DE4313656B4 - Device for actuating the valves in internal combustion engines by means of rotating cams - Google Patents
Device for actuating the valves in internal combustion engines by means of rotating cams Download PDFInfo
- Publication number
- DE4313656B4 DE4313656B4 DE4313656A DE4313656A DE4313656B4 DE 4313656 B4 DE4313656 B4 DE 4313656B4 DE 4313656 A DE4313656 A DE 4313656A DE 4313656 A DE4313656 A DE 4313656A DE 4313656 B4 DE4313656 B4 DE 4313656B4
- Authority
- DE
- Germany
- Prior art keywords
- cam
- valve
- intermediate member
- housing
- joint
- 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
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
- 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
- F01L13/0063—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 cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
-
- 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
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/08—Shape of cams
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Vorrichtung
nach Patent Nr. 41 35 257 zur Betätigung der Ventile in Verbrennungsmotoren
mittels eines Kurvengetriebes, bestehend aus einem Gehäuse (20),
einem mit dem Gehäuse
(20) umlauffähig
verbundenen Nocken (23) und einem Abtriebsglied (25), welches über ein
vom Nocken (23) gesteuertes Zwischenglied (24) in einem Dreh- oder
Schubgelenk (60, 26) mit dem Gehäuse
(20) verbunden ist und die Bewegung auf das Ventil (21) überträgt, wobei
das Zwischenglied (24) eine Steuerkurve (28) aufweist, die mit einer
relativ zum Gehäuse
(20) bewegbaren Rolle (37) ein Kurvengelenk (27) bildet, wobei der
Nocken (23) eine solche Formgebung aufweist, dass im gesamten Intervall
zwischen dem Schließen
und dem erneuten Öffnen
des Ventils am Abtriebsglied (25) eine vom Nocken im Kurvengelenk
(27) in Normalenrichtung übertragene,
vom Nocken weg gerichtete positive Beschleunigung auftritt,
die
Steuerkurve (28) einen Abschnitt (31) zur Bestimmung des Ventilhubs
und einen linearen Abschnitt (30) zur Verwirklichung einer Ventilrast
aufweist und der den...Device according to Patent No. 41 35 257 for actuating the valves in internal combustion engines by means of a cam mechanism, consisting of a housing (20), a cam (23) operably connected to the housing (20) and an output member (25), which is connected to the vehicle by a Cam (23) controlled intermediate member (24) in a rotary or thrust joint (60, 26) is connected to the housing (20) and transmits the movement to the valve (21), wherein the intermediate member (24) has a control cam (28). which, with a roller (37) which is movable relative to the housing (20), forms a cam joint (27), the cam (23) having such a shape that the entire interval between closing and reopening of the valve on the output member ( 25) a positive acceleration transmitted by the cam in the cam joint (27) in the normal direction, directed away from the cam,
the control cam (28) has a portion (31) for determining the valve lift and a linear portion (30) for realizing a valve latch and which is the ...
Description
Die vorliegende Erfindung bezieht sich auf eine Vorrichtung zur Betätigung der Ventile in Verbrennungsmotoren mittels umlaufender Nocken nach dem Oberbegriff des Patentanspruchs 1. Eine derartige Vorrichtung ist Gegenstand des Hauptpatents Nr. 41 35 257.The The present invention relates to a device for actuating the Valves in internal combustion engines by means of rotating cams after the The preamble of claim 1. Such a device is Subject of the main patent No. 41 35 257.
Der
Kern der vorgenannten Haupterfindung ist dem dort zugrunde liegenden
Stand der Technik (
Die der vorliegenden Weiterbildung der vorstehend definierten Haupterfindung zugrunde liegenden Aufgabe besteht darin, diese Haupterfindung bezüglich bestimmter konstruktiver Merkmale beziehungsweise Maßgaben näher zu spezifizieren.The the present development of the above-defined main invention The underlying task is to identify this main specify constructive features or requirements in more detail.
Diese Aufgabe wird einerseits durch die im kennzeichnenden Teil des Patentanspruchs 1 definierte Ausgestaltung des zwischen dem Stößel (Zwischenglied) und dem Abtriebsglied wirksamen Schubgelenks gelöst. Besondere Ausgestaltungen dieser Weiterbildung sind Gegenstand der Unteransprüche 2 und 3.These The object is on the one hand by the characterizing part of the claim 1 defined embodiment of the between the plunger (intermediate member) and the Output member effective sliding joint solved. Special embodiments of this Further development are the subject of subclaims 2 and 3.
Ein weiteres Lösungsmerkmal im Hinblick auf die Konstruktion der Ventilbetätigungseinrichtung gemäß der Haupterfindung bezieht sich auf die konkrete Ausgestaltung des Verstellmechanismus für den Ventilhub (vergleiche Patentanspruch 4 und Patentanspruch 5).One another solution feature with regard to the construction of the valve actuator according to the main invention refers to the specific design of the adjustment mechanism for the Valve lift (compare claim 4 and claim 5).
