EP1567825A1 - Vorrichtung zum messen des hubweges von hubventilen - Google Patents
Vorrichtung zum messen des hubweges von hubventilenInfo
- Publication number
- EP1567825A1 EP1567825A1 EP03810389A EP03810389A EP1567825A1 EP 1567825 A1 EP1567825 A1 EP 1567825A1 EP 03810389 A EP03810389 A EP 03810389A EP 03810389 A EP03810389 A EP 03810389A EP 1567825 A1 EP1567825 A1 EP 1567825A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeve
- groove
- lift
- shaft
- measuring
- 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
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 3
- 238000006073 displacement reaction Methods 0.000 claims abstract 2
- 230000001939 inductive effect Effects 0.000 claims abstract 2
- 239000002184 metal Substances 0.000 claims abstract 2
- 239000000696 magnetic material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
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
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/08—Valves guides; Sealing of valve stem, e.g. sealing by lubricant
-
- 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
- F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
- F01L1/462—Valve return spring arrangements
-
- 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
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
-
- 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
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- 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
- F01L2301/00—Using particular materials
-
- 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
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/04—Sensors
- F01L2820/045—Valve lift
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8158—With indicator, register, recorder, alarm or inspection means
- Y10T137/8225—Position or extent of motion indicator
- Y10T137/8242—Electrical
Definitions
- the invention relates to a device of the type mentioned in the preamble of patent claim 1.
- Such a device is known from DE 37 03 867 A1.
- a sleeve preferably made of magnetic material, is glued into the groove in the valve stem to measure the valve stroke movement.
- the groove and sleeve are matched to one another so that the sleeve sits flush in the valve stem, i.e. does not protrude radially. At extremely high loads, the valve stem may vibrate.
- the object of the invention is to develop a device of the type mentioned at the outset in such a way that it enables reliable information about the actual axial movement of the valve even under extreme loads.
- the solution has the advantage that mechanical deformations of the sleeve by axially adjacent parts of the valve stem are largely avoided. Magnetostriction effects, such as those that can occur in a sleeve made of magnetic material, are therefore largely absent, as are impairments in the eddy current properties, such as those that occur in a non-magnetic, metallic sleeve that is exposed to an alternating field.
- Claims 2 and 3 describe advantageous developments of the invention, by means of which any adverse effects on the magnetic or electrical properties of the sleeve that may still occur under very extreme conditions are completely avoided.
- claim 4 describes a possibility to reduce the axial play between the sleeve and the shaft and to optimize the stability of the shaft by locally changing the rectangular geometry in the potential contact zone.
- the invention is illustrated in more detail below using an exemplary embodiment.
- a section of a cylinder head 1 of a reciprocating piston internal combustion engine with a gas guide channel 2 and a lift valve 3 is shown.
- the lift valve 3 is shown in sections with its valve stem 3 '. It is controlled in a known manner, which is not of interest here. For this purpose, it is equipped with valve springs (also not shown) and a valve spring plate.
- the valve stem 3 ' has a groove 4 in which a sleeve 5 made of magnetic material is fastened
- the sleeve 5 runs in a fixed coil 6, which surrounds the sleeve 5 during the entire stroke movement and thereby induces an alternating voltage, from which the position of the sleeve 5 and thus of the lift valve 3 is determined in a known manner.
- the sleeve 5 is fastened within the groove 4 with axial play.
- the game is formed axially on both sides.
- the game is dimensioned such that the sleeve 5 does not abut the axially adjacent parts of the valve stem 3 'at all operating temperatures and operating stresses.
- a special embodiment of the invention is not shown, in which the sleeve and / or the shaft is / are drawn in on its outer circumference in the region adjacent to the shaft or the sleeve.
