DE4338645A1 - IC engine with inlet and outlet valves and cylinder wall slide valve - Google Patents
IC engine with inlet and outlet valves and cylinder wall slide valveInfo
- Publication number
- DE4338645A1 DE4338645A1 DE4338645A DE4338645A DE4338645A1 DE 4338645 A1 DE4338645 A1 DE 4338645A1 DE 4338645 A DE4338645 A DE 4338645A DE 4338645 A DE4338645 A DE 4338645A DE 4338645 A1 DE4338645 A1 DE 4338645A1
- Authority
- DE
- Germany
- Prior art keywords
- cylinder
- engine
- outlet
- cycle
- piston engine
- 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- Withdrawn
Links
Classifications
-
- 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
- F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
- F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
- F02B25/04—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke
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- 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
- F02B17/00—Engines characterised by means for effecting stratification of charge in cylinders
-
- 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
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
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- 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
- F02B31/00—Modifying induction systems for imparting a rotation to the charge in the 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
Die Erfindung betrifft die Aufladung eines Kolbenverbrennungsmotors mit Ventil und Schlitzsteuerung mit einem oder mehreren Zylindern, wobei jedem Zylinder Einlaß- und Auslaßventile, Nockenwelle-Einlaß- und Auslaßkanäle im Zylinderkopf und im Zylinder eine Schlitzöffnung für Aufladung und Entspannung zugeordnet sind (ist.)The invention relates to the supercharging of a piston internal combustion engine with valve and slot control with one or more cylinders, each cylinder inlet and Exhaust valves, camshaft inlet and exhaust channels in Cylinder head and a slot opening in the cylinder for charging and relaxation are assigned.
Es ist bekannt, daß bei den heute üblichen Viertaktmotoren ein jeder Zylinder durch ein oder mehrere getrennte Einlaß- und Auslaßventile geöffnet und geschlossen wird. Dabei wird Frischluft über Einlaßkanäle und die Einlaßventile zugeführt und die Abgase über die Auslaßventile-Auslaßkanäle abgeführt. Als nachteilig wird bei dieser herkömmlichen Bauweise der Steuerung alleine angesehen, daß sie mit Füllungsverlust, atmosphärischen Unterdruck vor dem Verdichten der Zylinder und mit zuviel Restexpansionsverlust arbeitet. Zusätzliche G-Lader können nur ab mittleren Drehzahlen mit dem Abdecken beim Füllen der Zylinder beginnen. Im gesamten unteren Drehzahlbereich klafft eine große Lücke beim Auto z. B. Anfahren, Bremsen, Anfahren usw., hier wird unnötig Energie verschleudert.It is known that in today's four-stroke engines each cylinder through one or more separate intake and exhaust valves are opened and closed. Doing so Fresh air is supplied via inlet channels and the inlet valves and the exhaust gases through the exhaust valve exhaust passages dissipated. The disadvantage of this conventional The design of the control alone considered that with loss of filling, atmospheric negative pressure before compression the cylinder works and with too much residual expansion loss. Additional G-loaders can only be used with medium speeds start covering when filling the cylinders. All in one there is a large gap in the lower speed range Car z. B. starting, braking, starting, etc., here is unnecessary Energy wasted.
Ausgehend von dem eingangs genannten K-Verbrennungsmotor liegt der Erfindung die Aufgabe zugrunde, einen sparsamen 4/2 und 6/2 K-Verbrennungsmotor bereitzustellen, der schon im unteren Drehzahlbereich Leistung durch bessere Befüllung des Zylinders erreicht.Starting from the K internal combustion engine mentioned at the beginning is the object of the invention, an economical To provide 4/2 and 6/2 K internal combustion engine, which is performance in the lower speed range due to better filling of the cylinder reached.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß zu der bereits bekannten Viertaktsteuerung im Zylinderkopf 3 zum Befüllen der Zylinder 2, ein Auslaßschlitz 4 im U.T.-Bereich des Zylinders angebracht wird, der eine wechselseitige Aufgabe zum Entspannen der Abgase und zusätzliche Luftbefüllung des Zylinders übernimmt.This object is achieved in that in addition to the already known four-stroke control in the cylinder head 3 for filling the cylinder 2 , an outlet slot 4 is placed in the UT area of the cylinder, which takes on a mutual task to relax the exhaust gases and additional air filling of the cylinder.
