General stator for air intake and exhaust of engine
By designing a universal stator for engine intake and exhaust, and using a single cam to control the hysteresis effect of intake and exhaust and sealing valve discs, the complex structure and high cost of the engine multi-air valve are solved, achieving more efficient exhaust gas discharge and service life improvement.
Patent Information
- Application Number
- CN202421055557.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-15
AI Technical Summary
The dense arrangement of multiple air valves of the engine requires multiple sets of cams for control, resulting in complex structures and high production costs.
A universal stator for intake and exhaust gas inlet is designed. By providing an intake valve body, exhaust valve body and connecting rod, the intake and exhaust structure is simplified, so that a single cam can control the intake and exhaust gas, and pass through the first boss and the second The boss and the adjustment groove control the opening and closing of the sealed valve disc, the intake valve body and the exhaust valve body, so as to achieve a brief connection between the intake chamber and the exhaust chamber to discharge exhaust gas.
A single cam control intake and exhaust gas is realized, reducing production costs, and ensuring complete exhaust gas discharge through hysteresis effect and sealed valve disc design, improving service life.
Smart Images
Figure CN222350794U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of engines, and particularly relates to a universal stator for engine intake and exhaust. Background Art
[0002] The engine is a device with complex structure and many accessories, and a large number of its accessories are mainly concentrated on the cylinder head of the engine. Most four-stroke engines use four valves, two for intake and two for exhaust. However, the multiple valves of the engine are densely arranged and require multiple sets of cams for control, which leads to a complex structure and high production cost. In order to solve the above problems, a universal stator for engine intake and exhaust is proposed. Utility Model Content
[0003] The purpose of the utility model is to provide a universal stator for engine intake and exhaust, so as to solve the problem that multiple valves of the engine are densely arranged and need multiple groups of cams for control, which leads to complex structure and high production cost. In order to solve the above problems, a universal stator for engine intake and exhaust is proposed.
[0004] In order to solve the above technical problems, the utility model is realized by the following technical solutions:
[0005] The utility model is a universal stator for engine intake and exhaust, comprising a stator body, wherein two opposite side surfaces of the stator body are respectively provided with an intake cavity and an exhaust cavity, a first fixing block is fixedly installed on the bottom surface of the intake cavity, a second mounting groove is provided on one side surface of the first fixing block, a first fixing rod is installed in the second mounting groove, a second spring is installed on the peripheral side surface of the first fixing rod, an intake through hole is provided on one side surface of the intake cavity, the first fixing rod penetrates the first fixing block and the intake through hole, and an intake valve body is fixedly installed on one end of the first fixing rod, a connecting rod is fixedly installed on one surface of the intake valve body, and an exhaust valve body is fixedly installed on the other end of the connecting rod.
[0006] Among them, a valve cavity is opened in the stator body, a first installation groove is opened on the upper surface of the valve cavity, a reset rod is installed in the first installation groove, a first spring is installed on the peripheral side of the reset rod, the reset rod passes through the lower end of the stator body and is fixedly connected with an adjusting rod, an adjusting groove is opened on one side of the adjusting rod, and a first boss and a second boss are fixedly installed in sequence on the lower surface of the connecting rod.
[0007] Wherein, the connecting rod is installed through the adjusting groove and is slidably matched with the adjusting groove.
[0008] Among them, a second fixed block is fixedly installed on the bottom surface of the exhaust cavity, a round hole is provided in the second fixed block, a second fixed rod is slidably installed in the round hole, an exhaust through hole is opened on one side of the exhaust cavity, and the second fixed rod passes through the exhaust through hole and is fixedly connected to the exhaust valve body.
[0009] Among them, an air intake sealing ring is fixedly installed in the air intake through hole, and the air intake sealing ring can be tightly clamped and matched with the air intake valve body.
[0010] Wherein, an exhaust sealing ring is fixedly installed in the exhaust through hole, and the exhaust sealing ring can be tightly clamped and matched with the exhaust valve body.
