EP0873468B1 - Rotary valve control system for internal combustion engines and reciprocating pumps - Google Patents

Rotary valve control system for internal combustion engines and reciprocating pumps Download PDF

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Publication number
EP0873468B1
EP0873468B1 EP96932597A EP96932597A EP0873468B1 EP 0873468 B1 EP0873468 B1 EP 0873468B1 EP 96932597 A EP96932597 A EP 96932597A EP 96932597 A EP96932597 A EP 96932597A EP 0873468 B1 EP0873468 B1 EP 0873468B1
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EP
European Patent Office
Prior art keywords
rotary valve
cylinder
cylinder head
valve control
seal rings
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Expired - Lifetime
Application number
EP96932597A
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German (de)
French (fr)
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EP0873468A1 (en
Inventor
Franz Stanislav Bartos
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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
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
    • F01L7/028—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves having the rotational axis coaxial with the cylinder axis and the valve surface not surrounding piston or cylinder
    • 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
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/10—Rotary or oscillatory slide valve-gear or valve arrangements with valves of other specific shape, e.g. spherical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

Definitions

  • the invention relates to a rotary slide control for Internal combustion engines and piston pumps with one Cylinder head, in which a rotationally symmetrical, dome-shaped, with one coupled with a drive Rotary valve is arranged rotatable about the cylinder axis and in the cylinder head at least one intake port and at least one outlet channel provided, and in Rotary slide valve one with the inlet channel and the outlet channel Corresponding control opening are provided, in which in the area of the inlet duct and the outlet duct at least on the side of the cylinder facing the A freely rotatable sealing ring is arranged, the rotary valve is driven in the middle and the Cylinder head and the cylinder on both sides of the Rotary valve are provided with cooling channels.
  • the technical problem underlying the invention therefore consists in the known known Rotary valve control with regard to their Reliability, resilience, service life and Improve thrift.
  • the rotatable Seals have a multiple function. Because now regardless of the rotation of the rotary valve mechanically or preferably hydraulically driven they are also lubricated and cooled.
  • the sealing rings on the outside i.e. the one on the cylinder opposite side of the rotary valve not only seal the Rotary valve from the inlet and outlet channels, but they also act as thrust bearings around which the Pistons generated and acting on the rotary valve Dampen compressive forces.
  • the sealing rings which act as axial bearings, also prevent a possible vibration of the rotary valve when changing the load during the operation of the device. This allows the wall thickness of the rotary valve at the same time reduce so that less heat is stored in it and the momentum caused by their mass be reduced.
  • the suspension unit can also be fitted with in their spring characteristics of controllable springs to be - for example in one application Internal combustion engine - the engine characteristics to the Adjust requirements and for example a higher one To be able to achieve torque.
  • Fig. 1 are the cylinder 7 with the arranged therein Recognize piston 9 and the cylinder head 8.
  • cylinder head 8 and cylinder 7 have cavities 10 for receiving Coolant.
  • the rotary valve 1 provided with a collar 11 arranged.
  • the upper end of the collar 11 is non-positively provided with a drive wheel 12.
  • the Middle part of the cylinder head 8 has a cup-shaped Well 13 on, in the bottom of an opening for the Inclusion of an ignition device, for example one Spark plug is provided.
  • the suspension device 16 switched on.
  • the exhaust port 6 can be seen in the cylinder head 8, which compared to the rotary valve 1 by rotatable Sealing rings 2 and 3 are sealed. Sealing rings 14 and 15 are also used to seal the collar 11 against the Cylinder 7 and the cylinder head 8 are provided.
  • Fig. 1 is in the area of the outer Edge of the rotary valve 1 in the cylinder head 8 circumferential channel available, which via the opening 17th communicates with the outside atmosphere.
  • the sealing rings 3 are also axial bearings trained so that the compression of the Damp the rotary valve acting forces. If one during the operation of the device controllable Suspension device 16 is used, the Ejection clock of the device can be influenced the operating characteristics adapted and for example a higher torque can be achieved.
  • FIG. 2 shows the relative position in a snapshot the opening 4 in the rotary valve 1 opposite the inlet channel 5 and the exhaust port 6 in the cylinder head 8 at one certain rotational position of the rotary valve 1.
  • the rotary valve 1 is arranged in the center of the cylinder head. Due to the coolant contained in the cavities 10 Cylinder 7 and cylinder head 8 and thus also the Rotary valve 1 cooled.
  • the facing the rotary valve 1 Surfaces of the cylinder head 8 and the cylinder 7 are on adapted the spherical shape of the rotary valve 1.
  • the rotating sealing rings 2 and 3 which - as shown - installed on both sides of the inlet and outlet duct for the required sealing during operation.
  • the degree of compression is not caused by a glowing valve limited.
  • the flow in the inlet and outlet channels becomes by approx. 40% compared to valve actuated inputs and Exhaust openings improved.
  • One by valve springs power loss caused does not occur.
  • the speed limit is shifted to higher speeds. The The engine runs more smoothly and quietly. The better one Utilization of the fuel leads to protection of the Environment.

