Emergency bilge system

Abstract

The present disclosure relates to an emergency bilge system for a marine vessel having a bilge, comprising a seawater pump connected with a seawater cooling system for a power source and a seawater inlet, a sensor being arranged at low point at the bilge, the sensor is configured to detect a fluid present above a predetermined level at bilge, wherein a 3-way valve is arranged so as to be connected with the seawater inlet, the bilge and the seawater pump, wherein the 3-way valve is configured to selectively provide a first flow path between the seawater inlet and the seawater pump or a second flow path between the bilge and the seawater pump.

Description

TECHNICAL FIELD

[0001] The disclosure relates generally to marine safety. In particular aspects, the disclosure relates to an emergency bilge system. The disclosure can be applied to marine vessels, such as watercrafts, motorboats, work boats, sport vessels, boats, ships, sailing boats among other vessel types. Although the disclosure may be described with respect to a particular marine vessel, the disclosure is not restricted to any particular marine vessel.BACKGROUND

[0002] In the realm of marine engineering, ensuring the safety and operational integrity of vessels is of paramount importance. One critical aspect of this safety is effective bilge management. The bilge, a lowermost compartment of a ship where water, oil, and other fluids can accumulate, poses significant risks if not properly managed. Accumulation of fluids in the bilge can lead to stability issues, corrosion, or even catastrophic failure of essential systems. As such, emergency bilge systems are indispensable for marine vessels to quickly and efficiently manage unexpected fluid ingress.

[0003] Historically, emergency bilge systems have been developed to address these concerns. However, they often present significant challenges. Traditional solutions tend to be complex, integrating multiple components that contribute to their large size and cumbersome nature. This complexity not only makes the systems difficult to install and maintain but also means they occupy substantial space within the vessel. For vessels where space is a premium, such as smaller crafts or those with extensive equipment, this can be a critical drawback.

[0004] Moreover, the intricate design of existing systems often results in increased points of potential failure. Each additional component introduces a new variable that must be monitored and maintained, thereby increasing the likelihood of malfunction. This complexity can also lead to longer response times in emergency scenarios, where swift action is crucial. As such, the need for a streamlined, efficient emergency bilge system that occupies less space and reduces potential failure points is clear. Improved designs that simplify the architecture, minimize space usage, and enhance reliability are needed to better protect marine vessels from the dangers posed by bilge fluid accumulation.SUMMARY

[0005] According to a first aspect of the disclosure, an emergency bilge system for a marine vessel having a bilge, comprising: a seawater pump connected with a seawater cooling system for a power source and a seawater inlet, a sensor being arranged at low point at the bilge, the sensor is configured to detect a fluid present above a predetermined level at the bilge, wherein a 3-way valve is arranged so as to be connected with the seawater inlet, the bilge and the seawater pump, wherein the 3-way valve is configured to selectively provide a first flow path between the seawater inlet and the seawater pump or a second flow path between the bilge and the seawater pump. The first aspect of the disclosure may seek to address the complexity and space inefficiency of prior emergency bilge systems. A technical benefit may include increased reliability and space efficiency over prior art systems. By integrating a 3-way valve that allows selective flow paths, the system reduces the number of components required, simplifying the design and minimizing potential points of failure. This streamlined approach not only occupies less space, making it suitable for vessels with limited room, but also enhances the operational reliability and responsiveness during emergency bilge situations.

[0006] Optionally in some examples, including in at least one preferred example, the 3-way valve is configured to provide the second flow path when the sensor detects fluid above the predetermined level. A technical benefit may include ensuring that fluid is efficiently redirected from the bilge to the pump, thereby enhancing the system's responsiveness to rising fluid levels and improving overall safety.

[0007] Optionally in some examples, including in at least one preferred example, the seawater pump is configured to drain the bilge via the second flow path. A technical benefit may include providing a direct and efficient method for removing bilge water, enhancing the vessel's ability to maintain stability and prevent flooding.

[0008] Optionally in some examples, including in at least one preferred example, the 3-way valve is configured to provide the first flow path when the sensor detects fluid below the predetermined level. A technical benefit may include allowing the system to resume normal cooling operations without manual intervention, optimizing energy usage and maintaining engine performance.

[0009] Optionally in some examples, including in at least one preferred example, further comprising a control unit. A technical benefit may include centralized management of the bilge system, enabling automated responses and adjustments based on real-time sensor data, thus increasing operational efficiency.

[0010] Optionally in some examples, including in at least one preferred example, the control unit is operatively connected with the sensor, the 3-way valve and / or the seawater pump. A technical benefit may include enhanced coordination between components, facilitating seamless transition between operational modes and improving system reliability.

[0011] Optionally in some examples, including in at least one preferred example, the control unit is configured to control the 3-way valve based on detections of the sensor. A technical benefit may include precise and timely activation of the valve, ensuring that bilge water evacuation occurs promptly when needed, thus reducing the risk of overflow.

