WO2001024288A2 - Verstelleinrichtung zum ansteuern einer regel- und/oder absperrvorrichtung - Google Patents
Verstelleinrichtung zum ansteuern einer regel- und/oder absperrvorrichtung Download PDFInfo
- Publication number
- WO2001024288A2 WO2001024288A2 PCT/DE2000/003225 DE0003225W WO0124288A2 WO 2001024288 A2 WO2001024288 A2 WO 2001024288A2 DE 0003225 W DE0003225 W DE 0003225W WO 0124288 A2 WO0124288 A2 WO 0124288A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- adjusting device
- connecting element
- piezoelectric
- section
- actuator
- Prior art date
Links
- 230000001276 controlling effect Effects 0.000 title abstract description 8
- 230000001105 regulatory effect Effects 0.000 title abstract description 4
- 239000000446 fuel Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 101150037084 IMMT gene Proteins 0.000 claims 1
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011149 active material Substances 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/004—Actuating devices; Operating means; Releasing devices actuated by piezoelectric means
- F16K31/007—Piezoelectric stacks
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
Definitions
- the invention relates to an adjusting device
- a first and a second region made of piezoelectrically active material are provided in the drive or adjusting element, these two regions being connected to one another via a third region.
- the third area is made of piezoelectrically passive material.
- EP 0 477 400 AI discloses an arrangement for an adaptive, mechanical tolerance compensation acting in the adjusting direction for a displacement transformer of a piezoelectric actuator, in which the deflection of the piezoelectric actuator is transmitted via a hydraulic chamber.
- the hydraulic chamber works as a so-called hydraulic ratio.
- the hydraulic chamber closes between two pistons delimiting it, of which one piston is designed with a smaller diameter and is connected to a valve member to be controlled and the other piston is designed with a larger diameter and with the piezoelectric one
- Actuator is connected, a common compensation volume.
- the hydraulic chamber is clamped between the two pistons in such a way that the actuating piston of the valve member, which is held in its rest position by means of one or more springs relative to a predetermined position, one by the ratio of the piston diameter increases stroke when the larger piston is moved by the piezoelectric actuator by a certain distance.
- the valve member, the pistons and the piezoelectric actuator lie one behind the other on a common axis.
- the compensation volume of the hydraulic chamber can be used to compensate for tolerances due to temperature gradients in the component or different thermal expansion coefficients of the materials used, as well as any setting effects, without the position of the actuating element to be controlled thereby changing.
- a compensation of changes in length of the piezoelectric actuator by the hydraulic chamber arranged between two pistons requires a complex construction and is problematic with regard to the leakage losses that occur and the refilling of the hydraulic chamber.
- the invention has for its object to provide an adjusting device for controlling a control and / or shut-off device with a piezoelectric unit, which is designed with a tolerance compensation in a structurally simple manner and requires a small space and as few components as possible.
- the adjusting device according to the invention for controlling a control and / or shut-off device with the characterizing features of claim 1 has the advantage that due to the piezoelectric actuators arranged one behind the other, a slim design is realized.
- the adjusting device by energizing one piezoelectric actuator in each case, the resulting longitudinal expansions are converted into tilting movements by means of the lever mechanism in such a way that the actuator of the control and / or shut-off device to be controlled executes corresponding adjusting movements.
- the adjusting device according to the invention is provided in accordance with a preferred embodiment of the invention for controlling a valve for controlling liquids.
- the valve can be a fuel injection valve, in particular a common rail injector, for internal combustion engines of motor vehicles.
- a fuel injection valve in particular a common rail injector
- other areas of application of the adjusting device according to the invention are also possible, in which high-frequency controls are required. Further advantages and advantageous configurations of the subject matter of the invention can be gathered from the description, the drawing and the patent claims.
- FIG. 1 shows a schematic illustration of a first exemplary embodiment of the invention, in which a lever mechanism has an L-shaped and T-shaped connecting element,
- Figure 2 is a schematic representation of a second embodiment in which the lever mechanism has two L-shaped connecting elements
- Figure 3 is a schematic sectional view of Figure 2 along the section line A-A.
