DE2931720A1 - IC engine ignition distributor with centrifugal adjuster - has pulse generator wheel with radial pole teeth and extending parallel to distributor shaft - Google Patents

IC engine ignition distributor with centrifugal adjuster - has pulse generator wheel with radial pole teeth and extending parallel to distributor shaft

Info

Publication number
DE2931720A1
DE2931720A1 DE19792931720 DE2931720A DE2931720A1 DE 2931720 A1 DE2931720 A1 DE 2931720A1 DE 19792931720 DE19792931720 DE 19792931720 DE 2931720 A DE2931720 A DE 2931720A DE 2931720 A1 DE2931720 A1 DE 2931720A1
Authority
DE
Germany
Prior art keywords
pulse generator
adjuster
distributor
pole teeth
shaft
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.)
Granted
Application number
DE19792931720
Other languages
German (de)
Other versions
DE2931720C2 (en
Inventor
Helmut Kandler
Ludwig Lohner
Peter Niederhuber
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE19792931720 priority Critical patent/DE2931720A1/en
Publication of DE2931720A1 publication Critical patent/DE2931720A1/en
Application granted granted Critical
Publication of DE2931720C2 publication Critical patent/DE2931720C2/de
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/06Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
    • F02P7/067Electromagnetic pick-up devices, e.g. providing induced current in a coil
    • F02P7/0677Mechanical arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/02Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors
    • F02P7/021Mechanical distributors
    • F02P7/026Distributors combined with other ignition devices, e.g. coils, fuel-injectors
    • F02P7/027Distributors combined with other ignition devices, e.g. coils, fuel-injectors combined with centrifugal advance devices

Abstract

The centrifugal adjuster has a stationary part, connected to the distributor shaft, and a relatively shiftable rotary part. The distributor has a pulse generator, consisting of an external pulse detector and an internal pulse generator wheel with radial pole teeth, coupled to the rotary part. The pole teeth (15) extend parallel to the shaft and protrude, at least partly, over the centrifugal adjuster (5). The rotary part (6) of the centrifugal adjuster lies between the pulse generator wheel (13) and the adjuster stationary part (4). The design provides an ignition distributor of a low constructional height. The pole teeth of the pulse detector may form part of an inductive, or a Hall-effect pulse generator. The reduction of constructional height is enhanced by locating the rotary part of the adjuster between the pulse generator wheel and the adjuster stationary part.

Description

Zündverteiler für Brennkraftmaschinen Ignition distributors for internal combustion engines

Die Erfindung bezieht sich auf einen Zündverteiler für Brennkraftmaschinen, mit einer Welle, mit einem Fliehkraftversteller, der aus einem mit der Welle verbundenen Festteil und einem gegenüber diesem verstellbaren Drehteil besteht, und mit einem Impulsgeber, der aus -einem außenliegenden Impulsaufnelirner und einem mit dem Drehteil verbundenen innenliegenden Impulsgsberrad mit radialen Polzähnen besteht.The invention relates to an ignition distributor for internal combustion engines, with a shaft, with a centrifugal adjuster, which consists of a connected to the shaft Fixed part and an adjustable rotating part with respect to this, and with one Pulse generator, consisting of an external pulse pick-up and one with the rotating part connected internal Impulsgsberrad with radial pole teeth.

Bei einem aus der DE-OS 27 50 022 bekannten derartigen Zündverteiler sind der Fliehkraftversteller und der Induktionsgeber übereinander angeordnet. Der Zündverteiler besitzt dadurch eine relativ große Bauhöhe, die seinen Einbau im Motorraum eines Kraftfahrzeugs aufgrund der dort in der Regel vorliegenden geringen Platzverhäatnisse erschwert oder sogar unmöglich machen kann.In one known from DE-OS 27 50 022 such an ignition distributor the centrifugal adjuster and the induction transmitter are arranged one above the other. Of the The ignition distributor has a relatively large overall height, which means that it can be installed in the engine compartment of a motor vehicle due to the limited space available there as a rule difficult or even impossible.

Der Erfindung liegt die Aufgabe zugrunde, einen Zündverteiler der eingangs genannten Art mit geringer Bauhöhe zu schaffen.The invention is based on the object of an ignition distributor to create the type mentioned at the beginning with a low overall height.

Die Erfindung löst diese Aufgabe dadurch, daß die Polzähne parallel zur Welle auslaufen und den Fliehkraftversteller zumindest teilweise übergreifen.The invention solves this problem in that the pole teeth are parallel run out to the shaft and at least partially overlap the centrifugal adjuster.

Die Polzähne und der Impulsaufnehmer können Teil eines induktiven oder eines mit Hall-Effekt arbeitenden Impulsgeber sein. Durch das Übergreifen des Fliehkraftverstellers durch die Pol zähne wird eine gedrängte Bauweise erreicht und die Bauhöhe deutlich verringert.The pole teeth and the pickup can be part of an inductive or a pulse generator that works with the Hall effect be. By the overlapping of the centrifugal adjuster by the pole teeth becomes a crowded one Construction achieved and the overall height significantly reduced.

