CN105351099B - A kind of method for large-scale diesel engine fly-wheel scale - Google Patents
A kind of method for large-scale diesel engine fly-wheel scale Download PDFInfo
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- CN105351099B CN105351099B CN201510724532.4A CN201510724532A CN105351099B CN 105351099 B CN105351099 B CN 105351099B CN 201510724532 A CN201510724532 A CN 201510724532A CN 105351099 B CN105351099 B CN 105351099B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
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Abstract
A kind of method for large-scale diesel engine fly-wheel scale, diesel engine includes frame, support, bent axle and flywheel, wherein, bent axle has some crank throws, flywheel gear is provided with the excircle of flywheel, calibration circle is provided with the tooth root of the flywheel gear, pointer is connected with frame, the pointer is arranged on the position with a vertical 33 ° counterclockwise and points to calibration circle, and turning engine is provided with support；It is characterized in that：Based on each crank throw top dead center position of bent axle and each cylinder ignition timing demands of diesel engine, on the basis of the main bearing hole center of support, rotated by turning engine flywheel driven, according to each cylinder firing order, the top dead center position of each crank throw is realized one by one and is made in the position mark on flywheel, so as to complete flywheel synchronization scale located space body operation, each crank throw top dead center position mark and circle angle index for meeting to require are carved on calibration circle.Present invention, avoiding the operation for repeating dismounting flywheel, quality accident is avoided, there is the advantages of simple to operate, precision is high, is positioned suitable for the scale of large-scale diesel engine flywheel.
Description
Technical field
The present invention relates to the new method of large-scale diesel engine assembly technology, and in particular to one kind is used for large-scale diesel engine flywheel and carved
The method of degree, belong to diesel engine manufacturing field.
Background technology
Flywheel is the moving component in diesel engine, positioned at diesel engine base thrust end on the outside of, and with the main shaft of support
Bent axle in holding is connected；Play a part of balance crankshaft operating, and debugging diesel engine operating timing in diesel engine operating
Effect.
Referring to Fig. 1, by taking five cylinder diesels as an example, the bent axle 03 on support 02 has five crank throws：First cylinder
Crank throw 1, the second cylinder crank throw 2, the 3rd cylinder crank throw 3, the 4th cylinder crank throw 4 and the 5th cylinder crank throw 5, in the flywheel 01 being connected with bent axle 03
End face on, along center circle be evenly distributed with four positioning holes, eight connecting holes and four lifting screws, in the cylindrical of flywheel 01
Flywheel gear is provided with week, diesel engine timing is corrected for turning engine 04, the end face of flywheel 01 is provided with two major parts balance weight,
With the operating of balance crankshaft 03.Fig. 2, Fig. 3-1 and Fig. 3-2 are please referred to, three round wires are carved with the root of flywheel gear,
The degree indicia being carved with round wires including the top dead centre of every cylinder crank throw, i.e. fly-wheel scale (see Fig. 3-2)；In the convex of frame 06
There is pointer 05 by screw connection on wheel side end face, refer to Fig. 4-1 and Fig. 4-2, the pointer 05 includes pointer body, pointer tip
And connecting hole, the pointer body are a bent bodies, the pointer tip and connecting hole are located at the both ends of the pointer body, the finger respectively
Pin 05 is arranged on the position (see Fig. 3-1) with a vertical 33 ° counterclockwise, and pointer tip points to fly-wheel scale, and its effect is to make
Piston keeps synchronization timing with bent axle fuel pump when diesel engine is under fire and done work.Turning engine 04, institute are installed on the support 02
The turning engine 04 stated includes motor, lotus flower axle, driving gear and gear wrench, referring to Fig. 5, the cam side bottom plate of support 02 leads to
Set screw is crossed to be connected with the motor.The driving gear at work, by gear wrench by driving gear in lotus flower
It is moved on axle and is fully engaged with the flywheel gear of flywheel 01；When diesel engine works, by gear wrench by driving gear in lotus
It is moved on floral axis and is disengaged from the flywheel gear of flywheel 01.
Typically to pass through the process of turning inside and outside circle, end face and balance weight end face in scale foregoing description flywheel 01, carve
Different types of flywheels such as five cylinders, six cylinders, seven cylinders and eight cylinders are distinguished when spending, because flat corresponding to the different flywheel of cylinder number
Weight center scale and zero-bit start index are all there is different requirements, but this tends to cause obscuring for operator,
And mistake is produced in scale is processed, and so as to which the repetition for the flywheel that causes to change the outfit because of caused by quality accident dismounts work, increase
Cost of labor and extend assembling duration.
