Flow rate sensitive throttle valve
The flow rate-sensitive throttle valve with a spring mechanism addresses the limitations of existing designs by automatically throttling fluid flow when exceeded, ensuring quick response and reducing pressure differences, thus enhancing system stability and efficiency.
Patent Information
- Application Number
- PCT/TR2024/051306
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-07-24
AI Technical Summary
Existing flow rate-sensitive throttle valves in hydraulic systems face issues such as continuous throttling without switching, high maintenance costs, and complex mechanical structures that hinder quick response and increase production costs, especially in mobile applications.
A flow rate-sensitive throttle valve with a spring mechanism that automatically adjusts to throttle fluid flow when a specified rate is exceeded, featuring a line-type structure without electronic components, allowing quick reaction to throttling needs and reducing pressure differences.
The valve provides quick and efficient throttling without external intervention, reducing maintenance costs and pressure differences, while maintaining system stability and energy efficiency.
Smart Images

Figure TR2024051306_24072025_PF_FP_ABST
Abstract
Description
[0001] FLOW RATE SENSITIVE THROTTLE VALVE
[0002] Field of the Invention
[0003] The present invention relates to a valve mounted on the line within the hydraulic system, sensitive to fluid flow, and activating the internal valve mechanism and reducing the flow if the specified flow rate is exceeded.
[0004] State of the art
[0005] Currently, the flow rate-sensitive throttle valve is a type of flow control valve used to regulate fluid flow at a specific rate. This valve is designed to control fluid flow and ensure that it does not exceed a predetermined rate. These valves are generally used in industrial systems and can be found in many different applications. For example, controlling flow rate is important in chemical processes, water treatment plants, power generation and other industrial applications. Flow rate-sensitive throttle valves typically incorporate a control mechanism or sensor to adjust fluid flow.. This sensor measures the current flow rate of the fluid and is integrated with a feedback mechanism to adjust the opening or closing of the valve. Thus, the valve can be automatically adjusted to maintain a certain flow level or keep the same within a certain range. Such valves are used in process control systems and provide advantages such as ensuring the stability of production processes, preventing equipment wear and increasing energy efficiency.
[0006] In the state of the art, line type throttles are generally used to function as throttle valves. Since these types of throttles perform the throttling operation continuously, there is no such thing as switching on and off. If throttling is not needed, they tend to reduce the fluid flow in the line.
[0007] Another available technique involves hand-adjustable throttles. However, since these types of throttles require operator intervention, they cannot react quickly to the throttling need of the system. This is a disadvantage especially in mobile hydraulic applications.
[0008] Another available technique includes solenoid throttles. However, such throttles are not line type in the system, they operate as block type. This causes a pressure difference due to the block type, even if the throttle is not working. In addition, in order to drive the solenoid valves, it is necessary to edit the software in the control unit and also install an electrical line, which makes maintenance costs and installation difficult.
[0009] In another existing technique, the internal structures of hand-adjustable and solenoid throttles consist of parts that are difficult to process in order to direct the fluid to the throttling mechanism. This increases the production cost.
[0010] As a result of the researches made on the subject, document No CN210716017U is encountered. In the application, a throttling device that provides the flow measurement range with a valve attached to a shaft in a pipeline is mentioned. However, there is no information about a throttling mechanism that specifically adjusts the flow rate with a spring.
[0011] As a result of another research made on the subject, another document No CN218761438U is encountered. The application mentions a valve system comprising a throttling block. However, there is no information about a throttling mechanism that specifically adjusts the flow rate with a spring.
[0012] The flow rate-sensitive throttle valve differs from the current technique with a spring and a valve structure that moves depending on this spring. The throttling process is controlled by the flow rate, with the valve opening or closing in response to the force exerted by the fluid flow, influenced by the spring.. This simple technical effect provided by the flow rate sensitive throttle valve and without any external intervention is not expected to be achieved with the state of the art. It seems that a person skilled in the art cannot demonstrate this technical effect provided by the flow rate sensitive throttle valve, neither with his / her general knowledge nor with the state of the art. In this sense, it can be seen that the flow rate sensitive throttle valve differs from the state of the art.
