DE1242411B - Method for setting the spring preload in vacuum ignition adjusters for internal combustion engines - Google Patents

Method for setting the spring preload in vacuum ignition adjusters for internal combustion engines

Info

Publication number
DE1242411B
DE1242411B DEB80223A DEB0080223A DE1242411B DE 1242411 B DE1242411 B DE 1242411B DE B80223 A DEB80223 A DE B80223A DE B0080223 A DEB0080223 A DE B0080223A DE 1242411 B DE1242411 B DE 1242411B
Authority
DE
Germany
Prior art keywords
housing
membrane
spring
cover
setting
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Withdrawn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
DEB80223A
Other languages
German (de)
Inventor
Andreas Brantner
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DEB80223A priority Critical patent/DE1242411B/en
Priority to GB53364/65A priority patent/GB1125729A/en
Priority to US518608A priority patent/US3396449A/en
Priority to FR44851A priority patent/FR1465818A/fr
Publication of DE1242411B publication Critical patent/DE1242411B/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Withdrawn legal-status Critical Current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
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/05—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means
    • F02P5/10—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means dependent on fluid pressure in engine, e.g. combustion-air pressure
    • F02P5/103—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means dependent on fluid pressure in engine, e.g. combustion-air pressure dependent on the combustion-air pressure in engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/005—Advancing or retarding ignition; Control therefor with combination of automatic and non- automatic means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49004—Electrical device making including measuring or testing of device or component part
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49609—Spring making
    • Y10T29/49611—Spring making for vehicle or clutch
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part

Description

Verfahren zum Einstellen der Federvorspannung bei Unterdruckzündverstellern für Brennkraftmaschinen Die Erfindung bezieht sich auf ein Verfahren zum Einstellen der Vorspannung der Rückstellfeder im Membrangehäuse eines Unterdruckzündverstellers. Sie beschränkt sich ausdrücklich auf das Gebiet der Zündverstellung von Brennkraftmaschinen.Procedure for setting the spring preload on vacuum ignition adjusters for internal combustion engines The invention relates to a method for adjusting the bias of the return spring in the diaphragm housing of a vacuum ignition adjuster. It is expressly limited to the field of ignition timing of internal combustion engines.

Bei bekannten Unterdruckzündverstellern, deren Membrangehäuse außen am Zündverteilergehäuse befestigt ist, wird eine Membrane durch den in der Ansaugleitung der Maschine herrschenden Unterdruck entgegen einer Rückstellkraft aus ihrer Ruhestellung herausbewegt. Die Rückstellkraft wird dabei durch eine im Membrangehäuse des Verstellers angeordnete Feder ausgeübt, die mit geringer Vorspannung auf die Membrane drückt. Durch Verändern der Federvorspannung kann der Verstellinienverlauf des Unterdruckzündverstellers im wesentlichen parallel verschoben werden.In known vacuum ignition adjusters, the membrane housing of which is on the outside is attached to the distributor housing, a membrane is inserted through the in the intake line the machine prevailing negative pressure against a restoring force from its rest position moved out. The restoring force is generated by a device in the diaphragm housing of the adjuster arranged spring exerted, which presses with low preload on the membrane. By changing the spring preload, the course of the adjustment line of the vacuum ignition adjuster are shifted essentially in parallel.

Um Fertigungstoleranzen am Unterdruckzündversteller und Zündverteiler, die unter anderem die Verstellinie beeinflussen, auszugleichen, wird die Federvorspannung nach dem Montieren des Unterdruckzündverstellers am Zündverteilergehäuse so eingestellt, daß die Verstellinie innerhalb der zulässigen Grenzen liegt.To avoid manufacturing tolerances on the vacuum ignition adjuster and distributor, which, among other things, affect the adjustment line, is compensated for by the spring preload set after mounting the vacuum ignition adjuster on the distributor housing so that that the adjustment line lies within the permissible limits.

Das Einstellen der Federvorspannung erfolgt bei bekannten Unterdruckzündverstellern mit Hilfe von Einstellschrauben, Gewindebolzen u. dgl., die danach gegen selbständiges Verdrehen gesichert werden.The spring preload is set in known vacuum ignition adjusters with the help of adjusting screws, threaded bolts and the like Twisting are secured.