[0012] Optionally in some examples, including in at least one preferred example, the 3-way valve has a first port being fluidly connected with the seawater inlet, a second port being fluidly connected with the seawater pump, and a third port being fluidly connected with the bilge. A technical benefit may include flexible flow management within the system, allowing for efficient routing of fluids based on current needs.

[0013] Optionally in some examples, including in at least one preferred example, the first port is closed when the sensor detects fluid above the predetermined level. A technical benefit may include preventing seawater from entering the system when bilge water needs to be evacuated, thus prioritizing bilge management.

[0014] Optionally in some examples, including in at least one preferred example, the third port is closed when the sensor detects fluid below the predetermined level. A technical benefit may include ensuring the cooling system operates optimally by preventing bilge water from being unnecessarily processed when not required.

[0015] Optionally in some examples, including in at least one preferred example, the first port and the third port are unable to be open at the same time. A technical benefit may include preventing conflicting flow paths, thus ensuring the system operates efficiently without risk of cross-contamination or operational errors.

[0016] Optionally in some examples, including in at least one preferred example, the 3-way valve is an electrically-operated 3-way valve, a solenoid operated 3-way valve, a pneumatically actuated 3-way valve, a hydraulically-actuated 3-way valve or a motorized 3-way valve. A technical benefit may include offering a range of actuation methods to suit different vessel requirements, enhancing versatility and adaptability of the system.

[0017] Optionally in some examples, including in at least one preferred example, wherein an additional sensor is arranged in the vicinity of the sensor or above the sensor. A technical benefit may include increasing redundancy and reliability of the detection system, ensuring accurate fluid level monitoring and timely response to changes.

[0018] Optionally in some examples, including in at least one preferred example, the sensor is a float sensor, a capacitive sensor, an optical sensor, an ultrasonic sensor, a conductivity sensor, or a humidity sensor. A technical benefit may include offering a variety of sensing technologies to suit different environmental conditions and operational requirements, enhancing the system's adaptability.

[0019] Optionally in some examples, including in at least one preferred example, the seawater pump is configured to run at a constant speed or a variable speed. A technical benefit may include offering flexibility in pump operation to optimize energy usage and adapt to varying bilge water volumes.

[0020] Optionally in some examples, including in at least one preferred example, the seawater pump comprises a variable speed control to adjust the pump rate based on water volume present in the bilge or cooling demand at the cooling system. A technical benefit may include enhancing energy efficiency by matching pump activity with real-time needs, reducing operational costs and wear on the pump.

[0021] Optionally in some examples, including in at least one preferred example, one or more filters is / are arranged before an inlet to the seawater pump. A technical benefit may include protecting the pump from debris and contaminants, extending its lifespan and ensuring consistent performance.

[0022] Optionally in some examples, including in at least one preferred example, further comprising an alarm unit configured to provide alerts on a helm display and via a mobile application when the sensor detects fluid above the predetermined level. A technical benefit may include enhancing situational awareness for the crew, allowing for timely intervention and improved safety management.

[0023] According to a second aspect of the disclosure, a marine vessel comprising the emergency bilge system as disclosed herein. The second aspect of the disclosure may seek to address the complexity and space inefficiency of prior emergency bilge systems. A technical benefit may include increased reliability and space efficiency over prior art systems. By integrating a 3-way valve that allows selective flow paths, the system reduces the number of components required, simplifying the design and minimizing potential points of failure. This streamlined approach not only occupies less space, making it suitable for vessels with limited room, but also enhances the operational reliability and responsiveness during emergency bilge situations.

[0024] According to a third aspect of the disclosure, a method for managing bilge water in a marine vessel, comprising detecting fluid presence at or above a predetermined level on a power source using a sensor arranged at a low point in the bilge of the marine vessel; generating a signal from the sensor upon detecting the fluid presence above the predetermined level; activating a 3-way valve connected with a seawater inlet, the bilge, and a seawater pump, in response to the signal from the sensor; switching the 3-way valve to establish a second flow path between the bilge and the seawater pump to evacuate the bilge water; utilizing the seawater pump, which is connected with a cooling system for the power source, to pump bilge water out of the marine vessel through the established second flow path; returning the 3-way valve to a first flow path between the seawater inlet and the seawater pump once the fluid level falls below the predetermined level, thereby resuming normal cooling operation for the power source.

[0025] The third aspect of the disclosure may seek to address the complexity and space inefficiency of prior emergency bilge systems.

[0026] A technical benefit may include increased reliability and space efficiency over prior art systems. The method for managing bilge water emphasizes the automatic detection and response to fluid presence, ensuring quick activation of the 3-way valve. This automation minimizes manual intervention, reduces response time, and ensures efficient evacuation of bilge water, thereby maintaining vessel stability and safety while optimizing the use of onboard space and resources.

