CN205744144U - Twin crankshaft engine - Google Patents
Twin crankshaft engine Download PDFInfo
- Publication number
- CN205744144U CN205744144U CN201620591653.6U CN201620591653U CN205744144U CN 205744144 U CN205744144 U CN 205744144U CN 201620591653 U CN201620591653 U CN 201620591653U CN 205744144 U CN205744144 U CN 205744144U
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- Prior art keywords
- piston
- cylinder
- guide bar
- cylinder body
- cervical region
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 10
- 229910010293 ceramic material Inorganic materials 0.000 claims description 8
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 239000000567 combustion gas Substances 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 description 5
- 239000002737 fuel gas Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a kind of twin crankshaft engine, belong to technical field of engines.It includes piston, two bent axles constituting double-crank mechanism, also includes cylinder body, and cylinder body includes cylinder body and Curved shaft support portion;The lower end of piston is piston guide bar, has piston rod guide groove in cylinder body, the lower ending opening of piston equipped with piston end cap, fixing is connected for removable between piston end cap with piston guide bar;Described piston is the piston without skirt that piston guide end separates with piston seal end, and the piston head that described piston seal end is the most described, described piston guide end is described piston guide bar and piston rod guide groove.This utility model good manufacturability, piston uses iso-stress design, adds intensity, and connecting rod has wear design with the connecting portion of piston, improves the reliability of anti-wear performance and complete machine.
Description
Technical field
This utility model relates to a kind of twin crankshaft engine, belongs to technical field of engines.
Background technology
At present, either gasoline engine or diesel engine, BTHE is more much lower than theoretical thermal efficiency, causes this existing
The one of the main reasons of elephant be the parts such as the cylinder sleeve, the piston that directly contact with high-temperature fuel gas be the metal poor by insulation effect
Material manufactures, and the metal material persistently cooling system of job demand dependence reliably constantly cools down what it was drawn from airtight combustor
Heat energy.Ceramic material is a kind of preferable material of insulation effect, the portion that the parts such as cylinder sleeve, piston directly contact with high-temperature fuel gas
If point using a ceramic material manufacture just can improve BTHE, but be because the fragility of ceramic material and cause low reliably
Property become its application technology barrier on the engine.
Patent (number of patent application: CN 201410653964.6) that the present inventor has applied for although to a certain extent
Solve the problems referred to above, but, its process for machining and manufacturing is more complicated, and the friction surface abrasion of relative motion is more serious, and some are thin
Joint problem is to be resolved and perfect.
Summary of the invention
In place of overcoming above-mentioned the deficiencies in the prior art, this utility model provides a kind of twin crankshaft engine, perfect
Double-crank mechanism electromotor, effectively reduces piston and the abrasion of cylinder sleeve and impact, improves ceramic material and applies on the engine
Reliability, improves BTHE.Meanwhile, this utility model have employed variable compression ratio design, by regulating piston variable length
Degree, changes the piston compression ratio at this electromotor of top dead centre moment.When electromotor is in middle small load condition, use big compression
Ratio improves the thermal efficiency;When electromotor is in full load mode, small reduction ratio is used to carry out knock prevention.
This utility model is achieved by the following technical solution: a kind of twin crankshaft engine, and it includes cylinder and can be
The piston of straight reciprocating motion is made in cylinder,
The both sides of described cylinder are disposed with two bent axles be arrangeding in parallel, cut with scissors between the crank-pin that two crankshaft relative are answered
It is connected to connecting rod, constitutes double-crank mechanism;
Also including cylinder body, cylinder body includes the cylinder body forming described cylinder and for accommodating and supporting described Double crank mechanism
The Curved shaft support portion of structure;
The top of described piston is piston head, and piston head lower end is cervical region, and cervical region lower end is the piston guide bar of cylindricality,
Make on piston guide bar and have slot, in the described slot described in rod slide insertion, make in described cylinder body and have with described
The piston rod guide groove that piston guide bar is adaptive, the lower ending opening of described slot equipped with piston end cap, piston end cap is led with piston
It it is removable fixing connection between bar;
Described piston is the piston without skirt that piston guide end separates with piston seal end, described piston seal end i.e. institute
The piston head stated, described piston guide end is described piston guide bar and piston rod guide groove;
Described cylinder has multiple, and multiple cylinders are the most single-row or biserial arrangement, and described piston, connecting rod, piston are led
Corresponding with the quantity of cylinder and position with the crank-pin on each bent axle to bar.