The content of the invention
It is an object of the present invention to overcome above-mentioned the deficiencies in the prior art, there is provided one kind is used for large-scale diesel engine flywheel and carved
The method of degree, carry out fly-wheel scale available for real-time on bent axle, it can also be used to the amendment again of existing fly-wheel scale, carve full
The number of degrees of the flywheel required enough, so as to avoid flywheel from removing the complicated procedures of forming of repositioning, reduce final product quality accident.
The present invention reaches its purpose using following technical proposals：
A kind of method for large-scale diesel engine fly-wheel scale, the large-scale diesel engine include frame, support, installed in this
Bent axle on support and the flywheel being connected with the bent axle, wherein, bent axle has some crank throws, is provided with the excircle of flywheel
Flywheel gear, calibration circle is provided with the tooth root of the flywheel gear, is connected with pointer in frame, the pointer is arranged on and vertical direction
Into 33 ° counterclockwise of positions and calibration circle is pointed to, turning engine is installed on support；It is characterized in that：It is each based on the bent axle
Crank throw top dead center position and each cylinder ignition timing demands of the large-scale diesel engine, using the main bearing hole center of the support as base
Standard, drive the flywheel to rotate by the turning engine, according to each cylinder firing order, realize the top dead centre of each crank throw one by one
Position and the position mark being made on the flywheel, so as to complete the flywheel synchronization scale located space body operation,
Each crank throw top dead center position mark and circle angle index for meeting design requirement are carved on the calibration circle.
Further, described method includes following specific steps：
1) firing order according to each cylinder of the diesel engine carries out layout to the crank throw of all arrangements number, and according to each song
The angle position turned correspondingly marks out the position of each crank throw on the flywheel, by the turning engine flywheel driven with up time
Pin direction, which is rotated to the first cylinder crank throw, is in top dead center position, on the basis of the top dead center position of the first cylinder crank throw, described
Opening position on the calibration circle of flywheel with the first cylinder crank throw top dead center position into 33 ° of angles counterclockwise, engraves 0 ° of graduation mark and word
Female mark note TDC1, the position are just corresponding with the position of the pointer；
2) angle between an ignition is rotated by the turning engine flywheel driven in a clockwise direction, makes the gas of next firing order
Cylinder crank throw is in top dead center position, and the opening position corresponding with the pointer, engraves graduation mark on the calibration circle of the flywheel
With alphabetic flag TDCn, wherein, n be the firing order cylinder arrangement number；
3) repeat step 2), until sequentially completing the scale of the top dead center position mark of the cylinder crank throw of all firing orders
Work；
4) on the basis of the 0 ° of graduation mark and alphabetic flag TDC1 completed by step 1), according to design requirement in the flywheel
360 ° of evenly divideds are carved on calibration circle, and the corresponding number of degrees are engraved on integer angle position.
Further, in described step 2), angle is equal to 360 °/N between the ignition, wherein, N is the crank throw of the bent axle
Total quantity.
Further, the crank throw total quantity N of described bent axle is 5 or 6.
Further, described pointer includes pointer body, pointer tip and connecting hole, and the pointer body is a bent bodies, institute
The both ends that pointer tip and connecting hole are located at the pointer body respectively are stated, the pointer body is connected to described by screw by the connecting hole
The cam side end face of frame.
Further, described turning engine includes motor, lotus flower axle, driving gear and gear wrench, the driving gear
At work, driving gear is moved on lotus flower axle by gear wrench and engaged with the flywheel gear of the flywheel；Diesel oil
When machine works, driving gear is moved on lotus flower axle by gear wrench and is disengaged from the flywheel gear of the flywheel.
The present invention utilizes the flywheel driven rotation process of turning engine, operates flywheel on a diesel engine, realizes and flywheel is entered
The work of each crank throw top dead center position mark of row and circle angle index.