Gemäß der Erfindung erfolgt das Einstellen der Vorspannung der Feder im Membrangehäuse eines Unterdruckzündverstellers in wesentlich einfacherer Weise dadurch, daß Gehäuseboden, Gehäusedeckel, Membrane und Feder zunächst mit einer Federspannung zusammengebaut «erden, die außerhalb des erforderlichen Genauigkeitswertes der letzteren liegt, und daß anschließend das zusammengebaute Aggregat in eine Vorrichtung eingelegt wird, in welcher durch Verformung des Membrangehäusedeckels die Vorspannung der Feder auf ihren erforderlichen Wert gebracht wird.According to the invention, the setting of the preload of the spring takes place in the membrane housing of a vacuum ignition adjuster in a much simpler way characterized in that the housing base, housing cover, membrane and spring initially with a Spring tension assembled «earth which is outside the required accuracy value the latter lies, and that then the assembled unit in a device is inserted, in which the pretensioning is achieved by deformation of the diaphragm housing cover the spring is brought to its required value.

Im einfachsten Fall wird dabei der Membrangehäusedeckel an seiner Stirnfläche eingedrückt.In the simplest case, the membrane housing cover is attached to his Indented face.

Das erfindungsgemäße Verfahren wird an Hand der Zeichnung näher erläutert. Es zeigt F i g. 1 einen Unterdruckzündversteller mit einem Membrangehäuse im Schnitt vor der Einstellung der Federv orspannung, F i g. 2 denselben Unterdruckzündversteller nach der Einstellung der Federvorspannung und die dazu verwendete Vorrichtung.The method according to the invention is explained in more detail with reference to the drawing. It shows F i g. 1 shows a vacuum ignition adjuster with a membrane housing in section before adjusting the spring preload, FIG. 2 the same vacuum ignition adjuster after setting the spring preload and the device used for this.

In F i g. 1 ist das Membrangehäuse des Unterdruckzündverstellers mit 10 bezeichnet. Es besteht aus 2 einem Gehäuseboden 11 und einem Gehäusedeckel 12, zwischen die eine Membrane 13 eingeklemmt ist. Gehäuseboden 11, Gehäusedeckel 12 und Membrane 13 werden durch den umgebördelten Rand 14 des Gehäusebodens 11 zusammengehalten. Die Stirnfläche 15 des Gehäusedeckels 12 hat eine Ausbuchtung 16, in die ein Rohrstutzen 17 für den Anschluß einer nicht dargestellten Unterdruckleitung eingelötet ist. Die Membrane 13 ist in der Mitte beidseitig durch je eine Scheibe 18 und 19 versteift und mit einer Verstellstange 20 verbunden, deren freies Ende an der Unterbrecherplatte eines Zündverteilers angreift. Membrane 13 und Gehäusedeckel 12 bilden einen Unterdruckraum 21, in den eine als Rückstellglied dienende Druckfeder 22 mit geringer Vorspannung eingesetzt ist. Sie ist an einem Ende gegen die Scheibe 18 und am anderen Ende in der Ausbuchtung 16 des Membrangehäuses 10 abgestützt.In Fig. 1 is the membrane housing of the vacuum ignition adjuster with 10 designated. It consists of 2 a housing base 11 and a housing cover 12, between which a membrane 13 is clamped. Housing bottom 11, housing cover 12 and membrane 13 are held together by the beaded edge 14 of the housing bottom 11. The end face 15 of the housing cover 12 has a bulge 16 into which a pipe socket 17 is soldered for the connection of a vacuum line, not shown. The membrane 13 is stiffened in the middle on both sides by a disk 18 and 19 each and connected to an adjusting rod 20, the free end of which is on the breaker plate an ignition distributor attacks. The membrane 13 and the housing cover 12 form a vacuum space 21, in which a compression spring 22 serving as a restoring member with a slight bias is used. It is against disk 18 at one end and in at the other end the bulge 16 of the membrane housing 10 is supported.

