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公开(公告)号：US20240255157A1
公开(公告)日：2024-08-01
申请号：US18409962
申请日：2024-01-11
申请人： RINNAI CORPORATION
发明人： Shingo Kondo
CPC分类号： F24D19/1039 , F24D3/18 , F24D19/1015
摘要： The present invention provides a heating system capable of implementing an inrush current countermeasure without causing an increase in cost. A control means of the heating system repeatedly executes, in a predetermined cycle, a sequence starting operation of the fluid flowing part, the predetermined cycle being divided into a plurality of operation start permitted intervals, and the operation start permitted intervals permitting, among the fluid flowing part, only a specific fluid flowing part determined for each operation start permitted interval, to start operating, and prohibiting the other fluid flowing part other than the specific fluid flowing part from starting to operate.
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公开(公告)号：US12044440B2
公开(公告)日：2024-07-23
申请号：US17733352
申请日：2022-04-29
申请人： RINNAI CORPORATION
发明人： Shogo Teranishi
IPC分类号： F24H9/02
CPC分类号： F24H9/02
摘要： A piping cover (6) has a side plate (8), wherein the side plate (8) includes a connecting flange (81) extending toward an inside of the piping cover (6) at an upper end thereof, the connecting flange (81) has an L-shaped notch (85) into which a connector (5) protruding downward from a bottom surface (23) of the casing (1) is inserted, and the L-shaped notch (85) includes a first slit (85a) opening to an inner end of the connecting flange (81) and extending outward from the inner end of the connecting flange (81), and a second slit (85b) bent and extending from an outer end of the first slit (85a).
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公开(公告)号：US11925908B2
公开(公告)日：2024-03-12
申请号：US17805514
申请日：2022-06-06
申请人： RINNAI CORPORATION
发明人： Tomoyuki Shimazu , Kunio Kataoka
IPC分类号： B01F3/04 , B01F23/232 , B01F23/2373 , B01F25/10 , B01F25/432 , B01F25/433 , B01F25/00
CPC分类号： B01F23/232 , B01F23/2373 , B01F25/103 , B01F25/4323 , B01F25/4335 , B01F2025/913 , B01F2025/916
摘要： A fine bubble generator may include an inlet; an outlet; a first fine bubble generation portion; and a second fine bubble generation portion. The first fine bubble generation portion includes: a diameter-reducing flow path and a diameter-increasing flow path. The second fine bubble generation portion includes: a first swirling flow generation portion; and a second swirling flow generation portion. The first swirling flow generation portion includes: a first outer peripheral portion; and a plurality of first vanes disposed configured to generate a first swirling flow flowing in a first swirling direction with respect to a center axis of the second fine bubble generation portion. The second swirling flow generation portion includes: a second outer peripheral portion; and a plurality of second vanes configured to generate a second swirling flow flowing in a second swirling direction opposite to the first swirling direction with respect to the center axis.
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公开(公告)号：US20240077894A1
公开(公告)日：2024-03-07
申请号：US18351799
申请日：2023-07-13
申请人： RINNAI CORPORATION
发明人： Kazuyuki Shichi , Kunio Kataoka
IPC分类号： G05D16/16
CPC分类号： G05D16/163
摘要： In a gas governor, an auxiliary chamber divided by a separating wall from a main chamber that is a portion of the secondary pressure chamber is provided in the secondary pressure chamber, the auxiliary chamber communicates with the main chamber through a communicating passage, the separating wall is positioned at a portion away in a circumferential direction from an outflow-port opened portion that is a peripheral wall portion of the secondary pressure chamber, in which the outflow port is opened, and the separating wall is provided so that a distance from a valve hole and a curvature in the circumferential direction of at least an end portion of the separating wall, which is close to the valve seat, are equal to those of an end portion of the outflow-port opened portion, which is close to the valve seat.
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公开(公告)号：US20230390713A1
公开(公告)日：2023-12-07
申请号：US18322087
申请日：2023-05-23
申请人： RINNAI CORPORATION
发明人： Yu OKANO
IPC分类号： B01F23/232 , B01F23/2373 , B01F25/421
CPC分类号： B01F23/232 , B01F25/4231 , B01F23/2373
摘要： A fine bubble generating nozzle may include a nozzle unit and a baffle. The nozzle unit may include: an inlet; a pressure decreasing portion configured to decrease a pressure of a gas-dissolved pressurized water introduced from the inlet; a first collision chamber disposed downstream of the pressure decreasing portion and including a first collision wall with which the gas-dissolved pressurized water introduced from the pressure decreasing portion collides so that a flow direction of the gas-dissolved pressurized water changes; a second collision chamber disposed downstream of the first collision chamber and including a second collision wall with which the gas-dissolved pressurized water having flowed through the first collision chamber collides so that the flow direction of the gas-dissolved pressurized water changes; and an outlet. The baffle may be disposed outside of the nozzle unit and is disposed at a position facing the outlet.
