公开(公告)号：US10309645B2

公开(公告)日：2019-06-04

申请号：US15624393

申请日：2017-06-15

Applicant: NORITZ CORPORATION

Inventor： Yuta Tsuji ,  Naoki Se ,  Hideyuki Fujisawa ,  Katsuya Imaoka ,  Keizo Kawano ,  Tatsuya Karaki ,  Ryosuke Umakoshi

IPC: F23D14/04 ,  F23D14/02 ,  F23D14/06

Abstract: A cover member of a gas supply manifold has a bent rising wall portion that is formed by bending a part of the cover member so as to rise in an opposite direction of a main body. The bent rising wall portion is in a form of a loop surrounding the entire circumference of a gas supply flow path and an area around the gas supply flow path. Such configuration increases the rigidity of the cover member and prevents large distortion of the cover member and leakage of gas from the gas supply flow path. As a result, the thickness of the cover member is reduced and the weight and the production cost of the gas supply manifold are also reduced.

公开(公告)号：US20220128065A1

公开(公告)日：2022-04-28

申请号：US17499867

申请日：2021-10-13

Applicant: NORITZ CORPORATION

Inventor： Ryosuke Umakoshi ,  Mikihiro Iwamoto

IPC: F04D29/42 ,  F04D17/10 ,  F23L5/02

Abstract: Provided is a blowing device capable of improving a noise reduction effect as compared with a conventional case, and a combustion device including the blowing device is provided. In a rear side shroud of an impeller configuring a blowing device, a first inclined surface portion that is inclined so as to be located frontward toward the radial outer side is formed in a front surface portion of the rear side shroud in a region close to the outer peripheral edge, while a second inclined surface portion that is inclined so as to be located rearward toward the radial outer side is formed in a front surface portion of the rear side shroud in a region closer to the center than the first inclined surface portion.

公开(公告)号：US10533742B2

公开(公告)日：2020-01-14

申请号：US15405017

申请日：2017-01-12

Applicant: NORITZ CORPORATION

Inventor： Takashi Akiyama ,  Ryosuke Umakoshi ,  Taihei Terasawa ,  Kenichi Sakurai ,  Tatsuya Karaki ,  Naoki Se

IPC: F23D14/62 ,  F23D14/22 ,  F23D14/10 ,  F23D14/46 ,  F23D14/04 ,  F23D23/00

Abstract: A burner case and a burner device provided with the burner case are disclosed. A cover for closing an opening of a case body of the burner case is attached to the case body by a first caulking portion and a second caulking portion. A first caulking direction and a second caulking direction intersect with each other, the first caulking direction is a direction in which a first attachment piece and a first facing portion, those constituting the first caulking portion, face each other and are caulked, the second caulking direction is a direction in which a second attachment piece and a second facing portion, those constituting the second caulking portion, face each other and are caulked. Thus, the case body and the cover are not required to be screwed or the number of the screws is reduced, and leakage of gas from the burner case to outside is prevented.

公开(公告)号：US11795966B2

公开(公告)日：2023-10-24

申请号：US17499867

申请日：2021-10-13

Applicant: NORITZ CORPORATION

Inventor： Ryosuke Umakoshi ,  Mikihiro Iwamoto

IPC: F04D29/42 ,  F23L5/02 ,  F04D17/10 ,  F04D17/16 ,  F04D29/44

CPC classification number: F04D29/4226 ,  F04D17/10 ,  F04D17/16 ,  F04D29/441 ,  F23L5/02 ,  F04D29/442

Abstract: Provided is a blowing device capable of improving a noise reduction effect as compared with a conventional case, and a combustion device including the blowing device is provided. In a rear side shroud of an impeller configuring a blowing device, a first inclined surface portion that is inclined so as to be located frontward toward the radial outer side is formed in a front surface portion of the rear side shroud in a region close to the outer peripheral edge, while a second inclined surface portion that is inclined so as to be located rearward toward the radial outer side is formed in a front surface portion of the rear side shroud in a region closer to the center than the first inclined surface portion.

公开(公告)号：US20130171576A1

公开(公告)日：2013-07-04

申请号：US13727136

申请日：2012-12-26

Applicant: Noritz Corporation

Inventor： Takashi Akiyama ,  Takeshi Wakada ,  Toshio Watanabe ,  Itsuo Nagai ,  Yasutaka Kuriyama ,  Norihide Wada ,  Ryosuke Umakoshi ,  Keigo Fukunishi

IPC: F23D14/02 ,  F23D14/58

CPC classification number: F23D14/02 ,  F23C2201/20 ,  F23D14/105 ,  F23D14/58 ,  F23D2213/00

Abstract: There is provided a flame hole formation member 7 which is inserted and mounted from above in a third plate member 6 used to form a central rich-side flame hole row 33. As the flame hole formation member 7, a pair of flame hole formation parts 71, 71 each used to form a respective lean-side flame hole row 34 are connected by bridge formation parts 72, 72 at their upper end positions, with a predetermined distance held between the flame hole formation parts 71, 71. The bridge formation part 72, 72 is fitted from above into an engagement groove 332 formed in the upper end edge of the third plate member 6, whereby the pair of the flame hole formation parts 71, 71 are assembled so as to sit astride the upper end edge of the third plate member 6.