[0027] The disclosed aspects, examples (including any preferred examples), and / or accompanying claims may be suitably combined with each other as would be apparent to anyone of ordinary skill in the art. Additional features and advantages are disclosed in the following description, claims, and drawings, and in part will be readily apparent therefrom to those skilled in the art or recognized by practicing the disclosure as described herein.BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Examples are described in more detail below with reference to the appended drawings. FIG. 1 is an exemplary emergency bilge system according to an example. FIG. 2 is another exemplary emergency bilge system according to an example. FIG. 3 is an exemplary marine vessel according to an example. FIG. 4 is yet another exemplary emergency bilge system according to an example. FIGS. 5a-5b show an example of a 3-way valve providing a first flow path and a second flow path, respectively. DETAILED DESCRIPTION

[0029] The detailed description set forth below provides information and examples of the disclosed technology with sufficient detail to enable those skilled in the art to practice the disclosure.

[0030] In marine engineering, maintaining vessel safety and integrity is crucial, with effective bilge management being a key factor. The bilge, the lowest compartment of a ship, can accumulate water, oil, and other fluids, posing risks like stability issues, corrosion, or system failures if not managed properly. Emergency bilge systems are essential for swiftly addressing unexpected fluid ingress. However, traditional systems are often complex, large, and cumbersome, making them difficult to install and maintain, especially in vessels with limited space. This complexity also increases potential failure points and response times in emergencies. Therefore, there is a clear need for streamlined, efficient systems that occupy less space and enhance reliability to better protect vessels from bilge fluid risks.

[0031] The present disclosure offers significant advantages in terms of reliability and space efficiency compared to prior art systems. By incorporating a 3-way valve capable of providing selective flow paths, the system effectively reduces the number of necessary components. This reduction simplifies the overall design, minimizing potential failure points and enhancing system durability. The streamlined architecture occupies less physical space, making it ideal for vessels with constrained spatial environments or those carrying extensive equipment. Additionally, this design enhances operational reliability by ensuring rapid and efficient response to emergency bilge situations. The system's ability to swiftly redirect fluid flow optimizes the vessel's stability and safety, ultimately improving the marine vessel's overall performance and resilience in managing bilge water emergencies.

[0032] FIG. 1 is an exemplary emergency bilge system 1 according to an example. The emergency bilge system 1 for a marine vessel having a bilge 101. The emergency bilge system 1 comprises a seawater pump 2 connected with a seawater cooling system 3 for a power source 102 and a seawater inlet 4. In addition, a sensor 5 is arranged at low point at the bilge 101, the sensor 5 is configured to detect a fluid present above a predetermined level at the bilge 101. The sensor 5 is arranged in a position facilitating detection of fluid in the bilge 101 so that the present of fluid is detected easily and detected before the fluid flooding critical components being arranged in the bilge 101. According to the disclosure, a 3-way valve 6 is arranged so as to be connected with the seawater inlet 4, the bilge 101 and the seawater pump 2. The 3-way valve 6 is configured to selectively provide a first flow path between the seawater inlet 4 and the seawater pump 2 or a second flow path between the bilge 101 and the seawater pump 2. When the first flow path is provided, the cooling system 3 is receiving cooling water from the seawater inlet 4 which via the pump 2 is providing the cooling water to the cooling system 3. When the sensor 5 detects presence of fluid in the bilge 101 above the predetermined level, the second flow path is provided. Here the pump 2 is pumping the fluid out of the bilge 101 and into the cooling system 2, whereby the fluid present in the bilge 101 is used as cooling water in the cooling system 3 while the bilge 101 is being drained.

[0033] Hence, the 3-way valve 6 is configured to provide the second flow path when the sensor 5 detects fluid above the predetermined level. A technical benefit may include ensuring that fluid is efficiently redirected from the bilge to the pump, thereby enhancing the system's responsiveness to rising fluid levels and improving overall safety. The seawater pump 2 is configured to drain the bilge 101 via the second flow path. A technical benefit may include providing a direct and efficient method for removing bilge water, enhancing the vessel's ability to maintain stability and prevent flooding.

[0034] In the same manner, the 3-way valve 6 is configured to provide the first flow path when the sensor 5 detects fluid below the predetermined level. A technical benefit may include allowing the system to resume normal cooling operations without manual intervention, optimizing energy usage and maintaining engine performance.

[0035] The emergency bilge system 1 may further comprise a control unit 7. A technical benefit may include centralized management of the bilge system, enabling automated responses and adjustments based on real-time sensor data, thus increasing operational efficiency. The control unit 7 may include a microprocessor, microcontroller, programmable digital signal processor or another programmable device. The control unit 7 may also, or instead, include an application specific integrated circuit, a programmable gate array or programmable array logic, a programmable logic device, or a digital signal processor. Where the control unit includes a programmable device such as the microprocessor, microcontroller or programmable digital signal processor mentioned above, the processor may further include computer executable code that controls operation of the programmable device.

[0036] The control unit 7 may be part of the electrical vessel control (EVC) system of the marine vessel.

[0037] The control unit 7 may be operatively connected with the sensor 5, the 3-way valve 6 and / or the seawater pump 2. A technical benefit may include enhanced coordination between components, facilitating seamless transition between operational modes and improving system reliability. The control unit 7 is configured to control the 3-way valve 6 based on detections of the sensor 5. A technical benefit may include precise and timely activation of the valve, ensuring that bilge water evacuation occurs promptly when needed, thus reducing the risk of overflow.