[0013] As a result due to the abovementioned disadvantages and the insufficiency of the current solutions regarding the subject matter, a development is required to be made in the relevant technical field.
[0014] Object of the Invention
[0015] The present invention seeks to address the aforementioned disadvantages by improving upon existing designs.. The main object of the present invention is to provide a valve mounted on the hydraulic line, sensitive to fluid flow, and activating the internal valve mechanism and reducing the flow if the specified flow rate is exceeded.
[0016] In order to fulfil the purposes described above, the invention is a flow rate sensitive throttling valve mounted on the line in the hydraulic system, the general area of use of the valve is a flow rate sensitive throttle valve used in systems with hydraulic lines, which operates the in-valve mechanism and throttles the flow in case of exceeding a determined flow rate value in the system, comprising of the following; the main body containing the spring adjustment pin, valve pin slots and the valve, the mounting body to ensure that the valve is line type by mounting to the main body, the valve that meets the flow and creates lifting force according to the amount of flow and does not restrict the flow of the system when the flow is low and does not throttle, spring to fix the valve part to the body and to ensure that it opens and throttling is realized with the force transferred from the valve according to the amount of flow, setscrew fixing the spring to the valve part, valve pin centering the valve part, spring adjusting pin providing bearing for the spring and allowing the spring force to be adjusted by varying the tension of the spring part according to the amount of compression, o-ring seal for sealing the pins, o- ring for sealing between the bodies and bolt for mounting the bodies together.
[0017] The structural and characteristic features of the present invention will be understood clearly by the following drawings and the detailed description made with reference to these drawings and therefore the evaluation shall be made by taking these figures and the detailed description into consideration.
[0018] Figures Clarifying the Invention
[0019] Figure 1 is a representative view of the flow rate-sensitive throttle valve of the present invention.
[0020] Figure 2 is a representative perspective and section view of the flow rate-sensitive throttle valve of the present invention.
[0021] Figure 3 is a representative view of the flow rate-sensitive throttle valve of the present invention.
[0022] Figure 4 is a representative view of the flow rate-sensitive throttle valve of the present invention. Figure 5 is a representative view of the flow rate-sensitive throttle valve of the present invention.
[0023] Description of the Part References
[0024] 1. Main body
[0025] 2. Mounting body
[0026] 3. Valve
[0027] 4. Spring
[0028] 5. Setscrew
[0029] 6. Valve pin
[0030] 7. Spring adjustment pin
[0031] 8. O ring felt
[0032] 9. O ring
[0033] 10. Bolt
[0034] 11. Flow rate-sensitive throttle valve
[0035] Detailed Description of the Invention
[0036] In this detailed description, the preferred embodiments of the flow rate-sensitive throttle valve (11) of the present invention are described by means of examples only for clarifying the subject matter.
[0037] The flow rate-sensitive throttle valve (11) is activated only when the specified flow rate is exceeded. When the flow rate is low, it is disabled and does not throttle. The flow rate-sensitive throttle valve (11) automatically throttles when the flow rate increases since it is flow rate sensitive. It does not require any external intervention. In this case, the system reacts quickly to the throttling requirement.
[0038] The flow rate-sensitive throttle valve (11), does not perform unwanted throttling when it is not working due to its wide line type structure and does not cause a pressure difference in the line. Additionally, it does not contain any electronic elements. This provides ease of maintenance and installation.
[0039] The flow rate-sensitive throttle valve (11) consists of the following elements; main body (1), mounting body (2), valve (3), spring (4), setscrew (5), valve pin (6), spring adjustment pin (7), o ring felt (8), o ring (9) and bolt (10).
