Device for expelling the gaseous component from a fluid flow

Abstract

A device (100) for expelling a gaseous component from a fluid flow comprising a main body (1) defining a cavity (10) therein, a main interface (11), a draining interface (12) extending between a first opening (121) and a second opening (122), a by-pass channel (14) open onto the cavity and the channel. The device comprises a float-shutter assembly (2, 3), movable between a closed position (P0) and an open position (P1) of the first opening, and a configuration element (4) movably housed in the channel. The device is configurable in at least one automatic draining configuration (C1), in which the configuration element keeps the first opening open and closes the by-pass channel, and one manual draining configuration (C2), in which the configuration element keeps at least the by-pass channel open.

Description

[0001] DESCRIPTION

[0002] DEVICE FOR EXPELLING THE GASEOUS COMPONENT FROM A FLUID FLOW’

[0003] FIELD OF THE FINDING

[0004] The present invention relates to a device for expelling the gaseous component from a fluid flow. The present invention can be applied in the context of domestic and / or industrial hydraulic systems, for example heating systems or sanitary water systems. In particular, the device according to the present invention can be associated with a component of a hydraulic system, for example a pipeline, to remove the gaseous component present in the fluid flow circulating within the hydraulic system itself.

[0005] In addition, the present invention relates to a hydraulic system comprising at least the aforementioned device for expelling the gaseous component from the circulating fluid flow.

[0006] The present invention also relates to a method of assembling the aforementioned device.

[0007] Furthermore, the present invention relates to a process of using the aforementioned device to expel the gaseous component from a fluid flow.

[0008] STATE OF THE ART

[0009] As is well known, the presence of a certain amount of a gaseous component in the fluid flow within a hydraulic system, such as a sanitary water system or a heating system, can be a problem for the proper functioning and safety of the components of that system. Specifically, the gaseous component typically consists mainly of air and can cause corrosion, lead to malfunctions or breakage of system components, reduce overall efficiency, and / or cause annoying noise. Therefore, it is preferable that the fluid flow within a hydraulic system consists almost exclusively of liquid components, such as technical water in the case of heating systems.

[0010] To overcome the above-mentioned problems, hydraulic systems are typically equipped with devices designed to expel the gaseous component present in the circulating fluid. These devices are commonly referred to as deaerators and are typically installed in the hydraulic system pipes to process the circulating liquid and eliminate any gaseous component present.

[0011] Depending on their functionality and technical characteristics, devices for expelling the gaseous component can come in different form.

[0012] A first category of devices for expelling the gaseous component from a fluid flow is represented by manual deaerators. This category of devices is configured to be operated manually in order to allow the gaseous component trapped in the pipes to escape. Essentially, manually operated deaerators are configured as vent valves that can be selectively opened, by means of a specific manual control, in order to check for the presence of a certain amount of air in the connected pipes and allow it to escape from the hydraulic system. Specifically, manually operated deaerators are particularly useful during the installation and maintenance of hydraulic systems, for example when filling the system with a liquid or mixture of liquids, or when a component malfunction or inefficiency is detected. A classic example of a manually operated deaerator is represented by the vent valves found in the radiators of residential heating systems. These vent valves allow the elimination of air bubbles accumulated in the radiating elements of the heating system by means of a manual control, typically the rotation of a rotary shutter. Specifically, the manual control is operated by a user, who monitors the flow coming out of the vent valve to detect the presence of air. Once the flow expelled from the vent valve is completely liquid, it can be deduced that the accumulated gaseous component has been completely eliminated and the manual control can be operated again to close the deaerator.

[0013] Another category of devices for expelling the gaseous component from a fluid flow is represented by automatic deaerators. Specifically, these devices are configured to maintain the hydraulic system in ideal operating conditions, ensuring continuous monitoring of the fluid flow and the timely elimination of any gaseous component that may be present. Typically, automatic deaerators consist of a main body that is connected to a conduit of the hydraulic system to be affected by the circulating fluid flow. Inside the main body, a float is housed that controls the opening and closing of a vent on the walls of the main body itself. Specifically, when the fluid flow affecting the main body of the deaerator consists solely of liquid, the float is pushed to a position that ensures the closure of the vent. Conversely, when the fluid flow affecting the main body of the deaerator is composed at least in part of a gaseous component (e.g., air), the float is pushed to a position that frees the vent and allows the air present in the main body to escape. In this way, the fluid flow is constantly in liquid form only and the formation of quantities of gaseous components that could cause malfunctions and / or breakages in the hydraulic system is prevented. In light of the above, automatic deaerators are particularly useful in the normal operation of the hydraulic system in which they are installed. In particular, automatic deaerators allow expelling the gaseous component that develops constantly, for example due to changes in fluid temperature and / or chemical reactions, and maintaining the hydraulic system in conditions of maximum efficiency.

[0014] Although the known devices are able to expel the gaseous component of the fluid flow satisfactorily, the Applicant has noted that both manual and automatic deaerators have their respective advantages only under certain conditions of the hydraulic system. As previously explained, manual deaerators are particularly useful during the installation of the hydraulic system or during maintenance operations following the detection of a malfunction or failure, but they do not prevent the formation of air bubbles during normal operation of the hydraulic system in which they are installed. On the contrary, automatic deaerators offer advantages during normal operation of the hydraulic system, promptly preventing the formation of considerable amounts of gas, but they perform suboptimally during installation or maintenance, when the circulating fluid contains a considerable amount of gaseous component.

[0015] In this sense, in order to allow efficient removal of the gaseous component from the fluid flow in almost all situations, hydraulic systems are equipped with both types of deaerators described above. In other words, known hydraulic systems are typically equipped with both a manually operated device for removing gas during installation and maintenance, and an automatic device for maintaining optimal conditions during system operation.

[0016] The provision of multiple devices configured to expel the gaseous component, each with different characteristics and functions, not only increases the overall cost of the hydraulic system, but also makes the installation of the hydraulic system more difficult and represents an additional source of malfunctions. In addition, the presence of a multitude of components with similar functions complicates the identification of the correct point where to operate to resolve any malfunction of the hydraulic system.

[0017] In light of the above, the Applicant has noted that known devices for expelling the gaseous component from a fluid flow perform optimally only under certain operating conditions of the hydraulic system in which the device is installed. Consequently, to date, it is necessary to equip the hydraulic systems with multiple deaerator devices in order to optimally manage the expulsion of the gaseous component from the fluid flow circulating in the hydraulic system itself.

[0018] PURPOSE OF THE FINDING

[0019] The general purpose of the present invention is therefore to solve at least one of the drawbacks and / or limitations of the previous solutions.

[0020] A purpose of the invention is to provide a device for expelling the gaseous component from a fluid flow that is effective in all operating conditions of the hydraulic system in which it is installed. In particular, the device according to the present invention allows effective expulsion of the gaseous component from the fluid flow both when the hydraulic system is in full operation and during the installation and / or maintenance phases of the system itself.

[0021] Another purpose of the present invention is to provide a device for expelling the gaseous component from a fluid flow that is particularly versatile.

[0022] It is also a purpose of the present invention to offer a device for expelling the gaseous component from a fluid flow that can be configured in multiple configurations. Specifically, each configuration that the device can assume is suitable for allowing optimal expulsion of the gaseous component from the fluid flow in a particular operating condition of the hydraulic system in which the device is installed.

[0023] Another purpose of the present invention is to provide a device for expelling the gaseous component from a fluid flow that is particularly versatile.

[0024] It is also a purpose of the present invention to offer a device for expelling the gaseous component from a fluid flow that can be configured in multiple configurations. Specifically, each configuration that the device can assume is suitable for allowing optimal expulsion of the gaseous component from the fluid flow in a particular operating condition of the hydraulic system in which the device is installed.

[0025] Another purpose of the present invention is to provide a device for expelling the gaseous component from a fluid flow in which the transition between the various configurations is particularly fast and practical.

[0026] A further purpose of the present invention is to provide a device for expelling the gaseous component from a fluid flow with a particularly simple and rational structure.

[0027] Another purpose of the present invention is to describe a device for expelling the gaseous component from a fluid flow with a competitive production cost.

[0028] A further purpose of the present invention is to provide a hydraulic system, in particular a water-sanitary system or a heating system, comprising the aforementioned device for expelling the gaseous component from the circulating fluid flow and therefore capable of effectively managing the discharge of any gaseous component that may be present.

[0029] Another purpose of the present invention is to describe a hydraulic system wherein the circulating fluid flow can be maintained in an exclusively liquid form, i.e. , substantially free of gas component.