[0038] The 3-way valve 6 may be an electrically-operated 3-way valve, a solenoid operated 3-way valve, a pneumatically actuated 3-way valve, a hydraulically-actuated 3-way valve or a motorized 3-way valve. A technical benefit may include offering a range of actuation methods to suit different vessel requirements, enhancing versatility and adaptability of the system.

[0039] The electrically-operated 3-way valve, a solenoid operated 3-way valve may be activated electrically by sending a current through a solenoid coil, causing the 3-way valve to switch positions. The pneumatically-actuated 3-way valve may be activated by applying air pressure to a pneumatic actuator, which moves the valve to the desired position. The hydraulically-actuated 3-way valve may be operated using hydraulic fluid pressure to move the valve mechanism. The motorized 3-way valve may be equipped with an electric motor that rotates the valve to open or close specific flow paths.

[0040] Moreover, the 3-way valve 6 may comprise a fail-safe mechanism to default to bilge water drainage in case of a high water level in the bilge 101. A technical benefit may include ensuring system reliability by providing a safety net that guarantees bilge water is evacuated even in the event of component failure.

[0041] Also, the 3-way valve 6 may be capable of gradual adjustment to control the flow rate precisely. A technical benefit may include optimizing flow rates to match the current demands, reducing wear and tear on system components and improving energy efficiency.

[0042] Additionally, the system may further comprise a manual override function for the 3-way valve 6 to allow manual control of bilge water drainage. A technical benefit may include providing crew members with the ability to manually manage bilge operations in unforeseen circumstances, enhancing safety and control.

[0043] Furthermore, the emergency bilge system 1 according to the disclosure may also be used during preserving the power source 102, for instance during longer storage, such as winter storage This may be performed by providing the second flow path and connect the end of the second flow path being near the bilge to a preserving fluid. The pump may then pump the preserving fluid via the second flow path to the cooling system thereby preserving the power source. The system may also be used to circulate other fluids in the system.

[0044] In FIG. 2, another emergency bilge system 1 for a marine vessel having a bilge 101 is shown. The emergency bilge system 1 comprises the seawater pump 2 connected with the seawater cooling system 3 for the power source 102 and the seawater inlet 4. In the present example, the sensor 5 is arranged at low point on the power source 102 at the bilge 101, the sensor 5 is configured to detect a fluid present above a predetermined level at the power source 102. The 3-way valve 6 is arranged so as to be connected with the seawater inlet 4, the bilge 101 and the seawater pump 2, wherein the 3-way valve 6 is configured to selectively provide a first flow path between the seawater inlet 4 and the seawater pump 2 or a second flow path between the bilge 101 and the seawater pump 2.

[0045] Furthermore, an additional sensor 9 may be arranged in the vicinity of the sensor 5 or above the sensor 5. A technical benefit may include increasing redundancy and reliability of the detection system, ensuring accurate fluid level monitoring and timely response to changes. The sensor 5 and the additional sensor 9 may be the same sensors or they may be different.

[0046] The sensor(s) 5, 9 may be a float sensor, a capacitive sensor, an optical sensor, an ultrasonic sensor, a conductivity sensor, or a humidity sensor. A technical benefit may include offering a variety of sensing technologies to suit different environmental conditions and operational requirements, enhancing the system's adaptability.

[0047] The float sensor may utilize a buoyant float that rises or falls with the water level, triggering a switch or sensor mechanism. The capacitive sensor may measure changes in capacitance caused by the presence of water, which acts as a dielectric material. The optical sensor may use light to detect water level changes, typically employing an infrared beam that is refracted or absorbed by water. The ultrasonic sensor may emit ultrasonic waves and measures the time it takes for the echo to return, determining water presence based on distance. The conductivity sensor may detect water by measuring electrical conductivity; water increases conductivity between sensor probes. The humidity sensor may be configured to measure ambient humidity levels, which can indicate water presence in specific environments.

[0048] Furthermore, the sensor 5 may comprise self-diagnostic capabilities to ensure reliable operation. A technical benefit may include increasing system reliability by allowing for proactive maintenance and early detection of sensor faults, minimizing downtime and operational risks.

[0049] Moreover, the sensor 5 may be configured to be calibrated to detect specific water salinity levels for more accurate detection. A technical benefit may include improving detection accuracy by accounting for variable salinity levels, ensuring precise monitoring and effective bilge management.

[0050] The seawater pump 2 may be configured to run at a constant speed or a variable speed. A technical benefit may include offering flexibility in pump operation to optimize energy usage and adapt to varying bilge water volumes. Also, the seawater pump 2 may comprise a variable speed control to adjust the pump rate based on water volume present in the bilge 101 or cooling demand at the cooling system 3. A technical benefit may include enhancing energy efficiency by matching pump activity with real-time needs, reducing operational costs and wear on the pump.

[0051] In addition, the seawater pump 2 may comprise a self-cleaning feature to prevent blockages. A technical benefit may include maintaining pump efficiency and reliability by reducing maintenance requirements and preventing system interruptions due to clogs.