Gemäß den Unteransprüchen 6 und 7 wird darüberhinaus eine weitere konstruktive Lösung für den Verstellmechanismus für den Ventilhub angegeben.According to the subclaims 6 and 7 goes beyond that another constructive solution for the Adjusting mechanism for indicated the valve lift.
Die vorliegenden Weiterbildungen der Haupterfindung werden im folgenden anhand der Zeichnung näher erläutert. Diese zeigt inThe Present developments of the main invention will be in the following closer to the drawing explained. This shows in
In
Gemäß der Darstellung
nach
Das
soweit beschriebene Getriebe ist allgemeiner Stand der Technik.
Gemäß der Erfindung nach
Hauptpatent Nr. 41 35 257 ist im Hinblick auf eine Verbesserung
der Kontaktverhältnisse
im Kurvengelenk und zwar zwischen dem Nocken
Zur
Veränderung
der Ventilhubkurve ist der Hebel
In
der Patentschrift des Hauptpatentes ist unter Zugrundelegung der
dortigen Zeichnung eine weitere Ausführungsvariante offenbart, gemäß der die Lage
des Kurvengelenks
Die der vorliegenden Zusatzerfindung zugrunde liegenden konstruktiven und konzeptionellen Lösungsmerkmale werden – ausgehend vom beziehungsweise basierend auf dem Gegenstand der Haupterfindung – auf der Grundlage der weiteren zeichnerischen Darstellung erläutert.The the constructive basis underlying the present invention and conceptual solution features be - starting from or based on the subject of the main invention - on the Basis of the further graphic representation explained.
Im
Unterschied zur Haupterfindung ist das Abtriebsglied
Die
als konstruktives Element eingefügte Rampe
In
vorteilhafter Weiterbildung sollte nicht nur eine Rampe vorgesehen
werden, sondern es sollte gleichermaßen auch das Atriebsglied
Im
Hinblick auf die zeichnerische Darstellung soll noch folgendes angemerkt
werden:
In
Verbindung mit
Anhand
von
Gemäß dem Ausführungsbeispiel
nach
Gemäß dem Ausführungsbeispiel
nach
In
Verbindung mit
Claims (7)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19914135257 DE4135257C2 (en) | 1991-10-25 | 1991-10-25 | Device for actuating the valves in internal combustion engines by means of rotating cams |
DE4313656A DE4313656B4 (en) | 1991-10-25 | 1993-04-21 | Device for actuating the valves in internal combustion engines by means of rotating cams |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19914135257 DE4135257C2 (en) | 1991-10-25 | 1991-10-25 | Device for actuating the valves in internal combustion engines by means of rotating cams |
DE4313656A DE4313656B4 (en) | 1991-10-25 | 1993-04-21 | Device for actuating the valves in internal combustion engines by means of rotating cams |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4313656A1 DE4313656A1 (en) | 1994-10-27 |
DE4313656B4 true DE4313656B4 (en) | 2009-01-29 |
Family
ID=25908530
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19914135257 Expired - Lifetime DE4135257C2 (en) | 1991-10-25 | 1991-10-25 | Device for actuating the valves in internal combustion engines by means of rotating cams |
DE4313656A Expired - Lifetime DE4313656B4 (en) | 1991-10-25 | 1993-04-21 | Device for actuating the valves in internal combustion engines by means of rotating cams |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19914135257 Expired - Lifetime DE4135257C2 (en) | 1991-10-25 | 1991-10-25 | Device for actuating the valves in internal combustion engines by means of rotating cams |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE4135257C2 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4135257C2 (en) * | 1991-10-25 | 1998-09-03 | Peter Prof Dr Ing Kuhn | Device for actuating the valves in internal combustion engines by means of rotating cams |
DE10006018B4 (en) | 2000-02-11 | 2009-09-17 | Schaeffler Kg | Variable valve drive for load control of a spark-ignited internal combustion engine |
DE10006016B4 (en) * | 2000-02-11 | 2009-08-06 | Schaeffler Kg | Variable valve drive for load control of a spark-ignited internal combustion engine |
DE10016103A1 (en) * | 2000-03-31 | 2001-10-04 | Audi Ag | Variable valve timing |
DE10215281A1 (en) * | 2002-04-06 | 2003-10-16 | Willi Roth | Device for continuously varying the valve lift in internal combustion engines |
