阅读说明：本技术 用于燃料电池的空气供应的装置 (The device of air supply for fuel cell ) 是由 J-C.哈格 L.奥拉斯 C.海因茨 K.巴托洛梅 于 2019-05-24 设计创作，主要内容包括：本发明涉及经由废气涡轮增压器(20)的压缩机(21)用于燃料电池(10)、特别是用氢操作的燃料电池(10)的空气供应的装置(1),其中,该压缩机(21)经由轴(23)以有效地驱动的方式连接到涡轮增压器(20)的涡轮(22),该涡轮能够由该燃料电池的废气流(A)驱动,并且此外,该涡轮增压器(20)经由轴(25)以有效地驱动的方式连接到马达(40),其中,该压缩机(21)经由空气供应管道(24)连接到该燃料电池(10)以用于供应压缩空气(L)。(The present invention relates to the compressors (21) via exhaust-driven turbo-charger exhaust-gas turbo charger (20) to be used for fuel cell (10), the device (1) of the air supply of the fuel cell (10) especially operated with hydrogen, wherein, the compressor (21) is connected to the turbine (22) of turbocharger (20) via axis (23) in a manner of effectively driving, the turbine can be driven by the waste gas stream (A) of the fuel cell, and furthermore, the turbocharger (20) is connected to motor (40) via axis (25) in a manner of effectively driving, wherein, the compressor (21) is connected to the fuel cell (10) for supplying compressed air (L) via air supply pipe (24).)

1. a kind of device (1), described device via exhaust-driven turbo-charger exhaust-gas turbo charger (20) compressor (21) for fuel cell (10), The air supply of the fuel cell (10) especially operated with hydrogen, wherein the compressor (21) is via axis (23) with effectively The mode of driving is connected to the turbine (22) of the turbocharger (20), and the turbine can be by the exhaust gas of the fuel cell (A) driving is flowed, and in addition, the turbocharger (20) is connected to motor via axis (25) in a manner of effectively driving (40), wherein the compressor (21) is connected to the fuel cell (10) for supplying via air supply pipe (24) Compressed air (L).

2. the apparatus according to claim 1 (1), which is characterized in that motor (40) is electric motor.

3. device (1) according to claim 1 or 2, which is characterized in that the motor (40), the compressor (21) and The turbine (22) is connected to each other in a manner of effectively driving on common axis (23,25).

4. device (1) according to claim 3, which is characterized in that the motor (40) in a manner of effectively driving with The axis (23) of the turbocharger connects, and the motor is located at the compressor (21) outside the turbocharger (20) Compressor side on.

5. device (1) according to claim 3, which is characterized in that the motor (40) utilizes the turbocharger Axis (23) is connected to the turbine (22) in a manner of effectively driving, and the motor is located at whirlpool outside turbocharger (20) It takes turns on side.

6. device (1) according to any one of claim 4 or 5, which is characterized in that by means of sliding bearing to realize State the installation of axis (23).

7. the purposes of device (1) according to any one of claim 1 to 6, described device is used for as fuel cell (10) air is provided, the fuel cell is a part of fuel cell system, is mentioned via the fuel cell system for user Power supply driving power, preferably in the power bracket greater than 100kW.

Technical field

The present invention relates to the devices of the air supply for fuel cell, particularly the fuel cell operated with hydrogen.

Background technique

Routinely, fuel cell is operated with pure hydrogen, and hydrogen reacts in a fuel cell to form water, thus in this process Discharge electric power.In general, for this purpose, hydrogen expands from pressure vessel and is fed to fuel cell.For in fuel cell Necessary air is inhaled into from ambient enviroment by means of electrically operated blower and is fed to fuel cell for burning.

Such as it is described in 101 20 947 A1 of DE or in 10 2,004 051 359 A1 of DE general existing Technology.

In the two open source literatures, two compressor stages are provided, and conventional system bypass is in the second compressor The entrance of turbine is branched off and led to after grade.

This construction allows to carry out air supply certain adjusting, but can not achieve necessary freedom degree, so as to example Such as preventing under various operational circumstances can be using being designed to two compressor stages of flow compressor come with energy-efficient Mode adjust desired flow rate and pressure in the region of fuel cell.

In automotive field, it is also known that the fuel cell to be charged by means of turbocharger.Wherein, air inlet is by whirlpool Take turns the compressor sucking of booster, and the turbine of the exhaust-driven turbocharger generated during burning.If desired, can With by electric motor by the additional axis for feeding electric energy into turbocharger, to offset the thermodynamics of both parts not Balance.

