• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Valve structure that allows controlled refrigerant flow. The invention relates to a thermostat assembly (10) that provides controlled progressiveness in the opening of the radiator window. Specifically, the present invention relates to a valve structure (15) having a corrugated valve element that allows a controlled flow of coolant between the radiator and the interior space (10.1) of the thermostat.
    公开号:ES2895203A2
    申请号:ES202190066
    申请日:2020-05-21
    公开日:2022-02-17
    发明作者:Faruk Unluaslan
    申请人:Kirpart Otomotiv Parcalari Sanayi Ve Ticaret A S；
    IPC主号:
    专利说明:

    [0002] Valve structure allowing controlled refrigerant flow
    [0004] technical field
    [0006] The invention relates to a thermostat assembly that provides controlled progressiveness in the opening of the radiator window.
    [0008] Specifically, the present invention relates to a valve structure having a corrugated valve member that allows controlled coolant flow between the radiator and the interior space of the thermostat.
    [0010] prior art
    [0012] The thermostat assembly within the cooling system of an engine provides proper cooling of the engine and its parts by determining the flow ratio between the bypass circuit and the heat exchange circuit according to the actual temperature value of the engine coolant. . The change in the flow ratio between the bypass circuit and the heat exchange circuit is possible with the change in the opening ratio between the inlet window of the bypass and the inlet window of the radiator or the outlet window of the radiator. the bypass and the outlet window of the radiator. The change in the opening ratio is provided by the forward and backward movement of the valve structure, guided by means of an actuator through the internal space of the thermostat.
    [0013] When the temperature value of the coolant coming from the engine outlet is below a first threshold value, the coolant continues to flow from the inlet to the outlet of the bypass through the bypass circuits comprising the channels of the engine, the water pump and thermostat assembly. At these temperature values below the first threshold value, the actuator is still in the fully closed position, consequently the valve structure is also fully closed. In this fully closed position of the actuator, the valve structure allows the flow of coolant from the inlet to the outlet of the bypass and prevents the flow of coolant from the inlet to the outlet of the radiator by closing the upper valve seat through of the upper element of the valve.
    [0015] When the piston starts to move forward as a result of the coolant temperature rise (exceeding the first threshold value), another part of the actuator (actuator body) starts to move backwards due to the piston seat restricting forward movement from the piston end. The rearward movement of the actuator body also causes the valve assembly to move rearwardly by virtue of the force applied to the sleeve seat of the valve assembly by the sleeve portion of the actuator. During the backward movement of the valve structure, the spring element is compressed. So the spring stores potential energy. In this partially open position of the actuator, the valve structure allows coolant from both the bypass inlet and the radiator inlet to flow to the outlet.
    [0016] When the temperature value of the coolant from the engine outlet is equal to or greater than a second threshold value, the opening of the actuator reaches its maximum point (full backward movement), consequently, the opening of the valve structure also reaches its maximum point. In this fully open position of the actuator, the valve structure allows coolant from the radiator inlet to flow to the outlet and prevents the flow of coolant from the inlet to the bypass outlet by closing the lower valve seat to through the bottom element of the valve. At these temperature values above the second threshold, the coolant coming from the engine outlet continues to flow from the inlet to the radiator outlet along the heat exchange circuit comprising the engine channels, the radiator channels, water pump and thermostat assembly.
    [0018] In conventional thermostat assemblies, during the transition from the fully closed position to the partially open position or from the partially open position to the fully open position, there are no variables except the actuator stroke value to determine the amount of refrigerant to be released. flows from the radiator channel to the interior space of the thermostat. This means that the amount of coolant that flows from the inlet to the outlet of the radiator along the interior space of the thermostat depends only on the size of the opening (gap) between the upper valve seat and the upper valve element. The opening is determined only by the travel value provided by the actuator. However, since the opening amount is generally more than the required opening, the cooling is more than the required cooling. Therefore, it is not possible to reach the desired cooldown goal in one go. The valve structure should reposition back and forth until the desired cooling goal is reached.
    [0020] EP2246599A1 mentions a control valve for a fluid flow circuit. There is a lateral opening that allows to control the progression of the fluid flow. However, a valve structure having a corrugated wall structure on the upper surface of its upper valve member is not mentioned here.