[0030] Yet another purpose of the present invention is to provide a method of assembling the aforementioned device for expelling the gaseous component from a fluid flow. Specifically, the purpose of the present invention is to illustrate a method of assembling the aforementioned device that is convenient and easy to perform.

[0031] Another purpose of the present invention is to provide a method of using the aforementioned device to expel the gaseous component from a fluid flow.

[0032] A further purpose of the present invention is to provide a method of using the aforementioned device to expel the gaseous component from a fluid flow that is particularly effective and easy to perform. In particular, the purpose of the present invention is to provide a method of use that allows the fluid flow circulating within the hydraulic system where the device is installed to be kept in an exclusively liquid form, i.e., substantially free of gas components.

[0033] These purposes and any others that will become clearer in the course of the following description are essentially achieved by a device for expelling the gaseous component from a fluid flow, by a hydraulic system comprising the aforementioned device, by a method of assembling the aforementioned device, and by a method of using said device according to one or more of the attached claims, each of which taken alone (without the related dependencies) or in any combination with the other claims, as well as according to the following aspects and / or embodiments, variously combined, also with the aforementioned claims.

[0034] SUMMARY

[0035] According to a first aspect, the present invention relates to a device for expelling a gaseous component from a fluid flow. Specifically, the aforementioned device is configured to be installed within a hydraulic system for the purpose of allowing the expulsion of any gaseous component present in the fluid flow circulating within the hydraulic system itself. More specifically, said device is configured for being installed at a component of the hydraulic system, preferably a pipeline of said system, to intercept the circulating fluid flow and separate the liquid component of the fluid flow from the gaseous component, expelling the latter.

[0036] In the present document, the term "fluid flow” refers to a substance that may comprise both a liquid component and a gaseous component. By way of example, the liquid component of the fluid flow may be represented by water, while the gaseous component is represented by air. In the context of the hydraulic system wherein the device is installed, it is preferable that the circulating fluid flow is composed almost entirely of the liquid component, as the accumulation of significant quantities of the gaseous component in some of the components of the hydraulic system could compromise its correct functioning and / or give rise to corrosion and / or represent a risk of breakage and / or decrease overall efficiency and / or cause annoying noise. In an aspect, said device comprises a main body defining a cavity within itself. In an aspect, said main body comprises at least one main interface configured to connect said device to a component, in particular a pipeline, of a hydraulic system and to put said cavity in fluid communication with said component. In accordance with this aspect, said at least one main interface defines a main opening suitable for allowing an exchange of said fluid flow between said cavity and said component of the hydraulic system.

[0037] In an aspect, said main body comprises a draining interface configured to put said cavity in fluid communication with an external environment. In accordance with this aspect, said draining interface extends in said main body between a first opening, adapted to allow an outflow of a gaseous component of said fluid flow from said cavity, and a second opening, open to said external environment.

[0038] In an aspect, said main body comprises a by-pass channel extending between a first end open to said cavity and a second end open to said draining interface.

[0039] In an aspect, said device comprises a float-shutter assembly movably housed within said cavity. A position of said float-shutter assembly is determined by an amount of said gaseous component within said fluid flow in said cavity.

[0040] In the present description, the expressions "amount of said gaseous component within said fluid flow in said cavity,” or simply "amount of gaseous component in said cavity,” or even more simply "amount of gaseous component” refer to the accumulation of gaseous component, for example air, carried by the fluid flow circulating within the cavity. Once it has entered the cavity through the main opening, this gaseous component does not escape through the same main opening, but accumulates inside the cavity, waiting to be expelled through said draining interface in accordance with the operating principle of the device according to the present invention.

[0041] In an aspect, said float-shutter assembly is movable at least between: a closing position, wherein said quantity of gaseous component in said cavity is less than a predetermined opening threshold and wherein said float-shutter assembly closes said first opening; an opening position, wherein said quantity of gaseous component in said cavity is greater than or equal to said predetermined opening threshold and wherein said float-shutter assembly keeps said first opening open.

[0042] In an aspect, said opening threshold that determines the transition of the float-shutter assembly between said opening position and said closing position is equal to 0 cm3.

[0043] In an alternative aspect to the previous one, said opening threshold that determines the transition of the floatshutter assembly between said opening position and said closing position is greater than 0 cm3.

[0044] In an aspect, said device comprises a configuration element movably housed, at least partially, in said draining interface and defining at least one draining conduit configured to allow said fluid flow to exit said device. In particular, said at least one draining conduit is configured to allow said fluid flow to exit through said second opening of the draining interface.

[0045] In an aspect, the exit of said fluid flow into said external environment is permitted solely through said at least one draining conduit. In an aspect, said device is configurable in at least the following configurations:

[0046] - an automatic draining configuration wherein said configuration element keeps said first opening open and closes said by-pass channel;

[0047] - a manual draining configuration wherein said configuration element keeps at least said by-pass channel open.

[0048] In an aspect, in said automatic draining configuration, said configuration element obstructs said second end of said by-pass channel.

[0049] In an aspect, in said manual draining configuration, said configuration element keeps said second end of said by-pass channel open.

[0050] In an aspect, said device is configurable in a closing configuration, wherein said configuration element closes both said first opening and said by-pass channel.

[0051] In an aspect, in said closing configuration, said configuration element obstructs both said first opening and said second end of said by-pass channel.

[0052] In an aspect, in said automatic draining configuration, said device is configured to expel said gaseous component passing solely through said first opening when said float-shutter assembly is in said opening position.

[0053] In an aspect, in said manual draining configuration, said device is configured to expel said fluid flow passing through said by-pass channel and said gaseous component passing through said first opening when said float-shutter assembly is in said opening position.

[0054] In an aspect, in said closing configuration, said device is configured to maintain said fluid flow in said cavity and not allow any outflow of fluid through said at least one draining conduit.

[0055] In an aspect, said configuration element is substantially counter-shaped with respect to said draining interface.

[0056] In an aspect, said second end of the by-pass channel is formed at a position of said draining interface different from said first opening and said second opening. In particular, said second end of the by-pass channel is formed at a position of said draining interface interposed between said first opening and said second opening.

[0057] In an aspect, said device is a deaerator device.

[0058] In an aspect, said draining interface extends along a first axis in said main body.

[0059] In an aspect, said draining interface comprises a channel extending in said main body, i.e., internally to said main body, starting from said second opening.

[0060] In an aspect, said configuration element is movable along said first axis.

[0061] In an aspect, said configuration element is at least partially housed in said channel.

[0062] In an aspect, said configuration element is configured to rototranslate with respect to said first axis within said channel. In an aspect, said closing configuration, said automatic draining configuration, and said manual draining configuration represent three different axial positions taken by the configuration element along said first axis in said draining interface.

[0063] In an aspect, a rototranslation of the configuration element causes said device to pass between two of said closing configuration, said automatic draining configuration, and said manual draining configuration In an aspect, said draining conduit is formed internally within said configuration element.

[0064] In an aspect, said draining conduit extends substantially parallel to said first axis.

[0065] In an aspect, said configuration element is manually operable.

[0066] In an aspect, said configuration element comprises at least one inlet and at least one outlet.

[0067] In an aspect, said draining conduit extends between said at least one inlet and said at least one outlet.

[0068] In an aspect, said at least one inlet is, in use, closer to said first opening than said at least one outlet.

[0069] In an aspect, said draining conduit is configured to allow an outflow of at least said gaseous component of said fluid flow from said at least one inlet to said at least one outlet.

[0070] In an aspect, said at least one inlet and said at least one outlet are substantially aligned along said first axis.

[0071] In one aspect, said configuration element comprises two inlets and one outlet.

[0072] In an aspect, said configuration element comprises a first portion, a second portion, and a third portion arranged, in use, in series along said first axis.

[0073] In an aspect, said second portion is interposed between said first portion and said third portion.

[0074] In an aspect, said at least one inlet is formed in a transition zone between said second portion and said third portion.

[0075] In an aspect, said configuration element comprises a first seal at said first portion. In particular, said first seal is configured to prevent a fluid leakage between said configuration element and said draining interface. More specifically, regardless of the configuration assumed by the device, the first seal is configured to prevent any fluid leakage other than that through said at least one draining conduit of the configuration element.

[0076] In an aspect, said configuration element comprises a second seal at said second portion. Said second seal is configured to prevent a fluid communication between said at least one inlet and said second end of the bypass channel when said device is in said automatic draining configuration.

[0077] In an aspect, said configuration element comprises a third seal at said third portion. Said third seal is configured to prevent a fluid communication between said at least one inlet and said first opening when said device is in said closing configuration.

