DE3438847A1 - Valve arrangement in the cylinder head of an internal combustion engine - Google Patents

Valve arrangement in the cylinder head of an internal combustion engine

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Publication number
DE3438847A1
DE3438847A1 DE19843438847 DE3438847A DE3438847A1 DE 3438847 A1 DE3438847 A1 DE 3438847A1 DE 19843438847 DE19843438847 DE 19843438847 DE 3438847 A DE3438847 A DE 3438847A DE 3438847 A1 DE3438847 A1 DE 3438847A1
Authority
DE
Germany
Prior art keywords
valve
cylinder head
combustion chamber
disk
axis
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Withdrawn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
DE19843438847
Other languages
German (de)
Inventor
Karl Friedrich von 2357 Bad Bramstedt Grünberg
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19843438847 priority Critical patent/DE3438847A1/en
Publication of DE3438847A1 publication Critical patent/DE3438847A1/en
Withdrawn legal-status Critical Current

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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
    • F01L1/28—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of coaxial valves; characterised by the provision of valves co-operating with both intake and exhaust ports
    • F01L1/285—Coaxial intake and exhaust valves

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

Valve arrangement in the cylinder head of an internal combustion engine in which two valve discs and their valve shanks are arranged on a common axis and are movable in this axis separately of one another, the two valve discs and their valve seats being at an interval from one another in the direction of this axis and the valve disc facing the combustion chamber having recesses.

Description

PATENTANWALTSBÜRO SCHUMANNSTR. 97 D-4OOO DÜSSELDORF 1PATENT AGENCY OFFICE SCHUMANNSTR. 97 D-4OOO DÜSSELDORF 1

Telefon:(0211) 683346 Telex;08586513 copdTelephone: (0211) 683346 Telex; 08586513 copd

PATENTANWÄLTE:
DipL-lng. W. COHAUSZ · Dipl.-Ing. R. KNAUF - DipHng. H. B. COHAUSZ · Dipl.-Ing. D. H. WERNERPATENT LAWYERS:
DipL-lng. W. COHAUSZ Dipl.-Ing. R. KNAUF - DipHng. HB COHAUSZ Dipl.-Ing. DH WERNER

Karl Friedrich, von Grünberg
Maienbass 22Karl Friedrich, von Grünberg
May bass 22

2357 Bad Bramstedt2357 Bad Bramstedt

Ventilanordnung im Zylinderkopf eines VerbrennungsmotorsValve arrangement in the cylinder head of an internal combustion engine

•ic Die Erfindung betrifft eine Ventilanordnung im Zylinderkopf eines Verbrennungsmotors. Es ist bekannt, zur Verbesserung des Liefergrades bei Saugmotoren mehr als zwei Ventile je Zylinder vorzusehen, was aber den Nachteil einer zusätzlich erforderlichen Nockenwelle und somit die Vergröße-• ic The invention relates to a valve arrangement in the cylinder head of an internal combustion engine. It is known to improve the degree of delivery in naturally aspirated engines more than two Provide valves for each cylinder, but this has the disadvantage of an additionally required camshaft and thus the enlargement

2Q rung an Arbeitsaufwand, Kosten, Gewicht und Reibungsverlusten hat.2Q tion of workload, costs, weight and friction losses Has.

Aufgabe der Erfindung ist, anstelle von mehreren Ventilen je Zylinder und zwei Nockenwellen nur zwei Ventile und nur eine Nockenwelle vorzusehen, um mindestens einen gleich hohen Liefergrad zu ermöglichen.The object of the invention is, instead of several valves Provide only two valves and only one camshaft for each cylinder and two camshafts, in order to achieve at least one to enable the same high degree of delivery.

Gemäß der Erfindung wird diese Aufgabe dadurch gelöst, daß im Zylinderkopf zwei Ventilteller und deren Ventilschäfte 2q in einer gemeinsamen Achse angeordnet und in dieser AchseAccording to the invention, this object is achieved in that two valve plates and their valve stems in the cylinder head 2q arranged in a common axis and in this axis

- 4 getrennt voneinander bewegbar sind, wobei die beiden Ventilteller und ihre Ventilsitze in Richtung dieser Achse einen Abstand voneinander haben und der dem Brennraum zugekehrte Ventilteller Ausnehmungen hat. Durch eine solche Anordnung kann sogar ein Strömungsquerschnitt und ein entsprechender Liefergrad erreicht werden, der größer ist als er durch Anordnung mehrerer Ventile erreicht wird.
Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung.- 4 can be moved separately from one another, the two valve plates and their valve seats being at a distance from one another in the direction of this axis and the valve plate facing the combustion chamber having recesses. Such an arrangement can even achieve a flow cross-section and a corresponding degree of delivery that is greater than that achieved by arranging a plurality of valves.
The drawing shows an embodiment of the invention.

^ 10 Fig. 1 zeigt einen Schnitt durch das Zylinderkopfgehäuse und die Ventilschäfte,^ 10 Fig. 1 shows a section through the cylinder head housing and the valve stems,

Fig. 2 zeigt eine Teil-Seitenansicht.Fig. 2 shows a partial side view.

Ein hohler, einen Ventilteller 13 tragender Ventilschaft 7 ist in einer zum Zylinderkopf 12 gehörenden Führung geführt. Am anderen Ende des Ventilschaftes 7 ist ein Federteller 6 mittels Seegerringen 5 befestigt, und zwischen ihm und einer Fläche des Zylinderkopfgehäuses 12 eine Druckfeder 8 angeordnet, durch die der Ventilteller 13 zur Anlage an den Ventilsitz 19 gebracht wird. In dem hohlen Ventilschaft 7 ist ein einen Ventilteller <■>*' tragender Ventilschaft 21 axial geführt, wobei an einenA hollow valve stem carrying a valve disk 13 7 is guided in a guide belonging to the cylinder head 12. At the other end of the valve stem 7 is a The spring plate 6 is fastened by means of circlips 5, and between it and a surface of the cylinder head housing 12 a compression spring 8 is arranged, by means of which the valve disk 13 is brought into contact with the valve seat 19. In the hollow valve stem 7 is guided axially with a valve stem 21 carrying a valve disk, with one

Sockel 9 des Zylindergehäuses 12 sich abstützende Federn 4 über einen mit dem Ventilschaft 21 verbundenen Federteller 3 den Ventilteller 14 zur Anlage an die Ventilsitze 17 und 18 bringen, die in Richtung ihrer Achse einen Abstand voneinander haben.The base 9 of the cylinder housing 12 supports springs 4 via a spring plate connected to the valve stem 21 3 bring the valve plate 14 to rest on the valve seats 17 and 18, which in the direction of their axis Have a distance from each other.

Gegenüber dem Brennraum 26 dichtet der Ventilteller 13 den Abgaskanal 10, der Ventilteller 14 den Ansaugkanal 11 ab. Diese Kanäle 10 und 11 sind um die Ventilteller 13 und 14 herum und teilweise übereinander, jedoch voneinander getrennt angeordnet. Ein um ein Lager 22 schwenkbarer doppelarmiger Hebel 1 ist von einem der Nocken 24,Compared to the combustion chamber 26, the valve disk 13 seals the exhaust gas duct 10, and the valve disk 14 seals the intake duct 11 from. These channels 10 and 11 are around the valve head 13 and 14 around and partially on top of each other, but from each other arranged separately. A double-armed lever 1 pivotable about a bearing 22 is supported by one of the cams 24,

einer Nockenwelle 23 schwenkbar und hat andererseits zwei Hebelarme, die an zwei gegenüberliegenden Seiten des Federtellers 6 anliegen und bei Betätigung des Hebels 1 den Ventilteller 13 vom Ventilsitz 19 abheben. Durch einen ebenfalls auf dem Lager 22 sitzenden und von einem der Nocken der Nockenwelle 23 schwenkbaren Hebel 2, der den Ventilschaft 21 beaufschlagt, kann der Ventilteller 14 von seinen Ventilsitzen 1 7■und 18 abgehoben werden.a camshaft 23 and, on the other hand, has two lever arms which are located on two opposite sides of the The spring plate 6 and when the lever 1 is actuated lift the valve plate 13 off the valve seat 19. By a lever 2, also seated on the bearing 22 and pivotable by one of the cams of the camshaft 23, of the when the valve stem 21 is acted upon, the valve disk 14 can be lifted off its valve seats 17 and 18.

, 10 Der Ventilteller 14 weist auf seinem Umfang verteilte Ausnehmungen 15 sowie einen Hohlraum 16 auf, in den die Ausnehmungen 15 münden, und der so groß ist, daß der Ventilteller 13 reibungsfrei in ihn eintauchen kann., 10 The valve disk 14 has recesses distributed over its circumference 15 and a cavity 16 in which the recesses 15 open, and which is so large that the valve disk 13 can dip into it without friction.

Bei abgehobenem Ventilteller 13 und geschlossenem Ventilteller 14 strömt Abgas aus dem Brennraum 26 durch die Ausnehmungen 15 des Ventiltellers 14 hindurch in den Abgaskanal 10, wobei der Ventilteller 13 in den Hohlraum 16 des Ventiltellers 14 eintaucht. Bei abgehobenen Ventilteller 14 und geschlossenem Ventilteller 13 strömt Gas aus dem Ansaugkanal 11 um den Ventilteller 14 herum, und durch den Hohlraum 16 und die Ausnehmungen 15 in v.»'· den Brennraum 26 .With the valve disk 13 raised and the valve disk closed 14, exhaust gas flows from the combustion chamber 26 through the recesses 15 of the valve disk 14 into the exhaust gas duct 10, the valve disk 13 dipping into the cavity 16 of the valve disk 14. With the valve disk lifted 14 and the valve disk 13 is closed, gas flows out of the intake duct 11 around the valve disk 14, and through the cavity 16 and the recesses 15 in v. »'· the combustion chamber 26.

Wie Fig. 2 zeigt, hat die Nockenwelle 23 zwei Nocken 24 und 25, von denen der eine den Hebel 1 und der andere den Hebel 2 beaufschlagt, die auf demselben Kipphebellager 22 gelagert sind. Der Hebel 1 trifft beiderseits auf den Ventilteller 6, der Kipphebel 2 auf das obere Ende des Ventilschaftes 21.As shown in FIG. 2, the camshaft 23 has two cams 24 and 25, one of which is the lever 1 and the other the lever 2 is applied, which is on the same rocker arm bearing 22 are stored. The lever 1 meets the valve disk 6 on both sides, the rocker arm 2 meets the upper one End of valve stem 21.

3535

Claims (3)

PATENTANWALTSBÜRO SCHUMANNSTR. 97 D-4000 DÜSSELDORF 1PATENT OFFICE SCHUMANNSTR. 97 D-4000 DÜSSELDORF 1 Tetefon: (0211) 6833 46 Telex: 0858 6513 cop dTetphone: (0211) 6833 46 Telex: 0858 6513 cop d PATENTANWÄLTE:
DipHng. W. COHAUSZ ■ Dipl.-Ing. R KNAUF · DipWng. H. B. COHAUSZ · Dipl.-Ing. D. H. WERNERPATENT LAWYERS:
DipHng. W. COHAUSZ ■ Dipl.-Ing. R KNAUF DipWng. HB COHAUSZ Dipl.-Ing. DH WERNER P atentans prüchePatent claims f1.)Ventilanordnung im Zylinderkopf eines Verbrennungsmotors ,f1.) Valve arrangement in the cylinder head of an internal combustion engine , dadurch gekennzeichnet/ daß zwei Ventilteller (13, 14) und deren Ventilschäfte (7, 21) in einer gemeinsamen Achse angeordnet und in dieser Achse getrennt voneinander bewegbar sind, wobei die beiden Ventilteller (13, 14) 10characterized / that two valve plates (13, 14) and their valve stems (7, 21) are arranged in a common axis and can be moved separately from one another in this axis, the two valve disks (13, 14) 10 und ihre Ventilsitze (17, 18, 19) in Richtung dieser Achse einen Abstand voneinander haben und der dem Brennraum (26) zugekehrte Ventilteller (14) Ausnehmungen (15) hat.and their valve seats (17, 18, 19) in the direction of this Axis are at a distance from one another and the valve disk (14) facing the combustion chamber (26) has recesses (15) has. 2. Ventilanordnung nach Anspruch 1, dadurch gekennzeichnet, daß der Rand de$ dem Brennraum (26) zugekehrten Ventiltellers (14) zwei Anschlagflächen aufweist,2. Valve arrangement according to claim 1, characterized in that that the edge of the $ facing the combustion chamber (26) Valve disk (14) has two stop surfaces, die beim Schließen dieses Ventils an zwei in Ab-20 when closing this valve on two in Ab-20 stand voneinander liegenden Ventilsitzen (17, 1g) anliegen.stood apart valve seats (17, 1g) issue. 3. Ventilanordnung nach Anspruch 1 oder 2,3. Valve arrangement according to claim 1 or 2, dadurch gekennzeichnet, 25characterized in that 25 daß in dem die Ventilteller (.13, 14) umgebenden Bereich des Zylinderkopfes (12) zwei voneinander getrennte Räume (10, 11) vorgesehen sind, von denen der eine mit der Ansaugleitung, der andere mit der Abgasleitung verbunden ist, und daß die Ventil-that in the area of the cylinder head (12) surrounding the valve plate (.13, 14) two of each other separate rooms (10, 11) are provided, one of which with the suction line, the other with the Exhaust pipe is connected, and that the valve teller (13, 14) so angeordnet sind, daß sie inplates (13, 14) are arranged so that they are in Schließstellung diese Räume (10, 11) gegeneinander abschließen.In the closed position, these spaces (10, 11) close off from one another. Ventilanordnung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der dem Brennraum (26) zugekehrte Ventilteller (14) auf seiner dem Brennraum (26) abgekehrten Seite eine Ausnehmung (16) hat, die so groß ist, daß der andere Ventilteller (13) in sie hineinbewegbar ist.Valve arrangement according to one of Claims 1 to 3, characterized in that that the valve disk (14) facing the combustion chamber (26) faces away from the combustion chamber (26) Side has a recess (16) which is so large that the other valve disk (13) can be moved into it is.
DE19843438847 1984-10-24 1984-10-24 Valve arrangement in the cylinder head of an internal combustion engine Withdrawn DE3438847A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19843438847 DE3438847A1 (en) 1984-10-24 1984-10-24 Valve arrangement in the cylinder head of an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843438847 DE3438847A1 (en) 1984-10-24 1984-10-24 Valve arrangement in the cylinder head of an internal combustion engine

Publications (1)

Publication Number Publication Date
DE3438847A1 true DE3438847A1 (en) 1986-04-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843438847 Withdrawn DE3438847A1 (en) 1984-10-24 1984-10-24 Valve arrangement in the cylinder head of an internal combustion engine

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DE (1) DE3438847A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335924A1 (en) * 1987-08-18 1989-10-11 Charles W Bergeron Poppet valve assembly with apertures.
US5671704A (en) * 1996-03-18 1997-09-30 Peng; Huei Cylinder head with colander valve
WO2012149915A2 (en) 2011-05-03 2012-11-08 Knob Engines S.R.O. Cylinder head with ring-shaped valve for internal combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335924A1 (en) * 1987-08-18 1989-10-11 Charles W Bergeron Poppet valve assembly with apertures.
EP0335924A4 (en) * 1987-08-18 1989-12-18 Charles W Bergeron Poppet valve assembly with apertures.
US5671704A (en) * 1996-03-18 1997-09-30 Peng; Huei Cylinder head with colander valve
WO2012149915A2 (en) 2011-05-03 2012-11-08 Knob Engines S.R.O. Cylinder head with ring-shaped valve for internal combustion engine

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