公开(公告)号：US11799118B2

公开(公告)日：2023-10-24

申请号：US17625581

申请日：2020-06-15

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Yasuhide Okazaki ,  Yoshinobu Takaki ,  Kotaro Yagi ,  Masato Kawami ,  Takashi Ogawa ,  Naohiro Nakataya ,  Masao Oku

IPC: H01M8/243 ,  H01M8/2484 ,  H01M8/0612 ,  H01M8/0662 ,  H01M8/2475 ,  H01M8/12

CPC classification number: H01M8/243 ,  H01M8/0618 ,  H01M8/0662 ,  H01M8/2475 ,  H01M8/2484 ,  H01M2008/1293

Abstract: A fuel cell system includes a reformer, fuel cell stacks, and an exhaust-gas combustor. The reformer has a tubular shape extending in an axial direction and reforms raw fuel into combustion gas. The fuel cell stacks generate electric power from the fuel gas and oxidant gas. The fuel cell stacks are arranged radially outward of the reformer in a circumferential direction to face the reformer in a radial direction. The exhaust-gas combustor burns fuel gas that is not used and included in exhaust gas from the fuel cell stacks. The exhaust-gas combustor is arranged radially inward of the reformer to face the reformer in the radial direction. Each fuel cell stack includes flat plate type cells stacked in the radial direction. This achieves downsizing of the fuel cell system.

公开(公告)号：US10781100B2

公开(公告)日：2020-09-22

申请号：US16315440

申请日：2017-06-15

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Daisuke Hashimoto ,  Kyohei Izuma ,  Kazuki Wakamiya ,  Kotaro Yagi

IPC: H01M8/04 ,  C01B3/38 ,  H01M8/12 ,  H01M8/0606 ,  H01M8/1231 ,  H01M8/04014 ,  H01M8/0612

Abstract: A fuel cell system includes a reformer and a plurality of fuel cells of solid oxide. The reformer reforms raw fuel to generate fuel gas. The plurality of fuel cells generates electric power by using the fuel gas and oxidant gas. The plurality of fuel cells is arranged in the up-down direction and the right-left direction. The reformer has a cell facing face that faces any of the plurality of fuel cells in the back-and-forth direction. This configuration improves temperature uniformity among the plurality of fuel cells, and as a result, suppresses or prevents a decrease in the power generation efficiency of the fuel cell system.

公开(公告)号：US11735757B2

公开(公告)日：2023-08-22

申请号：US17625581

申请日：2020-06-15

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Yasuhide Okazaki ,  Yoshinobu Takaki ,  Kotaro Yagi ,  Masato Kawami ,  Takashi Ogawa ,  Naohiro Nakataya ,  Masao Oku

IPC: H01M8/243 ,  H01M8/2484 ,  H01M8/0612 ,  H01M8/0662 ,  H01M8/2475 ,  H01M8/12

CPC classification number: H01M8/243 ,  H01M8/0618 ,  H01M8/0662 ,  H01M8/2475 ,  H01M8/2484 ,  H01M2008/1293

Abstract: A fuel cell system includes a reformer, fuel cell stacks, and an exhaust-gas combustor. The reformer has a tubular shape extending in an axial direction and reforms raw fuel into combustion gas. The fuel cell stacks generate electric power from the fuel gas and oxidant gas. The fuel cell stacks are arranged radially outward of the reformer in a circumferential direction to face the reformer in a radial direction. The exhaust-gas combustor burns fuel gas that is not used and included in exhaust gas from the fuel cell stacks. The exhaust-gas combustor is arranged radially inward of the reformer to face the reformer in the radial direction. Each fuel cell stack includes flat plate type cells stacked in the radial direction. This achieves downsizing of the fuel cell system.