[0078] In an aspect, said first portion has a larger diameter than said second portion, and said second portion has a larger diameter than said third portion. In other words, said configuration element has a tapered shape with a diameter decreasing from said first portion to said third portion.

[0079] In an aspect, said configuration element comprises a handle element configured to allow movement, in particular a manual movement, of said configuration element. Specifically, a movement of said configuration element causes a change in the configuration of said device. In an aspect, said draining interface comprises an insert, housed within said channel. Specifically, said insert defines said first opening.

[0080] In one aspect, said channel has at least a first thread on a relative internal surface.

[0081] In one aspect, said insert comprises a second thread, formed on a relative external surface, configured to couple with said first thread.

[0082] In one aspect, said insert is configured to be inserted into said channel by screwing.

[0083] In an aspect, said insert does not occlude said by-pass channel. More specifically, once installed in the channel, the insert does not obstruct said second end of the by-pass channel.

[0084] In an aspect, said insert does not occlude said by-pass channel. More specifically, once installed in the channel, the insert does not obstruct said second end of the by-pass channel.

[0085] In an aspect, said configuration element comprises a third thread formed on a relative outer surface, configured to couple with said first thread.

[0086] In an aspect, said configuration element is configured to move between said closing configuration, said automatic draining configuration, and said manual draining configuration by screwing or unscrewing.

[0087] In an aspect, said draining interface has an outer portion, an intermediate portion, and an inner portion arranged in series along said first axis. n an aspect, said intermediate portion is interposed along said first axis between said outer portion and said inner portion.

[0088] In an aspect, said outer portion defines said second opening of the channel.

[0089] In an aspect, said outer portion has a larger diameter than said intermediate portion, and said intermediate portion has a larger diameter than said inner portion. In other words, said draining interface has a tapered shape with a decreasing diameter from said outer portion to said inner portion.

[0090] In an aspect, said outer portion is defined by said channel of said draining interface.

[0091] In an aspect, said intermediate portion and said inner portion are defined by said insert.

[0092] In an aspect, said first portion has substantially the same diameter as the outer portion.

[0093] In an aspect, said second portion has substantially the same diameter as the intermediate portion.

[0094] In an aspect, said third portion has substantially the same diameter as the inner portion.

[0095] In an aspect, in said closing configuration, the second portion is entirely housed within the intermediate portion and the third portion is entirely housed within the inner portion.

[0096] In an aspect, in said automatic draining configuration, the second portion and the third portion are partially housed in the intermediate portion so as to allow a fluid communication between said first opening and said at least one inlet and to prevent a fluid communication between said by-pass channel and said at least one inlet. In an aspect, in said manual draining configuration, the second portion is substantially housed in the outer portion so as to allow a fluid communication between said first opening and said at least one inlet and a fluid communication between said by-pass channel and said at least one inlet. In an aspect, the draining interface comprises a bezel disposed circumferentially around said second opening and comprising a plurality of indicators. In accordance with this aspect, each of said indicators is representative of one of the possible configurations of said device.

[0097] In an aspect, said configuration element comprises a window configured to show one of the indicators of the bezel. In accordance with this aspect, an alignment between said window and an indicator of said bezel is representative of a position of said configuration element within said draining interface such as to determine a configuration of said device corresponding to the aforementioned indicator.

[0098] In an aspect, said float-shutter assembly comprises a float and a shutter distinct from each other. In accordance with this aspect, said float is movable as a function of said quantity of gaseous component in said cavity, while said shutter is operatively active on the first opening. In particular, said float and said shutter are associated with each other so that the movement of the float determines the opening or closing of the first opening by means of the shutter.

[0099] In an aspect, said float is movable within said cavity along a second axis. In particular, the position of said float along said second axis is determined by said quantity of said gaseous component of said fluid flow present within the cavity.

[0100] In an aspect, said shutter is configured to obstruct or free said first opening depending on said position assumed by the float along the second axis. In particular, said shutter is configured to obstruct said first opening when said float is in said closing position and to free said first opening when said float is in said opening position.

[0101] In an aspect, said at least one opening position coincides with a position of the float along the second axis closer to the main opening than the position assumed by the float in the closing position.

[0102] In an aspect, said second axis is perpendicular to said first axis.

[0103] In an aspect, said device comprises a return element configured to push said float-shutter assembly towards said closing position. n one aspect, said return element comprises a spring or equivalent element.

[0104] In one aspect, said device comprises a bubble breaking element, housed at least partially within said main interface.

[0105] In an aspect, said bubble breaking element is configured to affect said component of the hydraulic system and to push the gaseous component present therein towards said cavity.

[0106] In a further aspect, the present invention relates to a hydraulic system for treating a fluid flow. By way of example, said hydraulic system may be a sanitary water system or a heating system.

[0107] According to this aspect, said hydraulic system comprises: at least one device for expelling a gaseous component from said fluid flow in accordance with one or more of the previous aspects; at least one further component, said at least one component being one or more components chosen among: a pipe, a heater, a radiating element, a device for conditioning said fluid flow, a pump. In an aspect, said at least one device is associated with said at least one component at said at least one main interface.

[0108] In another aspect, the present invention also relates to a method of assembling the device for expelling the gaseous component from a fluid flow according to one or more of the preceding aspects.

[0109] In an aspect, said assembly method comprises a step of arranging said main body.

[0110] In an aspect, said assembly method comprises a step of arranging said main body.

[0111] In an aspect, said assembly method comprises a step of arranging said float-shutter assembly.

[0112] In an aspect, said assembly method comprises a step of arranging said configuration element.

[0113] In an aspect, said assembly method comprises a step of housing said float-shutter assembly within said cavity.

[0114] In an aspect, said assembly method comprises a step of installing, in a movable manner, said configuration element in said draining interface.

[0115] In an aspect, said step of arranging said main body comprises installing, preferably by screwing, said insert in said channel.

[0116] In an aspect, said step of installing said configuration element comprises screwing said configuration element into said channel.

[0117] In an aspect, said step of arranging said float-shutter assembly comprises arranging a float and a shutter that are distinct and associated with each other.

[0118] In an aspect, said step of housing said float-shutter assembly comprises housing said float in a movable manner within said cavity along said second axis and associating said shutter to said float.

[0119] In an aspect, said method of assembling provides a step of installing, within said cavity, said return element operatively active on said float-shutter assembly to push it towards said closing position.

[0120] In an aspect, said assembly method includes a step of installing a bubble breaking element at said main interface.

[0121] In yet another aspect, the present invention relates to a process of using the device to expel the gaseous component from a fluid flow according to one or more of the preceding aspects.

[0122] In an aspect, said process of using comprises at least the steps of: associating said device to a component, in particular a pipeline, of a hydraulic system at said at least one main interface so as to allow an exchange of said fluid flow between said cavity and said component; selecting a configuration of said device.

[0123] In an aspect, said step of selecting a configuration involves selectively selecting a configuration of said device among at least the following configurations: automatic draining configuration for automatic expulsion of the gaseous component from said cavity; manual draining configuration for forced expulsion of said fluid flow from said cavity.

[0124] In an aspect, said selecting step also comprises selectively selecting said closing configuration to prevent an outflow of said fluid flow from said cavity.

[0125] In an aspect, said selecting step comprises a rototranslation of said configuration element within said channel. In an aspect, said selecting step further comprises screwing or unscrewing said configuration element within said draining interface.

[0126] Further features and advantages will become apparent from the detailed description of a preferred, but not exclusive, embodiment of a device for expelling a gaseous component from a fluid flow, a hydraulic system comprising said device for expelling a gaseous component from a fluid flow, a method of assembling said device for expelling a gaseous component from a fluid flow, and a process of using said device for expelling a gaseous component from a fluid flow, in accordance with the present invention.

