EP1171692A1 - Dispositif reglable de commande de soupapes et procede de reglage d'un tel dispositif - Google Patents
Dispositif reglable de commande de soupapes et procede de reglage d'un tel dispositifInfo
- Publication number
- EP1171692A1 EP1171692A1 EP00920841A EP00920841A EP1171692A1 EP 1171692 A1 EP1171692 A1 EP 1171692A1 EP 00920841 A EP00920841 A EP 00920841A EP 00920841 A EP00920841 A EP 00920841A EP 1171692 A1 EP1171692 A1 EP 1171692A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuator
- adjustment device
- housing
- rod
- wheel
- 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
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
- 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
- F01L2303/00—Manufacturing of components used in valve 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
- F01L2303/00—Manufacturing of components used in valve arrangements
- F01L2303/01—Tools for producing, mounting or adjusting, e.g. some part of the distribution
Definitions
- the invention relates to control devices for valves moving linearly along an axis, comprising actuators in a number equal to that of the valves, each actuator having a pallet made of ferro-magnetic material fixed to a valve push rod and at least one return spring, one end of which rests against the rod and the other end of which rests against fixed anchoring means, adjustable in position relative to an actuator housing containing electromagnets for linear control of the pallet so as to fix a rest position of the pallet.
- Actuators of this type can have two opposing return springs (US patent 4,614,170 or patent application FR 98 12489) or a single spring working alternately in tension and compression (patent application FR 98 11670). They can have a single coil (patent applications FR 98 12489 and 99 04472) or two coils.
- the invention aims in particular to provide a valve control device whose adjustment means are compact and allow adjustment once the device is mounted on the cylinder head of an engine and in a very short time.
- the invention proposes for this purpose a device characterized in that the anchoring means comprise a toothed wheel rotating around the axis of the rod and bearing against the housing and a threaded cup supporting the spring, immobilized in rotation , and having a helical connection with the toothed wheel, the said spring now the toothed wheel pressing against the housing, and in that a passage is made between the actuators of two adjacent valves for a rotary adjustment tool intended to rotate the wheel.
- the adjustment tool comprises a toothed sector for engaging the toothed wheel.
- a sector or pinion meshing with the wheel is permanently mounted in the housing. It is designed to receive the tool. For this it can have an imprint or a polygonal hole of shape corresponding to that of the end of the tool.
- a pinion or sector can be provided for each wheel.
- the sectors or pinions of two adjacent actuators can be offset from one another in the direction transverse to the direction of alignment of the actuators to reduce the size.
- the adjustment means can thus be placed in the axial size of the single or higher spring and do not increase the axial size of the device. Adjustment can be made while the actuator is in place.
- the threaded cup is immobilized in rotation by a ring interposed between the spring and the cup, having lugs projecting in the housing and a keyway sliding with the cup.
- the invention also provides a method of adjusting a device of the kind defined above. According to this process:
- the tool is moved laterally after having inserted it to mesh its toothed sector on one wheel, then on the other.
- it is first engaged in one sector or pinion, then in the other.
- FIG. 1 is a view of the device in section along a plane passing through the axis of an actuator and orthogonal to the direction of a row of actuators;
- FIG. 2 is a sectional view of a fraction of the adjustment device, in section along a plane passing through the axis of an actuator;
- FIG. 3 is a perspective view showing the underside of an actuator of the device, incomplete;
- FIG. 4 is a bottom view of a set of four actuators, showing the engagement of the sectors on the wheels;
- FIG. 5 is a detail view from below, showing a wheel locking pawl.
- the device according to the invention is intended to be mounted on the cylinder head 12 of an engine. It comprises for example a line of eight actuators arranged side by side and each controlling a valve.
- the actuator shown in Figure 1 has a housing consisting of several parts 14, 16 and 18 stacked and assembled by means not shown. These parts are made of non-ferromagnetic material, for example a light alloy.
- the housing is fixed on the cylinder head 12.