- the axial play can be reduced compared to the illustrated embodiment. It is common to all of the embodiments that the sleeve 5 is not mechanically deformed by the axially adjacent parts of the valve stem 3 ', with the advantage of position information that is undisturbed and allows an exact statement about the position of the lift valve 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10251664 | 2002-11-06 | ||
| DE2002151664 DE10251664A1 (de) | 2002-11-06 | 2002-11-06 | Vorrichtung zum Messen des Hubweges von Hubventilen |
| PCT/EP2003/008740 WO2004042318A1 (de) | 2002-11-06 | 2003-08-07 | Vorrichtung zum messen des hubweges von hubventilen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1567825A1 true EP1567825A1 (de) | 2005-08-31 |
| EP1567825B1 EP1567825B1 (de) | 2007-07-18 |
Family
ID=32115296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03810389A Expired - Lifetime EP1567825B1 (de) | 2002-11-06 | 2003-08-07 | Vorrichtung zum messen des hubweges von hubventilen |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7121300B2 (de) |
| EP (1) | EP1567825B1 (de) |
| JP (1) | JP2006504959A (de) |
| DE (2) | DE10251664A1 (de) |
| WO (1) | WO2004042318A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8499746B2 (en) | 2007-07-12 | 2013-08-06 | Imagineering, Inc. | Internal combustion engine using electromagnetic wave radiation to activate burnt gas |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1925904B1 (de) | 2006-11-21 | 2009-05-06 | C.R.F. Società Consortile per Azioni | Verfahren und Vorrichtung zur Bestimmung der relativen Position zweier zueinander mobiler Elemente |
| DE102009036061B3 (de) * | 2009-08-04 | 2011-02-10 | Mtu Friedrichshafen Gmbh | Verfahren zur Steuerung und Regelung einer Brennkraftmaschine |
| US9068815B1 (en) * | 2011-11-09 | 2015-06-30 | Sturman Industries, Inc. | Position sensors and methods |
| SE536617C2 (sv) | 2012-06-28 | 2014-04-01 | Cargine Engineering Ab | Metod och positioneringssensorsammansättning för fastställning av en inbördes position mellan ett första objekt och ettandra objekt |
| SE537654C2 (sv) * | 2013-12-20 | 2015-09-22 | Freevalve Ab | Metod och positionssensorsammansättning för fastställande aven inbördes position mellan ett första objekt och ett andraobjekt |
| FR3069040B1 (fr) * | 2017-07-17 | 2020-09-11 | Renault Sas | Agencement pour la mesure de temperature de soupape |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3703867A1 (de) * | 1987-02-07 | 1988-08-18 | Bayerische Motoren Werke Ag | Vorrichtung zum messen des hubweges von hubventilen |
| US5144977A (en) * | 1991-06-20 | 1992-09-08 | Dresser Industries, Inc. | Fluid valve with actuation sensor |
| DE4238861C2 (de) * | 1992-01-30 | 1995-08-31 | Daimler Benz Ag | Vorrichtung zur Bestimmung der Position eines axial beweglichen Körpers |
| DE4438059C2 (de) * | 1993-11-05 | 2002-06-06 | Volkswagen Ag | Einrichtung zur meßtechnischen Erfassung von Ventil-Hubbewegungen |
| DE19841660C2 (de) * | 1998-09-11 | 2003-07-10 | Audi Ag | Anordnung zum berührungslosen Messen von Ventilbewegungen bei Brennkraftmaschinen |
| FR2792765B1 (fr) * | 1999-04-23 | 2001-07-27 | Sagem | Actionneur lineaire electromagnetique a capteur de position |
-
2002
- 2002-11-06 DE DE2002151664 patent/DE10251664A1/de not_active Withdrawn
-
2003
- 2003-08-07 WO PCT/EP2003/008740 patent/WO2004042318A1/de not_active Ceased
- 2003-08-07 JP JP2004548711A patent/JP2006504959A/ja active Pending
- 2003-08-07 EP EP03810389A patent/EP1567825B1/de not_active Expired - Lifetime
- 2003-08-07 DE DE50307731T patent/DE50307731D1/de not_active Expired - Lifetime
-
2005
- 2005-05-06 US US11/123,116 patent/US7121300B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004042318A1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8499746B2 (en) | 2007-07-12 | 2013-08-06 | Imagineering, Inc. | Internal combustion engine using electromagnetic wave radiation to activate burnt gas |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006504959A (ja) | 2006-02-09 |
| EP1567825B1 (de) | 2007-07-18 |
| US7121300B2 (en) | 2006-10-17 |
| US20050241699A1 (en) | 2005-11-03 |
| WO2004042318A1 (de) | 2004-05-21 |
| DE50307731D1 (de) | 2007-08-30 |
| DE10251664A1 (de) | 2004-05-19 |
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