[0127] SHORT DESCRIPTION OF THE FIGURES

[0128] Some embodiments and some aspects of the invention will be described below with reference to the attached drawings, which are provided for illustrative purposes only and are therefore not limiting, wherein:

[0129] - Figure 1 is a perspective view of a device for expelling a gaseous component from a fluid flow according to the present invention, in accordance with an exemplary embodiment;

[0130] - Figure 2 is a side plan view of the device shown in Figure 1 ;

[0131] - Figure 3 is a perspective view, with some elements in transparency, of the device shown in Figure 1 ;

[0132] - Figure 4 represents a front plan view of the device shown in Figure 1 according to a first configuration;

[0133] - Figures 5 shows a sectional view along plane V-V of the device shown in Figure 4;

[0134] - Figures 6 shows a front plan view of the device shown in Figure 1 according to a second configuration;

[0135] - Figures 7 is a sectional view along plane VII-VII of the device shown in Figure 6 in a first condition;

[0136] - Figure 8 is a sectional view along plane VII-VII of the device shown in Figure 6 in a second condition;

[0137] - Figure 9 shows a front plan view of the device shown in Figure 1 in a third configuration;

[0138] - Figure 10 shows a sectional view along plane X-X of the device shown in Figure 9;

[0139] - Figure 11 shows a perspective view of a component of the device of Figure 1 ;

[0140] - Figure 12 shows a different perspective view of the component shown in Figure 11;

[0141] - Figure 13 shows a sectional view of the component shown in Figures 11 -12;

[0142] - Figure 14 corresponds to the sectional views of the device shown in Figures 5, 7, and 10 with some components removed;

[0143] - Figure 15 is an exploded view of the device shown in Figure 1.

[0144] DETAILED DESCRIPTION

[0145] Please note that, in the present detailed description, corresponding parts illustrated in the various figures are indicated with the same reference numbers. The figures may illustrate the subject matter of the invention using representations that are not to scale; therefore, parts and components illustrated in the figures relating to the subject matter of the invention may relate exclusively to schematic representations.

[0146] With reference to the attached figures, reference 100 has been used to indicate a device for expelling a gaseous component from a fluid flow. Specifically, the aforementioned device 100 is configured to be installed in a hydraulic system for the purpose of allowing the expulsion of any gaseous component present in the fluid flow circulating between the various components of the system itself. Due to its function, the device 100 belongs to the category of so-called deaerating devices, typically referred to simply as deaerators. It should be noted that in the present document, the term "fluid flow” refers to a substance that may comprise both a liquid component and a gaseous component. By way of example, the liquid component of the fluid flow is represented by water, while the gaseous component is represented by air. In the context of the hydraulic system wherein device 100 is installed, it is preferable that the circulating fluid flow is composed almost entirely of the liquid component, as the accumulation of significant quantities of the gaseous component in some of the components of the hydraulic system could compromise its correct functioning and / or give rise to corrosion and / or represent a risk of breakage and / or decrease overall efficiency and / or cause the emergence of annoying noise. Therefore, as will be clear from the present description, the device 100 is configured to be installed at a component of the hydraulic system, preferably a pipeline of said system, to intercept the fluid flow and separate the liquid component of the fluid flow from the gaseous component, expelling the latter into the external environment.

[0147] Firstly, the device 100 comprises a main body 1, which essentially defines the outer casing of the device and determines its overall dimensions. As shown in the sectional views of the attached figures, the main body 1 defines a cavity 10 inside it. In other words, the main body 1 is a hollow body that defines the external structure of the device 100 and allows the various components of the device itself to be housed inside the cavity 10.

[0148] Preferably, as shown in the embodiment of the attached figures, the main body 1 consists of several parts assembled together. With reference to the exploded view of Figure 15, the main body 1 preferably comprises an upper shell 1A and a lower shell 1 B assembled together, for example by screwing. Also preferably, a gasket GO is interposed between the upper shell 1A and the lower shell 1 B to prevent fluid leakage at the portion of contact between the two shells.

[0149] Exemplarily, the lower shell 1 B may comprise an upper edge configured to be plastically deformed, for example by a riveting operation, once the lower shell 1 B is associated with the upper shell 1A, in order to lock the two shells together.

[0150] In the shown embodiment, the main body 1 has globally a substantially cylindrical shape. This shape is to be understood as purely illustrative and not limiting, as the main body 1 can take different shapes without this entailing substantial changes to the operating principle of the device 100.

[0151] Furthermore, the main body 1 comprises at least one main interface 11 configured to connect the device 100 to a component, in particular a pipeline, of the hydraulic system. Specifically, the main interface 11 is configured to establish a fluid communication between the cavity 10 and the component of the hydraulic system to which the device 100 is associated. In detail, the main interface 11 defines a main opening 11A designed to allow fluid exchange between the cavity 10 and the component of the hydraulic system to which the device 100 is associated. Optionally, the main body 1 may include a seal, for example an O-ring, at a seat of the main interface 11, to ensure fluid tightness when the main interface 11 is connected to the component (typically a pipeline) of the hydraulic system. In the embodiment shown in the accompanying figures, the main body 1 comprises a single main interface 11, which defines a single main opening 11 A configured to allow both the entry and exit of fluid flow into and from the cavity 10. In alternative embodiments, the main body 1 may comprise two or more main interfaces. For example, the main body may comprise two main interfaces, a first main interface for the entry of fluid flow from the hydraulic system component into the cavity and a second main interface for the exit of fluid flow from the cavity toward the component of the hydraulic system.

[0152] In addition, the main body 1 comprises a draining interface 12 configured to put the cavity 10 in fluid communication with an external environment, in particular an environment external to the hydraulic system. As shown in the sectional views, in particular in Figure 14, the draining interface 12 extends, internally within the main body 1, between a first opening 121, designed to allow an outflow of a gaseous component of the fluid flow from the cavity 10, and a second opening 122, open to the external environment.

[0153] Preferably, the draining interface 12 extends along a first axis X inside the main body 1. In particular, as shown in Figure 14, the draining interface 12 comprises a channel 13 that extends, inside the main body 1, starting from the second opening 122 parallel to the first axis X.

[0154] The main body 1 also comprises a by-pass channel 14 extending between a first end 14A, open onto the cavity 10, and a second end 14B, open onto the draining interface 12. Preferably, the second end 14B of the by-pass channel is formed in a position of the draining interface 12 different from those wherein the first opening 121 and the second opening 122 are formed. In particular, the second end 14B of the by-pass channel is formed at a position of the channel 13 interposed between the first opening 121 and the second opening 122.

[0155] The device 100 also comprises a float-shutter assembly 2, 3 movably housed within the cavity 10. The position of the float-shutter assembly 2, 3 is determined by a quantity of gaseous component within the fluid flow in the cavity 10. In the present description, the expressions "quantity of gaseous component within the fluid flow in the cavity 10,” or simply "quantity of gaseous component in the cavity 10,” or even more simply "amount of gaseous component,” refers to the accumulation of gaseous component, such as air, carried by the fluid flow circulating inside cavity 10. Once it has entered cavity 10 through the main opening 11 A, such a gaseous component does not exit through the same main opening, but accumulates inside the cavity, waiting to be expelled through the draining interface 12 in accordance with the operating principle of device 100, which will be described in detail below.

[0156] As clearly shown by the comparison between Figures 7 and 8, the float-shutter assembly 2, 3 is movable at least between: a closing position P0 wherein the float-shutter assembly closes the first opening 121; an opening position P1 wherein the float-shutter assembly keeps the first opening 121 open.

[0157] Specifically, the float-shutter assembly 2, 3 takes the closing position P0 in situations wherein the amount of gaseous component in the cavity 10 is less than a specific opening threshold. Conversely, the float -shutter assembly 2,3 takes the opening position P1 in situations wherein the amount of gaseous component in the cavity 10 is greater than or equal to the aforementioned specific opening threshold. Depending on the embodiment, the opening threshold that determines the transition of the float-shutter assembly 2, 3 between the open position and the closed position may be equal to 0 cm3or greater than 0 cm3, in the event that the device 100 is designed to allow the accumulation of minimal quantities of gaseous component inside the cavity 10.

[0158] Preferably, as illustrated in the accompanying figures, the float-shutter assembly 2, 3 comprises a float 2, which moves according to the quantity of gaseous component in the cavity 10, and a shutter 3, which operates on the first opening 121. In particular, the float 2 and the shutter 3 are distinct from each other but associated so that the movement of the float determines the opening or closing of the first opening 121 by means of the shutter. In the embodiment illustrated in the accompanying figures, the float 2 and the shutter 3 are associated by inserting an end of the shutter into a slot formed in the body of the float. Specifically, the end of the shutter is shaped so as to remain trapped in the aforementioned slot and, consequently, prevent the detachment between the float and the shutter.

[0159] On the one hand, float 2 is movable within cavity 10 along a second axis Z. With reference to the embodiment shown in the accompanying figures, the second axis corresponds to the vertical axis of device 100. Preferably, the second axis Z is perpendicular to the first axis X.

