WO2002029213A1 - Element support deconnectable - Google Patents

Element support deconnectable Download PDF

Info

Publication number
WO2002029213A1
WO2002029213A1 PCT/EP2001/009977 EP0109977W WO0229213A1 WO 2002029213 A1 WO2002029213 A1 WO 2002029213A1 EP 0109977 W EP0109977 W EP 0109977W WO 0229213 A1 WO0229213 A1 WO 0229213A1
Authority
WO
WIPO (PCT)
Prior art keywords
bore
inner element
outer housing
housing
slide
Prior art date
Application number
PCT/EP2001/009977
Other languages
German (de)
English (en)
Inventor
Michael Haas
Bodo RÖRIG
Dieter Schmidt
Joachim Seitz
Original Assignee
Ina-Schaeffler Kg
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
Priority claimed from DE2000148620 external-priority patent/DE10048620A1/de
Application filed by Ina-Schaeffler Kg filed Critical Ina-Schaeffler Kg
Priority to AU2001287705A priority Critical patent/AU2001287705A1/en
Priority to JP2002532768A priority patent/JP2004522885A/ja
Priority to CA002421871A priority patent/CA2421871A1/fr
Publication of WO2002029213A1 publication Critical patent/WO2002029213A1/fr

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
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • 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
    • F01L1/14—Tappets; Push rods
    • 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 a switchable support element for a valve train of an internal combustion engine, with an outer housing, an inner element, a hydraulic lash adjuster and coupling means, the outer housing with its outer jacket being installed in a receptacle of a cylinder head and having a longitudinal bore in which the inner element is axially decoupled Movable, which has a further bore in which a pressure piston with a head is received as part of the play compensation element, the coupling means consisting of at least one bore running radially or secant in the inner element and in the outer housing and at least one associated slide, which bores in a relative position of the inner element to the outer housing are aligned with one another, and the slide for the coupling case is partially displaced from the bore of the outer housing into the bore of the inner element by means of a loading means is noticeable.
  • a generic support element is shown in DE 44 22 340 A1.
  • a saw called lost-motion compression spring which increases the overall length.
  • the bore for the slide in the inner element leads radially through the entire inner element and is arranged axially below the play compensation element. This results in an unfavorable nested construction. Since, for example, cooling water or gas exchange ducts run in the immediate area of the receptacle in the cylinder head for the support element, the installation depth of the relatively long support element is limited or existing cylinder heads have to be changed in a complex manner. However, these changes are often not possible, since this would represent an intervention in the flow conditions, in particular in the gas exchange channels.
  • the object of the invention is therefore to create a support element of the aforementioned type which can be switched off and in which the disadvantages cited are eliminated with simple means.
  • this object is achieved in that the bore of the inner element is made as a blind bore, the axial line of which intersects the further bore of the inner element.
  • the loading means for the slide which is manufactured, for example, as a rod
  • the loading means for the slide are to be installed in a housing which runs in the cylinder head and adjoins the receptacle of the outer housing.
  • a height stop for the inner element relative to the outer housing can also be realized in this area.
  • additional anti-rotation devices or height stop devices can be dispensed with.
  • the housing for the actuating means is expediently arranged in a region of the cylinder head which does not cut the cooling ducts, gas exchange ducts mentioned above, but also spark plug ducts, camshaft bearings and the like.
  • the slide with its loading means is therefore largely outside the support element and only engages it radially or secant-like. It is also conceivable for the slider to engage in a skewed manner or for direct coupling via, for example, balls, pawls or bolts which are acted upon by the slider, so that the latter is not a direct engagement element.
  • the slide is acted upon electromagnetically or hydraulically.
  • the latter itself can delimit a pressure chamber for hydraulic medium on its outer end face or can be designed as an actuator rod which is provided with an anchor plate for electromagnetic exposure.
  • the invention is explained in more detail with reference to the drawing.
  • the single figure shows a schematic representation of a support element that can be switched off in longitudinal section.
  • FIG. 1 discloses a support element 1 that can be switched off.
  • This consists of an outer housing 2, which is installed with its outer jacket 3 in a fixed position in a receptacle 4 of a cylinder head 5.
  • the outer housing 2 has a longitudinal bore 6.
  • An inner element 7 with its outer jacket 8 runs in this.
  • An axially movable pressure piston 10 is installed in a bore 9 of the inner element 7 as part of a hydraulic lash adjuster element 11, which is not explained in detail.
  • a high-pressure chamber 14 for hydraulic medium runs between a bottom 12 of the inner element 7 and a facing check valve 13.
  • a lost motion spring 14b is clamped between the bottom 12 and a bottom 14a of the outer housing 2.
  • the pressure piston 10 has a head 15 projecting beyond the inner element 7. This serves as a support for a switchable or non-switchable rocker arm, not shown in the drawing.
  • the inner element 7 and the outer housing 2 each have a bore 16, 17 which are aligned with one another in the illustration shown here.
  • the bore 16 of the inner element 7 is designed as a blind bore and runs on one Height of the pressure piston 10. It thus intersects the bore 9 of the inner element 7 with its axial line.
  • the bore 17 of the outer housing 2 is made as a through hole.
  • a housing section 18 of a housing 19 runs therein.
  • the inside of the housing section 18 extends into an axial groove 21 of the outer casing 8 and is laterally encompassed by this axial groove 21.
  • This design serves to prevent the inner element 7 from rotating relative to the outer housing 2 and thus a circumferential position assignment of the bores 16, 17. It can be provided that an axial shoulder 21, which engages under the inner side 20, also has an axial shoulder Location assignment of the holes 16, 17 is realized.
  • the bores 16, 17 are part of a coupling means 22.
  • Another component of the coupling means 22 is a slide 23, which is only indicated here in the drawing. It extends in the housing 19 or is enclosed by the housing section 18. Since, according to the variant shown here, the bores 16, 17 are aligned with one another, the slide 23 could be displaced in sections with its inner end face 25 into the bore 16 of the inner element 7 by the force of its action means 24. The support element 1 would thus be switched on and the gas exchange valve acted upon by the rocker arm would open in the sense of a maximum stroke.
  • the inner element 7 is thus displaced relative to the outer housing 2 when the cam is lifted.
  • the gas exchange valve would remain closed and the rocker arm would pivot on the support element side.
  • the support element 1 requires only a very small amount of space.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

