EP0569951B1 - Starteinrichtung für Verbrennungsmotoren - Google Patents
Starteinrichtung für Verbrennungsmotoren Download PDFInfo
- Publication number
- EP0569951B1 EP0569951B1 EP93107681A EP93107681A EP0569951B1 EP 0569951 B1 EP0569951 B1 EP 0569951B1 EP 93107681 A EP93107681 A EP 93107681A EP 93107681 A EP93107681 A EP 93107681A EP 0569951 B1 EP0569951 B1 EP 0569951B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pinion
- gear
- starting device
- intermediate shaft
- starting
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- F02B75/00—Other engines
- F02B75/34—Ultra-small engines, e.g. for driving models
-
- 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
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
-
- 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
- F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
- F02N15/043—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer
-
- 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
- F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
- F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
-
- 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
- F02N3/00—Other muscle-operated starting apparatus
- F02N3/02—Other muscle-operated starting apparatus having pull-cords
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
Definitions
- the invention further relates to a method for starting a Internal combustion engine, in particular a one-cylinder internal combustion engine with the help of an electric motor, in which the electric motor and any subsequent ones in a rigid angular relationship Gear parts are rotated before one effective connection with the crankshaft becomes.
- Single-stage thrust starters are the rule for car and truck engines; motorcycle engines have this type of start only occasionally on.
- the thrust drive usually includes a magnetic switch that the small pinion connected to the starter motor in the tooth mesh with the flywheel teeth before the engine is energized. Screw drives can also be used without engagement systems be designed, the moment of inertia of the single-pinion with the correct design of its bearing in a steep thread on the driving shaft with its rapid increase in speed First mesh axially and only when the axial limit is reached Transmits torque.
- Torque is designed so that the compression generated Resistance can be overcome in every operating case.
- JP-A-60 166 754 is according to the Patent Abstracts of Japan (European Patent Office) a starting device for internal combustion engines known, the one on an output shaft of a Starter motor attached tubular torque damper which torque damper rotates the output shaft of the starter motor on a coaxial on the starter shaft Bearing drive pinion of a gear reduction arrangement transmits.
- the gear reduction arrangement also has two to an intermediate shaft on coaxial gears, of which the one meshes with the drive pinion and the other during the starting process apparently with a gear integral with the crankshaft can be brought into mesh.
- the torque damper is included a tubular, torsionally elastic rubber buffer element, that can be turned and compressed for torque buffering is deformable.
- Another object of the invention is to provide a starting device whose electric motor is better than when stationary the technology against hard torque surges in the event of blockages the crankshaft is protected.
- the torsionally elastic member consists of a mainspring, the as a spring accumulator between the intermediate shaft and one on it mounted gear is arranged, the mainspring for Limitation of the torque with an inner spring end form-fitting with the intermediate shaft and with the outer spring end is frictionally connected to the gear.
- the beginning mentioned method is proposed according to the invention, a to use the starting device according to the invention.
- a great advantage of the invention is that now a Electric motor can be used, which is also taking into account any reduction or not under is sufficient in all circumstances to avoid a problem occurring on the crankshaft To overcome the starting moment.
- the entrainment effect between the electric motor and the crankshaft is increasing Winding deformation and thus increasing torque transmission capacity the in the power flow path between the electric motor and the crankshaft arranged mainspring made so that the electric motor initially without this winding deformation substantial rotation of the crankshaft can run up to by the speed reached by the electric motor and that of it downstream if necessary in a rigid angle of rotation relationship Kinetic energy built up in transmission parts is sufficient to achieve this To overcome the crankshaft starting torque.
- This mode of operation differs from the mode of operation the starting device known from JP-A-60 166 754, that thanks to the use of a windable mainspring as Starter motor used electric motor when starting much larger turning distance up to the start of taking the Crankshaft is available, so that despite low performance of the electric motor by building an enlarged kinetic Energy reliable starting the internal combustion engine is made possible.
- the mainspring also "smoothes" the non-uniformity of the rotary movements in particular Single cylinder engines. Therefore, there are also advantages in the design to recognize the flywheel mass of the flywheel, because the the first revolutions during the starting process partially takes over the tasks of the flywheel.
- the first Rotation of the internal combustion engine is caused by the mainspring distributed a larger rotation range of the starter motor.
- a single-track device without freewheel and engagement device thus a tooth mesh aimed purely at angular acceleration, is immediately spurted out, i.e. disengaged when the driven flywheel overtakes and the transmitted one Torque goes to zero.