[0011] A sealing plate is clamped at the bottom end of the valve cavity, and an air inlet and air outlet hole is opened on the upper surface of the sealing plate. A sealing valve disc is fixedly installed on the bottom surface of the regulating rod, and the air inlet and air outlet hole can contact and fit tightly with the sealing valve disc.
[0012] Wherein, a sealing cover is mounted on the top of the first installation groove.
[0013] Wherein, a pressure cover is fixedly mounted on one end of the first fixing rod, and a cam is slidably fitted on one side of the pressure cover.
[0014] The utility model has the following beneficial effects:
[0015] 1. The utility model simplifies the intake and exhaust structure by providing an intake valve body, an exhaust valve body and a connecting rod, so that a single cam can control the intake and exhaust, thereby reducing the production cost of the product and having strong practicality.
[0016] 2. The utility model can control the opening and closing of the sealing valve disc, the intake valve body and the exhaust valve body by arranging the first boss, the second boss and the adjustment groove. When the sealing valve disc is closed, the opening and closing of the intake valve body and the exhaust valve body have a hysteresis effect. The intake cavity and the exhaust cavity are directly connected for a short time, which can completely discharge the exhaust gas and make the next intake more sufficient. At the same time, it can cool the valve cavity and increase the service life. It is highly practical.
[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0020] Figure 2 It is a schematic diagram of the top view structure of the utility model;
[0021] Figure 3 for Figure 2 AA cross-sectional structural diagram;
[0022] Figure 4 for Figure 3 A schematic diagram of the partially enlarged structure at B in the middle;
[0023] Figure 5 for Figure 3 Schematic diagram of the partial enlarged structure at point C in the middle.
[0024] In the accompanying drawings, the list of components represented by each reference numeral is as follows: 1. stator body; 2. air inlet chamber; 3. cam; 4. pressure cover; 5. first fixed block; 6. sealing cover; 7. valve chamber; 8. first mounting groove; 9. reset rod; 10. first spring; 11. exhaust chamber; 12. second fixed rod; 13. second fixed block; 14. air inlet and exhaust holes; 15. adjusting rod; 16. sealing valve disc; 17. sealing plate; 18. second mounting groove; 19. first fixed rod; 20. second spring; 21. air inlet through hole; 22. air inlet sealing ring; 23. air inlet valve body; 24. adjusting groove; 25. first boss; 26. second boss; 27. exhaust valve body; 28. exhaust through hole; 29. exhaust sealing ring; 30. connecting rod. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] See also Figure 1-Figure 5 As shown, the utility model is a universal stator for engine intake and exhaust, comprising a stator body 1, wherein two opposite side surfaces of the stator body 1 are respectively provided with an intake cavity 2 and an exhaust cavity 11, a first fixing block 5 is fixedly installed on the bottom surface of the intake cavity 2, a second mounting groove 18 is provided on one side surface of the first fixing block 5, a first fixing rod 19 is installed in the second mounting groove 18, a second spring 20 is installed on the peripheral side surface of the first fixing rod 19, an intake through hole 21 is provided on one side surface of the intake cavity 2, the first fixing rod 19 passes through the first fixing block 5 and the intake through hole 21, and an intake valve body 23 is fixedly installed on one end of the first fixing rod 19, a connecting rod 30 is fixedly installed on one surface of the intake valve body 23, and an exhaust valve body 27 is fixedly installed on the other end of the connecting rod 30, by arranging the intake valve body 23, the exhaust valve body 27 and the connecting rod 30, the intake and exhaust structure is simplified, the single cam 3 can control the intake and exhaust, the production cost of the product is reduced, and the practicability is strong.