[0040] The main body (1) contains special slots for the spring adjustment pin (7) and valve pin
[0041] (6). In addition, the valve (3) is also located inside this body. The mounting body (2) is mounted on the main body (1), ensuring that the valve has a line type feature. The valve (3), with its specific configuration, meets the flow and creates lifting force according to the amount of flow. The valve (3) does not restrict the flow of the system and does not throttle when the flow is low. The spring (4) fixes the valve (3) part to the body in normal condition. Depending on the amount of flow, the spring (4) opens with the force transferred from the valve (3) and plays a role in the throttling process. The setscrew (5) ensures that the spring (4) is fixed to the valve (3) part. The valve pin (6) centers the valve (3) part. The spring adjustment pin (7) provides bearing for the spring (4). It allows the spring (4) force to be adjusted by changing the tension of the spring (4) part according to the tightening amount. O ring seal (8) provides sealing for the pins. It prevents hydraulic oil leakage between the pins. O-Ring (9) provides sealing between the bodies. It prevents hydraulic oil leakage between the bodies. The bolt (10) ensures the assembly of the bodies to each other.
[0042] The flow rate-sensitive throttle valve (11) ensures that the flow in the system is reduced. The flow throttling mechanism in its internal structure is automatically adjusted according to the flow amount. The flow rate at which the in-system flow throttling mechanism starts to throttle can be adjusted with the spring adjustment pin
[0043] (7). With the help of its line type structure, it does not create a pressure difference in the system when the mechanism is not activated.
[0044] The spring (4) is connected to the spring adjustment pin (7). The spring adjustment pin (7) and the O-ring felt (8) are engaged to the main body (1). The spring (4) is connected to the valve (3) using the setscrew (5). The valve pin (6) engages the valve part (3) to the main body (1). The mounting body (2) is connected to the main body (1) via the bolt (10) by placing an O-ring (9) in between. The direction of flow is from the main body (1) to the mounting body (2). As the flow rate increases, the load on the valve (3) increases and this increased load pushes the valve (3) to close in the throttling direction due to the design of the valve (3). When the flow rate is low, the spring (4) tends to keep the valve (3) open. However, as the flow rate increases, the force created by the liquid on the valve (3) overcomes the spring (4) force and the valve (3) closes. The spring adjustment pin (7) is an adjustable pin. Depending on the amount of tightening, it changes the length of the spring (4) and determines the force of the spring (4) on the valve (3). When the flow rate decreases, the force of the spring (4) overcomes the force of the liquid and the valve (3) closes again.
Claims
CLAIMS1. Flow rate-sensitive throttle valve mounted on the line in the hydraulic system, used in systems with hydraulic lines in the general area of use of the valve, which operates the in-valve mechanism and throttles the flow if it exceeds a specified flow rate value in the system, characterized in that, it comprises the following;• main body (1), which houses the spring adjustment pin (7), valve pin (6) slots and valve (3),• mounting body (2) to ensure that the valve has a line type feature by being mounted on the main body (1),• valve (3), which meets the flow and creates buoyancy force according to the amount of flow and does not restrict the flow of the system and does not throttle when the flow is low,• spring (4) for fixing the valve (3) part to the body and ensuring that it opens and throttling is realized with the force transferred from the valve (3) according to the amount of flow,• setscrew (5) that fixes the spring (4) to the valve (3) part,• valve pin (6), which centers the valve (3) part,• spring adjustment pin (7), which provides bearing for the spring (4) and allows the spring (4) force to be adjusted by changing the tension of the spring (4) part according to the tightening amount,• O-ring seal (8), which provides sealing for the pins,O-ring (9), which provides sealing between bodies and bolt (10) which ensures the assembly of the bodies to each other.
Citation Information
Patent Citations
Composite type hydraulic flow control valve
CN111457111A
High-precision flow control valve for fluid control
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Opening and closing apparatus for hydraulic valve
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