[0052] As seen in FIG. 2, one or more filters 8 may be arranged before an inlet 12 to the seawater pump 2. A technical benefit may include protecting the pump from debris and contaminants, extending its lifespan and ensuring consistent performance. A combination of properties may be incorporated into the filter(s). A first property may be capturing larger debris and particles, preventing them from entering the pump 2. A second property may be removing finer particulates, such as sand and silt, which could otherwise cause abrasion or blockages. A third property may be separating emulsified oils and other contaminants from the water, minimizing the risk that contaminated water reaches the pump. Different filters may be arranged as a filter unit or separate filter may be arranged in series. The filter 8 may be positioned so as they are easily replaced.

[0053] In FIG. 3, a marine vessel 100 is shown. The marine vessel 100 comprises the emergency bilge system 1 as disclosed herein. The marine vessel 100 having the bilge 101. The bilge 101 of the marine vessel 100 is the lowest compartment within the hull 104, specifically designed to collect water, oil, and other fluids that accumulate through leaks, condensation, or spills during regular vessel operations. As the area where the bottom of the ship curves to meet the vertical sides, the bilge is strategically positioned to collect these substances, preventing them from affecting other parts of the vessel. Proper management of the bilge 101 is crucial to maintain the vessel's stability and integrity, as excessive fluid accumulation can lead to corrosion, system failures, and loss of buoyancy.

[0054] The marine vessel 100 comprises a power source 102 and the cooling system 3. The power source may be an engine, or a motor being configured to power the marine vessel 100.

[0055] Additionally, the emergency bilge system may further comprise an alarm unit 13 configured to provide alerts on a helm display 103 and via a mobile application 14 when the sensor 5 detects fluid above the predetermined level. A technical benefit may include enhancing situational awareness for the crew, allowing for timely intervention and improved safety management. The alarm unit 13 may comprise visual indicators on the helm display 103 for different bilge water levels. A technical benefit may include providing clear and immediate feedback on bilge conditions, facilitating quick decision-making and response.

[0056] Also, the alarm unit 13 may comprise an audible alarm to complement visual alerts on the helm display 103. A technical benefit may include ensuring alerts are noticed promptly, even in noisy environments, to prioritize crew attention and response.

[0057] Furthermore, the mobile application 14 may provide real-time monitoring and control of the bilge system 1 remotely. A technical benefit may include enhancing operational flexibility by allowing crew members to manage bilge operations from anywhere, ensuring consistent monitoring and control. Moreover, the mobile application 14 may allow for historical data logging of bilge water events. A technical benefit may include providing insights into bilge trends and system performance, enabling data-driven maintenance and operational decisions.

[0058] Also, the alarm unit 13 may comprise a test mode for verifying functionality before vessel operation. A technical benefit may include ensuring system readiness and functionality, reducing the risk of undetected faults during critical operations. In an example, the alarm unit 13 may comprise a priority alert mechanism for severe bilge water conditions. A technical benefit may include ensuring critical alerts are prioritized for immediate action, enhancing the safety and security of the vessel.

[0059] Furthermore, the emergency bilge system 1 is configured to operate in both freshwater and saltwater environments. A technical benefit may include increasing the versatility and applicability of the bilge system across different marine settings, ensuring consistent performance.

[0060] Additionally, the system 1 is designed to minimize energy consumption during operation. A technical benefit may include reducing operational costs and environmental impact, enhancing the overall efficiency and sustainability of the vessel's bilge management system.

[0061] In FIG. 4, another example of the emergency bilge system 1 is shown. Compared to the previously shown examples, the emergency bilge system 1 shown in FIG. 4 comprises a second 3-way valve 10. The second 3-way valve 10 is arranged downstream the pump 2 and before the cooling system 3. The second 3-way valve 10 is arranged so as to be connected with the pump 2, the cooling system 3 and an outlet 11. In a circumstance, where a high level of fluid is present in the bilge 101, a third flow path between the pump 2 and the outlet 11 may be provided in the second 3-way valve 10 so that the extensive fluid in bilge 101 may be pumped directly to the outlet 11 thereby by-passing the cooling system 3. Hereby, it is possible to rapidly drain the bilge 101.

[0062] In FIGS. 5a-5b, an example of the 3-way valve 6 is shown in two different positions. The 3-way valve 3 has a first port 15 being fluidly connected with the seawater inlet 4, a second port 16 being fluidly connected with the seawater pump 2, and a third port 17 being fluidly connected with the bilge 101. A technical benefit may include flexible flow management within the system, allowing for efficient routing of fluids based on current needs.

[0063] As seen in FIG. 5a, the third port 17 is closed when the sensor detects fluid below the predetermined level. A technical benefit may include ensuring the cooling system operates optimally by preventing bilge water from being unnecessarily processed when not required. Hence, the first flow path 18 between the seawater inlet 4 and the seawater pump 2 is provided.

