CN208564763U - A kind of balance system of engine - Google Patents
A kind of balance system of engine Download PDFInfo
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- CN208564763U CN208564763U CN201820874549.7U CN201820874549U CN208564763U CN 208564763 U CN208564763 U CN 208564763U CN 201820874549 U CN201820874549 U CN 201820874549U CN 208564763 U CN208564763 U CN 208564763U
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- engine
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- connecting rod
- crank
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Abstract
The utility model discloses a kind of balance system of engine, including engine body component, at least two slider-crank mechanisms are provided in the engine body component, one of slider-crank mechanism is oppositely arranged with another slider-crank mechanism；The velocity and acceleration of slide block movement is identical as the velocity and acceleration feature of slide block movement in another slider-crank mechanism in one of slider-crank mechanism, and ratios constant.The utility model has the advantages that smart structural design, using reliable, low in cost, the single order, second order and high frequent vibration generated in engine operation process can be effectively eliminated using it, reduce equipment damage rate, improve the experience sense of user, simultaneously, using the distribution form of guide post mechanism and slave connecting rod, second order not only is eliminated for realization and high frequent vibration has made structure place mat, and the problem of also solving engine housing occupied space, reduce the outer dimension of engine, also, also improve the service life of engine.
Description
Technical field
The utility model relates to a kind of engine, especially a kind of balance system of engine.
Background technique
Currently, in reciprocating mechanism, especially within the engine, the main reason for causing engine luggine is piston
The power for moving back and forth and generating cannot be fully balanced；During crankshaft rotates every time, piston is started and stopped twice, makes piston
The reaction force for the power for accelerating and slowing down is transmitted on the body of engine by crankshaft, so that engine generates periodically vibration
It is dynamic, along with being continuously increased for engine power demand, cause piston weight and piston speed to increase, the amplitude of vibration is increasingly
Greatly, this vibration passes to operator by the terminal device connecting with body, and operator is caused not feel good or can not receive.
Especially sent out in the more demanding driving equipment field of comfort, in the more demanding compressor equipment field of vibration, in aviation
Motivation field etc., this vibration frequently can lead to engine or associated equipment is damaged and service life reduction, sends out when serious
Raw major accident.
In order to reduce vibration, existing many engines reduce the vibration by additional rotation or reciprocating mass
It is dynamic.
The patent of invention of entitled " using the balancing device of reciprocating balance weight " is disclosed in CN1243188C, this is specially
Internal combustion engine has crankcase body and limits the cylinder boring of cylinder-bore axis in benefit, and the balancing device includes: crankshaft, and at least one
Part is located in crankcase body, and cylinder boring is located at the first side of crankshaft；Piston is placed in cylinder boring, for corresponding to crankshaft
It rotates and is moved back and forth in cylinder boring along cylinder-bore axis；Balance weight, placement are the opposite crankshaft second side in the first side.Balance
Device further include: linking arm, which is connected crankshaft and balance weight so that balance weight in response to crankshaft rotation and move back and forth；
Guide rail is connected with one in balance weight and crankcase body；Slit is formed in another in balance weight and crankcase body
In one, the slot part of slit accommodates at least part of guide rail, so that guide rail draws in the reciprocating movement of balance weight
Lead balance weight.
The patent of invention of entitled " balance system for singlecylinderengine " is disclosed in CN100351506, it should
Patent discloses the method for a kind of balance system and the piston force for balancing single cylinder internal combustion engine.Balance system include crankshaft,
Balanced component and groove.Crankshaft includes crankshaft part, crank, crank-pin and the eccentric band flange adjacent with crank.Balanced component tool
There are the counterbalancing mass portion being fastened to each other and coupling arm and stretches out the pin of counterbalancing mass portion side.It is eccentric convex
Edge supports coupling arm.Pin is accommodated in groove；Pin can be slided along groove and can also be rotated in groove, so that balance group
Part is shifted to and far from crankshaft when can rotate.
Balancing device or balance system in above-mentioned two patent can balance one order inertia power under certain conditions,
But there is also second orders and Higher-order inertia link power in engine luggine, although the vibration acceleration of second order and high-order adds compared with single order vibration
Speed, which has, substantially to be reduced, but still causes the judder of engine, and the vibration frequency of second order and high-order is closer to answering
With the intrinsic frequency of terminal, it is easy to cause the resonance of terminal, the generation of covibration will aggravate to vibrate significantly, influence association portion
The intensity of part and the experience sense of operator are by only eliminating one order inertia power can no longer meet current application scenarios demand.
