公开(公告)号：EP4226995A1

公开(公告)日：2023-08-16

申请号：EP23151042.1

申请日：2023-01-11

申请人： Bosch Thermotechnology Ltd (UK)

发明人： Collins, Tom ,  Hemmen, Patrick

IPC分类号： B01F25/312 ,  F23D14/62 ,  B01F23/10

摘要： An air-gas mixing unit (500) comprising an air-gas mixer (600) and a bluff body plate (505), wherein the air-gas mixer comprises a main flow passage (410) with an inlet end (120) for inlet of a first fluid and at least one lateral inlet opening for inlet of a second fluid, and wherein the bluff body plate (505) comprises at least one first bluff body arrangement (510) with at least one first bluff body (151), and at least one second bluff body arrangement (520) with at least one second bluff body (551), the at least one first bluff body (151) being adapted to enable creation of low pressure with a first degree of turbulence of the first fluid, and the at least one second bluff body (551) being adapted to enable creation of low pressure with a second degree of turbulence of the first fluid.

公开(公告)号：EP4191135A1

公开(公告)日：2023-06-07

申请号：EP22202352.5

申请日：2022-10-19

申请人： Bosch Thermotechnology Ltd (UK)

发明人： Collins, Tom ,  Hemmen, Patrick ,  Beazley, Benjamin

IPC分类号： F23N1/00

摘要： In an air-gas mixing unit for an air-gas mixture burning appliance, comprising: at least one air-gas mixer (118), an air supply (112) with an airway (212), and a gas supply (116) with a gas channel (216) that is connected to a gas governor (210), wherein the gas governor comprises: a gas valve (215) that is adapted to control gas pressure in the gas channel (216) dependant on an air pressure signal (235) that is indicative of a static air pressure in the air way, and a gas restrictor (250) that restricts flow of gas from the gas valve to a point of mixing (119); the gas restrictor is interchangeable between at least one first gas restrictor that is embodied to form a gas flow with a first Reynolds number and at least one second gas restrictor that is embodied to form a gas flow with a second Reynolds number.

公开(公告)号：EP4083504A1

公开(公告)日：2022-11-02

申请号：EP22169638.8

申请日：2022-04-25

申请人： Bosch Thermotechnology Ltd (UK)

发明人： Hemmen, Patrick ,  Collins, Tom

IPC分类号： F23D14/62

摘要： In a two-stage air-gas mixing unit (110) that comprises an air inlet (113), an air flow channel (250), a gas inlet (117), an air-gas outlet (132), a gas valve (240), a first stage air-gas mixer (210), and a second stage air-gas mixer (220), the gas valve (240) being adapted for regulating a flow of gas (119) based on the pressure of a flow of the air (111) received at a reference pressure port (242), the first stage air-gas mixer (210) being adapted for mixing the gas (119) from the gas valve (240) with a first portion of the air (111) to form a preliminary air-gas mixture (230), and the second stage air-gas mixer (220) being adapted for mixing a second portion of the air (111) with the preliminary air-gas mixture (230) from the first stage air-gas mixer (210) to form a combustible air-gas mixture (130).

公开(公告)号：EP3919815A1

公开(公告)日：2021-12-08

申请号：EP21174879.3

申请日：2021-05-20

申请人： Bosch Thermotechnology Ltd (UK)

发明人： Collins, Tom ,  Hemmen, Patrick ,  Buta, Dom

IPC分类号： F23D14/62 ,  F23D14/70 ,  B01F5/04 ,  B05B1/00

摘要： A Venturi-type mixing nozzle (100) with a nozzle body (105) that comprises a main flow passage (110) having an inlet end (120) and an outlet end (130), wherein a first fluid (210) enters the main flow passage (110) via the inlet end (120), the main flow passage (110) comprising a passage constriction (140) between the inlet end (120) and the outlet end (130) for creation of a negative pressure region (125) in the main flow passage (110), wherein the passage constriction (140) comprises at least one lateral inlet opening (220, 221) through which a second fluid (230) enters the main flow passage (110) for being mixed with the first fluid (210) in the main flow passage (110), and wherein at least one bluff body (150, 151) is arranged in the main flow passage (110).