Vorteil ersichtlich aus der Phasenerklärung 1. Takt "Saughub", der Kolben 8 im Zylinder 3 geht von O.T. nach U.T. saugt Luft oder Gasgemisch durch das Einlaßventil 6 an; es besteht atmosphärischer Unterdruck bis vor U.T. Durch die Schlitzanordnung 4 und dessen Öffnung durch den Kolben bei U.T. wird das Ansauggemisch vom Überschneidungspunkt 5 an sofort durch den plötzlichen Lufteintritt durchwirbelt und atmosphärisch ausgeglichen.Advantage evident from the phase explanation 1st stroke "suction stroke", the piston 8 in the cylinder 3 goes from TDC to TDC sucks air or gas mixture through the inlet valve 6 ; there is atmospheric negative pressure up to UT. Due to the slit arrangement 4 and its opening through the piston at UT, the intake mixture is immediately swirled by the sudden entry of air from the overlap point 5 and balanced out atmospherically.
2. Takt "Verdichtungshub". Der Kolben 8 im Zylinder geht von U.T. nach O.T. mit hoher Füllung. Die im Zylinderkopf befindlichen Ventile 6, 7 sind geschlossen, die Schlitzöffnung 4 im U.T. wird vom Kolben versperrt.2nd stroke "compression stroke". The piston 8 in the cylinder goes from UT to OT with high filling. The valves 6 , 7 in the cylinder head are closed, the slot opening 4 in the bottom part is blocked by the piston.
3. Takt "Ausdehnunggstakt", das verdichtete Gasluftgemisch im Verbrennungsraum wird gezündet (selbst, fremd), der Kolben 8 geht von O.T. mit Kraft nach U.T., die Ventile 6, 7 sind geschlossen. Der Kolben 8 öffnet im Bereich von U.T. den Auslaßschlitz 4; sofortige Entspannung beginnt.3. stroke "expansion stroke", the compressed gas-air mixture in the combustion chamber is ignited (itself, foreign), the piston 8 goes from TDC to TDC, the valves 6 , 7 are closed. The piston 8 opens the outlet slot 4 in the area of UT; immediate relaxation begins.
4. Takt "Ausschubhub". Das Auslaßventil 7 öffnet im U.T.- Bereich der Auslaßschlitz 4 ist geöffnet, die sofortige Entspannung im U.T.-Bereich im Vollzug, die Abgase werden über das Auslaßventil 7 drucklos ausgeschoben, der Auslaßschlitz 4 wird vom Kolben 8 versperrt.4th stroke "extension stroke". The outlet valve 7 opens in the UT area of the outlet slit 4 is open, the immediate relaxation in the UT area during execution, the exhaust gases are pushed out without pressure via the outlet valve 7 , the outlet slit 4 is blocked by the piston 8 .
Vorteil dieser Anordnung - jeder Drehzahlbereich arbeitet mit hoher Luftbefüllung und Entspannungsgrad und ist sparsam im Verbrauch.Advantage of this arrangement - every speed range works with high air filling and degree of relaxation and is economical in consumption.
Zur Drehzahlregelung muß wegen des hohen Luftfüllungsgrades der Zylinder ein Umdenken in Luftzufuhr über Einlaßventil und in der Gemischaufbereitung im unteren Drehzahlbereich erfolgen (Magermix).To control the speed, because of the high degree of air filling the cylinder rethought in air supply via intake valve and in the mixture preparation in the lower speed range done (lean mix).