The shortcomings that known technical solution, is that these cannot be used for plant-scale energy in an energy-efficient manner It generates.In the presence of for improving energy efficiency and the therefore demand of the efficiency of raising whole system.

Summary of the invention

Therefore, it is an object of the invention to avoid the shortcomings that being previously mentioned and state such scheme: the program is being supplied High-freedom degree is provided in terms of the flow rate and pressure to fuel cell and energy-efficient is provided simultaneously.

According to the present invention, the program is solved by the device of the feature with claim 1.

Basic conception of the invention is, using turbocharger, particularly exhaust-driven turbo-charger exhaust-gas turbo charger to be used for fuel electricity The air supply in pond, and the turbocharger is operated in a manner of performance balance, wherein the energy that can be not only utilized by waste gas stream Amount is utilized to the compressor of driving turbocharger, and in addition the turbocharger can be driven by motor.

According to the present invention, therefore propose such device: the device is used for via the compressor of exhaust-driven turbo-charger exhaust-gas turbo charger With the air supply for the fuel cell that hydrogen operates, wherein the compressor is connected to turbine via axis in a manner of effectively driving The turbine of booster, the turbine can be driven by the waste gas stream A of the fuel cell, and furthermore the turbocharger via axis with The mode effectively driven is connected to motor, wherein the compressor via air supply pipe be connected to the fuel cell with In supply compressed air.

In preferable configuration of the invention, motor is electric motor.Furthermore it is advantageous that motor, compressor and turbine It is connected to each other in a manner of effectively driving on common axis (preferably, the axis of turbocharger).

In another advantageous embodiment of the invention, provided to be, motor is outside turbocharger in compressor In compressor side in a manner of effectively driving and the axis connection of turbocharger.

Alternatively, it is possible to provide, motor is connected to whirlpool by the axis of turbocharger in the way of effectively driving Wheel, the motor are located in turbo-side outside turbocharger.Therefore, when motor is thus connected outside turbocharger, It can be using sliding bearing commonly used by turbocharger, compared with oil-free installation, in the absorption aspects of revolving speed and axial force Have the advantages that significant.If realizing the advantage in embodiment, it is likely that by compressor and turbine design at optimal Efficiency.

Another aspect of the present invention relates to the purposes of the device for providing air for fuel cell as described above, It is a part of fuel cell system, electric drive power is provided via the fuel cell system for user, preferably > 100 Kilowatt power bracket in.

Detailed description of the invention

Characterize in the dependent claims it is of the invention other it is advantageous further expand, or pass through attached drawing and combine The description of the preferred embodiment of the present invention illustrates in greater detail of the invention other and advantageous further expands.

Attached drawing is shown:

Fig. 1 is the schematic diagram of the first exemplary embodiment according to the present invention；And

Fig. 2 is the schematic diagram of alternate embodiment according to the present invention.

Specific embodiment

Hereinafter, the present invention is described in further detail by preferred exemplary embodiment with reference to Fig. 1 and Fig. 2, wherein Identical appended drawing reference shows identical structure and/or functional characteristic in figure.

In shown exemplary embodiment, fuel cell 10 and the fuel cell for being operated with hydrogen are respectively illustrated The device 1 of 10 air supply.The device 1 includes compressor 21 and turbocharger 20.Compressor 21 is to effectively drive Mode is connected to the turbine 22 of turbocharger 20, which can be driven by the waste gas stream A of fuel cell 10.By fuel electricity The waste gas stream that pond 10 generates flows through turbine 22, and the compressor impeller of compressor 21 is driven via axis 23.In this process, it fires The supply air of material battery 10 is compressed by compressor 21 and is fed to fuel cell 10 via air supply pipe 24.

In the exemplary embodiment according to Fig. 1, it is provided with electric motor 40, can drive and compress via drive shaft 23 Machine 21.For this purpose, the compressor impeller of compressor 21 is arranged on common axis 23,25 together with turbine 22.Here, the motor The outside for being arranged in turbocharger 20 is located in the compressor side of compressor 21.

Provided to be in exemplary embodiment according to fig. 2, motor 40 is using the axis 23 of turbocharger with effective The mode of ground driving is connected to turbine 22, which is located at outside turbocharger 20 and specifically in turbo-side.

Therefore in the two exemplary embodiments, motor 40 is all not arranged between turbine 22 and compressor 21, but It is arranged in the outside of turbocharger 20.

In an embodiment of the present invention, the present invention is not limited to preferred illustrative embodiments set forth above.On the contrary, can be with Contemplate many modifications that shown scheme is also utilized even for fundamentally different types of embodiment.