An OCV valve with a novel push rod structure
By designing a novel push rod structure, the radial force problem caused by the fixed connection between the push rod and the valve core in the OCV valve was solved. This enabled the sliding fit and limit control of the push rod, ensuring smooth movement of the valve core and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 浙江富杰德汽车系统股份有限公司
- Filing Date
- 2025-09-18
- Publication Date
- 2026-07-03
AI Technical Summary
The existing OCV valve has a fixed connection between the push rod and the valve core, which causes radial force due to assembly errors and the clearance between parts, resulting in uneven wear between the valve core and the inner sleeve.
A novel push rod structure is designed, in which the push rod slides into the valve body, the stroke is limited by a limiting shoulder, and it is integrally injection molded to avoid the influence of radial force on the valve core.
This achieves linear displacement of the push rod, avoids radial force on the valve core, ensures smooth valve core movement, and reduces production costs.
Smart Images
Figure CN224452874U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of OCV valve technology, and in particular, to an OCV valve with a novel push rod structure. Background Technology
[0002] The OCV valve, also known as the automotive engine oil pressure control valve, mainly controls the oil control valve of the engine's intake valve to stabilize the vehicle's idling speed and ensure normal fuel consumption.
[0003] Currently, in commercially available OCV valves, the push rod is generally fixedly fitted inside the valve core to allow for synchronous displacement with the valve core. However, due to the length of the push rod, assembly errors and clearances between parts can cause it to exert a radial force on the valve core, leading to uneven wear between the valve core and the inner sleeve. This problem urgently needs to be addressed. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide an OCV valve with a novel push rod structure, which has the characteristics of reasonable structural design.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] An OCV valve with a novel push rod structure includes a valve body, a return spring, a valve core, a push rod, a reversing rod, and an electromagnetic drive device. The upper end of the electromagnetic drive device is fixedly connected to the lower end of the valve body. A first sliding cavity is provided at the upper end of the electromagnetic drive device, and the valve core is slidably disposed within the first sliding cavity. The return spring, the reversing rod, and the push rod are sequentially disposed within the valve body from top to bottom. The reversing rod slides in cooperation with the valve body. The upper end of the return spring abuts against the inner wall of the valve body, and the lower end abuts against the reversing rod. The electromagnetic drive device is used to drive the valve core to move toward the valve body when energized. The push rod slides in cooperation with the valve body, and the upper end of the push rod abuts against the reversing rod, and the lower end abuts against the upper end of the valve core.
[0007] Preferably, the push rod includes an annular slide and a central rod disposed inside the annular slide, the central rod being connected to the annular slide via several connecting ribs; the annular slide is slidably engaged with the valve body; the upper end of the annular slide extends upward to form a top block that abuts against the reversing rod; the lower end of the central rod abuts against the valve core.
[0008] Preferably, the top rod is integrally formed by injection molding.
[0009] Preferably, a second sliding cavity is formed in the middle part of the valve body, and the reversing rod is slidably disposed in the second sliding cavity; a third sliding cavity is formed in the lower part of the valve body, and the annular slide is slidably disposed in the third sliding cavity; the inner diameter of the second sliding cavity is smaller than the inner diameter of the third sliding cavity, and a limiting shoulder is formed at the junction of the two.
[0010] Preferably, the lower end of the reversing rod is provided with a convex ring, and the top block abuts against the convex ring.
[0011] Preferably, the reversing rod, push rod, and valve core are all arranged vertically through each other; the upper end of the valve body is open.
[0012] Preferably, a filter cover is provided at the upper opening of the valve body, and the filter cover has several fine holes.
[0013] Preferably, a bracket is fixedly provided at the upper end of the electromagnetic drive device, and the lower end of the valve body is fixedly sleeved on the bracket.
[0014] The main technical effects of this utility model are reflected in the following aspects:
[0015] By separating the push rod from the valve core and replacing it with a sliding engagement with the valve body, the push rod can be made to move linearly while avoiding the push rod exerting radial force on the valve core.
[0016] The travel of the push rod is limited by the limiting shoulder to prevent excessive displacement of the push rod.
