WO2002029213A1 - Disconnectable support element - Google Patents
Disconnectable support element Download PDFInfo
- 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
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.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002532768A JP2004522885A (en) | 2000-09-30 | 2001-08-30 | Removable support member |
AU2001287705A AU2001287705A1 (en) | 2000-09-30 | 2001-08-30 | Disconnectable support element |
CA002421871A CA2421871A1 (en) | 2000-09-30 | 2001-08-30 | Disconnectable support element |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10048620.7 | 2000-09-30 | ||
DE2000148620 DE10048620A1 (en) | 2000-09-30 | 2000-09-30 | Switchable support element for valve drive of internal combustion engine has bore for slider formed as blind bore in inner element with axial line intersecting further bore of inner element |
US23730000P | 2000-10-02 | 2000-10-02 | |
US60/237,300 | 2000-10-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002029213A1 true WO2002029213A1 (en) | 2002-04-11 |
Family
ID=26007231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/009977 WO2002029213A1 (en) | 2000-09-30 | 2001-08-30 | Disconnectable support element |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2004522885A (en) |
AU (1) | AU2001287705A1 (en) |
WO (1) | WO2002029213A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004286028A (en) * | 2003-03-19 | 2004-10-14 | Eaton Corp | Dual valve lift and valve deactivation |
EP1544422A1 (en) * | 2003-11-05 | 2005-06-22 | EATON AUTOMOTIVE S.p.A. | Valve deactivation system and latchable hydraulic lash adjuster therefore |
WO2007080488A2 (en) * | 2006-01-10 | 2007-07-19 | Eaton Corporation | Valve control system including deactivating rocker arm |
DE102006047447A1 (en) * | 2006-10-07 | 2008-04-10 | Schaeffler Kg | Rocker arm support arrangement for use in intake/exhaust valve drive for internal combustion (IC) engine, has snap ring, which serves as anti-twist plate, fitted around annular groove around outer casing of housing of rocker arm support |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008190392A (en) * | 2007-02-02 | 2008-08-21 | Otics Corp | Variable valve train |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59168208A (en) * | 1983-03-15 | 1984-09-21 | Honda Motor Co Ltd | Valve driving mechanism for internal-combustion engine having function to render part of mechanism inoperative |
EP0608925A1 (en) * | 1993-01-28 | 1994-08-03 | General Motors Corporation | Compact valve-lifters |
WO1994021899A1 (en) * | 1993-03-25 | 1994-09-29 | Lotus Cars Limited | Valve control means |
DE4422340A1 (en) | 1993-07-14 | 1995-01-19 | Bayerische Motoren Werke Ag | Shut-off device for an internal combustion engine lifting valve |
DE4442965A1 (en) * | 1994-12-02 | 1996-06-05 | Audi Ag | Switchable valve for internal combustion engine |
US5655487A (en) * | 1993-12-17 | 1997-08-12 | Ina Walzlager Schaeffler Kg | Switchable support element |
-
2001
- 2001-08-30 AU AU2001287705A patent/AU2001287705A1/en not_active Abandoned
- 2001-08-30 JP JP2002532768A patent/JP2004522885A/en not_active Withdrawn
- 2001-08-30 WO PCT/EP2001/009977 patent/WO2002029213A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59168208A (en) * | 1983-03-15 | 1984-09-21 | Honda Motor Co Ltd | Valve driving mechanism for internal-combustion engine having function to render part of mechanism inoperative |
EP0608925A1 (en) * | 1993-01-28 | 1994-08-03 | General Motors Corporation | Compact valve-lifters |
WO1994021899A1 (en) * | 1993-03-25 | 1994-09-29 | Lotus Cars Limited | Valve control means |
DE4422340A1 (en) | 1993-07-14 | 1995-01-19 | Bayerische Motoren Werke Ag | Shut-off device for an internal combustion engine lifting valve |
US5655487A (en) * | 1993-12-17 | 1997-08-12 | Ina Walzlager Schaeffler Kg | Switchable support element |