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公开(公告)号：US11826715B2
公开(公告)日：2023-11-28
申请号：US17805184
申请日：2022-06-02
申请人： RINNAI CORPORATION
发明人： Tomoyuki Shimazu
IPC分类号： B01F3/04 , B01F23/232 , B01F25/50 , B01F23/23 , B01F23/2373
CPC分类号： B01F23/2323 , B01F23/2366 , B01F23/2373 , B01F25/50
摘要： A fine bubble generator may include an inlet, an outlet, a first fine bubble generation portion including a first flow path, and a second fine bubble generation portion including a second flow path. The first flow path may include a diameter-reducing flow path and a diameter-increasing flow path. The second flow path may include a guide flow path and a collision flow path disposed downstream of the guide flow path. A first bearing and a first impeller rotatably attached to the first bearing may be disposed on the collision flow path. The first impeller may include a disc disposed at a position at which the gas-dissolved water collides with the disc; a first rotation shaft disposed on a downstream surface of the disc and rotatably attached to the first bearing; and one or more first vanes disposed on an upstream surface of the disc.
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公开(公告)号：US20230258330A1
公开(公告)日：2023-08-17
申请号：US18060229
申请日：2022-11-30
申请人： RINNAI CORPORATION
发明人： Katsuya Noritake , Takuya Miura
CPC分类号： F23D14/02 , C10K3/06 , C10L3/003 , C10L2290/24 , C10L2290/06 , C10L2290/145
摘要： In a premixing apparatus that mixes a fuel gas with air and supplies an air-fuel mixture to a burner through a fan, includes a main valve, a zero governor, and a variable throttle valve which are interposed from an upstream side downward in sequence in a gas supply passage, of which an downstream end is connected to a gas suction part that is provided in an air supply passage on an upstream side of a fan, and carries out a first control that regulates an opening degree of the variable throttle valve so that an excess air ratio of the air-fuel mixture, which is indexed based on a flame current that is detected by a flame rod which is exposed in flames of the burner, and a second control that, at time of a post-purge operation, if the flame rod detects the flame current, it will be decided that an open trouble of the main valve occurs and the opening degree of the throttle valve will be tightened till a minimum opening-degree which is set so that the burner is extinguished.
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公开(公告)号：US11578866B2
公开(公告)日：2023-02-14
申请号：US17233779
申请日：2021-04-19
申请人： RINNAI CORPORATION
发明人： Kazuyuki Akagi
摘要： An outer peripheral edge part of the air-fuel mixture permeable member is connected to a portion away outward by a predetermined distance from an inner peripheral edge of the burner frame. Between the burner frame and the air-fuel mixture permeable member a clearance reaching the inner peripheral edge of the burner frame is secured at a position inward of the outer peripheral part of the air-fuel mixture permeable member. Preferably, a bent edge part formed on an inner peripheral edge of the burner frame, in a manner to be bent toward the air-fuel mixture permeable member. The amount of the air-fuel mixture to flow into the clearance is limited to a smaller amount.
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公开(公告)号：US11365940B2
公开(公告)日：2022-06-21
申请号：US16674020
申请日：2019-11-05
申请人： Rinnai Corporation
发明人： Takashi Ojiro , Takahiro Ono
摘要： The plate-type heat exchanger includes blocks stacked on each other, each of the blocks including a heat exchanger body configured to exchange heat between a first fluid and a second fluid. A connection passage for the first fluid is formed between blocks adjacent to each other of the plurality of blocks, the connection passage allowing the outlet of one of the blocks adjacent to each other and the inlet of the other of the blocks adjacent to each other to communicate with each other, the first fluid in the blocks adjacent to each other having different flow directions between the blocks adjacent to each other, and a second connection passage is provided between at least one pair of blocks adjacent to each other among the plurality of blocks, the second connection passage being configured to cause the first fluid to flow to a position different from the connection passage.
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70.发明授权公开(公告)号：US11313589B2
公开(公告)日：2022-04-26
申请号：US16997056
申请日：2020-08-19
申请人： RINNAI CORPORATION
发明人： Rikiya Yuge
摘要： The water heater may be configured to execute a normal operation in which a heating means is continuously operated in an ON state in a case where a required heat quantity is greater than or equal to a minimum heat quantity. The water heater may be configured to execute an intermittent operation in which the heating means is alternately and repeatedly operated in the ON state and an OFF state repeatedly in a case where the required heat quantity is less than the minimum heat quantity. The water heater may be configured to change a distribution ratio of a flow control mechanism in the normal operation and in the intermittent operation. An operating speed of the flow control mechanism in the intermittent operation may be faster than an operating speed of the flow control mechanism in the normal operation.
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