CN103423373A - Flywheel having starter gearing structure on external peripheral part - Google Patents

Flywheel having starter gearing structure on external peripheral part Download PDF

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Publication number
CN103423373A
CN103423373A CN2013101748246A CN201310174824A CN103423373A CN 103423373 A CN103423373 A CN 103423373A CN 2013101748246 A CN2013101748246 A CN 2013101748246A CN 201310174824 A CN201310174824 A CN 201310174824A CN 103423373 A CN103423373 A CN 103423373A
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CN
China
Prior art keywords
flywheel
starter
character
toothing
basic element
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Granted
Application number
CN2013101748246A
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Chinese (zh)
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CN103423373B (en
Inventor
H·蒙德
C·斯特罗齐克
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Publication of CN103423373A publication Critical patent/CN103423373A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/022Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
    • F02N15/025Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the friction type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears

Abstract

The invention relates to a flywheel which is used in a driving system of a locomotive having an internal combustion engine and having a starter gearing structure on an external peripheral part. The invention proposes that the axial end of the starter gearing structure has an inverted rounded contour on at least one side of the flywheel.

Description

Flywheel with the starter toothing on circumference
Technical field
The present invention relates to a kind of flywheel used for the drivetrain of the Motor Vehicle having internal-combustion engine, wherein, described flywheel has the starter toothing on circumference.The invention still further relates to a kind of friction clutch used for the drivetrain of the Motor Vehicle having internal-combustion engine, wherein, described friction clutch has flywheel.Finally, the invention still further relates to a kind of application of flywheel, for carry out the internal-combustion engine of Starter motor-car drivetrain by starter.
Background technique
This flywheel at present according to standard by the foundry goods manufacture and supplement completely by gear ring individually, the toothing on the circumference of described gear ring forms through milling.The foundry goods flywheel consists of spray in principle, by described spray, manufactures finished parts.Spray must be cut processing (turning, milling).Therefore cause a large amount of process step and related to this expending and corresponding machine production capacity and cost.In addition, described gear ring is manufactured individually.Described gear ring, before can being assembled, must be heated to time on the basic element of character at hot charging.At this, also cause expending accordingly.
DE 10 2,008 057 649 A1 disclose a kind of described similar flywheel.This flywheel comprises as the basic element of character of diskware shaping, axially is close to the miscellaneous part (primary components, secondary parts) of this basic element of character extension and is fixed on without relative rotation the gear ring on diskware, and the starter toothing on the circumference of flywheel is configured on described gear ring.The toothing of the starter small gear of starter can join in described toothing and drive described flywheel so that engine starting.In described document, described flywheel is described to simple substance amount flywheel or double mass flywheel.
Summary of the invention
Task of the present invention is to provide some measures, and described measure allows at flywheel, particularly in the situation that the flywheel of friction clutch is simplified the joint of starter small gear.
According to the present invention, described task solves by claim 1,9 and 10 feature.Provide in the dependent claims preferred configuration of the present invention, described dependent claims can individually or in combination be expressed respectively viewpoint of the present invention.
In flywheel of the present invention, propose, the axial terminal section of starter toothing has the profile of rounding at least one side of described flywheel.That is to say, the starter toothing this aspect its axial terminal profile without seamed edge.At this, following radius particularly only appears, the radius of described radius be more than or equal to described starter toothing tooth the facewidth 1/20th.The starter toothing is configured in the outer circumferential area of respective members of flywheel at this.It is below also referred to as the gear ring zone.
In principle, the starter toothing with profile of rounding for example can be set up/be shaped by means of the conventional method that forms gear ring on the excircle of the annular construction member at flywheel, namely for example by milling or similar cutting working method.But according to a preferred embodiment of the present invention, propose, described starter toothing is configured to the starter toothing by cold rolling manufacture.With cutting working method by contrast, cold rolling is forming method.Cold rolling toothing has the coaxality higher than the toothing precision of milling.
This cold rollingly preferably carry out on the excircle in respective members by means of rolling tool at this.By cold rolling set up toothing before, this member has had corresponding rounding profile at least one side in the axial terminal section of the excircle for the setting of starter toothing.Due to by the cold rolling starter toothing of then setting up, avoided the formation of crackle and overlap (or other Sharp edges).In addition, cold-rolling process also allows to construct the starter toothing on the member consisted of other materials and with other shapes.