- FIG. 1 shows, in a highly simplified manner, an adjusting device 1 for actuating an actuating member 2 of a control and / or shut-off device, which in the two embodiments described is in each case a common rail fuel injection valve (not shown in any more detail).
- the adjusting device 1 is an elongated one by means of energization Piezoelectric unit and a lever mechanism 3 comprises.
- the piezoelectric unit has two alternately energizable piezoelectric actuators 4, 5, the elongations of which can be implemented in tilting movements by means of the lever mechanism 3, a section 16 of the lever mechanism 3 which is operatively connected to the actuator 2 being oriented essentially transversely to the direction of movement of the actuator 2.
- the two piezoelectric actuators 4, 5 are arranged essentially one behind the other in terms of their longitudinal extent.
- the piezoelectric unit can of course also have more than two piezoelectric actuators 4, 5 arranged one behind the other.
- the lever mechanism 3 comprises two connecting elements 6, 7 serving as lever arms, the first connecting element 6 being L-shaped and the second connecting element 7 being T-shaped.
- the number of connecting elements 6, 7 of the lever mechanism 3 must be adapted accordingly.
- the lever mechanism 3 is operatively connected to the piezoelectric actuators 4, 5 by transverse sections 8, 9 of the L-shaped and T-shaped connecting elements 6, 7 arranged horizontally to the longitudinal extension of the piezoelectric actuators 4, 5 with head regions 10, 11 of the piezoelectric elements - Trical actuators 4, 5 are brought into contact.
- the cross sections 8, 9 of the two connecting elements 6, 7 are each pressed by means of a pressure element designed as a spring 12, 13 against the head sections 10, 11 of the piezoelectric actuators 4, 5, in order in particular to bring about a required pretensioning of the piezoelectric actuators 4, 5.
- the piezoelectric actuators 4, 5 are constructed from a plurality of thin layers in a known “multilayer” design. So that these layers do not separate from one another when the piezoelectric actuators 4, 5 are energized, they must be prestressed be, whereby the force to be applied can be approximately 1000 N.
- a longitudinal section 14 of the first connecting element 6 running parallel to the longitudinal extent of the piezoelectric actuators 4, 5 is connected in an articulated manner to the transverse section 9 of the second connecting element 7.
- the free end of the longitudinal section 14 of the first connecting element 6 has a recess 15, into which an essentially spherical head-shaped end of the transverse section 9 of the second connecting element 7 is received.
- the section 16 of the lever mechanism 3 that is operatively connected to the actuator 2 is a longitudinal section
- the actuator 2 has a hole-shaped Recess 18, which receives a free end of the longitudinal section 17 of the T-shaped connecting element 7 arranged transversely to the direction of movement of the actuator 2.
- the adjusting device 1 shown in FIG. 1 operates in the manner described below.
- the end of the transverse section 9 of the connecting element 7, which is connected in an articulated manner to the longitudinal section 14 of the connecting element 6, is likewise moved upward, the end of the transverse section 9 arranged between the spring 13 and the head region 11 of the piezoelectric actuator 5 not being moved.
- the connecting element 7 is moved about a pivot point 19 marked in FIG. 1, as is also indicated by the angle 20 shown.
- the longitudinal section 17 that is operatively connected to the actuator 2 thus executes a tilting movement, as a result of which the actuator 2 moves to the right and the control and / or shut-off device is activated accordingly.
- the head portion 11 By energizing the lower piezoelectric actuator 5, the head portion 11 is moved upward, so that against the spring force of the spring 13, that end of the cross section 9 of the connecting element 7 which is in contact with the head region 11, is also moved upwards.
- the longitudinal section 17 which is operatively connected to the actuator 2 thus executes a tilting movement, as a result of which the actuator 2 moves to the left and the control and / or shut-off device is controlled accordingly.
- the identically designed piezoelectric actuators 4, 5, which are prestressed with the same force, are both stretched or shrunk evenly when the length changes due to temperature, so that the longitudinal section 17 of the connecting element 7 does not perform a tilting movement, but only, as indicated in FIG. 1 with a broken line is moved down.
