DE4302619A1 - IC engine electric starter motor gear - Google Patents

IC engine electric starter motor gear

Info

Publication number
DE4302619A1
DE4302619A1 DE19934302619 DE4302619A DE4302619A1 DE 4302619 A1 DE4302619 A1 DE 4302619A1 DE 19934302619 DE19934302619 DE 19934302619 DE 4302619 A DE4302619 A DE 4302619A DE 4302619 A1 DE4302619 A1 DE 4302619A1
Authority
DE
Germany
Prior art keywords
sealing ring
track
driving sleeve
drive shaft
starter motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19934302619
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Audi AG
Original Assignee
Audi AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Audi AG filed Critical Audi AG
Priority to DE19934302619 priority Critical patent/DE4302619A1/en
Publication of DE4302619A1 publication Critical patent/DE4302619A1/en
Withdrawn legal-status Critical Current

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
    • 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
    • F02N15/04—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
    • F02N15/062—Starter drives

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Devices (AREA)

Abstract

A gearing arrangement for starter motors in cars has a rotating and sliding pinion (18) on a drive shaft (12). It is connected through a one-way (free-wheel) coupling (16) to a carrier (22) which rotates on the drive shaft courtesy of a helical thread (24). The coupling has rollers (30) between inner and outer components. An elastic sealing ring (36) protects the thread from outside contamination by dirt or damp, and is mounted right beside the guide ring (34).

Description

Die Erfindung betrifft ein Einspurgetriebe für elektrische Andrehmo­ toren von Brennkraftmaschinen, gemäß dem Oberbegriff des Patentan­ spruches 1.The invention relates to a single-track transmission for electric Andrehmo gates of internal combustion engines, according to the preamble of the patent saying 1.

Ein derartiges Einspurgetriebe zeigt beispielsweise DE 39 28 796 A1, bei dem zwischen dem Antriebsritzel und der Mitnehmerscheibe noch ein Führungsring eingesetzt ist, der zur Zentrierung des äußeren Gehäuses der Einwegkupplung (Freilauf) dient. Derartige Einspurgetriebe können unter ungünstigen Betriebsbedingungen (Hitze, Feuchtigkeit, Staub, etc.) Störungen verursachen, die auf eine Schwergängigkeit insbeson­ dere in der Schraubverzahnung zurückzuführen sind.Such a single-track transmission is shown, for example, in DE 39 28 796 A1, in the one between the drive pinion and the drive plate Guide ring is used to center the outer housing serves the one-way clutch (freewheel). Such single-track gearboxes can under unfavorable operating conditions (heat, moisture, dust, etc.) cause disturbances, which are due to a stiffness in particular which can be attributed to the screw toothing.

Aufgabe der Erfindung ist es, daß gattungsgemäße Einspurgetriebe mit einfachen Mitteln derart zu verbessern, daß Schwergängigkeiten weit­ gehendst ausgeschlossen sind.The object of the invention is that generic single gears with simple means to improve such that stiffness is far are largely excluded.

Diese Aufgabe wird erfindungsgemäß mit den kennzeichnenden Merkmalen des Patentanspruches 1 gelöst. Vorteilhafte Weiterbildungen der Er­ findung sind den weiteren Patentansprüchen entnehmbar.This object is achieved with the characterizing features of claim 1 solved. Advantageous further training of the Er invention can be found in the further claims.

Erfindungsgemäß wird also vorgeschlagen, das Einspurgetriebe bzw. bevorzugt die mit der Schraubverzahnung zusammenwirkende Mitnehmer­ hülse mittels eines Dichtringes nach außen abzudichten, um so im Betrieb festgestellten Verpastungen des Schmiermittels entgegenzuwir­ ken. Auf Grund der rauhen Betriebsbedingungen an derartigen Einspur­ getrieben wird dabei bevorzugt ein Wellendichtring vorgeschlagen, der zudem unmittelbar benachbart einem Führungsring der Mitnehmerhülse angeordnet sein kann.According to the invention, it is therefore proposed that the single-track transmission or prefers the driver interacting with the screw toothing to seal the sleeve to the outside by means of a sealing ring, so as to Operation to counteract pasting of the lubricant ken. Due to the harsh operating conditions on such single track driven a shaft seal is preferably proposed that also directly adjacent to a guide ring of the driving sleeve can be arranged.

Ein Ausführungsbeispiel der Erfindung ist in folgenden mit weiteren Einzelheiten näher erläutert. Die schematische Zeichnung zeigt einen Längsschnitt durch ein Einspurgetriebe eines elektrischen Andrehmo­ tors für Brennkraftmaschinen.An embodiment of the invention is in the following with others Details explained in more detail. The schematic drawing shows one Longitudinal section through a single-track gearbox of an electric starting motor tors for internal combustion engines.

