DE3320835A1 - Multi-position drive - Google Patents

Multi-position drive

Info

Publication number
DE3320835A1
DE3320835A1 DE19833320835 DE3320835A DE3320835A1 DE 3320835 A1 DE3320835 A1 DE 3320835A1 DE 19833320835 DE19833320835 DE 19833320835 DE 3320835 A DE3320835 A DE 3320835A DE 3320835 A1 DE3320835 A1 DE 3320835A1
Authority
DE
Germany
Prior art keywords
camshaft
fuel
drive
engines
position drive
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.)
Ceased
Application number
DE19833320835
Other languages
German (de)
Inventor
Dieter 7460 Balingen Fuoß
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 DE19833320835 priority Critical patent/DE3320835A1/en
Publication of DE3320835A1 publication Critical patent/DE3320835A1/en
Ceased 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
    • 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
    • F01L1/344—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 changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/34403—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 changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft
    • F01L1/34406—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 changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft the helically teethed sleeve being located in the camshaft driving pulley
    • 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

Landscapes

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

Abstract

The multi-position drive has applications in internal combustion engines, especially in four-stroke spark ignition engines with valve control, which are largely used in passenger vehicles. In the case of these four-stroke engines the aim is to minimise fuel consumption whilst maximising the power output. This demand would be met if the fuel-air mixture present in the cylinder were to remain there up to the completion of combustion. In the case of the present valve control with fixed control times this is not ensured since these control times are ideal only for a small engine speed range and otherwise the fuel-air mixture either escapes unused through the exhaust system or is forced back into the intake port. The multi-position drive solves this problem in that it rotates the inlet and the outlet camshaft in relation to the crankshaft, thereby adjusting the control times ideally to the speed of the engine. The rotation of the camshafts is performed by an electronically controlled stepping motor and a special torsion segment.

Description

Beschreibungdescription

Multipositionsantrieb: nie Erfindung betrifft einen Antrieb fir Nockenwellen von J3rennkraftmaschinen, wobei das Antriebsrad der Nockenwelle nicht wie bisher fest auf der Nockenwelle angebracht ist, sondern in der Stellung gegenüber der Nockenwelle verschoben werden kann.Multi-position drive: The invention never relates to a drive for camshafts of J3rennkraftmaschinen, whereby the drive wheel of the camshaft is not as before is firmly attached to the camshaft, but in the position opposite the camshaft can be moved.

Die Aufgabe der Erfindung besteht darin, die Steuerzeiten einer Brennkraftmaschine ihrer Drehzahl anzupassen, um dadurch einen besseren Füllungsgrad der Zylinder zu erreichen, was gegenüber der herkömmlichen Steuerung einen Leistungszuwachs@ in einem großen Drehzahlbereich mit sich bringt.The object of the invention is to determine the timing of an internal combustion engine to adjust their speed in order to achieve a better degree of filling of the cylinders achieve, which compared to the conventional control @ in brings a large speed range with it.

Darüber hinaus läßt sich ein Frischgasverlust über das Auspuffsystem sowie ein Zurückströmen des Frischgases aus dem Zylinder in das Ansaugsystem verhindern, sofern Ein- und Auslaßventile über je eine Nockenwelle gesteuert werden. Dies bedeutet bei gleichzeitigem Leistungszuwachs einen niedrige@en Kraftstoffverbrauch der Brennkraftmaschine.In addition, there can be a loss of fresh gas through the exhaust system and prevent the fresh gas from flowing back from the cylinder into the intake system, provided that the inlet and outlet valves are each controlled by a camshaft. this means with a simultaneous increase in power, a low fuel consumption of the internal combustion engine.

Die Aufgabe wird erfindungsgemäß dadurch erfüllt, daß das Antriebsrad 3 auf einer Antriebswelle 2 mit Geradverzahnung gelagert ist, wobei die Antriebswelle 2 axial verschiebbar ist. Die erwähnte Welle 2 läuft über eine Schrägverzahnung in der Nockenwel] e 4. Somit verläuft der Kraftfluß von der Kurbelwelle über eine Kette, einen Zahnriemen 5 o. A. zum Antriebsrad 3 und vom Antriebsrad 3 über die Antriebswelle 2 zur Nockenwelle 4 und zu den Ventilen 7.The object is achieved according to the invention in that the drive wheel 3 is mounted on a drive shaft 2 with straight teeth, the drive shaft 2 is axially displaceable. The aforementioned shaft 2 runs over a helical tooth system in the cam shaft 4. Thus, the power flow from the crankshaft runs through a Chain, a toothed belt 5 o. A. to the drive wheel 3 and from the drive wheel 3 via the Drive shaft 2 to camshaft 4 and to valves 7.

Das Antriebsrad 3 und die Nockenwelle 4 bleiben in axial fixierter Stellung, während die Antriebswelle 2 axial verschoben wird.The drive wheel 3 and the camshaft 4 remain axially fixed Position while the drive shaft 2 is axially displaced.

Damit nun die Nockenwelle 4 gegenüber dem Antriebsrad 3 bei den jeweiligen Drehzahlen immer die frfi.nstigste Stellung einnimmt, wird die Antriebswelle 2 , welche axial verschiebbar gelagert ist, durch einen sogenannten Schrittmotor 1 axial verschoben und in den entsprechenden Positionen fixiert.So that now the camshaft 4 with respect to the drive wheel 3 in the respective Speeds always takes the most favorable position, the drive shaft 2, which is axially displaceable by a so-called stepper motor 1 axially moved and fixed in the corresponding positions.

Ein axiales Verschieben der Antriebswelle 2 hat zur Folge, daß die Nockenwelle 4 gegenüber dem Antriebsrad 3 verschoben wird, da die Nockenwelle 4 über eine Schrägverzahnung o.Ä. mit der Antriebswelle 2 in Verbindung steht. Das Antriebsrad 3 hingegen behält seine Position bei, da es über eine Geradverzahnung mit der Antriebswelle 2 verbunden ist und-außerdem die Position durch die Kurbelwelle 6 über den Zahnriemen 5 oder einen entsprechenden Antrieb bestimmt ist.Axial displacement of the drive shaft 2 has the consequence that the Camshaft 4 is shifted relative to the drive wheel 3, since the camshaft 4 is in connection with the drive shaft 2 via helical gearing or the like. That Drive wheel 3, on the other hand, maintains its position because it has straight teeth is connected to the drive shaft 2 and-also the position through the crankshaft 6 is determined via the toothed belt 5 or a corresponding drive.

Die Steuerung des Schrittmotors 1 kann z.B. durch einen Computer erfolgen, der die Drehzahl an einer geeigneten Stelle abfragt und diese Information in ein Signal für den Schrittmotor 1 . umsetzt.The stepper motor 1 can be controlled e.g. by a computer, which queries the speed at a suitable point and converts this information into a Signal for the stepper motor 1. implements.

- Leerseite- Blank page

Claims (1)

Patentanspruch Anspruch 1: Antrieb für Nockenwellen von Brennkraftmaschinen, dadurch gekennzeichnet, daß das Antriebsrad, das die Nockenwelle antreibt, gegenüber der Nockenwelle bezüglich der Stellungen zueinander verschiebbar ist.Claim Claim 1: Drive for camshafts of internal combustion engines, characterized in that the drive wheel that drives the camshaft is opposite the camshaft is displaceable relative to one another with respect to the positions. Anspruch c': Antrieb für Nockenwellen nach Anspruch 1, dadurch gekennzeichnet, daß das Antriebsrad gegenüber der Nockenwelle über einen sogenannten Schrittmotor und mittels einer Antriebswelle, auf der sowohl das Antriebsrad als auch die Nockenwelle über unterschiedliche Verzahnungen gelagert sind, verschoben werden kann.Claim c ': Drive for camshafts according to Claim 1, characterized in that that the drive wheel opposite the camshaft via a so-called stepper motor and by means of a drive shaft on which both the drive wheel and the camshaft are stored via different gears, can be moved.
DE19833320835 1983-06-09 1983-06-09 Multi-position drive Ceased DE3320835A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833320835 DE3320835A1 (en) 1983-06-09 1983-06-09 Multi-position drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833320835 DE3320835A1 (en) 1983-06-09 1983-06-09 Multi-position drive

Publications (1)

Publication Number Publication Date
DE3320835A1 true DE3320835A1 (en) 1984-12-13

Family

ID=6201042

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833320835 Ceased DE3320835A1 (en) 1983-06-09 1983-06-09 Multi-position drive

Country Status (1)

Country Link
DE (1) DE3320835A1 (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987003056A1 (en) * 1985-11-07 1987-05-21 Stidworthy Frederick M A variable drive mechanism
EP0245791A1 (en) * 1986-05-14 1987-11-19 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Device for the relative rotation of two shafts geared together,in particular a crankshaft and a camshaft borne in a machine sump
WO1991002897A1 (en) * 1989-08-23 1991-03-07 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
WO1991007574A1 (en) * 1989-11-11 1991-05-30 Audi Ag Drive arrangement for a camshaft fitted in the cylinder head of an internal combustion engine
EP0903470A1 (en) 1997-09-19 1999-03-24 TCG UNITECH Aktiengesellschaft Device for variable camshaft timing in an internal combustion engine
EP1039100A2 (en) 1999-03-23 2000-09-27 TCG UNITECH Aktiengesellschaft Camshaft phaser for an internal combustion engine
EP1039101A2 (en) 1999-03-23 2000-09-27 TCG UNITECH Aktiengesellschaft Camshaft phaser for an internal combustion engine
US6138622A (en) * 1997-09-19 2000-10-31 Tcg United Aktiengesellschaft Device for adjusting the phase angle of a camshaft of an internal combustion engine
EP1052379A2 (en) 1999-05-12 2000-11-15 TCG UNITECH Aktiengesellschaft Camshaft phaser for an internal combustion engine
US6328006B1 (en) 1999-03-23 2001-12-11 Tcg Unitech Aktiengesellschaft Device for adjusting the phase angle of a camshaft of an internal combustion engine
WO2001094766A1 (en) * 2000-06-05 2001-12-13 Volvo Lastvagnar Ab Device for controlling the phase angle between a first and a second crankshaft
AT409786B (en) * 1999-03-23 2002-11-25 Tcg Unitech Ag Arrangement for displacing an internal combustion engine camshaft has electric motor housing mounting elements fed into drive wheel via apertures that limit camshaft adjustment range
AT410825B (en) * 1999-03-23 2003-08-25 Tcg Unitech Ag Adjusting device for camshaft for IC engines has electric motor with disc armature rotor for high torque
WO2003078806A1 (en) * 2002-03-18 2003-09-25 Ina-Schaeffler Kg Device for controlling the cylinder charge of an externally ignited internal combustion engine
EP3351754A1 (en) * 2017-01-20 2018-07-25 HUSCO Automotive Holdings LLC Cam phasing system
US10072537B2 (en) 2015-07-23 2018-09-11 Husco Automotive Holdings Llc Mechanical cam phasing system and methods
US10900387B2 (en) 2018-12-07 2021-01-26 Husco Automotive Holdings Llc Mechanical cam phasing systems and methods

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987003056A1 (en) * 1985-11-07 1987-05-21 Stidworthy Frederick M A variable drive mechanism
EP0245791A1 (en) * 1986-05-14 1987-11-19 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Device for the relative rotation of two shafts geared together,in particular a crankshaft and a camshaft borne in a machine sump
WO1991002897A1 (en) * 1989-08-23 1991-03-07 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
WO1991007574A1 (en) * 1989-11-11 1991-05-30 Audi Ag Drive arrangement for a camshaft fitted in the cylinder head of an internal combustion engine
US6138622A (en) * 1997-09-19 2000-10-31 Tcg United Aktiengesellschaft Device for adjusting the phase angle of a camshaft of an internal combustion engine
US5979382A (en) * 1997-09-19 1999-11-09 Tcg Unitech Aktiengesellschaft Device for adjusting the phase angle of a camshaft of an internal combustion engine
AT407282B (en) * 1997-09-19 2001-02-26 Tcg Unitech Ag DEVICE FOR ADJUSTING A CAMSHAFT
EP0903470A1 (en) 1997-09-19 1999-03-24 TCG UNITECH Aktiengesellschaft Device for variable camshaft timing in an internal combustion engine
EP1039100A2 (en) 1999-03-23 2000-09-27 TCG UNITECH Aktiengesellschaft Camshaft phaser for an internal combustion engine
EP1039101A2 (en) 1999-03-23 2000-09-27 TCG UNITECH Aktiengesellschaft Camshaft phaser for an internal combustion engine
AT410825B (en) * 1999-03-23 2003-08-25 Tcg Unitech Ag Adjusting device for camshaft for IC engines has electric motor with disc armature rotor for high torque
US6257186B1 (en) 1999-03-23 2001-07-10 Tcg Unitech Aktiengesellschaft Device for adjusting the phase angle of a camshaft of an internal combustion engine
US6302073B1 (en) 1999-03-23 2001-10-16 Tcg Unitech Aktiengesellschaft Device for adjusting the phase angle of a camshaft of an internal combustion engine
US6328006B1 (en) 1999-03-23 2001-12-11 Tcg Unitech Aktiengesellschaft Device for adjusting the phase angle of a camshaft of an internal combustion engine
AT409786B (en) * 1999-03-23 2002-11-25 Tcg Unitech Ag Arrangement for displacing an internal combustion engine camshaft has electric motor housing mounting elements fed into drive wheel via apertures that limit camshaft adjustment range
EP1052379A2 (en) 1999-05-12 2000-11-15 TCG UNITECH Aktiengesellschaft Camshaft phaser for an internal combustion engine
WO2001094766A1 (en) * 2000-06-05 2001-12-13 Volvo Lastvagnar Ab Device for controlling the phase angle between a first and a second crankshaft
WO2003078806A1 (en) * 2002-03-18 2003-09-25 Ina-Schaeffler Kg Device for controlling the cylinder charge of an externally ignited internal combustion engine
US10072537B2 (en) 2015-07-23 2018-09-11 Husco Automotive Holdings Llc Mechanical cam phasing system and methods
US10711657B2 (en) 2015-07-23 2020-07-14 Husco Automotive Holdings Llc Mechanical cam phasing systems and methods
US10344631B2 (en) 2015-07-23 2019-07-09 Husco Automotive Holdings Llc Mechanical cam phasing systems and methods
US10557383B2 (en) 2017-01-20 2020-02-11 Husco Automotive Holdings Llc Cam phasing systems and methods
JP2018128011A (en) * 2017-01-20 2018-08-16 フスコ オートモーティブ ホールディングス エル・エル・シーＨＵＳＣＯ Ａｕｔｏｍｏｔｉｖｅ Ｈｏｌｄｉｎｇｓ ＬＬＣ Cam phasing systems and cam phasing methods
CN108331632A (en) * 2017-01-20 2018-07-27 胡斯可汽车控股有限公司 Cam phasing system and method
EP3351754A1 (en) * 2017-01-20 2018-07-25 HUSCO Automotive Holdings LLC Cam phasing system
CN108331632B (en) * 2017-01-20 2021-12-28 胡斯可汽车控股有限公司 Cam phasing systems and methods
CN114215622A (en) * 2017-01-20 2022-03-22 胡斯可汽车控股有限公司 Cam phasing system
CN114215622B (en) * 2017-01-20 2023-07-14 胡斯可汽车控股有限公司 Cam phasing system
US10900387B2 (en) 2018-12-07 2021-01-26 Husco Automotive Holdings Llc Mechanical cam phasing systems and methods
US11352916B2 (en) 2018-12-07 2022-06-07 Husco Automotive Holdings Llc Mechanical cam phasing systems and methods

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Legal Events

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OP8 Request for examination as to paragraph 44 patent law
8131 Rejection