- a tooth mesh aimed purely at angular acceleration
- the spiral-shaped mainspring lies in that for them provided annular space of a gear on the outside only, while being positively connected to the shaft inside is.
- the spring generates in its rest position by its bias on its outer diameter a frictional engagement, the Limit torque slightly exceeds the starting torque.
- reverse ignition or The spring is initially like this around the shaft wrapped until the external frictional engagement is reduced and the elastic shaft connection slips.
- the design with an intermediate shaft has the advantage on that space remains coaxial with the flywheel Housing, for example, a manual starter.
- a flywheel 3 is rotatably arranged.
- This flywheel 3 has a ring gear on its outer circumference 4, which is preferably in one piece with the flywheel 3 connected is. engages in the toothing of this ring gear 4 the teeth 6 of a pinion 5, which by means of a Steep thread 7 rotatable and helical on an intermediate shaft 8 is axially displaceable.
- An axial compression spring 5a has the task of the pinion 5 only in its rest position to hold on; in the function of the on rotating mass of the pinion 5 based one-track mechanics does not engage this spring 5.
- the intermediate shaft 8 is rotatable in a bearing 10 in the housing stored and carries a bearing bush at the opposite end 19, which rotatably supports a gear 11 on the intermediate shaft 8.
- the end of the intermediate shaft 8 has a positive entrainment - here in the form of a double flat 8a - which has an inner Spring end 18a of the previously described mainspring 18 - here is positively connected via a driver 17.
- the spiral spring lies with the majority in the relaxed state their turns and finally with its outer spring end 18b in a cylindrical recess of a gear 11 and creates a frictional connection for the next starting process.
- the gear 11 is finally with its teeth 12 the toothing 13 of a drive pinion 14 in continuous engagement, which rotatably with a starter shaft 16 of an electric motor 15 is connected.
- Hand starting device 23 arranged in the form of a pull starter 24, the directly on the flywheel 3 in a known manner works.
- the entrainment effect is based on the one hand on the frictional engagement between the outer spring end 18b and the inner peripheral surface 11i of the Gear 11 and on the other hand on the at least one Direction of positive engagement of the inner spring end 18a in the driver 17.
- the engagement of the toothing 6 in the ring gear 4 can done essentially bumpless. If namely the gearing 6 with the axially directed tooth ends against the axially directed tooth ends of the ring gear 4 butts, so the right-hand movement of pinion 5 briefly interrupted, until there are gaps and teeth of the gearing 6 and the ring gear 4 in a further displacement axially to the right of the pinion 5 face each other. Then the pinion 5 can continue move right and in full engagement with sufficient axial overlap with the ring gear 4 of the flywheel 3 to step. Only now can the flywheel 3 start rotating from the rotor 15a of the motor 15 the output shaft 16, the drive pinion 14, the gear 11, the mainspring 18, the intermediate shaft 8, the helical thread 7 and 6a and the pinion 6.
- the runner 15a and get with it the gear 11 and those with the gear for common rotation connected parts increased speeds, being a kinetic Energy is built up, which is composed of the kinetic energy of the individual rotating parts, so for example, the rotor 15a, the pinion 14 and the Gear 11.
- the kinetic energy of this individual Parts is by the respective speed of these parts and determines the respective moment of inertia of these parts.
- This kinetic energy is now to overcome the rotational resistance of the crankshaft 2 is available, that of the associated piston cylinder pair or more such pairs of piston cylinders abuts against the crankshaft 2 and must be overcome to start.
- crankshaft 2 is turned, and the associated internal combustion engine can after Go through the first or another ignition point. So a starting process is achieved, although the Electric motor 15 not, or at least not among all Operating conditions are sufficient to the crankshaft 2 to overcome occurring rotational resistance.
- Coil spring as the mainspring only as an embodiment is to be understood. Basically there are also other torsion springs between the gear 11 and the driver 17th conceivable.