L'invention concerne un élément support hydraulique (1) pouvant être déconnecté, ne nécessitant qu'un espace réduit. Un perçage (16) destiné à un poussoir (23) s'étend sur le côté d'un piston plongeur (10) d'un élément de compensation de jeu (11) hydraulique dans l'élément intérieur (7), et est conçu en tant que perçage borgne. Ainsi, le perçage de l'élément intérieur et l'élément de compensation de jeu ne doivent plus nécessairement être imbriqués l'un sur l'autre. Par ailleurs, le poussoir (23) est intégré dans un boîtier (19) s'étendant dans la tête de cylindre (5).
PCT/EP2001/009977 2000-09-30 2001-08-30 Element support deconnectable WO2002029213A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2001287705A AU2001287705A1 (en) 2000-09-30 2001-08-30 Disconnectable support element
JP2002532768A JP2004522885A (ja) 2000-09-30 2001-08-30 係脱自在の支持部材
CA002421871A CA2421871A1 (fr) 2000-09-30 2001-08-30 Element support deconnectable

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2000148620 DE10048620A1 (de) 2000-09-30 2000-09-30 Abschaltbares Abstützelement
DE10048620.7 2000-09-30
US23730000P 2000-10-02 2000-10-02
US60/237,300 2000-10-02

Publications (1)

Publication Number Publication Date
WO2002029213A1 true WO2002029213A1 (fr) 2002-04-11