Abstract translation: 设置有从上方插入并安装在用于形成中央富燃侧火焰排列33的第三板构件6中的火焰孔形成构件7.作为火焰孔形成构件7，一对火焰孔形成部 用于形成相应的稀燃侧火焰孔排34的电动机71,71在其上端位置通过桥形成部72,72连接，并且在火焰形成部71,71之间保持预定的距离。桥形成部 72,72从上方装配到形成在第三板构件6的上端边缘中的接合槽332中，由此一对火焰孔形成部71,71组装成跨越第三板构件6的上端边缘。 第三板构件6。

公开(公告)号：US20130149653A1

公开(公告)日：2013-06-13

申请号：US13708169

申请日：2012-12-07

Applicant: NORITZ CORPORATION

Inventor： Keigo Fukunishi ,  Takeshi Wakada ,  Toshio Watanabe ,  Takashi Akiyama ,  Yasutaka Kuriyama ,  Itsuo Nagai ,  Norihide Wada ,  Ryosuke Umakoshi

IPC: F23D14/02

CPC classification number: F23D14/02 ,  F23D14/586 ,  F23D14/70 ,  F23D14/84 ,  F23D2213/00 ,  F23D2900/00003

Abstract: In a rich-lean combustion burner, each of outer rich-side flame holes disposed on both outer sides is supplied with rich-side mixture in the same amount and mixing state as the others. A lower end part of a central rich-side burner part is projected into an interior of a tubular part to which a rich-side mixture is introduced. First communication holes are opened, respectively, in both side walls of the lower end part. A second and a third communication holes in fluid communication with an outer rich-side burner part are opened in a tubular part. The second and the third communication holes are oriented so as to face each other without any obstruction, other than a space, therebetween. Furthermore, a pocket part which is a space part adapted to collect and accumulate dust particles is formed on the downstream side up to a closed end.

Abstract translation: 在富稀燃燃烧器中，设置在两个外侧的每个外富集侧火焰孔以与其它相同量和混合状态供给富集侧混合物。 中央富燃烧器部分的下端部分突出到引入富侧混合物的管状部分的内部。 第一连通孔分别在下端部的两个侧壁中打开。 与外富集燃烧器部分流体连通的第二和第三连通孔在管状部分中打开。 第二连通孔和第三连通孔相互面对，在其间没有任何障碍物（空间以外）。 此外，在下游侧形成一个适于收集和积聚灰尘颗粒的空间部分的袋部，直到封闭端。

公开(公告)号：US11512871B2

公开(公告)日：2022-11-29

申请号：US16822589

申请日：2020-03-18

Applicant: NORITZ CORPORATION

Inventor： Hiroki Hasegawa ,  Takashi Akiyama ,  Keigo Fukunishi ,  Koji Ota ,  Ryosuke Umakoshi

IPC: F24H1/00 ,  F23C5/02 ,  F23C7/00 ,  F23K5/00 ,  F23L1/00 ,  F23L17/00 ,  F24D17/00 ,  F24H9/20 ,  F23M7/00 ,  F28F1/20

Abstract: Provided is a water heater including a burner that receives a supply of combustion air from a fan, a heat exchanger having a heat transfer tube, and a combustion chamber case in which a combustion chamber of the burner is formed in the interior thereof and which is to be capable of guiding combustion gas generated by the burner to the heat exchanger. The water heater further includes a unit case that surrounds the combustion chamber case, and a region on the outside of the combustion chamber case within the unit case serves as an air pressure chamber having a higher pressure than the combustion chamber. Thus, combustion gas leakage to the outside can be prevented or suppressed appropriately by means of a simple configuration.