Compared with prior art, the present invention has following beneficial effect：
Production cost is reduced, avoids the quality accident that complex operations are brought, there is high excellent of easy to operate, precision
Point.The present invention is used not only for scene on a diesel engine and carries out fly-wheel scale, and can be used in existing fly-wheel scale
Again correct, carve the position mark of the number of degrees and each crank throw top dead centre of the flywheel for meeting to require on flywheel.For example,
When the flywheel misloading of six cylinders is on five cylinder diesels, six cylinder flywheels that can be by method of the present invention to having installed
Scale is remodified, reaches the scale requirement of five cylinder flywheels, so as to avoid because scale pair is not carried out flywheel on a diesel engine
The work of dismounting is repeated, rework cost is saved, avoids the waste in man-hour of doing over again.
Brief description of the drawings
Fig. 1 is the assembling schematic diagram of flywheel, bent axle and turning engine.
Fig. 2 is the assembling schematic diagram of flywheel, support and pointer.
Fig. 3-1 is the schematic diagram of flywheel.
Fig. 3-2 is the scale schematic diagram of flywheel.
Fig. 4-1 is the schematic diagram of pointer.
Fig. 4-2 is Fig. 4-1 side view.
Fig. 5 is the schematic diagram of turning engine.
Fig. 6 is the process chart of the present invention.
Fig. 7 is one of fly-wheel scale operating procedure schematic diagram of the embodiment of the present invention.
Fig. 8 is the two of the fly-wheel scale operating procedure schematic diagram of the embodiment of the present invention.
Fig. 9 is the three of the fly-wheel scale operating procedure schematic diagram of the embodiment of the present invention.
Figure 10 is the four of the fly-wheel scale operating procedure schematic diagram of the embodiment of the present invention.
Figure 11 is the five of the fly-wheel scale operating procedure schematic diagram of the embodiment of the present invention.
Figure 12 is the schematic diagram of six cylinder flywheels.
Embodiment
Its technical problem of present invention solution is located at the diesel engine stand and support it is critical that being driven by turning engine
Between flywheel rotated, each cylinder crank throw top dead centre position corresponding on flywheel is realized one by one, so as to be carved on flywheel
Go out corresponding position mark and meet that the scale of design requirement comes.
Method of the present invention for large-scale diesel engine fly-wheel scale, for realizing that the scale of correction diesel engine timing is made
Industry；It is based on each crank throw top dead center position of bent axle and each cylinder ignition timing demands of diesel engine, with the main bearing hole of support
On the basis of the heart, rotated by turning engine flywheel driven, according to each cylinder firing order, realize the top dead centre position of each crank throw one by one
Put and position mark is made on flywheel, so as to complete the flywheel synchronization scale located space body operation, on calibration circle
Carve each crank throw top dead center position mark and circle angle index for meeting design requirement.
Below using the flywheel of five cylinder diesels as embodiment, the present invention is further elaborated with reference to accompanying drawing, but can not be with
This is limited the scope of the invention.
Embodiment：
Fig. 1 and Fig. 2 are referred to, large-scale five cylinder diesel includes frame 06, support 02, on the support 02
Bent axle 03 and the flywheel 01 being connected with the bent axle 03.According to putting in order for cylinder location, the bent axle 03 has five songs
Turn：First cylinder crank throw 1, the second cylinder crank throw 2, the 3rd cylinder crank throw 3, the 4th cylinder crank throw 4 and the 5th cylinder crank throw 5.In the flywheel 01
End face on, along center circle be evenly distributed with four positioning holes, eight connecting holes and four lifting screws；In the flywheel 01
Flywheel gear is provided with excircle, diesel engine timing is corrected for turning engine 04；Two are additionally provided with the end face of the flywheel 01
Bulk balance weight, with the operating of balance crankshaft 03.Fig. 2, Fig. 3-1 and Fig. 3-2 are please referred to, is carved at the root of flywheel gear
There is calibration circle, present invention aim to the angle quarter including the top dead-center indicator per cylinder crank throw is completed on calibration circle
Spend work, i.e. fly-wheel scale operation (see Fig. 3-2).
Pointer 05 is installed on the cam side end face of the frame 06, the pointer 05 was arranged on a vertical the inverse time
The position (see Fig. 3-1) that 33 ° of pin, pointer tip point to fly-wheel scale circle, and it is to make piston with bent axle fuel pump in diesel engine that it, which is acted on,
It is under fire when doing work and keeps Timing Synchronization.Fig. 4-1 and Fig. 4-2 are referred to, the pointer 05 includes pointer body, pointer tip and connection
Hole；The pointer body is a bent bodies, and the pointer tip and connecting hole are located at the both ends of the pointer body respectively, and the pointer body passes through
Connecting hole and screw connection are in frame 06.