DE4442965A1 (en) * | 1994-12-02 | 1996-06-05 | Audi Ag | Switchable valve for internal combustion engine |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 009, no. 022 (M - 354) 30 January 1985 (1985-01-30) * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004286028A (en) * | 2003-03-19 | 2004-10-14 | Eaton Corp | Dual valve lift and valve deactivation |
JP4541733B2 (en) * | 2003-03-19 | 2010-09-08 | イートン コーポレーション | 2-stage valve lift and valve deactivation |
EP1544422A1 (en) * | 2003-11-05 | 2005-06-22 | EATON AUTOMOTIVE S.p.A. | Valve deactivation system and latchable hydraulic lash adjuster therefore |
WO2007080488A2 (en) * | 2006-01-10 | 2007-07-19 | Eaton Corporation | Valve control system including deactivating rocker arm |
WO2007080488A3 (en) * | 2006-01-10 | 2007-09-27 | Eaton Corp | Valve control system including deactivating rocker arm |
DE102006047447A1 (en) * | 2006-10-07 | 2008-04-10 | Schaeffler Kg | Rocker arm support arrangement for use in intake/exhaust valve drive for internal combustion (IC) engine, has snap ring, which serves as anti-twist plate, fitted around annular groove around outer casing of housing of rocker arm support |
Also Published As
Publication number | Publication date |
---|---|
AU2001287705A1 (en) | 2002-04-15 |
JP2004522885A (en) | 2004-07-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4499784B4 (en) | supporting | |
WO1994025741A1 (en) | Valve tappet | |
DE19650987A1 (en) | Braking system for an internal combustion engine | |
DE102008029885A1 (en) | Valve train with overload devices | |
DE19908286B4 (en) | Variable valve control for internal combustion engines | |
DE3635110A1 (en) | VALVE CONTROL DEVICE FOR AN INTERNAL COMBUSTION ENGINE | |
EP2501905B1 (en) | Switchable pressure supply device | |
EP1881165A2 (en) | Switchable valve operating mechanism for a combustion engine | |
EP1881166A1 (en) | Switchable valve operating mechanism for a combustion engine | |
DE3503312A1 (en) | HYDRAULIC GAME REALIZATION | |
DE3939002A1 (en) | HYDRAULIC VALVE CONTROL DEVICE FOR A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE | |
WO1998028522A1 (en) | Tappet for a valve mechanism of an internal combustion engine | |
WO2002029213A1 (en) | Disconnectable support element | |
DE10048620A1 (en) | Switchable support element for valve drive of internal combustion engine has bore for slider formed as blind bore in inner element with axial line intersecting further bore of inner element | |
DE102008058023A1 (en) | Valve operating system for a variable displacement engine | |
DE102008059192A1 (en) | Switchable hydraulic lash adjuster with spherical locking pins | |
AT521606B1 (en) | Hydraulic valve mechanism for adjustable connecting rod | |
DE60310743T2 (en) | DEVICE FOR VALVE SHUT-OFF OF AN INTERNAL COMBUSTION ENGINE | |
DE102006053703A1 (en) | Valve i.e. gas exchange valve, mechanism for use in internal combustion engine of motor vehicle, has control shaft with control contour rotated with cam shaft and actuating control valve, which controls oil flow | |
DE102013209859A1 (en) | Central valve with an electromagnet for controlling the central valve | |
DE19956159A1 (en) | Valve drive for IC engines has gas exchange valve switching elements and tolerance compensation element located separate from each other | |
DE10205888B4 (en) | Hydraulic valve actuator | |
EP0915235A2 (en) | Hydraulic actuating system for an internal combustion engine valve | |
DE102008005768A1 (en) | Supporting element for valve impulse lever, such as tilting or rocker lever, is formed as hydraulic clearance compensation element for valve gear of internal-combustion engine | |
DE102022117873B3 (en) | Valve arrangement for a valve train of an internal combustion engine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2001967302 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2421871 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2002532768 Country of ref document: JP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2001967302 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
122 | Ep: pct application non-entry in european phase |