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1. 发明公开

US20240328621A1 Method and Controller for Operating a Gas Burner Appliance 审中-公开
公开(公告)号：US20240328621A1
公开(公告)日：2024-10-03
申请号：US18579207
申请日：2022-07-11
申请人： PITTWAY SARL
发明人： Wim Munsterhuis , Andreas Kammerahl , Gerrit Jan Baarda , Clemens Metker , Martin Petersmann , Anton Quatmann , Ulrich Oldehus , Sebastian Schengber
IPC分类号： F23N5/24 , F23N1/02
CPC分类号： F23N5/242 , F23N1/022 , F23N2231/12 , F23N2235/16
摘要： Method for operating a gas burner appliance (10). the gas burner appliance (10) comprising: a combustion chamber (11) in which a defined gas/air mixture is combusted. a mixing device (23) to provide said gas/air mixture. a gas safety valve unit (19) assigned to the gas duct (16) to open or close the gas duct (16) having a first gas safety valve (19a) and a second gas safety valve (19b) positioned downstream of the first gas safety valve (19a). a gas flow modulator (18) assigned to the gas duct (16), an electrical or electronic absolute pressure sensor (21) positioned downstream of the first gas safety valve (19a). wherein the gas burner appliance (10) goes into lockout state if a defined number of burner-start-ups of the gas burner appliance (10) failed. namely did not result into a combustion, and wherein the gas burner appliance (10) is operated by executing the following steps to provide an electrical or electronic pressure-switch functionality: Before each burner-start-up of the gas burner appliance (10) measuring a first absolute pressure by the absolute pressure sensor (21) when the first gas safety valve (19a) is closed. During each burner-start-up of the gas burner appliance (10) measuring a second absolute pressure by the absolute pressure sensor (21) when the first gas safety valve (19a) is opened, determining a pressure difference between the first and second absolute pressure, and comparing the pressure difference with a threshold. A lockout of gas burner appliance (10) is allowed or prevented on basis of the comparison of the pressure difference with the threshold.

2. 发明公开

US20240247725A1 FLOW MODULATOR FOR A FLUID 审中-公开
公开(公告)号：US20240247725A1
公开(公告)日：2024-07-25
申请号：US18560345
申请日：2022-05-23
申请人： PITTWAY SARL
发明人： Clemens Metker , Martin Petersmann , Anton Quatmann , Ulrich Oldehus , Sven Boller
IPC分类号： F16K3/08 , F16K31/04 , F16K31/53 , F23D14/46
CPC分类号： F16K3/08 , F16K31/535 , F16K31/043 , F23D14/46
摘要： Flow modulator (10) for a fluid like combustion gas, comprising: a modulator body (11) having a channel (14) providing a flow passage (20) for the fluid: a valve body (17) having an opening (18) providing another flow passage (19) for the fluid: an actuator (21) by which the valve body (17) is rotatably displaceable relative to the modulator body (11) to modulate the fluid flow by changing the overlap between the opening (18) or flow channel (19) of the valve body (17) and the channel (14) or flow passage (20) of the modulator body (11); a gear transmission (22), wherein an input side of the gear transmission (22) is in operative connection with the actuator (21) having a fixed axis of rotation (23), and wherein an output side of the gear transmission (22) is in operative connection with the valve body (17) having a translationally displaceable axis of rotation (24).

3. 发明公开

US20240200566A1 SEALING ASSEMBLY FOR A SHAFT PASSAGE OPENING FOR A FAN 审中-公开
公开(公告)号：US20240200566A1
公开(公告)日：2024-06-20
申请号：US18555579
申请日：2022-04-04
申请人： Pittway Sarl
发明人： Kay Jarysek , Martin Petersmann , Gerrit Wascher , Martin Koelker
IPC分类号： F04D29/10 , F04D29/059 , F04D29/08
CPC分类号： F04D29/102 , F04D29/059 , F04D29/083
摘要： The present disclosure describes a sealing assembly (100) for sealing a shaft (150) passage opening (141) comprising: a rotatable motor shaft (150) with at least one bearing (161) which is supported by at least one bearing support (170), a motor plate (140) with a passage opening (141) for the motor shaft (150) with the at least one bearing (161), a seal (110) having a first scaling portion (111) and a second scaling portion (112), wherein the first sealing portion (111) is arranged between at least a portion of an outer peripheral surface of the at least one bearing (161) and a portion of the bearing support (170); and the second scaling portion (112) extends radially outwardly in a direction away from the motor shaft (150) and is fixed against radial and axial displacements on the motor plate (140) by fixing means, wherein the second sealing portion (112) is spaced from an edge of the passage opening (141).