Family

ID=26007231

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/009977 WO2002029213A1 (fr) 2000-09-30 2001-08-30 Element support deconnectable

Country Status (3)

Country Link
JP (1) JP2004522885A (fr)
AU (1) AU2001287705A1 (fr)
WO (1) WO2002029213A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004286028A (ja) * 2003-03-19 2004-10-14 Eaton Corp ２段弁リフトと弁の作動停止
EP1544422A1 (fr) * 2003-11-05 2005-06-22 EATON AUTOMOTIVE S.p.A. Système de désactivation de soupape et dispositif hydraulique de reglage de jeu verrouillable pour ça
WO2007080488A2 (fr) * 2006-01-10 2007-07-19 Eaton Corporation Systeme de commande de valve comprenant un bras de culbuteur de desactivation
DE102006047447A1 (de) * 2006-10-07 2008-04-10 Schaeffler Kg Anordnung eines Ventiltrieb-Abstützelementes in einer Brennkraftmaschine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008190392A (ja) * 2007-02-02 2008-08-21 Otics Corp 可変動弁機構

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59168208A (ja) * 1983-03-15 1984-09-21 Honda Motor Co Ltd 内燃機関用休止機能付弁作動装置
EP0608925A1 (fr) * 1993-01-28 1994-08-03 General Motors Corporation Poussoins de soupape compact
WO1994021899A1 (fr) * 1993-03-25 1994-09-29 Lotus Cars Limited Systeme de commande de soupape
DE4422340A1 (de) 1993-07-14 1995-01-19 Bayerische Motoren Werke Ag Abschaltvorrichtung für ein Brennkraftmaschinen-Hubventil
DE4442965A1 (de) * 1994-12-02 1996-06-05 Audi Ag Ventiltrieb mit mechanischer Verriegelung
US5655487A (en) * 1993-12-17 1997-08-12 Ina Walzlager Schaeffler Kg Switchable support element

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59168208A (ja) * 1983-03-15 1984-09-21 Honda Motor Co Ltd 内燃機関用休止機能付弁作動装置
EP0608925A1 (fr) * 1993-01-28 1994-08-03 General Motors Corporation Poussoins de soupape compact
WO1994021899A1 (fr) * 1993-03-25 1994-09-29 Lotus Cars Limited Systeme de commande de soupape
DE4422340A1 (de) 1993-07-14 1995-01-19 Bayerische Motoren Werke Ag Abschaltvorrichtung für ein Brennkraftmaschinen-Hubventil
US5655487A (en) * 1993-12-17 1997-08-12 Ina Walzlager Schaeffler Kg Switchable support element
DE4442965A1 (de) * 1994-12-02 1996-06-05 Audi Ag Ventiltrieb mit mechanischer Verriegelung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 022 (M - 354) 30 January 1985 (1985-01-30) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004286028A (ja) * 2003-03-19 2004-10-14 Eaton Corp ２段弁リフトと弁の作動停止
JP4541733B2 (ja) * 2003-03-19 2010-09-08 イートン コーポレーション ２段弁リフトと弁の作動停止
EP1544422A1 (fr) * 2003-11-05 2005-06-22 EATON AUTOMOTIVE S.p.A. Système de désactivation de soupape et dispositif hydraulique de reglage de jeu verrouillable pour ça
WO2007080488A2 (fr) * 2006-01-10 2007-07-19 Eaton Corporation Systeme de commande de valve comprenant un bras de culbuteur de desactivation
WO2007080488A3 (fr) * 2006-01-10 2007-09-27 Eaton Corp Systeme de commande de valve comprenant un bras de culbuteur de desactivation
DE102006047447A1 (de) * 2006-10-07 2008-04-10 Schaeffler Kg Anordnung eines Ventiltrieb-Abstützelementes in einer Brennkraftmaschine

Also Published As

Publication number Publication date
JP2004522885A (ja) 2004-07-29
AU2001287705A1 (en) 2002-04-15

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