A cylinder head swirl ratio boosting device for a diesel engine

Abstract

This invention discloses a cylinder head swirl ratio enhancement device for a diesel engine, specifically relating to the field of diesel engine technology. It includes a fixed ring and an adjusting ring rotatably mounted thereon. The adjusting ring has a circular array of protruding plates. A follower unit within the fixed ring includes a guide rod slidably mounted on the fixed ring, with its bottom end engaging with a valve seat inside the engine. In this diesel engine cylinder head swirl ratio enhancement device, when the valve seat moves, a storage spring releases its stored force to push the guide rod to slide, causing a lever to slide within a curved groove. This causes a valve plate to rotate along its hinge axis. The rotation of the valve plate not only turbulences the airflow on the outer wall of the adjusting ring but also rotates the adjusting ring, adjusting the position of the protruding plates so that their rotation can adjust the direction of the swirl when enhancing the swirl ratio.

Description

Technical Field

[0001] This invention relates to the field of diesel engine technology, and more specifically to a cylinder head swirl ratio enhancement device for a diesel engine. Background Technology

[0002] The vortex ratio of an engine is often used to evaluate the state of airflow and its impact on engine performance. Increasing the vortex ratio can improve engine performance, and by optimizing the design of the intake system, the overall performance of the engine can be effectively improved.

[0003] According to patent publication number CN213270075U, published on 2021-05-25, a cylinder head vortex ratio enhancement device is disclosed, including a spoiler installed in the cylinder head intake port. The spoiler is fixed by a seat ring. The spoiler is an annular plate structure with a hollowed-out center. The area of ​​the through hole in the center is smaller than the area of ​​the seat ring. The spoiler includes a wide section and a narrow section. The width of the wide section is greater than the width of the narrow section.

[0004] In the prior art, including the aforementioned patents, current methods for improving the swirl ratio of diesel engines primarily involve altering the structure of the engine intake port to change the swirl ratio or the airflow tumble ratio. However, since diesel engine intakes are often interconnected curved pipes, with multiple intakes linked by an intake manifold, and the curvature of the intake ports is generally limited, the improvement in swirl ratio is relatively small. Regarding the cylinder head swirl ratio enhancement device in the aforementioned patents, the described spoiler uses a hollowed-out annular plate structure. When airflow passes through the intake port, the different shapes of the wide and narrow sections of the spoiler achieve a turbulence effect. However, for this type of spoiler, its integrated structure and fixed installation mean that the direction of the turbulence is relatively singular, depending on the fixed positions of the wide and narrow sections of the spoiler. Summary of the Invention

[0005] The purpose of this invention is to provide a cylinder head swirl ratio enhancement device for a diesel engine to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cylinder head swirl ratio enhancement device for a diesel engine, comprising a fixed ring and an adjusting ring rotatably disposed thereon, wherein the adjusting ring is provided with a circular array of protruding plates, and a follower unit disposed within the fixed ring comprises:

[0007] The guide rod is slidably mounted on the fixed ring, and the bottom end of the guide rod is engaged with the valve seat retainer inside the engine.

[0008] A valve plate is hinged to a fixed ring, and the top of a guide rod slides in a slot on the valve plate that is coaxial with the hinge axis. A lever fixedly installed on the guide rod slides in a curved groove on the inner wall of the slot to make the valve plate flip. A vertical rod fixedly installed on the adjusting ring slides in a waist groove on the valve plate to make the adjusting ring rotate when the valve plate flips. An air opening is provided on the outer wall of the adjusting ring located on one side of the valve plate.

[0009] A power storage spring is mounted on the guide rod and stores power when the valve seat pushes the guide rod.

[0010] Preferably, the system includes a cover frame and an arc-shaped baffle that are fixedly mounted on a fixing ring and arranged in a circular array. The arc-shaped baffle is located between every two cover frames to cooperate with the cover frame and the adjusting ring to form an air intake channel. The valve plate is located on the path connecting the air intake channel and the air opening.

[0011] Preferably, a baffle is fixedly installed inside the cover frame, and the valve plate is movable on one side of the baffle to allow the air intake duct and the air opening to be intermittently connected.

[0012] Preferably, the shielding plate fixedly installed between the fixed rings has arc-shaped through slots arranged in a circular array, and the adjusting plate slidably disposed on the shielding plate moves on the arc-shaped through slots to shield.

