EP3275003A1 - Actionneur etanche de vanne haute pression - Google Patents
Actionneur etanche de vanne haute pressionInfo
- Publication number
- EP3275003A1 EP3275003A1 EP16714798.2A EP16714798A EP3275003A1 EP 3275003 A1 EP3275003 A1 EP 3275003A1 EP 16714798 A EP16714798 A EP 16714798A EP 3275003 A1 EP3275003 A1 EP 3275003A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuator
- coil
- valve
- cylindrical
- assembly
- 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.)
- Withdrawn
Links
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 6
- 230000000295 complement effect Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000007373 indentation Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 239000011499 joint compound Substances 0.000 claims 1
- 239000002923 metal particle Substances 0.000 description 2
- 206010001488 Aggression Diseases 0.000 description 1
- 230000016571 aggressive behavior Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/005—Pressure relief valves
- F02M63/0052—Pressure relief valves with means for adjusting the opening pressure, e.g. electrically controlled
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/029—Electromagnetically actuated valves
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/128—Encapsulating, encasing or sealing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F2007/062—Details of terminals or connectors for electromagnets
Definitions
- the present invention relates to a high pressure valve
- the invention is particularly intended to be arranged at the end of the common rail of a fuel injection system.
- the invention is particularly relative to the electromagnetic actuator of the valve.
- the actuator is an overmoulded assembly incorporating a coil and a connector, said overmoulded assembly being inserted into a cylindrical actuator body. It appeared that this arrangement met standards
- the present invention aims to remedy the disadvantages mentioned above by proposing a simple and economical solution.
- the invention provides an electromagnetic actuator of a pressure regulating valve, the actuator comprising an overmolded coil-connector assembly inserted into an actuator body in the form of a cylindrical cup.
- the actuator comprises a seal arranged between the overmoulded assembly and the actuator body so that the actuator is advantageously perfectly sealed.
- the overmoulded assembly comprises a cylindrical coil portion for insertion into the actuator body and a connector portion extending laterally from the coil portion and the cylindrical cup shaped actuator body a cylindrical peripheral wall extending axially from a bottom cross wall of the cup to an upper edge.
- the cylindrical wall is further provided with a lateral notch so that said upper edge follows a profile
- the coil portion is inserted into said peripheral wall and the connector portion is arranged in the notch and the overmoulded assembly is provided with a protruding rim along the three-dimensional profile of said upper edge, the seal being arranged between said projecting rim and said upper edge of the cylindrical wall.
- the coil portion of the overmoulded assembly comprises an annular electrical coil whose central cylindrical space is adapted to
- the connector portion of the overmoulded assembly comprises a connector body adapted to be paired with a complementary connector and metal plugs electrically connected to the terminals of the coil so as to be electrically powered so that the coil generates a magnetic field.
- the seal is an O-ring.
- the seal is made by inserting joint paste in the three-dimensional free space between the flange and the upper edge of the peripheral wall.
- the invention also relates to a high pressure valve comprising a valve body provided with a movable magnetic core cooperating with a valve member adapted to open or close a discharge orifice and, a valve actuator made according to one of the previous paragraphs.
- the invention also relates to a common rail assembly of a fuel injection system under pressure, said assembly comprising an elongated tubular shaped high pressure reservoir provided with a high pressure valve made according to the preceding paragraph and provided for regulate in operation the pressure inside the tank.
- FIG. 1 is a sectional view of a valve made according to the invention.
- FIG. 2 is an external isometric view of the actuator of the valve of FIG. 1. DESCRIPTION OF THE PREFERRED EMBODIMENTS
- FIG. 1 is presented a pressure regulating valve 10 arranged at the end of a common rail 12 of a device for injecting fuel under pressure, a device particularly known by its English name "common rail".
- the valve described here and its specific use have been chosen only by way of non-limiting example, the invention being able to benefit other solenoid valves operating in difficult environments.
- the common rail 12 is commonly elongate and tubular in shape extending along a main axis XI. It has a thick wall 14 defining a central cylindrical volume V for containing high pressure fuel and to supply several injectors not shown.
- the cylindrical volume V opens at the end of the ramp 12 into a counterbore 16 in which the valve 10 is additionally fixed.
- the valve 10 comprises a mechanical part 18 whose body 20 is directly arranged in said counterbore 16.
- the body 20 extends axially between a seat face 22 and a head face 24 and is provided with a through axial bore 26 XI and opening into the seat face 22 at the bottom of a seat counterbore 28 and, in the head face 24, at the bottom of a head counterbore 30.
- a valve member 32 usually called needle in reference to its elongate shape extending between a flat head 34 opposite a pointed end 36.
- the tip 36 cooperates with a seat 38 to open or close a discharge port 40 drilled in the center of the seat.
- a ball 44 can be inserted between the tip 36 and the opening of the orifice 40, the tip 36 of the needle emerging in the seat counterbore 28 in which also opens an evacuation channel. 46 in fluid continuity with an outlet mouth 48 arranged in the wall 14 of the ramp and leading to a low pressure tank not shown.
- a magnetic core 50 is axially movable XI within a space defined by a cylindrical cap 52 fixed to the body 20 via a tight fitting tubular piece 54 around the body 20.
- the needle head 34 emerges in the head counterbore 28 in which is arranged a spring 56 around said head 28 and which is axially XI compressed between the bottom of the countersink 30 and the magnetic core 50 so as to permanently repel the core 50 remote from the head face 24 of the valve body 20.
- the valve 10 also comprises an electromagnetic actuator 60 comprising an overmolded coil-connector assembly 62 inserted in an actuator body 64.
- the actuator body 64 has the shape of a cylindrical cup made by stamping a magnetic metal sheet of substantially constant thickness.