    [0021] As a result, there is a need for a thermostat assembly that allows the cooling goal to be achieved. all at once by providing a controlled coolant flow from the radiator inlet to the radiator outlet.
    [0022] Objectives and brief description of the invention
    [0023] The object of the present invention is to present a thermostat assembly that allows the desired cooling goal to be achieved in one go by providing a controlled flow of coolant from the inlet to the outlet of the radiator. The other object of the present invention is to present a valve structure that allows a controlled flow of coolant from the inlet to the outlet of the radiator by restricting the opening between the upper valve seat and the upper valve element through its corrugated wall structure.
    [0024] This thermostat assembly comprises
    [0025] - an upper frame including an upper valve seat,
    [0026] - a valve structure including an upper valve element,
    [0027] - a corrugated wall structure formed on the upper surface of said upper valve element. The aforementioned corrugated wall structure has at least one crest and one related trough.
    [0028] In the preferred embodiment of the invention, the aforementioned corrugated wall structure could have more than one crest and related trough.
    [0029] The lowest point of each valley could be designed as different from each other according to the cooling requirements of the cooling system.
    [0030] The highest point of each ridge could be designed as different from each other according to the cooling requirements of the cooling system.
    [0031] The dimensions of each ridge and valley could be designed independently of each other according to the cooling requirements of the cooling system.
    [0032] In the other preferred embodiments of the present invention, the mentioned upper valve seat has a corrugated shape.
    [0033] Description of the figures
    [0034] In Figure 1, a perspective view of the present valve structure is provided.
    [0035] In figure 2a, a top view of the mentioned valve structure is shown.
    [0036] In Figure 2b, a cross-sectional view of said valve structure is shown.
    [0037] In Figure 2c, a perspective view of another embodiment of the present valve structure is provided. In figure 2d, a cross-sectional view of the mentioned embodiment of the present valve structure is provided.
    [0038] In Figure 3, a cross-sectional view of the present thermostat assembly in the fully closed position is provided.
    [0039] In Figure 4, a cross-sectional view of the aforementioned thermostat assembly is provided in a partially open position.
    [0040] In Figure 5, a cross-sectional view of said thermostat assembly in the fully open position is provided.
    [0041] In Figure 6, an exploded perspective view of the present thermostat assembly is shown.
    [0042] In Figure 7a, a perspective view of the conventional valve structure is provided.
    [0043] In Figure 7b, a cross-sectional view of the conventional valve structure is provided.
    [0044] In Figure 8, a cross-sectional view of the conventional thermostat assembly in the fully closed position is provided.
    [0045] In Figure 9, a cross-sectional view of the aforementioned conventional thermostat assembly is provided. in partially open position.
    [0047] In Figure 10, a cross-sectional view of such a conventional thermostat assembly in the fully open position is provided.
    [0049] In Figure 11a, a close-up cross-sectional view of the present thermostat assembly in the fully closed position is provided. (11.2 upper valve seat)
    [0051] In Figure 11b, a close-up cross-sectional view of the conventional thermostat assembly in the fully closed position is provided.
    [0053] In Figure 12a, a close-up cross-sectional view of the present mentioned thermostat assembly is provided in the partially open position where the actuator has a stroke value of 1mm.
    [0055] In Figure 12b, a close-up cross-sectional view of the aforementioned conventional thermostat assembly is provided in the partially open position where the actuator has a stroke value of 1mm.
    [0057] In Figure 13a, a close-up cross-sectional view of said present thermostat assembly is provided in the partially open position where the actuator has a stroke value of 2mm.
    [0059] In Figure 13b, a close-up cross-sectional view of such a conventional thermostat assembly is provided in the partially open position where the actuator has a stroke value of 2mm.
    [0061] In Figure 14a, a close-up cross-sectional view of the present thermostat assembly is provided in the partially open position where the actuator has a travel value of 3mm.
    [0063] In Figure 14b, a close-up cross-sectional view of the conventional thermostat assembly is provided in the partially open position where the actuator has a travel value of 3mm.
    [0065] In Figure 15a, a close-up cross-sectional view of the present thermostat assembly is provided in the fully open position where the actuator has a travel value of 4mm.
    [0067] In Figure 15b, a close up cross-sectional view of the conventional thermostat assembly is provided in the fully open position where the actuator has a 4mm stroke value.