Eine besonders geringe Bauhöhe ergibt sich, wenn das Drehteil des Fliehkraftverstellers zwischen Impulsgeberrad und Festteil liegt.A particularly low overall height results when the rotating part of the Centrifugal adjuster is located between the pulse generator wheel and the fixed part.

Die Erfindung ist anhand eines in der Zeichnung dargestellten Ausführungsbeispiels weiter erläutert. Es zeigen: Fig. 1 einen ZUndverteiler mit Fliehkraftversteller, Impulsgeber und unterdruckabhängiger Verstellung des ZUndzeitpunkts, Fig. 2 einen Schnitt längs der Linie II-II in Fig. 1 und Fig. 3 einen weiteren Schnitt längs der Linie III-III in Fig. 1.The invention is based on an embodiment shown in the drawing further explained. They show: FIG. 1 an ignition distributor with a centrifugal adjuster, Pulse generator and vacuum-dependent adjustment of the ignition time, FIG. 2 Section along the line II-II in Fig. 1 and Fig. 3, a further section along the line III-III in FIG. 1.

Ein in Fig. 1 dargestellter Zündverteiler 1 für Brennkraftmaschinen weist eine Welle 2 auf, die die Verlängerung einer Nockenwelle 3 darstellt. Die Welle 2 trägt einen Verteilerläufer 2' und ein Festteil 4 eines Fliehkraftverstellers 5, dessen Drehteil 6 gegenüber dem Festteil 4verstellbar ist. Hierzu dient, wie insbesondere aus Fig. 2 zu erkennen ist, ein auf dem Festteil 4 schwenkbar gelagertes Paar von Fliehgewichten 7, die mit hakenförmigen Fortsätzen 9 am Drehteil 6 anliegen.An illustrated in Fig. 1 ignition distributor 1 for internal combustion engines has a shaft 2, which represents the extension of a camshaft 3. the Shaft 2 carries a distributor rotor 2 'and a fixed part 4 of a centrifugal adjuster 5, the rotating part 6 of which is adjustable with respect to the fixed part 4. This is how can be seen in particular from FIG. 2, a pivotably mounted on the fixed part 4 Pair of flyweights 7 which rest on the rotating part 6 with hook-shaped projections 9.

Abhängig von der Drehzahl wandern die Fliehgewichte 7 in Pfeilrichtung bis zu Anschlägen 10 am Festteil 4 nach außen und verstellen das Drehteil entgegen der Wirkung von Federn 11 im Uhrzeigersinn.Depending on the speed, the flyweights 7 move in the direction of the arrow up to stops 10 on the fixed part 4 to the outside and adjust the rotating part against it the action of springs 11 clockwise.

Mit dem Drehteil 4 starr verbunden ist eine Hohlwelle 12, die ein Impulsgeberrad 13 trägt (Fig. 1). Dieses bildet zusammen mit einer Spule 14 als Impulsaufnehmer einen induktiven Impulsgeber. Das Impulsgeberrad besitzt in Fig. 3 zu erkennende, sternförmige Polzähne 15, die in Richtung der Welle 2 auslaufen (Fig. 1) und den Fliehkraftversteller 5 nahezu vollständig übergreifen. Dabei liegen der Fliehkraftversteller 5 und das Impulsgeberrad 13 innerhalb der axialen Abmessungen der Spule 14.With the rotating part 4 is rigidly connected to a hollow shaft 12, which is a Pulse generator wheel 13 carries (Fig. 1). This forms together with a coil 14 as Magnetic pickup an inductive pulse generator. The pulse generator wheel has in Fig. 3 star-shaped pole teeth 15 which can be recognized and which run out in the direction of the shaft 2 (Fig. 1) and the centrifugal adjuster 5 almost completely overlap. Thereby lie the centrifugal adjuster 5 and the pulse generator wheel 13 within the axial dimensions the coil 14.

Die Spule 14 ihrerseits sitzt, wie aus Fig. 1 und Fig. 3 zu erkennen ist, auf einer Platte 16, die durch eine Zugstange 18 eines Unterdruckverstellers 12 (in Fig. 1 in Seitenansicht dArgestellt) um die Welle 2 schwenkbar ist.The coil 14 for its part is seated, as can be seen from FIGS. 1 and 3 is, on a plate 16, which is supported by a pull rod 18 of a vacuum adjuster 12 (shown in side view in FIG. 1) is pivotable about shaft 2.

Die Verstellung des Zündzeitpunkts erfolgt drehzahlabhängig und bei Rotation der Welle 2 im Uhrzeigersinn durch den ansich bekannten Fliehkraftversteller 5 im Sinne einer Frühzündung; unabhängig davon verstellt der Unterdruckversteller bei Bewegung der Zugstange 18 in Pfeilrichtung den ZUndzei*punkt im Sinne einer Spätzündung.The ignition timing is adjusted depending on the engine speed and at Rotation of the shaft 2 clockwise by the centrifugal adjuster known per se 5 in the sense of a pre-ignition; the vacuum adjuster adjusts independently of this When the pull rod 18 is moved in the direction of the arrow, the ZUndzei * point in the sense of a Delayed ignition.