Die Schlitzöffnung 4 des Zylinders 2 im Bereich des unteren Totpunktes geht vom Zylinder über einen Kanal außerhalb des Motors in einen Entspannungsschalldämpfer 9, der folgende Funktionen inne hat: Lärmdämpfung, Aufnahmefähigkeit des Entspannungsdruckes, Zuführung von Frischluft zum atmosphärischen Ausgleich des Saughubes. Bei laufendem Motor wird immer zusätzlich Frischluft 11 durch den Schalldämpfer angezogen. Die Entspannungsdruckmenge 10 vom Übergang des 3. auf 4. Taktes im U.T.-Bereich ist vom Volumen zu gering; bei richtiger Anordnung sich nach außen auszudehnen - sie hebt sich von selbst auf.The slot opening 4 of the cylinder 2 in the area of the bottom dead center goes from the cylinder via a channel outside the engine into a relaxation silencer 9 , which has the following functions: noise reduction, absorption capacity of the relaxation pressure, supply of fresh air for atmospheric compensation of the suction stroke. When the engine is running, fresh air 11 is always drawn in by the muffler. The expansion pressure quantity 10 from the transition from the 3rd to the 4th cycle in the UT area is too small in terms of volume; with the correct arrangement to expand outwards - it cancels itself.
Durch die Entspannung im Zylinder U.T.-Bereich hat der Kolben bei Ausschub fast keinen Widerstand mehr, er behält die Kraft für nachfolgende Takte.By relaxing in the cylinder U.T. area, the Piston almost no resistance when extended, it retains the power for subsequent bars.
Alternative zum Entspannungsschalldämpfer in Funktion - das Vorschalten eines G-Laders, der den Schalldämpfer wegen der geringen Abgase frei durchspült und zusätzlich die Zylinder auflädt.Functional alternative to expansion silencer - the upstream of a G-charger, the silencer because of the low exhaust gases, flushed freely and additionally charging the cylinders.
BezugszeichenlisteReference list
M 4/2 und/oder M 6/2
M=Motor
4/2=Taktfolge Viertakt plus zwei Phasen
6/2=Taktfolge Sechstakt plus zwei Phasen
1 Motor,
2 Zylinder,
3 Zylinderkopf,
4 Auslaßschlitz,
5 Überschneidungspunkt,
6 Einlaßventil,
7 Auslaßventil,
8 Kolben,
9 Lade- und Entspannungsschalldämpfer,
10 Entspannungsdruckmenge,
11 Frischluft,
12 Strömungskanal.
O.T.=Oberer Totpunkt
U.T.=Unterer TotpunktM 4/2 and / or M 6/2
M = motor
4/2 = four-bar cycle plus two phases
6/2 = cycle sequence six-cycle plus two phases
1 engine,
2 cylinders,
3 cylinder head,
4 outlet slot,
5 intersection point,
6 inlet valve,
7 outlet valve,
8 pistons,
9 charging and expansion silencers,
10 relaxation pressure quantity,
11 fresh air,
12 flow channel.
OT = top dead center
UT = bottom dead center
Fig. 1 zeigt Saughub im U.T. Fig. 1 shows suction stroke in the UT
Fig. 2 Überschneiden des 3. und 4. Taktes im U.T. Fig. 2 overlap of the 3rd and 4th bar in subtitles
Claims (6)
Ein verändertes Entspannungsverhalten ist dadurch gekennzeichnet, daß während des Ansaughubes durch Freigabe des Auslaßschlitzes (4) durch den Kolben (2), im Bereich des U.T. zusätzlich Frischluft durch den Auslaßschlitz (4) über dem Überströmkanal (12) vom Entspannungsdruckschalldämpfer (9) in den Zylinder (2) strömt und das im Unterdruck vorhandene Luft- oder Gasgemisch sofort durchwirbelt und den volumetrischen Wirkungsgrad erhöht.1. Combustion piston engine M 4/2 and / or M 6/2 with one or more cylinders ( 2 ), each cylinder ( 2 ), intake valve (s) ( 6 ) and exhaust valve (s) ( 7 ) in the cylinder head ( 3 ) and in the cylinder ( 2 ) in the area of the bottom dead center one or more outlet slots (e) ( 4 ) with a reciprocal function in connection through a flow channel ( 12 ) with an expansion pressure silencer ( 9 ) is assigned.
A changed expansion behavior is characterized in that during the intake stroke by releasing the outlet slot ( 4 ) by the piston ( 2 ), in the area of the sub-base fresh air through the outlet slot ( 4 ) above the overflow channel ( 12 ) from the expansion pressure silencer ( 9 ) into the Cylinder ( 2 ) flows and swirls the air or gas mixture in the vacuum immediately and increases the volumetric efficiency.
