WO2011113412A2 - Permanent eingespurter starter mit einem trockenen freilauf - Google Patents
Permanent eingespurter starter mit einem trockenen freilauf Download PDFInfo
- Publication number
- WO2011113412A2 WO2011113412A2 PCT/DE2011/000196 DE2011000196W WO2011113412A2 WO 2011113412 A2 WO2011113412 A2 WO 2011113412A2 DE 2011000196 W DE2011000196 W DE 2011000196W WO 2011113412 A2 WO2011113412 A2 WO 2011113412A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cage
- flange
- plastic parts
- clamping body
- freewheel
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
- F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
- F16D43/16—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with clutching members having interengaging parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
- F02N15/023—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the overrunning type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
- F02N15/025—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the friction type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
- F02N15/026—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the centrifugal type
Definitions
- the invention relates to a permanently interlocked starter with a dry freewheel and is used in particular in internal combustion engines and serves to decouple crankshaft or primary mass and starter ring gear during operation by the freewheel.
- the freewheel works in such a way that it transmits the speed between crankshaft or primary mass and starter ring gear or starter shaft up to a certain moment and no torque is transmitted at an increasing moment.
- a starter freewheel for an electric starting device for internal combustion engines for the temporary coupling of the starter shaft with the crankshaft is also known from DE 100 19 593 A1.
- the starter clutch comprises an inner ring coupled to the crankshaft, an outer ring coupled to the starter shaft and sprags effective for startup operation for frictional engagement of the two rings and a cage for the sprags and means for friction or positive engagement of the cage with the inner ring.
- In overtaking the clamp body are pivoted under the action of centrifugal force such that they are separated from the outer ring.
- the clamping body are pivotally mounted with leaf springs in a cage support ring.
- the clamping body of a freewheel can also be acted upon by means of a leg spring.
- a disadvantage of these systems is that the prestressing of the clamping body is carried out by means of assembly-consuming and / or strength-critical springs, whereby a large number of parts which assume different functions (centering, spring installation, etc.) are required.
- Another disadvantage is that it can come by the springs used to oscillations of the clamping body by the sometimes very high centrifugal forces acting on the clamp body, which has an overall negative effect on the life of the freewheel.
- the object of the invention is the construction of a dry freewheel, which is easy to install and robust and has a reduced number of parts, the component wear and noise is low and the structural design ensures that the torque flow from the starter to the engine as soon as the engine automatically runs, is interrupted and the restart of the engine below a limit speed is possible at any time, for which the clamp body in a defined speed range off or must swing. Furthermore, the cage, in which the clamp body are mounted centered to the crankshaft and at the same time be connected with friction.
- the springs are compression springs.
- the compression springs are based on plastic parts and are guided laterally / axially fixed by means of the plastic parts.
- the plastic parts simultaneously center the cage with respect to the inner ring on the crankshaft.
- the cage has two side plates and the plastic parts also cause a clamping of the cage by acting on the side panels of the cage bias.
- a compression spring bears against the plastic part on the one hand and is connected to the other in particular via a pressure piece with the clamping body, wherein the pressure piece is advantageously rotatably mounted in the clamping body.
- the pressure piece When rotating the clamping body, the pressure piece is thereby pivotally mounted, wherein the compression spring is actuated substantially in parallel.
- Another function of the two plastic parts is that they prevent slipping out of the compression spring under centrifugal force in the pivoted end position of the clamp body.
- the two side panels of the cage are fixedly connected to each other via spacer bolts, on which the clamping bodies are pivotally received.
- the plastic parts are fixed, with friction surfaces are located on the plastic parts, which have contact with the flange and thereby frictionally connect the cage to the flange.
- the dry freewheel Due to the inventive design of the dry freewheel for a meshed starter vibrations and noise are reduced and increases the life in particular by the use of the compression spring. Furthermore, the dry freewheel has a robust construction with a small number of parts, which is easy to install.
- Figure 2 shows the section through a cage with plastic parts
- FIG. 3 shows a detailed view of the cage centering
- Figure 4 shows the representation of the clamping mechanism in the front view with it in
- Figure 5 shows the representation of the clamping mechanism in the front view with raised clamping bodies.
- FIG. 1 the longitudinal section of the freewheel is shown.
- the starter not shown here meshes with the ring gear 1, which is connected to the drive plate 2 arbitrarily.
- the drive plate 2 with the ring gear 1 about the axis A is rotatably mounted on the engine, not shown.
- a flange 4 is secured against rotation on the crankshaft, also not shown here.
- the coupling between the flange 4 and the drive plate 2 via any number of clamping body 5.
- the clamping body 5 should rotate from a certain speed in the nip and so lose the direct contact with drive plate 2 and flange 4. This should be speed dependent.
- the flange 4 rotates at the engine speed.
- the starter stops turning and the drive plate 2 also stops. It is therefore a necessity that the clamp bodies 5 are taken in some form from the flange 4 to get the centrifugal force necessary for the twisting.
- the function of the coupling of clamping body 5 and flange 4 takes over a cage.
- the cage consists of two side plates 6, which are arranged on both sides of the clamping bodies and fixedly connected to one another via spacer bolts 7. At the facing each other inner sides of the side panels 6 thin-walled plastic parts 8 are attached.
- the representation of the cage with the plastic parts 8 and the clamping bodies 5 is shown in Figures 2 and 3.
- the plastic parts 8 take over several functions simultaneously. On the one hand they center the entire cage on the flange 4, on the other hand there are friction surfaces 10 on the two plastic parts 8 in the direction of the flange 4. These have contact with the flange 4 and are subjected to a force. Thus, the cage is frictionally connected to the flange 4.
- the clamping force is generated by biasing the side plates 6 and is lovingly adjustable.