Obtain following advantage: the flywheel cost is low, can and expend with the least possible parts and manufacture and no longer need cutting type reprocessing.By the rounding profile of (this side should be engage side, and the starter small gear is from this side engagement) on a side later, avoided the appearance of overlap, described overlap otherwise must mechanically be reprocessed.
A preferred configuration according to the present invention proposes, and flywheel forms or at least jointly forms by the basic element of character of colyliform, and the described basic element of character directly has described starter toothing on its excircle.The described basic element of character is disk component particularly, the parts of dish type basically namely, and it does not have center Chuan Kou (or without central hole) or has one wears mouthful (or a hole), and this diameter of wearing mouthful is more much smaller than the height that surrounds this edge of wearing mouthful.In other words, this disk component be not independent, for the starter gear ring on other members that form flywheel and should be fixed on/be fixed on this gear ring of carrying.
The basic element of character that the described basic element of character particularly is formed from steel (steel-basic element of character).In the situation that this basic element of character or disk component, starter toothing preferable configuration is the starter toothing by means of cold rolling manufacture.If flywheel has other (structure) parts or a plurality of other (structure) parts, they can certainly be formed from steel.
Advantageously propose, described flywheel has other parts in addition, and described other component axial ground remains on the described basic element of character anti-lostly.Described other parts particularly by means of ca(u)lk anti-lost remain on the basic element of character of described colyliform.Described other parts particularly have the function of oneself.By anti-lost, kept, this multi-part type flywheel can well be assemblied in drivetrain.When this assembles, described other parts preferably are fixed on the described colyliform basic element of character.Thus, described other parts are arranged for preferably and are fixed on the basic element of character of described colyliform when the assembling flywheel.
According to another preferred configuration of the present invention, the side be outwardly directed to of described other parts is formed for friction clutch, particularly can be fixed on the rubbing surface of the clutch disk of the friction clutch on described flywheel.The described function of described other member or at least one in described function are to form rubbing surface.
According to another preferred configuration of the present invention, the described basic element of character has the spiro connection structure for being spirally connected with described friction clutch, wherein, described other parts are worn mouth and are thoroughly worn, the threaded of device of being spirally connected is worn mouthful the ground effect through described, and described other parts are fixed between the basic element of character and friction clutch to clamping in the situation that the described basic element of character and friction clutch are spirally connected.
Particularly propose, described starter toothing is constructed and is helped slideway in the zone of axial terminal section.This helps slideway for allowing the starter small gear engage better.
According to of the present invention one preferred embodiment, the axial terminal section of described starter toothing with respect to the axial tooth face in the gear ring zone of the described toothing of carrying of described flywheel axially to bias internal.Thus, the starter small gear later just engages.
According to of the present invention another preferred embodiment, the corresponding flank of tooth of the tooth of described starter toothing is protruding spherical formation in a circumferential direction.This spherical flank of tooth automatically occurs by means of cold rolling manufacture toothing the time.So the corresponding anti-flank of tooth is negative to be formed spherically.While in drivetrain, in conjunction with the starter with starter small gear, using this flywheel, should be noted, the starter small gear drives described flywheel by the force closure on the described spherical flank of tooth.Corresponding sense of rotation is predetermined by the sense of rotation of the internal-combustion engine in drivetrain.
Advantageously propose, described flywheel structure is double mass flywheel.
Friction clutch of the present invention has above-mentioned flywheel.Described flywheel preferably includes the described colyliform basic element of character and described other parts with the starter toothing on circumference, and the latter is formed for the rubbing surface of the clutch disk of friction clutch.Described friction clutch usually is connected between the bent axle and transmission input shaft of internal-combustion engine (explosive motor) in the Motor Vehicle drivetrain.Flywheel is herein on crankshaft side.The miscellaneous part of clutch (back-pressure plate, clutch disk, clutch pressure plate and segregating unit) is connected on the direction of transmission input shaft.
According to the present invention, with above-mentioned flywheel, proposing when by starter, carrying out the internal-combustion engine of Starter motor-car drivetrain, the starter small gear of described starter can join to or be engaged on the following side of described flywheel, on described side, the axial terminal section of the starter toothing of described flywheel has the profile of rounding.
