A torque converter hydraulic control valve assembly
Patent Information
- Application Number
- CN202521333077.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-26
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-06-26
AI Technical Summary
[0003]针对现有技术存在的不足，本实用新型的目的在于，提供一种变矩器液压控制阀总成，以解决现有技术中的液力变矩器的液压系统可靠性低的技术问题
[0019](1)本实用新型在主调压阀弹簧的弹力和变矩器出油阀的油压力的共同作用下，提高主压力，闭锁压力油并入油路，所以能够有效提高闭锁电磁阀的闭锁压力，使得闭锁离合器能够可靠工作；将精滤器后置，以确保进入闭锁电磁阀的油液清洁，减小了精滤器的堵塞风险，提高产品的可靠性。
Smart Images
Figure CN224903967U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of torque converter technology, specifically to a torque converter hydraulic control valve assembly. Background Technology
[0002] Heavy-duty vehicles with large tonnage require mechanical transmissions equipped with hydraulic torque converters featuring lock-up functions to improve driving experience and safety. However, the hydraulic torque converter is a hydraulic transmission component, requiring a corresponding hydraulic system. Furthermore, the hydraulic system generates significant heat during operation, necessitating a cooling system. This results in a complex structure, poor reliability, cumbersome troubleshooting, and low efficiency within the vehicle's transmission hydraulic system. Therefore, researching ways to improve the reliability of hydraulic systems is of paramount importance. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a torque converter hydraulic control valve assembly to solve the technical problem of low reliability of hydraulic systems in existing hydraulic torque converters.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] A torque converter hydraulic control valve assembly includes a torque converter inlet valve, a lock-up solenoid valve, a torque converter outlet valve, a main pressure regulating valve, and a torque converter control valve block. The main pressure regulating valve, the torque converter outlet valve, the torque converter inlet valve, and the lock-up solenoid valve are all located on the torque converter control valve block. The torque converter control valve block is also provided with a second oil port and a fourth oil port.
[0006] The inlets of the main pressure regulating valve and the locking solenoid valve are both connected to the oil pump outlet.
[0007] The oil pump outlet is connected to the main pressure regulating valve inlet via the first oil passage, and the main pressure regulating valve outlet is connected to the hydraulic torque converter and the torque converter inlet valve via the second oil passage.
[0008] The inlet of the locking solenoid valve is connected to the outlet of the oil pump via the third oil passage, and the pressure port of the locking solenoid valve is connected to the piston chamber of the locking clutch via the fourth oil passage.
[0009] The second oil passage is the inlet oil passage of the hydraulic torque converter; the torque converter outlet valve is located on the return oil passage of the hydraulic torque converter;
[0010] The torque converter oil outlet valve is connected to the second oil port; the main pressure regulating valve is connected to the fourth oil port; the second oil port is connected to the fourth oil port through the fifth oil passage.
[0011] Specifically, this utility model also has the following technical features:
[0012] Specifically, the main pressure regulating valve includes a main pressure regulating valve core, a piston, and a main pressure regulating valve spring. The torque converter control valve block has a valve hole. The main pressure regulating valve core is disposed in the valve hole. The two axial ends of the main pressure regulating valve core have a first valve core hole and a second valve core hole, respectively. The piston is disposed in the first valve core hole, and the main pressure regulating valve spring is disposed in the second valve core hole.
[0013] Furthermore, a check valve is also provided on the oil return port of the locking solenoid valve.
[0014] Furthermore, a fine filter is also installed on the third oil passage.
[0015] Furthermore, the torque converter oil outlet valve includes a torque converter oil outlet valve core, which, when moved, can communicate with a third oil port provided on the torque converter control valve block.
[0016] Furthermore, the torque converter outlet valve also includes a torque converter outlet valve spring; the torque converter outlet valve spring is sleeved on the torque converter outlet valve core.
[0017] Furthermore, it also includes a main pressure test port on the first oil passage, a torque converter inlet valve pressure test port on the second oil passage, a torque converter outlet valve pressure test port on the second oil port, a lock-up test port on the fourth oil passage, and a fine filter outlet pressure test port on the third oil passage.