In currently available technology, the scheme how realized and reduce piston reciprocating vibration to a certain degree is all only described, but
There is no propositions further to completely eliminate vibration, especially eliminates the scheme of second order and high frequent vibration.
Utility model content
The purpose of this utility model be just to provide it is a kind of can effectively eliminate engine reciprocations movement generate single order, second order and
The balance system of engine of high frequent vibration.
The purpose of this utility model is that technical solution in this way is realized, a kind of balance system of engine, including hair
Motivation organism component, it is characterized in that: be provided at least two slider-crank mechanisms in the engine body component, it is described its
In a slider-crank mechanism be oppositely arranged with another slider-crank mechanism；Slide block movement in one of slider-crank mechanism
Velocity and acceleration it is identical as the velocity and acceleration feature of slide block movement in another slider-crank mechanism, and ratio is permanent
It is fixed.
Wherein, the slider-crank mechanism includes connecting rod and with cranked crankshaft, one of crank block machine
The length of connecting rod and the eccentricity of crank of structure are respectively L1And e1, the length of connecting rod and crank of another slider-crank mechanism be inclined
The heart is away from respectively L2And e2, the L1With e2Product be K1, the L2With e1Product be K2, the K1With K2Ratio be model
Enclose is 0.8 to 1.2.
It is preferred that: the K1With K2Ratio be 1:1.Meet K1With K2Ratio be 1:1 be to guarantee that piston group and balance weight are used
Property power is capable of the necessary condition of complete equipilibrium.Meet under the conditions of this our available piston groups and balance weight adds when accelerating
Ratio of the speed under particular phases is certain value.Quality ratio at this time by control piston group and balance weight is in office to guarantee
The inertia force of moment piston group of anticipating and balance weight is equal in magnitude always, particular phases lower piston group and the inertia resultant force of balance weight etc.
In zero, completely eliminate of reciprocating vibration.
It further describes, crank phase angle and another slider-crank mechanism of one of slider-crank mechanism
Crank phase angle differs 180 ° ± 15 °.
It is preferred that: 180 ° of the carrier phase shift.It can guarantee piston group and balance weight when meeting 180 ° of carrier phase shift
It is identical always to change the moment, last phase inertia force direction any time begin it is anti-, in the identical situation lower piston group of inertia force amplitude and
The inertia resultant force of balance weight is equal to zero, completely eliminates of reciprocating vibration.
Further, one end of one of slider-crank mechanism passes through crank and the one of another slider-crank mechanism
End is connect by crank with same crankshaft, and inertia force of the guarantee effect on body is minimum, reduces organism stress.
In the present invention, one of slider-crank mechanism includes piston group and connecting rod assembly, described another
A slider-crank mechanism includes balance weight, slave connecting rod A and slave connecting rod B；The piston group is connect by connecting rod assembly with crankshaft；Institute
The both ends for stating balance weight pass through slave connecting rod A respectively and slave connecting rod B is connect with crankshaft；The slave connecting rod A and slave connecting rod B are located at
The two sides of connecting rod assembly；One end of the balance weight is connect by guide post mechanism with engine body component.
Reciprocal inertia force is eliminated in order to meet through the simple linear characteristics of motion, the crank block machine being oppositely arranged
For structure in acceleration movement, the acceleration of motion ratio of piston group and balance weight is identical.
It is preferred that piston group and the acceleration of motion ratio of balance weight are identical.Satisfaction completely eliminates of reciprocating vibration at this time
Condition.
In the present invention, balance weight is connect in this way with slave connecting rod A and slave connecting rod B: at the balance weight both ends
It is respectively arranged with connecting lugs A and connecting lugs B, the connecting lugs A and connecting lugs B pass through connecting pin respectively and setting exists
Connecting lugs A is connected with the lower end slave connecting rod A on the inside of connecting lugs B with the lower end slave connecting rod B.
Further describe, guide post mechanism includes guide post A and guide post B, the guide post A and guide post B be located at balance weight it is ipsilateral and
Balance weight is through on guide post A and guide post B, and the lower end of the guide post A and the lower end of guide post B and engine body member lower connect
It connects, the upper end of the guide post A and the upper end of guide post B are connect with the positioning mechanism being arranged in engine body component.
