DE3838796A1 - Rotation control system for the charge cycle in engines working on the 4-stroke principle - Google Patents

Rotation control system for the charge cycle in engines working on the 4-stroke principle

Info

Publication number
DE3838796A1
DE3838796A1 DE19883838796 DE3838796A DE3838796A1 DE 3838796 A1 DE3838796 A1 DE 3838796A1 DE 19883838796 DE19883838796 DE 19883838796 DE 3838796 A DE3838796 A DE 3838796A DE 3838796 A1 DE3838796 A1 DE 3838796A1
Authority
DE
Germany
Prior art keywords
control system
rotation control
fresh
stroke
exhaust
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Withdrawn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
DE19883838796
Other languages
German (de)
Inventor
Uwe Michl
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.)
Michl Uwe 2359 Henstedt-Ulzburg De
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 DE19883838796 priority Critical patent/DE3838796A1/en
Publication of DE3838796A1 publication Critical patent/DE3838796A1/en
Withdrawn legal-status Critical Current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
    • 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
    • F01L7/026—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves with two or more rotary valves, their rotational axes being parallel, e.g. 4-stroke
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

In 4-stroke engines the exhaust and refill have hitherto been performed by valves, problems such as flow losses, design and production cost, limited engine speed, susceptibility to wear and service costs having led to multiple variations in the position, number, actuation, material and cooling of the valves. The new control system is intended to minimise these disadvantages. A hollow shaft (1) with segmental cut-outs (2) controls the admission of fresh gases and discharge of exhaust gases according to the stroke by way of segmental cut-outs in the cylinder head (3) and at the same time serves as fresh and exhaust gas channel. In the said method the flow losses are lower, the design and manufacturing cost is reduced, the engine speed consistency is greater, the wear performance and the ease of servicing are better than in the valve timing system. The rotation control system, moreover, easily permits the use of ceramic materials in engine construction, which due to the reducible working temperature can lead to increased thermal efficiency and to the omission of conventional cooling. The rotation control system is suitable for all 4-stroke engines such as spark ignition and diesel engines. <IMAGE>

Description

Verfahren:Method:

Ein rotierender Hohlzylinder steuert mittels sektor­ förmiger Ausschnitte den Frischgaszu- und Abgas­ abstrom. Dabei dient er gleichzeitig als Zu- bzw. Ableitungsweg.A rotating hollow cylinder controls by sector shaped cutouts the fresh gas supply and exhaust outflow. At the same time, it serves as a feeder or Discharge path.

Erläuterungen zu den Zeichnungen:Explanations to the drawings:

Zeichnung A stellt die Verhältnisse mit nur einem Hohlzylinder dar, Zeichnung B veranschaulicht die Funktion mit zwei Hohlwellen.Drawing A represents the situation with only one Hollow cylinder, drawing B illustrates the Function with two hollow shafts.

Deutlich sind die Hohlwellen zu erkennen, sie weisen zur Steuerung 45 Grad betragende Ausschnitte auf. Die Position dieser Ausschnitte wird von den Funk­ tionstakten bestimmt, über die Kurbelwelle und z. B. einen Zahnriemen erfolgen die Drehungen der Hohlwellen (hier nicht eingezeichnet).The hollow shafts can be clearly seen, they point cutouts at 45 degrees for control. The position of these cutouts is determined by the radio tion cycles determined via the crankshaft and e.g. B. a toothed belt, the rotations take place Hollow shafts (not shown here).

Kolben, Zündkerzen, Verschraubungen, Dichtleisten, Kühlmittel- und Ölkreislauf sind nur grob schematisch eingezeichnet.Pistons, spark plugs, screw connections, sealing strips, The coolant and oil circuit are only roughly schematic drawn.

Funktionsprinzip:Principle of operation:

Die Darlegung beginnt an der Zeichnung am oberen Totpunkt (OT). Das Verbrennungsgemisch ist maximal verdichtet und wurde gezündet.The explanation begins with the drawing at top dead center (TDC) . The combustion mixture is compressed to the maximum and ignited.

Im nun folgenden Expansionstakt drehn sich die Hohlwellen um Grad, damit öffnet sich kurz vor dem unteren Totpunkt (UT) das Abgassegment zum Verbrennungsraum.In the expansion cycle that follows, the hollow shafts rotate by degrees, thus opening the exhaust gas segment to the combustion chamber shortly before bottom dead center (UT) .

Während der jetzt stattfindenden Austreibungsphase ist die Öffnung des Auslassegmentes am größten, wenn sich der Kolben genau zwischen UT und OT befindet. Befindet sich der Kolben wieder am OT, so hat das Auslassegment gerade wieder geschlossen. Zu Beginn der Ansaugphase haben die Hohlwellen sich um 180 Grad gedreht und nun beginnt sich das Einlassegment zu öffnen. In der Mitte des Weges des Kolbens zwischen OT und UT ist die Öffnung maximal; bei Erreichen von UT verschließt es sich wieder. In der Kompressionsphase drehen sich die Hohlwellen um weitere 90 Grad, somit vollführen die Hohlwellen während der vier Arbeitstakte eine Drehung um 360 Grad. During the expulsion phase now taking place, the opening of the outlet segment is greatest when the piston is exactly between UT and OT . If the piston is again at TDC , the outlet segment has just closed again. At the beginning of the suction phase, the hollow shafts rotated 180 degrees and now the inlet segment begins to open. In the middle of the piston travel between OT and UT , the opening is maximum; when UT is reached, it closes again. In the compression phase, the hollow shafts rotate another 90 degrees, so the hollow shafts rotate through 360 degrees during the four work cycles.