[0064] As seen in FIG. 5b, the first port 15 is closed when the sensor detects fluid above the predetermined level. A technical benefit may include preventing seawater from entering the system when bilge water needs to be evacuated, thus prioritizing bilge management. Hence, the second flow path 19 between the bilge 101 and the seawater pump 2 is provided.

[0065] A closing part 20 is arranged in the 3-way valve 6. The closing part 20 is configured to be moved via a pivot joint between two positions. A first position wherein the third port 17 is closed, as seen in FIG. 5a, and a second position wherein the first port 15 is closed as seen in FIG. 5b. The position of the closing part 20 may be controlled by the control unit.

[0066] In an example, the first port 15 and the third port 17 are unable to be open at the same time. A technical benefit may include preventing conflicting flow paths, thus ensuring the system operates efficiently without risk of cross-contamination or operational errors.

[0067] In addition, a drain conduit 21 is arranged between the 3-way valve 6 and the bilge 101. A technical benefit may include providing a direct and efficient pathway for bilge water evacuation, minimizing fluid resistance and enhancing system performance. A first end 22 of the drain conduit 21 may be arranged below a position of the sensor. A technical benefit may include ensuring complete drainage of bilge water, preventing fluid accumulation and maintaining vessel stability.

[0068] The present disclosure also relates to a method for managing bilge water in a marine vessel 100, comprising detecting fluid presence at or above a predetermined level in the bilge 101 using a sensor 5 arranged at a low point in the bilge 101 of the marine vessel 100; generating a signal from the sensor 5 upon detecting the fluid presence above the predetermined level; activating a 3-way valve 6 connected with a seawater inlet 4, the bilge 101, and a seawater pump 2, in response to the signal from the sensor 5; switching the 3-way valve 6 to establish a second flow path 19 between the bilge 101 and the seawater pump 2 to evacuate the bilge water; utilizing the seawater pump 2, which is connected with a cooling system 3 for the power source 102, to pump bilge water out of the marine vessel 100 through the established second flow path 19; returning the 3-way valve 6 to a first flow path 18 between the seawater inlet 4 and the seawater pump 2 once the fluid level falls below the predetermined level, thereby resuming normal cooling operation for the power source.

[0069] Certain aspects and variants of the disclosure are set forth in the following examples numbered consecutive below.

[0070] Example 1: An emergency bilge system (1) for a marine vessel (100) having a bilge (101), comprising: a seawater pump (2) connected with a seawater cooling system (3) for a power source (102) and a seawater inlet (4), a sensor (5) being arranged at low point at the bilge (101), the sensor (5) is configured to detect a fluid present above a predetermined level at bilge (101), wherein a 3-way valve (6) is arranged so as to be connected with the seawater inlet (4), the bilge (101) and the seawater pump (2), wherein the 3-way valve (6) is configured to selectively provide a first flow path (18) between the seawater inlet (4) and the seawater pump (2) or a second flow path (19) between the bilge (101) and the seawater pump (2).

[0071] Example 2: The emergency bilge system (1) of Example 1, wherein the 3-way valve (6) is configured to provide the second flow path (19) when the sensor (5) detects fluid above the predetermined level.

[0072] Example 3: The emergency bilge system (1) of Example 1 or 2, wherein the seawater pump (2) is configured to drain the bilge (101) via the second flow path (19).

[0073] Example 4: The emergency bilge system (1) of any of Examples 1-3, wherein the 3-way valve (6) is configured to provide the first flow path (18) when the sensor (5) detects fluid below the predetermined level.

[0074] Example 5: The emergency bilge system (1) of any of the Examples 1-4, further comprising a control unit (7).

[0075] Example 6: The emergency bilge system (1) of Example 5, wherein the control unit (7) is operatively connected with the sensor (5), the 3-way valve (6) and / or the seawater pump (2).

[0076] Example 7: The emergency bilge system (1) of Example 6, wherein the control unit (7) is configured to control the 3-way valve (6) based on detections of the sensor (5).

[0077] Example 8: The emergency bilge system (1) of any of Examples 1-7, wherein the 3-way valve (6) has a first port (15) being fluidly connected with the seawater inlet (4), a second port (16) being fluidly connected with the seawater pump (2), and a third port (17) being fluidly connected with the bilge (101).

[0078] Example 9: The emergency bilge system (1) of Example 8, wherein the first port (15) is closed when the sensor (5) detects fluid above the predetermined level.

[0079] Example 10: The emergency bilge system (1) of Example 8, wherein the third port (17) is closed when the sensor (5) detects fluid below the predetermined level.

[0080] Example 11: The emergency bilge system (1) of Example 8, wherein the first port (15) and the third port (17) are unable to be open at the same time.

[0081] Example 12: The emergency bilge system (1) of any of Examples 1-11, wherein the 3-way valve (6) is an electrically-operated 3-way valve, a solenoid operated 3-way valve, a pneumatically actuated 3-way valve, a hydraulically-actuated 3-way valve or a motorized 3-way valve.

[0082] Example 13: The emergency bilge system (1) of any of Examples 1-12, wherein the 3-way valve is equipped with a fail-safe mechanism to default to bilge water drainage in case of a high water level in the bilge.

[0083] Example 14: The emergency bilge system (1) of any of the Examples 1-14, wherein the 3-way valve (6) is capable of gradual adjustment to control the flow rate precisely.

[0084] Example 15: The emergency bilge system (1) of any of the Examples 1-14, further comprising a manual override function for the 3-way valve (6) to allow manual control of bilge water drainage.

[0085] Example 16: The emergency bilge system (1) of any of the Examples 1-15, wherein an additional sensor (9) is arranged in the vicinity of the sensor (5) or above the sensor (5).

[0086] Example 17: The emergency bilge system (1) of any of the Examples 1-16, wherein the sensor (5, 9) is a float sensor, a capacitive sensor, an optical sensor, an ultrasonic sensor, a conductivity sensor, or a humidity sensor.

[0087] Example 18: The emergency bilge system (1) of any of the Examples 1-17, wherein the sensor (5) comprises self-diagnostic capabilities to ensure reliable operation.

[0088] Example 19: The emergency bilge system (1) of any of the Examples 1-18, wherein the sensor (5) is configured to be calibrated to detect specific water salinity levels for more accurate detection.

[0089] Example 20: The emergency bilge system (1) of any of the Examples 1-19, wherein a drain conduit (21) is arranged between the 3-way valve (6) and the bilge (101).

[0090] Example 21: The emergency bilge system (1) of Example 20, wherein a first end (22) of the drain conduit (21) is arranged below a position of the sensor (5).

[0091] Example 22: The emergency bilge system (1) of any of the Examples 1-21, wherein the seawater pump (2) is configured to run at a constant speed or a variable speed.

[0092] Example 23: The emergency bilge system (1) of any of the Examples 1-22, wherein the seawater pump (2) comprises a variable speed control to adjust the pump rate based on water volume present in the bilge (101) or cooling demand at the cooling system (3).

[0093] Example 24: The emergency bilge system (1) of any of the Examples 1-23, wherein the seawater pump (2) comprises a self-cleaning feature to prevent blockages.

[0094] Example 25: The emergency bilge system (1) of any of the Examples 1-25, wherein one or more filter(s) (8) is / are arranged before an inlet (12) to the seawater pump (2).

[0095] Example 26: The emergency bilge system (1) of any of the Examples 1-25, further comprising an alarm unit (13) configured to provide alerts on a helm display (103) and via a mobile application (14) when the sensor (5) detects fluid above the predetermined level.

[0096] Example 27: The emergency bilge system (1) of Example 26, wherein the alarm unit (13) comprises visual indicators on the helm display (103) for different bilge water levels.

[0097] Example 28: The emergency bilge system (1) of Example 26 and / or 27, wherein the alarm unit (13) comprises an audible alarm to complement visual alerts on the helm display (103).

[0098] Example 29: The emergency bilge system (1) of Example 26, wherein the mobile application (14) provides real-time monitoring and control of the bilge system (1) remotely.

[0099] Example 30: The emergency bilge system (1) of Example 29, wherein the mobile application (14) allows for historical data logging of bilge water events.

[0100] Example 31: The emergency bilge system (1) of any of the Examples 26-30, wherein the alarm unit (13) comprises a test mode for verifying functionality before vessel operation.

[0101] Example 32: The emergency bilge system (1) of any of the Examples 26-31, wherein the alarm unit (13) comprises a priority alert mechanism for severe bilge water conditions.

[0102] Example 33: The emergency bilge system (1) of any of the Examples 1-32, wherein the system is configured to operate in both freshwater and saltwater environments.

[0103] Example 34: The emergency bilge system (1) of any of the Examples 1-33, wherein the system is designed to minimize energy consumption during operation.

[0104] Example 35: The emergency bilge system (1) of any of the Examples 1-34, wherein the sensor (5) is arranged at low point on the power source (102) at the bilge (101) or is arranged on a wall or other component at the bilge (101).

[0105] Example 36: The emergency bilge system (1) of Example 35, wherein the sensor (5) is configured to detect the fluid present above the predetermined level at the power source (102).

[0106] Example 37: A marine vessel (100) comprising the emergency bilge system (1) of any of the Examples 1-36.

[0107] Example 38: The marine vessel (100) of Example 37, further comprising a bilge (101), a power source (102) and a cooling system (3).

[0108] Example 39: The marine vessel (100) of Example 38, wherein the power source (102) is an engine or a motor.

[0109] Example 40: A method for managing bilge water in a marine vessel (100), comprising detecting fluid presence at or above a predetermined level in a bilge (101) using a sensor (5) arranged at a low point in the bilge (101) of the marine vessel (100); generating a signal from the sensor (5) upon detecting the fluid presence above the predetermined level; activating a 3-way valve (3) connected with a seawater inlet (4), the bilge (101), and a seawater pump (2), in response to the signal from the sensor (5); switching the 3-way valve (6) to establish a second flow path (19) between the bilge (101) and the seawater pump (2) to evacuate the bilge water; utilizing the seawater pump (2), which is connected with a cooling system (3) for the power source (102), to pump bilge water out of the marine vessel (100) through the established second flow path (19); returning the 3-way valve (6) to a first flow path (18) between the seawater inlet (4) and the seawater pump (2) once the fluid level falls below the predetermined level, thereby resuming normal cooling operation for the power source (102).

