DE1983334U - PUSH ROD, IN PARTICULAR FOR THE VALVE CONTROL OF COMBUSTION MACHINES. - Google Patents

PUSH ROD, IN PARTICULAR FOR THE VALVE CONTROL OF COMBUSTION MACHINES.

Info

Publication number
DE1983334U
DE1983334U DEP30810U DEP0030810U DE1983334U DE 1983334 U DE1983334 U DE 1983334U DE P30810 U DEP30810 U DE P30810U DE P0030810 U DEP0030810 U DE P0030810U DE 1983334 U DE1983334 U DE 1983334U
Authority
DE
Germany
Prior art keywords
push rod
internal combustion
valve control
cap
combustion engine
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
Application number
DEP30810U
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche 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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Priority to DEP30810U priority Critical patent/DE1983334U/en
Publication of DE1983334U publication Critical patent/DE1983334U/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/146—Push-rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0005—Deactivating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0031—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of tappet or pushrod length

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)

Description

11.4.6811.4.68

D / (ί?35*3"""1· 26- 1~68 D / ( ί? 35 * 3 """ 1 · 26-1 ~ 68

1. 1.1. 1.

Gm 208Gm 208

GebrauchsrausterUsage rush

Firma Dr.-Ing.h.c. P. Porsche KG Stuttgart-Zuffenhausen, Porschestraße 42Company Dr.-Ing.h.c. P. Porsche KG Stuttgart-Zuffenhausen, Porschestrasse 42

Stösselstange, insbesondere für die VentilsteuerungPush rod, especially for valve control

von Brennkraftmaschinenof internal combustion engines

Die Neuerung bezieht sich auf eine Stösselstange, insbesondere für die Ventilsteuerung von Brennkraftmaschinen, welche neben einer " selbsttätigen hydraulischen Nachstellvorrichtung einen zusätzlichen ölvorrat im Hohlraum der Stösselstange enthält, die über eine Zulaufbohrung an das Schmiersystem der Brennkraftmaschine angeschlossen ist.The innovation relates to a push rod, in particular for the valve control of internal combustion engines, which in addition to a "Automatic hydraulic adjustment device contains an additional oil supply in the cavity of the push rod, which is via an inlet hole is connected to the lubrication system of the internal combustion engine.

Um die Ventilsteuerzeiten bei Brennkraftmaschinen durch Wärmedehnungen der Betätigungsorgane nicht zu beeinflußen, ist es bekannt, die Stösselstange mit selbsttätigen hydraulischen Nachstellvorrichtungen zu versehen. Diese Vorrichtungen haben den Nachteil, daß aus dem Nachstellsystem bei längerer Standzeit der Maschine das zum Spielausgleich benötigte öl entweicht. Beim Anlassen der Brennkraftmaschine ist somit eine längere Laufzeit erforderlich, um die zunächst angesaugte Luft aus dem System zu verdrängen. Erst danach arbeitet die Nachstellvorrichtung zufriedenstellend. Dadurch mußTo the valve timing in internal combustion engines through thermal expansion of the actuators, it is known to use automatic hydraulic adjustment devices for the push rod to provide. These devices have the disadvantage that from the adjustment system if the machine is not used for a long time oil required to compensate for play escapes. When starting the internal combustion engine a longer running time is therefore required in order to displace the air initially sucked in from the system. Only after the adjusting device works satisfactorily. This must

-2--2-

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ferner der Nachteil in Kauf genommen werden, daß die Brennkraftmaschine mit verminderter Leistung arbeitet, was zu Beschädigungen des Steuersystemes durch zu großes Ventilspiel, führen kann.also the disadvantage that the internal combustion engine works with reduced performance, which can lead to damage to the control system due to excessive valve clearance.

Diese Mangel werden gemäss der Neuerung dadurch vermieden, daß der der selbsttätigen Nachstellvorrichtung zugeordnete ölvorratsraum durch eine in die Stösselstange eingesetzte Kappe verschließbar ist, in welcher ein Sperrkörper zum öffnen und Schließen der Zulaufbohrung angeordnet ist.According to the innovation, these deficiencies are avoided by that the oil reservoir associated with the automatic adjusting device can be closed by a cap inserted into the push rod, in which a locking body is used to open and close the inlet bore is arranged.

Durch diese Ausbildung wird mit geringem Aufwand ein zusätzlicher ölvorratsraum in der Stösselstange erhalten, der gewährleistet, daß die Nachstellvorrichtung in jedem Betriebszustand sofort mit öl versorgt und keine Luft angesaugt wird.With this design, an additional oil reservoir is obtained in the push rod with little effort, which ensures that the adjusting device is immediately supplied with oil in every operating state and no air is sucked in.