The part that described piston, cylinder directly contact with high-temperature fuel gas uses ceramic material.
Described connecting rod includes the link body being positioned at described slot, and the two ends of link body are equipped with connecting rod FE Tiler, even
Bar FE Tiler and link body are forming removable fixing be connected with the hinged place of crank-pin;Described link body and described slot
The lower edges of contact makes wearing layer.
Described wearing layer be the wearing layer being plated on the surface of described link body or the tiles being separately made wear-resisting
Material layer or the circular arc bulk wear-resistant material layer being separately made.
Described piston guide bar is cylindrical.
The end of described each bent axle is provided with travelling gear, and between two travelling gears, engagement is provided with output gear,
Output gear is arranged on the mandrel of cylinder body, and described cylinder body has the case accommodating described travelling gear.
Having the axis hole that the main shaft for described bent axle passes in described cylinder body, each axis hole lower end is equipped with FE Tiler.
Described cervical region is the cross cylindricality being made up of four floors, and the outside of four floors is in approximation iso-stress circular arc
Shape;Or the outline of described cervical region is the revolution shape with approximation equally stressed curved surface.
Described piston is variable-compression-ratio piston, is connected and has guiding sliding between described cervical region with described piston guide bar
Block, guide runner and described cervical region are slidably connected and are provided with stopping means, and described guide runner with described piston guide bar is
Removable fixing connection, flexible part groove in described cervical region, elastic component groove is built with elastic component, described cervical region and described piston
Compression clearance is left between guide post.
Described elastic component is several disc springs.
The beneficial effects of the utility model are:
This utility model by stress action spot by high temperature, high pressure and piston at a high speed and cylinder sleeve reciprocating zone-transfer to
The easy regions of lubrication of other low temperature, it is achieved exist without other active force in addition to piston ring back pressure between piston and cylinder, it is achieved make
The pressure loading of high-temperature fuel gas it is solely subjected to, it is achieved do not increasing pottery material with parts such as the cylinder sleeve of ceramic material manufacture, pistons
Its reliability and service life is improved on the premise of material toughness and manufacturing cost.Meanwhile, piston of the present utility model and connecting rod
Connect, connecting rod is all removable structure with the connection of bent axle, good manufacturability, and piston uses iso-stress design, adds intensity, connecting rod
There is wear design with the connecting portion of piston, improve the reliability of anti-wear performance and complete machine.Have the further advantage that
1, reciprocal inertia force and centrifugal intertia force can be with complete equipilibriums, and complete machine externally only has tilting moment, therefore, vibration
Little;
2, without side force, without piston knock noise, therefore, noise is little;
3, reciprocating mass is little, little toward complex acceleration, thus reciprocal inertia force is little;Without side force, thus piston grinds with cylinder sleeve
Damaging little, therefore, engine test bench characteristic curve can improve, and power per liter is high;
4, all moving surfaces are at the easy lubricant environment of low temperature, and mechanical efficiency can improve.
5, the existence of two bent axles can be greatly improved the ability to bear of in-cylinder pressure, and development potentiality is huge.
6, the advantage of mechanism ensure that the reliability of pottery use, the use of pottery significantly improve ignition temperature, for
The recovery of follow-up heat provides condition.