[0013] Preferably, a vertical plate is fixedly installed on the top of the adjustment plate, and the adjustment plate and the adjustment ring rotate in the same direction.

[0014] Preferably, the extrusion rod fixedly installed on the guide rod is slidably disposed in the inclined slot opened on the upright plate to extrude the upright plate to slide.

[0015] Preferably, the upright plate is provided with wind shields, and the ends of the wind shields face the outer wall of the valve seat.

[0016] Preferably, the wind shield is rotatably mounted on the upright plate, and flips onto the upright plate when the storage spring releases its stored force.

[0017] Preferably, the wind shield is configured for switching between the following three workstations:

[0018] At workstation one, the top of the wind shield is flipped and tilted towards the lower side of the inclined slot.

[0019] At workstation two, the wind shield remains vertical.

[0020] At station three, the top of the wind shield flips towards the higher side of the inclined slot.

[0021] Preferably, the device also includes toothed plates arranged in a circular array, and the vertical plate moves relative to the toothed plates when the extrusion rod slides in the inclined slot. One end of the shielding blade shaft is fixedly installed with a bevel gear that meshes with the toothed plates.

[0022] In the above technical solution, the present invention provides a cylinder head swirl ratio enhancement device for a diesel engine, which has the following beneficial effects: when the valve seat moves, the storage spring releases its stored force to push the guide rod to slide and make the lever slide in the curved groove, thereby driving the valve plate to rotate along the axis of its hinge shaft. The rotation of the valve plate can not only turbulent the airflow on the outer wall of the adjustment ring, but also drive the adjustment ring to rotate, thereby adjusting the position of the protruding plate so that when the protruding plate enhances the swirl ratio, its rotation can adjust the direction of the swirl. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of the fixing ring provided in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the fixing ring component provided in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the adjustment ring structure provided in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the adjustment plate structure provided in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the overall cross-sectional structure of the fixing ring provided in an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the cross-sectional structure of the air inlet provided in an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the cross-sectional structure of the valve plate provided in an embodiment of the present invention;

[0031] Figure 8 This is a schematic cross-sectional view of the valve plate portion provided in an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the cross-sectional structure of the adjustment ring provided in an embodiment of the present invention;

[0033] Figure 10 Provided for embodiments of the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0034] Figure 11 Provided for embodiments of the present invention Figure 6 Enlarged structural diagram at point B;

[0035] Figure 12 Provided for embodiments of the present invention Figure 5 Enlarged structural diagram at point C;

[0036] Figure 13 Provided for embodiments of the present invention Figure 7 Enlarged structural diagram at point D;

[0037] Figure 14 Provided for embodiments of the present invention Figure 8 Enlarged structural diagram at point E;

[0038] Figure 15 Provided for embodiments of the present invention Figure 9 Enlarged structural diagram at point F.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Fixing ring; 2. Air inlet; 3. Adjusting ring; 4. Valve plate; 5. Guide rod; 6. Inner ring; 11. Cover plate frame; 12. Air duct; 13. Arc-shaped through slot; 14. Arc-shaped baffle; 15. Baffle; 21. Valve seat; 22. Seat ring; 31. Protruding plate; 32. Upright rod; 33. Air opening; 41. Waist groove; 42. Slot; 43. Curved groove; 51. Extrusion rod; 52. Extension rod; 53. Pulley; 54. Support rod; 55. Piston plate; 56. Air passage hole; 57. Energy storage spring; 61. Outer ring; 62. Adjusting plate; 63. Upright plate; 64. Slanted slot; 65. Air shield; 66. Bevel gear; 67. Gear plate. Detailed Implementation

[0041] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0042] like Figure 1-15 As shown, a cylinder head swirl ratio enhancement device for a diesel engine includes a fixed ring 1 and an adjusting ring 3 rotatably mounted thereon. The adjusting ring 3 has a circular array of protruding plates 31. A follower unit is disposed within the fixed ring 1, comprising:

[0043] The guide rod 5 is slidably mounted on the fixed ring 1, and the bottom end of the guide rod 5 is engaged with the valve seat 21 inside the engine.

[0044] The valve plate 4 is hinged to the fixed ring 1, and the top end of the guide rod 5 slides in the slot 42 opened on the valve plate 4 coaxial with the hinge shaft. The lever 53 fixedly installed on the guide rod 5 slides in the curved groove 43 opened on the inner wall of the slot 42 to make the valve plate 4 flip. The upright 32 fixedly installed on the adjusting ring 3 slides in the waist groove 41 opened on the valve plate 4 to make the adjusting ring 3 rotate when the valve plate 4 flips. The outer wall of the adjusting ring 3 is provided with an air opening 33 located on one side of the valve plate 4.