Der Sperrkörper wird durch ein federbelastetes Kugelrückschlagventil gebildet, das in der Kappe vormontiert und als selbstständige Baugruppe in die Stösselstange eingesetzt ist. Dadurch ist eine kostensparende Herstellung möglich mit dem Vorteil, daß bei notwendigen Reparaturen die Kappe mit dem Kugelrückschlagventil ausgetauscht werden kann.The blocking body is operated by a spring-loaded ball check valve formed, which is pre-assembled in the cap and used as a separate assembly in the push rod. Through this a cost-saving production is possible with the advantage that if repairs are necessary, the cap with the ball check valve can be exchanged.

In der Zeichnung ist die Neuerung anhand eines Längsschnittes durch die Stösselstange für eine Brennkraftmaschine mit einer selbsttätig arbeitenden hydraulischen Nachstellvorrichtung und der Vorratskammer gezeigt.In the drawing, the innovation is based on a longitudinal section through the push rod for an internal combustion engine with a automatic hydraulic adjustment device and the storage chamber shown.

Die Stösselstange 1 ist mit einer an sich bekannten selbsttätig arbeitenden hydraulischen Nachstellvorrichtung 2 versehen, die einen Druckraum 3 besitzt, der durch einen Nachstellkolben 4 und einem Sperrventil 5 begrenzt wird. Das Sperrventil 5 schließt den Druckraum 3 von einem Hohlraum 6 des zugeordneten Stosstangenteiles 7 ab. Am gegenüberliegenden Ende 8 der Nachstellvorrichtung 2 enthält die Stösselstange 1 eine Baugruppe 9> die aus einer kugel-The push rod 1 is provided with an automatically operating hydraulic adjusting device 2 known per se, which has a pressure chamber 3, which is controlled by an adjusting piston 4 and a check valve 5 is limited. The shut-off valve 5 closes the pressure chamber 3 from a cavity 6 of the associated bumper part 7 from. At the opposite end 8 of the adjusting device 2, the push rod 1 contains an assembly 9> from a spherical

46o:, 5/02. 1 9ST TU ri t . aschinen 26 I 4 P 30 8?™ 46o: 02.05. 1 9ST TU ri t. machines 26 I 4 P 30 8? ™

förmigen Kappe 10 und einem darin eingebrachten Sperrkörper 11 besteht. Der kugelförmige Teil 12 der Kappe 10 wird von einer Zulaufbohrung 13 durchsetzt, die in den als Vorratsraum 14 dienenden Hohlraum 6 der Stösselstange 1 führt. Die Zulaufbohrung IJ ist an das nicht dargestellte Schmierölsystem der Brennkraftmaschine angeschlossen. Die Kappe 10 ist mit einem zylindrischen Bund 15 versehen, in die Stösselstange 1 eingepresst. Das Kugelrückschlagventil 11 besteht aus einer mit Bohrungen 16 versehenen und zur Abstützung einer Druckfeder 17 bestimmten Hülse 18 und einer von der Druckfeder 17 belasteter Kugel 19, die die Zulaufbohrung IJ bei abgestellter Maschine geschlossen hält.shaped cap 10 and a locking body 11 incorporated therein consists. The spherical part 12 of the cap 10 is penetrated by an inlet bore 13, which is used as a storage space 14 in the Cavity 6 of the push rod 1 leads. The inlet hole IJ is on connected to the lubricating oil system, not shown, of the internal combustion engine. The cap 10 is provided with a cylindrical collar 15, pressed into the push rod 1. The ball check valve 11 consists of a bore 16 and for Support of a compression spring 17 specific sleeve 18 and a ball 19 loaded by the compression spring 17, which the inlet bore IJ Keeps closed when the machine is switched off.

Wird die Brennkraftmaschine in Betrieb genommen, so wird durch den erzeugten Öldruck das Kugelrückschlagventil 11 von seinem Sitz abgehoben, wodurch der Vorrat'raum 14 im Bedarfsfalle sofort nachgefüllt wird. Die Wirkungsweise der selbsttätigen Nachstellvorrichtung 2 ist nicht Gegenstand der Neuerung.If the internal combustion engine is started up, the ball check valve 11 is switched from by the generated oil pressure lifted from its seat, whereby the storage space 14 if necessary is refilled immediately. The mode of operation of the automatic adjusting device 2 is not the subject of the innovation.