[0160] As anticipated, the position assumed by float 2 along the second axis Z is determined by the amount of gaseous component present inside cavity 10. With reference to Figures 7 and 8, when the amount of gaseous component in cavity 10 is less than the opening threshold, float 2 assumes a higher position (Figure 7) than the position assumed when the amount of gaseous component is greater than the aforementioned opening threshold (Figure 8). In other words, the gaseous component in cavity 10 pushes float 2 away from the first opening 121, in this instance towards the main opening 11A, i.e. downwards. The greater the quantity of gaseous component in cavity 10, the greater the force exerted on float 2. Consequently, with reference to the illustrated embodiment, the greater the quantity of gaseous component in cavity 10, the greater the distance between float 2 and the first opening 121. Alternatively, the opening position P1 coincides with a position of the float 2 along the second axis Z closer to the main opening 11 A than the position assumed by the float in the closing position P0.

[0161] On the other hand, the shutter 3 is configured to obstruct or release the first opening 121 depending on the position assumed by the float 2 along the second axis Z. In other words, the association between the float 2 and the shutter 3 determines a different degree of opening of the first opening 121 based on the position assumed by the float 2. Specifically, the shutter 3 is configured to close the first opening 121 when the amount of gaseous component in the cavity 10 is less than the opening threshold and, therefore, the float 2 does not undergo a substantial push away from the first opening 121. Conversely, the shutter 3 is configured to free the first opening 121 when the amount of gaseous component in the cavity 10 is greater than or equal to the opening threshold and, therefore, the float 2 undergoes a push away from the first opening 121. Essentially, the movement of float 2 along the second axis Z drags the shutter 3, which opens the first opening 121 and allows the outflow of at least part of the gaseous component through the draining interface 12. In addition, the device 100 comprises a configuration element 4 movably housed, at least partially, in the draining interface 12. In particular, the configuration element 4 is at least partially housed inside the channel 13.

[0162] The configuration element 4 is adapted to define at least one draining conduit 40 configured to allow for an outflow of the fluid flow from the cavity 10. Specifically, the at least one draining conduit 40 is configured to allow for an outflow of the fluid flow through the second opening 122 of the draining interface 12. In the illustrated embodiment, the configuration element 4 has a longitudinal cavity that defines the single draining conduit 40. This embodiment is intended to be illustrative and in absolutely non-limiting manner, as the device 100 may provide a configuration element comprising multiple draining conduits and / or wherein the at least one draining conduit is formed on the outer surface of the configuration element itself, so that each draining conduit is at least partly defined by the inner wall of the draining interface 12.

[0163] As shown in Figures 11-13, the configuration element 4 comprises at least one inlet 41, 42 and at least one outlet 43 of the draining conduit 40. In other words, the draining conduit 40 extends between the at least one inlet 41, 42 and the at least one outlet 43. In the illustrated embodiment, the configuration element 4 comprises two inlets 41, 42 and one outlet 43 substantially aligned along the first axis X. In use, the inlets 41, 42 are closer to the first opening 121 than the outlet 43. Specifically, the draining conduit 40 is configured to allow for an outflow of at least the gaseous component from the inlets 41, 42 to the outlet 43.

[0164] As shown in Figures 6-10, the device 100 can be configured in at least the following configurations: automatic draining configuration C1 (Figures 6-8), wherein configuration element 4 keeps the first opening 121 open and closes the by-pass channel 14; manual draining configuration C2 (Figures 9-10) wherein configuration element 4 keeps at least the bypass channel 14 open.

[0165] As shown in the cross-sectional views of Figures 7 and 8, in the automatic draining configuration C1, the configuration element 4 obstructs, i.e., plugs, the second end 14B so that the fluid flow passing through the by-pass channel 14 cannot reach the draining interface 12 and exit the device 100 through the draining conduit 40. Therefore, in the automatic draining configuration C1, the device 10 is configured to expel only the gaseous component passing through the first opening 121 when the float-shutter assembly 2, 3 is in the opening position P1 . In fact, although in the automatic draining configuration C1 the first opening 121 is not blocked by the configuration element 4, when the amount of gaseous component in the cavity 10 is less than the opening threshold, the float-shutter assembly 2, 3 is in the closing position P0 and, consequently, the first opening 121 is plugged, specifically by the shutter 3. Therefore, in the automatic draining configuration C1, when the float-shutter assembly 2, 3 is in the closing position P0, there is no fluid outflow. Conversely, when the amount of gaseous component in cavity 10 is greater than or equal to the opening threshold, the floatshutter assembly 2, 3 assumes the open position P1, freeing the first opening 121 and allowing the expulsion into the external environment of at least part of the gaseous component present in the cavity through the draining conduit 40. It should be noted that, in the automatic draining configuration C1, the device 100 is configured to expel only the gaseous component present in the fluid flow circulating inside the cavity 10. In other words, in the automatic draining configuration C1, the liquid component of the fluid flow circulating inside the cavity 10 is not expelled through the draining interface 12.

[0166] As shown in Figure 10, in manual draining configuration C2, the configuration element 4 keeps the second end 14B of by-pass channel 14 open. Therefore, in manual draining configuration C2, the device 100 is configured to expel at least the fluid flow passing from cavity 10 to draining interface 12 through by-pass channel 14. Note that the fluid flow passing through the by-pass channel 14 may consist of a liquid component and a gaseous component in varying proportions. For example, the fluid flow passing through the by-pass channel 14 may consist almost entirely of a gaseous component, or almost entirely of a liquid component, or a mixture of a liquid component and a gaseous component. Therefore, in the manual draining configuration C2, the device 100 is configured to expel, through the draining conduit 40, both the liquid component and the gaseous component, depending on the composition of the fluid flow passing through the by-pass channel 14. Preferably, as shown in Figure 10, in the manual draining configuration C2, the configuration element 4 also maintains the first opening 121 open, through which at least part of the gaseous component accumulated in the cavity 10 can reach the draining interface 12 when the float-shutter assembly 2, 3 is in the opening position P1. Essentially, as regards the gaseous component passing through the first opening 121, the operation of the device 100 in the manual draining configuration C2 is substantially similar to that in the automatic draining configuration C1.

[0167] Preferably, as shown in Figures 4 and 5, the device 100 can also be configured in a closing configuration CO, wherein the configuration element 4 closes both the first opening 121 and the by-pass channel 14. Specifically, in the closing configuration CO, the configuration element 4 obstructs both the first opening 121 and the second end 14B of the by-pass channel 14, preventing the fluid communication between the cavity 10 and the draining interface 12. Essentially, in the closing configuration CO, the device 100 is configured to maintain the fluid flow in the cavity 10 and not allow any outflow of fluid through the draining conduit 40.

[0168] Preferably, in accordance with what is shown in the embodiment illustrated in the attached figures, the configuration element 4 is movable along the first axis X within the channel 13. In particular, the closing configuration CO, the automatic draining configuration C1, and the manual draining configuration C2 represent three different axial positions assumed by the configuration element 4 along the first axis X, illustrated by way of example in the views of Figures 5, 7-8, and 10. More preferably, the configuration element 4 is configured to rototranslate with respect to the first axis X within the channel 13. Specifically, a rototranslation of the configuration element 4 causes the device 100 to pass between two of the possible configurations, namely the closing configuration CO, the automatic draining configuration C1, and the manual draining configuration C2.

[0169] In the embodiment shown in the accompanying figures, the draining interface 12 has an outer portion 12A, an intermediate portion 12B, and an inner portion 12C arranged in series along the first axis X. Specifically, the intermediate portion 12B is interposed, along the first axis X, between the outer portion 12A and the inner portion 12C. In accordance with what is shown, for example, in Figure 14, the outer portion 12A defines the second opening 122 of the draining interface 12. In particular, the outer portion 12A has a larger diameter than the intermediate portion 12B, and the intermediate portion 12B has a larger diameter than the inner portion 12C. In other words, the draining interface 12 has a tapered shape with a diameter decreasing from the outer portion 12A to the inner portion 12C.

[0170] Preferably, as shown in Figures 11-13, the configuration element 4 comprises a first portion 4A, a second portion 4B, and a third portion 4C arranged, in use, in series along the first axis X. In detail, the second portion 4B is interposed between the first portion 4A and the third portion 4C. In the embodiment, the inlets 41, 42 are formed in a transition zone between the second portion 4B and the third portion 4C. Preferably, the inlets 41, 42 are arranged, in use, symmetrically with respect to the first axis X. As clearly shown in Figure 13, the first portion 4A has a larger diameter than the second portion 4B, and the second portion 4B has a larger diameter than the third portion 4C. In other words, the configuration element 4 has a tapered shape with a diameter decreasing from the first portion 4A to the third portion 4C.