The starter toothing of the flywheel used at this particularly by the starter toothing of cold rolling manufacture.In the situation that this toothing of the starter by cold rolling manufacture, the corresponding flank of tooth of tooth forms in a circumferential direction spherically.So the corresponding anti-flank of tooth is negative to be formed spherically.When the starter in conjunction with having the starter small gear is used this flywheel, should be noted, the starter small gear drives described flywheel by the force closure on the described spherical flank of tooth.
The accompanying drawing explanation
By means of the exemplary elaboration the present invention of preferred embodiment, wherein, the feature the following describes not only individually but also is in combination expressed viewpoint of the present invention with reference to the accompanying drawings.In the accompanying drawings:
Fig. 1 illustrates the basic element of character of colyliform, has the starter toothing of flywheel according to a first advantageous embodiment of the invention;
Fig. 2 illustrates the basic element of character is become to flywheel with other part bonding;
Fig. 3 illustrates the sectional view of the basic element of character in Fig. 2 and other parts; With
Fig. 4 illustrates the basic element of character and is shown specifically the plan view of tooth of the starter toothing of the basic element of character.
Embodiment
Fig. 1 illustrates the colyliform basic element of character 10 of flywheel 12, and it has the starter toothing 14 on circumference.The described basic element of character 10 directly has described starter toothing 14 on its excircle.This flywheel 12 uses in the drivetrain (not shown) of the Motor Vehicle with internal-combustion engine.The described basic element of character 10 is similar to automobile rim, namely is similar to the remainder without automobile tire of wheel.It has the zone line 20 of inner region 18 and the spoke shpae of annular exterior domain 16, flange ring form, and described zone line couples together described inner region and described exterior domain.The zone line 20 of described spoke shpae forms planarly, wherein, in these between zone retain respectively between 20 without the space of material or wear mouth.Described inner region 18 has the hole 22 for assembling flywheel 12.Described exterior domain 16 has the hole distributed on circumference on a side 24 of the described basic element of character 10, and described hole has internal thread, the spiro connection structure 26 that described internal thread is spirally connected as the miscellaneous part for drivetrain, particularly friction clutch.In addition, described exterior domain 16 has starter toothing 14 and therefore is also referred to as the gear ring zone.
Due to the toothing 14 on excircle, the described basic element of character 10 has the shape of cylindrical gears.The basic element of character 10 single type ground of described colyliform form.In other words, the zone all above-mentioned of the described basic element of character 10 (exterior domain or gear ring zone, inner region and zone line) 16,18,20 all interconnects single type.The shown basic element of character 10 is the basic elements of character 10 that are formed from steel.Starter toothing 14 on excircle is configured to the starter toothing by means of cold rolling manufacture.
Now, on the right side of Fig. 1, the axial terminal section 28 of starter toothing 14 is shown with the sectional view of the axis 30 through flywheel 12.At this, shown sectional view is just through the tooth 32(of described starter toothing 14 rather than through backlash).Dotted line means this detailed drawing comes from which zone of the whole basic element of character 10.The axial terminal section 28 of described starter toothing 14 on the side 24 of the described basic element of character 10 (this side as be also the side 24 of flywheel 12 shown in Fig. 2 and 3) has the profile 34 of rounding later.The profile 34 of described rounding forms and helps slideway 36(" lead-in chamfered " in the zone of corresponding axial terminal section 28).In addition, the described axial terminal section 28 of described starter toothing 14 is with respect to described exterior domain 16(gear ring zone) axially inwardly dislocation of axial side wall, obtain thus a retraction section 38.Each in these three measures (profile of rounding, lead-in chamfered, retraction section) has been simplified engage (or the engagement) with the starter small gear (not shown) of flywheel 12 interactional starters, and described starter is for internal-combustion engine (explosive motor) starting that makes traffic tool drivetrain/start.
By in the situation that form the rounding profile 34 just existed in the axial terminal section in zone of starter toothing 14 after the basic element of character 10 before building starter toothing 14, avoided the formation of crackle and overlap (or other Sharp edges).This overlap makes the starter small gear obviously become difficult from the joint of this side.
Mention, starter toothing 14 is configured to the starter toothing by cold rolling manufacture.Cold rolling toothing has the coaxality higher than the toothing precision of milling.This cold rollingly preferably carry out on the excircle of the basic element of character 10 by means of rolling tool.
Fig. 2 also illustrates other parts 40 of flywheel 12 except the basic element of character 10 in left side.These other parts 40 form basically circlewise, are configured to or rather annular sheet material part.It externally has a plurality of holes that mouthful 42(connects or rather of wearing in zone), the described mouth layout corresponding to the spiro connection structure 26 in the basic element of character 10 aspect layout of wearing.In annular inner region, described other parts have smooth face 46 on a side 44.This face 46 can be used as for friction clutch, particularly can be fixed on/be fixed on the rubbing surface 48 of the clutch disk of the friction clutch on flywheel 12.In this application, it forms the back-pressure element with respect to the pressure strip (not shown) of friction clutch.On annular inner circumference, described other parts have a plurality of (at these three) deviates from the contact pin 50 that described side 44 is pointed to.Described other parts 40 also are formed from steel.