Description

Die Erfindung betrifft eine Drehschiebersteuerung für Verbrennungsmaschinen und Kolbenpumpen mit einem Zylinderkopf, in dem ein rotationsymmetrischer, kalottenförmiger ,mit mit einem Antrieb gekoppelter Drehschieber um die Zylinderachse drehbar angeordnet ist und im Zylinderkopf wenigstens ein Einlaßkanal und wenigstens ein Auslaßkanal vorgesehen, sowie im Drehschieber eine mit dem Einlaßkanal bzw. dem Auslaßkanal korrespondierende Steueröffnung vorgesehen sind, bei dem im Bereich des Einlaßkanals und des Auslaßkanals wenigstens auf der dem Zylinder zugewandten Seite des Drehschiebers ein frei drehbarer Dichtring angeordnet ist, der Drehschieber mittig angetrieben ist und der Zylinderkopf und der Zylinder zu beiden Seiten des Drehschiebers mit Kühlkanälen versehen sind.The invention relates to a rotary slide control for Internal combustion engines and piston pumps with one Cylinder head, in which a rotationally symmetrical, dome-shaped, with one coupled with a drive Rotary valve is arranged rotatable about the cylinder axis and in the cylinder head at least one intake port and at least one outlet channel provided, and in Rotary slide valve one with the inlet channel and the outlet channel Corresponding control opening are provided, in which in the area of the inlet duct and the outlet duct at least on the side of the cylinder facing the A freely rotatable sealing ring is arranged, the rotary valve is driven in the middle and the Cylinder head and the cylinder on both sides of the Rotary valve are provided with cooling channels.

Eine solche Drehschiebersteuerung ist bekannt ( DE-A- 43 12 492 ).Such a rotary valve control is known (DE-A-43 12 492).

Es ist eine andere Drehschiebersteuerung bekannt (DE-PS-911 791). Bei dieser bekannten Drehschiebersteuerung ist der Drehschieber am Rand mit einer Verzahnung versehen, welche im Eingriff mit einem am Ende einer Welle angeordneten Ritzel steht. Außerdem ist der Zylinderkopf und damit der Drehschieber durch außen auf dem Zylinderkopf angeordnete Kühlrippen gekühlt.Another rotary slide control is known (DE-PS-911 791). In this known rotary valve control the rotary valve has a toothing on the edge, which engages with one at the end of a shaft arranged sprocket stands. In addition, the cylinder head and thus the rotary valve from the outside on the Cooling fins arranged in the cylinder head are cooled.

Diese bekannte Drehschiebersteuerung weist den Nachteil auf, daß der Drehschieber gegenüber den Öffnungen im Zylinderkopf keine ausreichende und für eine hohe Lebensdauer erforderliche Abdichtung besitzt. Außerdem erscheint die Kühlung des Drehschiebers nicht ausreichend zu sein.This known rotary valve control has the disadvantage on that the rotary valve opposite the openings in Cylinder head not sufficient and for a high one Has the required sealing life. Moreover the cooling of the rotary valve appears insufficient to be.

Das der Erfindung zugrunde liegende technische Problem besteht deshalb darin, die eingangs genannte bekannte Drehschiebersteuerung im Hinblick auf ihre Zuverlässigkeit, Belastbarkeit, Lebensdauer und Sparsamkeit zu verbessern.The technical problem underlying the invention therefore consists in the known known Rotary valve control with regard to their Reliability, resilience, service life and Improve thrift.