    [0069] In Figure 16a, the progressivity graph of the present thermostat assembly is provided.
    [0071] In Figure 16b, the progressiveness graph of the conventional thermostat assembly is provided.
    [0073] reference numbers
    [0075] 10. Thermostat assembly
    [0076] 10.1. Inside space of thermostat
    [0077] 11. Upper frame
    [0078] 11.1. piston seat
    [0079] 11.2. upper valve seat
    [0080] 12. Lower frame
    [0081] 12.1. lower valve seat
    [0082] 14. First spring element
    [0083] 15. Valve structure
    [0084] 15.1. valve upper element
    [0085] 15.2. corrugated wall structure
    [0086] 15.3. Lower valve element
    [0087] 15.4. sealing groove
    [0088] 15.5. sleeve seat
    [0089] 16. Sealing element
    [0090] 17. Guide element
    [0091] 18. Second spring element
    [0092] 30. Actuator
    [0093] 30.1. Sleeve
    [0094] 30.2. Piston
    [0095] A. Progressive Line of Present Thermostat Assembly
    [0096] B. Conventional Thermostat Assembly Progressive Line
    [0097] C. Crest
    [0098] T.Valley
    [0099] Detailed description of the invention
    [0101] This invention relates to a thermostat assembly (10) that provides controlled coolant flow between the radiator inlet and the interior space (10.1) of the thermostat through a valve structure (15) having a corrugated valve element which restricts the amount of refrigerant flow for it.
    [0103] In conventional thermostat assemblies, during the transition from the fully closed valve position to the partially open position or from the partially open position to the fully open position, the amount of refrigerant flowing from the opening between the valve seat and the valve element cannot be controlled by the other variant, except the actuator stroke value. Since the opening amount versus unit stroke value is greater than the required amount, this causes a sudden drop in the engine coolant temperature value. The valve then moves forward to decrease the amount of coolant from the radiator inlet and consequently to increase the amount of coolant from the bypass inlet. However, this time, the closing amount versus unit stroke value is greater than the required amount, so this causes a sudden increase in the engine coolant temperature value. The valve then moves rearward to increase the amount of coolant from the radiator inlet and consequently to decrease the amount of coolant from the bypass inlet. However, this time, the opening amount versus unit stroke value is again greater than the required amount, so this causes a sudden drop in the engine coolant temperature value. These back and forth movements of the valve body continue until the desired cooling goal is reached. Since the amount of opening or closing versus unit stroke of the actuator is greater than required, it takes time to reach the desired cooling goal. In this case, it is not possible to reach the goal all at once. Following is the table showing the clearance and opening values against each stroke for the conventional valve structure. In this case, the clearance is the perpendicular distance between the upper valve element and the upper valve seat.
    [0108] The present invention allows the desired cooling goal to be achieved at once without unnecessary back and forth movement of the valve structure (15). This is possible because the valve structure (15) has an upper valve element (15.1) with a corrugated wall structure (15.2).
    [0110] As shown in Figure 6, the present thermostat assembly (10) comprises
    [0112] - an upper frame (11) including an upper valve seat (11.2) located on its lower surface and a piston seat (11.1) formed inside coinciding with the center of the mentioned upper valve seat (11.2),
    [0113] - an actuator (30) including a sleeve (30.1) and a piston (30.2),
    [0114] - a valve structure (15) including an upper valve element (15.1) with a corrugated wall structure (15.2) and a lower valve element (15.3) with a sealing groove (15.4),
    [0115] - a first spring element (14) which is located between the mentioned upper valve element (15.1) and the lower valve element (15.3),
    [0116] - a sealing element (16) which is located inside the mentioned sealing groove (15.4) in the lower valve element (15.3),
    [0117] - a lower frame (12),
    [0118] - a guide element (17) which is located between the lower valve element (15.3) and the mentioned lower frame (12),
    [0119] - a second spring element (18) which is located between said guide element (17) and said lower frame (12).
    [0121] The present thermostat assembly (10) provides a controlled coolant flow between the inlet and outlet of the radiator, against the unit stroke value of the actuator (30) thanks to the corrugated wall structure (15.2) formed on the upper surface of the thermostat. upper valve element (15.1). The corrugated wall structure (15.2) could have one or more crests (C) and troughs (T) according to the cooling control requirement of the cooling system. In another embodiment of the invention, the upper frame (11) has a corrugated wall shape instead of the corrugated wall structure (15.2) of the upper valve element (15.1). The wavy wall shape could have one or more crests and troughs according to the cooling control requirement of the cooling system. And also, the geometries and dimensions of each related crest (C) and trough (T) may vary according to the requirements. In figure 1 a perspective view of the valve structure (15) is provided having an upper valve element (15.1) with a corrugated wall structure (15.2). As seen in Fig. 1, in this embodiment of the invention, the lowest level of each valley (T) is different from each other. Therefore, the amount of opening corresponding to the unit stroke value could be changed according to the cooling requirement by designing the valleys (T) at different levels and dimensions. During the transition from the fully closed position to the partially open position, the coolant inside the radiator channel firstly flows along the valley (T) which is located at the lowest level. Then, with the backward advancement of the valve structure (15), the refrigerant continues to flow respectively along the other valleys (T) according to their levels. Therefore, unlike conventional valve structures, the present valve structure (15) provides a controlled flow of coolant within the radiator channel to the interior space (10.1) of the thermostat. Thanks to the controlled coolant flow, there is no sudden drop or rise in the temperature of the engine coolant circulating along the engine channel. Therefore, it is possible to achieve the desired cooling goal at once without any unnecessary back and forth movement of the valve structure (15). The table below is provided showing the clearance and opening values against each stroke for the present valve structure (15). In this case, the clearance is the perpendicular distance between the upper valve element (15.1) and the upper valve seat (11.2).
    [0126] Furthermore, all of the above properties provided in accordance with the two inlet-one outlet thermostat assembly 10 may also be applicable for the one inlet-two outlet thermostat assembly 10.
    [0128] A top view of the present valve structure (15) is provided in Figure 2a showing the corrugated wall structure (15.2) mentioned. A cross-sectional view of the present valve structure (15) is provided in Figure 2b. From this figure, it is possible to see that the levels of two consecutive troughs (T) (or of each one) are different from each other, while the level of each crest (C) is equal to each other. This provides controlled coolant flow at changing ratios according to the design of the valve structure (15) against each advance in the stroke value of the actuator (30).
    [0130] Perspective and cross-sectional views of another preferred embodiment of the present valve structure (15) are provided in Figures 2c and 2d, respectively. In this case, the level of each peak (C) is different from each other, while the level of each valley (T) is equal to each other.
    [0132] A cross-sectional view of the present thermostat assembly (10) in the fully closed position is provided in Figure 3. As seen in this figure, since the upper valve seat (11.2) is closed by the upper valve element (15.1), in this fully closed thermostat position, the coolant inside the radiator channel cannot flow into the space. inside (10.1) of the thermostat. In this case, the coolant flows only along the bypass circuit.
    [0134] A cross-sectional view of the present thermostat assembly (10) in the partially open position is provided in Figure 4. As a result of the backward movement of the valve structure (15), the upper valve element (15.1) also moves backwards. As seen in this figure, there is only an opening between the valley part (T) of the upper valve element (15.1) and the upper valve seat (11.2). The crest part (C) of the upper valve element (15.1) continues in contact with the upper valve seat (11.2). Therefore, in this position of the present thermostat assembly (10), the coolant inside the radiator channel flows between the upper valve seat (11.2) and the valleys (T) that are not in contact with the upper valve seat. (11.2). By designing the level of each valley (T) as different from each other, it is possible to control the amount of refrigerant flow corresponding to the unit stroke value of the actuator (30).
    [0136] A cross-sectional view of the present thermostat assembly (10) in the fully open position is provided in Figure 5 . As seen in this figure, since the lower valve seat (12.1) is closed by the lower valve element (15.3), in this fully open position of the thermostat, the coolant inside the bypass channel cannot flow to the inner space (10.1) of the thermostat. In this case, the coolant flows only along the heat exchange circuit.
    [0138] An exploded perspective view of the present thermostat assembly (10) is provided in Figure 6 . In this case, it is possible to easily see the corrugated wall structure (15.2) of the upper valve element (15.1).
    [0140] Perspective and cross-sectional views of the conventional valve structure are provided in Figures 7a and 7b, respectively.