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Claims (2)

Gm 208 SchutzansprücheGm 208 claims for protection 1. Stösselstange, insbesondere für die Ventilsteuerung von Brennkraftmaschinen, welche neben einer selbsttätigen hydraulischen Nachstellvorrichtung einen zusätzlichen ölvorrat im Hohlraum der Stösselstange enthält, der über eine Zulaufbohrung an das Schmiersystem der Brennkraftmaschine angeschlossen ist, dadurch gekennzeichnet, daß der der selbsttätigen Nachstellvorrichtung (2) zugeordnete ölvorratsraum (14) durch eine in die Stösselstange (l) eingesetzte Kappe (10) verschließbar ist, in welcher ein Sperrkörper (11) zum Öffnen und Schließen der Zulaufbohrung (13) angeordnet ist.1. Push rod, especially for valve control of Internal combustion engines which, in addition to an automatic hydraulic adjusting device, have an additional oil supply in the cavity of the Includes push rod that connects to the lubrication system via an inlet hole is connected to the internal combustion engine, characterized in that the automatic adjustment device (2) assigned oil storage space (14) by means of one inserted into the push rod (l) Cap (10) can be closed, in which a blocking body (11) for opening and closing the inlet bore (13) is arranged is. 2. Stösselstange nach Anspruch 1, dadurch gekennzeichnet, daß der Sperrkörper durch ein federbelastetes Kugelrückschlagventil (11) gebildet wird, das in der Kappe (10) vormontiert und als selbstständige Baugruppe (9) in die Stösselstange (1) eingesetzt ist.2. pushrod according to claim 1, characterized in that the locking body by a spring-loaded ball check valve (11) is formed, which is preassembled in the cap (10) and used as an independent assembly (9) in the push rod (1).
DEP30810U 1968-01-26 1968-01-26 PUSH ROD, IN PARTICULAR FOR THE VALVE CONTROL OF COMBUSTION MACHINES. Expired DE1983334U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP30810U DE1983334U (en) 1968-01-26 1968-01-26 PUSH ROD, IN PARTICULAR FOR THE VALVE CONTROL OF COMBUSTION MACHINES.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP30810U DE1983334U (en) 1968-01-26 1968-01-26 PUSH ROD, IN PARTICULAR FOR THE VALVE CONTROL OF COMBUSTION MACHINES.

Publications (1)

Publication Number Publication Date
DE1983334U true DE1983334U (en) 1968-04-11

Family

ID=33368086

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP30810U Expired DE1983334U (en) 1968-01-26 1968-01-26 PUSH ROD, IN PARTICULAR FOR THE VALVE CONTROL OF COMBUSTION MACHINES.

Country Status (1)

Country Link
DE (1) DE1983334U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10109954A1 (en) * 2001-03-01 2002-09-05 Ina Schaeffler Kg Valve train of an internal combustion engine
EP1477638A1 (en) * 2003-05-08 2004-11-17 Caterpillar Motoren GmbH & Co. KG Variable valve drive
DE102005054086A1 (en) * 2004-12-17 2006-11-02 Schaeffler Kg Internal combustion engine`s valve train, has one-way valve unit installed in pushrod for retaining hydraulic medium column during standstill of engine, where pushrod has ends with two supports
US7174870B2 (en) 2004-12-17 2007-02-13 Ina-Schaeffler Kg Valve train of an internal combustion engine comprising a tappet and a hollow tappet pushrod
US7246589B2 (en) 2004-12-17 2007-07-24 Schaeffler Kg Valve train of an internal combustion engine comprising a tappet and a tappet pushrod

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10109954A1 (en) * 2001-03-01 2002-09-05 Ina Schaeffler Kg Valve train of an internal combustion engine
EP1477638A1 (en) * 2003-05-08 2004-11-17 Caterpillar Motoren GmbH & Co. KG Variable valve drive
DE102005054086A1 (en) * 2004-12-17 2006-11-02 Schaeffler Kg Internal combustion engine`s valve train, has one-way valve unit installed in pushrod for retaining hydraulic medium column during standstill of engine, where pushrod has ends with two supports
US7174870B2 (en) 2004-12-17 2007-02-13 Ina-Schaeffler Kg Valve train of an internal combustion engine comprising a tappet and a hollow tappet pushrod
US7246590B2 (en) 2004-12-17 2007-07-24 Schaeffler Kg Valve train of an internal combustion engine comprising a tappet and a tappet pushrod
US7246589B2 (en) 2004-12-17 2007-07-24 Schaeffler Kg Valve train of an internal combustion engine comprising a tappet and a tappet pushrod

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