[0017] The reversing rod, push rod, and valve core are all arranged vertically, and the upper end of the valve body is open, which makes the movement of the valve core smoother.
[0018] The top rod is integrally injection molded, resulting in lower costs. Attached Figure Description
[0019] Figure 1 This is an exploded view of the OCV valve in the embodiment;
[0020] Figure 2 This is a cross-sectional view of the OCV valve in the embodiment;
[0021] Figure 3 for Figure 2 Enlarged view of section A in the middle;
[0022] Figure 4 This is a structural diagram of the commutator in the embodiment;
[0023] Figure 5 This is a structural diagram of the push rod in the embodiment.
[0024] Reference numerals: 1. Filter cover; 2. Return spring; 3. Valve body; 31. Oil passage A; 32. Oil passage P; 33. Oil passage B; 34. Spring seat; 35. Second sliding chamber; 36. Limiting shoulder; 37. Third sliding chamber; 4. Reversing rod; 41. Rod body; 42. Upper sliding ring; 43. Lower sliding ring; 44. Convex ring; 5. Top rod; 51. Annular slide seat; 52. Center rod; 53. Connecting rib; 54. Top block; 6. Bracket; 7. O-ring; 8. Valve core; 9. Electromagnetic drive device; 91. First sliding chamber. Detailed Implementation
[0025] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.
[0026] Reference Figure 1-2 This embodiment aims to provide an OCV valve with a novel push rod structure, including a valve body 3, a return spring 2, a valve core 8, a push rod 5, a reversing rod 4, and an electromagnetic drive device 9.
[0027] The reset spring 2, the reversing rod 4, and the push rod 5 are arranged sequentially from top to bottom inside the valve body 3.
[0028] The surface of the valve body 3 is provided with oil passages A 31, P 32 and B 33 at intervals from top to bottom. The upper end of the valve body 3 is open, and a filter cover 1 is provided at the opening, which has several fine holes. The upper end of the return spring 2 abuts against the spring seat 34 formed on the inner wall of the valve body 3, and the lower end abuts against the reversing rod 4.
[0029] A bracket 6 is fixedly mounted on the upper end of the electromagnetic drive device 9, and the valve body 3 is fixedly sleeved on the bracket 6. Specifically, the valve body 3 can be pressed into the bracket 6 by a riveting process. An O-ring 7 is provided between the lower end of the valve body 3 and the upper end of the electromagnetic drive device 9 to increase the sealing performance.
[0030] The upper end of the electromagnetic drive device 9 is provided with a first sliding cavity 91, and the valve core 8 is slidably disposed in the first sliding cavity 91.
[0031] The valve body 3 has a second sliding cavity 35 formed in the middle of its interior, and the reversing rod 4 is slidably disposed in the second sliding cavity 35. The reversing rod 4 includes a rod body 41, and an upper sliding ring 42 and a lower sliding ring 43 are integrally formed at the upper and lower ends of the rod body 41, respectively. The outer diameter of the upper sliding ring 42 and the lower sliding ring 43 is larger than the outer diameter of the rod body 41. One end of the return spring 2 extends into the upper sliding ring 42 and abuts against the upper end of the rod body 51.
[0032] Thus, an oil passage cavity is formed between the lower end face of the upper slip ring 42, the upper end face of the lower slip ring 43, the outer wall of the rod 41, and the inner wall of the valve body 3. When the reversing rod 4 moves up and down, it can change the connection between oil passage A 31, oil passage P 32, and oil passage B 33, thereby controlling the direction of the oil circuit. This is existing technology and will not be described in detail in this embodiment.
[0033] The push rod 5 is integrally molded by injection molding and includes an annular slide 51 and a central rod 52 disposed inside the annular slide 51. The central rod 52 is connected to the annular slide 51 by several connecting ribs 53. The annular slide 51 slides and engages with the valve body 3. The upper end of the annular slide 51 extends upward to form a top block 54 that abuts against the reversing rod 4. The lower end of the central rod 52 abuts against the valve core 8.
