EP0266511A1 - Valve-timing influencing device - Google Patents

Valve-timing influencing device Download PDF

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Publication number
EP0266511A1
EP0266511A1 EP87113017A EP87113017A EP0266511A1 EP 0266511 A1 EP0266511 A1 EP 0266511A1 EP 87113017 A EP87113017 A EP 87113017A EP 87113017 A EP87113017 A EP 87113017A EP 0266511 A1 EP0266511 A1 EP 0266511A1
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EP
European Patent Office
Prior art keywords
camshafts
devices
valves
camshaft
bearing
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Granted
Application number
EP87113017A
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German (de)
French (fr)
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EP0266511B1 (en
Inventor
Herbert Dipl.-Ing. Fh Ampferer
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Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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Publication of EP0266511A1 publication Critical patent/EP0266511A1/en
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    • 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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift

Definitions

  • the invention relates to a device for influencing the control times of valves of an internal combustion engine, the device having two devices which are arranged coaxially to one another and are provided with rotary motion transmitting elements, one of which is radially adjustable relative to the other and cooperates with a camshaft actuating the valves.
  • DE-OS 34 21 028 Also known is an internal combustion engine (DE-OS 34 21 028), in which two parallel camshafts, which actuate two intake valves and two exhaust valves per cylinder, are driven by a chain. A chain tensioner is provided between the load strand and the lost strand of the chain.
  • the object of the invention is to arrange the device so that on the one hand two parallel camshafts of an internal combustion engine are driven and on the other hand the control times of the valves can be influenced.
  • the device not only serves as a connecting link between the two camshafts, but also influences the valve timing, preferably intake valves.
  • the device requires little space due to the arrangement between the camshafts.
  • a multi-cylinder internal combustion engine 1 shows a cylinder head 2, which is fastened with screws 3, 4 to a housing, not shown, which comprises the cylinder and the crankcase.
  • a separating plane 5 is provided between the cylinder head 2 and the housing.
  • the cylinder head 2 is designed to accommodate two parallel camshafts 6, 7. Bearings 8, 9 and 10, 11 are used for this purpose.
  • the camshaft 7 has cams 12, 13 on both sides of the bearing, which cooperate with two intake valves per cylinder; the intake valves are not shown.
  • the other camshaft 6 comprises cams 14, 15 which are attached on both sides of the bearing 11.
  • the cams 14, 15 cooperate with two exhaust valves per cylinder, which are also not shown.
  • the inlet and outlet valves extend on axes 16, 17 that run in a V-shape.
  • the camshaft 7 is driven by means of an element 18, which transmits rotational movements - toothed or sprocket wheel - which is in a driving connection with an unillustrated crankshaft of internal combustion engine 1 via an endless link 19 - chain, toothed belt.
  • the camshaft 7 drives the camshaft 6 with the interposition of a device 20.
  • the camshaft 7 is designed to be adjustable for the purpose of influencing the timing of the intake valves, with other values, the camshaft 7 can have a different rotational position relative to the camshaft 6 exhibit.
  • the central longitudinal axis A-A of the devices 21, 22 rotating during operation of the internal combustion engine 1 lies on a central longitudinal plane B-B between the camshafts 6, 7.
  • the central longitudinal axis A-A is offset relative to a central transverse plane C-C of the camshafts 6, 7 - distance D -.
  • the central axis A-A is closer to the cylinders of the housing or the parting plane 5 than the central transverse plane C-C of the camshafts 6, 7.
  • journal ends 29, 30 which run coaxially with the devices 21, 22 and are received by bearings 31, 32 of the cylinder head 2.
  • Each bearing 31 or 32 has a bearing block 33 and a bearing cover 34 which is held on the bearing block 33 by screws 35, 36. The latter is firmly connected to the cylinder head 2.
  • the radial adjustment of the device 22 and the camshaft 7 for varying the timing of the intake valves relative to the exhaust valves is carried out hydraulically, depending on the load on the internal combustion engine, the hydraulic oil via oil bores 37, 38 in the bearing 32 or journal end 30 of the device 20 is fed.