DE10261163A1 (en) * | 2002-12-20 | 2004-07-08 | Volkswagen Ag | Variable valve gear for internal combustion engine has intermediate component supported on support element which is displaceable in housing by means of adjusting shaft |
DE10302260B4 (en) * | 2003-01-22 | 2005-03-24 | Thyssenkrupp Automotive Ag | Device for actuating the charge exchange valves in reciprocating engines |
DE10312962A1 (en) * | 2003-03-24 | 2004-10-21 | Thyssen Krupp Automotive Ag | Device for actuating charge exchange valves in reciprocating engines |
DE10312958B4 (en) * | 2003-03-24 | 2005-03-10 | Thyssen Krupp Automotive Ag | Device for vairably actuating the gas exchange valves of internal combustion engines and method for operating such a device |
DE10342075A1 (en) * | 2003-09-10 | 2005-06-16 | Rolf Jung | Fully variable globe valve control of an internal combustion engine |
DE102005010484B3 (en) * | 2005-03-04 | 2006-10-26 | Thyssenkrupp Automotive Ag | Adjustment device for variable valve timing |
JP4726775B2 (en) * | 2006-12-20 | 2011-07-20 | ヤマハ発動機株式会社 | Continuously variable valve gear for engine |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983002301A1 (en) * | 1981-12-31 | 1983-07-07 | BAGUÉNA, Michel | Variable timing for four stroke engine |
JPS59188017A (en) * | 1983-03-08 | 1984-10-25 | Mazda Motor Corp | Valve resting mechanism in engine |
JPS59201913A (en) * | 1983-04-28 | 1984-11-15 | Mazda Motor Corp | Device making engine valve inoperative |
JPS60135610A (en) * | 1983-12-23 | 1985-07-19 | Nissan Motor Co Ltd | Suction/exhaust valve gear of internal-combustion engine |
US4538559A (en) * | 1982-09-03 | 1985-09-03 | Toyota Jidosha Kabushiki Kaisha | Engine cam for use in internal combustion engine |
JPS6123812A (en) * | 1984-07-11 | 1986-02-01 | Nissan Motor Co Ltd | Suction and exhaust valve lift control device for internal-combustion engine |
DE3833540A1 (en) * | 1988-10-01 | 1990-04-12 | Peter Prof Dr Ing Kuhn | DEVICE FOR ACTUATING THE VALVES OF INTERNAL COMBUSTION ENGINES WITH VARIABLE VALVE LIFTING CURVE |
DE4135257C2 (en) * | 1991-10-25 | 1998-09-03 | Peter Prof Dr Ing Kuhn | Device for actuating the valves in internal combustion engines by means of rotating cams |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1326183C (en) * | 1988-03-03 | 1994-01-18 | Hiroshi Shirai | Valve operating device for use in internal combustion engine |
US4995353A (en) * | 1990-04-11 | 1991-02-26 | General Motors Corporation | Valve train with lash/compliance compensation |
-
1991
- 1991-10-25 DE DE19914135257 patent/DE4135257C2/en not_active Expired - Lifetime
-
1993
- 1993-04-21 DE DE4313656A patent/DE4313656B4/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983002301A1 (en) * | 1981-12-31 | 1983-07-07 | BAGUÉNA, Michel | Variable timing for four stroke engine |
US4538559A (en) * | 1982-09-03 | 1985-09-03 | Toyota Jidosha Kabushiki Kaisha | Engine cam for use in internal combustion engine |
JPS59188017A (en) * | 1983-03-08 | 1984-10-25 | Mazda Motor Corp | Valve resting mechanism in engine |
JPS59201913A (en) * | 1983-04-28 | 1984-11-15 | Mazda Motor Corp | Device making engine valve inoperative |
JPS60135610A (en) * | 1983-12-23 | 1985-07-19 | Nissan Motor Co Ltd | Suction/exhaust valve gear of internal-combustion engine |
JPS6123812A (en) * | 1984-07-11 | 1986-02-01 | Nissan Motor Co Ltd | Suction and exhaust valve lift control device for internal-combustion engine |
DE3833540A1 (en) * | 1988-10-01 | 1990-04-12 | Peter Prof Dr Ing Kuhn | DEVICE FOR ACTUATING THE VALVES OF INTERNAL COMBUSTION ENGINES WITH VARIABLE VALVE LIFTING CURVE |
DE4135257C2 (en) * | 1991-10-25 | 1998-09-03 | Peter Prof Dr Ing Kuhn | Device for actuating the valves in internal combustion engines by means of rotating cams |
Non-Patent Citations (5)
Title |
---|
Patent abstracts of Japan & JP 59188017 A; * |
Patent abstracts of Japan & JP 59201913 A; * |
Patent abstracts of Japan & JP 60135610 A; * |
Patent abstracts of Japan & JP 61023812 A; * |
Patent abstracts of Japan: JP 61023812 A; Patent a bstracts of Japan: JP 60135610 A; Patent abstracts of Japan: JP 59201913 A; Patent abstracts of Japa n: JP 59188017 A |
Also Published As
Publication number | Publication date |
---|---|
DE4313656A1 (en) | 1994-10-27 |
DE4135257C2 (en) | 1998-09-03 |
DE4135257A1 (en) | 1993-04-29 |
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