4. 发明公开

US20240183733A1 Separating Pressure Transducer for Measuring Pressure in a Polluted Environment 审中-公开
公开(公告)号：US20240183733A1
公开(公告)日：2024-06-06
申请号：US18553060
申请日：2022-03-28
申请人： PITTWAY SARL
发明人： Pavel Kejik , Petr Koblizek , Martin Klima , Jaroslav Volavy , Fabio Mariani , Alita Nichols , Mohammad A. Aljabari
IPC分类号： G01L19/00 , B33Y80/00 , G01L19/06
CPC分类号： G01L19/0007 , B33Y80/00 , G01L19/0627
摘要： There is provided a pressure sensing device comprising a first elongated hollow member comprising a first opening located at a first end of the first elongated hollow member: a second opening located at a second end opposite to the first end of the elongated hollow member: a third opening located at between the first and the second end of the first elongated hollow member. The pressure sensing device further comprises a second elongated hollow member, the second elongated hollow member being connected to the first elongated hollow member via the third opening, wherein the first opening being configured to connect the inside of the second elongated member to the inside of a third hollow member: one of the free end of the second elongated member or third opening configured to open out to external atmospheric pressure through an aperture: and a pressure sensing element being connected to the other one of the free end of the second elongated member or the third opening. There is also provided a method for measuring pressure using the pressure sensing device.

5. 发明申请

US20230139829A1 Mounting Clip to Mount an Actuator Unit to a Valve Unit and Assembly Having an Actuator Unit, a Valve Unit and a Mounting Clip 有权
公开(公告)号：US20230139829A1
公开(公告)日：2023-05-04
申请号：US17996137
申请日：2021-04-12
申请人： PITTWAY SARL
发明人： Petr Kusala , Jiri Vechet , Petr Svejnoha
IPC分类号： F16B2/24 , F16K27/00 , F16K31/00
摘要： Mounting clip (30) to mount an actuator unit (20) to a valve unit (10), the valve unit having a valve unit housing (11) and flange (12) formed at the valve unit housing (11), the actuator unit having an actuator unit housing (21) and a shoulder (22) formed at the actuator unit housing (21). The mounting clip has first sections (31) positioned in first level (32), wherein said first sections (31) are straight and run parallel to each other within said first level (32), and wherein said first sections (31) are configured to be inserted into rooves (25) provided at the shoulder (22) of the actuator unit. The mounting clip has a second section (33) positioned in a second level (34), wherein said second section (33) is U-shaped, and wherein said second section (33) is configured to be inserted into a recess (15) provided at the flange (12) of the valve unit. The mounting clip has third sections (35) extending between each of said first sections (31) and the second section (33), wherein each of said third sections (35) has a first subsections (35a) being bent, a second subsection (35b) being bent and a third subsection (35c) being straight or angled, wherein the first subsections (35a) of the third sections (35) extend between the first sections (31) and the third subsections (35c) of the third sections (35), wherein the second subsections (35b) of the third sections (35) extend between the second section (33) and the third sub-sections (35c) of the third sections (35).

6. 发明申请

US20210364165A1 METHOD AND CONTROLLER FOR OPERATING A GAS BURNER APPLIANCE 有权
公开(公告)号：US20210364165A1
公开(公告)日：2021-11-25
申请号：US17242773
申请日：2021-04-28
申请人： Pittway Sarl
发明人： Sybrandus B.V. Munsterhuis , Gerrit Jan Baarda , Andreas Kammerahl , Martin Petersmann , Anton Quatmann , Ulrich Oldehus , Clemens Metker
IPC分类号： F23N1/02
摘要： In some examples, a method for operating a gas burner appliance includes determining, on basis of a nominal burner-load and on basis of a mixing ratio of gas and air of a gas/air mixture or a λ-value of the gas/air mixture, a nominal air mass flow in order to provide the nominal burner-load. The method further comprises determining the ambient air pressure and the ambient air temperature of the ambient air, determining, on basis of the ambient air pressure and on basis of the ambient air temperature, the atmospheric density of the ambient air, determining on basis of the nominal air mass flow, on basis of the determined atmospheric density of the ambient air, and on basis of a system resistance of the gas burner appliance, the fan speed of the fan in order to provide the nominal burner-load.

7. 发明申请

US20210246996A1 PRESSURE REDUCING VALVE AND METHOD FOR OPERATING THE SAME 有权
公开(公告)号：US20210246996A1
公开(公告)日：2021-08-12
申请号：US17168661
申请日：2021-02-05
申请人： Pittway Sarl
发明人： Dominik Ernst
IPC分类号： F16K31/385 , F16K7/17
摘要： A pressure reducing valve and a method for operating the pressure reducing valve. The pressure reducing valve may be used in a potable water system. The pressure reducing valve can be used for gaseous media and liquid media. Preferably, the pressure reducing valve is intended for use with liquid media, most preferably for potable water.