[0171] Essentially, in the embodiment shown, the configuration element 4 is substantially counter-shaped with respect to the draining interface 12. Specifically, there is the following correspondence between the portions of the configuration element 4 and the draining interface: the first portion 4A and the outer portion 12A have substantially the same diameter; the second portion 4B and the intermediate portion 12B have substantially the same diameter; the third portion 4C and the inner portion 12C have substantially the same diameter.

[0172] Preferably, the draining interface 12 comprises an insert 15, housed inside the channel 13. As shown in the sectional views of the attached figures, the insert 15 is housed inside the channel 13 to define the first opening 121 of the draining interface 12. In addition, the insert 15 is configured to shape the draining interface

[0173] 12 so as to define, together with the configuration element 4, the different configurations that can be assumed by the device 100. Specifically, insert 15 is configured to define the intermediate portion 12B and the inner portion 12C, while the outer portion 12A is defined by channel 13.

[0174] In the embodiment shown in the accompanying figures, channel 13 has at least a first thread F1 on a relative inner surface. Preferably, channel 13 has the first thread F1 substantially along its entire length along the first axis X. Also preferably, the insert 15 includes a second thread F2, formed on a relative external surface, configured to couple with the first thread F1. Therefore, the insert 15 is configured to be inserted into channel

[0175] 13 by screwing. In particular, the insert 15 is configured to be inserted into the second opening 122 and to be screwed in along the entire length of the first thread F1 until it reaches a position facing the cavity 10 and thus defines the first opening 121. Note that insert 15 does not occlude the by-pass channel 14. More specifically, once housed in channel 13, the insert 15 does not obstruct, even partially, the second end 14B of the by-pass channel 14, which is therefore formed at the outer portion 12A. Specifically, the insert 15 is hollow internally to define the first opening 121 and, advantageously, at least a portion of such internal cavity is shaped in such a way as to be able to couple with a special tool designed to allow the screwing of the insert itself into the channel.

[0176] Preferably, in a manner substantially analogous to the insert 15, the configuration element 4 also includes a third thread F3, formed on a relative external surface, configured to couple with the first thread F1. In particular, the configuration element 4 is configured to move between the closing configuration CO, the automatic draining configuration C1, and the manual draining configuration C2 by screwing or unscrewing inside channel 13. More preferably, at least part of the draining conduit 40, in particular a portion at the outlet 43, is shaped so as to be able to couple with a special tool for screwing or unscrewing the configuration element 4 inside the channel 13.

[0177] Still preferably, the configuration element 4 can be operated manually. In the embodiment shown, the configuration element 4 comprises a handle element 4D configured to allow a movement, in particular a manual movement, of the configuration element itself. Specifically, a movement of configuration element 4 causes a change in the configuration of device 100. As shown in Figures 4, 6, and 9, the draining interface 12 comprises a bezel 12D arranged circumferentially around the second opening 122 and comprising a plurality of indicators. Each of these indicators is representative of one of the configurations that the device 100 can assume. Specifically, the "OFF” indicator corresponds to the closing configuration CO, the ‘AUT indicator corresponds to the automatic draining configuration C1, and the "MAN” indicator corresponds to the manual draining configuration C2. In the embodiment shown, the configuration element 4 includes a window 4E configured to display one of the indicators of the bezel 12D. Specifically, the alignment between window 4E and an indicator of bezel 12D is representative of a position of the configuration element 4 within the draining interface 12 such as to determine the configuration of device 100 corresponding to the aforementioned indicator.

[0178] The position assumed by the configuration element 4 within the draining interface 12 in the various configurations that can be assumed by the device 100 is now illustrated in detail.

[0179] Firstly, as clearly shown in Figures 11-13, it should be noted that configuration element 4 comprises a plurality of gaskets arranged between the various portions along its longitudinal development along the first X-axis.

[0180] Preferably, the configuration element 4 comprises a first gasket G1 at the first portion 4A, a second gasket G2 at the second portion 4B, and a third gasket G3 at the third portion 4C.

[0181] First, note that, as shown in the sectional views of Figures 5, 7-8, and 10, the first gasket G1 is configured to prevent a fluid leak between the first portion 4A of the configuration element 4 and the outer portion 12A of the draining interface 12, regardless of the configuration assumed by the device 100. Essentially, the first seal G1 is configured to prevent any fluid leakage other than that through the draining conduit 40 of the configuration element 4.

[0182] As shown in Figure 5, in the closing configuration CO, the second portion 4B is entirely housed in the intermediate portion 12B and the third portion 4C is entirely housed in the inner portion 12C. In this configuration, the third portion 4C plugs the first opening 121 and the third seal G3 ensures the seal between the third portion 4C and the inner portion 12C, preventing any exchange of fluid, in particular of the gaseous component, between the first opening 121 and the inlets 41, 42 of the draining conduit 40. At the same time, the second portion 4B plugs the second end 14B of the by-pass channel 14 and the second seal G2 ensures the seal between the second portion 4B and the intermediate portion 12B, preventing any exchange of fluid between the second end 14B and the inlets 41, 42 of the draining conduit 40. Therefore, in the closing configuration CO, the position of configuration element 4 does not allow the outflow of fluid from device 100 through the draining interface 12, in particular through the draining conduit 40.

[0183] As shown in Figures 7 and 8, in the automatic draining configuration C1, the second portion 4B and the third portion 4C are partially housed in the intermediate portion 12B so as to allow a fluid communication between the first opening 121 and the inlets 41, 42 and, at the same time, prevent a fluid communication between the by-pass channel 14 and the inlets 41, 42. In particular, in this configuration, the third portion 4C frees the first opening 121 and the third gasket G3 does not contact the inner portion 12C. In this way, the fluid communication between the first opening 121 and the inlets 41, 42 is allowed. In particular, when the amount of gaseous component is greater than the opening threshold, the float-shutter assembly 2, 3 frees the first opening 121 so that at least part of the gaseous component can reach the inlets 41, 42 and be expelled into the external environment through the draining conduit 40. At the same time, although the first portion 4A at least partially frees the second end 14B of the by-pass channel 14, the second seal G2 ensures the seal between the second portion 4B and the intermediate portion 12B, preventing any exchange of fluid between the second end 14B and the inlets 41, 42 of the draining conduit 40. Therefore, in the automatic draining configuration C1, the position of the configuration element 4 allows the outflow of only the gaseous component present in the cavity 10 through the first opening 121 and, subsequently, through the draining conduit 40. Note that the outflow of the gaseous component is also controlled by the position of the floatshutter assembly 2, 3, since the passage of the gaseous component from the cavity 10 to the draining interface 12 is only allowed when the float-shutter assembly is in the opening position P1 .

[0184] As shown in Figure 10, in the manual draining configuration C2, the third portion 4C is extracted from the inner portion 12C and the second portion 4B is substantially housed in the outer portion 12A so as to allow a fluid communication between the first opening 121 and the inlets 41, 42 and a fluid communication between the by-pass channel 14 and the inlets 41, 42. Depending on the position of the configuration element 4, the fluid communication is allowed both between the first opening 121 and the inlets 41, 42 and between the second end 14B and the inlets 41, 42. In particular, when the quantity of gaseous component is greater than the opening threshold, the float-shutter assembly 2, 3 frees the first opening 121 so that at least part of the gaseous component can reach the inlets 41, 42 and be expelled into the external environment through the draining conduit 40. At the same time, the second end 14B is completely open and the second gasket G2 does not contact the intermediate portion 12B, allowing the fluid communication between the by-pass channel 14 and the draining conduit 40. Consequently, in the manual draining configuration C2, the position of the configuration element 4 allows the outflow of the gaseous component only when the float-shutter assembly 2, 3 is in the opening position P1 and, at the same time, allows the outflow of the fluid flow passing through the by-pass conduit 14 from the cavity 10 to the draining interface 12. Essentially, in the manual draining configuration C2, the device 100 adds the possibility of draining the fluid flow through the by-pass channel 14 to the functionality of the automatic draining configuration C1 .

[0185] With reference to the accompanying figures, the device 100 preferably also comprises a return element 5. Such a return element 5 is configured to push the float-shutter assembly 2, 3 towards the closing position P0. In the illustrated embodiment, the return element 5 comprises a spring operatively active between the shutter 3 and the insert 15. In detail, the return element 5 is configured to exert a force on the shutter 3 that is opposite to that of the gaseous component accumulated in the cavity 10. In other words, the return element 5 is configured to return the shutter 3, and therefore also the float 2, to a closing position of the first opening 121.