On the right side of Fig. 2, the corresponding seamed edge 56(that described other parts 40 hook the described basic element of character 10 by means of each hook nose 52 on the free end 54 of each contact pin 50 is shown in Figure 3).In described example, the logical ca(u)lk of described nose 52 section 58 obtains its final maintenance shape and holding position.Described other parts 40 by described ca(u)lk section 58 anti-lost remain on the basic element of character 10.Therefore, this accompanying drawing shows complete flywheel 12.Basic element of character 10(is as described) there is the mechanism 26 that is spirally connected for being spirally connected with friction clutch, wherein, described other parts 40 are worn thoroughly by a plurality of mouths 42 of wearing, and the threaded of the clutch side of the device that is spirally connected (as the threaded structure) acts on through the described mouthful ground of wearing.Thus, in the situation that the basic element of character 10 is spirally connected with friction clutch, described other parts 40 clamp ground, are fixed between the basic element of character 10 and friction clutch without relative rotation.
Fig. 3 illustrates the basic element of character 10 and keeps, described other parts 40 thereon with sectional view.Can obviously find out described ca(u)lk section 58, utilize described ca(u)lk section that described other parts 40 are remained on the basic element of character 10.In described contact pin 50(Fig. 3, a contact pin only is shown) be coupled in the basic element of character 10 and described nose 52 is responsible for force closure and the sealed connection of shape between these parts 10,40, as for ca(u)lk, (English is: Press-fit stem) typical.Cause plastic deformation in the ca(u)lk process.The distortion of the free end 54 of described contact pin is carried out as follows, that is, seamed edge 56 and nose 52 can not get loose ground wedging mutually.Other details that can find out in Fig. 3 can be found out in accompanying drawing in front, therefore here no longer describe.Cause the directed toward each other of described two parts 10,40 by described ca(u)lk.
Finally, Fig. 4 illustrates the basic element of character known from the accompanying drawing of front 10 in left side.Illustrate described basic element of character 10(or flywheel 12 on right side with exemplary details) the plan view of tooth 32 of starter toothing 14.Line of vision be radially on axial 30 direction towards the tooth 32 of starter toothing 14.
The flank of tooth 60,62 that is parallel to described axis 30 extensions is not straight line or smooth at this in its longitudinal extension, but has convexity.A flank of tooth 60 of each tooth 32 (or the protruding ground of drum or projectedly) spherically forms, and opposed another flank of tooth 62 negative spherically (or hollowly or recessed ground) forms.In the situation that, by the starter toothing 14 of cold rolling manufacture, always guarantee the ball structure of one of described flank of tooth 60.
Now, in the situation that flywheel 12 be should be noted for the internal-combustion engine by starter Starter motor-car drivetrain, the tooth of starter small gear meshes with the tooth 32 of starter toothing 14 on a sense of rotation, wherein, the spherical flank of tooth 60 of the tooth 32 by starter toothing 14 carries out the power transmission.
Obtain following important insight:
For can in the situation that do not use optional feature for example rivet even screw two of flywheel 12 single parts 10,40(are had to the basic element of character 10 of cold rolling toothing 14 and other have parts 40 for the rubbing surface 48 of clutch disk) centrally interconnect, these two parts 10,40 are provided with ca(u)lk section 58 or the sealed connection of other shapes, on they directly engage in assembling.
At this, without the flexible program cut, be again preferred, because can save the additional boring for rivet, also can save for the fixedly thread cutting of the screw of possibility of conduct.By projection, particularly three projections of 120 ° or alternatively by being pressed into the fitting pin in the basic element of character 10 or carrying out centering in advance with similar type of mutually staggering.This has advantages of manufactures and the mounting technology aspect, and these advantages just have and affect for the cost of whole system again.
Suitably selected aspect the protuberance shape of described toothing 14 in the flank lines of its function, generation during fabrication, make it can use in conjunction with the starter small gear on favourable meaning for later function.The positive convexity of the flank of tooth 60 with together with the related to this negative convexity of the flank of tooth 62 of dry running carry out well the moment transmission while allowing at cranking internal combustion engine.
The reference number table
10 basic elements of character
12 flywheels
14 starter toothings
16 exterior domains
18 inner regions
20 zone lines
22 holes
24 sides
26 spiro connection structures
28 axial terminal sections
30 axis
32 teeth
The profile of 34 roundings
36 help slideway
38 retraction sections
40 other parts
42 wear mouth
44 sides
46 smooth faces
48 rubbing surfaces
50 contact pin
52 noses
54 free ends
56 seamed edges
58 ca(u)lk sections
60 flank of tooth
62 flank of tooth