8. 发明公开

US20240230084A1 METHOD AND CONTROLLER FOR OPERATING A GAS BURNER APPLIANCE AND GAS BURNER APPLIANCE 审中-公开
公开(公告)号：US20240230084A1
公开(公告)日：2024-07-11
申请号：US18560219
申请日：2022-05-12
申请人： PITTWAY SARL
发明人： Wim Munsterhuis , Gerrit Jan Baarda , Andreas Kammerahl , Martin Petersmann , Anton Quatmann , Ulrich Oldehus , Clemens Metker
IPC分类号： F23N1/02 , F23N5/24
CPC分类号： F23N1/022 , F23N5/242 , F23N2225/06 , F23N2235/16 , F23N2237/10
摘要： Method for operating a gas burner appliance (10), the gas burner appliance com-prising: a combustion chamber (11) in which a defined gas/air mixture is combusted after combustion has been started; a mixing device (25) to provide said gas/air mixture by mixing an air flow provided by an air duct (15) with a gas flow provided by a gas duct (16); a fan (14) to provide the air flow or the flow of the gas/air mixture; a gas safety valve unit (19) assigned to the gas duct to open or close the gas duct; a gas flow modulator (18) or a gas flow regulator (28) assigned to the gas duct to keep a mixing ratio of the defined gas/air mixture constant over the modulation range of the gas burner appliance; an absolute pressure sensor (21) positioned between the gas safety valve unit and the mixing device, wherein the gas burner appliance is operated to determine the air flow resistance of the same by executing the following steps before combustion becomes started: Measuring a first absolute pressure by the absolute pressure sensor (21) when the gas safety valve unit (19) is closed and when the fan (14) is stopped. Measuring a second absolute pressure by the absolute pressure sensor (21) when the gas safety valve unit (19) is closed and when the fan (14) is running. Determining a pressure difference between the first absolute pressure and the second absolute pressure. Determining on basis of the pressure difference the air flow resistance of the gas burner appliance.

9. 发明授权

US11708972B2 Gas/air mixing device of a gas burner 有权
公开(公告)号：US11708972B2
公开(公告)日：2023-07-25
申请号：US17323607
申请日：2021-05-18
申请人： Pittway Sarl
发明人： Sybrandus B. V. Munsterhuis , Li Hong Rao , Guan Jun Liu
IPC分类号： F23D14/62 , F23D14/36 , F23L5/02
CPC分类号： F23D14/62 , F23D14/36 , F23L5/02 , F23D2900/14642
摘要： In some examples, a gas/air mixing device configured to mix gas and air to provide a gas/air mixture includes a mixer housing with a mounting flange being configured to mount the gas/air mixing device to a fan housing in such a way that a sealing surface of the mounting flange is in contact with a sealing surface of the fan housing. In some examples, the sealing surface of the mounting flange has grooves with a second radius being different from the first radius. In some examples, the sealing surface of the fan housing has a groove, with a second radius being different from the first radius. The mixer housing provides an inlet opening for air, an inlet opening for gas, and an outlet opening for the gas/air mixture. The sealing surface of the mounting flange surrounds the outlet opening of the mixer housing.

10. 发明公开

US20230194379A1 METHOD FOR MICRO-LEAKAGE DETECTION IN A FLUID SYSTEM AND MICRO-LEAKAGE DETECTION APPARATUS 审中-公开
公开(公告)号：US20230194379A1
公开(公告)日：2023-06-22
申请号：US17999078
申请日：2021-05-05
申请人： PITTWAY SARL
发明人： Libor Seda , Jaroslav Svoma , Vaclav Prajzner
IPC分类号： G01M3/26
CPC分类号： G01M3/26
摘要： Method for micro-leakage detection in a fluid system (10), preferably in a potable water system installed in a building (11), wherein the fluid system (10) has a fluid pipe (12) with a fluid valve (14), wherein a fluid flow through the fluid pipe (12) is stopped when the fluid valve (14) is closed, and wherein a fluid flow through the fluid pipe (12) is allowed when the fluid valve (14) is opened. The method comprises the following steps: Measuring the fluid flow through the fluid pipe (12) by a flow meter (16). Measuring the pipe temperature of the fluid pipe (12) by at least one pipe temperature sensor (17a, 17b). When there is no fluid flow measured by the flow meter (16), particularly because or when the fluid flow through the fluid pipe (12) is stopped by the fluid valve (14) being closed, analyzing the pipe temperature for the micro-leakage detection.

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