abstract

The invention relates to a cooling system ( 100 ) for a fuel cell ( 12 ) of a fuel-cell vehicle, with a cooling circuit ( 10 ) that includes the fuel cell ( 12 ), a coolant pump ( 16 ) that conveys a coolant, a radiator ( 18 ), a coolant line ( 30 ) that transports the coolant, and an electric heater ( 24 ) for warming the coolant, as well as a fuel-cell system having such a cooling circuit.
It is provided that the heater ( 24 ) be designed as a heating line ( 25 ) which extends along at least a part of the coolant line ( 30 ).

First claim

1 . A cooling system of a fuel-cell vehicle, comprising:
a cooling circuit including:
a fuel cell;
a coolant pump that conveys a coolant;
a radiator;
a coolant line that transports the coolant; and
an electric heater for warming the coolant, wherein the electric heater is configured as a heating line that extends along at least a portion of the coolant line.

2 . The cooling system according to claim 1 , wherein the heating line is integrated into at least the portion of the coolant line.

3 . The cooling system according to claim 1 , wherein the heating line is arranged in an interior of the portion of the coolant line.

4 . The cooling system according to claim 1 , wherein the heating line is in contact with an interior section of the portion of the coolant line, such that the heating line at least partially lines the portion of the coolant line.

5 . The cooling system according to claim 1 , wherein the heating line is incorporated into a wall of the portion of the coolant line.

6 . The cooling system according to claim 1 , wherein the heating line is arranged on an outer side of a wall of the portion of the coolant line.

7 . The cooling system according to claim 6 , wherein the heating line at least partially encloses the portion of the coolant line over an entire circumference of the wall of the portion of the coolant line.

8 . The cooling system according to claim 1 , comprising:
a power control that controls and/or regulates heating capacity of the heating line.

9 . The cooling system according to claim 1 , wherein the heating line is arranged upstream of the fuel cell.

10 . A fuel-cell system comprising a cooling system, the cooling system including:
a fuel cell; a coolant pump that conveys a coolant; a radiator; a coolant line that transports the coolant; and an electric heater for warming the coolant, wherein the electric heater is configured as a heating line that extends along at least a portion of the coolant line.

11 . The fuel-cell system according to claim 10 , wherein the heating line is integrated into at least the portion of the coolant line.

Assignees

• Volkswagen Ag
• Audi Ag

Inventors

• Denecke Jan
• Gruenheid Nadine

Classifications

• H01M8/04067

  Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins · CPC title

• H01M8/04037 Primary

  Electrical heating · CPC title

• H01M2250/20

  Fuel cells in motive systems, e.g. vehicle, ship, plane · CPC title

• B60L58/34

  by heating · CPC title

• H01M8/04029

  Heat exchange using liquids · CPC title