7, compression stroke sprays into normal-temperature water, reduces mixture temperature, and compression ratio (in conjunction with variable compression ratio just can be promoted to 15
It is 15~26).
8, spraying into high pressure saturation water, steam expansion work before igniting, the existence of steam simultaneously can reduce combustible gas
Body is to the heat transfer loss of casing wall, thus improves the thermal efficiency.
9, employing this utility model variable piston mechanism, compression ratio can realize from 11~18.6 variable, is ensureing high load capacity
On the premise of not knocking, the Smaller load thermal efficiency in raising, thus save oil consumption 20%.
10, exhaust phase, piston is in maximum extension state, residual gas can be greatly lowered, thus improve further
Compression ratio, improves the thermal efficiency.
Accompanying drawing explanation
Below according to drawings and Examples, this utility model is further illustrated.
Fig. 1 this utility model structural representation;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the right view of Fig. 1;
Fig. 4 is the top view of Fig. 1;
Fig. 5 is the upward view of Fig. 1;
Fig. 6 is the A-A sectional view of Fig. 1;
Fig. 7 is the B-B sectional view of Fig. 1;
Fig. 8 is the C-C sectional view of Fig. 1;
Fig. 9 is this utility model external structure axonometric chart;
Figure 10 is this utility model internal structure axonometric chart;
Figure 11 is the axonometric chart of a kind of piston of utility model;
Figure 12 is this utility model bar linkage structure figure;
Figure 13 is this utility model variable-compression-ratio piston structural representation, the D-D sectional view of Figure 14;
Figure 14 is this utility model variable-compression-ratio piston structural representation.
In figure, 1, bent axle, 1-1, crank-pin, 1-2, oil duct, 2, cylinder, 3, piston, 3-1, piston head, 3-2, cervical region, 3-
3, wear-resisting watt of set, 3-4, slot, 3-5, piston guide bar, 3-6, piston end cap, 3-7, floor, 3-8, elastic component groove, 3-9, lead
To slide block, 3-10, stopping means, 3-11, compression clearance, 4, connecting rod, 4-1, link body, 4-2, connecting rod FE Tiler are 4-3, wear-resisting
Layer, 4-4, lightening hole, 5, cylinder body, 5-1, cylinder body, 5-2, Curved shaft support portion, 5-3, piston rod guide groove, 5-4, FE Tiler, 6, pass
Moving gear, 7, output gear, 8, elastic component.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is further illustrated.
Such as accompanying drawing Fig. 1-Figure 10 one twin crankshaft engine, it includes cylinder 2 and can make straight reciprocating motion in cylinder
Piston 3,
The both sides of described cylinder 2 are disposed with two bent axles be arrangeding in parallel 1, the crank-pin 1-1 that two bent axles 1 are corresponding
Between be hinged with connecting rod 4, constitute double-crank mechanism;
Also include that cylinder body 5, cylinder body 5 include being formed the cylinder body 5-1 of described cylinder 2 and for accommodating and supporting described double
The Curved shaft support portion 5-2 of crank mechanism;
The top of described piston 3 is piston head 3-1, and piston head 3-1 lower end is cervical region 3-2, and cervical region 3-2 lower end is cylindricality
Piston guide bar 3-5, on piston guide bar 3-5, making has slot 3-4, described connecting rod 4 to be slidably inserted into described slot 3-4
In, make in described cylinder body 5 and have the piston rod guide groove 5-3 adaptive with described piston guide bar 3-5, the lower end of described slot 3-4
Opening also fixing is connected for removable equipped with between piston end cap 3-6, piston end cap 3-6 with piston guide bar 3-5;Described piston
Guide post 3-5 preferably cylinder, uniform force, good manufacturability, structure simplify.
Described piston 3 is the piston without skirt that piston guide end separates with piston seal end, and described piston seal end is i.e.