Ein verändertes Ladungsverhalten ist dadurch gekennzeichnet, das Ende des 3. Taktes durch Freigabe des (der) Auslaßschlitzes (4) durch den Kolben (2), im Bereich des U.T. vom Überschneidungspunkt des 3. Taktes bis zum Überschneidungspunkt des 4. Taktes. Die unter Druck stehenden Abgase im Zylinder (2) sofort über den (die) Auslaßschlitz(e) (4) und Überströmkanal (12) in den Entspannungsdruckschalldämpfer (9) entspannen, die Abgase im Zylinder (2) werden durch das Auslaßventil (7) im 4. Takt vom Kolben (2) entspannt ausgeschoben.2. Combustion piston engine M 4/2 and / or M 6/2 with one or more cylinders ( 2 ), each cylinder ( 2 ), intake valve (s) ( 6 ) and exhaust valve (s) ( 7 ) in The cylinder head ( 3 ) and in the cylinder ( 2 ) in the area of bottom dead center one or more outlet slots ( 4 ) are assigned to each other in connection with a flow channel ( 12 ) with a pressure relief silencer ( 9 ).
A changed charge behavior is characterized by the end of the 3rd cycle by the release of the outlet slot ( 4 ) by the piston ( 2 ), in the region of the UT from the intersection point of the 3rd cycle to the intersection point of the 4th cycle. The pressurized exhaust gases in the cylinder ( 2 ) immediately release via the outlet slot (s) ( 4 ) and overflow channel ( 12 ) into the expansion pressure silencer ( 9 ), the exhaust gases in the cylinder ( 2 ) are released through the exhaust valve ( 7 ) Easily pushed out by the piston ( 2 ) in the 4th cycle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4338645A DE4338645A1 (en) | 1993-11-12 | 1993-11-12 | IC engine with inlet and outlet valves and cylinder wall slide valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4338645A DE4338645A1 (en) | 1993-11-12 | 1993-11-12 | IC engine with inlet and outlet valves and cylinder wall slide valve |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4338645A1 true DE4338645A1 (en) | 1995-05-18 |
Family
ID=6502428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4338645A Withdrawn DE4338645A1 (en) | 1993-11-12 | 1993-11-12 | IC engine with inlet and outlet valves and cylinder wall slide valve |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4338645A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10051325A1 (en) * | 2000-10-17 | 2002-04-18 | Opel Adam Ag | Internal combustion engine, especially a diesel engine, for a motor vehicle comprises channels having openings opening tangentially in to a cylinder and connected on the outside to a compressed air source |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE935337C (en) * | 1943-05-04 | 1955-11-17 | Hubert Erich Dipl-Ing Peterek | Method and device for operating four-stroke piston internal combustion engines |
DE4220200A1 (en) * | 1991-06-20 | 1993-01-21 | Mitsubishi Heavy Ind Ltd | FOUR-STOCK COMBUSTION ENGINE |
US5197434A (en) * | 1989-09-01 | 1993-03-30 | Jaime Suquet | I.c. engines |
-
1993
- 1993-11-12 DE DE4338645A patent/DE4338645A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE935337C (en) * | 1943-05-04 | 1955-11-17 | Hubert Erich Dipl-Ing Peterek | Method and device for operating four-stroke piston internal combustion engines |
US5197434A (en) * | 1989-09-01 | 1993-03-30 | Jaime Suquet | I.c. engines |
DE4220200A1 (en) * | 1991-06-20 | 1993-01-21 | Mitsubishi Heavy Ind Ltd | FOUR-STOCK COMBUSTION ENGINE |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10051325A1 (en) * | 2000-10-17 | 2002-04-18 | Opel Adam Ag | Internal combustion engine, especially a diesel engine, for a motor vehicle comprises channels having openings opening tangentially in to a cylinder and connected on the outside to a compressed air source |
DE10051325B4 (en) * | 2000-10-17 | 2006-06-08 | Adam Opel Ag | Internal combustion engine |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8122 | Nonbinding interest in granting licences declared | ||
8139 | Disposal/non-payment of the annual fee |