CN212318107U - Horizontal plunger type variable-height valve bridge assembly - Google Patents
Horizontal plunger type variable-height valve bridge assembly Download PDFInfo
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- CN212318107U CN212318107U CN202020639485.XU CN202020639485U CN212318107U CN 212318107 U CN212318107 U CN 212318107U CN 202020639485 U CN202020639485 U CN 202020639485U CN 212318107 U CN212318107 U CN 212318107U
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Abstract
The utility model discloses a transverse plunger type variable-height valve bridge assembly, which is arranged between a rocker arm and a valve, wherein the middle part of the rocker arm is provided with a rocker shaft, one end of the rocker arm is provided with a rocker roller, the other end of the rocker arm is provided with an adjusting bolt, the rocker roller is abutted with a cam, the valve bridge further comprises a valve bridge, a piston is sleeved on the valve bridge and abutted with the adjusting bolt, a valve groove is arranged on the valve bridge, and one end of the valve is arranged in the valve groove; the air valve bridge is provided with a vertical piston cylinder and a transverse plunger cylinder, the piston is arranged in the vertical piston cylinder, a piston spring is arranged between the piston and the vertical piston cylinder, one end of the piston is further provided with a piston rod, the piston spring is sleeved on the piston rod, and the bottom of the vertical piston cylinder is provided with a piston through hole.
Description
Technical Field
The utility model relates to a vehicle engine valve actuating mechanism technical field specifically indicates a variable high valve bridge assembly of horizontal plunger type.
Background
The variable valve lift valve train can be generally realized by a variable cam, a variable rocker arm and the like. The variable cam and the variable rocker arm have complex structures, can be realized by changing the cam position or the force-bearing position of the rocker arm, and often needs a complex conversion mechanism and a servo motor for control. The existing valve bridge with variable height is generally changed and limited by steel balls, pins and the like.
The variable valve lift technology at the present stage is generally in modes of variable cam and variable rocker ratio and the like, and the variable valve lift technology is very complex in mechanism, high in cost and low in matching degree. The existing valve bridge with variable height generally changes and limits through steel balls, pins and the like, and has the disadvantages of small stress area of parts, large contact stress, easy abrasion, and poor reliability and durability.
Disclosure of Invention
The utility model aims at providing a horizontal plunger type variable-height valve bridge assembly, its relative position through changing piston and plunger to change the operating height of valve bridge assembly and the position of stress state and atress, realize that cam mechanism's motion is lost, thereby realize variable valve lift, simple structure, it is small, light in weight, good reliability, it is with low costs.
In order to achieve the purpose, the utility model designs a horizontal plunger type variable-height valve bridge assembly which is arranged between a rocker arm and a valve, wherein the middle part of the rocker arm is provided with a rocker arm shaft, one end of the rocker arm is provided with a rocker arm roller, the other end of the rocker arm is provided with an adjusting bolt, the rocker arm roller is abutted with a cam, the horizontal plunger type variable-height valve bridge assembly also comprises a valve bridge, a piston is sleeved on the valve bridge and abutted with the adjusting bolt, a valve groove is arranged on the valve bridge, and one end of the valve is arranged in the valve groove; the valve bridge is provided with a vertical piston cylinder and a transverse plunger cylinder, the piston is arranged in the vertical piston cylinder, a piston spring is arranged between the piston and the vertical piston cylinder, one end of the piston is also provided with a piston rod, the piston spring is sleeved on the piston rod, and the bottom of the vertical piston cylinder is provided with a piston through hole; the transverse plunger cylinder is arranged at the bottom of the vertical piston cylinder, a plunger and a plug are arranged in the transverse plunger cylinder, a plunger spring is arranged between the plunger and the plug, the piston through hole is arranged in the radial direction of the plunger, the plunger is provided with a piston groove and a piston hole, the piston groove is opposite to the piston rod, and the directions of the piston hole and the piston through hole are the same; the rocker arm shaft is provided with a rocker arm shaft control oil duct, the rocker arm is internally provided with a rocker arm oil duct, the adjusting bolt is internally provided with an adjusting bolt oil duct, the piston is internally provided with a piston oil duct and a piston valve bridge connecting oil duct, the valve bridge is internally provided with a valve bridge oil duct, the transverse plunger cylinder is internally provided with a plunger oil cavity, and the rocker arm shaft control oil duct is communicated with the plunger oil cavity sequentially through the rocker arm oil duct, the adjusting bolt oil duct, the piston valve bridge connecting oil duct and the valve bridge oil; the plunger sets up between plunger oil pocket and jam, form the annular passageway between valve bridge oil duct and the vertical piston cylinder inner wall, piston valve bridge connection oil duct communicates with the annular passageway all the time when piston axial motion, and the piston outside is provided with the loop type passageway, can be when the piston rotates for piston valve bridge connection oil duct communicates with valve bridge oil duct through the annular passageway all the time.
