公开(公告)号：US08785067B2

公开(公告)日：2014-07-22

申请号：US11671379

申请日：2007-02-05

Applicant: Prem Menon ,  John J. Conley ,  David A. Masten ,  Bruce J. Clingerman

Inventor： Prem Menon ,  John J. Conley ,  David A. Masten ,  Bruce J. Clingerman

IPC: H01H37/46 ,  H01M8/04

CPC classification number: H01M8/04029 ,  H01M8/04014 ,  H01M8/04141 ,  H01M8/04156 ,  H01M8/0435 ,  H01M8/04358 ,  H01M8/04731 ,  H01M8/04761 ,  H01M8/04768 ,  H01M8/04776 ,  Y02E60/50

Abstract: A fuel cell system that employs one or more wax elements to provide passive control. In one embodiment, a wax element device is positioned within a coolant stream pipe. The wax element device includes a wax element positioned within a container. An electrically conductive rod is positioned within the wax element and extends out of the pipe. As the wax element expands and contracts in response to temperature changes in the cooling fluid, the rod moves up and down to make various electrical contacts and control the various devices, such a coolant pump and a coolant fan. In another embodiment, the rod extends into a cathode exhaust pipe of the fuel cell system, and is coupled to a back-pressure valve therein. As the temperature of the cooling fluid changes, the wax element expands and contracts to control the position of the back-pressure valve.

Abstract translation: 一种燃料电池系统，其采用一个或多个蜡元件来提供被动控制。 在一个实施例中，蜡元件装置位于冷却剂流管内。 蜡元件装置包括位于容器内的蜡元件。 导电杆定位在蜡元件内并延伸出管道。 当蜡元件响应于冷却流体的温度变化而膨胀和收缩时，杆上下移动以形成各种电接触并控制各种装置，例如冷却剂泵和冷却剂风扇。 在另一个实施例中，杆延伸到燃料电池系统的阴极排气管中，并连接到其中的背压阀。 当冷却液的温度变化时，蜡元件膨胀并收缩以控制背压阀的位置。

公开(公告)号：US20080187803A1

公开(公告)日：2008-08-07

申请号：US11671379

申请日：2007-02-05

Applicant: Prem Menon ,  John J. Conley ,  David A. Masten ,  Bruce J. Clingerman

Inventor： Prem Menon ,  John J. Conley ,  David A. Masten ,  Bruce J. Clingerman

IPC: H01M8/04

CPC classification number: H01M8/04029 ,  H01M8/04014 ,  H01M8/04141 ,  H01M8/04156 ,  H01M8/0435 ,  H01M8/04358 ,  H01M8/04731 ,  H01M8/04761 ,  H01M8/04768 ,  H01M8/04776 ,  Y02E60/50

Abstract: A fuel cell system that employs one or more wax elements to provide passive control. In one embodiment, a wax element device is positioned within a coolant stream pipe. The wax element device includes a wax element positioned within a container. An electrically conductive rod is positioned within the wax element and extends out of the pipe. As the wax element expands and contracts in response to temperature changes in the cooling fluid, the rod moves up and down to make various electrical contacts and control the various devices, such a coolant pump and a coolant fan. In another embodiment, the rod extends into a cathode exhaust pipe of the fuel cell system, and is coupled to a back-pressure valve therein. As the temperature of the cooling fluid changes, the wax element expands and contracts to control the position of the back-pressure valve.

Abstract translation: 一种燃料电池系统，其采用一个或多个蜡元件来提供被动控制。 在一个实施例中，蜡元件装置位于冷却剂流管内。 蜡元件装置包括位于容器内的蜡元件。 导电杆定位在蜡元件内并延伸出管道。 当蜡元件响应于冷却流体的温度变化而膨胀和收缩时，杆上下移动以形成各种电接触并控制各种装置，例如冷却剂泵和冷却剂风扇。 在另一个实施例中，杆延伸到燃料电池系统的阴极排气管中，并连接到其中的背压阀。 当冷却液的温度变化时，蜡元件膨胀并收缩以控制背压阀的位置。