- a second exemplary embodiment of the adjusting device 1 is shown, in which:
- the adjusting device 1 shown here differs in that the
- Lever mechanism 3 has two L-shaped connecting elements 6, 7 ".
- the connecting elements can also have other structural configurations, but it has been shown that in the configuration according to the invention the entire adjusting device 1 is made even narrower in terms of its installation width.
- Adjusting device 1 is identical to that of the first exemplary embodiment according to FIG. 1.
- FIG. 3 shows a detail of the joint-like connection between the two L-shaped connecting elements 6, 7 "of the lever mechanism 3 according to FIG. 2. It can be seen that the free end of the longitudinal section 14 of the connecting element 6 has an undercut groove 23 which essentially forms the end of the transverse section 9 of the cross section 9 which is designed as a hammer head
- the undercut 24 of the groove 23 holds the connecting element 7 transversely to the direction of movement of the actuator 2 in the groove 23, the longitudinal section 17 of the connecting element 7 emerging from the groove 23 and being operatively connected to the actuator 2. manure stands.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Mechanically-Actuated Valves (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00975771A EP1222697A2 (de) | 1999-09-30 | 2000-09-16 | Verstelleinrichtung zum ansteuern einer regel- und/oder absperrvorrichtung |
JP2001527377A JP2003510522A (ja) | 1999-09-30 | 2000-09-16 | 調整及び/又は遮断装置を制御するための調節装置 |
KR1020027003953A KR20020032625A (ko) | 1999-09-30 | 2000-09-16 | 조절 및/또는 차단 장치를 제어하기 위한 조정 장치 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19946839A DE19946839B4 (de) | 1999-09-30 | 1999-09-30 | Verstelleinrichtung zum Ansteuern einer Regel- und/oder Absperrvorrichtung |
DE19946839.7 | 1999-09-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001024288A2 true WO2001024288A2 (de) | 2001-04-05 |
WO2001024288A3 WO2001024288A3 (de) | 2001-12-27 |
Family
ID=7923820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/003225 WO2001024288A2 (de) | 1999-09-30 | 2000-09-16 | Verstelleinrichtung zum ansteuern einer regel- und/oder absperrvorrichtung |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1222697A2 (de) |
JP (1) | JP2003510522A (de) |
KR (1) | KR20020032625A (de) |
DE (1) | DE19946839B4 (de) |
WO (1) | WO2001024288A2 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003001049A1 (de) * | 2001-06-20 | 2003-01-03 | Mtu Friedrichshafen Gmbh | Injektor mit piezo-aktuator |
US6767933B2 (en) | 1999-10-01 | 2004-07-27 | Ballina Pty Ltd | Radiation polymerizable compositions |
WO2004076848A1 (de) * | 2003-02-27 | 2004-09-10 | Siemens Aktiengesellschaft | Ventil mit einem hebel, hebel und verfahren zur herstellung eines hebels |
WO2012025197A1 (de) * | 2010-08-24 | 2012-03-01 | Festo Ag & Co. Kg | Piezoventil |
GB2498398A (en) * | 2012-01-16 | 2013-07-17 | Spirax Sarco Ltd | Linear Piezo-electric actuator for a valve |
EP2256388A3 (de) * | 2009-05-20 | 2013-11-13 | Bürkert Werke GmbH | Antriebseinrichtung mit einem Piezostapelaktor |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10140529A1 (de) * | 2001-08-17 | 2003-03-06 | Bosch Gmbh Robert | Piezoelektrisches Aktormodul |
DE20116515U1 (de) | 2001-10-09 | 2001-12-13 | FESTO AG & Co., 73734 Esslingen | Aktor und damit ausgestattetes Ventil |
