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公开(公告)号：US11292711B1
公开(公告)日：2022-04-05
申请号：US17484591
申请日：2021-09-24
发明人： Stefan Kunter , Sebastian Viets
摘要： The subject of the invention is a dispensing nozzle for dispensing a fluid into a tank of a motor vehicle. The dispensing nozzle comprises the following features: the dispensing nozzle comprises a channel (30) for passing through the fluid, wherein a main valve (5) is arranged in the channel (30), said main valve being movable between a closed position and an open position for controlling a fluid flow, the dispensing nozzle comprises a first maximum volumetric flow rate and a second maximum volumetric flow rate, wherein the second maximum volumetric flow rate is greater than the first, According to the invention it is provided that the dispensing nozzle comprises an adjustable flow limiter (22) which is arranged downstream of the main valve (5) and which is configured to limit the fluid flow selectively to the first or second maximum volumetric flow rate. The dispensing nozzle also comprises an actuating device (20, 21) which is configured for interaction with a signal element (29) which is assigned to the tank of the motor vehicle and for the selective adjustment of the flow limiter (22) to the first or the second maximum volumetric flow rate. By the provision of a flow limiter which is adjustable due to an interaction with the signal element, a rapid and reliable filling of different-sized containers containing liquid is ensured in a structurally simple manner.
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公开(公告)号：US20240279047A1
公开(公告)日：2024-08-22
申请号：US18569036
申请日：2022-06-13
IPC分类号： B67D7/48
CPC分类号： B67D7/48
摘要： The invention relates to a filling nozzle, comprising an inlet (13) for the connection of a fluid supply line, an outlet (14) for dispensing the fluid, a fluid channel (15) connecting the inlet to the outlet, a main valve (16) which is situated in the fluid channel (15) and which is biased against a valve seat into a closed position, a hand lever (17) for actuating the main valve (16), and a coupling device (22) which is operatively connected to the hand lever (17) and which, in the coupled state, is designed to convert a movement of the hand lever (17) into an actuation of the main valve (16), wherein the main valve (16), in the uncoupled state, is urged into the closed position independently of the position of the hand lever (17). The filling nozzle also has a membrane (26) which separates a first membrane space (27) from a second membrane space (28) and which can be moved to actuate the coupling device (22) by means of a pressure difference existing between the first membrane space (27) and the second membrane space (28). A vacuum can be applied to the first membrane space (27), wherein a sensor line (19) opens into the first membrane space (27). According to the invention, the second membrane space (28) is sealed with respect to the fluid channel (15) and is fluidically connected via a ventilation channel (29) to the surroundings outside the filling nozzle, wherein the fluid flows around a part of the coupling device (22) situated outside the second membrane space (28) when the main valve (16) is opened. The reliability of the triggering of the coupling device can be considerably improved in this way.
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公开(公告)号：US11543063B2
公开(公告)日：2023-01-03
申请号：US17608520
申请日：2020-05-04
发明人： Ulrich Meyer
IPC分类号： F16L37/30 , F16L37/084 , F16L55/10 , F16L37/40
摘要： A breakaway coupling for connecting two fluid lines, comprising a first coupling part (3) which can be connected to the first fluid line and a second coupling part (4) which can be connected to the second fluid line. The coupling parts (3, 4) can be disconnected from one another by way of a defined disconnecting force, wherein at least one of the coupling parts (3, 4) has an outflow prevention valve (20) with a valve seat (21) and with a sealing body (14) which is configured for interaction with the valve seat (21). The outflow prevention valve (20) has a hold-open element (16) which is configured to enable a passage of the fluid in the joined-together state of the coupling parts (3, 4). The outflow prevention valve (20) is configured to prevent an outflow of the fluid from at least one of the fluid lines in the disconnected state of the coupling parts (3, 4). The breakaway coupling has an anti-rotation safeguard which, during operation of the coupling, prevents a rotation of the first coupling part (3) and the second coupling part (4) with respect to one another. According to the invention, the valve seat (21) has a bearing surface (24) for the sealing body (14), wherein a compensatory element (25) is arranged in the region of the bearing surface (24), which compensatory element (25) consists of a material which has a lower hardness than the material of the valve seat (21) and/or than the material of the sealing body (14).