[0018] Compared with the prior art, this utility model has the following technical effects:
[0019] (1) Under the combined action of the spring force of the main pressure regulating valve and the oil pressure of the torque converter outlet valve, the main pressure is increased and the locking pressure oil is connected to the oil circuit, so the locking pressure of the locking solenoid valve can be effectively increased, so that the locking clutch can work reliably; the fine filter is placed after the oil to ensure that the oil entering the locking solenoid valve is clean, reducing the risk of clogging of the fine filter and improving the reliability of the product.
[0020] (2) This utility model is equipped with multiple pressure measuring ports, and the oil pressure is highly detectable. In particular, it can detect whether the fine filter is blocked in time by accurately measuring the oil pressure before and after the fine filter, which facilitates the timely maintenance of the fine filter.
[0021] (3) The present invention provides a check valve in the return oil line of the lock-up solenoid valve to ensure that there is a certain return oil pressure when the lock-up clutch is disengaged, thereby eliminating the problem of rapid impact when the piston of the lock-up clutch returns. Attached Figure Description
[0022] Figure 1 This is a cross-sectional view of the present invention;
[0023] Figure 2 This is a hydraulic schematic diagram of the present invention;
[0024] Figure 3 This is a schematic diagram of the oil passage arrangement of this utility model;
[0025] Figure 4 This is a schematic diagram of the pressure measuring port arrangement of this utility model.
[0026] The meanings of the labels in the attached diagram are as follows:
[0027] 1-Torque converter inlet valve, 2-Lock-up solenoid valve, 3-Torque converter outlet valve, 4-Main pressure regulating valve, 5-Lock-up clutch, 6-Second oil port, 7-Fourth oil port, 8-First oil passage, 9-Second oil passage, 10-Hydraulic torque converter, 11-Third oil passage, 12-Fourth oil passage, 13-Fifth oil passage, 14-Check valve, 15-Fine filter, 16-Third oil port, 17-First oil port, 18-Main pressure test port, 19-Torque converter inlet valve pressure test port, 20-Lock-up test port, 21-Torque converter outlet valve pressure test port, 22-Fine filter outlet pressure test port;
[0028] 301 - Oil outlet valve core; 302 - Oil outlet valve spring;
[0029] 401 - Main pressure regulating valve core, 402 - Piston, 403 - Main pressure regulating valve spring.
[0030] The specific content of this utility model will be further explained in detail below with reference to the embodiments. Detailed Implementation
[0031] Unless otherwise specified, all components in this invention are made from components known in the prior art.
[0032] The terms “upper,” “lower,” “front,” “rear,” “top,” and “bottom” used in this utility model are for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. “Inner” and “outer” refer to the inner and outer contours of the corresponding components, and the above terms should not be construed as limitations on this utility model.
[0033] Furthermore, the terms "first," "second," and other ordinal numbers are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of that feature.
[0034] In this invention, unless otherwise stated, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0035] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.
[0036] Example 1:
[0037] Following the above technical solutions, such as Figures 1 to 4 As shown, this utility model provides a torque converter hydraulic control valve assembly, including a torque converter inlet valve 1, a lock-up solenoid valve 2, a torque converter outlet valve 3, a main pressure regulating valve 4, and a torque converter control valve block; the main pressure regulating valve 4, the torque converter outlet valve 3, the torque converter inlet valve 1, and the lock-up solenoid valve 2 are all located on the torque converter control valve block, and the torque converter control valve block is also provided with a second oil port 6 and a fourth oil port 7;
[0038] The inlets of both the main pressure regulating valve 4 and the locking solenoid valve 2 are connected to the oil pump outlet.
[0039] The oil pump outlet is connected to the inlet of the main pressure regulating valve 4 via the first oil passage 8, and the outlet of the main pressure regulating valve 4 is connected to the hydraulic torque converter 10 and the torque converter inlet valve 1 via the second oil passage 9; the first oil passage is the main pressure regulating oil passage.
[0040] The inlet of the locking solenoid valve 2 is connected to the oil pump outlet via the third oil passage 11, and the pressure oil port of the locking solenoid valve 2 is connected to the piston chamber of the locking clutch 5 via the fourth oil passage 12; the third oil passage is the oil outlet passage of the fine filter 8, and the fourth oil passage is the working oil passage of the locking clutch 5.