DE102005038426A1 (de) * | 2005-08-16 | 2007-02-22 | Wilo Ag | Ventil mit Piezoelement |
DE102008043085A1 (de) | 2008-10-22 | 2010-04-29 | Robert Bosch Gmbh | Kraftstoffinjektor mit druckausgeglichener Bewegungsübertragung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0574945A1 (de) * | 1992-06-19 | 1993-12-22 | MARCO SYSTEMANALYSE UND ENTWICKLUNG GmbH | Vorrichtung zur Betätigung eines Ventilelementes |
DE19521478C1 (de) * | 1995-06-13 | 1996-09-12 | Itw Dynatec Gmbh Klebetechnik | Auftragskopf zur dosierten Abgabe von strömenden Medien |
EP0869278A1 (de) * | 1997-04-04 | 1998-10-07 | Siemens Aktiengesellschaft | Einspritzventil mit Mitteln zur Kompensation der thermischen Längenänderung eines Piezoaktors |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE192263T1 (de) * | 1990-09-25 | 2000-05-15 | Siemens Ag | Anordnung für einen in hubrichtung wirkenden adaptiven, mechanischen toleranzausgleich für den wegtransformator eines piezoelektrischen aktors |
DE19613158A1 (de) * | 1996-04-02 | 1997-10-09 | Daetwyler Ag | Hochdynamischer piezoelektrischer Antrieb |
DE19646511C1 (de) * | 1996-11-12 | 1998-05-14 | Marco Systemanalyse Entw | Piezoaktuatorisches Antriebs- oder Verstellelement |
-
1999
- 1999-09-30 DE DE19946839A patent/DE19946839B4/de not_active Expired - Fee Related
-
2000
- 2000-09-16 KR KR1020027003953A patent/KR20020032625A/ko not_active Application Discontinuation
- 2000-09-16 WO PCT/DE2000/003225 patent/WO2001024288A2/de not_active Application Discontinuation
- 2000-09-16 EP EP00975771A patent/EP1222697A2/de not_active Withdrawn
- 2000-09-16 JP JP2001527377A patent/JP2003510522A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0574945A1 (de) * | 1992-06-19 | 1993-12-22 | MARCO SYSTEMANALYSE UND ENTWICKLUNG GmbH | Vorrichtung zur Betätigung eines Ventilelementes |
DE19521478C1 (de) * | 1995-06-13 | 1996-09-12 | Itw Dynatec Gmbh Klebetechnik | Auftragskopf zur dosierten Abgabe von strömenden Medien |
EP0869278A1 (de) * | 1997-04-04 | 1998-10-07 | Siemens Aktiengesellschaft | Einspritzventil mit Mitteln zur Kompensation der thermischen Längenänderung eines Piezoaktors |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6767933B2 (en) | 1999-10-01 | 2004-07-27 | Ballina Pty Ltd | Radiation polymerizable compositions |
WO2003001049A1 (de) * | 2001-06-20 | 2003-01-03 | Mtu Friedrichshafen Gmbh | Injektor mit piezo-aktuator |
WO2004076848A1 (de) * | 2003-02-27 | 2004-09-10 | Siemens Aktiengesellschaft | Ventil mit einem hebel, hebel und verfahren zur herstellung eines hebels |
EP2256388A3 (de) * | 2009-05-20 | 2013-11-13 | Bürkert Werke GmbH | Antriebseinrichtung mit einem Piezostapelaktor |
WO2012025197A1 (de) * | 2010-08-24 | 2012-03-01 | Festo Ag & Co. Kg | Piezoventil |
GB2498398A (en) * | 2012-01-16 | 2013-07-17 | Spirax Sarco Ltd | Linear Piezo-electric actuator for a valve |
GB2498398B (en) * | 2012-01-16 | 2015-09-16 | Spirax Sarco Ltd | Linear actuator comprising a plurality of linear piezoelectric motors |
Also Published As
Publication number | Publication date |
---|---|
JP2003510522A (ja) | 2003-03-18 |
KR20020032625A (ko) | 2002-05-03 |
EP1222697A2 (de) | 2002-07-17 |
DE19946839A1 (de) | 2001-05-17 |
WO2001024288A3 (de) | 2001-12-27 |
DE19946839B4 (de) | 2006-07-27 |
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