[0034] The lower part of the valve body 3 forms a third sliding cavity 37, and the annular slide seat 51 is slidably disposed within the third sliding cavity 37. The inner diameter of the second sliding cavity 35 is smaller than the inner diameter of the third sliding cavity 37, and a limiting shoulder 36 is formed at the junction of the two. The limiting shoulder 36 is used to limit the upward movement of the annular slide seat 51, thereby achieving the purpose of limiting the stroke of the valve core 8.
[0035] The lower end of the sliding ring 43 is provided with a protruding ring 44, and the top block 54 abuts against the protruding ring 44. By providing the protruding ring 44, the edge of the sliding ring 43 can be prevented from being damaged during placement.
[0036] When the electromagnetic drive device 9 is powered on, it can drive the valve core 8 to move upward, that is, move towards the valve body 3, thereby driving the reversing rod 4 to move upward; when the electromagnetic drive device 9 is de-energized, the reset spring 2 pushes the reversing rod 4 downward, thereby driving the valve core 8 to move downward and reset.
[0037] The reversing rod 4, push rod 5 and valve core 8 are all arranged vertically; in this way, external engine oil can smoothly enter and exit the first sliding chamber 91, avoiding back pressure, and allowing the valve core 8 to slide smoothly up and down.
[0038] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.
Claims
1. An OCV valve with a novel push rod structure, comprising a valve body (3), a return spring (2), a valve core (8), a push rod (5), a reversing rod (4), and an electromagnetic drive device (9); the upper end of the electromagnetic drive device (9) is fixedly connected to the lower end of the valve body (3); the upper end of the electromagnetic drive device (9) is provided with a first sliding cavity (91), and the valve core (8) is slidably disposed in the first sliding cavity (91); the return spring (2), the reversing rod (4), and the push rod (5) are arranged sequentially from top to bottom in the valve body (3); the reversing rod (4) is slidably engaged with the valve body (3); the upper end of the return spring (2) abuts against the inner wall of the valve body (3), and the lower end abuts against the reversing rod (4); the electromagnetic drive device (9) is used to drive the valve core (8) to move toward the valve body (3) when energized; characterized in that, The push rod (5) slides with the valve body (3), with the upper end of the push rod (5) abutting against the reversing rod (4) and the lower end abutting against the upper end of the valve core (8).
2. The OCV valve with a novel push-rod structure according to claim 1, characterized in that, The top rod (5) includes an annular slide (51) and a central rod (52) disposed inside the annular slide (51). The central rod (52) is connected to the annular slide (51) by a number of connecting ribs (53). The annular slide (51) slides and engages with the valve body (3). The upper end of the annular slide (51) extends upward to form a top block (54) that abuts against the reversing rod (4). The lower end of the central rod (52) abuts against the valve core (8).
3. An OCV valve with a novel push-rod structure according to claim 1 or 2, characterized in that, The top rod (5) is integrally formed by injection molding.
4. An OCV valve with a novel push-rod structure according to claim 2, characterized in that, The valve body (3) has a second sliding cavity (35) formed in the middle part of its interior, and the reversing rod (4) is slidably disposed in the second sliding cavity (35); the valve body (3) has a third sliding cavity (37) formed in the lower part of its interior, and the annular slide (51) is slidably disposed in the third sliding cavity (37); the inner diameter of the second sliding cavity (35) is smaller than the inner diameter of the third sliding cavity (37), and a limiting shoulder (36) is formed at the junction of the two.
5. An OCV valve with a novel push-rod structure according to claim 2, characterized in that, The lower end of the reversing rod (4) is provided with a convex ring (44), and the top block (54) abuts against the convex ring (44).
6. An OCV valve with a novel push-rod structure according to claim 1 or 2, characterized in that, The reversing rod (4), the push rod (5), and the valve core (8) are all arranged vertically; the upper end of the valve body (3) is open.
7. An OCV valve with a novel push-rod structure according to claim 6, characterized in that, A filter cover (1) is provided at the upper opening of the valve body (3), and the filter cover (1) has several fine holes.
8. An OCV valve with a novel push-rod structure according to claim 1, characterized in that, The upper end of the electromagnetic drive device (9) is fixedly provided with a bracket (6), and the lower end of the valve body (3) is fixedly sleeved on the bracket (6).