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

Abstract

Diese Vorrichtung dient zur Bee influssung der Steuerzeiten von Einlaßventilen einer Brennkraftmaschine. Die Brennkraftmaschine umfasst zwei parallele Nockenwellen, die pro Zylinder zwei Einlaßventile und zwei Auslaßventile betätigen. Die Nockenwelle für die Auslaßventile treibt unter Zwischenschaltung der Vorrichtung die andere Nockenwelle an, mit der die Einlaßventile betätigt werden.This device is used to influence the control times of intake valves of an internal combustion engine. The internal combustion engine comprises two parallel camshafts, which actuate two intake valves and two exhaust valves per cylinder. The camshaft for the exhaust valves, with the interposition of the device, drives the other camshaft, with which the intake valves are actuated.

Description

Die Erfindung betrifft eine Vorrichtung zur Beeinflussung der Steuerzeiten von Ventilen einer Brennkraftmaschine, wobei die Vorrichtung zwei koaxial zueinander angeordnete und mit Drehbewegungen übertragenden Maschinenelementen versehene Einrichtungen aufweist, wovon eine relativ zur anderen radial verstellbar ist und mit einer die Ventile betätigenden Nockenwelle zusammenarbeitet.The invention relates to a device for influencing the control times of valves of an internal combustion engine, the device having two devices which are arranged coaxially to one another and are provided with rotary motion transmitting elements, one of which is radially adjustable relative to the other and cooperates with a camshaft actuating the valves.

Bei einer bekannten Vorrichtung der eingangs genannten Bauart (EP-A 0 147 209) wirken die Einrichtungen einerseits mit der Kurbelwelle und andererseits mit der Nockenwelle zusammen, wobei die Vorrichtung in Verlangerung der Nockenwelle angeordnet ist.In a known device of the type mentioned at the beginning (EP-A 0 147 209), the devices interact on the one hand with the crankshaft and on the other hand with the camshaft, the device being arranged in an extension of the camshaft.

Bekannt ist auch eine Brennkraftmaschine (DE-OS 34 21 028), bei der zwei parallel verlaufende Nockenwellen, die pro Zylinder zwei Einlaßventile und zwei Auslaßventile betätigen, mittels einer Kette anzutreiben. Zwischen dem Lasttrum und dem Lostrum der Kette ist ein Kettenspanner vorgesehen.Also known is an internal combustion engine (DE-OS 34 21 028), in which two parallel camshafts, which actuate two intake valves and two exhaust valves per cylinder, are driven by a chain. A chain tensioner is provided between the load strand and the lost strand of the chain.

Aufgabe der Erfindung ist es, die Vorrichtung so anzuordnen, daß einerseits zwei parallele Nockenwellen einer Brennkraftmaschine angetrieben werden und andererseits die Steuerzeiten der Ventile beeinflussbar sind.The object of the invention is to arrange the device so that on the one hand two parallel camshafts of an internal combustion engine are driven and on the other hand the control times of the valves can be influenced.

Erfindungsgemäß wird diese Aufgabe durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Weitere, die Erfindung ausgestaltende Merkmale sind in den Unteransprüchen enthalten.According to the invention, this object is achieved by the characterizing features of claim 1. Further features embodying the invention are contained in the subclaims.

Die mit der Erfindung hauptsächlich erzielten Vorteile sind darin zu sehen, daß die Vorrichtung nicht nur als Verbindungsglied zwischen den beiden Nockenwellen dient, sondern auch die Steuerzeiten der Ventile, vorzugsweise Einlaßventile, beeinflusst. Die Vorrichtung benötigt durch die Anordnung zwischen den Nockenwellen wenig Raum.The main advantages achieved with the invention are that the device not only serves as a connecting link between the two camshafts, but also influences the valve timing, preferably intake valves. The device requires little space due to the arrangement between the camshafts.

Außerdem ist sie leicht montierbar und gut abgestützt in den Lagern gehalten. Schließlich können Spannelemente zwischen Lostrum und Lasttrum üblicher Nockenwellen-Kettentriebe entfallen.It is also easy to install and well supported in the bearings. Finally, tensioning elements between the lost drum and load strand of conventional camshaft chain drives can be omitted.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung gezeigt, das nachstehend näher beschrieben wird.
Es zeigt

  • Fig. 1 einen Teilquerschnitt einer Brennkraftmaschine im Bereich eines Zylinderkopfs mit zwei parallelen Nockenwellen,
  • Fig. 2 einen Schnitt nach der Linie II-II der Fig. 1.
In the drawing, an embodiment of the invention is shown, which will be described in more detail below.
It shows
  • 1 shows a partial cross section of an internal combustion engine in the region of a cylinder head with two parallel camshafts,
  • 2 shows a section along the line II-II of FIG. 1st

Von der mehrzylindrigen Brennkraftmaschine 1 dargestellt ist ein Zylinderkopf 2, der mit Schrauben 3, 4 an einem nicht gezeigten Gehäuse befestigt ist, das Zylinder und Kurbelraum umfasst. Zwischen Zylinderkopf 2 und Gehäuse ist eine Trennebene 5 vorgesehen.A multi-cylinder internal combustion engine 1 shows a cylinder head 2, which is fastened with screws 3, 4 to a housing, not shown, which comprises the cylinder and the crankcase. A separating plane 5 is provided between the cylinder head 2 and the housing.