Eigenschaften:Characteristics:

  • - es werden erheblich weniger bewegte Bauteile verwendet um den Gaswechsel zu steuern- There are significantly fewer moving Components used to change the gas Taxes
  • - es resultiert eine sichere und wartungs­ freie Mechanik- it results in safe and maintenance free mechanics
  • - der Gasfluß weist nur einen geringen Wiederstand auf- The gas flow shows only a small one Resist on
  • - die Bauhöhe und -breite lassen sich verringern- The height and width can be reduce
  • - diese Gaswechselsteuerung ist absolut drehzahlfest- This gas exchange control is absolute speed-proof
  • - Schäden wie durch abbrechende Ventile sind nicht zu erwarten.- Damage as from breaking valves are not expected.
Bemerkungen:Remarks:

Das Bauprinzip mit nur einer Hohlwelle eignet sich ohne zusätzliche Segmentöffnungen zum Zu- und Abtransport der Gase nur für einzelne Zylinder (s. Zeichnung, wegen Trennwand zwischen Zu- und Abluft Unterbindung des freien Gasflusses über die ganze Länge der Hohlwelle).The construction principle with only one hollow shaft is suitable itself without additional segment openings Gases are only transported in and out for individuals Cylinder (see drawing, because of partition between Supply and exhaust air Prevention of free gas flow over the entire length of the hollow shaft).

In dieser Kurzskizze ist keine detailierte Betrachtung der Dichtungs- und Schmierungs­ problematik erfolgt, ebenso wurde der Entwurf nur per Hand ohne Anspruch auf millimetergenaues Zeichnen erstellt.There is no detailed one in this short sketch Consideration of sealing and lubrication problem occurred, as was the design only by hand without the right to millimeter precision Draw created.

Erklärung:Explanation:

Dieser Entwurf wurde ohne Wissen um gleiche oder ähnliche Vorschläge aus eigenen Ideen am 26. 05. 1988 erstellt.This design was made without knowledge of the same or similar suggestions from your own ideas created on May 26, 1988.

Claims (1)

Rotationssteuerungssystem für den Gaswechsel bei Motoren, die nach dem 4-Taktprinzip arbeiten, dadurch gekennzeichnet, daß eine Hohlwelle für Zu- und Abfuhr der Frisch- und Abgase mittels segmentförmiger Ausschnitte im Zusammenwirken mit segmentförmigen Ausschnitten im Zylinderkopf, die Verbrennungsraum und Hohlwelle miteinander verbinden, taktabhängig den Zu- und Abstrom der Frisch- und Abgase in und aus dem Verbrennungsraum steuert, wobei die Hohlwellen gleichzeitig als Frisch- und Abgas Zu- und Abführwege dienen.Rotation control system for gas exchange in engines that work according to the 4-stroke principle, characterized in that a hollow shaft for supply and discharge of the fresh and exhaust gases by means of segment-shaped cutouts in cooperation with segment-shaped cutouts in the cylinder head, which connect the combustion chamber and the hollow shaft, depending on the cycle controls the inflow and outflow of fresh and exhaust gases into and out of the combustion chamber, the hollow shafts simultaneously serving as fresh and exhaust gas inlet and outlet paths.
DE19883838796 1988-11-17 1988-11-17 Rotation control system for the charge cycle in engines working on the 4-stroke principle Withdrawn DE3838796A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19883838796 DE3838796A1 (en) 1988-11-17 1988-11-17 Rotation control system for the charge cycle in engines working on the 4-stroke principle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19883838796 DE3838796A1 (en) 1988-11-17 1988-11-17 Rotation control system for the charge cycle in engines working on the 4-stroke principle

Publications (1)

Publication Number Publication Date
DE3838796A1 true DE3838796A1 (en) 1990-05-23

Family

ID=6367275

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883838796 Withdrawn DE3838796A1 (en) 1988-11-17 1988-11-17 Rotation control system for the charge cycle in engines working on the 4-stroke principle

Country Status (1)

Country Link
DE (1) DE3838796A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9409791U1 (en) * 1994-06-17 1995-03-02 Neuhaus, Wolfgang, 44319 Dortmund Reciprocating internal combustion engine with at least one cylinder
EP2781702A1 (en) * 2013-03-21 2014-09-24 Hansen, Marret Thermodynamic work machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9409791U1 (en) * 1994-06-17 1995-03-02 Neuhaus, Wolfgang, 44319 Dortmund Reciprocating internal combustion engine with at least one cylinder
EP2781702A1 (en) * 2013-03-21 2014-09-24 Hansen, Marret Thermodynamic work machine

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: MICHL, UWE, 2359 HENSTEDT-ULZBURG, DE

8139 Disposal/non-payment of the annual fee