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公开(公告)号：US11505448B2
公开(公告)日：2022-11-22
申请号：US17289879
申请日：2019-10-28
摘要： The invention relates to a device for discharging a first fluid and for returning a second fluid, comprising a main channel (13) for discharging the first fluid and a return channel (14) for returning the second fluid. According to the invention, a test channel (15) is provided which connects the main channel (13) to the return channel (14), the main channel (13) having a narrowing (16) and the test channel (15) issuing into the main channel (13) in the region of the narrowing (16). The device further has a sensor (17) which is designed to determine a pressure in the test channel (15). The invention further relates to an outflow tube, a delivery nozzle and a delivery pump having a device according to the invention. With the aid of the invention, active return of the second fluid can be shut off in a simple and safe manner.
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公开(公告)号：US20220348452A1
公开(公告)日：2022-11-03
申请号：US17761259
申请日：2020-09-16
发明人： Ulrich MEYER
IPC分类号： B67D7/50
摘要： The invention relates to a nozzle (13) for dispensing a fluid, comprising a manually operated control lever (15), which can be moved between a closed position and an open position in order to control the dispensing of the fluid.
According to the invention, the control lever (15) comprises a latching pawl (23), which is designed to engage in a slotted guide (22) of the nozzle (13), the latching pawl (23) being designed to follow an opening movement of the control lever (15) in an opening direction (18) and a closing movement of the control lever (15) in a closing direction (18), the latching pawl (23) being able to be moved, by cooperation with the slotted guide (22), relative to the control lever (15) in a direction perpendicular to the opening and closing direction (18) into a catch position (25), in which the latching pawl (23) fixes the control lever (15) in the open position. Because of the interaction of the latching pawl (23) and the slotted guide (22), a locking device that is easy for the user to operate is created for the control lever by means of a simple design.-
公开(公告)号：US20220146030A1
公开(公告)日：2022-05-12
申请号：US17608520
申请日：2020-05-04
发明人： Ulrich MEYER
IPC分类号： F16L37/30 , F16L37/084
摘要： A breakaway coupling for connecting two fluid lines, comprising a first coupling part (3) which can be connected to the first fluid line and a second coupling part (4) which can be connected to the second fluid line. The coupling parts (3, 4) can be disconnected from one another by way of a defined disconnecting force, wherein at least one of the coupling parts (3, 4) has an outflow prevention valve (20) with a valve seat (21) and with a sealing body (14) which is configured for interaction with the valve seat (21). The outflow prevention valve (20) has a hold-open element (16) which is configured to enable a passage of the fluid in the joined-together state of the coupling parts (3, 4). The outflow prevention valve (20) is configured to prevent an outflow of the fluid from at least one of the fluid lines in the disconnected state of the coupling parts (3, 4). The breakaway coupling has an anti-rotation safeguard which, during operation of the coupling, prevents a rotation of the first coupling part (3) and the second coupling part (4) with respect to one another. According to the invention, the valve seat (21) has a bearing surface (24) for the sealing body (14), wherein a compensatory element (25) is arranged in the region of the bearing surface (24), which compensatory element (25) consists of a material which has a lower hardness than the material of the valve seat (21) and/or than the material of the sealing body (14).