[0045] The energy storage spring 57 is mounted on the guide rod 5 and stores energy when the valve seat 21 pushes the guide rod 5.

[0046] Specifically, the valve seat 21 is movable within the intake port 2 provided in the diesel engine, and a seat ring 22 is provided on one side of the valve seat 21. The retaining ring 1 is provided on one side of the seat ring 22. When the retaining ring 22 is used to press and fix the retaining ring 1, and when the valve seat 21 closes the intake port 2, the valve seat 21 and the guide rod 5 are disengaged and moved by pushing the guide rod 5. The accumulating spring 57 is pushed by the guide rod 5 to accumulate force. The shaft fixedly installed on the valve plate 4 rotates on the retaining ring 1, and the slot 42 is opened at the bottom end of the shaft.

[0047] Furthermore, when the valve seat 21 opens the intake port 2, the stored spring 57 releases its stored force to push the guide rod 5 to slide. By using the lever 53 on the guide rod 5 to slide in the curved groove 43, the valve plate 4 is driven to rotate along its hinge axis. When the valve plate 4 rotates, the upright rod 32 slides in the waist groove 41. The rotation of the valve plate 4 then moves the upright rod 32, thereby driving the adjusting ring 3 to rotate. Since the protruding plate 31 is located on the path of the airflow in the middle of the fixed ring 1, the protruding plate 31 is used to achieve a turbulence effect. Secondly, the rotation of the adjusting ring 3 adjusts the position of the protruding plate 31, thereby adjusting the vortex ratio of the engine cylinder head. By controlling the size and shape of the protruding plate 31, the vortex ratio of the cylinder head can be improved. For example, by making multiple protruding plates 31 cooperate with each other to form a spiral distribution, the airflow forms a vortex when passing between multiple protruding plates 31, thereby improving the vortex ratio of the engine cylinder head.

[0048] Furthermore, by utilizing the air opening 33 on the outer wall of the adjusting ring 3, the blower air entering the air inlet 2 flows through the air opening 33 and enters the middle of the fixed ring 1, thereby reducing the obstruction effect of the adjusting ring 3 on the airflow. Secondly, since the valve plate 4 is located on one side of the air opening 33, the process of the valve plate 4 flipping to drive the adjusting ring 3 to rotate can also achieve a turbulence effect on the airflow flowing through the outer wall of the adjusting ring 3.

[0049] In the above technical solution, when the valve seat 21 moves, the storage spring 57 releases its stored force to push the guide rod 5 to slide and make the lever 53 slide in the curved groove 43, thereby causing the valve plate 4 to rotate along the axis of its hinge. The rotation of the valve plate 4 can not only turbulent the airflow on the outer wall of the adjusting ring 3, but also drive the adjusting ring 3 to rotate, thereby adjusting the position of the protruding plate 31 so that when the protruding plate 31 increases the vortex ratio, its rotation can adjust the direction of the vortex.

[0050] As a further embodiment of the present invention, it includes a cover plate frame 11 and an arc-shaped baffle 14 fixedly installed on the fixing ring 1 and arranged in a circular array, and the arc-shaped baffle 14 is located between every two cover plate frames 11 to cooperate with the cover plate frame 11 and the adjusting ring 3 to form an air intake channel 12, and the valve plate 4 is located on the path connecting the air intake channel 12 and the air opening 33.

[0051] Specifically, the cover plate frame 11 is located on one side of the air opening 33 and is attached to the outer wall of the adjusting ring 3. At the same time, the arc-shaped baffle 14 between every two cover plate frames 11 cooperates with the cover plate frame 11 and the adjusting ring 3 to form an air intake channel 12, so that the blown air in the air intake channel 12 flows along the cover plate frame 11 to the air opening 33, and then flows from the air opening 33 to the fixed ring 1. Meanwhile, since the valve plate 4 is located on the path connecting the air intake duct 12 and the air opening 33, when the valve seat 21 opens the air inlet 2, the storage spring 57 releases its stored force to push the guide rod 5 to slide. By using the lever 53 on the guide rod 5 to slide in the curved groove 43, the valve plate 4 is driven to rotate along its hinge axis into the cover plate frame 11. At this time, the blower air flowing along the air intake duct 12 to the air opening 33 is blocked and rotated by the valve plate 4, thereby using the valve plate 4 to achieve a more stable turbulence effect. At the same time, the cavity between the air intake duct 12 and the outer wall of the cover plate frame 11 and the adjusting ring 3 is used to guide and control the airflow.

[0052] As another embodiment of the present invention, a baffle 15 is fixedly installed inside the cover frame 11, and the valve plate 4 is movable on one side of the baffle 15 so that the air intake duct 12 and the air opening 33 are intermittently connected.

[0053] Specifically, the baffle 15 is located on one side of the valve plate 4, and the baffle 15 and the valve plate 4 are located at the connection between the air intake duct 12 and the cavity between the cover plate frame 11 and the outer wall of the adjusting ring 3. Therefore, when the valve plate 4 is flipped, it works with the baffle 15 to block most of the airflow from the air intake duct 12 into the air opening 33.

[0054] Furthermore, when the valve seat 21 closes the intake port 2, the bottom end of the guide rod 5 is pushed by the valve seat 21 to slide, and the guide rod 5 compresses the storage spring 57 to deform and store force. At this time, as... Figure 13As shown, the valve plate 4 flips into the air intake duct 12, and the air intake duct 12 and the air opening 33 are interconnected. Then, when the valve seat 21 opens the air inlet 2, the storage spring 57 releases its stored force to push the guide rod 5 to slide. By using the lever 53 on the guide rod 5 to slide in the curved groove 43, the valve plate 4 is driven to flip along its hinge axis and gradually approach the baffle 15. Then, under the flipping of the valve plate 4, the connection between the air intake duct 12 and the air opening 33 is broken by the valve plate 4 and the baffle 15. At this time, as... Figure 14 As shown. Simultaneously, as the valve plate 4 continues to rotate, the side of the valve plate 4 gradually moves away from the baffle 15, thus reconnecting the air intake duct 12 and the air opening 33. At this time, as... Figure 15 As shown. Therefore, the valve plate 4 and the baffle 15 are used to achieve intermittent connection between the air intake duct 12 and the air opening 33. At the same time, when the connection between the air intake duct 12 and the air opening 33 is disconnected, most of the airflow will flow over the protruding plate 31. Therefore, the change of airflow is controlled by the flipping of the valve plate 4, and different turbulence effects are achieved, so that the airflow flowing through the combustion chamber can be mixed more comprehensively.

[0055] Furthermore, such as Figure 12 As shown, an extension rod 52 is fixedly installed on the guide rod 5, and a support rod 54 is fixedly installed on the extension rod 52. A piston plate 55 is fixedly installed at the top of the support rod 54, and the two ends of the storage spring 57 are fixedly installed on the piston plate 55 and the fixing ring 1, respectively.

[0056] Furthermore, when the valve seat 21 closes the intake port 2, the bottom end of the guide rod 5 is pushed by the valve seat 21 to slide. The guide rod 5 compresses the accumulator spring 57 through the piston plate 55 to store energy. At this time, the gas in the piston chamber of the piston plate 55 is discharged along the air passage 56. Then, when the accumulator spring 57 releases its stored energy, the external air quickly enters the piston chamber along the air passage 56. Therefore, the air passage 56 is used to make the gas quickly enter and exit the piston chamber, thereby reducing the resistance during the deformation and energy storage process of the accumulator spring 57 and the energy release process.

[0057] As another embodiment of the present invention, the shielding plate fixedly installed between the fixed rings 1 has an arc-shaped through groove 13 arranged in a circular array, and the adjusting plate 62 slidably disposed on the shielding plate moves on the arc-shaped through groove 13 to shield.

[0058] Specifically, it also includes an inner ring 6 and an outer ring 61, with an adjusting plate 62 located between the inner ring 6 and the outer ring 61 in a circular array. By utilizing a baffle plate and its arc-shaped slot 13, a portion of the airflow flowing along the fixed ring 1 is diverted into the arc-shaped slot 13. The baffle plate is annular and coaxial with the fixed ring 1. The adjusting plate 62 is arc-shaped, and the axis of its arc angle is coaxial with the fixed ring 1. Therefore, the adjusting plate 62 rotates around the axis of the fixed ring 1. During this rotation, the adjusting plate 62 blocks the arc-shaped slot 13. By utilizing the area blocked by the adjusting plate 62, the opening size of the arc-shaped slot 13 is controlled. This allows for different effects of turbulence to be achieved as needed.

[0059] The adjustment plate 62 can slide on the baffle plate by means of airflow; or by setting a corresponding connecting part on the adjustment ring 3 so that when the adjustment ring 3 is turned by the valve plate 4, the adjustment plate 62 can slide; or any other method known to those skilled in the art for driving the adjustment plate 62 to slide is acceptable.

[0060] As another embodiment of the present invention, a vertical plate 63 is fixedly installed on the top of the adjustment plate 62, and the adjustment plate 62 and the adjustment ring 3 rotate in the same direction.

[0061] Specifically, the multiple vertical plates 63 can be arranged in a spiral configuration. Therefore, the airflow passing between the fixed rings 1 generates vortices when passing over the multiple spirally arranged vertical plates 63 to increase the vortex ratio. The vertical plates 63 and the raised plates 31 can be arranged in the same spiral direction, thereby further increasing the intensity of the vortex when the vortex flowing through the raised plates 31 passes over the vertical plates 63.

[0062] Secondly, since the adjusting plate 62 and the adjusting ring 3 rotate in the same direction, when the storage spring 57 releases its stored force to push the guide rod 5 to slide, the lever 53 on the guide rod 5 slides within the curved groove 43, thereby causing the valve plate 4 to rotate along its hinge axis and gradually approach the stop plate 15. Figure 13 At this time, the adjusting ring 3 rotates from one side of the cover frame 11 towards the side of the air intake duct 12. Since the adjusting plate 62 and the adjusting ring 3 rotate in the same direction, therefore... Figure 7 and Figure 8As shown, the adjusting plate 62 and the adjusting ring 3 rotate in the same direction to slide and gradually reduce the obstruction of the arc-shaped through-slot 13, thereby increasing the airflow through the arc-shaped through-slot 13. Thus, by controlling the position of the adjusting plate 62 to ensure that the adjusting plate 62 and the adjusting ring 3 rotate in the same direction, the angle of rotation of the adjusting plate 62 and the adjusting ring 3 remains consistent per unit time, thereby keeping the adjusting plate 62 stationary relative to the adjusting ring 3, and consequently keeping the upright plate 63 and the protruding plate 31 relatively stationary. Therefore, while generating vortices using the upright plate 63 and the protruding plate 31 respectively, the synchronous movement of the adjusting plate 62 and the adjusting ring 3 can improve the stability of the vortices.

[0063] As the preferred embodiment of the present invention, the extrusion rod 51 fixedly installed on the guide rod 5 is slidably disposed in the inclined slot 64 opened on the upright plate 63 to extrude the upright plate 63 to slide.

[0064] Specifically, such as Figure 1 , Figure 5 and Figure 12 As shown, the pressing rod 51 is slidably disposed in the inclined slot 64 opened on the vertical plate 63 to press the vertical plate 63 to slide.

[0065] Therefore, when the storage spring 57 releases its stored force to push the guide rod 5 to slide, the lever 53 on the guide rod 5 slides in the curved groove 43, thereby causing the valve plate 4 to rotate along its hinge axis and gradually approach the baffle 15. At this time, the adjusting ring 3 rotates from the cover plate frame 11 side to the air inlet duct 12 side. At the same time, due to the sliding of the guide rod 5, the extrusion rod 51 slides along the inclined groove 64 from the high position to the low position, thereby using the extrusion rod 51 to extrude the inclined groove 64, thereby driving the vertical plate 63 to slide. The direction of the vertical plate 63 sliding is consistent with the direction of the adjustment ring 3 rotation.

[0066] Therefore, while using the valve plate 4 to control the intermittent connection between the air intake duct 12 and the air opening 33, the valve plate 4 can also be used to control the rotation of the adjusting ring 3, thereby changing the position of the protruding plate 31. Furthermore, in conjunction with the extrusion rod 51 extruding the inclined slot 64, it can also drive the vertical plate 63 to remain in motion. When the vertical plate 63 moves, it drives the adjusting plate 62 to move, adjusting the area of ​​the arc-shaped through slot 13, thus controlling the opening size of the arc-shaped through slot 13. Moreover, it can keep the valve plate 4, adjusting ring 3, and vertical plate 63 synchronized, improving the turbulence effect while also increasing the vortex ratio within the cylinder head as needed.

[0067] As another embodiment of the present invention, the upright plate 63 is provided with a wind shield 65, and the ends of the wind shield 65 are respectively facing the outer wall of the valve seat 21.

[0068] Specifically, the shielding vanes 65 are fixedly installed on the upright plate 63, and the ends of the shielding vanes 65 face the outer wall of the valve seat 21. Therefore, while the valve seat 21 moves, the shielding vanes 65 are prevented from obstructing the valve seat 21. Since the multiple upright plates 63 are arranged in a circular array, the shielding vanes 65 and the upright plates 63 are aligned in a circular array. By using the multiple shielding vanes 65 in a spiral arrangement, the airflow passing between the fixed rings 1 generates vortices when passing through the shielding vanes 65, thereby increasing the cylinder head vortex ratio. Furthermore, since the upright plate 63 is slidably mounted on the shielding plate along with the adjusting plate 62, the position of the shielding vanes 65 can also be adjusted when the area of ​​the arc-shaped through slot 13 is adjusted by the synchronous sliding of the multiple adjusting plates 62, thereby changing the position of the vortex.

[0069] As another embodiment of the present invention, the wind shield 65 is rotatably mounted on the upright plate 63, and when the storage spring 57 releases its stored force, the wind shield 65 flips onto the upright plate 63.

[0070] Specifically, by rotating multiple baffle vanes 65 onto the vertical plate 63, vortices are generated when the multiple baffle vanes 65 are arranged in a spiral. Changing the rotation direction of the baffle vanes 65 can adjust the spiral shape of the baffle vanes 65, thereby changing the size and intensity of the vortex. By adjusting the size and intensity of the vortex, the air blown into the combustion chamber can be mixed more comprehensively. At the same time, when vortices of different sizes and intensities enter the combustion chamber, they can impact and mix the fuel and air in more locations and spaces, thereby enhancing the mixing effect of fuel and air and improving the combustion efficiency of fuel and air.

[0071] Furthermore, since the upright plate 63 is slidably mounted on the baffle plate along with the adjusting plate 62, and the area of ​​the arc-shaped through slot 13 is adjusted by the synchronous sliding of multiple adjusting plates 62, the position of the baffle wind vane 65 is adjusted at the same time, and its rotation size and intensity are adjusted, so that the gas is better distributed and the gas is better disturbed.

[0072] The way the shielding vane 65 flips onto the upright plate 63 can be by installing a torsion spring on the shaft of the shielding vane 65, so that the torsion spring stores force when the gas flows over the shielding vane 65 and releases the stored force when the airflow stops flowing over the shielding vane 65; or by fixing a top rod in the fixed ring 1, and using the top rod to push the shielding vane 65 when the adjusting plate 62 slides, thereby driving the shielding vane 65 to rotate; or any method known to those skilled in the art for driving the shielding vane 65 to rotate is acceptable.

[0073] As a further embodiment of the present invention, the wind shield 65 is assembled for switching between the following three workstations:

[0074] At workstation 1, the top of the wind shield 65 is flipped and tilted towards the lower side of the inclined slot 64.

[0075] Workstation 2, the wind shield 65 should be kept vertical;

[0076] At station three, the top of the wind shield 65 is flipped to the high side of the inclined slot 64.

[0077] Specifically, by tilting the tops of multiple shielding vanes 65 towards the lower side of the inclined slot 64, the shielding vanes 65 are positioned at station one. At this point, the multiple shielding vanes 65 are tilted and arranged in a circular array, forming a spiral shape. When the gas flows through the shielding vanes 65, vortices are generated. When the multiple shielding vanes 65 remain vertical, they are positioned at station two, where the airflow pattern and direction are altered by the guidance of the multiple shielding vanes 65. Furthermore, the tops of multiple shielding blades 65 are flipped and tilted towards the high side of the inclined slot 64, so that the shielding blades 65 are located at station three. At this time, because the multiple shielding blades 65 are tilted and arranged in a circular array, they cooperate to form a spiral shape. Compared with the spiral shielding blades 65 formed at station one, the spiral direction of the shielding blades 65 formed at station three is changed, so the direction of the generated vortex is also changed. In turn, by changing the direction of the vortex, the airflow entering the combustion chamber is made more chaotic, thereby better mixing with the oil and gas.

[0078] As a further preferred embodiment of the present invention, the inner wall of the fixing ring 1 is fixedly installed with toothed plates 67 arranged in a circular array, and when the pressing rod 51 slides in the inclined slot 64, the upright plate 63 moves relative to the toothed plates 67, and one end of the shaft of the wind shield 65 is fixedly installed with a bevel gear 66 that meshes with the toothed plates 67.

[0079] Specifically, the toothed plate 67 is fixedly installed on the inner wall of the fixing ring 1, such as... Figure 13 , Figure 14 and Figure 15 As shown, a bevel gear 66 and a toothed plate 67 are fixedly installed at one end of the shaft of the shielding vane 65 and mesh with each other. When the valve seat 21 closes the air inlet 2, the bottom end of the guide rod 5 is pushed by the valve seat 21 to slide, and the guide rod 5 compresses the storage spring 57 to deform and store force. At the same time, the lever 53 on the guide rod 5 slides in the curved groove 43, so that the valve plate 4 flips into the air intake channel 12, and the squeezing rod 51 moves from the low position to the high position of the inclined groove 64, thereby controlling the adjustment plate 62 to slide to shield the arc-shaped through groove 13. When the squeezing rod 51 is at the high position of the inclined groove 64, the opening of the arc-shaped through groove 13 is at its smallest. And the bevel gear 66 is located at this time as the toothed plate 67... Figure 7 and Figure 13 The location shown Figure 7The arrow indicates the direction in which the top of the shielding slab 65 flips and tilts. At this time, the top of the shielding slab 65 flips and tilts towards the lower side of the inclined slot 64 to be located at work station one.

[0080] Then, when the valve seat 21 opens the air inlet 2, the storage spring 57 releases its stored force to push the guide rod 5 to slide. The lever 53 on the guide rod 5 slides within the curved groove 43, causing the valve plate 4 to rotate along its hinge axis and gradually approach the baffle 15. Then, the rotation of the valve plate 4 disconnects the connection between the air intake duct 12 and the air opening 33 using the valve plate 4 and the baffle 15. Figure 14 As shown. When the valve plate 4 is flipped, the upright rod 32 slides in the waist groove 41. The flipping of the valve plate 4 then moves the upright rod 32, thereby driving the adjusting ring 3 to rotate. Since the protruding plate 31 is located on the airflow path in the middle of the fixed ring 1, the protruding plate 31 is used to create a turbulence effect. At the same time, when the guide rod 5 slides, the squeezing rod 51 on the guide rod 5 moves from the high position to the low position of the inclined groove 64, thereby squeezing the inclined groove 64 with the squeezing rod 51. At this time, the adjusting plate 62 slides to gradually open the arc-shaped through groove 13, thereby gradually increasing the size of the opening of the arc-shaped through groove 13.

[0081] Furthermore, such as Figure 7 and Figure 8 As shown, at this time, the bevel gear 66 moves relative to the toothed plate 67, and the bevel gear 66 and the toothed plate 67 mesh to cause the wind shield 65 to flip. And keep the wind shield 65 in a vertical state so as to be located at station two.

[0082] Then, as the storage spring 57 continues to release its stored energy, the lever 53 on the guide rod 5 continues to slide within the curved groove 43, causing the valve plate 4 to continue to rotate. At this time, the side of the valve plate 4 gradually moves away from the baffle 15, thereby reconnecting the air intake duct 12 and the air opening 33, allowing some airflow to flow along the air intake duct 12 and the air opening 33 to achieve a turbulence effect. Simultaneously, the continued rotation of the valve plate 4 causes the upright rod 32 to rotate, thereby continuing to drive the adjusting ring 3 to rotate. Furthermore, due to the movement of the guide rod 5, the pressing rod 51 on the guide rod 5 continues to move lower along the inclined groove 64, thereby using the pressing rod 51 to continue to press the inclined groove 64. At this time, the adjusting plate 62 continues to slide to gradually open the arc-shaped through groove 13, thereby continuing to gradually enlarge the opening of the arc-shaped through groove 13. Simultaneously, the bevel gear 66 continues to move relative to the toothed plate 67, and the bevel gear 66 and the toothed plate 67 mesh to continue causing the shielding vane 65 to continue to rotate, and the top of the shielding vane 65 rotates towards the higher side of the inclined slot 64 to be located at station three. Figure 9 The direction of the arrow shown is the direction in which the shielding 65 is flipped and tilted when the workstation is in position three.

[0083] Therefore, through the cooperation of guide rod 5 and valve seat 21, and the storage and release of the storage spring 57, the adjustment of the opening size of the arc-shaped through slot 13, the adjustment of the valve plate 4, the adjustment of the protrusion plate 31, and the cooperation between multiple shielding wind vanes 65 to form a spiral shape to facilitate the generation of vortices are achieved, thereby realizing the adjustment and improvement of the cylinder head vortex ratio of the engine.

[0084] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cylinder head swirl ratio boosting device for a diesel engine, characterized by, It includes a fixed ring (1) and an adjusting ring (3) rotatably mounted thereon. The adjusting ring (3) has a circular array of protruding plates (31). The follower unit disposed inside the fixed ring (1) includes: The guide rod (5) is slidably mounted on the fixed ring (1), and the bottom end of the guide rod (5) is engaged with the valve seat (21) inside the engine. The valve plate (4) is hinged to the fixed ring (1), and the top end of the guide rod (5) slides in the slot (42) on the valve plate (4) that is coaxial with the hinge axis. The lever (53) fixedly installed on the guide rod (5) slides in the curved groove (43) on the inner wall of the slot (42) to make the valve plate (4) flip. The upright (32) fixedly installed on the adjusting ring (3) slides in the waist groove (41) on the valve plate (4) to make the adjusting ring (3) rotate when the valve plate (4) flips. The outer wall of the adjusting ring (3) is provided with an air opening (33) on one side of the valve plate (4). A power storage spring (57) is mounted on the guide rod (5) and stores power when the valve seat (21) pushes the guide rod (5); Includes a cover plate frame (11) and an arc-shaped baffle (14) fixedly installed on a fixed ring (1) and arranged in a circular array, and the arc-shaped baffle (14) is located between every two cover plate frames (11) to cooperate with the cover plate frame (11) and the adjusting ring (3) to form an air intake channel (12), and the valve plate (4) is located on the path connecting the air intake channel (12) and the air opening (33); A baffle (15) is fixedly installed inside the cover frame (11), and the valve plate (4) is movable on one side of the baffle (15) so that the air intake duct (12) and the air opening (33) are intermittently connected.

2. A device for increasing the swirl ratio in the cylinder head of a diesel engine according to claim 1, characterised in that The shielding plate fixedly installed between the fixed rings (1) has an arc-shaped through groove (13) arranged in a circular array. The adjusting plate (62) slidably disposed on the shielding plate moves on the arc-shaped through groove (13) to shield.

3. A device for increasing the swirl ratio in the cylinder head of a diesel engine according to claim 2, characterised in that The top of the adjustment plate (62) is fixedly installed with a vertical plate (63), and the adjustment plate (62) and the adjustment ring (3) rotate in the same direction.

4. A device for increasing the swirl ratio in the cylinder head of a diesel engine according to claim 3, characterised in that The extrusion rod (51) fixedly installed on the guide rod (5) is slidably disposed in the inclined slot (64) opened on the upright plate (63) to extrude the upright plate (63) to slide.

5. A device for increasing the swirl ratio of the gases in the cylinder head of a diesel engine according to claim 4, characterised in that The upright plate (63) is provided with a wind shield (65), and the ends of the wind shield (65) face the outer wall of the valve seat (21).

6. A device for increasing the swirl ratio of the gases in the cylinder head of a diesel engine according to claim 5, characterised in that The wind shield (65) is rotatably mounted on the upright plate (63), and the wind shield (65) flips onto the upright plate (63) when the storage spring (57) releases its stored force.

7. A cylinder head swirl ratio enhancement device for a diesel engine according to claim 6, characterized in that, The wind shield (65) is installed for switching between the following three workstations: At workstation 1, the top of the wind shield (65) is flipped and tilted towards the lower side of the inclined slot (64); At workstation two, the wind shield (65) remains in a vertical position; At station three, the top of the wind shield (65) is flipped to the high side of the inclined slot (64).

8. A cylinder head swirl ratio enhancement device for a diesel engine according to claim 7, characterized in that, It also includes toothed plates (67) arranged in a circular array, and when the extrusion rod (51) slides in the inclined slot (64), the upright plate (63) moves relative to the toothed plates (67), and one end of the shaft of the wind shield (65) is fixedly installed with a bevel gear (66) that meshes with the toothed plates (67).

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