Claims (10)

1. a flywheel (12), for using in the drivetrain of the Motor Vehicle with internal-combustion engine, there is the starter toothing (14) on circumference, it is characterized in that, the axial terminal section (28) of described starter toothing (14) has the profile (34) of rounding at least one side (24) of described flywheel (12).
2. flywheel according to claim 1, is characterized in that, described starter toothing (14) is configured to the starter toothing by cold rolling manufacture.
3. flywheel according to claim 1 and 2, it is characterized in that the basic element of character (10) colyliform, that form or at least jointly form described flywheel (12), steel-basic element of character particularly, the described basic element of character directly has described starter toothing (14) on its excircle.
4. flywheel according to claim 3, other parts (40) that it is characterized in that described flywheel (12), described other component axial ground remain on anti-lostly the described basic element of character (10) upper, particularly by means of ca(u)lk anti-lost remain on the described basic element of character (10).
5. flywheel according to claim 4, is characterized in that, the side be outwardly directed to of described other parts (40) is formed for friction clutch, particularly can be fixed on the rubbing surface (48) of the clutch disk of the friction clutch on described flywheel (12).
6. flywheel according to claim 5, it is characterized in that, the described basic element of character (10) has the spiro connection structure (26) for being spirally connected with described friction clutch, wherein, described other parts (40) are worn mouthful (42) and are thoroughly worn, be spirally connected the threaded of device through the described mouth of wearing, and described other parts (40) in the situation that being spirally connected, the described basic element of character (10) and friction clutch are fixed between the basic element of character (10) and friction clutch to clamping.
7. according to the described flywheel of any one in claim 1 to 6 (12), it is characterized in that, the axial terminal section (28) of described starter toothing (14) with respect to the axial tooth face in the gear ring zone of the described toothing of carrying of described flywheel (12) axially to bias internal.
8. according to the described flywheel of any one in claim 1 to 7, it is characterized in that, in a circumferential direction, the protruding spherical formation of the corresponding flank of tooth (60) of the tooth (32) of described starter toothing (14).
9. a friction clutch, use for the drivetrain of the Motor Vehicle having internal-combustion engine, and wherein, described friction clutch has according to the described flywheel of any one in claim 1 to 8 (12).
10. according to the application of the described flywheel of any one in claim 1 to 8 (12), for carry out the internal-combustion engine of Starter motor-car drivetrain by starter, wherein, the starter small gear of described starter can join to or be engaged on the following side (24) of described flywheel (12), on described side, the axial terminal section (28) of the starter toothing (14) of described flywheel (12) has the profile (34) of rounding.
CN201310174824.6A 2012-05-14 2013-05-13 Flywheel with the starter toothing on circumference Expired - Fee Related CN103423373B (en)