Described piston head 3-1, described piston guide end is described piston guide bar 3-5 and piston rod guide groove 5-3;
Described cylinder 2 has multiple, and multiple cylinders 2 are the most single-row or biserial arrangement, described piston 3, connecting rod 4, lives
Guide post 3-5 is corresponding with the quantity of cylinder 2 and position with the crank-pin on each bent axle 1 for plug.
The part that described piston 3, cylinder 2 directly contact with high-temperature fuel gas uses ceramic material.
Described connecting rod 4 includes link body 4-1 being positioned at described slot 3-4, and the two ends of link body 4-1 are equipped with even
Bar FE Tiler 4-2, connecting rod FE Tiler 4-2 and link body 4-1 are forming removable fixing be connected with the hinged place of crank-pin 1-1;Described
The lower edges that contacts with described slot 3-4 of link body 4-1 make and have wearing layer 4-3.
Described wearing layer 4-3 be the wearing layer being plated on the surface of described link body 4-1 or be separately made watt
Shape wear-resistant material layer or the circular arc bulk wear-resistant material layer being separately made.
The end of described each bent axle 1 is provided with travelling gear 6, and between two travelling gears 6, engagement is provided with output gear
Wheel 7, output gear 7 is arranged on the mandrel of cylinder body 5, and described cylinder body 5 has the case accommodating described travelling gear 6.
Having the axis hole that the main shaft for described bent axle 1 passes in described cylinder body 5, each axis hole lower end is equipped with FE Tiler 5-2.
As shown in Fig. 6, Fig. 7, Figure 11, described cervical region 3-2 is the cross cylindricality being made up of four floor 3-7, four ribs
The outside of plate 3-7 is in approximation iso-stress circular arc;Or the outline of described cervical region 3-2 has approximation equally stressed curved surface
Revolution shape.One skilled in the art will appreciate that iso-stress design is perfect condition, engineer applied can only be to reach approximately, institute
It is clearly with the term of " approximation ".For this utility model, piston can be by certain moment of flexure, and cervical region 3-2 top is subject to
Moment of flexure relatively big, therefore the circular arc in the outside of four floor 3-7 is the camber line gradually tapered up from the top down;As the revolution bodily form
Shape, should be upper coarse and lower fine revolving body.
Such as Figure 13, shown in 14, described piston 3 is variable-compression-ratio piston, described cervical region 3-2 and described piston guide
Connect between bar 3-5 and have guide runner 3-9, guide runner 3-9 and described cervical region 3-2 are slidably connected and are provided with stopping means 3-
10, described guide runner 3-9 and described piston guide bar 3-5 are removable fixing be connected, flexible part groove in described cervical region 3-2
3-8, elastic component groove 3-8, built with elastic component 8, leave compression clearance between described cervical region 3-2 and described piston guide bar 3-5
3-11.Using this utility model variable-compression-ratio piston mechanism, compression ratio can realize from 11~18.6 variable, is ensureing high load capacity
On the premise of not knocking, the Smaller load thermal efficiency in raising, thus save oil consumption 20%.
Described elastic component 8 is that several disc springs combine, can bear big load, be easily installed, safety high.
In double-crank mechanism, the frictional force of piston and connecting rod causes the side force of piston, and piston is back and forth slided along guide pad
Dynamic, piston side force is born from the impact friction without causing piston and cylinder sleeve by piston guide groove completely.Either piston
The friction of friction with connecting rod or piston and piston guide groove, all in the easy lubricant environment of low temperature.In embodiment, rub herein
Coefficient is 0.02~0.06, and its effect is: during engine speed 4000r/min, traditional crank slide block mechanism maximum lateral force
3500N, piston speed 16m/s, abrasion between piston and cylinder sleeve, seal, leak gas, the problem such as mechanical noise following.And
Piston of the present utility model has a unique design: guide and hermetic separation, and guide end bears whole load and is in low temperature and easily moistens
Territory, skating area, sealed end no-load and be in high-temperature area, the problems referred to above can get good solution.4 cylinder 1.8L the most in upright arrangement are
Export greatly moment of torsion: 225Nm@4000r/min, peak power output: 118KW@5500r/min, restrict the peak torque moment
One of principal element that 4000r/min rises is the abrasion of piston and cylinder, and this moment can actively reduce oil spout with rear engine
Amount reduces abrasion.The piston guide mechanism of this utility model twin crankshaft engine is in the easy lubricant environment of low temperature, moves at this
Secondary force feed mode is the most ripe, and wear extent is the least, and the rotating speed moment that therefore peak torque is corresponding can extend to
About 5500r/min.