Der Zylinderkopf 2 ist zur Aufnahme von zwei parallelen Nockenwellen 6, 7 ausgebildet. Hierzu dienen Lager 8, 9 bzw. 10, 11. Die Nockenwelle 7 weist beiderseits des Lagers 9 Nocken 12, 13 auf, die mit zwei Einlaßventilen pro Zylinder zusammenarbeiten; die Einlaßventile sind nicht gezeigt. Die andere Nockenwelle 6 umfasst Nocken 14, 15, die zu beiden Seiten des Lagers 11 angebracht sind. Die Nocken 14, 15 wirken mit zwei Auslaßventilen pro Zylinder zusammen, die ebenfalls nicht dargestellt sind. Die Ein- und Auslaßventile erstrecken sich auf V-förmig zueinander verlaufenden Achsen 16, 17.The cylinder head 2 is designed to accommodate two parallel camshafts 6, 7. Bearings 8, 9 and 10, 11 are used for this purpose. The camshaft 7 has cams 12, 13 on both sides of the bearing, which cooperate with two intake valves per cylinder; the intake valves are not shown. The other camshaft 6 comprises cams 14, 15 which are attached on both sides of the bearing 11. The cams 14, 15 cooperate with two exhaust valves per cylinder, which are also not shown. The inlet and outlet valves extend on axes 16, 17 that run in a V-shape.

Der Antrieb der Nockenwelle 7 erfolgt mittels eines Drehbewegungen übertragenden Elements 18 - Zahn- oder Kettenrad - das über ein Endlosglied 19 - Kette, Zahnriemen - mit einer nicht gezeigten Kurbelwelle der Brennkraftmaschine 1 in treibender Verbindung steht. Die Nockenwelle 7 treibt unter Zwischenschaltung einer Vorrichtung 20 die Nockenwelle 6 an.The camshaft 7 is driven by means of an element 18, which transmits rotational movements - toothed or sprocket wheel - which is in a driving connection with an unillustrated crankshaft of internal combustion engine 1 via an endless link 19 - chain, toothed belt. The camshaft 7 drives the camshaft 6 with the interposition of a device 20.

Mit der Vorrichtung 20, die in der bereits erwähnten EP-A 0 147 209 detailliert beschrieben ist, ist die Nockenwelle 7 zum Zwecke der Beeinflussung der Steuerzeiten der Einlaßventile verstellbar ausgebildet, mit anderen Werten, die Nockenwelle 7 kann relativ zur Nockenwelle 6 eine unterschiedliche Drehstellung aufweisen.With the device 20, which is described in detail in the already mentioned EP-A 0 147 209, the camshaft 7 is designed to be adjustable for the purpose of influencing the timing of the intake valves, with other values, the camshaft 7 can have a different rotational position relative to the camshaft 6 exhibit.

Die Vorrichtung 20 bes itzt Einrichtungen 21, 22, die mit drehmomentübertragenden Maschinenelementen 23, 24 (= Zahnräder, Riemenräder) versehen sind und mit korrespondierenden Maschinenelementen 25, 26 der Nockenwelle 6 und 7 über als Gleichteile ausgebildete Endlosglieder 27, 28 wie Kette, Riemen oder dergleichen zusammenarbeiten. Die Mittellängsachse A-A der im Betrieb der Brennkraftmaschine 1 rotierenden Einrichtungen 21, 22 liegt auf einer Mittellängsebene B-B zwischen den Nockenwellen 6, 7. Außerdem ist die Mittellängsachse A-A relativ zu einer Mittelquerebene C-C der Nockenwellen 6, 7 versetzt - Abstand D -. Im Ausführungsbeispiel ist aus Gründen der Raumeinsparung die Mittelachse A-A näher an den Zylindern des Gehäuses bzw. der Trennebene 5 als die Mittelquerebene C-C der Nockenwellen 6, 7.The device 20 has devices 21, 22, which are provided with torque-transmitting machine elements 23, 24 (= toothed wheels, belt wheels) and with corresponding machine elements 25, 26 of the camshafts 6 and 7 via endless links 27, 28, such as chains, belts or which are designed as identical parts the like work together. The central longitudinal axis A-A of the devices 21, 22 rotating during operation of the internal combustion engine 1 lies on a central longitudinal plane B-B between the camshafts 6, 7. In addition, the central longitudinal axis A-A is offset relative to a central transverse plane C-C of the camshafts 6, 7 - distance D -. In the exemplary embodiment, for reasons of saving space, the central axis A-A is closer to the cylinders of the housing or the parting plane 5 than the central transverse plane C-C of the camshafts 6, 7.