公开(公告)号：US10012411B2

公开(公告)日：2018-07-03

申请号：US15067922

申请日：2016-03-11

Applicant: Noritz Corporation

Inventor： Ryosuke Umakoshi

IPC: F24H1/16 ,  F24H9/14 ,  F24H9/18 ,  F23L1/00 ,  F24H9/00 ,  F23D1/00 ,  F23D14/04 ,  F23L5/02 ,  F23C7/02

CPC classification number: F24H1/165 ,  F23C7/02 ,  F23D1/00 ,  F23D14/045 ,  F23D2203/007 ,  F23D2214/00 ,  F23L1/00 ,  F23L5/02 ,  F24H9/0026 ,  F24H9/148 ,  F24H9/1836

Abstract: A combustion apparatus includes a burner and a heat shield plate. The heat shield plate includes a main plate portion located on a lateral side of a flame formation region above the burner to erect, a stepped portion protruding from a lower end of the main plate portion toward the burner and set at approximately the same height as that of a flame hole surface of the burner, and air passage holes provided in the stepped portion. The main plate portion is provided with a facing wall portion which protrudes from a middle part of the main plate portion in a vertical height direction thereof toward the flame formation region and faces the air passage holes so as to be subjected to a collision with air travelling upward from the air passage holes. This configuration allows the heat shield plate to be properly cooled/protected, while reducing consumed air.

公开(公告)号：US09228742B2

公开(公告)日：2016-01-05

申请号：US13727136

申请日：2012-12-26

Applicant: NORITZ CORPORATION

Inventor： Takashi Akiyama ,  Takeshi Wakada ,  Toshio Watanabe ,  Itsuo Nagai ,  Yasutaka Kuriyama ,  Norihide Wada ,  Ryosuke Umakoshi ,  Keigo Fukunishi

IPC: F23D14/58 ,  F23D14/02 ,  F23D14/10

CPC classification number: F23D14/02 ,  F23C2201/20 ,  F23D14/105 ,  F23D14/58 ,  F23D2213/00

Abstract: There is provided a flame hole formation member 7 which is inserted and mounted from above in a third plate member 6 used to form a central rich-side flame hole row 33. As the flame hole formation member 7, a pair of flame hole formation parts 71, 71 each used to form a respective lean-side flame hole row 34 are connected by bridge formation parts 72, 72 at their upper end positions, with a predetermined distance held between the flame hole formation parts 71, 71. The bridge formation part 72, 72 is fitted from above into an engagement groove 332 formed in the upper end edge of the third plate member 6, whereby the pair of the flame hole formation parts 71, 71 are assembled so as to sit astride the upper end edge of the third plate member 6.

Abstract translation: 设置有从上方插入并安装在用于形成中央富燃侧火焰排列33的第三板构件6中的火焰孔形成构件7.作为火焰孔形成构件7，一对火焰孔形成部 用于形成相应的稀燃侧火焰孔排34的电动机71,71在其上端位置通过桥形成部72,72连接，并且在火焰形成部71,71之间保持预定的距离。桥形成部 72,72从上方装配到形成在第三板构件6的上端边缘中的接合槽332中，由此一对火焰孔形成部71,71组装成跨越第三板构件6的上端边缘。 第三板构件6。

公开(公告)号：US09115889B2

公开(公告)日：2015-08-25

申请号：US13708169

申请日：2012-12-07

Applicant: NORITZ CORPORATION

Inventor： Keigo Fukunishi ,  Takeshi Wakada ,  Toshio Watanabe ,  Takashi Akiyama ,  Yasutaka Kuriyama ,  Itsuo Nagai ,  Norihide Wada ,  Ryosuke Umakoshi

IPC: F23D14/46 ,  F23D14/02 ,  F23D14/58 ,  F23D14/70 ,  F23D14/84

CPC classification number: F23D14/02 ,  F23D14/586 ,  F23D14/70 ,  F23D14/84 ,  F23D2213/00 ,  F23D2900/00003

Abstract: In a rich-lean combustion burner, each of outer rich-side flame holes disposed on both outer sides is supplied with rich-side mixture in the same amount and mixing state as the others. A lower end part of a central rich-side burner part is projected into an interior of a tubular part to which a rich-side mixture is introduced. First communication holes are opened, respectively, in both side walls of the lower end part. A second and a third communication holes in fluid communication with an outer rich-side burner part are opened in a tubular part. The second and the third communication holes are oriented so as to face each other without any obstruction, other than a space, therebetween. Furthermore, a pocket part which is a space part adapted to collect and accumulate dust particles is formed on the downstream side up to a closed end.

Abstract translation: 在富稀燃燃烧器中，设置在两个外侧的每个外富集侧火焰孔以与其它相同量和混合状态供给富集侧混合物。 中央富燃烧器部分的下端部分突出到引入富侧混合物的管状部分的内部。 第一连通孔分别在下端部的两个侧壁中打开。 与外富集燃烧器部分流体连通的第二和第三连通孔在管状部分中打开。 第二连通孔和第三连通孔相互面对，在其间没有任何障碍物（空间以外）。 此外，在下游侧形成一个适于收集和积聚灰尘颗粒的空间部分的袋部，直到封闭端。