It addition, this utility model can reduce electromotor height dimension;Conventional flat contraposition engine, lateral dimension is restriction
One critical size of automobile general arrangement, slider-crank mechanism is in order to reduce piston and cylinder sleeve side force, and the tie rod holes heart is away from typically
Being 3.2~4 times of crank up radius, this utility model uses double-crank mechanism thus is not limited by this factor.
Claims (10)
1. a twin crankshaft engine, it includes cylinder (2) and can make the piston (3) of straight reciprocating motion in cylinder, and it is special
Levy and be:
The both sides of described cylinder (2) are disposed with two bent axles be arrangeding in parallel (1), the crank-pin that two bent axles (1) are corresponding
(1-1) it is hinged with connecting rod (4) between, constitutes double-crank mechanism;
Also include that cylinder body (5), cylinder body (5) include being formed the cylinder body (5-1) of described cylinder (2) and be used for accommodating and support institute
State the Curved shaft support portion (5-2) of double-crank mechanism;
The top of described piston (3) is piston head (3-1), and piston head (3-1) lower end is cervical region (3-2), cervical region (3-2) lower end
Being the piston guide bar (3-5) of cylindricality, the upper making of piston guide bar (3-5) has slot (3-4), described connecting rod (4) to slide slotting
Entering in described slot (3-4), making in described cylinder body (5) has the piston rod guide groove adaptive with described piston guide bar (3-5)
(5-3), the lower ending opening of described slot (3-4) equipped with piston end cap (3-6), piston end cap (3-6) and piston guide bar (3-
5) it is removable fixing connection between;
Described piston (3) is the piston without skirt that piston guide end separates with piston seal end, described piston seal end i.e. institute
The piston head (3-1) stated, described piston guide end is described piston guide bar (3-5) and piston rod guide groove (5-3);
Described cylinder (2) has multiple, and multiple cylinders (2) are the most single-row or biserial arrangement, described piston (3), connecting rod
(4), piston guide bar (3-5) is corresponding with the quantity of cylinder (2) and position with the crank-pin on each bent axle (1).
Twin crankshaft engine the most according to claim 1, it is characterised in that: described piston (3), cylinder (2) and high temperature
The part that combustion gas directly contacts uses ceramic material.
Twin crankshaft engine the most according to claim 1, it is characterised in that: described connecting rod (4) includes being positioned at described inserting
Link body (4-1) in groove (3-4), the two ends of link body (4-1) equipped with connecting rod FE Tiler (4-2), connecting rod FE Tiler (4-2) with
Link body (4-1) is forming removable fixing be connected with the hinged place of crank-pin (1-1);Described link body (4-1) and institute
The lower edges that the slot (3-4) stated contacts makes wearing layer (4-3).
Twin crankshaft engine the most according to claim 3, it is characterised in that: described wearing layer (4-3) is in described company
Wearing layer that the surface of bar main body (4-1) is plated to or the tiles wear-resistant material layer being separately made or the circular arc being separately made
Block wear-resistant material layer.
Twin crankshaft engine the most according to claim 1, it is characterised in that: described piston guide bar (3-5) is cylinder
Shape.