[0041] The second oil passage 9 is the oil inlet passage of the hydraulic torque converter 10; the torque converter outlet valve 3 is located on the oil return passage of the hydraulic torque converter 10.
[0042] The torque converter outlet valve 3 is connected to the second oil port 6; the main pressure regulating valve 4 is connected to the fourth oil port 7; the second oil port 6 is connected to the fourth oil port 7 through the fifth oil passage 13; the fifth oil passage 13 serves as a feedback oil passage.
[0043] As a preferred embodiment, the main pressure regulating valve 4 includes a main pressure regulating valve core 401, a piston 402, and a main pressure regulating valve spring 403; a valve hole is provided on the torque converter control valve block, the main pressure regulating valve core 401 is disposed in the valve hole, and a first valve core hole and a second valve core hole are respectively provided at both ends of the main pressure regulating valve core 401 along the axial direction. The piston 402 is disposed in the first valve core hole, and the main pressure regulating valve spring 403 is disposed in the second valve core hole.
[0044] When the oil in the oil pump enters the cavity between the piston 402 and the main pressure regulating valve core 401 through the small hole opened on the main pressure regulating valve core 401, oil pressure is generated in the cavity because the piston 402 and the main pressure regulating valve core 401 are connected by a bore and shaft. This pressure pushes the main pressure regulating valve core 401 along... Figure 2 As shown, it moves upward. When the main pressure regulating valve core 401 moves upward to the point where the first oil passage 8 and the second oil passage 9 are connected, the oil pressure in the first oil passage 8 reaches a balance with the sum of the spring force of the main pressure regulating valve spring 403 and the oil pressure of the torque converter outlet valve 3.
[0045] The torque converter inlet valve 1 is used to ensure that the hydraulic torque converter 10 can smoothly receive oil. The torque converter inlet valve 1 is arranged in the valve hole of the hydraulic valve block 13. If an abnormality occurs in the hydraulic system, the oil inlet pressure of the hydraulic torque converter 10 increases until the torque converter inlet valve 1 opens to overflow. The overflowing oil enters the oil pump suction port through the first oil port opened on the torque converter control valve block and the oil passage connected to the first oil port, ensuring that the oil pump can work normally.
[0046] The connection between the third oil passage 11 and the fourth oil passage 12 is controlled by the lock-up solenoid valve 2. The oil flows into the piston chamber of the lock-up clutch 10 through the fourth oil passage 12, controlling the engagement and disengagement of the lock-up clutch 5.
[0047] As a preferred embodiment, a one-way valve 14 is also provided on the oil return port of the lock-up solenoid valve 2. This ensures that when the lock-up clutch 5 is normally disengaged, there is some pressure inside the piston of the lock-up clutch 5.
[0048] As a preferred embodiment, a fine filter 15 is also provided on the third oil passage 11.
[0049] As a preferred embodiment, the torque converter oil outlet valve 3 includes a torque converter oil outlet valve core 301, which can communicate with the third oil port 16 provided on the torque converter control valve block when it moves.
[0050] As a preferred embodiment, the torque converter outlet valve 3 further includes a torque converter outlet valve spring 302; the torque converter outlet valve spring 302 is sleeved on the torque converter outlet valve core 301.
[0051] The torque converter outlet valve 3 is used to ensure that the internal pressure of the hydraulic torque converter 10 is not lower than the set value. That is, when the internal pressure is balanced with the spring force of the torque converter outlet valve spring 302, the torque converter outlet valve core 301 moves and communicates with the third oil port 16 set on the torque converter control valve block, and the oil enters the heat dissipation system to realize the heat dissipation of the hydraulic torque converter 10.
[0052] The torque converter outlet valve 3 is activated by the elastic force of the torque converter outlet valve spring 302. When the outlet pressure of the hydraulic torque converter 10 is less than the set pressure, the torque converter outlet valve core 301 blocks the pipeline under the force of the torque converter outlet valve spring 302. When the outlet pressure of the hydraulic torque converter 14 is greater than the set pressure, the torque converter outlet valve core 301 compresses the torque converter outlet valve spring 302, the pipeline is connected, and the oil flows through the torque converter outlet valve 3.