Furthermore, one end of the piston is provided with a elephant foot, the adjusting bolt is arranged in the elephant foot, an elephant foot oil passage is arranged in the elephant foot, and the adjusting bolt oil passage is communicated with the piston oil passage through the elephant foot oil passage. Therefore, under the action of the piston spring, the top of the piston is always in close contact with the elephant foot, so that enough engine oil can enter the piston oil duct from the elephant foot oil duct, the engine oil is prevented from leaking, the sufficient engine oil pressure is maintained, and the plunger can be quickly pushed to translate in the blocking direction to switch the state.
Furthermore, a check ring is arranged at an opening of the vertical piston cylinder, and the piston is arranged in the check ring. In this way, in a free state, i.e. when the valve bridge assembly has not been fitted to the engine, the piston is prevented from ejecting from the piston chamber under the action of the piston spring, so that the valve bridge assembly remains integral.
Furthermore, one end of the piston is provided with a piston spring sleeve, and one end of the piston spring is arranged in the piston spring sleeve. Therefore, the axial limiting function of the piston spring sleeve can be used for ensuring that the piston spring cannot be combined in the working process, so that the service life of the piston spring is ensured.
Furthermore, one end of the plunger is provided with a plunger spring sleeve, and one end of the plunger spring is arranged in the plunger spring sleeve. Therefore, the axial limiting function of the plunger spring sleeve can be used for ensuring that the plunger spring cannot be in parallel rings in work so as to ensure the service life of the plunger spring.
Furthermore, a plunger limiting table is arranged on the plunger oil cavity, and the plunger is abutted against the plunger limiting table. Therefore, the plunger limiting table can limit the excessive movement of the plunger, and the purpose is to ensure that the relative position of the plunger and the piston rod is always within the designed reasonable range under the normal working state.
Furthermore, a plurality of valve grooves are formed in the valve bridge, valves are arranged in the valve grooves respectively, and the vertical piston cylinder is arranged in the centers of the valve grooves. The structure can ensure the balanced stress of the whole valve bridge and is more reasonable.
Preferably, the piston bore is arranged in a piston groove. Thus, when the height of the valve bridge needs to be reduced, the plunger moves in the transverse plunger cylinder for a minimum distance, so that the stability of the whole structure is improved.
Preferably, the piston through hole penetrates through the transverse plunger cylinder in the radial direction. Therefore, when the piston rod is long, the piston rod can penetrate through the piston through hole, and engine oil leaked to the middle part of the transverse plunger cylinder from the plunger oil cavity and the piston valve bridge connecting oil passage can be discharged from the piston through hole.
Preferably, an oil drainage hole is formed in the transverse plunger cylinder. Thus, the drain hole can be used to drain oil leaking from the plunger and air on the plunger-clogging side.
The utility model has the advantages that:
1. by adjusting the variable height of the valve bridge to different values, the structure can be used for variable valve displacement devices of different engines, or high-power braking devices of the engines, or the integration of the variable valve displacement devices and the high-power braking devices;
2. compared with other similar actuating mechanisms, the structure is simple, the assembly is simple, and the reliability is good;
3. the valve bridge has good universality and is suitable for all engines with four-valve design.
Drawings
Fig. 1 is a schematic view of the installation structure of the present invention;
FIG. 2 is a schematic view of the mounting structure under another working condition of the present invention;
FIG. 3 is a schematic view of the internal structure of the valve bridge in a free state;
FIG. 4 is a schematic view of the internal structure of a valve bridge when the valve clearance is adjusted;
FIG. 5 is a schematic view of the internal structure of a valve bridge during valve height switching;
FIG. 6 is a schematic view showing the internal structure of a valve bridge according to embodiment 2;
FIG. 7 is a left side schematic view of FIG. 6;
fig. 8 is a schematic view of the internal structure of the transverse plunger cylinder of embodiment 2.
In the figure: the rocker arm comprises a rocker arm 1 (wherein, a rocker arm oil duct 1a, a rocker arm shaft 1.1 and a rocker arm shaft control oil duct 1.1a), a valve 2, a rocker arm roller 3, an adjusting bolt 4 (wherein, an adjusting bolt oil duct 4a), a cam 5, a valve bridge 6 (wherein, a valve bridge oil duct 6a, a valve groove 6.1, a vertical piston cylinder 6.2, a ring groove passage 6.2a, a retainer ring 6.2.1, a transverse plunger cylinder 6.3, a plunger oil chamber 6.3a, a plunger limit table 6.3.1, an oil drain hole 6.3.2, a piston through hole 6.4), a piston 7 (wherein, the piston oil duct 7a, a piston valve bridge connecting oil duct 7b, a piston spring 7.1, a piston rod 7.2 and a piston spring sleeve 7.3), a plunger 8 (wherein, the plunger spring 8.1, the piston groove 8.2, the piston hole 8.3 and the plunger spring sleeve 8.4), a plug 9 and a elephant foot 10 (wherein, the.
Detailed Description
The invention will be described in further detail with reference to the following drawings and specific embodiments:
example 1:
as shown in fig. 1 to 5, the valve bridge assembly with the transversely-arranged plunger type and the variable height is arranged between a rocker arm 1 and a valve 2, a rocker shaft 1.1 is arranged in the middle of the rocker arm 1, a rocker roller 3 is arranged at one end of the rocker arm 1, an adjusting bolt 4 is arranged at the other end of the rocker arm 1, the rocker roller 3 abuts against a cam 5, the valve bridge assembly further comprises a valve bridge 6, a piston 7 is sleeved on the valve bridge 6, the piston 7 abuts against the adjusting bolt 4, a valve groove 6.1 is arranged on the valve bridge 6, and one end of the valve 2 is arranged in the valve groove 6.1; a vertical piston cylinder 6.2 and a transverse plunger cylinder 6.3 are arranged on the valve bridge 6, the piston 7 is arranged in the vertical piston cylinder 6.2, a piston spring 7.1 is arranged between the piston 7 and the vertical piston cylinder 6.2, a piston rod 7.2 is further arranged at one end of the piston 7, the piston spring 7.1 is sleeved on the piston rod 7.2, and a piston through hole 6.4 is arranged at the bottom of the vertical piston cylinder 6.2; the transverse plunger cylinder 6.3 is arranged at the bottom of the vertical piston cylinder 6.2, a plunger 8 and a plug 9 are arranged in the transverse plunger cylinder 6.3, a plunger spring 8.1 is arranged between the plunger 8 and the plug 9, the piston through hole 6.4 is arranged in the radial direction of the plunger 8, a piston groove 8.2 and a piston hole 8.3 are arranged on the plunger 8, the piston groove 8.2 is right opposite to the piston rod 7.2, and the piston hole 8.3 and the piston through hole 6.4 are in the same direction; the rocker arm shaft control oil duct is characterized in that a rocker arm shaft control oil duct 1.1a is arranged on the rocker arm shaft 1.1, a rocker arm oil duct 1a is arranged in the rocker arm 1, an adjusting bolt oil duct 4a is arranged in the adjusting bolt 4, a piston oil duct 7a and a piston valve bridge connecting oil duct 7b are arranged in the piston 7, a valve bridge oil duct 6a is arranged in the valve bridge 6, a plunger oil chamber 6.3a is arranged in the transverse plunger cylinder 6.3, and the rocker arm shaft control oil duct 1.1a is communicated with the plunger oil chamber 6.3a sequentially through the rocker arm oil duct 1a, the adjusting bolt oil duct 4a, the elephant foot oil duct 10a, the piston oil duct 7a, the piston valve bridge connecting oil duct; plunger 8 sets up between plunger oil pocket 6.3a and jam 9, form annular passageway 6.2a between valve bridge oil duct 6a and the vertical piston cylinder 6.2 inner wall, piston valve bridge connecting oil duct 7b is all the time with annular passageway 6.2a intercommunication when piston 7 axial motion.