Twin crankshaft engine the most according to claim 1, it is characterised in that: the end of described each bent axle (1) is installed
Having travelling gear (6), between two travelling gears (6), engagement is provided with output gear (7), and output gear (7) is arranged on cylinder body (5)
Mandrel on, described cylinder body (5) has accommodate described travelling gear (6) case.
Twin crankshaft engine the most according to claim 1, it is characterised in that: have in described cylinder body (5) for described bent axle
(1) axis hole that main shaft passes, each axis hole lower end is equipped with FE Tiler (5-4).
Twin crankshaft engine the most according to claim 1, it is characterised in that: described cervical region (3-2) is by four floors
(3-7) the cross cylindricality constituted, the outside of four floors (3-7) is in approximation iso-stress circular arc;Or described cervical region (3-2)
Outline be have approximation equally stressed curved surface revolution shape.
Twin crankshaft engine the most according to claim 1, it is characterised in that: described piston (3) is that variable compression ratio is lived
Plug, is connected between described cervical region (3-2) with described piston guide bar (3-5) and has guide runner (3-9), guide runner (3-9)
It is slidably connected with described cervical region (3-2) and is provided with stopping means (3-10), described guide runner (3-9) and described piston guide
Bar (3-5) is removable fixing connection, and flexible part groove (3-8) in described cervical region (3-2), elastic component groove (3-8) is built with bullet
Property part (8), leaves compression clearance (3-11) between described cervical region (3-2) and described piston guide bar (3-5).
Twin crankshaft engine the most according to claim 9, it is characterised in that: described elastic component (8) is several dish
Spring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201620591653.6U CN205744144U (en) | 2016-06-16 | 2016-06-16 | Twin crankshaft engine |
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Application Number | Priority Date | Filing Date | Title |
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CN201620591653.6U CN205744144U (en) | 2016-06-16 | 2016-06-16 | Twin crankshaft engine |
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ID=57385329
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CN201620591653.6U Withdrawn - After Issue CN205744144U (en) | 2016-06-16 | 2016-06-16 | Twin crankshaft engine |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105927380A (en) * | 2016-06-16 | 2016-09-07 | 徐州弦波引擎机械科技有限公司 | Double-crankshaft engine |
WO2017215666A1 (en) * | 2016-06-16 | 2017-12-21 | 徐州弦波引擎机械科技有限公司 | Engine cylinder |
CN113494511A (en) * | 2021-07-21 | 2021-10-12 | 超捷紧固系统(上海)股份有限公司 | Cold heading forming wear-resistant sliding block shaft and forming method |
-
2016
- 2016-06-16 CN CN201620591653.6U patent/CN205744144U/en not_active Withdrawn - After Issue
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105927380A (en) * | 2016-06-16 | 2016-09-07 | 徐州弦波引擎机械科技有限公司 | Double-crankshaft engine |
WO2017215665A1 (en) * | 2016-06-16 | 2017-12-21 | 徐州弦波引擎机械科技有限公司 | Double crankshaft engine |
WO2017215666A1 (en) * | 2016-06-16 | 2017-12-21 | 徐州弦波引擎机械科技有限公司 | Engine cylinder |
CN105927380B (en) * | 2016-06-16 | 2019-05-10 | 徐州弦波引擎机械科技有限公司 | Twin crankshaft engine |
US10495023B2 (en) | 2016-06-16 | 2019-12-03 | Xuzhou Xian Bo Engine Machinery Technology Co., Ltd. | Engine cylinder block |
US10502129B2 (en) | 2016-06-16 | 2019-12-10 | Xuzhou Xian Bo Engine Machinery Technology Co., Ltd. | Double-crankshaft engine |
CN113494511A (en) * | 2021-07-21 | 2021-10-12 | 超捷紧固系统(上海)股份有限公司 | Cold heading forming wear-resistant sliding block shaft and forming method |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
AV01 | Patent right actively abandoned |
Granted publication date: 20161130 Effective date of abandoning: 20190510 |
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AV01 | Patent right actively abandoned |