Zur Halterung der Vorrichtung 20 ist diese mit Lagerzapfenenden 29, 30 versehen, die koaxial zu den Einrichtungen 21, 22 verlaufen und von Lagern 31, 32 des Zylinderkopfs 2 aufgenommen sind. Jedes Lager 31 oder 32 weist einen Lagerstuhl 33 und einen Lagerdeckel 34 auf, der mit Schrauben 35, 36 am Lagerstuhl 33 gehalten ist. Letzterer ist fest mit dem Zylinderkopf 2 verbunden.To hold the device 20, it is provided with journal ends 29, 30 which run coaxially with the devices 21, 22 and are received by bearings 31, 32 of the cylinder head 2. Each bearing 31 or 32 has a bearing block 33 and a bearing cover 34 which is held on the bearing block 33 by screws 35, 36. The latter is firmly connected to the cylinder head 2.

Die radiale Verstellung der Einrichtung 22 und der Nockenwelle 7 zur Variierung der Steuerzeiten der Einlaßventile relativ zu den Auslaßventilen erfolgt hydraulisch und zwar in Abhängigkeit von der Belastung der Brennkraftmaschine, wobei das Hydrauliköl uber Ölbohrungen 37, 38 im Lager 32 bzw. Lagerzapfenende 30 der Vorrichtung 20 zugeführt wird. The radial adjustment of the device 22 and the camshaft 7 for varying the timing of the intake valves relative to the exhaust valves is carried out hydraulically, depending on the load on the internal combustion engine, the hydraulic oil via oil bores 37, 38 in the bearing 32 or journal end 30 of the device 20 is fed.

Claims (9)

1. Vorrichtung zur Beeinflussung der Steuerzeiten von Ventilen einer Brennkraftmaschine, wobei die Vorrichtung zwei koaxial zueinander angeordnete und mit Drehbewegungen übertragenden Maschinenelementen versehene Einrichtungen aufweist, wovon eine relativ zur anderen radial verstellbar ist und mit einer die Ventile betätigenden Nockenwelle zusammenarbeitet, dadurch gekennzeichnet, daß die Vorrichtung (20) zwischen zwei an sich bekannten, oberhalb der Ventile in einem Zylinderkopf (2) gelagerten Nockenwellen (6, 7) vorgesehen ist und mittels den Maschinenelementen (23, 24) der Einrichtungen (21, 22) mit korrespondierenden Maschinenelementen (25, 26) der Nockenwellen (6, 7) in Verbindung steht.1. Device for influencing the timing of valves of an internal combustion engine, the device having two coaxially arranged and with rotary motion transmitting machine elements, one of which is radially adjustable relative to the other and cooperates with a camshaft actuating the valves, characterized in that the Device (20) is provided between two camshafts (6, 7) known per se, which are mounted above the valves in a cylinder head (2), and by means of the machine elements (23, 24) of the devices (21, 22) with corresponding machine elements (25, 26) the camshafts (6, 7) is connected. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Maschinenelemente (23, 24 und 25, 26) der Einrichtungen (21, 22) bzw. der Nockenwellen (6, 7) mittels Endlosglieder (27, 28) zusammenwirken.2. Device according to claim 1, characterized in that the machine elements (23, 24 and 25, 26) of the devices (21, 22) or the camshafts (6, 7) interact by means of endless links (27, 28). 3.Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Mittellängsachse (A-A) der Einrichtungen (21, 22) auf einer Mittellängsebene (B-B) zwischen den Nockenwellen (6, 7) liegt.3.Device according to claim 2, characterized in that the central longitudinal axis (A-A) of the devices (21, 22) lies on a central longitudinal plane (B-B) between the camshafts (6, 7). 4. Vorrichtung nach den Ansprüchen 2 und 3, dadurch gekennzeichnet, daß die beiden Endlosglieder (27, 28) Gleichteile sind.4. Device according to claims 2 and 3, characterized in that the two endless links (27, 28) are identical parts. 5. Vorrichtung nach den Ansprüchen 2 bis 4, dadurch gekennzeichnet, daß die Mittellängsachse (A-A) der Einrichtungen (21, 22) relativ zu einer gemeinsamen Mittelquerebene (C-C) der Nockenwelle (6, 7) versetzt ist (Abstand D).5. Device according to claims 2 to 4, characterized in that the central longitudinal axis (A-A) of the devices (21, 22) is offset relative to a common central transverse plane (C-C) of the camshaft (6, 7) (distance D). 6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Mittelachse (A-A) der Einrichtungen (21, 22) näher am Zylinder der Brennkraftmaschine (1) liegt als die gemeinsame Mittelquerebene (C-C) der Nockenwellen (6, 7).6. The device according to claim 5, characterized in that the central axis (AA) of the devices (21, 22) is closer to the cylinder of the internal combustion engine (1) than the common central transverse plane (CC) of the camshafts (6, 7). 7. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß sie koaxial zu den Einrichtungen (21, 22) verlaufende Lagerzapfenenden (29, 30) aufweist, die in Lagern (31, 32) des Zylinderkopfs (2) gehalten sind.7. The device according to claim 1, characterized in that it has coaxial to the devices (21, 22) extending journal ends (29, 30) which are held in bearings (31, 32) of the cylinder head (2). 8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß jedes Lager (31 oder 32) einen Lagerstuhl (33) und einen an diesem durch Schrauben (35, 36) befestigten Lagerdeckel (34) gebildet wird.8. The device according to claim 7, characterized in that each bearing (31 or 32) is formed a bearing block (33) and on this by screws (35, 36) bearing cap (34). 9. Vorrichtung mit Ölbohrungen fir das Hydrauliköl nach Anspruch 7, dadurch gekennzeichnet, daß die Ölbohrungen (37, 38) in dem Lager (31) bzw. dem Lagerzapfenende (29) vorgesehen sind.9. Device with oil bores for the hydraulic oil according to claim 7, characterized in that the oil bores (37, 38) in the bearing (31) or the journal end (29) are provided.
EP87113017A 1986-11-07 1987-09-05 Valve-timing influencing device Expired - Lifetime EP0266511B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863638087 DE3638087A1 (en) 1986-11-07 1986-11-07 DEVICE FOR INFLUENCING THE VALVE CONTROL TIMES
DE3638087 1986-11-07

Publications (2)

Publication Number Publication Date
EP0266511A1 true EP0266511A1 (en) 1988-05-11
EP0266511B1 EP0266511B1 (en) 1990-12-12

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EP87113017A Expired - Lifetime EP0266511B1 (en) 1986-11-07 1987-09-05 Valve-timing influencing device

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US (1) US4805566A (en)
EP (1) EP0266511B1 (en)
JP (1) JP2563116B2 (en)
DE (2) DE3638087A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0367192A1 (en) * 1988-10-29 1990-05-09 Mazda Motor Corporation Valve driving mechanism for internal combustion engine
EP0424103A1 (en) * 1989-10-16 1991-04-24 BORG-WARNER AUTOMOTIVE TRANSMISSION & ENGINE COMPONENTS CORPORATION Variable camshaft timing for internal combustion engine
US5507254A (en) * 1989-01-13 1996-04-16 Melchior; Jean F. Variable phase coupling for the transmission of alternating torques
US5645017A (en) * 1989-01-13 1997-07-08 Melchior; Jean Frederic Coupling for the transmission of alternating torques
WO2019055580A1 (en) 2017-09-12 2019-03-21 Sila Nanotechnologies, Inc. Electrolyte for a metal-ion battery cell with high-capacity, micron-scale, volume-changing anode particles