In the present invention, the section of the guide post A and guide post B is round or rectangle, the manufacture of round and rectangular section
Assembly technology is simple, and precision is easily guaranteed that.
Further, the piston group axis of movement and crank rotating shaft axis form plane S1, the guide post mechanism is located at S1
Two sides.
Wherein, balance weight constrains all rotary freedoms by guide post mechanism, only retains the one-movement-freedom-degree in a direction.
Wherein, the guide post A and guide post B passes through two fulcrum positioning supports respectively, the balance weight pass through guide post A and
It guide post B and is moved between two fulcrums of guide post A and guide post B.
Wherein, the positioning mechanism includes the positioning lug A with location hole being arranged in engine body component and determines
Position trunnion B, the upper end of the guide post A and the upper end of guide post B are each passed through the location hole of positioning lug A and determining for positioning lug B
Position hole.
It is vibrated to further be eliminated under the design of offset piston, the hinge centres of the piston group and connecting rod assembly are
O1, the balance weight is O with the hinge centres of slave connecting rod A or balance weight and slave connecting rod B2, the O1And O2It is distributed in piston group
The two sides of axis of movement.
In order to further eliminate the vibration of torque bring, the piston group axis of movement and crank rotating shaft axis composition are flat
Face S1, it is S by axis of piston movement and perpendicular to the plane of crankshaft center line in single cylinder engine2；Pass through piston in twin-tub machine
Axis of movement bisector and perpendicular to the plane of crankshaft center line be S2；Balance weight centroid position is located at plane S1And S2Intersection half
To reduce additional moment as far as possible in the range of diameter 10mm.
By adopting the above-described technical solution, the utility model has smart structural design, using reliable, low-cost
Advantage can effectively eliminate the single order, second order and high frequent vibration generated in engine operation process using it, reduce equipment damage
Rate improves the experience sense of user, meanwhile, using the distribution form of guide post mechanism and slave connecting rod, second order not only is eliminated to realize
The problem of having made structure place mat with high frequent vibration, and having also solved engine housing occupied space reduces the outer of engine
Shape size, also, also improve the service life of engine.
Detailed description of the invention
The Detailed description of the invention of the utility model is as follows:
Fig. 1 is the running track structure diagram of the utility model；
Fig. 2 is the slider-crank mechanism schematic perspective view of the utility model；
Fig. 3 is the slider-crank mechanism side structure schematic view of the utility model；
Fig. 4 is the A-A cross-sectional view of Fig. 3；
Fig. 5 is the engine overall structure diagram of the utility model；
Fig. 6 is the cross-sectional view of Fig. 5；
Fig. 7 is the structural schematic diagram of 2 straight arrangement double-cylinder engine of embodiment.
Specific embodiment
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing, but the utility model
These embodiments are not limited to, any improvement or substitution on the present embodiment essence spirit still falls within the utility model
Claim range claimed.
Embodiment 1: as shown in Figure 1, 2, 3, a kind of balance system of engine, including engine body component, it is characterized in that:
It is provided at least two slider-crank mechanisms in the engine body component, one of slider-crank mechanism and another
One slider-crank mechanism is oppositely arranged；In one of slider-crank mechanism the velocity and acceleration of slide block movement and another
The velocity and acceleration feature of slide block movement is identical in slider-crank mechanism, and ratios constant.
Wherein, in order to enable vibration eradicating efficacy is more preferable, the slider-crank mechanism includes connecting rod and the crankshaft with crank 7
8, the length of connecting rod and the eccentricity of crank of one of slider-crank mechanism are respectively L1And e1, another described slide crank
The length of connecting rod and the eccentricity of crank of block mechanism are respectively L2And e2, the L1With e2Product be K1, the L2With e1Product
For K2, the K1With K2Ratio be range be 0.8 to 1.2.
In the present invention, preferably its described K1With K2Ratio be 1:1.
Further, in order to enhance eliminate vibration effect, the crank phase angle of one of slider-crank mechanism with
The crank phase angle of another slider-crank mechanism differs 180 ° ± 15 °.
In the present invention, one end of one of slider-crank mechanism passes through crank and another crank block
One end of mechanism is connect by crank with same crankshaft.