- the plastic parts 8, which are arranged on both sides of the clamping body 5 form a lateral guide for the clamping body.
- the position of the clamping body 5 is defined by the spacer pin 7, around which the clamping body 5 is pivotally mounted.
- FIG. 4 shows the illustration of the clamping mechanism in the front view with clamping bodies 5 in engagement. Since the center of gravity 14 of the clamping body 5 is deliberately outside the axis of rotation of the clamping body 5, the rotational movement of the internal combustion engine generates a moment which leads to the rotation of the clamping body 5. A stop pin 15 defines the end position of this twisting movement. Thus, the clamping body 5 in a certain speed range off or pivots, the clamping body 5 is biased by the compression spring 13. About the compression spring 13 and the position of the center of gravity 14 and the mass of the clamp body Abhebe- or application speed is defined.
- the compression spring 13 is on the one hand with a system 12 on the plastic part 8, on the other hand, it is connected via a pressure piece 16 with the clamping body 5.
- the pressure piece 16 is rotatably mounted in the clamping body 5 via a bearing 17. Thus, upon rotation of the clamping body 5, the pressure piece 16 pivot and the compression spring 13 is actuated in parallel as far as possible.
- FIG. 1 The illustration of the clamping mechanism in the front view with raised clamping bodies is shown in FIG. In this swiveled end position of the clamp body 5 prevent the two plastic parts 8 and the pressure member 16 slipping out of the compression spring 13 under centrifugal force.
- the plastic parts at the same time take over the centering of the cage relative to the inner ring (flange) on the crankshaft and the clamping of the cage.
- the clamping force is created by preloading the side panels of the cage.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112011100937.2T DE112011100937B4 (de) | 2010-03-18 | 2011-02-28 | Permanent eingespurter Starter mit einem trockenen Freilauf |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010011814.1 | 2010-03-18 | ||
DE102010011814 | 2010-03-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011113412A2 true WO2011113412A2 (de) | 2011-09-22 |
WO2011113412A3 WO2011113412A3 (de) | 2012-06-28 |
Family
ID=44310934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2011/000196 WO2011113412A2 (de) | 2010-03-18 | 2011-02-28 | Permanent eingespurter starter mit einem trockenen freilauf |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102011012603A1 (de) |
WO (1) | WO2011113412A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014109544A1 (de) | 2014-06-30 | 2015-12-31 | Linde Material Handling Gmbh | Schwungrad mit Anlasserzahnkranz |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10019593A1 (de) | 2000-04-20 | 2001-10-25 | Bayerische Motoren Werke Ag | Anlasserfreilauf |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE409374C (de) * | 1923-08-14 | 1925-02-05 | Maybach Motorenbau G M B H | Freilaufkupplung, insbesondere fuer Anlassgetriebe von Kraftfahrzeugen |
DE1264886B (de) * | 1966-04-13 | 1968-03-28 | Stieber Rollkupplung K G | Kaefig fuer eine Freilaufkupplung |
DE1915099B2 (de) * | 1969-03-25 | 1971-12-23 | Ringspann Albrecht Maurer Kg, 6380 Bad Homburg | Einbausatz mit in einem aus miteinander verrasteten gliedern gebildeten kaefig unverlierbar gehaltenen klemm stuecken fuer eine freilaufkupplung |
FR2093188A5 (de) * | 1970-06-04 | 1972-01-28 | Skf Cie Applic Mecanique | |
DE2437412C3 (de) * | 1974-08-02 | 1982-02-11 | Zuleger, Josef, Ing.(grad.), 6903 Neckargemünd | Klemmkörper-Freilaufkupplung aus einem handelsüblichen Rillenkugellager |
IT1140291B (it) * | 1981-11-24 | 1986-09-24 | Magneti Marelli Spa | Dispositivo d'innesto a ruota libera di motore elettrico di avviamento di motore a combustione interna,particolarmente di autoveicoli |
US5099972A (en) * | 1985-04-09 | 1992-03-31 | Yamaha Hatsudoki Kabushiki Kaisha | One way clutch |
US5064037A (en) * | 1990-03-01 | 1991-11-12 | Long Jr Thomas F | One-way acting sprag clutch with centrifugal disengagement from the outer race |
CZ428598A3 (cs) * | 1998-12-23 | 2000-08-16 | Pavel Blata | Odstředivá třecí spojka |
DE102006004491A1 (de) * | 2006-02-01 | 2007-08-02 | Schaeffler Kg | Klemmkörperfreilauf |
JP2008082186A (ja) * | 2006-09-26 | 2008-04-10 | Denso Corp | エンジン始動用トルク伝達装置 |
JP2009047075A (ja) * | 2007-08-20 | 2009-03-05 | Denso Corp | エンジン始動装置 |
WO2010028511A1 (en) * | 2008-09-15 | 2010-03-18 | Magna Powertrain Inc. | Sealed high capacity overrunning roller clutch |
-
2011
- 2011-02-28 DE DE102011012603A patent/DE102011012603A1/de not_active Withdrawn
- 2011-02-28 WO PCT/DE2011/000196 patent/WO2011113412A2/de active Application Filing
- 2011-02-28 DE DE112011100937.2T patent/DE112011100937B4/de not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10019593A1 (de) | 2000-04-20 | 2001-10-25 | Bayerische Motoren Werke Ag | Anlasserfreilauf |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014109544A1 (de) | 2014-06-30 | 2015-12-31 | Linde Material Handling Gmbh | Schwungrad mit Anlasserzahnkranz |
Also Published As
Publication number | Publication date |
---|---|
DE112011100937B4 (de) | 2020-02-13 |
DE112011100937A5 (de) | 2013-01-10 |
WO2011113412A3 (de) | 2012-06-28 |
DE102011012603A1 (de) | 2011-09-22 |
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