[0186] Still preferably, the device 100 also comprises a bubble breaking element 6. As shown, for example, in Figure 3, the bubble breaking element 6 is housed at least partially within the main interface 11. In particular, the bubble breaking element 6 is at least partially exposed outside the device 100, i.e., outside the main opening 11 A, to affect the component of the hydraulic system to which the device is associated. Functionally, the bubble breaking element 6 is configured to intercept the fluid flow circulating inside the component of the hydraulic system and to break the air bubbles present therein, so as to push the gaseous component towards the cavity 10, where it can be expelled depending on the configuration assumed by the device 100.

[0187] As mentioned above, the device 100 is configured to be installed within a hydraulic system for treating a fluid flow, which will now be described. By way of example, the hydraulic system may be a water-sanitary system or a heating system.

[0188] In its main elements, the hydraulic system comprises: at least one device 100 in accordance with the above description; at least one additional component chosen among: a pipeline, a heater, a radiating element, a device for conditioning the fluid flow, a pump.

[0189] Preferably, the hydraulic system includes a plurality of additional components and, depending on the type of system, may include all the components listed above and other components not mentioned but known in the technical field. With reference to the hydraulic system, device 100 is associated with one of the components of the system itself at the main interface 11 .

[0190] A method of assembling device 100 to expel the gaseous component from a fluid flow, illustrated by way of example in the exploded view of Figure 15, is now described.

[0191] First, the method of assembling includes a step of arranging the main body 1, the float-shutter assembly 2, 3, and the configuration element 4 in accordance with the above description.

[0192] Subsequently, the method of assembling comprises a step of housing the float-shutter assembly 2, 3 inside the cavity 10. Preferably, the step of arranging the float-shutter assembly 2, 3 involves arranging the float 2 and the shutter 3 separately and associating them with each other. In particular, the step of housing the floatshutter assembly 2, 3 involves housing the float 2 in a movable manner inside the cavity 10 along the second axis Z and associating the shutter 3 with the float 2.

[0193] Preferably, the step of arranging the main body 1 involves installing, preferably by screwing, the insert 15 in the channel 13.

[0194] In addition, the method of assembling includes a step of installing, in a movable manner, the configuration element 4 inside the draining interface 12. Preferably, the step of installing the configuration element involves screwing the configuration element 4 into the channel 13. Still preferably, the method of assembling includes a step of installing, inside the cavity 10, the return element 5 operatively active on the float-shutter assembly 2, 3 to push it towards the closing position P0.

[0195] Again preferably, the method of assembling involves installing the bubble breaking element 6 at the main interface 11.

[0196] Finally, a process of using the device 100 to expel at least the gaseous component from a fluid flow is illustrated.

[0197] In its salient aspects, the process of using comprises at least the following steps: associating the device 100 to a component, in particular a pipeline, of a hydraulic system at the main interface 11 so as to allow a fluid exchange between the cavity 10 and the aforementioned component; selecting a configuration of the device 100.

[0198] In particular, the step of selecting a configuration involves selectively selecting a configuration of the device 100 from at least the following configurations: automatic draining configuration C1 for an automatic expulsion of at least part of the gaseous component in the cavity 10; manual draining configuration C2 for a forced expulsion of the fluid flow from the cavity 10.

[0199] Preferably, the step of selecting also involves selectively selecting the closing configuration CO to prevent an outflow of fluid from cavity 10.

[0200] In particular, the step of selecting a configuration of the device 100 involves a rototranslation of the configuration element 4 within the draining interface 12. More specifically, the step of selecting a configuration of the device 100 involves screwing or unscrewing the configuration element 4 within the channel 13.

[0201] In light of the above, it is clear that the process of using allows for different configurations depending on the requirements of the hydraulic system wherein device 100 is installed. In particular, when it is necessary to expel the gaseous component of a fluid flow through device 100, it is possible to select either the automatic draining configuration C1 or the manual draining configuration C2. Specifically, when it is necessary to expel only the gaseous component that can accumulate in cavity 10, for example under normal operating conditions of the hydraulic system, it is preferable to select the automatic draining configuration C1. On the contrary, when it is necessary to forcibly expel the fluid circulating inside the hydraulic system, such as during installation, filling, or maintenance operations, it is preferable to select the manual draining configuration C2.

[0202] The invention as conceived is subject to numerous modifications and variations, all falling within the scope of the inventive concept, and the components mentioned can be replaced by other technically equivalent elements.

[0203] ADVANTAGES OF THE FINDING

[0204] The invention has significant technical effects and achieves important advantages. First of all, as is clear from the above description, the invention overcomes the drawbacks of the known technique.

[0205] Firstly, the device 100 allows the selection of multiple configurations capable of effectively expelling at least the gaseous component from the fluid flow circulating inside cavity 10 and, therefore, also in the hydraulic system wherein the device is installed. In particular, the device 100 allows for an effective expulsion of the gaseous component from the fluid flow both when the hydraulic system is in full operation and during the installation and maintenance phases of the system itself.

[0206] In this sense, the device 100 is particularly versatile in expelling the gaseous component from the fluid flow circulating inside the hydraulic system wherein it is installed. In fact, device 100 can be configured at least in the automatic draining configuration C1 and in the manual draining configuration C2. Each of the above configurations allows for optimal expulsion of the gaseous component from the fluid flow in a particular operating condition of the hydraulic system wherein the device is installed. Specifically, the automatic draining configuration C1 is particularly suitable for being used under normal operating conditions of the hydraulic system, to expel only the gaseous component that may accumulate in cavity 10. In alternative conditions, such as installation or maintenance operations, it may happen that considerable quantities of gaseous component must be expelled. In such situations, it is preferable to adopt the manual draining configuration C2 in order to forcibly expel the fluid flow through the draining interface 12 and eliminate the gaseous component more rapidly than it would be possible using only the automatic draining configuration C1.

[0207] In light of the above, the device 100 allows the integration of the functions of several known devices into a single element. In fact, in known solutions, in order to allow the efficient elimination of the gaseous component in almost all situations, the hydraulic systems are equipped with several devices for the elimination of the gaseous component. In particular, known hydraulic systems are typically equipped with both a manual device for eliminating gases during installation and maintenance, and an automatic device for maintaining optimal conditions during normal system operation. This redundancy of devices multiplies the risk of malfunctions, as well as increasing the cost of equipping the hydraulic system with the ability to efficiently expel the gaseous component in any operating situation.

[0208] In addition, the device 100 allows for a particularly quick and practical change of configuration. In fact, to set the configuration of the device 100 that is most suitable for the operating conditions of the hydraulic system wherein it is installed, it is sufficient to manually operate the configuration element 4. In this sense, the configuration maneuvers of the device 100 are particularly simplified and quick.

[0209] Inoltre, II dispositive 100 e caratterizzato da una struttura particolarmente semplice e razionale e, quindi, da un costo di produzione competitivo.

[0210] The advantages of device 100 are reflected in the hydraulic system wherein it is installed. In fact, the presence of device 100 provides a single point wherein the expulsion of the gaseous component from the fluid flow circulating in the hydraulic system can be managed. Consequently, the device 100 allows the circulating fluid flow to be maintained in exclusively liquid form, i.e., without any gaseous component. In this way, the device 100 ensures the correct functioning of the hydraulic system and minimizes the risks associated with the presence of the gaseous component, such as corrosion, breakage, decreased overall efficiency, and the generation of annoying noises.

[0211] In addition, the structure of the device 100 provides a particularly easy-to-perform method of assembling.

Claims

CLAIMS1. Device (100) for expelling a gaseous component from a fluid flow comprising:- a main body (1) defining within itself a cavity (10), said main body (1) comprising:- at least one main interface (11) configured to connect said device (100) to a component, in particular a pipeline, of a hydraulic system and to put in fluid communication said cavity (10) with said component, said at least one main interface (11) defining a main opening (11 A) suitable for allowing an exchange of said fluid flow between said cavity (10) and said component;- a draining interface (12) configured to put in fluid communication said cavity (10) with an outer environment, said draining interface (12) extending in said main body (1) between a first opening (121), suitable for allowing an outflow of a gaseous component of said fluid flow from said cavity (10), and a second opening (122);- a by-pass channel (14) extending between a first end (14A), opened on said cavity (10), and a second end (14B), opened on said draining interface (12);- a float-shutter assembly (2, 3) movably housed within said cavity (10) and having a position determined by an amount of said gaseous component in said cavity (10), said float-shutter assembly (2, 3) being movable at least between:- a closing position (P0), wherein said amount of gaseous component in said cavity (10) is lower than a determined opening threshold and wherein said float-shutter assembly (2, 3) closes said first opening (121);- an opening position (P1 ), wherein said amount of gaseous component in said cavity (10) is greater than or equal to said determined opening threshold and wherein said float-shutter assembly (2, 3) keeps said first opening (121) open;- a configuration element (4) movably housed, at least partially, in said draining interface (12) and defining at least a draining conduit (40) configured to allow an outflow of said fluid flow from said device (100); said device (100) being configurable in at least the following configurations:- automatic draining configuration (C1) wherein said configuration element (4) keeps said first opening (121) open and closes said by-pass channel (14);- manual draining configuration (C2) wherein said configuration element (4) keeps at least said bypass channel (14) open.

