公开(公告)号：US11302941B2

公开(公告)日：2022-04-12

申请号：US16742218

申请日：2020-01-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Raffaello Ardanese ,  Kristopher A. Thor ,  Amber T. Vanness ,  Mark A. Leavitt

IPC: H01M8/0438 ,  H01M8/04082 ,  H01M8/04746 ,  F16K21/04 ,  F16K37/00 ,  G05D7/01

Abstract: A pressure-based latching switch includes a shuttle valve, a first valve and a second valve. The shuttle valve may switch a fuel through one of a first port and a second port in response to a greater pressure of the fuel at the ports. The first valve may switch a fuel to the first port while a second pressure of the fuel at the second port is less than a second threshold pressure. The second valve may switch the fuel to the second port while a first pressure of the fuel at the first port is less than a first threshold pressure. The pressure-based latching switch may change the fuel supplied to the fuel cell system automatically from a first fuel tank to a second fuel tank in response to the first pressure of the fuel falling below the first threshold pressure.

公开(公告)号：US20210218043A1

公开(公告)日：2021-07-15

申请号：US16742218

申请日：2020-01-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Raffaello Ardanese ,  Kristopher A. Thor ,  Amber T. Vanness ,  Mark A. Leavitt

IPC: H01M8/0438 ,  H01M8/04082 ,  H01M8/04746 ,  F16K37/00 ,  F16K21/04 ,  G05D7/01

Abstract: A pressure-based latching switch includes a shuttle valve, a first valve and a second valve. The shuttle valve may switch a fuel through one of a first port and a second port in response to a greater pressure of the fuel at the ports. The first valve may switch a fuel to the first port while a second pressure of the fuel at the second port is less than a second threshold pressure. The second valve may switch the fuel to the second port while a first pressure of the fuel at the first port is less than a first threshold pressure. The pressure-based latching switch may change the fuel supplied to the fuel cell system automatically from a first fuel tank to a second fuel tank in response to the first pressure of the fuel falling below the first threshold pressure.