- the actuator comprises a pallet 22 made of ferromagnetic material fixed on a rod 24 for driving the valve 25.
- a pallet 22 made of ferromagnetic material fixed on a rod 24 for driving the valve 25.
- several valves are mounted side by side and there is only a small width for each actuator in the direction perpendicular to the plane of the figure 1. This results in giving the palette a rectangular shape. The pallet cannot then rotate in the room
- the actuator can also be used with a single spring working in tension / compression and / or supplemented by an elastic damper ensuring the tightness when the valve is closed, as indicated in FR-A-2 783 631 (French patent No. 98 11 670), which makes it possible to form the valve stem and stem in one piece.
- One end of the spring is then fixed to the housing by the anchoring means, allowing its rotation, and the other end is fixed to the rod, provided with means intended to secure it in axial translation of the valve stem.
- the spring tends to hold the valve in a middle position between a closed position and a fully open position.
- a first electromagnet intended to cause the coming of the valve in the closed position, is placed in the part 14. It comprises a core of ferromagnetic material, advantageously laminated, and a coil.
- a second electromagnet intended to bring the valve into the fully open position, has a core ferromagnetic, also generally laminated, and a coil, placed in part 18.
- the cores have a generally rectangular shape.
- a single coil is provided.
- the adjustment means constitute anchoring or support means for the spring 28a. They include a toothed wheel 40 rotating around the axis of the rod and pressing against the housing. In the illustrated embodiment, the wheel turns on a tubular extension or chimney 33 of the part 18. The wheel 40 is extended by a threaded lower part on which is screwed a threaded cup 34 for supporting the spring 28a. The cup is immobilized in rotation relative to the housing. In the illustrated embodiment, a ring 36 made of a material with a low coefficient of friction is mounted on the threaded cup 34 by sliding keying means. Lugs of the ring 36, not visible in Figure 2, immobilize the ring in rotation relative to the housing.
- a washer 38 transmits the pressure of the spring 28a to the cup and from there to the ring.
- This washer can be replaced by a needle socket.
- the spring 28a thus maintains the toothed wheel in abutment against the housing.
- the mounting method can then be as follows.
- the threaded cup 34 is screwed onto the toothed wheel 40.
- the sub-assembly thus formed is slid over the chimney 33.
- the ring 36, the support washer 38, the spring 28a, its support plate 30 with the two half-moons are successively mounted.
- the threaded cup is locked in rotation.
- the actuator is mounted on the cylinder head fitted with the valve and the spring 28b. Once all the actuators are in place, the device is adjusted either on several actuators at the same time, or successively.
- a tool 42 is used which is inserted between two adjacent actuators in the space between two cylinders, then in a passage delimited by two facing recesses 44, of semi-circular section, formed in the part 18 on the two sides of the housing. (fig. 4).
- this tool ends in a toothed sector 46 intended to mesh with the toothed wheel.
- the tool is inserted between two actuators, then moved laterally. It is then turned until the moving equipment is brought into a set position.
- the actuator is provided with a sensor such as a Hall sensor of the kind described in French patent application 98 12940 (FR-A-2 784 712).
- an adjustment bench may comprise several tools inserted simultaneously into the device, for example five in number in the case of a device for controlling a line of valves of a sixteen-valve engine. In this case, illustrated in FIG. 4, the tools are brought first into the position indicated by solid lines. Four actuators are adjusted at the same time, using a tool control circuit operating in closed loop and timeshare, or successively without operator intervention. Then the tools are brought into the position shown in dashes and the other four actuators are adjusted.
- only one tool is provided and it is engaged manually successively in five passages.
- a sector or pinion meshing with the wheel is permanently mounted in the housing of each actuator and is designed to receive the tool.
- the sector or pinion has an imprint or a polygonal hole corresponding to that of the end of a suitable tool, a pinion or sector being provided for each toothed wheel.
- the sectors or pinions of two adjacent actuators are offset from each other in the transverse direction to the direction of alignment of the actuators to prevent them from interfering.
- the actuators of two adjacent valves of the same cylinder are merged into a single block (patent application FR 99 04 472) and in this case each passage is integrated in a block. To make each adjustment, the tool comes into contact with an intermediate pinion.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Mechanically-Actuated Valves (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9905206A FR2792679B1 (fr) | 1999-04-23 | 1999-04-23 | Dispositif reglable de commande de soupapes et procede de reglage d'un tel dispositif |
| FR9905206 | 1999-04-23 | ||
| PCT/FR2000/001021 WO2000065203A1 (fr) | 1999-04-23 | 2000-04-19 | Dispositif reglable de commande de soupapes et procede de reglage d'un tel dispositif |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1171692A1 true EP1171692A1 (fr) | 2002-01-16 |
| EP1171692B1 EP1171692B1 (fr) | 2006-12-13 |
Family
ID=9544815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00920841A Expired - Lifetime EP1171692B1 (fr) | 1999-04-23 | 2000-04-19 | Dispositif reglable de commande de soupapes et procede de reglage d'un tel dispositif |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6418892B1 (fr) |
| EP (1) | EP1171692B1 (fr) |
| JP (2) | JP2002543320A (fr) |
| KR (1) | KR100714388B1 (fr) |
| DE (1) | DE60032350T2 (fr) |
| ES (1) | ES2276680T3 (fr) |
| FR (1) | FR2792679B1 (fr) |
| WO (1) | WO2000065203A1 (fr) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2820520B1 (fr) | 2001-02-02 | 2003-05-16 | Sagem | Dispositif d'arret en rotation d'une roue dentee |
| FR2821655B1 (fr) | 2001-03-05 | 2003-12-05 | Sagem | Dispositif d'actionnement de soupape a attenuation de choc |
| FR2839187B1 (fr) * | 2002-04-26 | 2005-09-30 | Johnson Contr Automotive Elect | Procede de prereglage d'un actionneur electromagnetique |
| US7086636B2 (en) * | 2002-07-02 | 2006-08-08 | Borgwarner Inc. | Gaseous fluid metering valve |
| DE10248328A1 (de) * | 2002-10-17 | 2004-04-29 | Bayerische Motoren Werke Ag | Elektromagnetische Ventiltriebvorrichtung mit verdrehgesicherter Neutrallagenverstellschraube |
| US20050076866A1 (en) * | 2003-10-14 | 2005-04-14 | Hopper Mark L. | Electromechanical valve actuator |
| US7152558B2 (en) * | 2003-10-14 | 2006-12-26 | Visteon Global Technologies, Inc. | Electromechanical valve actuator assembly |
| US7089894B2 (en) | 2003-10-14 | 2006-08-15 | Visteon Global Technologies, Inc. | Electromechanical valve actuator assembly |
| FR2870563B1 (fr) * | 2004-05-19 | 2006-06-30 | Peugeot Citroen Automobiles Sa | Dispositif d'actionnement de soupapes |
| FR2870564B1 (fr) | 2004-05-19 | 2006-06-30 | Peugeot Citroen Automobiles Sa | Dispositif d'actionnement de soupapes |
| US7305942B2 (en) * | 2005-02-23 | 2007-12-11 | Visteon Global Technologies, Inc. | Electromechanical valve actuator |
| US7305943B2 (en) | 2005-02-23 | 2007-12-11 | Visteon Global Technologies, Inc. | Electromagnet assembly for electromechanical valve actuators |
| KR20070108948A (ko) | 2005-03-08 | 2007-11-13 | 보르그워너 인코퍼레이티드 | 대기 위치를 갖는 egr 밸브 |
| FR2907500B1 (fr) * | 2006-10-24 | 2009-01-23 | Valeo Sys Controle Moteur Sas | Ensemble d'une soupape de cylindre et d'un actionneur de rappel de la soupape |
| USD729927S1 (en) | 2013-01-21 | 2015-05-19 | Lomanco, Inc. | Intake vent |
| CN111963756B (zh) * | 2020-08-27 | 2022-05-27 | 宁波华成阀门有限公司 | 一种便于观察的高压阀门用阀杆防回退装置及方法 |
| CN111963755B (zh) * | 2020-08-27 | 2022-05-27 | 宁波华成阀门有限公司 | 一种高压阀门用阀杆防回退装置及方法 |
| CN112242767B (zh) * | 2020-09-25 | 2022-05-24 | 兰州万里航空机电有限责任公司 | 一种活门电作动器 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4883025A (en) * | 1988-02-08 | 1989-11-28 | Magnavox Government And Industrial Electronics Company | Potential-magnetic energy driven valve mechanism |
| FR2665926B1 (fr) * | 1990-08-17 | 1994-07-01 | Renault | Dispositif d'actionnement pour soupape notamment dans un moteur a combustion interne. |
| US5548263A (en) * | 1992-10-05 | 1996-08-20 | Aura Systems, Inc. | Electromagnetically actuated valve |
| KR0164488B1 (ko) * | 1994-08-29 | 1998-12-15 | 전성원 | 외부공기를 이용한 밸브리프트 조정장치 |
| JP3106890B2 (ja) * | 1995-01-11 | 2000-11-06 | トヨタ自動車株式会社 | 内燃機関の弁駆動装置 |
| US5558054A (en) * | 1995-06-07 | 1996-09-24 | Southwest Research Institute | Variable preload system for valve springs |
| JP3619292B2 (ja) * | 1995-08-25 | 2005-02-09 | 本田技研工業株式会社 | 内燃機関の動弁装置 |
| WO1998042958A1 (fr) * | 1997-03-24 | 1998-10-01 | Lsp Innovative Automotive Systems Gmbh | Dispositif de commande electromagnetique |
| DE19750228C1 (de) * | 1997-11-13 | 1998-12-03 | Daimler Benz Ag | Vorrichtung zum Betätigen eines Gaswechselventils mit einem elektromagnetischen Aktuator |
-
1999
- 1999-04-23 FR FR9905206A patent/FR2792679B1/fr not_active Expired - Fee Related
-
2000
- 2000-04-19 KR KR1020017013581A patent/KR100714388B1/ko not_active Expired - Fee Related
- 2000-04-19 JP JP2000613925A patent/JP2002543320A/ja active Pending
- 2000-04-19 ES ES00920841T patent/ES2276680T3/es not_active Expired - Lifetime
- 2000-04-19 EP EP00920841A patent/EP1171692B1/fr not_active Expired - Lifetime
- 2000-04-19 US US09/959,328 patent/US6418892B1/en not_active Expired - Lifetime
- 2000-04-19 DE DE60032350T patent/DE60032350T2/de not_active Expired - Lifetime
- 2000-04-19 WO PCT/FR2000/001021 patent/WO2000065203A1/fr not_active Ceased
-
2010
- 2010-03-15 JP JP2010057461A patent/JP5165016B2/ja not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0065203A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000065203A1 (fr) | 2000-11-02 |
| FR2792679B1 (fr) | 2001-07-27 |
| DE60032350T2 (de) | 2007-07-12 |
| DE60032350D1 (de) | 2007-01-25 |
| EP1171692B1 (fr) | 2006-12-13 |
| ES2276680T3 (es) | 2007-07-01 |
| FR2792679A1 (fr) | 2000-10-27 |
| US6418892B1 (en) | 2002-07-16 |
| JP2010164058A (ja) | 2010-07-29 |
| JP5165016B2 (ja) | 2013-03-21 |
| KR100714388B1 (ko) | 2007-05-07 |
| JP2002543320A (ja) | 2002-12-17 |
| KR20020008161A (ko) | 2002-01-29 |
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