[0027] Among them, a valve cavity 7 is opened in the stator body 1, and a first mounting groove 8 is opened on the upper surface of the valve cavity 7. A reset rod 9 is installed in the first mounting groove 8, and a first spring 10 is installed on the peripheral side of the reset rod 9. The reset rod 9 passes through the lower end of the stator body 1 and is fixedly connected with an adjusting rod 15. An adjusting groove 24 is opened on one side of the adjusting rod 15. A first boss 25 and a second boss 26 are fixedly installed in sequence on the lower surface of the connecting rod 30. By setting the first boss 25, the second boss 26 and the adjusting groove 24, the opening and closing of the sealing valve disc 16, the intake valve body 23 and the exhaust valve body 27 can be controlled. When the sealing valve disc 16 is closed, the opening and closing of the intake valve body 23 and the exhaust valve body 27 have a hysteresis effect. The intake cavity 2 and the exhaust cavity 11 are directly connected for a short time, which can completely discharge the exhaust gas and make the next intake more sufficient. At the same time, the valve cavity 7 can be cooled to improve the service life, and the practicability is strong.
[0028] The connecting rod 30 is installed through the adjusting slot 24 and is slidably matched with the adjusting slot 24 . By setting the connecting rod 30 to slide with the adjusting slot 24 , the second spring 20 can push the connecting rod 30 to slide in the adjusting slot 24 .
[0029] Among them, a second fixed block 13 is fixedly installed on the bottom surface of the exhaust chamber 11, a round hole is provided in the second fixed block 13, and a second fixed rod 12 is slidably installed in the round hole. An exhaust through hole 28 is opened on one side of the exhaust chamber 11. The second fixed rod 12 passes through the exhaust through hole 28 and is fixedly connected to the exhaust valve body 27. By setting the second fixed block 13 and the second fixed rod 12, the connecting rod 30 can be limited during its sliding process.
[0030] Among them, an air intake sealing ring 22 is fixedly installed in the air intake hole 21, and the air intake sealing ring 22 can be tightly fitted with the air intake valve body 23. By providing the air intake sealing ring 22, the sealing performance of the equipment is improved.
[0031] Among them, an exhaust sealing ring 29 is fixedly installed in the exhaust through hole 28, and the exhaust sealing ring 29 can be tightly clamped and matched with the exhaust valve body 27. By setting the exhaust sealing ring 29 to be tightly clamped and matched with the exhaust valve body 27, the exhaust sealing ring 29 can be quickly disassembled and assembled conveniently.
[0032] Among them, a sealing plate 17 is clamped at the bottom end of the valve chamber 7, and an air inlet and outlet hole 14 is opened on the upper surface of the sealing plate 17. A sealing valve disc 16 is fixedly installed on the bottom surface of the adjusting rod 15. The air inlet and outlet hole 14 and the sealing valve disc 16 can be tightly matched with each other. By setting the air inlet and outlet hole 14 and the sealing valve disc 16 to be tightly matched with each other, the opening and closing of the air hole 14 is convenient.
[0033] The sealing cover 6 is clamped on the top of the first installation groove 8 , and the sealing cover 6 and the first installation groove 8 are arranged to facilitate the disassembly and assembly of the sealing cover 6 .
[0034] Among them, a pressure cover 4 is fixedly installed at one end of the first fixing rod 19, and a cam 3 is slidably matched with one side of the pressure cover 4. By setting the pressure cover 4 and the cam 3 to slide together, the pressure cover 4 can push the intake valve body 23 away from the intake sealing ring 22.
[0035] Example: Figure 1-Figure 5 As shown, the working principle of a universal stator for engine intake and exhaust of the utility model is as follows: the farthest end of the cam 3 contacts the pressure cover 4, the pressure cover 4 pushes the intake valve body 23 away from the intake sealing ring 22, and the intake through hole 21 is in an open state. At the same time, the lowest end of the first boss 25 under the connecting rod 30 cooperates with the adjusting groove 24 to push the sealing valve disc 16 away from the intake and exhaust holes 14, and the intake and exhaust holes 14 are opened. The cam 3 continues to move, the connecting rod 30 moves to the left, the first spring 10 makes the adjusting rod 15 move upward, the intake and exhaust holes 14 are closed, and the cam 3 Continue to move from the middle part to the nearest end, the second spring 20 pushes the connecting rod 30 to continue to move to the left, the second boss 26 drives the adjusting rod 15 to move downward, the air inlet and exhaust holes 14 are opened, and the exhaust through hole 28 is in an open state, and the exhaust work starts. When the adjusting groove 24 slides between the first boss 25 and the second boss 26, the air inlet through hole 21 and the exhaust through hole 28 are both in an open state, which can discharge all the exhaust gas in the valve cavity 7, making the next air intake more sufficient, and at the same time it can also reduce the temperature in the valve cavity and increase the service life.