As shown in Figure 4,5, 6, further, one of slider-crank mechanism includes piston group 2 and connecting rod assembly 3,
Another described slider-crank mechanism includes balance weight 4, slave connecting rod A5 and slave connecting rod B6；The piston group 2 passes through connecting rod assembly 3
It is connect with crankshaft 8；The both ends of the balance weight 4 pass through slave connecting rod A5 respectively and slave connecting rod B6 is connect with crankshaft 8；The slave connecting rod
A5 and slave connecting rod B6 is located at the two sides of connecting rod assembly 3；One end of the balance weight 4 passes through guide post mechanism and engine body
Component 1 connects.
Reciprocal inertia force is eliminated in order to meet through the simple linear characteristics of motion, the crank block machine being oppositely arranged
For structure in acceleration movement, piston group 2 is identical as the acceleration of motion ratio of balance weight 4.
It is preferred that piston group 2 is identical with the acceleration of motion ratio of balance weight 4.Meet at this time and completely eliminates reciprocal vibration
Dynamic condition.
In order to enable vibration is further reduced, the slider-crank mechanism being oppositely arranged is in acceleration movement, piston
The separate and motion profile close to upper and lower stop of group 2 motion profile and balance weight 4 separate and close to upper and lower stop is in ratio phase
Together.
Further, the piston group 2 and the hinge centres of connecting rod assembly 3 are O1, the balance weight 4 and slave connecting rod A5 or flat
The hinge centres of weighing apparatus block 4 and slave connecting rod B6 are O2, the O1And O2It is distributed in the two sides of piston group axis of movement.
Further, in order to enable when running, smaller, the piston group axis of movement and crank rotating shaft axis composition are vibrated
Plane S1, the guide post mechanism is located at S1Two sides.
It further describes, for the ease of assembling and saving bulk, is respectively arranged with connection at 4 both ends of balance weight
Trunnion A9 and connecting lugs B10, the connecting lugs A9 and connecting lugs B10 pass through connecting pin 11 respectively and are connecting branch with setting
Ear A9 is connected with the lower end slave connecting rod A5 on the inside of connecting lugs B10 with the lower end slave connecting rod B6.
Wherein, guide post mechanism include guide post A12 and guide post B13, the guide post A12 and guide post B13 to be located at balance weight 4 ipsilateral
And balance weight 4 is through on guide post A12 and guide post B13, the lower end of the guide post A12 and lower end and the engine body of guide post B13
The connection of 1 lower part of component, the upper end of the guide post A12 and the upper end of guide post B13 and the positioning being arranged in engine body component 1
Mechanism connection.
Wherein, the guide post A12 and guide post B13 passes through two fulcrum positioning supports respectively, and the balance weight is passed through and led
It column A12 and guide post B13 and is moved between two fulcrums of guide post A12 and guide post B13.
Further, the positioning mechanism includes the positioning lug A14 with location hole being arranged in engine body component 1
With positioning lug B15, the upper end of the guide post A12 and the upper end of guide post B13 are each passed through the location hole of positioning lug A14 and determine
The location hole of position trunnion B15.
Further, the balance weight 4 constrains all rotary freedoms by guide post mechanism, only retains the movement in a direction
Freedom degree.Two slide block movement brief accelerations being oppositely arranged in balance system of engine are in the feelings far from and close to upper and lower stop
It is in ratio same characteristic features under condition.
In the present invention, in order to enable fabrication technology is simple, precision is easily guaranteed that, the guide post A12 and is led
The section of column B13 is round or rectangle.
In the present invention, by 2 rotational movement link assembly 3 of crankshaft and slave connecting rod A5, slave connecting rod B6 it is flat
The reciprocating motion that balance weight 4 carries out on guide post A12, guide post B13 is realized in face movement, is carried out with the power that piston group 2 moves back and forth
Balance；Eliminate adjoint undesirable engine luggine.The utility model has used slave connecting rod A5 and slave connecting rod B6 can be more
Balance weight 4 is guided and positioned well, causes other vibrations to avoid or reduce, is effectively improved in single-cylinder engine operational process
Vibration, engine, which runs smoothly, improves the experience sense of client；The service life of engine is helped to improve simultaneously.
The utility model can active balance engine piston back and forth run the power of the single order of generation, second order and high-order, improve
Vibration in engine operation process.
Further, the piston group and the hinge centres of connecting rod assembly are O1, the balance weight 4 and slave connecting rod A5 or balance
The hinge centres of block 4 and slave connecting rod B6 are O2, the O1And O2It is distributed in the two sides of piston group axis of movement；This is done to
Vibration is further eliminated under the design of offset piston.
In order to further eliminate the vibration of torque bring, 2 axis of movement of piston group and crank rotating shaft axis composition
Plane S1, it is S by axis of piston movement and perpendicular to the plane of crankshaft center line in single cylinder engine2；Pass through work in twin-tub machine
It fills in axis of movement bisector and is S perpendicular to the plane of crankshaft center line2；Balance weight centroid position is located at plane S1And S2Intersection
To reduce additional moment as far as possible in the range of radius 10mm.
It is preferred that: when centroid position is located at plane S1And S2Intersection when to meet additional moment be zero.Vibrating effect is most at this time
It is excellent.
In the present invention, the pattern of the engine is not only single-cylinder engine, and straight arrangement double-cylinder engine is same
It is applicable in.
Embodiment 2: as shown in fig. 7, when in the balance system of engine, engine type is twin-tub in-line engine
When, the balance system is made of the first slider-crank mechanism, the second slider-crank mechanism and third slider-crank mechanism.It is described
First slider-crank mechanism contains first moved by the first the cylinder piston 16, the first cylinder rod 17 and the first the cylinder piston 16 of driving
Cylinder crank 18, second slider-crank mechanism contain living by the second the cylinder piston 19, the second cylinder rod 20 and the second cylinder of driving
Second cylinder crank 21 of 19 movement of plug, the third slider-crank mechanism contain clump weight 22, slave connecting rod 23 and driving counterweight
The third crank that block 22 moves.Wherein first slider-crank mechanism and second slider-crank mechanism and third slide crank
Block mechanism is positioned opposite, all rotary motion pair hinge centres connection in first slider-crank mechanism composition first three
Angular, all rotary motion pair hinge centres connection second triangle of composition in second slider-crank mechanism is described
All rotary motion pair hinge centres connection composition third triangle in third slider-crank mechanism, wherein described first
It is a, second, the normal vector of third triangle it is identical.Perpendicular to the normal vector plane be S, described first,
Second, projection of the third triangle on plane S be respectively that the first projected triangle, the second projected triangle and third are thrown
Shadow triangle, first projected triangle and the second projected triangle congruence and coincidence, the first projected triangle and third are thrown
Shadow triangle meets substantially similar feature.Length of connecting rod and the eccentricity of crank are real from meeting in the crank link mechanism being oppositely arranged
Apply the feature of example 1.
Claims (15)
1. a kind of balance system of engine, including engine body component, it is characterized in that: being set in the engine body component
At least two slider-crank mechanisms are equipped with, one of slider-crank mechanism is opposite with another slider-crank mechanism to be set
It sets；The velocity and acceleration of slide block movement and slide block movement in another slider-crank mechanism in one of slider-crank mechanism
Velocity and acceleration feature it is identical, and ratios constant.
2. balance system of engine as described in claim 1, it is characterized in that: the slider-crank mechanism includes connecting rod and with song
The crankshaft of handle, the length of connecting rod and the eccentricity of crank of one of slider-crank mechanism are respectively L1And e1, it is described another
The length of connecting rod and the eccentricity of crank of slider-crank mechanism are respectively L2And e2, the L1With e2Product be K1, the L2With e1
Product be K2, the K1With K2Ratio be range be 0.8 to 1.2.
3. balance system of engine as claimed in claim 2, it is characterized in that: the K1With K2Ratio be 1:1.
4. balance system of engine as claimed in claim 2 or claim 3, it is characterized in that: one of slider-crank mechanism
Crank phase angle differs 180 ° ± 15 ° with the crank phase angle of another slider-crank mechanism.
5. balance system of engine as claimed in claim 4, it is characterized in that: one end of one of slider-crank mechanism
It is connect by crank with same crankshaft by crank with one end of another slider-crank mechanism.