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US5002023A (en) * 1989-10-16 1991-03-26 Borg-Warner Automotive, Inc. Variable camshaft timing for internal combustion engine
GB8925869D0 (en) * 1989-11-15 1990-01-04 Jaguar Cars Rotary drives
US4974560A (en) * 1990-03-21 1990-12-04 King Brian T Mechanism for varying valve duration in an internal combustion engine
DE4104872A1 (en) * 1991-02-18 1992-08-20 Wolfgang Schieck Throttle-free load control for Otto engine - using two inlet valves per cylinder operated by two cam shafts
US5542383A (en) * 1995-05-04 1996-08-06 Ford Motor Company Dual output camshaft phase controller
JP2000154731A (en) * 1998-11-18 2000-06-06 Yamaha Motor Co Ltd Power transmission device for four-cycle engine
JP4040779B2 (en) * 1998-12-25 2008-01-30 ヤマハ発動機株式会社 Engine valve timing control device and valve timing control method
JP2001073718A (en) * 1999-09-03 2001-03-21 Yamaha Motor Co Ltd Valve system for engine
WO2006047099A2 (en) 2004-10-26 2006-05-04 George Louie Continuously variable valve timing device
JP5113005B2 (en) * 2008-09-30 2013-01-09 本田技研工業株式会社 Internal combustion engine with variable valve gear
JP5066504B2 (en) * 2008-09-30 2012-11-07 本田技研工業株式会社 Internal combustion engine and motorcycle with variable valve gear
JP5113007B2 (en) * 2008-09-30 2013-01-09 本田技研工業株式会社 Internal combustion engine with variable valve gear
JP5113006B2 (en) * 2008-09-30 2013-01-09 本田技研工業株式会社 Internal combustion engine with variable valve gear

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US1885796A (en) * 1930-02-15 1932-11-01 Eoulet Georges Valve operating mechanism
US3224423A (en) * 1965-06-03 1965-12-21 John L Ostborg Valve timing control system for supercharged automotive engine
EP0147209A2 (en) * 1983-12-30 1985-07-03 RENOLD Plc Phasing device for machinery applications
DE3421028A1 (en) * 1984-06-06 1985-12-12 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart CAMSHAFT DRIVE OF AN INTERNAL COMBUSTION ENGINE

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US3878822A (en) * 1974-01-07 1975-04-22 Robert G Beal Multiple cam mechanism for internal combustion engines
DE3509094A1 (en) * 1984-04-06 1985-10-17 Volkswagenwerk Ag, 3180 Wolfsburg Device for the infinitely variable adjustment of the valve timings of exhaust and refill valves
US4741299A (en) * 1985-01-26 1988-05-03 Honda Giken Kogyo Kabushiki Kaisha Internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1885796A (en) * 1930-02-15 1932-11-01 Eoulet Georges Valve operating mechanism
US3224423A (en) * 1965-06-03 1965-12-21 John L Ostborg Valve timing control system for supercharged automotive engine
EP0147209A2 (en) * 1983-12-30 1985-07-03 RENOLD Plc Phasing device for machinery applications
DE3421028A1 (en) * 1984-06-06 1985-12-12 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart CAMSHAFT DRIVE OF AN INTERNAL COMBUSTION ENGINE

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0367192A1 (en) * 1988-10-29 1990-05-09 Mazda Motor Corporation Valve driving mechanism for internal combustion engine
US5507254A (en) * 1989-01-13 1996-04-16 Melchior; Jean F. Variable phase coupling for the transmission of alternating torques
US5645017A (en) * 1989-01-13 1997-07-08 Melchior; Jean Frederic Coupling for the transmission of alternating torques
US5649506A (en) * 1989-01-13 1997-07-22 Melchior; Jean Frederic Coupling for the transmission of alternating torques
EP0424103A1 (en) * 1989-10-16 1991-04-24 BORG-WARNER AUTOMOTIVE TRANSMISSION & ENGINE COMPONENTS CORPORATION Variable camshaft timing for internal combustion engine
US5046460A (en) * 1989-10-16 1991-09-10 Borg-Warner Automotive Transmission & Engine Components Corporation Variable camshaft timing for internal combustion engine
WO2019055580A1 (en) 2017-09-12 2019-03-21 Sila Nanotechnologies, Inc. Electrolyte for a metal-ion battery cell with high-capacity, micron-scale, volume-changing anode particles

Also Published As

Publication number Publication date
JP2563116B2 (en) 1996-12-11
JPS63140808A (en) 1988-06-13
US4805566A (en) 1989-02-21
DE3638087A1 (en) 1988-05-11
DE3766690D1 (en) 1991-01-24
EP0266511B1 (en) 1990-12-12

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