2. Device (100) according to claim 1, wherein said device (100) is configurable, further, in a closing configuration (CO), wherein said configuration element (4) closes both said first opening (121) and said bypass channel (14); and / or wherein said configuration element (4) is substantially counter-shaped with respect to said draining interface (12); and / or wherein said second end (14B) is obtained in a position of said draining interface (12) different from said first opening (121) and from said second opening (122); and / or wherein said device (100) is a deaerator device.

3. Device (100) according to claim 2, wherein, in said automatic draining configuration (C1), said device (100) is configured to expel said gaseous component only passing through said first opening (121) when said floatshutter assembly (2, 3) is in said opening position (P1); and / or wherein, in said manual draining configuration (C2), said device (100) is configured to expel said fluid flow passing through said by-pass channel (14) and said gaseous component passing through said first opening (121) when said float-shutter assembly (2, 3) is in said opening position (P1); and / or wherein, in said closing configuration (CO), said device (100) is configured to keep said fluid flow in said cavity (10) and not to allow any outflow of fluid through said at least one draining conduit (40).

4. Device (100) according to claim 2 or 3, wherein said draining interface (12) develops along a first axis (X) in said main body (1); and / or wherein said draining interface (12) comprises a channel (13) which extends in said main body (1) starting from said second opening (122); and / or wherein said configuration element (4) is movable along said first axis (X); and / or wherein said configuration element (4) is configured to rototranslate with respect to said first axis (X) within said channel (13); and / or wherein said closing configuration (CO), said automatic draining configuration (C1) and said manual draining configuration (C2) represent three different axial positions taken on by the configuration element (4) along said first axis (X); and / or wherein said at least one draining conduit (40) is obtained internally to said configuration element (4); and / or wherein said configuration element (100) is manually operable.

5. Device (100) according to any one of the preceding claims, wherein said configuration element (4) comprises at least one inlet (41, 42) and at least one outlet (43), said at least draining conduit (40) extending between said at least one inlet (41, 42) and said at least one outlet (43); and / or wherein said at least one draining conduit (40) is configured to allow an outflow of at least said gaseous component from said at least one inlet (41, 42) to said at least one outlet (43); and / or wherein said configuration element (4) comprises two inlets (41, 42) and an outlet (43).

6. Device (100) according to any one of the preceding claims, wherein said draining interface (12) comprises an insert (15), housed within said channel (13), said insert (15) defining said first opening (121); and / or wherein said channel (13) presents at least one first threading (F1) on a relative inner surface; and / or wherein said insert (15) comprises a second threading (F2), obtained on a relative outer surface, configured to couple with said first threading (F1); and / or wherein said configuration element (4) comprises a third threading (F3), obtained on a relative outer surface, configured to couple with said first threading (F1).

7. Device (100) according to the preceding claim, wherein said draining interface (12) presents an outer portion (12A), an intermediate portion (12B) and an inner portion (12C) arranged in series along said first axis (X); and / or wherein said intermediate portion (12B) is interposed along said first axis (X) between said outer portion (12A) and said inner portion (12C); and / or wherein said outer portion (12A) defines said second opening (122); and / or wherein said outer portion (12A) presents a diameter greater with respect to said intermediate portion (12B) and said intermediate portion (12B) presents a diameter greater with respect to said inner portion (12C); and / or wherein said outer portion (12A) is defined by said channel (13); and / or wherein said intermediate portion (12B) and said inner portion (12C) are defined by said insert (15).

8. Device (100) according to any one of the preceding claims, wherein said configuration element (4) comprises a first portion (4A), a second portion (4B) and a third portion (4C) arranged, in use, in series along said first axis (X); and / or wherein said second portion (4B) is interposed between said first portion (4A) and said third portion (4C); and / or wherein said configuration element (4) comprises a first gasket (G1) in correspondence of said first portion (4A) and / or a second gasket (G2) in correspondence of said second portion (4B) and / or a third gasket (G3) in correspondence of said third portion (4C); and / or wherein said first portion (4A) presents a diameter greater with respect to said second portion (4B) and said second portion (4B) presents a diameter greater with respect to said third portion (4C).

9. Device (100) according to claim 7 and claim 8, wherein said first portion (4A) has substantially the same diameter of the outer portion (12A); and / or wherein said second portion (4B) has substantially the same diameter of the intermediate portion (12B); and / or wherein said third portion (40) has substantially the same diameter of the inner portion (12B); and / or wherein, in said closing configuration (CO), the second portion (4B) is entirely housed in the intermediate portion (12B) and the third portion (40) is entirely housed in the inner portion (12C); and / or wherein, in said automatic draining configuration (01), the second portion (4B) and the third portion (40) are partially housed in the intermediate portion (12B) so as to allow a fluid communication between said first opening (121) and said at least one inlet (41, 42) and to prevent a fluid communication between said by-pass channel (14) and said at least one inlet (41, 42); and / or wherein, in said manual draining configuration (02), the second portion (4B) is housed substantially in the outer portion (12A) so as to allow a fluid communication between said first opening (121) and said at least one inlet (41, 42) and a fluid communication between said by-pass channel (14) and said at least un inlet (41, 42).

10. Device (100) according to any one of the preceding claims, wherein float-shutter assembly (2, 3) comprises a float (2) and a shutter (3) distinct and associated to each other; and / or wherein said float (2) results movable within said cavity (10) along a second axis (Z), a position of said float (2) along said second axis (Z) being determined by said amount of said gaseous component present within the cavity (10); and / or wherein said shutter (3) is configured to obstruct or clear said first opening (121) as a function of said position taken on by the float (2) along the second axis (Z) and / or wherein said second axis (Z) is perpendicular to said first axis (X).

11. Device (100) according to any one of the preceding claims comprising a return element (5) configured to push said float-shutter assembly (2, 3) toward said closing position (P0); and / or wherein said return element (5) comprises a spring; and / or wherein said device (100) comprises a bubble breaking element (6), housed at least partially within said main interface (11); and / or wherein said bubble breaking element (6) is configured to affect said component of the hydraulic plant.

12. Method of assembling a device (100) according to any one of the preceding claims, said method of assembling comprising at least the following steps:- arranging said main body (1), said float-shutter assembly (2, 3) and said configuration element (4);- housing said float-shutter assembly (2, 3) within said cavity (10);- installing said configuration element (4) in said draining interface (12).

13. Method of assembling according to the preceding claim, wherein said step of arranging said main body (1) provides to install, preferably by screwing, said insert (15) in said channel (13); and / or wherein said step of installing said configuration element (4) provides to screw said configuration element (4) in said channel (13); and / or wherein said step of arranging said float-shutter assembly (2, 3) provides to arrange a float (2) and an shutter (3) distinct and associated to each other; and / or wherein said method of assembling provides a step of installing said return element (5) operatively active on said float-shutter assembly (2, 3) to push it toward said closing position (PO); and / or wherein said method of assembling provides a step of installing a bubble breaking element (6) in correspondence of said main interface (11).

14. Process of using a device (100) according to any one of the claims 1 to 11, said process comprising at least the steps of:- associating said device (100) to a component, in particular a pipeline, of a hydraulic system in correspondence of said at least one main interface (11) so as to allow an exchange of said fluid flow between said cavity (10) and said component;- selecting a configuration of said device (100); wherein said step of selecting a configuration provides to selectively select a configuration of said device (100) between at least the following configurations:- automatic draining configuration (C1) for an automatic expulsion of the gaseous component of the fluid flow from said cavity (10);- manual draining configuration (C2) for a forced expulsion of said fluid flow from said cavity (10).

15. Process according to the preceding claim, wherein said step of selecting provides to selectively select also said closing configuration (CO) to prevent an outflow of said fluid flow from said cavity (10); and / or wherein said step of selecting provides a rototranslation of said configuration element (4) within said channel (13); and / or wherein said step of selecting provides a screwing or an unscrewing of said configuration element (4) within said draining interface (12).

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