- the actuator body 64 is provided with a cylindrical peripheral wall 66 extending axially XI from a transverse bottom wall 68 to an upper edge 70 formed in the thickness of the peripheral wall 66.
- the wall device 66 is provided with a large substantially semicircular notch 72, as can be seen in FIG. 2, so that the upper edge 70 of said wall 66 extends in a three-dimensional space comprising a circular portion 74 inscribed in FIG.
- the coil-connector assembly 62 is a molded integral plastic assembly comprising a cylindrical coil portion 76 inserted into the actuator body 64 and a connector portion 78 extending laterally from the coil portion 76.
- the coil portion 76 comprises an annular electrical coil 80 defining a central cylindrical space E, a metal washer 82 of magnetic looping arranged vertically above the coil 80, that is to say, in the direction of FIG. 1, just above of the coil 80 and whose outer cylindrical face 84 is flush with the surface of the overmoulding.
- the connector portion 78 of the overmoulded assembly comprises a peripheral wall forming a connector body 86 at the center of which are arranged metal pins 88, also called electrical terminals electrically connected to the terminals of the coil 80.
- This connector is intended to be paired with a complementary connector, not shown, so that it can electrically power the coil 80 so that it generates a magnetic field M.
- the plastic material overmoulding the coil 80, the washer 82 and the metal plugs defines a substantially cylindrical outer wall 90 and wrapping the coil 80, a closure cap 92 closing the top of said outer wall 90 and the connector body 86 extending radially from the outer wall 90.
- the plastic defines a flange 94 projecting from the outer edge 90 said flange along a three-dimensional profile parallel to the profile of the upper edge 70 of the peripheral wall.
- the overmolded coil portion 76 is inserted axially XI into the actuator body 64, the connector portion 78 being engaged in the notch 72, the projecting rim 94 perfectly following the upper edge 70 of the peripheral wall of the actuator body.
- a seal 96 is arranged between the flange 94 and the upper edge 70, said seal 96 being in the chosen example of circular section and extending according to the three-dimensional profile before indicated.
- the outer face 84 of the magnetic washer is tightly mounted in contact with the inner face of the peripheral wall 66 of the actuator body 64.
- the coil 80 when the coil 80 is electrically powered, it generates the magnetic field M which "turns" around the passing coil 76 successively in the valve body 20, the magnetic core 50, the cap 52, the loop washer 82, the actuator body 64 and again in the valve body 20 against which the actuator body is supported.
- the actuator 60 is perfectly sealed and protected from external aggressions such as moisture or even tiny metal particles that could have inserted between the protruding rim 94 and the upper edge 70.
- the seal previously provided by the seal 96 can be made by a seal joint specially designed for this purpose, the paste then being inserted into the three-dimensional free space between the flange 94 and the upper edge 70 of the peripheral wall.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1552539A FR3034161A1 (fr) | 2015-03-26 | 2015-03-26 | Actionneur etanche de vanne haute pression |
| PCT/EP2016/056298 WO2016150982A1 (fr) | 2015-03-26 | 2016-03-22 | Actionneur etanche de vanne haute pression |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3275003A1 true EP3275003A1 (fr) | 2018-01-31 |
Family
ID=53794313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16714798.2A Withdrawn EP3275003A1 (fr) | 2015-03-26 | 2016-03-22 | Actionneur etanche de vanne haute pression |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3275003A1 (fr) |
| CN (1) | CN107371376A (fr) |
| FR (1) | FR3034161A1 (fr) |
| WO (1) | WO2016150982A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3064690A1 (fr) * | 2017-03-31 | 2018-10-05 | Delphi International Operations Luxembourg S.A R.L. | Ensemble rampe et vanne haute pression |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2838626B2 (ja) * | 1992-09-09 | 1998-12-16 | 日清紡績株式会社 | 電磁弁装置 |
| US6601569B2 (en) * | 2000-08-08 | 2003-08-05 | Siemens Automotive Inc. | Evaporative emission control system including a fuel tank isolation valve and a canister vent valve |
| US6955337B2 (en) * | 2003-04-03 | 2005-10-18 | Delphi Technologies, Inc. | Pneumatic module |
| DE102007036924A1 (de) * | 2007-08-04 | 2009-02-05 | Schaeffler Kg | Elektromagnetische Stelleinheit |
| DE102007036925A1 (de) * | 2007-08-04 | 2009-02-05 | Schaeffler Kg | Elektromagnetische Stelleinheit |
| DE102010060264B4 (de) * | 2010-10-29 | 2014-02-20 | Hilite Germany Gmbh | Elektromagnetisches Stellglied |
| EP2535554A1 (fr) * | 2011-06-15 | 2012-12-19 | Delphi Technologies Holding S.à.r.l. | Soupape électrique pour décharger un rail commun |
| CN102506217B (zh) * | 2011-10-21 | 2013-06-19 | 沈阳化工大学 | 一种柴油发动机电控高压共轨喷油系统用比例电磁阀 |
-
2015
- 2015-03-26 FR FR1552539A patent/FR3034161A1/fr not_active Ceased
-
2016
- 2016-03-22 EP EP16714798.2A patent/EP3275003A1/fr not_active Withdrawn
- 2016-03-22 WO PCT/EP2016/056298 patent/WO2016150982A1/fr not_active Ceased
- 2016-03-22 CN CN201680018386.6A patent/CN107371376A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN107371376A (zh) | 2017-11-21 |
| WO2016150982A1 (fr) | 2016-09-29 |
| FR3034161A1 (fr) | 2016-09-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20171026 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| INTG | Intention to grant announced |
Effective date: 20180803 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20181214 |