Durch die Integration von Fliehkraftversteller 5 und Impulsgeber wird eine niedrige Bauhöhe erreicht. Die Bauhöhe wird außerdem durch die radial angeschlossenen ZUndkabel, deren Anschlußkontakte 20 dargestellt sind, klein gehalten. Der Verteilerläufer 2' kann anstelle mit der Welle 2 auch mit dem Impulsgeberrad 13 starr verbunden sein.The integration of centrifugal adjuster 5 and pulse generator will achieved a low overall height. The overall height is also connected by the radially Zundkabel, the connection contacts 20 of which are shown, kept small. The distributor rotor 2 ′ can also be rigidly connected to the pulse generator wheel 13 instead of to the shaft 2 be.

Claims (2)

Zündverteiler für Brennkraftmaschinen Patentansrüche u Zündverteiler fiir Brennkraftmaschinen, mit einer Welle, mit einem Fliehkraftvers-teller, der aus einem mit der Welle verbundenen Festteil und einem gegenüber diesem verstellbaren Drehteil besteht, und mit einem Impulsgeber, der aus einem außenliegenden Impulsaufnehmer und einem mit dem Drehteil verbundenen innenliegenden Impulsgeberrad mit radialen Polzähnen besteht, dadurch gekennzeichnet, daß die Polzähne (15) parallel zur Welle (2) auslaufen und den Fliehkraftversteller (5) zumindest teilweise übergreifen. Ignition distributor for internal combustion engines Patent claims and ignition distributors for internal combustion engines, with a shaft, with a centrifugal force adjuster, the from a fixed part connected to the shaft and an adjustable part relative to this Rotary part consists, and with a pulse generator, which consists of an external magnetic pickup and an internal pulse generator wheel connected to the rotating part with radial Pole teeth, characterized in that the pole teeth (15) are parallel to the shaft (2) run out and at least partially overlap the centrifugal adjuster (5). 2. Zündverteiler nach Anspruch 1, dadurch gekennzeichnet, daß das Drehteil (6) des Fliehkraftverstellers (5) zwischen dem Impulsgeberrad (13) und dem Festteil (4) liegt.2. Ignition distributor according to claim 1, characterized in that the Rotary part (6) of the centrifugal adjuster (5) between the pulse generator wheel (13) and the fixed part (4).
DE19792931720 1979-08-04 1979-08-04 IC engine ignition distributor with centrifugal adjuster - has pulse generator wheel with radial pole teeth and extending parallel to distributor shaft Granted DE2931720A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792931720 DE2931720A1 (en) 1979-08-04 1979-08-04 IC engine ignition distributor with centrifugal adjuster - has pulse generator wheel with radial pole teeth and extending parallel to distributor shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792931720 DE2931720A1 (en) 1979-08-04 1979-08-04 IC engine ignition distributor with centrifugal adjuster - has pulse generator wheel with radial pole teeth and extending parallel to distributor shaft

Publications (2)

Publication Number Publication Date
DE2931720A1 true DE2931720A1 (en) 1981-02-19
DE2931720C2 DE2931720C2 (en) 1987-01-15

Family

ID=6077658

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792931720 Granted DE2931720A1 (en) 1979-08-04 1979-08-04 IC engine ignition distributor with centrifugal adjuster - has pulse generator wheel with radial pole teeth and extending parallel to distributor shaft

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3138390A1 (en) * 1981-09-26 1983-04-07 Robert Bosch Gmbh, 7000 Stuttgart IGNITION DISTRIBUTOR FOR INTERNAL COMBUSTION ENGINES

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2750022A1 (en) * 1976-11-11 1978-05-24 Magneti Marelli Spa DISTRIBUTOR FOR COMBUSTION MACHINERY
DE2720672A1 (en) * 1977-05-07 1978-11-09 Bosch Gmbh Robert Induction type transmitter for ignition of IC engine - has coil axis perpendicular to rotor axis with annular permanent magnet coaxial to rotor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2750022A1 (en) * 1976-11-11 1978-05-24 Magneti Marelli Spa DISTRIBUTOR FOR COMBUSTION MACHINERY
DE2720672A1 (en) * 1977-05-07 1978-11-09 Bosch Gmbh Robert Induction type transmitter for ignition of IC engine - has coil axis perpendicular to rotor axis with annular permanent magnet coaxial to rotor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3138390A1 (en) * 1981-09-26 1983-04-07 Robert Bosch Gmbh, 7000 Stuttgart IGNITION DISTRIBUTOR FOR INTERNAL COMBUSTION ENGINES

Also Published As

Publication number Publication date
DE2931720C2 (en) 1987-01-15

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Legal Events

Date Code Title Description
8101 Request for examination as to novelty
8105 Search report available
8105 Search report available
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee