EP0979928A1 - Moteur à combustion interne avec entrainement des soupapes avec culbuteurs - Google Patents

Moteur à combustion interne avec entrainement des soupapes avec culbuteurs Download PDF

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Publication number
EP0979928A1
EP0979928A1 EP98115057A EP98115057A EP0979928A1 EP 0979928 A1 EP0979928 A1 EP 0979928A1 EP 98115057 A EP98115057 A EP 98115057A EP 98115057 A EP98115057 A EP 98115057A EP 0979928 A1 EP0979928 A1 EP 0979928A1
Authority
EP
European Patent Office
Prior art keywords
camshaft
crankshaft
rocker arm
reciprocating engine
cylinder head
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Withdrawn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
EP98115057A
Other languages
German (de)
English (en)
Inventor
Urs Wenger
Hans-Rudolf Jenni
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.)
Wenko AG Burgdorf
Original Assignee
Wenko AG Burgdorf
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 Wenko AG Burgdorf filed Critical Wenko AG Burgdorf
Priority to EP98115057A priority Critical patent/EP0979928A1/fr
Priority to DE59812391T priority patent/DE59812391D1/de
Priority to AT98811260T priority patent/ATE285023T1/de
Priority to EP98811260A priority patent/EP0979929B1/fr
Priority to ES98811260T priority patent/ES2235307T3/es
Priority to BR9912940-0A priority patent/BR9912940A/pt
Priority to AU55113/99A priority patent/AU5511399A/en
Priority to JP2000565279A priority patent/JP2002522700A/ja
Priority to PCT/EP1999/005714 priority patent/WO2000009864A1/fr
Priority to US09/762,784 priority patent/US6520133B1/en
Publication of EP0979928A1 publication Critical patent/EP0979928A1/fr
Priority to US10/339,722 priority patent/US6951196B2/en
Priority to US10/339,721 priority patent/US20030098002A1/en
Withdrawn legal-status Critical Current

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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
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
    • 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
    • F01L1/02—Valve drive
    • 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
    • F01L1/02—Valve drive
    • F01L1/022—Chain drive
    • 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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • 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
    • F01L1/02—Valve drive
    • F01L1/024—Belt drive
    • 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
    • F01L1/02—Valve drive
    • F01L1/026—Gear drive
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/20—SOHC [Single overhead camshaft]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis

Definitions

  • the present invention describes a reciprocating piston engine with rocker arm valve control according to the preamble of independent claims.
  • the invention for example closer to a 2-cylinder in-line engine explained, but applies to reciprocating engines with any Number of cylinders.
  • FIG. 1 schematically show four different valve controls, as described, for example, in the book Automotive paperback Bosch "VDI-Verlag, 19th edition, shows.
  • One possible embodiment is the rocker arm valve control shown in Fig. 1, Fig. 3.
  • This type of valve control is used today especially in engines with low friction
  • the main disadvantage of this type of construction is the greatly increased effort for machining and assembling the valve train, the complex maintenance, and the increased space requirement in the longitudinal direction of the cylinders.
  • FIGS 2 to 5 schematically show parts of the drive a reciprocating piston engine according to the invention, with piston 1, of which only one is shown, which is on the connecting rod 2 attached and via the crank pin 3 with the crankshaft 4th are connected.
  • a balance shaft 5 can also be seen with sprocket 5K, one directly with the crankshaft connected chain wheel 6, a chain tensioning wheel 7 to the chain 8 to be able to tension the camshaft sprocket 9 drives, which enables the rotation of the camshaft 10, which in turn actuates the rocker arm 11, which the move indicated valves 19 along the valve axis 12.
  • One in the embodiment as a so-called in-line engine has internal combustion engine shown in reciprocating piston design two parallel, not shown cylinders in which the pistons 1 run up and down.
  • the one below the cylinder arranged crankshaft 4 has two crank pins 3, each of which a connecting rod 2 is mounted.
  • Each of the connecting rods is connected to a piston 1 in the respective cylinder runs up and down.
  • the camshaft 10 is driven by a Camshaft sprocket 9, which is between the There are pairs of cams for the individual cylinders. in the Embodiment is this camshaft sprocket in the middle of the camshaft, but it can be in another version also offset from the center be arranged.
  • the camshaft 10 is through the timing chain 8 on the Camshaft sprocket 9, the chain tensioning wheel 7, the counter-rotating balance shaft 5 with Balance shaft sprocket 5K and the crankshaft sprocket 6 driven by the crankshaft 4.
  • a further possible execution of the camshaft drive includes a version with toothed belt and Toothed belt wheels instead of chain and chain wheels.
  • Figures 6 and 7 illustrate the installation of the camshaft 10 and the Rocker arm 11 directly into the cast on the cylinder head 24 Recordings 15 and 16. This has the advantage of a very simple editing and a very simple assembly of the Camshaft and the rocker arm.
  • Figures 6 and 7 show only cutouts from the cylinder head 24 and cylinder head cover 14, in which all the organs described are arranged.
  • the assembly is shown below using the example of the camshaft 10 explained in more detail and the advantages listed in detail.
  • the present invention must be the pre-cast Recordings 16 in the cylinder head 24 for the camshaft 10, the is a hollow shaft, only to the desired shaft size be drilled so that those with the inside Roller bearings 20 provided camshaft 10 between the Recordings 16 placed and a mounting shaft 17 inserted can be.
  • the cylinder head cover 14 with the corresponding machined side surfaces 21 serves the lateral Fixing the assembly shaft 17 for the camshaft 10.
  • rocker arm 11 are also designed as hollow shafts with roller bearings 22 and are placed between the receptacles 15 according to FIG. 7, whereupon the rocker arm assembly shafts 13 inserted and fixed by the side surfaces 23 on the cylinder head cover 14 become.
  • An advantage of the invention is therefore a very simple one Machining of the valve train and a very simple assembly the camshaft and the rocker arm.
  • Another advantage of Invention is the use of roller bearings for storage of camshaft and rocker arms, which makes them very low Friction losses are made possible and no pressure oil supply is needed.
  • Another great advantage of the invention is that none additional screw connection or other fastening of Bearing blocks is needed. Due to the special design of the cylinder head cover there are no bearings needed. In addition, there are no interrupted ones Sealing surfaces between the cylinder head cover and the cylinder head and it becomes a very simple seal on the candle hole enables. Due to the possibility of the cylinder head cover is not to be used to fix the assembly shafts further securing the camshaft and the rocker arm required. The invention also makes maintenance like Valve clearance control and setting are significantly simplified and camshafts and rocker arms can be extremely simple be replaced.
  • the chain tensioning wheel 7 is in line with the Crankshaft sprocket 6 arranged so that both a sufficiently large wrap angle for all shafts than also a reversal of the direction of rotation for the balancer shaft 5 is achieved.
  • the chain tensioning wheel 7 can be used to reduce the Friction on roller bearings and only on the spray oil the chain be lubricated enough.
  • This measure of the invention also allows a very simple and compact construction of the valve train.
  • Invention with toothed belt possible.
  • the Sprockets replaced by toothed belt wheels.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
EP98115057A 1998-08-11 1998-08-11 Moteur à combustion interne avec entrainement des soupapes avec culbuteurs Withdrawn EP0979928A1 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
EP98115057A EP0979928A1 (fr) 1998-08-11 1998-08-11 Moteur à combustion interne avec entrainement des soupapes avec culbuteurs
DE59812391T DE59812391D1 (de) 1998-08-11 1998-12-23 Hubkolbenmotor mit Kipphebel-Ventilsteuerung
AT98811260T ATE285023T1 (de) 1998-08-11 1998-12-23 Hubkolbenmotor mit kipphebel-ventilsteuerung
EP98811260A EP0979929B1 (fr) 1998-08-11 1998-12-23 Moteur à piston à commande de soupape par culbuteur
ES98811260T ES2235307T3 (es) 1998-08-11 1998-12-23 Motor de piston con mando de valvula por balancin.
BR9912940-0A BR9912940A (pt) 1998-08-11 1999-08-06 Motor de êmbolo de levantamento com comando de válvula de balancim
AU55113/99A AU5511399A (en) 1998-08-11 1999-08-06 Reciprocating engine with rocker-arm valve control
JP2000565279A JP2002522700A (ja) 1998-08-11 1999-08-06 ロッカバルブ装置を備えた往復動エンジン
PCT/EP1999/005714 WO2000009864A1 (fr) 1998-08-11 1999-08-06 Moteur a pistons a commande de soupapes par culbuteurs
US09/762,784 US6520133B1 (en) 1998-08-11 1999-08-06 Reciprocating engine with rocker-arm valve control
US10/339,722 US6951196B2 (en) 1998-08-11 2003-01-09 Reciprocating engine with rocker valve gear
US10/339,721 US20030098002A1 (en) 1998-08-11 2003-01-09 Reciprocating engine with rocker valve gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98115057A EP0979928A1 (fr) 1998-08-11 1998-08-11 Moteur à combustion interne avec entrainement des soupapes avec culbuteurs