Description
- einen Elektromotor als Startermotor
- ein Untersetzungsgetriebe zur Reduzierung der Startdrehzahl
- eine Zwischenwelle mit einem Steilgewinde
- ein Ritzel, dessen Innendurchmesser ein Gegen-Steilgewinde aufweist, welches mit dem Steilgewinde der Zwischenwelle zusammenarbeitet
- einen Zahnkranz am Außendurchmesser des Schwungrads des zu startenden Verbrennungsmotors, in welchen das Ritzel der Zwischenwelle beim Startvorgang einspurt,
- Fig. 1
- eine Starteinrichtung mit Elektromotor, Zwischenwelle und Schwungrad des teilweise dargestellten Verbrennungsmotors;
- Fig. 2
- eine Triebfeder in einer spiralenförmig gewickelten Ausführung;
- Fig. 3
- die Triebfeder im Schnitt in ihrem Einbauzustand in einen Zahnrad.
Claims (9)
- Starteinrichtung für Verbrennungsmotoren, speziell für kleinere einzylindrische Einheiten, umfassendeinen Elektromotor (15) als Startermotorein Untersetzungsgetriebe (13,11) zur Reduzierung der Startdrehzahleine Zwischenwelle (8) mit einem Steilgewinde (7)ein Ritzel (5), dessen Innendurchmesser ein Gegen-Steilgewinde (6a) aufweist, welches mit dem Steilgewinde (7) der Zwischenwelle (8) zusammenarbeiteteinen Zahnkranz (4) am Außendurchmesser des Schwungrads (3) des zu startenden Verbrennungsmotors (1), in welchen das Ritzel (5) der Zwischenwelle (8) beim Startvorgang einspurt,
dadurch gekennzeichnet,
daß das drehelastische Glied (20) aus einer Triebfeder (18) besteht, die als Federspeicher zwischen der Zwischenwelle (8) und einem auf ihr gelagerten Zahnrad (11) angeordnet ist, wobei die Triebfeder (18) zur Begrenzung des Drehmomentes mit einem inneren Federende (18a) formschlüssig mit der Zwischenwelle (8) und mit dem äußeren Federende (18b) reibschlüssig mit dem Zahnrad (11) verbunden ist. - Starteinrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die Auslegung und Abstimmung der Triebfeder (18) ein Mehrfaches an Umdrehungen des Antriebsritzels (14) erlaubt, bevor sich das Schwungrad (3) zu drehen beginnt. - Starteinrichtung nach Anspruch 1 oder 2,
gekennzeichnet durch eine solche Ausbildung, daß beim Startvorgang, nachdem die Verzahnung (6) des Ritzels (5) in den Zahnkranz (4) des Schwungrads (3) eingespurt ist, das Ritzel (5) seine Arbeitslage zuverlässig eingenommen hat und dort zum Stillstand gekommen ist, erst nach Spannen der Triebfeder (18) der eigentliche Startvorgang durch Drehen des Schwungrades (3) beginnt. - Starteinrichtung nach einem der Ansprüche 1 - 3,
dadurch gekennzeichnet,
daß der Triebfeder (18) ein Dämpfungsglied beigeordnet ist, welches Kräfte erzeugt, die der Verdrehbewegung des Zahnrades (11) auf der Zwischenwelle (8) gegengerichtet sind. - Starteinrichtung nach Anspruch 4,
dadurch gekennzeichnet,
daß das Dämpfungsglied aus einer Scheibe (21) besteht, die von einer Feder (22) axial gegen die Windungen der Triebfeder (18) gepreßt wird. - Starteinrichtung nach einem der Ansprüche 1 - 5,
dadurch gekennzeichnet,
daß die Zwischenwelle (8) von der Kurbelwelle (2) räumlich so weit entfernt ist, daß koaxial zur Kurbelwelle (2) eine Handstarteinrichtung (23) in einem Trägergehäuse (9) angeordnet werden kann. - Starteinrichtung nach einem der Ansprüche 1 - 6,
dadurch gekennzeichnet,
daß der Elektromotor (15), die Zwischenwelle (8) mit dem elastischen Glied (20) sowie gegebenenfalls die Handstarteinrichtung (23) in einem Trägergehäuse (9) angeordnet sind. - Starteinrichtung nach einem der Ansprüche 1 - 7,
dadurch gekennzeichnet,
