EP0990776A1 - Moteur à combustion interne à 2 rangées de cylindres disposées en V - Google Patents

Moteur à combustion interne à 2 rangées de cylindres disposées en V Download PDF

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Publication number
EP0990776A1
EP0990776A1 EP99117325A EP99117325A EP0990776A1 EP 0990776 A1 EP0990776 A1 EP 0990776A1 EP 99117325 A EP99117325 A EP 99117325A EP 99117325 A EP99117325 A EP 99117325A EP 0990776 A1 EP0990776 A1 EP 0990776A1
Authority
EP
European Patent Office
Prior art keywords
camshaft
internal combustion
combustion engine
inlet
cylinder
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.)
Granted
Application number
EP99117325A
Other languages
German (de)
English (en)
Other versions
EP0990776B1 (fr
Inventor
Friedrich Prof.Dr.-Ing. Indra
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.)
Adam Opel GmbH
Original Assignee
Adam Opel GmbH
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 Adam Opel GmbH filed Critical Adam Opel GmbH
Publication of EP0990776A1 publication Critical patent/EP0990776A1/fr
Application granted granted Critical
Publication of EP0990776B1 publication Critical patent/EP0990776B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • 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
    • F01L1/34—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
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0005—Deactivating valves

Definitions

  • the invention relates to an internal combustion engine with two cylinder banks arranged in a V-shape according to the Preamble of claim 1.
  • DE 29 47 580 A1 is a multi-cylinder Internal combustion engine described, the valves of one camshaft below via push rods and rocker arms be operated.
  • the pushrods of the intake valves are with a hydraulic pressure cylinder provided so that their effective length can be changed and so that the cylinders in question can be switched off.
  • a Such multi-cylinder internal combustion engine can also be used as a V-engine be executed.
  • Cylinder banks are also known to be single To arrange the camshaft in the space between the cylinder banks, which via pushrods both the intake valves and also the exhaust valves of both cylinder banks actuated.
  • Such an internal combustion engine is, for example, with DE 43 26 159.
  • DE 44 05 389 A1 has a V-shaped design Internal combustion engine shown in the space between a camshaft is supported in the two cylinder banks is that via push rods and rocker arms both the Intake and exhaust valves of both cylinder banks operated. A second camshaft for actuating pump elements for fuel injection is above arranged the first camshaft. Precautions for cylinder deactivation or at a variable valve opening time are not proposed with this publication or suggested.
  • the invention has for its object a To create an internal combustion engine of the type mentioned which in addition to their compact design and the possibility of cylinder deactivation through switchable Shorten the push rods also variable valve actuation times with relatively little technical effort having.
  • Exhaust valves of both cylinder banks actuated can the arrangement of only one known rotary angle adjustment device in the drive from the first to the second Camshaft on both cylinder banks variable valve opening times on the actuated by the second camshaft Valves can be realized. In general, these will be be the intake valves. It is also used in the drive the first camshaft from the crankshaft further rotation angle adjustment device is provided, then can with this the valve opening times of the exhaust valves can be variably adjusted and controlled by a Rotation angle adjustment in the drive between the first to second camshaft can also the intake valves variable opening times according to motor operation exhibit.
  • the pushrods of both the intake and The exhaust camshaft can be close together on the wall of the two cylinder banks, so that only little space is required and in the upper area of the Space between the two cylinder banks further aggregates, e.g. Parts of the intake system and the fuel processing system housed for the internal combustion engine can be.
  • the arrangement of the switching elements for optional Shorten the push rods for actuating a cylinder deactivation in the lower area of the V-shaped room between the two cylinder banks allows one very simple construction of the valve train in the area of two cylinder heads.
  • the switching elements as hydraulic elements then the hydraulic cylinder can be guided through appropriate holes in the cylinder block consequences.
  • the control of these hydraulic elements is about parallel to the camshafts in the cylinder block running holes easily and economically possible.
  • the pushrods can be advantageous in their lower area generally with a hydraulic device be provided for valve clearance compensation, this with the hydraulic elements to shorten the pushrods can be combined.
  • a crankcase 1 there are two in V-shaped cylinder banks 3 with cylinders 4, in which are pistons 5, which are by means of connecting rods 6 hinged to a crankshaft 2 mounted in the crankcase 1 are.
  • pistons 5 Above the piston 5 is in the Cylinders 4 each have a combustion chamber 7.
  • Each cylinder bank 3 carries a cylinder head 8, which closes the combustion chambers 7.
  • In the cylinder heads 8 are intake and exhaust ports arranged to the combustion chambers 7, which means Valves 9 are controllable.
  • the valves 9 are of valve springs held in the closed position.
  • rocker arms 10 On the shafts of the Valves 9 are on rocker arms 10, which are on cylinder head 8 are pivoted and with pushrods 11.12 in Connect.
  • the pushrods 11, 12, approximately run parallel to the central axes of the cylinders 4, stand with an intake camshaft 13 or Exhaust camshaft 14, both in the lower region of a formed between the two cylinder banks 3 V-shaped Room 15 are arranged in operative connection.
  • the exhaust camshaft 14 is by means of a chain drive 14 on one of the end faces of the internal combustion engine driven by the crankshaft 2.
  • the intake camshaft 13 is by means of a gear drive 17 on the other end of the engine from the exhaust camshaft 14 ago driven.
  • the Gear drive 17 with a rotation angle adjustment device provided so that the intake camshaft 13 opposite the Exhaust camshaft 14 during operation of the internal combustion engine for the purpose of changing valve opening times can be twisted.
  • Such an angle adjustment device can additionally be provided on the chain drive 16 with which then the exhaust camshaft 14 and thus that of their driven intake camshaft 13 with respect to the crankshaft 2 can be rotated. This is a far-reaching one variable adjustment of the valve opening times to the motor requirements possible.
  • the intake camshaft 13 and the exhaust camshaft 14 are in the lower area of the room 15 in one between the two cylinder banks 3 running centrally Level 18 arranged in Fig. 1 by a dash-dotted line Line is shown.
  • the intake camshaft 13 lies close above the exhaust camshaft 14.
  • the pushrods 11, 12 are on their Ends facing camshafts 13, 14 with hydraulic elements 19 provided a switchable shortening of the rods 11.12 enable. This shortening can be continuous or in stages, thus allowing adjustment the valve opening times or a complete one Switching off individual cylinders 4 at partial load of the internal combustion engine.
  • the hydraulic elements 19 are parallel to the camshafts 13, 14 in the cylinder block Driven oil channels (not shown in the drawing). In addition to the hydraulic elements 19 or with them hydraulic valve lash adjusters are connected provided that an independent compensation of the valve clearance to back up.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)
EP99117325A 1998-09-23 1999-09-03 Moteur à combustion interne à 2 rangées de cylindres disposées en V Expired - Lifetime EP0990776B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843588A DE19843588A1 (de) 1998-09-23 1998-09-23 Brennkraftmaschine mit zwei in V-form angeordneten Zylinderbänken
DE19843588 1998-09-23

Publications (2)

Publication Number Publication Date
EP0990776A1 true EP0990776A1 (fr) 2000-04-05
EP0990776B1 EP0990776B1 (fr) 2004-03-24

Family

ID=7881943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99117325A Expired - Lifetime EP0990776B1 (fr) 1998-09-23 1999-09-03 Moteur à combustion interne à 2 rangées de cylindres disposées en V

Country Status (2)

Country Link
EP (1) EP0990776B1 (fr)
DE (2) DE19843588A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6505592B1 (en) * 2001-09-07 2003-01-14 General Motors Corporation Valve train for twin cam three-valve engine
EP3334909B1 (fr) * 2015-08-12 2024-03-13 Cummins, Inc. Architecture de système de mise en phase de came
DE102016113054A1 (de) * 2016-07-15 2018-01-18 Man Diesel & Turbo Se Brennkraftmaschine und Baukastensystem für einen Ventiltrieb einer Brennkraftmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026249A1 (fr) * 1977-11-07 1981-04-08 Horace T. Junior Brock Dispositif de mise hors service de cylindres
EP0037269A1 (fr) * 1980-03-28 1981-10-07 Engine Control Industries Ltd. Système pour la mise hors service des cylindres d'un moteur à combustion interne
US4337739A (en) * 1980-03-24 1982-07-06 Jordan Edgar R Valve control mechanism for internal combustion engines
US4723516A (en) * 1985-11-25 1988-02-09 Slagley Michael W Valve open duration and timing controller
DE4405389A1 (de) * 1994-02-19 1995-08-24 Kloeckner Humboldt Deutz Ag V-förmige ausgebildete Brennkraftmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS526813A (en) * 1975-07-05 1977-01-19 Nissan Motor Co Ltd Valve lift method for an internal combustion engine
JPH03107511A (ja) * 1989-09-21 1991-05-07 Yamaha Motor Co Ltd バルブタイミング遅角装置
DE4212110A1 (de) * 1992-04-10 1993-10-14 Kloeckner Humboldt Deutz Ag Dieselbrennkraftmaschine
US5560329A (en) * 1994-10-31 1996-10-01 General Motors Corporation Valvetrain for a pushrod engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026249A1 (fr) * 1977-11-07 1981-04-08 Horace T. Junior Brock Dispositif de mise hors service de cylindres
US4337739A (en) * 1980-03-24 1982-07-06 Jordan Edgar R Valve control mechanism for internal combustion engines
EP0037269A1 (fr) * 1980-03-28 1981-10-07 Engine Control Industries Ltd. Système pour la mise hors service des cylindres d'un moteur à combustion interne
US4723516A (en) * 1985-11-25 1988-02-09 Slagley Michael W Valve open duration and timing controller
DE4405389A1 (de) * 1994-02-19 1995-08-24 Kloeckner Humboldt Deutz Ag V-förmige ausgebildete Brennkraftmaschine

Also Published As

Publication number Publication date
EP0990776B1 (fr) 2004-03-24
DE19843588A1 (de) 2000-03-30
DE59908938D1 (de) 2004-04-29

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