One end of the piston 7 is provided with an elephant foot 10, the adjusting bolt 4 is arranged in the elephant foot 10, an elephant foot oil passage 10a is arranged in the elephant foot 10, and the adjusting bolt oil passage 4a is communicated with the piston oil passage 7a through the elephant foot oil passage 10 a. The opening part of the vertical piston cylinder 6.2 is provided with a retainer ring 6.2.1, and the piston 7 is arranged in the retainer ring 6.2.1. And one end of the piston 7 is provided with a piston spring sleeve 7.3, and one end of the piston spring 7.1 is arranged in the piston spring sleeve 7.3. Plunger 8 one end is equipped with plunger spring housing 8.4, plunger spring 8.1 one end sets up in plunger spring housing 8.4. And a plunger limiting table 6.3.1 is arranged on the plunger oil cavity 6.3a, and the plunger 8 is abutted against the plunger limiting table 6.3.1. The valve bridge 6 is provided with a plurality of valve grooves 6.1, each valve groove 6.1 is provided with a valve 2, and the vertical piston cylinder 6.2 is arranged in the center of the valve grooves 6.1. The piston bore 8.3 is arranged in the piston groove 8.2. The piston through hole 6.4 radially penetrates through the transverse plunger cylinder 6.3. And an oil drainage hole 6.3.2 is formed in the transverse plunger cylinder 6.3.
The piston 7 is in clearance fit with the vertical piston cylinder 6.2, the plunger 8 is in clearance fit with the transverse plunger cylinder 6.3, and the check ring 6.2.1 is pressed into the vertical piston cylinder 6.2 of the valve bridge 6 in an interference fit mode to limit the position of the piston 7, and the plug 9 is in threaded connection with the transverse plunger cylinder 6.3.
During the use, piston rod 7.2 stretches into in the piston groove 8.2 all the time to through the effort prevention plunger 8 rotation between piston groove 8.2 inner wall and the piston rod 7.2, reach the limiting displacement to plunger 8, when making plunger 8 remove to blockking up 9 sides, piston rod 7.2 is just right with piston hole 8.3.
Example 2:
as shown in fig. 6 to 8, the other structures are the same as those of embodiment 1, except that a piston groove 8.2 on the plunger 8 is eliminated, a pin hole is formed in the side surface of the plunger 8, a limit groove is formed in the inner wall of the transverse plunger cylinder 6.3, the positioning pin is press-fitted into the pin hole of the plunger in an interference manner, and the other end of the positioning pin is inserted into the limit groove. The pin thus prevents rotation of the plunger 8 along the axis to ensure that when the plunger is moved under oil pressure towards the bung 9 into contact with the plug 9, the piston rod 7.2 is aligned with the plunger bore 8.3 and passes smoothly into the bore 8.3 through the piston through bore 6.4. In this case, in a normal operating state (i.e., a state where the valve bridge is high), the piston groove 8.2 of the plunger changes its operating surface to the outer wall of the plunger 8, and the piston rod 7.2 contacts the outer wall of the plunger 8 to transmit motion and force.
The utility model discloses arrange on the valve actuating mechanism of engine, make plunger 8 be in different positions through solenoid valve control rocking arm axle control oil duct 1.1 a's break-make to make the position of piston 7 change, and then change valve 2's law of motion.
The method comprises the following steps in practical use:
1. free state:
as shown in fig. 3, when the plunger 8 is not assembled to the engine, no oil or oil pressure is 0 in the piston oil passage 7a, the valve bridge oil passage 6a and the plunger oil chamber 6.3a, and at this time, the plunger 8 moves to the right under the action of the spring force of the plunger spring 8.1 until the right side surface of the plunger 8 abuts against the plunger limit table 6.3.1 on the valve bridge 6. At this time, the piston rod 7.2 at the lower end of the piston 7 is opposite to the working surface of the plunger 8 (the piston groove 8.2 or the outer wall of the plunger 8), and the distance between the lower surface of the piston rod 7.2 and the working surface of the plunger 8 is A1。
At this time, the piston 7 moves upwards to abut against the retainer ring 6.2.1 under the action of the elastic force of the piston spring 7.1, and the distance between the piston spring sleeve 7.3 and the bottom surface of the vertical piston cylinder 6.2 is B1The distance between the piston 7 and the retaining ring 6.2.1 is C10. The height of the valve bridge assembly is H.
2. Assembling state:
as shown in FIG. 4, after the present invention is assembled to an engine, the valve clearance is adjusted to X. At this time, the distance between the piston rod 7.2 and the working surface of the plunger 8 is A2＝A1X, the distance between the piston 7 and the retaining ring 6.2.1 becomes C2＝C1The distance between the piston spring sleeve 7.3 and the bottom surface of the vertical piston cylinder 6.2 is B2＝B1-A2。
At this time, the piston 7 is pushed by the piston spring 7.1 to ensure that when the rocker roller 3 is opposite to the cam 5When the base circle is formed, a clearance A is kept between the working surfaces of the piston 7 and the plunger 82So that the plunger 8 can smoothly slide left and right in the axial direction.