[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A universal stator for engine intake and exhaust, comprising a stator body (1), characterized in that: An air intake cavity (2) and an air exhaust cavity (11) are respectively provided on two opposite side surfaces of the stator body (1); a first fixing block (5) is fixedly installed on the bottom surface of the air intake cavity (2); a second mounting groove (18) is provided on one side surface of the first fixing block (5); a first fixing rod (19) is installed in the second mounting groove (18); a second spring (20) is installed on the peripheral side surface of the first fixing rod (19); an air intake hole (21) is provided on one side surface of the air intake cavity (2); the first fixing rod (19) passes through the first fixing block (5) and the air intake hole (21), and an air intake valve body (23) is fixedly installed on one end of the first fixing rod (19); a connecting rod (30) is fixedly installed on one surface of the air intake valve body (23); and an air exhaust valve body (27) is fixedly installed on the other end of the connecting rod (30).
2. The universal stator for engine intake and exhaust according to claim 1, characterized in that: A valve cavity (7) is provided in the stator body (1), a first mounting groove (8) is provided on the upper surface of the valve cavity (7), a reset rod (9) is installed in the first mounting groove (8), a first spring (10) is installed on the peripheral side of the reset rod (9), the reset rod (9) passes through the lower end of the stator body (1) and is fixedly connected to an adjustment rod (15), a side surface of the adjustment rod (15) is provided with an adjustment groove (24), and a first boss (25) and a second boss (26) are fixedly installed in sequence on the lower surface of the connecting rod (30).
3. The universal stator for engine intake and exhaust according to claim 2, characterized in that: The connecting rod (30) is installed through the adjusting groove (24) and is slidably matched with the adjusting groove (24).
4. The universal stator for engine intake and exhaust according to claim 1, characterized in that: A second fixing block (13) is fixedly installed on the bottom surface of the exhaust cavity (11), a circular hole is provided in the second fixing block (13), a second fixing rod (12) is slidably installed in the circular hole, an exhaust through hole (28) is opened on one side surface of the exhaust cavity (11), and the second fixing rod (12) passes through the exhaust through hole (28) and is fixedly connected to the exhaust valve body (27).
5. The universal stator for engine intake and exhaust according to claim 1, characterized in that: An air intake sealing ring (22) is fixedly installed in the air intake through hole (21), and the air intake sealing ring (22) can be tightly clamped and matched with the air intake valve body (23).
6. The universal stator for engine intake and exhaust according to claim 4, characterized in that: An exhaust sealing ring (29) is fixedly installed in the exhaust through hole (28), and the exhaust sealing ring (29) can be tightly clamped and matched with the exhaust valve body (27).
7. The universal stator for engine intake and exhaust according to claim 2, characterized in that: A sealing plate (17) is clamped at the bottom end of the valve cavity (7), and an air inlet and outlet hole (14) is provided on the upper surface of the sealing plate (17). A sealing valve disc (16) is fixedly mounted on the bottom surface of the regulating rod (15), and the air inlet and outlet hole (14) and the sealing valve disc (16) can be tightly fitted in contact with each other.
8. The universal stator for engine intake and exhaust according to claim 2, characterized in that: A sealing cover (6) is clamped on the top end of the first installation groove (8).
9. The universal stator for engine intake and exhaust according to claim 1, characterized in that: A pressure cover (4) is fixedly mounted on one end of the first fixing rod (19), and a cam (3) is slidably fitted on one side of the pressure cover (4).