Wie F i g. 2 zeigt, ist das Membrangehäuse mit einem am Gehäuseboden 11 angeschweißten Befestigungssockel 23 versehen und durch Schrauben 24 an einem Zündverteiler 25 festgeschraubt. Auf einer Vorrichtung mit Prüfstand wird die Federvorspannung so eingestellt, daß die Verstellinie des Unterdruckzündverstellers innerhalb der zulässigen Grenzen liegt. Dazu wird das Membrangehäuse 10 in eine Vorrichtung 26 gelegt und die Stirnfläche 15 des Membrangehäusedeckels 11 mit einem Druckstempel 27 in Pfeilrichtung eingedrückt, bis die Druckfeder 22 die erforderliche Vorspannung hat.Like F i g. 2 shows, the membrane housing is provided with a fastening base 23 welded to the housing base 11 and screwed tightly to an ignition distributor 25 by means of screws 24. The spring preload is set on a device with a test stand so that the adjustment line of the vacuum ignition adjuster lies within the permissible limits. For this purpose, the diaphragm housing 10 is placed in a device 26 and the end face 15 of the diaphragm housing cover 11 is pressed in with a plunger 27 in the direction of the arrow until the compression spring 22 has the required bias.

Claims (3)

Patentansprüche: 1. Verfahren zum Einstellen der Vorspannung der Rückstellfeder im Membrangehäuse eines Unterdruckzündverstellers für Brennkraftmaschinen, wobei das Membrangehäuse aus Gehäuseboden und -deckel besteht und die Membrane zwischen diesem Boden und Deckel eingespannt ist, und wobei die Feder sich an Deckel und Membrane abstützt und durch Verändern der Lage der Federabstützung in ihrer Spannung eingestellt wird, dadurch gekennzeichnet, daß Gehäuseboden (11), Gehäusedeckel (12), Membrane (13) und Feder (22) zunächst mit einer Federspannung zusammengebaut werden, die außerhalb des erforderlichen Genauigkeitswertes der letzteren liegt, und daß anschließend das zusammengebaute Aggregat (11, 12, 13, 22) in eine Vorrichtung (26) eingelegt wird, in welcher durch Verformung des Membrangehäusedeckels (12), z. B. mittels Stempels (27), die Vorspannung der Feder (22) auf ihren erforderlichen Wert gebracht wird. Claims: 1. A method for setting the bias of the return spring in the diaphragm housing of a vacuum ignition adjuster for internal combustion engines, the diaphragm housing consisting of the housing base and cover and the membrane being clamped between this base and cover, and the spring being supported on the cover and the membrane and through Changing the position of the spring support is adjusted in its tension, characterized in that the housing base (11), housing cover (12), membrane (13) and spring (22) are initially assembled with a spring tension which is outside the required accuracy value of the latter, and that then the assembled unit (11, 12, 13, 22) is inserted into a device (26) in which by deformation of the membrane housing cover (12), for. B. by means of a stamp (27), the bias of the spring (22) is brought to its required value. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Stirnfläche (15) des Membrangehäusedeckels (12) eingedrückt wird. 2. The method according to claim 1, characterized in that the end face (15) of the membrane housing cover (12) is pushed in. 3. Membrangehäuse, dessen Gehäusedeckel gemäß dem Verfahren nach Anspruch 1 oder 2 verformt ist, dadurch gekennzeichnet, daß die beim Eindrücken entstandene Verformung sich in der oberhalb eines kegelstumpfförmigen Wandungsteils befindlichen Stirnfläche (15) des Membrangehäusedeckels (12) befindet. In Betracht gezogene Druckschriften: Französische Zusatzpatentschrift Nr. 60 456 zum französischen Patent Nr. 982 571; britische Patentschriften Nr. 463 463, 501360.3. Membrane housing, the housing cover of which is deformed according to the method of claim 1 or 2, characterized in that the deformation resulting from the pressing is located in the end face (15) of the membrane housing cover (12) located above a frustoconical wall part. Documents considered: French Patent Amendment No. 60 456 to French Patent No. 982 571; British Patent Nos. 463 463, 501360.
DEB80223A 1965-01-22 1965-01-22 Method for setting the spring preload in vacuum ignition adjusters for internal combustion engines Withdrawn DE1242411B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DEB80223A DE1242411B (en) 1965-01-22 1965-01-22 Method for setting the spring preload in vacuum ignition adjusters for internal combustion engines
GB53364/65A GB1125729A (en) 1965-01-22 1965-12-16 Improvements in pre-stressing the spring in vacuum operated ignition timers of internal combustion engines
US518608A US3396449A (en) 1965-01-22 1966-01-04 Method of calibrating vacuum advance mechanisms for ignition distributors
FR44851A FR1465818A (en) 1965-01-22 1966-01-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB80223A DE1242411B (en) 1965-01-22 1965-01-22 Method for setting the spring preload in vacuum ignition adjusters for internal combustion engines