[0110] The terminology used herein is for the purpose of describing particular aspects only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. It will be further understood that the terms "comprises," "comprising," "includes," and / or "including" when used herein specify the presence of stated features, integers, actions, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, actions, steps, operations, elements, components, and / or groups thereof.

[0111] It will be understood that, although the terms first, second, etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element without departing from the scope of the present disclosure.

[0112] Relative terms such as "below" or "above" or "upper" or "lower" or "horizontal" or "vertical" may be used herein to describe a relationship of one element to another element as illustrated in the Figures. It will be understood that these terms and those discussed above are intended to encompass different orientations of the device in addition to the orientation depicted in the Figures. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.

[0113] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It will be further understood that terms used herein should be interpreted as having a meaning consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0114] It is to be understood that the present disclosure is not limited to the aspects described above and illustrated in the drawings; rather, the skilled person will recognize that many changes and modifications may be made within the scope of the present disclosure and appended claims. In the drawings and specification, there have been disclosed aspects for purposes of illustration only and not for purposes of limitation, the scope of the disclosure being set forth in the following claims.

Claims

1. An emergency bilge system (1) for a marine vessel (100) having a bilge (101), comprising: a seawater pump (2) connected with a seawater cooling system (3) for a power source (102) and a seawater inlet (4), a sensor (5) being arranged at low point at the bilge (101), the sensor (5) is configured to detect a fluid present above a predetermined level at bilge (101), wherein a 3-way valve (6) is arranged so as to be connected with the seawater inlet (4), the bilge (101) and the seawater pump (2), wherein the 3-way valve (6) is configured to selectively provide a first flow path (18) between the seawater inlet (4) and the seawater pump (2) or a second flow path (19) between the bilge (101) and the seawater pump (2).

2. The emergency bilge system (1) of claim 1, wherein the 3-way valve (6) is configured to provide the second flow path (19) when the sensor (5) detects fluid above the predetermined level.

3. The emergency bilge system (1) of claim 1 or 2, wherein the seawater pump (2) is configured to drain the bilge (101) via the second flow path (19).

4. The emergency bilge system (1) of any of claims 1-3, wherein the 3-way valve (6) is configured to provide the first flow path (18) when the sensor (5) detects fluid below the predetermined level.

5. The emergency bilge system (1) of any of the claims 1-4, further comprising a control unit (7).

6. The emergency bilge system (1) of claim 5, wherein the control unit (7) is operatively connected with the sensor (5), the 3-way valve (6) and / or the seawater pump (2).

7. The emergency bilge system (1) of claim 6, wherein the control unit (7) is configured to control the 3-way valve (6) based on detections of the sensor (5).

8. The emergency bilge system (1) of any of claims 1-7, wherein the 3-way valve (6) has a first port (15) being fluidly connected with the seawater inlet (4), a second port (16) being fluidly connected with the seawater pump (2), and a third port (17) being fluidly connected with the bilge (101).

9. The emergency bilge system (1) of claim 8, wherein the first port (15) is closed when the sensor (5) detects fluid above the predetermined level.

10. The emergency bilge system (1) of claim 8, wherein the third port (17) is closed when the sensor (5) detects fluid below the predetermined level.

11. The emergency bilge system (1) of any of the claims 1-10, wherein an additional sensor (9) is arranged in the vicinity of the sensor (5) or above the sensor (5).

12. The emergency bilge system (1) of any of the claims 1-11, wherein the seawater pump (2) is configured to run at a constant speed or a variable speed.

13. The emergency bilge system (1) of any of the claims 1-12, further comprising an alarm unit (13) configured to provide alerts on a helm display (103) and via a mobile application (14) when the sensor (5) detects fluid above the predetermined level.

14. A marine vessel (100) comprising the emergency bilge system (1) of any of the claims 1-13.

15. A method for managing bilge water in a marine vessel (100), comprising - detecting fluid presence at or above a predetermined level in a bilge (101) using a sensor (5) arranged at a low point in the bilge (101) of the marine vessel (100); - generating a signal from the sensor (5) upon detecting the fluid presence above the predetermined level; - activating a 3-way valve (3) connected with a seawater inlet (4), the bilge (101), and a seawater pump (2), in response to the signal from the sensor (5); - switching the 3-way valve (6) to establish a second flow path (19) between the bilge (101) and the seawater pump (2) to evacuate the bilge water; - utilizing the seawater pump (2), which is connected with a cooling system (3) for the power source (102), to pump bilge water out of the marine vessel (100) through the established second flow path (19); - returning the 3-way valve (6) to a first flow path (18) between the seawater inlet (4) and the seawater pump (2) once the fluid level falls below the predetermined level, thereby resuming normal cooling operation for the power source (102).

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