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DE102012207979 2012-05-14
DE102012207979.3 2012-05-14

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CN103423373B CN103423373B (en) 2017-06-16

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015209564A1 (en) * 2015-05-26 2016-12-01 Schaeffler Technologies AG & Co. KG mass flywheel
CN105508503B (en) * 2016-01-20 2018-07-06 昆山铁生机械有限公司 Automobile flywheel and processing method
FR3082259B1 (en) * 2018-06-08 2020-06-26 Valeo Embrayages TWO-MASS FLYWHEEL

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2374571A1 (en) * 1976-12-16 1978-07-13 Paris & Du Rhone Pinion for IC engine starter - has bevelled teeth which mesh with flywheel of engine with interference reduced by chamfered rear edges
US5279182A (en) * 1989-08-25 1994-01-18 Kabushiki Kaisha Daikin Seisakusho Cooling mechanism for built-up flywheel
JPH06235374A (en) * 1992-12-15 1994-08-23 Ingersoll Rand Co Cam tooth type starter pinion
JPH10196733A (en) * 1997-01-08 1998-07-31 Toyota Motor Corp Flywheel
CN1456799A (en) * 2002-05-10 2003-11-19 三菱电机株式会社 Starter
CN101169092A (en) * 2007-11-23 2008-04-30 隆鑫工业有限公司 Gasoline engine electric-starting flywheel
CN201241921Y (en) * 2008-08-15 2009-05-20 李志强 Dry friction type double clutch of single pressure disc
CN101476613A (en) * 2007-11-23 2009-07-08 卢克摩擦片和离合器两合公司 Flywheel
CN202203363U (en) * 2011-06-28 2012-04-25 上海法雷奥汽车电器系统有限公司 Driving gear and starter adopting same

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2374571A1 (en) * 1976-12-16 1978-07-13 Paris & Du Rhone Pinion for IC engine starter - has bevelled teeth which mesh with flywheel of engine with interference reduced by chamfered rear edges
US5279182A (en) * 1989-08-25 1994-01-18 Kabushiki Kaisha Daikin Seisakusho Cooling mechanism for built-up flywheel
JPH06235374A (en) * 1992-12-15 1994-08-23 Ingersoll Rand Co Cam tooth type starter pinion
JPH10196733A (en) * 1997-01-08 1998-07-31 Toyota Motor Corp Flywheel
CN1456799A (en) * 2002-05-10 2003-11-19 三菱电机株式会社 Starter
CN101169092A (en) * 2007-11-23 2008-04-30 隆鑫工业有限公司 Gasoline engine electric-starting flywheel
CN101476613A (en) * 2007-11-23 2009-07-08 卢克摩擦片和离合器两合公司 Flywheel
CN201241921Y (en) * 2008-08-15 2009-05-20 李志强 Dry friction type double clutch of single pressure disc
CN202203363U (en) * 2011-06-28 2012-04-25 上海法雷奥汽车电器系统有限公司 Driving gear and starter adopting same

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DE102013207499A1 (en) 2013-11-14

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Granted publication date: 20170616