Publications (1)

Publication Number Publication Date
DE1242411B true DE1242411B (en) 1967-06-15

Family

ID=6980620

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB80223A Withdrawn DE1242411B (en) 1965-01-22 1965-01-22 Method for setting the spring preload in vacuum ignition adjusters for internal combustion engines

Country Status (4)

Country Link
US (1) US3396449A (en)
DE (1) DE1242411B (en)
FR (1) FR1465818A (en)
GB (1) GB1125729A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2301677A1 (en) * 1972-01-15 1973-07-19 Lucas Electrical Co Ltd SUCTION AIR UNIT AND METHOD OF MANUFACTURING A SUCTION AIR UNIT AND DISTRIBUTOR

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Publication number Priority date Publication date Assignee Title
US3554223A (en) * 1969-05-01 1971-01-12 Gen Motors Corp Pressure control valve assembly and method of calibration
US3800393A (en) * 1971-07-14 1974-04-02 Robertshaw Controls Co Method of calibrating dual lever mechanism
US3880605A (en) * 1973-07-16 1975-04-29 Gillette Co Manufacture gas propelled dispensers
US3959866A (en) * 1974-08-19 1976-06-01 Athens Stove Works, Inc. Method of making a gas range top burner
US4078722A (en) * 1976-10-28 1978-03-14 A. W. Cash Valve Manufacturing Corporation Relief valve
US4361952A (en) * 1981-02-23 1982-12-07 Sparton Corporation Method of adjusting air gap of an electric horn
DE3444451A1 (en) * 1984-12-06 1986-06-19 Vdo Adolf Schindling Ag, 6000 Frankfurt ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB463463A (en) * 1936-05-27 1937-03-31 Alfred Amos Melcher Ignition interrupter
GB501360A (en) * 1937-08-27 1939-02-27 Lucas Ltd Joseph Improvements relating to ignition apparatus for internal combustion engines
FR982571A (en) * 1943-07-20 1951-06-12 Ducellier Sa Des Ets Improvements to rotary distributors for engine ignition

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2216878A (en) * 1938-04-04 1940-10-08 Snap On Tools Inc Method of forming detents
US2714759A (en) * 1949-09-29 1955-08-09 Detroit Controls Corp Apparatus for closing and standardizing thermostatic power elements
US2904876A (en) * 1954-05-12 1959-09-22 Acf Ind Inc Shaft end mounting for sealing and loop forming a pump diaphragm
US3107417A (en) * 1959-08-24 1963-10-22 Gen Motors Corp Method for adjusting setting of a pressure relief valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB463463A (en) * 1936-05-27 1937-03-31 Alfred Amos Melcher Ignition interrupter
GB501360A (en) * 1937-08-27 1939-02-27 Lucas Ltd Joseph Improvements relating to ignition apparatus for internal combustion engines
FR982571A (en) * 1943-07-20 1951-06-12 Ducellier Sa Des Ets Improvements to rotary distributors for engine ignition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2301677A1 (en) * 1972-01-15 1973-07-19 Lucas Electrical Co Ltd SUCTION AIR UNIT AND METHOD OF MANUFACTURING A SUCTION AIR UNIT AND DISTRIBUTOR
FR2168780A5 (en) * 1972-01-15 1973-08-31 Lucas Electrical Co Ltd

Also Published As

Publication number Publication date
US3396449A (en) 1968-08-13
GB1125729A (en) 1968-08-28
FR1465818A (en) 1967-01-13

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
EF Willingness to grant licences
8339 Ceased/non-payment of the annual fee