3. And (3) normal working state:
when the engine is in a normal working state, the electromagnetic valve is not opened, the rocker shaft control oil duct 1.1a has no pressure, and the plunger 8 keeps abutting against the plunger limiting table 6.3.1 under the action of the plunger spring 8.1. When the cam 5 rotates, the rocker arm 1, the adjusting bolt 4 and the elephant foot 10 are sequentially pushed, the elephant foot 10 further pushes the piston 7 downwards, the piston rod 7.2 overcomes the elastic force of the piston spring 7.1 and contacts with the working surface of the plunger 8, the piston 7.2 further pushes the plunger 8, the plunger 8 further sequentially pushes the valve bridge 6 and the valve 2, the valve 2 moves downwards, at the moment, all strokes of the cam 5 are completely transmitted to the valve 2, and the working height of the valve bridge assembly is W-H-X.
4. The height of the valve bridge is reduced:
as shown in fig. 5, when the engine needs to reduce the valve lift, the solenoid valve is opened, the engine oil in the rocker shaft control oil passage 1.1a finally enters the plunger oil chamber 6.3a through the rocker oil passage 1a, the adjusting bolt oil passage 4a, the elephant foot oil passage 10a, the piston oil passage 7a, the piston valve bridge connecting oil passage 7b and the valve bridge oil passage 6a in sequence, and at this time, the plunger 8 moves leftwards by overcoming the elastic force of the plunger spring 8.1 under the pushing of the engine oil until the plunger spring sleeve 8.4 on the left side of the plunger 8 abuts against the plug 9.
The piston rod 7.2 now faces the piston bore 8.3. When the cam 5 rotates to sequentially push the rocker arm 1, the adjusting bolt 4, the elephant foot 10 and the piston 7 to move, the piston rod 7.2 penetrates through the piston through hole 6.4 to move downwards and is not contacted with the plunger 8, and the valve bridge 10 continues to push the valve 2 to start moving until the piston spring sleeve 7.3 is contacted with the bottom surface of the vertical piston cylinder 6.2.
Thus, the working height of the valve bridge assembly is reduced to W-H-B2X, only part of the lift of the cam 5 is transmitted to the valve 2.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, above-mentioned structure should all be regarded as belonging to the utility model discloses a protection scope.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a variable high valve bridge assembly of horizontal plunger type, sets up between rocking arm (1) and valve (2), rocking arm (1) middle part is equipped with rocking arm axle (1.1), the one end of rocking arm (1) is equipped with rocking arm roller (3), the other end of rocking arm (1) is equipped with adjusting bolt (4), rocking arm roller (3) and cam (5) hug closely, its characterized in that:
the valve bridge (6) is sleeved with a piston (7), the piston (7) is abutted to the adjusting bolt (4), a valve groove (6.1) is formed in the valve bridge (6), and one end of the valve (2) is arranged in the valve groove (6.1);
a vertical piston cylinder (6.2) and a transverse plunger cylinder (6.3) are arranged on the valve bridge (6), the piston (7) is arranged in the vertical piston cylinder (6.2), a piston spring (7.1) is arranged between the piston (7) and the vertical piston cylinder (6.2), a piston rod (7.2) is further arranged at one end of the piston (7), the piston spring (7.1) is sleeved on the piston rod (7.2), and a piston through hole (6.4) is formed in the bottom of the vertical piston cylinder (6.2);
the horizontal plunger cylinder (6.3) is arranged at the bottom of the vertical piston cylinder (6.2), a plunger (8) and a plug (9) are arranged in the horizontal plunger cylinder (6.3), a plunger spring (8.1) is arranged between the plunger (8) and the plug (9), the piston through hole (6.4) is arranged in the radial direction of the plunger (8), a piston groove (8.2) and a piston hole (8.3) are arranged on the plunger (8), the piston groove (8.2) is opposite to the piston rod (7.2), and the piston hole (8.3) and the piston through hole (6.4) are in the same direction;
a rocker shaft control oil duct (1.1a) is arranged on the rocker shaft (1.1), a rocker arm oil duct (1a) is arranged in the rocker arm (1), an adjusting bolt oil duct (4a) is arranged in the adjusting bolt (4), a piston oil duct (7a) and a piston valve bridge connecting oil duct (7b) are arranged in the piston (7), a valve bridge oil duct (6a) is arranged in the valve bridge (6), a plunger oil cavity (6.3a) is arranged in the transverse plunger cylinder (6.3),
the rocker arm shaft control oil duct (1.1a) is communicated with the plunger oil chamber (6.3a) sequentially through the rocker arm oil duct (1a), the adjusting bolt oil duct (4a), the piston oil duct (7a), the piston valve bridge connecting oil duct (7b) and the valve bridge oil duct (6 a);
the plunger (8) is arranged between the plunger oil chamber (6.3a) and the plug (9),
an annular groove passage (6.2a) is formed between the valve bridge oil passage (6a) and the inner wall of the vertical piston cylinder (6.2), and the piston valve bridge connecting oil passage (7b) is communicated with the annular groove passage (6.2a) all the time when the piston (7) moves axially.