    [0142] A cross-sectional view of the conventional thermostat assembly in the position completely closed. A cross-sectional view of the conventional thermostat assembly in the partially open position is provided in Figure 9. As seen in this figure, since there is no corrugated structure in the upper valve member, in this case, the opening between the upper valve seat and the upper valve member is the same everywhere. Therefore, it is not possible to control the amount of refrigerant flow corresponding to the unit stroke value of the actuator (30). A cross-sectional view of the conventional thermostat assembly in the fully open position is provided in Figure 10.
    [0144] Close-up cross-sectional views of the present and conventional thermostat assemblies in the fully closed position are provided in Figures 11a and 11b respectively.
    [0146] Close-up cross-sectional views of the present and conventional thermostat assemblies in the partially open position where the heating element has a stroke value of 1mm are provided in Figures 12a and 12b respectively.
    [0148] Close-up cross-sectional views of the present and conventional thermostat assemblies in the partially open position where the heating element has a stroke value of 2mm are provided in Figures 13a and 13b respectively.
    [0150] Close-up cross-sectional views of the present and conventional thermostat assemblies in the partially open position where the heating element has a stroke value of 3mm are provided in Figures 14a and 14b respectively.
    [0152] Close-up cross-sectional views of the present and conventional thermostat assemblies in the fully open position where the heating element has a stroke value of 4mm are provided in Figures 15a and 15b respectively.
    [0154] The progressivity line (A) of the present thermostat assembly and the progressivity line (B) of the conventional thermostat assembly are respectively shown in the graphs provided in Fig. 16a and 16b.
    权利要求:
    Claims (6)
    [1]
    1. A thermostat assembly (10), comprising
    - an upper frame (11) including an upper valve seat (11.2),
    - a valve structure (15) including an upper valve element (15.1),
    characterized in that said upper valve element (15.1) has a corrugated wall structure (15.2) formed on its upper surface.
    [2]
    2. A thermostat assembly (10) according to claim 1, wherein said corrugated wall structure (15.2) has at least one crest (C) and a related trough (T).
    [3]
    3. A thermostat assembly (10) according to the preceding claims, wherein the lowest point of each valley (T) could be designed to be different from each other according to the cooling requirements of the cooling system.
    [4]
    4. A thermostat assembly (10) according to the preceding claims, wherein the highest point of each crest (C) could be designed to be different from each other according to the cooling requirements of the cooling system.
    [5]
    5. A thermostat assembly (10) according to the preceding claims, wherein the dimensions of each peak (C) and valley (T) can be designed independently of each other according to the cooling requirements of the cooling system .
    [6]
    6. A thermostat assembly (10) according to claims 2 to 5, wherein, in the other preferred embodiments of the present invention, said upper valve seat (11.2) has a corrugated shape.
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    同族专利:
    公开号 | 公开日
    GB202115544D0|2021-12-15|
    GB2597024A|2022-01-12|
    TR201909912A1|2021-01-21|
    WO2021002819A1|2021-01-07|
    ES2895203R1|2022-02-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1989622U|1966-03-08|1968-07-18|Gustav Wahler Metallwarenfabri|VALVE DISC FOR THERMOSTATIC COOLING WATER CONTROL VALVES.|
    WO1997011262A1|1995-09-19|1997-03-27|Standard-Thomson Corporation|Thermostat having a movable weir valve|
    FR2833676A1|2001-12-17|2003-06-20|Mark Iv Systemes Moteurs Sa|Regulator with valve, e.g. for cooling circuit thermostat, has projecting structure round aperture in hollow housing and/or valve body|
    DE202010017643U1|2010-08-17|2012-04-18|Gustav Wahler Gmbh U. Co. Kg|thermostatic valve|
    KR20130113824A|2012-04-06|2013-10-16|현대자동차주식회사|Thermostat|
    TR201813363A1|2018-09-18|2020-09-07|
    法律状态:
    2022-02-17| BA2A| Patent application published|Ref document number: 2895203 Country of ref document: ES Kind code of ref document: A2 Effective date: 20220217 |
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    优先权:
    申请号 | 申请日 | 专利标题
    TR2019/09912A|TR201909912A1|2019-07-03|2019-07-03|VALVE STRUCTURE THAT ALLOWS CONTROLLED REFRIGERANT FLOW|
    PCT/TR2020/050438|WO2021002819A1|2019-07-03|2020-05-21|Valve structure allowing controlled coolant flow|
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