[0053] As a preferred embodiment, the system further includes a main pressure measuring port 18 located on the first oil passage 8 for easy detection of the main pressure during testing and maintenance; a torque converter inlet valve pressure measuring port 19 located on the second oil passage 9 for easy detection of the torque converter inlet valve 1 pressure during testing and maintenance; a torque converter outlet valve pressure measuring port 21 located on the second oil port 6 for easy detection of the torque converter outlet valve 3 pressure during testing and maintenance; a lock-up measuring port 20 located on the fourth oil passage 12 for detecting the lock-up clutch 5 pressure during testing and maintenance; and a fine filter outlet pressure measuring port 22 located on the third oil passage 11 for detecting the pressure after passing through the fine filter 15.
[0054] The above technical solutions are only preferred embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be conceived by those skilled in the art without creative effort within the technical scope disclosed in this utility model are covered within the protection scope of this utility model.
Claims
1. A torque converter hydraulic control valve assembly, comprising a torque converter inlet valve (1), a lock-up solenoid valve (2), a torque converter outlet valve (3), a main pressure regulating valve (4), and a torque converter control valve block, wherein the main pressure regulating valve (4), the torque converter outlet valve (3), the torque converter inlet valve (1), and the lock-up solenoid valve (2) are all located on the torque converter control valve block, characterized in that, The torque converter control valve block is also provided with a second oil port (6) and a fourth oil port (7); The inlets of the main pressure regulating valve (4) and the locking solenoid valve (2) are both connected to the oil pump outlet. The oil pump outlet is connected to the inlet of the main pressure regulating valve (4) through the first oil passage (8), and the outlet of the main pressure regulating valve (4) is connected to the hydraulic torque converter (10) and the torque converter inlet valve (1) through the second oil passage (9); The inlet of the locking solenoid valve (2) is connected to the oil pump outlet via the third oil passage (11), and the pressure port of the locking solenoid valve (2) is connected to the piston chamber of the locking clutch (5) via the fourth oil passage (12). The second oil passage (9) is the oil inlet passage of the hydraulic torque converter (10); the torque converter outlet valve (3) is located on the oil return passage of the hydraulic torque converter (10); The torque converter oil outlet valve (3) is connected to the second oil port (6); the main pressure regulating valve (4) is connected to the fourth oil port (7); the second oil port (6) is connected to the fourth oil port (7) through the fifth oil passage (13).
2. The torque converter hydraulic control valve assembly as described in claim 1, characterized in that, The main pressure regulating valve (4) includes a main pressure regulating valve core (401), a piston (402), and a main pressure regulating valve spring (403); the torque converter control valve block has a valve hole, the main pressure regulating valve core (401) is disposed in the valve hole, and the two ends of the main pressure regulating valve core (401) have a first valve core hole and a second valve core hole respectively. The piston (402) is disposed in the first valve core hole, and the main pressure regulating valve spring (403) is disposed in the second valve core hole.
3. The torque converter hydraulic control valve assembly as described in claim 1, characterized in that, A check valve (14) is also provided on the oil return port of the locking solenoid valve (2).
4. The torque converter hydraulic control valve assembly as described in claim 1, characterized in that, A fine filter (15) is also provided on the third oil passage (11).
5. The torque converter hydraulic control valve assembly as described in claim 1, characterized in that, The torque converter oil outlet valve (3) includes a torque converter oil outlet valve core (301), which can communicate with the third oil port (16) provided on the torque converter control valve block when it moves.
6. The torque converter hydraulic control valve assembly as described in claim 5, characterized in that, The torque converter outlet valve (3) also includes a torque converter outlet valve spring (302); the torque converter outlet valve spring (302) is sleeved on the torque converter outlet valve core (301).
7. The torque converter hydraulic control valve assembly as described in claim 1, characterized in that, It also includes a main pressure measuring port (18) set on the first oil passage (8), a torque converter inlet valve pressure measuring port (19) set on the second oil passage (9), a torque converter outlet valve pressure measuring port (21) set on the second oil port (6), a lock-up measuring port (20) set on the fourth oil passage (12), and a fine filter outlet pressure measuring port (22) set on the third oil passage.