Die Zeichnung zeigt einen Abschnitt eines elektrischen Andrehmotors 10 für eine Brennkraftmaschine mit einer Welle 12, die in dem nur teilweise dargestellten Gehäuse 14 drehbar gelagert ist und das Ein­ spurgetriebe 16 trägt.The drawing shows a portion of an electric starter motor 10 for an internal combustion engine with a shaft 12 which is rotatably mounted in the housing 14 shown only partially and which carries a track gear 16 .

Das Einspurgetriebe 16 - welches handelsüblicher Bauart sein kann und nur soweit erläutert ist, als es für das Verständnis der vorliegenden Erfindung notwendig ist - setzt sich im wesentlichen aus einem An­ triebsritzel 18, einer Einwegkupplung 20 und einer Mitnehmerhülse 22 zusammen.The single-track gear 16 - which can be of a commercially available type and is only explained as far as is necessary for understanding the present invention - is composed essentially of a pinion 18 , a one-way clutch 20 and a driving sleeve 22 .

Das Einspurgetriebe 16 ist auf der Welle 12 axial verschiebbar gela­ gert, wobei die Drehmomentübertragung über eine Schraubverzahnung 24 auf der Welle 12 und in der Mitnehmerhülse 22 erfolgt.The single-track gear 16 is axially displaceable on the shaft 12 , the torque being transmitted via a screw toothing 24 on the shaft 12 and in the driving sleeve 22 .

Der Drehmomentfluß verläuft über die Einwegkupplung 20 (Freilauf), wobei ein an die Mitnehmerhülse 22 angeformter Außenring 26 und ein am Antriebsritzel 18 befindlicher Innenring 28 über Rollen 30 ent­ sprechend zusammenwirken. Die Einwegkupplung 16 mit dem Antriebs­ ritzel 18 wird von einem äußeren Abschlußring 32 zusammengehalten.The torque flow runs through the one-way clutch 20 (freewheel), wherein an integrally formed on the driving sleeve 22 outer ring 26 and an inner ring 28 located on the drive pinion 18 cooperate accordingly via rollers 30 . The one-way clutch 16 with the drive pinion 18 is held together by an outer end ring 32 .

Ferner ist benachbart der Einwegkupplung 16 in der Mitnehmerhülse 22 ein Führungsring 34 vorgesehen, der sich auf einem zylindrischen Ab­ schnitt der Welle 12 und an der Führungshülse 22 abstützt und eine Zentrierung für die Einwegkupplung 16 bildet. Neben diesem Führungs­ ring 34 ist ein Wellendichtring 36 handelsüblicher Bauart eingesetzt. Furthermore, a guide ring 34 is provided adjacent to the one-way clutch 16 in the driving sleeve 22 , which is based on a cylindrical section of the shaft 12 and on the guide sleeve 22 and forms a centering for the one-way clutch 16 . In addition to this guide ring 34 , a shaft seal 36 is used commercially available type.

Der Wellendichtring 36 dichtet somit die Schraubverzahnung 24 nach außen zur Antriebsritzelseite ab, so daß in diesem Bereich kein Ein­ trag von Schmutz, insbesondere Kupplungsstaub von der Hauptkupplung der Brennkraftmaschine, Feuchtigkeit etc. erfolgen kann, der zu einer Verpastung des Schmiermittels an der Schraubverzahnung 24 führen könnte.The shaft seal 36 thus seals the screw toothing 24 from the outside to the drive pinion side, so that no entry of dirt, in particular coupling dust from the main coupling of the internal combustion engine, moisture etc. can occur in this area, which leads to pasting of the lubricant on the screw toothing 24 could.

Claims (3)

1. Einspurgetriebe für elektrische Andrehmotoren von Brennkraftma­ schinen, mit einem drehbar und axial verschiebbar auf einer An­ triebswelle gelagerten Antriebsritzel, das über eine Einwegkupp­ lung mit einer Mitnehmerhülse verbunden ist, wobei die Mitnehmer­ hülse über eine Schraubverzahnung mit der Antriebswelle drehver­ bunden ist, gekennzeichnet durch einen elastischen Dichtring (36) innerhalb des Einspurgetriebes (16), der zumindest die Schraubver­ zahnung (24) nach außen abdichtet.1. Single-track gearbox for electric starting motors of internal combustion engines, with a rotatable and axially displaceable drive shaft mounted on a drive pinion, which is connected via a one-way clutch to a driving sleeve, the driving sleeve being connected via a screw toothing to the drive shaft, characterized by an elastic sealing ring ( 36 ) within the single-track transmission ( 16 ), which at least seals the gearing ( 24 ) to the outside. 2. Einspurgetriebe nach Anspruch 1, wobei benachbart dem Antriebsrit­ zel (18) in der Mitnehmerhülse (22) ein Führungsring (34) einge­ setzt ist, dadurch gekennzeichnet, daß der Dichtring (36) unmit­ telbar neben dem Führungsring (34) angeordnet ist.2. single-track transmission according to claim 1, wherein adjacent the Antriebsrit zel ( 18 ) in the driving sleeve ( 22 ), a guide ring ( 34 ) is inserted, characterized in that the sealing ring ( 36 ) is arranged immediately next to the guide ring ( 34 ). 3. Einspurgetriebe nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Dichtring ein Wellendichtring (36) ist.3. Single-track gearbox according to claim 1 or 2, characterized in that the sealing ring is a shaft sealing ring ( 36 ).
DE19934302619 1993-01-30 1993-01-30 IC engine electric starter motor gear Withdrawn DE4302619A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934302619 DE4302619A1 (en) 1993-01-30 1993-01-30 IC engine electric starter motor gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934302619 DE4302619A1 (en) 1993-01-30 1993-01-30 IC engine electric starter motor gear