Dieses technische Problem ist erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. This technical problem is in accordance with the invention solved by the features of claim 1.

Bei der erfindungsgemäßen Lösung weisen die drehbaren Dichtringe eine Mehrfachfunktion auf. Weil sie nun unabhängig von der Rotation des Drehschiebers ständig mechanisch oder vorzugsweise hydaulisch angetrieben werden, werden sie gleichzeitig auch geschmiert und gekühlt.In the solution according to the invention, the rotatable Seals have a multiple function. Because now regardless of the rotation of the rotary valve mechanically or preferably hydraulically driven they are also lubricated and cooled.

Die Dichtringe auf der Außenseite, d.h.der vom Zylinder abgewandten Seite des Drehschiebers dichten nicht nur den Drehschieber gegenüber den Einlaß- und Auslaßkanälen ab, sondern sie wirken auch als Axiallager, um die durch den Kolben erzeugten und auf den Drehschieber wirkenden Druckkräfte zu dämpfen.The sealing rings on the outside, i.e. the one on the cylinder opposite side of the rotary valve not only seal the Rotary valve from the inlet and outlet channels, but they also act as thrust bearings around which the Pistons generated and acting on the rotary valve Dampen compressive forces.

Die als Axiallager wirkenden Dichtringe verhindern auch ein mögliches Vibrieren des Drehschiebers beim Lastwechsel während des Betriebes der Vorrichtung. Dies erlaubt gleichzeitig die Wandstärke des Drehschiebers zu verringern, so daß in ihm weniger Wärme gespeichert wird und die durch ihre Masse verursachten Schwungkräfte verringert werden. The sealing rings, which act as axial bearings, also prevent a possible vibration of the rotary valve when changing the load during the operation of the device. This allows the wall thickness of the rotary valve at the same time reduce so that less heat is stored in it and the momentum caused by their mass be reduced.

Die in den Antrieb des Drehschiebers eingeschaltete, in Drehrichtung wirkenden Federungseinrichtung, welche mechanisch oder hydraulisch wirken kann, gestattet eine Schwankung der Kreisgeschwindigkeit des Drehschiebers. Eine derartige Schwankung wird beispielsweise durch die wechselnden Druckverhältnisse im Zylinder verursacht. Durch den abgefederten Antrieb des Drehschiebers wird die Drehbewegung des Drehschiebers vergleichmäßigt und stoßförmige Belastungen des Antriebsystems verhindert.The switched on in the drive of the rotary valve, in Suspension device acting in the direction of rotation, which can act mechanically or hydraulically Fluctuation in the circular speed of the rotary valve. Such a fluctuation is caused, for example, by the changing pressure conditions in the cylinder. Due to the sprung drive of the rotary valve, the Rotary movement of the rotary slide smoothed out and prevents impact loads on the drive system.

Die Federungseinheit kann erforderlichenfalls auch mit in ihrer Federcharakteristik steuerbaren Federn ausgeführt sein, um -beispielsweise in der Anwendung in einem Verbrennungsmotor- die Motorcharakteristik an die Erfordernisse anpassen und beispielweise ein höheres Drehmoment erzielen zu können.If necessary, the suspension unit can also be fitted with in their spring characteristics of controllable springs to be - for example in one application Internal combustion engine - the engine characteristics to the Adjust requirements and for example a higher one To be able to achieve torque.

Vorteilhafte Einzelheiten der Erfindung sind in den Ansprüchen 2 und 3 enthalten. Sie ist nachstehend anhand eines in den Figuren 1 und 2 gezeigten Ausführungsbeispiel erläutert. Es zeigen :

Fig. 1
den Längsschnitt entlang der Linie AB in Fig. 2 durch ein Ausführungsbeispiel der erfindungsgemäßen Vorrichtung und
Fig. 2
schematisch die Anordnung der Öffnungen in Zylinderkopf und Drehschieber bei der Vorrichtung gemäß Fig.1.
Advantageous details of the invention are contained in claims 2 and 3. It is explained below using an exemplary embodiment shown in FIGS. 1 and 2. Show it :
Fig. 1
the longitudinal section along the line AB in Fig. 2 by an embodiment of the device according to the invention and
Fig. 2
schematically the arrangement of the openings in the cylinder head and rotary valve in the device according to Fig.1.