Turning engine 04 is installed on the support 02.Fig. 1 and Fig. 5 are referred to, described turning engine 04 includes motor, lotus flower
Axle, driving gear and gear wrench；The cam side bottom plate of the support 02 is connected by set screw with the motor.It is described
Driving gear is moved on lotus flower axle the flywheel gear with the flywheel 01 by driving gear at work, by gear wrench
Fully engagement；During diesel engine work, driving gear is moved to and the flywheel 01 on lotus flower axle by gear wrench
Flywheel gear be disengaged from.
Scale work is completed on the flywheel 01 of five cylinder diesels according to following specific steps：
1) firing order according to each cylinder of the diesel engine carries out layout, the five cylinders diesel oil to the crank throw of all arrangements number
The firing order of machine cylinder is first cylinder the-the four cylinder the-the three cylinder the-the five cylinder of the-the second cylinder, therefore each arrangement number on bent axle 03
Crank throw reach top dead centre order be：Cylinder crank throw 3- the second cylinder crank throws 2- of first the 4th cylinder crank throw 4- of cylinder crank throw 1- the 3rd
5th cylinder crank throw 5.
The position of each crank throw is correspondingly synchronously marked out on the end face of the flywheel 01 according to the angle position of each crank throw
1st, 4,3,2 and 5, see Fig. 1.
2) referring to Fig. 7, on the flywheel 01 of five cylinder diesels, using the positional symmetry center line of two balance weight as
Original bench mark, (126 ° of numerical value is five cylinder diesels to the top dead center position of 126 ° of rotation as the first cylinder crank throw 1 counterclockwise
Respective value, in other multi-cylinder diesel engines, the respective value is other numerical value)；, will for the ease of correcting the operational observations of timing
The indicating positions of pointer 05 moves 33 ° counterclockwise by the top dead center position of crank throw again, sees Fig. 3-1 and Fig. 7.
Rotated in a clockwise direction to the first cylinder crank throw 1 by the flywheel driven 01 of turning engine 04 and be in top dead centre position
Put, i.e., the top dead center position line (top dead center position and the line at support main bearing hole center) of described first cylinder crank throw 1 is perpendicular
Position, then on the basis of the top dead center position of the first cylinder crank throw 1, found on the calibration circle of the flywheel 01 and first cylinder
The top dead center position of crank throw 1 is into the position (see Fig. 7) at 33 ° of angles counterclockwise, the position just sensing position phase with the pointer 05
It is corresponding, 0 ° of graduation mark is engraved in the opening position, and English alphabet mark TDC1 is engraved, referring to Fig. 3-2.
3) by the flywheel driven 01 of turning engine 04 rotate in a clockwise direction one ignition between 72 ° of angle, make next ignition
The cylinder crank throw of order, i.e. the 4th cylinder crank throw 4 are in top dead center position, namely the top dead center position line of the 4th cylinder crank throw 4
Perpendicular position, refers to Fig. 8；Then the sensing opening position of the pointer 05 engraves 72 ° on the calibration circle of the flywheel 01
Graduation mark, and engrave alphabetic flag TDC4 with English.
72 ° of the numerical value at angle is the respective value of five cylinder diesels between the ignition, in other multi-cylinder diesel engines, the respective value
For other numerical value；Usually, angle is equal to 360 °/N between the ignition, wherein, N is the total quantity of the crank throw of the bent axle 03,
That is the number of cylinders of diesel engine.
4) from this step, continuous repeat step 3) operation, until sequentially completing the cylinder crank throw of all firing orders
Top dead center position mark scale work, the opening position corresponding with the pointer 05 on the calibration circle of the flywheel 01,
Angle index line and alphabetic flag TDCn are engraved, wherein, n is the arrangement number of the cylinder of the firing order.
In the present embodiment specifically, by the flywheel driven 01 of turning engine 04 in a clockwise direction in step 3) position
On the basis of rotate 72 ° of angle between an ignition again, make the cylinder crank throw of next firing order, i.e. the 3rd cylinder crank throw 3 is in top dead centre
Position, namely the perpendicular position of top dead center position line of the 3rd cylinder crank throw 3, refer to Fig. 9；Then in the flywheel 01
The sensing opening position of the pointer 05 engraves 144 ° of graduation marks on calibration circle, and engraves alphabetic flag TDC3 with English.