2. The cross plunger variable height valve bridge assembly of claim 1 wherein: one end of the piston (7) is provided with a elephant foot (10), the adjusting bolt (4) is arranged in the elephant foot (10), an elephant foot oil passage (10a) is arranged in the elephant foot (10), and the adjusting bolt oil passage (4a) is communicated with the piston oil passage (7a) through the elephant foot oil passage (10 a).
3. The cross plunger variable height valve bridge assembly of claim 2 wherein: the opening part of the vertical piston cylinder (6.2) is provided with a check ring (6.2.1), and the piston (7) is arranged in the check ring (6.2.1).
4. A cross plunger variable height valve bridge assembly as set forth in claim 3 wherein: and one end of the piston (7) is provided with a piston spring sleeve (7.3), and one end of the piston spring (7.1) is arranged in the piston spring sleeve (7.3).
5. A transverse plunger type variable height valve bridge assembly according to any one of claims 1 to 4 wherein: plunger (8) one end is equipped with plunger spring housing (8.4), plunger spring (8.1) one end sets up in plunger spring housing (8.4).
6. The cross plunger variable height valve bridge assembly of claim 5 wherein: and a plunger limiting table (6.3.1) is arranged on the plunger oil cavity (6.3a), and the plunger (8) is abutted against the plunger limiting table (6.3.1).
7. The cross plunger variable height valve bridge assembly of claim 1 wherein: the valve bridge (6) is provided with a plurality of valve grooves (6.1), each valve groove (6.1) is provided with a valve (2), and the vertical piston cylinder (6.2) is arranged at the center of each valve groove (6.1).
8. The cross plunger variable height valve bridge assembly of claim 7 wherein: the piston bore (8.3) is arranged in the piston groove (8.2).
9. The cross plunger variable height valve bridge assembly of claim 8, wherein: the piston through hole (6.4) radially penetrates through the transverse plunger cylinder (6.3).
10. The cross plunger variable height valve bridge assembly of claim 8, wherein: and an oil drainage hole (6.3.2) is formed in the transverse plunger cylinder (6.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020639485.XU CN212318107U (en) | 2020-04-24 | 2020-04-24 | Horizontal plunger type variable-height valve bridge assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020639485.XU CN212318107U (en) | 2020-04-24 | 2020-04-24 | Horizontal plunger type variable-height valve bridge assembly |
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| Publication Number | Publication Date |
|---|---|
| CN212318107U true CN212318107U (en) | 2021-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020639485.XU Active CN212318107U (en) | 2020-04-24 | 2020-04-24 | Horizontal plunger type variable-height valve bridge assembly |
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| CN (1) | CN212318107U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021212663A1 (en) * | 2020-04-24 | 2021-10-28 | 东风商用车有限公司 | Transverse plunger-type variable-height valve bridge assembly |
| CN113931712A (en) * | 2021-09-30 | 2022-01-14 | 东风商用车有限公司 | Rocker arm assembly with variable valve lift |
-
2020
- 2020-04-24 CN CN202020639485.XU patent/CN212318107U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021212663A1 (en) * | 2020-04-24 | 2021-10-28 | 东风商用车有限公司 | Transverse plunger-type variable-height valve bridge assembly |
| CN113931712A (en) * | 2021-09-30 | 2022-01-14 | 东风商用车有限公司 | Rocker arm assembly with variable valve lift |
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