daß die Triebfeder eine Spiralfeder (18) ist. - Verfahren zum Anwerfen einer Brennkraftmaschine, insbesondere einer Ein-Zylinder-Brennkraftmaschine mit Hilfe eines Elektromotors, bei dem der Elektromotor (15) und etwaige ihm in starrer Drehwinkelbeziehung nachgeschaltete Getriebeteile (14,11) in Drehung versetzt werden, bevor eine mitnahmewirksame Verbindung mit der Kurbelwelle (2) hergestellt wird,
gekennzeichnet durch die Verwendung einer Starteinrichtung nach einem der Ansprüche 1 bis 8, insbesondere für den Einsatz eines Elektromotors (15), der auch unter Berücksichtigung einer etwaigen Untersetzung nicht oder nicht unter allen Umständen ausreicht, um ein an der Kurbelwelle (2) auftretendes Anwerfmoment zu überwinden.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4215509A DE4215509C2 (de) | 1992-05-12 | 1992-05-12 | Starteinrichtung für Verbrennungsmotoren |
DE4215509 | 1992-05-12 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0569951A2 EP0569951A2 (de) | 1993-11-18 |
EP0569951A3 EP0569951A3 (en) | 1993-12-29 |
EP0569951B1 true EP0569951B1 (de) | 1998-04-01 |
Family
ID=6458609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93107681A Expired - Lifetime EP0569951B1 (de) | 1992-05-12 | 1993-05-11 | Starteinrichtung für Verbrennungsmotoren |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0569951B1 (de) |
JP (1) | JPH0610815A (de) |
DE (2) | DE4215509C2 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001065441A (ja) * | 1999-08-27 | 2001-03-16 | Hitachi Ltd | 内燃機関用始動装置 |
JP2002285940A (ja) * | 2001-01-16 | 2002-10-03 | Kioritz Corp | スタータ装置 |
US20060027201A1 (en) | 2004-08-09 | 2006-02-09 | Ryou Ono | Engine starter |
JPWO2007088608A1 (ja) | 2006-02-01 | 2009-06-25 | ハスクバーナ・ゼノア株式会社 | 小型電動モーター付きの手作業機用エンジン始動装置と同始動装置を搭載した手作業機 |
JP4846469B2 (ja) * | 2006-07-06 | 2011-12-28 | スターテング工業株式会社 | 小型エンジンの始動装置 |
DE102009060973A1 (de) | 2009-12-17 | 2011-07-14 | Andreas Stihl AG & Co. KG, 71336 | Handgeführtes Arbeitsgerät |
CN108678882A (zh) * | 2018-05-14 | 2018-10-19 | 钱月珍 | 车辆发动机助力启动装置 |
DE102020103482A1 (de) | 2020-02-11 | 2021-08-12 | Wacker Neuson Produktion GmbH & Co. KG | Verbrennungsmotor mit manueller Motorstart-Vorrichtung |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1605090A (en) * | 1916-02-18 | 1926-11-02 | Eclipse Machine Co | Engine-starting apparatus |
DE819473C (de) * | 1950-01-03 | 1951-10-31 | Kloeckner Humboldt Deutz Ag | Ausloesevorrichtung fuer Federkraftanlasser von Brennkraftmaschinen |
DE1212355B (de) * | 1960-06-03 | 1966-03-10 | Hirth Motoren K G | Andrehvorrichtung fuer Brennkraftmaschinen |
JPS58204969A (ja) * | 1982-05-21 | 1983-11-29 | Hitachi Ltd | スタ−タ |
JPS60166754A (ja) * | 1984-02-09 | 1985-08-30 | Yamaha Motor Co Ltd | 内燃機関用始動装置 |
FR2566464B1 (fr) * | 1984-06-20 | 1986-10-31 | Paris & Du Rhone | Demarreur a reducteur epicycloidal a restitution d'energie |
JPH0625667Y2 (ja) * | 1988-04-27 | 1994-07-06 | 株式会社共立 | 始動装置 |
US5095865A (en) * | 1990-04-02 | 1992-03-17 | Keister Harry W | Remotely controlled starter for model toy engines |
-
1992
- 1992-05-12 DE DE4215509A patent/DE4215509C2/de not_active Expired - Fee Related
-
1993
- 1993-05-11 EP EP93107681A patent/EP0569951B1/de not_active Expired - Lifetime
- 1993-05-11 DE DE59308326T patent/DE59308326D1/de not_active Expired - Fee Related
- 1993-05-11 JP JP5109196A patent/JPH0610815A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0569951A2 (de) | 1993-11-18 |
EP0569951A3 (en) | 1993-12-29 |
JPH0610815A (ja) | 1994-01-21 |
DE4215509C2 (de) | 1994-11-24 |
DE59308326D1 (de) | 1998-05-07 |
DE4215509A1 (de) | 1993-11-18 |
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