6. balance system of engine as claimed in claim 5, it is characterized in that: one of slider-crank mechanism includes living
Plug group and connecting rod assembly, another described slider-crank mechanism include balance weight, slave connecting rod A and slave connecting rod B；The piston group is logical
Connecting rod assembly is crossed to connect with crankshaft；The both ends of the balance weight pass through slave connecting rod A respectively and slave connecting rod B is connect with crankshaft；It is described
Slave connecting rod A and slave connecting rod B is located at the two sides of connecting rod assembly；One end of the balance weight passes through guide post mechanism and engine machine
The connection of body component.
7. balance system of engine as claimed in claim 6, it is characterized in that: in the slider-crank mechanism being oppositely arranged
Sliding block is in acceleration movement, the acceleration proportions constant of piston group and balance weight movement.
8. balance system of engine as claimed in claim 7, it is characterized in that: being respectively arranged with connection at the balance weight both ends
Trunnion A and connecting lugs B, the connecting lugs A and connecting lugs B pass through connecting pin respectively and are arranged in connecting lugs A and company
The lower end slave connecting rod A on the inside of trunnion B is connect to connect with the lower end slave connecting rod B.
9. balance system of engine as claimed in claim 8, it is characterized in that: guide post mechanism includes guide post A and guide post B, it is described
Guide post A and guide post B is located at that balance weight is ipsilateral and balance weight is through on guide post A and guide post B, the lower end of the guide post A and guide post B's
Lower end is connect with engine body member lower, and the upper end of the guide post A and the upper end of guide post B and setting are in engine body structure
Positioning mechanism connection in part.
10. balance system of engine as claimed in claim 9, it is characterized in that: the section of the guide post A and guide post B is circle
Or rectangle.
11. balance system of engine as claimed in claim 9, it is characterized in that: the piston group axis of movement and crank rotation
Axis axis forms plane S1, the guide post mechanism is located at S1Two sides.
12. balance system of engine as claimed in claim 9, it is characterized in that: the guide post A and guide post B passes through two respectively
A fulcrum positioning support, the balance weight pass through guide post A and guide post B and move between two fulcrums of guide post A and guide post B.
13. balance system of engine as claimed in claim 9, it is characterized in that: the positioning mechanism includes being arranged in engine
The positioning lug A with location hole and positioning lug B in organism component, the upper end of the guide post A and the upper end of guide post B are worn respectively
Cross the location hole of positioning lug A and the location hole of positioning lug B.
14. balance system of engine as claimed in claim 6, it is characterized in that: in the piston group and the hinge of connecting rod assembly
The heart is O1, the balance weight is O with the hinge centres of slave connecting rod A or balance weight and slave connecting rod B2, the O1And O2It is distributed in work
The two sides of plug group axis of movement.
15. balance system of engine as claimed in claim 6, it is characterized in that: the piston group axis of movement and crank rotation
Axis axis forms plane S1, it is S by axis of piston movement and perpendicular to the plane of crankshaft center line in single cylinder engine2；In twin-tub
Pass through axis of piston movement bisector in machine and is S perpendicular to the plane of crankshaft center line2；Balance weight centroid position is located at plane S1
And S2Intersection radius 10mm in the range of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820874549.7U CN208564763U (en) | 2018-06-07 | 2018-06-07 | A kind of balance system of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820874549.7U CN208564763U (en) | 2018-06-07 | 2018-06-07 | A kind of balance system of engine |
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| CN208564763U true CN208564763U (en) | 2019-03-01 |
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ID=65484492
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820874549.7U Active CN208564763U (en) | 2018-06-07 | 2018-06-07 | A kind of balance system of engine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533402A (en) * | 2018-06-07 | 2018-09-14 | 重庆宗申通用动力机械有限公司 | A kind of balance system of engine |
| WO2019233200A1 (en) * | 2018-06-07 | 2019-12-12 | 重庆宗申通用动力机械有限公司 | Engine balance system |
-
2018
- 2018-06-07 CN CN201820874549.7U patent/CN208564763U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533402A (en) * | 2018-06-07 | 2018-09-14 | 重庆宗申通用动力机械有限公司 | A kind of balance system of engine |
| WO2019233200A1 (en) * | 2018-06-07 | 2019-12-12 | 重庆宗申通用动力机械有限公司 | Engine balance system |
| US11466615B2 (en) | 2018-06-07 | 2022-10-11 | Chongqing Zongshen General Power Machine Co., Ltd. | Engine balancing system |
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