5) one is rotated again on the basis of step 4) position in a clockwise direction by the flywheel driven 01 of turning engine 04
72 ° of angle between ignition, make the cylinder crank throw of next firing order, i.e. the second cylinder crank throw 2 is in top dead center position, namely described second
The perpendicular position of top dead center position line of cylinder crank throw 2, refers to Figure 10；Then the pointer on the calibration circle of the flywheel 01
05 sensing opening position engraves 216 ° of graduation marks, and engraves alphabetic flag TDC2 with English.
6) one is rotated again on the basis of step 5) position in a clockwise direction by the flywheel driven 01 of turning engine 04
72 ° of angle between ignition, make the cylinder crank throw of next firing order, i.e. the 5th cylinder crank throw 5 is in top dead center position, namely the described 5th
The perpendicular position of top dead center position line of cylinder crank throw 5, refers to Figure 11；Then the pointer on the calibration circle of the flywheel 01
05 sensing opening position engraves 288 ° of graduation marks, and engraves alphabetic flag TDC5 with English.
7) on the basis of the 0 ° of graduation mark and alphabetic flag TDC1 completed by step 2), according to design requirement in the flywheel 01
Calibration circle on carve 360 ° of evenly divideds, and the corresponding number of degrees are engraved on integer angle position.
The present invention is used not only for five cylinder diesels, and can be used in other multi-cylinder diesel engines, such as six cylinder diesel oil
The scale operation of machine flywheel.In six-cylinder diesel engine, the total quantity of the crank throw of the bent axle 03, namely the number of cylinders N of diesel engine
=6, the numerical value at angle is 360 °/N=60 ° between ignition.Figure 12 is referred to, concrete operation step and five cylinder diesels are essentially identical,
360 ° of evenly divideds are finally carved on the calibration circle of the flywheel 01, and carve each crank throw top dead center position mark TDC1,
TDC2, TDC3, TDC4, TDC5 and TDC6.
It above are only presently preferred embodiments of the present invention, all equivalent changes and modificationss made according to the present patent application content, all
The protection domain of patent of the present invention should be turned into.
The present invention can also be used to adjust existing scale on flywheel at any angle on a diesel engine, such as flywheel
Find to misplace between scale and crank throw position after assembling, or the flywheel misloading of five cylinders is first-class to six-cylinder diesel engine, can
Reach and remodify scale, so as to avoid, because scale pair does not repeat to dismount the work of flywheel on a diesel engine, saving and do over again
Cost, avoid the waste in man-hour of doing over again.Cost of the present invention is cheap, and instrument used is simple, can assembling and setting go out it is high-precision
Flywheel, there is the advantages of simple to operate, timing positioning precision is high, positioned suitable for the scale of large-scale diesel engine flywheel.
Claims (6)
1. a kind of method for large-scale diesel engine fly-wheel scale, the large-scale diesel engine includes frame, support, installed in the machine
Bent axle on seat and the flywheel being connected with the bent axle, wherein, bent axle has some crank throws, is provided with the excircle of flywheel winged
Wheel gear, be provided with calibration circle at the tooth root of the flywheel gear, pointer be connected with frame, the pointer be arranged on a vertical
33 ° counterclockwise of position and calibration circle is pointed to, turning engine is installed on support；It is characterized in that：Based on each song of the bent axle
Top dead center position and each cylinder ignition timing demands of the large-scale diesel engine are turned, using the main bearing hole center of the support as base
Standard, drive the flywheel to rotate in a clockwise direction to the first cylinder crank throw by the turning engine and be in top dead center position, with this
On the basis of the top dead center position of first cylinder crank throw, with the first cylinder crank throw top dead center position into inverse on the calibration circle of the flywheel
The opening position at 33 ° of angles of hour hands, 0 ° of graduation mark and alphabetic flag TDC1 are engraved, then according to each cylinder firing order, realized one by one
The top dead center position of each crank throw and the position mark being made on the flywheel, so as to complete the flywheel synchronization scale positioning
Main body operate, carved on the calibration circle meet each cylinder ignition timing demands each crank throw top dead center position mark and
Circle angle index.