Publications (1)

Publication Number Publication Date
EP0979928A1 true EP0979928A1 (fr) 2000-02-16

Family

ID=8232441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98115057A Withdrawn EP0979928A1 (fr) 1998-08-11 1998-08-11 Moteur à combustion interne avec entrainement des soupapes avec culbuteurs

Country Status (4)

Country Link
EP (1) EP0979928A1 (fr)
AT (1) ATE285023T1 (fr)
DE (1) DE59812391D1 (fr)
ES (1) ES2235307T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10252997A1 (de) * 2002-11-14 2004-05-27 Bayerische Motoren Werke Ag Drehaktor-Vorrichtung zur Hubsteuerung von Gaswechselventilen im Zylinderkopf einer Brennkraftmaschine
DE102013219940A1 (de) * 2013-10-01 2015-04-02 Bayerische Motoren Werke Aktiengesellschaft Hubkolben-Brennkraftmaschine mit einer Kurbelwelle

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE801241C (de) * 1949-08-25 1950-12-28 Nsu Werke Akt Ges Nachstellbare Kipphebel-Anordnung fuer die Ventilsteuerung von Brennkraftmaschinen
GB2157770A (en) * 1984-03-26 1985-10-30 Honda Motor Co Ltd Decompression device for internal combustion engine
DE3630128A1 (de) * 1986-09-04 1988-03-17 Karlheinz Menkhoff Gleitlagerung mit feststehender welle
JPH01262327A (ja) * 1988-04-13 1989-10-19 Honda Motor Co Ltd エンジンの２次バランサー駆動機構
JPH05214917A (ja) * 1992-01-31 1993-08-24 Suzuki Motor Corp エンジンのテンショナ潤滑装置
DE4223325C1 (de) * 1992-07-16 1993-10-14 Schaeffler Waelzlager Kg Voreinstellbare Exzenterspannrolle
US5605077A (en) * 1994-09-30 1997-02-25 Honda Giken Kogyo Kabushiki Kaisha Camshaft supporting structure in an engine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE801241C (de) * 1949-08-25 1950-12-28 Nsu Werke Akt Ges Nachstellbare Kipphebel-Anordnung fuer die Ventilsteuerung von Brennkraftmaschinen
GB2157770A (en) * 1984-03-26 1985-10-30 Honda Motor Co Ltd Decompression device for internal combustion engine
DE3630128A1 (de) * 1986-09-04 1988-03-17 Karlheinz Menkhoff Gleitlagerung mit feststehender welle
JPH01262327A (ja) * 1988-04-13 1989-10-19 Honda Motor Co Ltd エンジンの２次バランサー駆動機構
JPH05214917A (ja) * 1992-01-31 1993-08-24 Suzuki Motor Corp エンジンのテンショナ潤滑装置
DE4223325C1 (de) * 1992-07-16 1993-10-14 Schaeffler Waelzlager Kg Voreinstellbare Exzenterspannrolle
US5605077A (en) * 1994-09-30 1997-02-25 Honda Giken Kogyo Kabushiki Kaisha Camshaft supporting structure in an engine

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"Kraftfahrtechnisches Taschenbuch Bosch", VDI-VERLAG 19
PATENT ABSTRACTS OF JAPAN vol. 014, no. 023 (M - 920) 17 January 1990 (1990-01-17) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 656 (M - 1521) 6 December 1993 (1993-12-06) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10252997A1 (de) * 2002-11-14 2004-05-27 Bayerische Motoren Werke Ag Drehaktor-Vorrichtung zur Hubsteuerung von Gaswechselventilen im Zylinderkopf einer Brennkraftmaschine
US7007647B2 (en) 2002-11-14 2006-03-07 Bayerische Motoren Werke Ag Rotary actuator device for controlling the stroke of gas charge exchange valves in the cylinder head of an internal combustion engine
DE102013219940A1 (de) * 2013-10-01 2015-04-02 Bayerische Motoren Werke Aktiengesellschaft Hubkolben-Brennkraftmaschine mit einer Kurbelwelle

Also Published As

Publication number Publication date
DE59812391D1 (de) 2005-01-20
ATE285023T1 (de) 2005-01-15
ES2235307T3 (es) 2005-07-01

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