In Fig. 1 sind der Zylinder 7 mit dem darin angeordneten Kolben 9 und der Zylinderkopf 8 zu erkennen. Zylinderkopf 8 und Zylinder 7 weisen Hohlräume 10 zur Aufnahme von Kühlflüssigkeit auf. In einem entsprechend gestalteten Hohlraum zwischen dem Zylinder 7 und dem Zylinderkopf 8 ist der mit einem Kragen 11 versehene Drehschieber 1 angeordnet. Das obere Ende des Kragens 11 ist kraftschlüssig mit einem Antriebsrad 12 versehen. Das Mittelteil des Zylinderkopfes 8 weist eine topfförmige Vertiefung 13 auf, in deren Boden eine Öffnung für die Aufnahme einer Zündvorrichtung, beispielsweise einer Zündkerze, vorgesehen ist. Zwischen das Antriebsrad 12 und den Kragen 11 ist die Federungseinrichtung 16 eingeschaltet.In Fig. 1 are the cylinder 7 with the arranged therein Recognize piston 9 and the cylinder head 8. cylinder head 8 and cylinder 7 have cavities 10 for receiving Coolant. In an appropriately designed Cavity between the cylinder 7 and the cylinder head 8 is the rotary valve 1 provided with a collar 11 arranged. The upper end of the collar 11 is non-positively provided with a drive wheel 12. The Middle part of the cylinder head 8 has a cup-shaped Well 13 on, in the bottom of an opening for the Inclusion of an ignition device, for example one Spark plug is provided. Between the drive wheel 12 and the collar 11 is the suspension device 16 switched on.

Im Zylinderkopf 8 ist der Auslaßkanal 6 zu erkennen, welcher gegenüber dem Drehschieber 1 durch drehbare Dichtringe 2 und 3 abgedich tet ist. Dichtringe 14und 15 sind auch zur Abdichtung des Kragens 11 gegenüber dem Zylinder 7 und dem Zylinderkopf 8 vorgesehen.The exhaust port 6 can be seen in the cylinder head 8, which compared to the rotary valve 1 by rotatable Sealing rings 2 and 3 are sealed. Sealing rings 14 and 15 are also used to seal the collar 11 against the Cylinder 7 and the cylinder head 8 are provided.

Wie aus Fig. 1 zu erkennen ist, ist im Breich der äußeren Kante des Drehschiebers 1 im Zylinderkopf 8 ein umlaufender Kanal vorhanden, welcher über die Öffnung 17 mit der Außenatmosphäre in Verbindung steht.As can be seen from Fig. 1, is in the area of the outer Edge of the rotary valve 1 in the cylinder head 8 circumferential channel available, which via the opening 17th communicates with the outside atmosphere.

Die Dichtringe 3 sind gleichzeitig als Axiallager ausgebildet, so daß sie die von der Kompression auf den Drehschieber wirkenden Kräfte dämpfen. Wenn eine während des Betriebes der Vorrichtung steuerbare Federungseinrichtung 16 verwendet wird, kann der Ausstoßtakt der Vorrichtung beeinflußt werden.Dadurch kann die Betriebscharakteristik angepaßt und beispielsweise ein höheres Drehmoment erzielt werden. The sealing rings 3 are also axial bearings trained so that the compression of the Damp the rotary valve acting forces. If one during the operation of the device controllable Suspension device 16 is used, the Ejection clock of the device can be influenced the operating characteristics adapted and for example a higher torque can be achieved.

Fig. 2 zeigt in einer Momentaufnahme die relative Stellung der Öffnung 4 im Drehschieber 1 gegenüber dem Einlaßkanal 5 und dem Auslaßkanal 6 im Zylinderkopf 8 bei einer bestimmten Drehstellung des Drehschiebers 1.2 shows the relative position in a snapshot the opening 4 in the rotary valve 1 opposite the inlet channel 5 and the exhaust port 6 in the cylinder head 8 at one certain rotational position of the rotary valve 1.

Der Drehschieber 1 ist mittig zum Zylinderkopf angeordnet. Durch das in den Hohlräumen 10 enthaltene Kühlmittel sind Zylinder 7 und Zylinderkopf 8 und damit auch der Drehschieber 1 gekühlt. Die dem Drehschieber 1 zugewandten Flächen des Zylinderkopfes 8 und des Zylinders 7 sind an die Kalottenform des Drehschiebers 1 angepaßt. Durch den dadurch vorhandenen engen Kontakt des Drehschiebers mit dem gekühlten Zylinderkopf 8 und Zylinder 7 erfolgt auch eine gute Kühlung des Drehschiebers.The rotary valve 1 is arranged in the center of the cylinder head. Due to the coolant contained in the cavities 10 Cylinder 7 and cylinder head 8 and thus also the Rotary valve 1 cooled. The facing the rotary valve 1 Surfaces of the cylinder head 8 and the cylinder 7 are on adapted the spherical shape of the rotary valve 1. By the the existing close contact of the rotary valve with the cooled cylinder head 8 and cylinder 7 is also done good cooling of the rotary valve.

Die drehbaren Dichtringen 2 und 3, welche - wie gezeigt - beidseitig von Ein- und Auslaßkanal eingebaut sind, sorgen für die erforderliche Abdichtung während des Betriebes.The rotating sealing rings 2 and 3, which - as shown - installed on both sides of the inlet and outlet duct for the required sealing during operation.

Die auf der Kugelfläche des Drehschiebers 1 gleitenden drehbaren Dichtringe 2,3 bilden einen wesentlichen Vorteil der Vorrichtung.The sliding on the spherical surface of the rotary valve 1 rotatable sealing rings 2,3 form a significant advantage the device.

Weitere Vorteile der vorgeschlagenen Lösung sind : Der Verdichtungsgrad wird durch kein glühendes Ventil beschränkt. Die Strömung in Einlaß- und Auslaßkanal wird um ca. 40% gegenüber von durch Ventile betätigte Ein- und Auslaßöffnungen verbessert. Ein durch Ventilfedern verursachter Leistungsverlust tritt nicht ein. Die Drehzahlgrenze ist nach höheren Drehzahlen verschoben. Der Lauf des Motors ist gleichmäßiger und leiser. Die bessere Ausnutzung des Treibstoffes führt zu einer Schonung der Umwelt.Other advantages of the proposed solution are: The The degree of compression is not caused by a glowing valve limited. The flow in the inlet and outlet channels becomes by approx. 40% compared to valve actuated inputs and Exhaust openings improved. One by valve springs power loss caused does not occur. The The speed limit is shifted to higher speeds. The The engine runs more smoothly and quietly. The better one Utilization of the fuel leads to protection of the Environment.

Claims (3)

  1. A rotary valve control for internal combustion engines and reciprocating pumps, having a cylinder head, in which a dynamically balanced cup-shaped rotary valve, which is coupled with a drive, is arranged to be rotatable around the cylinder shaft, and at least one inlet conduit and at least one outlet conduit are provided in the cylinder head, and a control opening, which corresponds with the inlet conduit, or respectively the outlet conduit, is provided in the rotary valve, wherein a freely rotatable seal ring is provided in the area of the inlet conduit and the outlet conduit at least on the side of the rotary valve facing the cylinder, the rotary valve is centrally driven and the cylinder head and the cylinder are provided with cooling conduits on both sides of the rotary valve.
    characterized in that
    a. the rotary valve (1) is coupled with the drive by means of the interposition of a spring device (16) acting in the circumferential direction.
    b. The rotatable seal rings (2, 3) are coupled with a drive
    c. The seal rings (2), which are arranged on the side of the rotary valve facing away from the cylinder (7), are embodied as an axial bearing
    d. The seal rings (2, 3) are provided with lubrication and cooling
  2. The rotary valve control in accordance with claim 1. characterized in that seal rings (14, 15) are provided between the collar (11) of the rotary valve (I) and the cylinder head (7).
  3. The rotary valve control in accordance with claim 1. characterized in that a circumferential conduit, which is connected with the outside air via at least one opening (17), is provided in the cylinder head (8) in the area of the outer edge of the rotary valve (1).
EP96932597A 1995-09-27 1996-09-26 Rotary valve control system for internal combustion engines and reciprocating pumps Expired - Lifetime EP0873468B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19535920 1995-09-27
DE19535920A DE19535920C2 (en) 1995-09-27 1995-09-27 Rotary vane control for an internal combustion engine or a piston pump
PCT/EP1996/004194 WO1997012128A1 (en) 1995-09-27 1996-09-26 Rotary valve control system for internal combustion engines and reciprocating pumps

Publications (2)

Publication Number Publication Date
EP0873468A1 EP0873468A1 (en) 1998-10-28
EP0873468B1 true EP0873468B1 (en) 2003-05-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96932597A Expired - Lifetime EP0873468B1 (en) 1995-09-27 1996-09-26 Rotary valve control system for internal combustion engines and reciprocating pumps

Country Status (6)

Country Link
US (1) US5996544A (en)
EP (1) EP0873468B1 (en)
CN (1) CN1202217A (en)
DE (2) DE19535920C2 (en)
ES (1) ES2196177T3 (en)
WO (1) WO1997012128A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29901854U1 (en) * 1999-02-03 2000-06-29 Fink Gerhard Internal combustion engine, compressor or pump, with the channels controlling the rotary valves rotating around the axes of the cylinders and directly driven by external teeth
DE19933925C2 (en) * 1999-07-20 2003-06-05 Matthias Lahr Rotary slide valve for gas exchange control in internal combustion engines
CN1508401A (en) * 2002-12-13 2004-06-30 华志成 Sealing structure of rotating valve block distribution mechanism for internal combustion engine
US6976464B2 (en) * 2003-05-28 2005-12-20 Dragon America Motor Technologies, Inc. Semi-rotating valve assembly for use with an internal combustion engine
DE102007018433A1 (en) * 2007-04-19 2008-10-30 ThyssenKrupp Metalúrgica Campo Limpo Ltda. Inlet and exhaust valve assembly for an internal combustion engine
US20100321433A1 (en) * 2009-06-18 2010-12-23 George Keith Parish Multi-chip printhead array with reduced nozzle offset
JP5275961B2 (en) * 2009-11-30 2013-08-28 本田技研工業株式会社 Lubrication structure of valve mechanism
US8151755B1 (en) 2011-09-23 2012-04-10 Advanced Engine Technologies LLC Internal combustion engine
US8347841B1 (en) 2011-09-23 2013-01-08 R. Dale Pelfrey Internal combustion engine
ITMI20112391A1 (en) 2011-12-27 2013-06-28 Nuovo Pignone Spa DEVICES AND METHODS TO IMPLEMENT VALVES

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE531687A (en) *
US1996200A (en) * 1934-02-17 1935-04-02 Hall Rotary Valve Motor Compan Rotary valve engine
US2247984A (en) * 1938-05-20 1941-07-01 Bensinger Wolf-Dietrich Packing for rotary valves in internal combustion engines
US2231547A (en) * 1939-11-06 1941-02-11 Arthur H O Brien Internal combustion engine
DE911791C (en) * 1939-12-23 1954-05-20 Versuchsanstalt Fuer Luftfahrt Rotary slide control for internal combustion engines
SE347787B (en) * 1968-03-09 1972-08-14 E Lamperti
US4418658A (en) * 1980-07-07 1983-12-06 Diross James Engine valve
DE4312492A1 (en) * 1993-04-16 1994-10-27 Stanislav Franz Bartos Slide valve control for four-stroke engines and delivery pumps in cone slide valve form
KR0133780B1 (en) * 1995-04-25 1998-04-25 전성원 Rotational combustion chamber without valves
US5558049A (en) * 1995-06-05 1996-09-24 Dubose; G. Douglas Variable orbital aperture valve system for fluid processing machines

Also Published As

Publication number Publication date
DE19535920A1 (en) 1996-03-14
US5996544A (en) 1999-12-07
WO1997012128A1 (en) 1997-04-03
EP0873468A1 (en) 1998-10-28
DE59610407D1 (en) 2003-06-05
ES2196177T3 (en) 2003-12-16
DE19535920C2 (en) 1999-07-08
CN1202217A (en) 1998-12-16

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