2. the method according to claim 1 for large-scale diesel engine fly-wheel scale, it is characterised in that：Described method bag
Include following specific steps：
1) firing order according to each cylinder of the diesel engine carries out layout to the crank throw of all arrangements number, and according to each crank throw
Angle position correspondingly marks out the position of each crank throw on the flywheel, by the turning engine flywheel driven with side clockwise
Top dead center position is in rotation to the first cylinder crank throw, on the basis of the top dead center position of the first cylinder crank throw, in the flywheel
Calibration circle on opening position with the first cylinder crank throw top dead center position into 33 ° of angles counterclockwise, engrave 0 ° of graduation mark and letter marked
Note TDC1, the position are just corresponding with the position of the pointer；
2) angle between an ignition is rotated by the turning engine flywheel driven in a clockwise direction, makes the cylinder of next firing order bent
Turn and be in top dead center position, the opening position corresponding with the pointer, engraves graduation mark and word on the calibration circle of the flywheel
Female mark remembers TDCn, wherein, n is the arrangement number of the cylinder of the firing order；
3) repeat step 2), until sequentially completing the scale work of the top dead center position mark of the cylinder crank throw of all firing orders
Make；
4) by step 1) complete 0 ° of graduation mark and alphabetic flag TDC1 on the basis of, according to design requirement the flywheel scale
360 ° of evenly divideds are carved on circle, and the corresponding number of degrees are engraved on integer angle position.
3. the method according to claim 2 for large-scale diesel engine fly-wheel scale, it is characterised in that：Described step 2)
In, angle is equal to 360 °/N between the ignition, wherein, N is the total quantity of the crank throw of the bent axle.
4. the method according to claim 3 for large-scale diesel engine fly-wheel scale, it is characterised in that：Described bent axle
Crank throw total quantity N is 5 or 6.
5. the method according to claim 1 for large-scale diesel engine fly-wheel scale, it is characterised in that：Described pointer bag
Pointer body, pointer tip and connecting hole are included, the pointer body is a bent bodies, and the pointer tip and connecting hole are located at the pointer respectively
The pointer body is connected to the cam side end face of the frame by the connecting hole by the both ends of body, screw.
6. the method according to claim 1 for large-scale diesel engine fly-wheel scale, it is characterised in that：Described turning engine
Including motor, lotus flower axle, driving gear and gear wrench, the driving gear at work, by gear wrench by driving tooth
Wheel is moved on lotus flower axle to be engaged with the flywheel gear of the flywheel；When diesel engine works, by gear wrench by driving tooth
Wheel is moved on lotus flower axle to be disengaged from the flywheel gear of the flywheel.
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| CN201510724532.4A CN105351099B (en) | 2015-10-30 | 2015-10-30 | A kind of method for large-scale diesel engine fly-wheel scale |
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| CN201510724532.4A CN105351099B (en) | 2015-10-30 | 2015-10-30 | A kind of method for large-scale diesel engine fly-wheel scale |
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| CN105351099B true CN105351099B (en) | 2017-12-26 |
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| CN109404157B (en) * | 2018-11-20 | 2020-06-30 | 中国石油天然气集团有限公司 | Engine flywheel housing observation window and turning method |
| CN111102029A (en) * | 2019-12-27 | 2020-05-05 | 合肥云内动力有限公司 | Auxiliary tool for adjusting valve clearance |
| CN113864047A (en) * | 2021-06-18 | 2021-12-31 | 广州柴油机厂股份有限公司 | Method for determining top dead center mark of flywheel |
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| CN104763488A (en) * | 2015-01-30 | 2015-07-08 | 奇瑞汽车股份有限公司 | Optical engine timing mechanism, optical engine timing method and optical engine |
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| JP3053254B2 (en) * | 1991-05-17 | 2000-06-19 | 三信工業株式会社 | Engine ignition timing adjustment device |
| US20060113999A1 (en) * | 2004-11-30 | 2006-06-01 | Paul Brothers | Precision timing light for internal combustion engine and method of use |
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| CN202991319U (en) * | 2012-12-17 | 2013-06-12 | 青岛海之冠汽车配件制造有限公司 | Novel ignition control flywheel |
| CN204027481U (en) * | 2014-08-02 | 2014-12-17 | 安徽天利动力股份有限公司 | The cubing of each bolt hole position of a kind of quick test flywheel and top dead centre scale |
| CN104763488A (en) * | 2015-01-30 | 2015-07-08 | 奇瑞汽车股份有限公司 | Optical engine timing mechanism, optical engine timing method and optical engine |
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