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公开(公告)号：US20220204336A1
公开(公告)日：2022-06-30
申请号：US17289879
申请日：2019-10-28
摘要： The invention relates to a device for discharging a first fluid and for returning a second fluid, comprising a main channel (13) for discharging the first fluid and a return channel (14) for returning the second fluid. According to the invention, a test channel (15) is provided which connects the main channel (13) to the return channel (14), the main channel (13) having a narrowing (16) and the test channel (15) issuing into the main channel (13) in the region of the narrowing (16). The device further has a sensor (17) which is designed to determine a pressure in the test channel (15). The invention further relates to an outflow tube, a delivery nozzle and a delivery pump having a device according to the invention. With the aid of the invention, active return of the second fluid can be shut off in a simple and safe manner.
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公开(公告)号：US20220098024A1
公开(公告)日：2022-03-31
申请号：US17484591
申请日：2021-09-24
发明人： Stefan Kunter , Sebastian Viets
摘要： The subject of the invention is a dispensing nozzle for dispensing a fluid into a tank of a motor vehicle. The dispensing nozzle comprises the following features: the dispensing nozzle comprises a channel (30) for passing through the fluid, wherein a main valve (5) is arranged in the channel (30), said main valve being movable between a closed position and an open position for controlling a fluid flow, the dispensing nozzle comprises a first maximum volumetric flow rate and a second maximum volumetric flow rate, wherein the second maximum volumetric flow rate is greater than the first, According to the invention it is provided that the dispensing nozzle comprises an adjustable flow limiter (22) which is arranged downstream of the main valve (5) and which is configured to limit the fluid flow selectively to the first or second maximum volumetric flow rate. The dispensing nozzle also comprises an actuating device (20, 21) which is configured for interaction with a signal element (29) which is assigned to the tank of the motor vehicle and for the selective adjustment of the flow limiter (22) to the first or the second maximum volumetric flow rate. By the provision of a flow limiter which is adjustable due to an interaction with the signal element, a rapid and reliable filling of different-sized containers containing liquid is ensured in a structurally simple manner.
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公开(公告)号：US10988370B2
公开(公告)日：2021-04-27
申请号：US15910227
申请日：2018-03-02
发明人： Stefan Kunter , Heinz-Ulrich Meyer
摘要： The invention concerns a delivery valve for the delivery of a fluid into a tank of a motor vehicle. According to the invention, the following is provided: a) the delivery valve has a first settable maximum volume flow, b) the delivery valve has a second settable maximum volume flow which is higher than the first settable maximum volume flow, c) a control device (24, 25), by means of which optionally the first or the second maximum volume flow can be set, d) a sensor device (20, 21), which is configured for interaction with a signal emitter (29) assigned to the tank of the motor vehicle and which activates the control device.
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公开(公告)号：US20240217804A1
公开(公告)日：2024-07-04
申请号：US18563011
申请日：2022-05-19
发明人： Stefan KUNTER , Torben SCHÖRCK , Jörg DUUS
摘要： The invention relates to an assembly comprising a flexible hose (16) and a control unit (17), a heating wire (27, 28) being guided along an axial direction of the hose and embedded. The control unit is designed to deliver electrical power to the heating wire, in order to heat a medium conveyed by the dispensing hose or an outer surface of the hose. The invention also relates to a dispensing system (13, 13′) for delivering an aqueous urea solution and/or for delivering a compressed or liquefied gas. The dispensing system comprises a conveying device for the operating fluid, a dispensing valve (15) for discharging the operating fluid, and a flexible dispensing hose (16) which connects the conveying device to the dispensing valve to allow positioning of the dispensing valve on a filler neck of a vehicle tank. The dispensing hose has a hose wall in which a heating wire (27, 28) guided along an axial direction of the dispensing hose is embedded. The dispensing hose and the dispensing valve are designed to be operated in a zone 1 according to the ATEX Workplace Directive 1999/92/EC, the dispensing system having an installation space designed for shielding with respect to a zone according to the ATEX Workplace Directive 1999/92/EC and a control unit which is positioned in this installation space and is designed to deliver electrical power to the heating wire in order to heat an operating fluid conveyed by the dispensing hose. Freezing of the operating fluid can be avoided by these measures in an economical and failsafe manner.
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