Publications (1)

Publication Number Publication Date
DE4302619A1 true DE4302619A1 (en) 1994-08-04

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ID=6479275

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19934302619 Withdrawn DE4302619A1 (en) 1993-01-30 1993-01-30 IC engine electric starter motor gear

Country Status (1)

Country Link
DE (1) DE4302619A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19845148C2 (en) * 1997-10-06 2000-11-30 Ford Motor Co Starter
FR2816012A1 (en) * 2000-10-31 2002-05-03 Valeo Equip Electr Moteur METHOD FOR MANUFACTURING A STARTER FOR A MOTOR VEHICLE HEAT ENGINE COMPRISING A REDUCED NUMBER OF PARTS
FR2868134A1 (en) * 2004-03-23 2005-09-30 Valeo Equip Electr Moteur Starter for motor vehicle`s combustion engine, has electric motor coupled to accelerator comprising coupling piece and/or shank-pinion unit with baffles/joints inhibiting migration of pollutants towards friction surfaces of friction clutch
WO2006100353A1 (en) * 2005-03-24 2006-09-28 Valeo Equipements Electriques Moteur Internal combustion engine starter equipped with a friction free-wheel starter drive assembly
CN102345546A (en) * 2010-08-02 2012-02-08 德昌电机(深圳)有限公司 Starter
US9249365B2 (en) 2010-11-23 2016-02-02 Sasol Wax Gmbh Process for grinding waxes using grinding aids in a jet mill, use of polyols as a grinding aid and wax powder comprising polyols

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849989A1 (en) * 1977-11-18 1979-05-23 Paris & Du Rhone ELECTRIC STARTER FOR COMBUSTION ENGINES
DE2800996A1 (en) * 1978-01-11 1979-07-12 Bosch Gmbh Robert FREE WHEELING, IN PARTICULAR FOR TURNING DEVICES OF COMBUSTION ENGINE
DE3928796A1 (en) * 1989-08-31 1991-03-07 Bosch Gmbh Robert Single track gearbox for turning devices of internal combustion engines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849989A1 (en) * 1977-11-18 1979-05-23 Paris & Du Rhone ELECTRIC STARTER FOR COMBUSTION ENGINES
DE2800996A1 (en) * 1978-01-11 1979-07-12 Bosch Gmbh Robert FREE WHEELING, IN PARTICULAR FOR TURNING DEVICES OF COMBUSTION ENGINE
DE3928796A1 (en) * 1989-08-31 1991-03-07 Bosch Gmbh Robert Single track gearbox for turning devices of internal combustion engines

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19845148C2 (en) * 1997-10-06 2000-11-30 Ford Motor Co Starter
DE19845148C5 (en) * 1997-10-06 2004-10-14 Ford Motor Co., Dearborn Starter
FR2816012A1 (en) * 2000-10-31 2002-05-03 Valeo Equip Electr Moteur METHOD FOR MANUFACTURING A STARTER FOR A MOTOR VEHICLE HEAT ENGINE COMPRISING A REDUCED NUMBER OF PARTS
WO2002036962A1 (en) * 2000-10-31 2002-05-10 Valeo Equipements Electriques Moteur Method for making a motor vehicle starter comprising a reduced number of parts
FR2868134A1 (en) * 2004-03-23 2005-09-30 Valeo Equip Electr Moteur Starter for motor vehicle`s combustion engine, has electric motor coupled to accelerator comprising coupling piece and/or shank-pinion unit with baffles/joints inhibiting migration of pollutants towards friction surfaces of friction clutch
WO2006100353A1 (en) * 2005-03-24 2006-09-28 Valeo Equipements Electriques Moteur Internal combustion engine starter equipped with a friction free-wheel starter drive assembly
CN102345546A (en) * 2010-08-02 2012-02-08 德昌电机(深圳)有限公司 Starter
US9249365B2 (en) 2010-11-23 2016-02-02 Sasol Wax Gmbh Process for grinding waxes using grinding aids in a jet mill, use of polyols as a grinding aid and wax powder comprising polyols

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee