EP1493534A1 - Procédé de fabrication de sièges de soupape et soupape avec une surface de siège conique - Google Patents

Procédé de fabrication de sièges de soupape et soupape avec une surface de siège conique Download PDF

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Publication number
EP1493534A1
EP1493534A1 EP03014909A EP03014909A EP1493534A1 EP 1493534 A1 EP1493534 A1 EP 1493534A1 EP 03014909 A EP03014909 A EP 03014909A EP 03014909 A EP03014909 A EP 03014909A EP 1493534 A1 EP1493534 A1 EP 1493534A1
Authority
EP
European Patent Office
Prior art keywords
valve
tool
valve seat
ball
honing
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Withdrawn
Application number
EP03014909A
Other languages
German (de)
English (en)
Inventor
Gerhard Flores
Alexander Weber
Harald Zang
Carsten Zoudlik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Gehring GmbH and Co KG
Original Assignee
Maschinenfabrik Gehring GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Gehring GmbH and Co KG filed Critical Maschinenfabrik Gehring GmbH and Co KG
Priority to EP03014909A priority Critical patent/EP1493534A1/fr
Priority to CNA2004800190123A priority patent/CN1816421A/zh
Priority to AT04760180T priority patent/ATE311271T1/de
Priority to DE502004000155T priority patent/DE502004000155D1/de
Priority to KR1020057025522A priority patent/KR20060096185A/ko
Priority to ES04760180T priority patent/ES2252730T3/es
Priority to US10/563,095 priority patent/US20110095222A1/en
Priority to PCT/EP2004/007062 priority patent/WO2005000524A1/fr
Priority to BRPI0412136-8A priority patent/BRPI0412136A/pt
Priority to EP04760180A priority patent/EP1536917B1/fr
Priority to DE202004020494U priority patent/DE202004020494U1/de
Priority to DE202004021514U priority patent/DE202004021514U1/de
Publication of EP1493534A1 publication Critical patent/EP1493534A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B15/00—Machines or devices designed for grinding seat surfaces; Accessories therefor
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49405—Valve or choke making
    • Y10T29/49409—Valve seat forming

Definitions

  • the invention relates to a process for the preparation of Valve seats specified in the preamble of claim 1 Genus and a valve with a substantially spherical Valve seat according to the preamble of claim 12.
  • Valve seats are often used in practice with a tapered sealing surface made, on which also the conical trained valve needle is applied over the entire surface. Even at high machining accuracy is a high tightness at Press above some 100 bar not given.
  • the process is designed as a grinding process, which a rotation and Translational movement has. This creates grooves a slope and thus a labyrinth communicating Scoring, which increases the leakage.
  • EP 0 955 128 B1 discloses a process for the preparation a sealing seat between a valve ball and a valve body described with conical valve seat. It will a valve body with a conically ground valve seat for the valve ball in a rotatably driven workpiece holder clamped.
  • a cylindrical grindstone is used for a fine grinding with an insert, the radial movements of the grindstone allows, in a tool holder used at an angle of attack of 1 ° up to 10 ° aligned obliquely to the axis of rotation of the workpiece holder is.
  • the radius of the the seat-forming arc greater than the radius the valve ball and the trough-shaped in the valve body longitudinal section Recess of the seat so dimensioned that in cross section measured shape deviations of the conically ground Valve seat of circular shape at least in the apex area the arcuate seat are eliminated.
  • This method therefore creates topographies in which the sealing ball digs trough-like. A line contact should be avoided.
  • the contact area is relatively large, the applied pressure on the contacted surface of the Ball low.
  • DE 197 57 117 A1 discloses a process for the production a valve seat body for a fuel injection valve known.
  • a valve seat body in a valve seat body, a passage opening created with a frustoconical one Section shaped valve seat area.
  • the passage opening also becomes a guide area with guide sections for a designed as a ball valve closing body generated.
  • the guide sections and the valve seat area be simultaneously using a machining tool Finished in the form of a master ball.
  • This tool master ball can be used as a honing, grinding or lapping tool be educated. This means that both bound as well as done with loose grain of this step can be.
  • the linear sealing surface of the seat to the ball is achieved by a narrow bead in the Valve seat is provided, which is about 0.1 mm from the Sealing surface is raised. It is also possible from aerodynamic Ground channel-like flow passages in Provide the upper portion of the conical seat. These measures however, require expensive processing steps.
  • the invention is therefore based on the object, a method for the production of valve seats of the generic type To create a way through which the valve seats create a structure obtained, with a creeping of the medium to be sealed Largely reduced and thus improves the sealing effect becomes.
  • the task is a valve specify with such a valve seat.
  • the developed method enables the production of a Topography of the valve seat for sealing the ball and the correction of the angle of the valve seat.
  • Topographies of the adjacent sealing surfaces are designed that a continuous and exclusive line touch a tolerance-appropriate leakage allows.
  • In one Injection pump housings can have multiple valve seats for machining attack.
  • the tightness against a system pressure up to over 2000 bar is the key functional parameter. It is defined as the amount of leakage per unit of time under certain operating conditions such as pressure, temperature and density of the medium.
  • the seal is made by a line contact of a ball achieved as a sealing body against a tapered sealing surface.
  • the ball is with less roughness depth than that Seat worked. Due to the line contact arises a high surface pressure. It thus creates an elastic Deformation of the individual profile elevation of the valve seat, which touches the ball. This in turn allows a complete line of the sealing surface of the valve seat to the spherical shape. Geometrically, this is possible through very high roundness requirements of less than 1.0 ⁇ m. Within This shape tolerance can increase the elasticity of the profile compensate for possible macroforming errors.
  • honing in several consecutive operations performed preferably three operations provided are, depending on pre-processing quality.
  • This has the Advantage that in each operation adapted machining conditions such as different tools for Use can come. It is particularly expedient that in each operation the roughness profiles of the previous honing operation with a tool with be removed finer cutting grain.
  • the tool rotates during honing at a speed of 500 min -1 to 6000 min -1 .
  • Subsequent to the honing grinding machining can be done deburring, in particular with diamond splitters and / or abrasive grains containing brushes.
  • it is expedient to specify such a measure by the pre-processing that in the processing step of the fine machining an axial addition of the material to the valve seat of about 50 .mu.m to 90 is removed.
  • the decisive factor is the axial addition, which completely removes the pre-machining profile.
  • the Axis of the rotating spindle of the processing machine not absolutely identical to the valve seat axis. It is therefore considered advantageous that during the Honing the head of the tool relative to the tool holder is deflected.
  • the deflection can be by pivoting the tool about a pivot point of the Tool holder or by elastic deformation of a Tool shank done.
  • To the processing speed it may be appropriate for the Honing grinding the tool and the workpiece driven in opposite directions and be moved.
  • Fig. 1 is a schematic representation of a longitudinal section shown by a valve 1.
  • the valve 1 consists of a Housing 2, in which a valve chamber 3 is formed.
  • the Valve chamber 3 is on one side of a conically shaped Valve seat 4 limited, wherein in the shown in Fig. 1 Execution of the cone angle is 90 °. Of course come here also deviating cone angle in Consideration.
  • a valve closure member 5 which in the present case is designed as a ball is.
  • the ball is movable in the valve chamber 3 held and can be lifted from the valve seat 4, whereby the valve is opened.
  • the illustration shown in Fig. 1 concerns the closed state of the valve.
  • the reference LA indicates the longitudinal axis through the valve designated.
  • Fig. 2 is a section of a machined surface of the Valve seat 4 shown in an enlarged view, wherein a plurality of grooves 6 and profile elevations 7 arcuate run. Relative to the longitudinal axis LA of the valve 1 are the grooves 6 and profile elevations 7 concentric, wherein a roundness after honing of 1.0 microns or is smaller.
  • FIG. 3 the basic configuration of the valve seat 4 with grooves 6 and profile elevations 7 is shown as a longitudinal section.
  • the serving as a valve closing member 5 ball is located at a distance from the valve seat 4, so that the valve is open.
  • the valve seat 4 has a plurality of concentric to the longitudinal axis LA extending grooves 6 and profile elevations 7, wherein due to the roughness of the processed valve seat 4, the profile elevations 7 protrude differently far.
  • the roughness P t of the machined surface of the valve seat 4 is, for example, 12 ⁇ m after honing grinding.
  • the roughness of the valve seat must be so great that an elastic deformation of the profile tips leads to the compensation of the roundness error.
  • the smaller the profile elevations the lower the possible compensation of the roundness error.
  • the roughness R z of the ball is, for example, «1 ⁇ m.
  • Fig. 4 shows an arrangement according to FIG. 3, but in the closed State of the valve, that is, the valve closure member 5 is pressed against the valve seat 4. there is the ball 5 with its surface, the lower one Roughness as that of the valve seat 4 has, at several Profile surveys 7, which in the illustrated embodiment five profile surveys are 7.
  • This plant at several Profile surveys 7 is possible that due to the design of the profile surveys 7 this a certain Have elasticity and thus as a result of the ball 5 deformed force in the range of their elasticity deformed become. This will create multiple concentric seals produced, whereby an extremely large tightness or extremely low leakage rate is achieved.
  • Fig. 5 is a tool 8 for fine machining of the valve seat shown.
  • the process step of fine machining is a honing grinding, which will be explained in more detail below is.
  • the tool 8 comprises a tool head 9 and a tool holder 10, the latter on the tool head 9 opposite end of a tool shank 11th is arranged.
  • the tool head 9 has a conical Lateral surface 15, the shape of the cone being that of the Valve seat 4 corresponds.
  • the tool head 9 is with Cutting grain 12 provided, preferably as cutting grain Diamond, cubic boron nitrite, silicon carbide or aluminum oxide is used. Binding systems are better known Types of construction.
  • the generatrices of the conical working surfaces can be straight, convex or concave be.
  • the grain supernatant is sized that the tread depth produced on the valve seat in one size is that an elastic deformation to compensate for Roundness leads.
  • FIG. 6 shows a longitudinal section through the tool 8, It can be seen that in the tool body a Channel 13 is located for coolant and / or lubricant, the has a plurality of outlets 14 in the region of the conical surface 15.
  • Fig. 7 shows an enlarged view of a section the work surface, that is the conical surface 15. From this illustration will also be apparent that at the outside a variety of particles of the cutting grain are stored. Likewise, longitudinal slots can be seen, the supply of the processing point with cooling lubricant to back up.
  • the valve seat 4 is first preprocessed, e.g. hardened and machined.
  • the machining after the Hardening can also be omitted with low hardness distortions. After that the fine machining takes place with the aid of the in Fig. 5th to 7 shown tool 8.
  • the kinematics of the method consists in the rotation of the tool under installation of the conical surface 15 of the tool on the tapered surface for generating of the valve seat 4.
  • the tool becomes corresponding the axial progress of the progressive removal. That's it advantageous, the tool periodically except labor intervention bring to the machining point with coolant for cooling and lubrication flow. This is by means of an adjusting device of the tool both force as well carried away possible.
  • the axial feed force of the tool is controlled process-oriented and the delivery routes are supervised.
  • the attachment of the tool by spring force is basically possible, but this concludes one Monitoring the delivery route in the process.
  • the fine machining is used in several operations as Honing grinding of the conical seats performed.
  • the shape and roughness profiles of the previous one become Honing with a finer cutting grain completely worn away.
  • the last operation is for Creation of a functional surface profile, the Previous operations serve to remove the shape error the pre-processing. This leads successively to finer Surfaces. Due to the kinematics arise in the Figures 2 to 4 shown concentric grooves and the between the grooves located profile surveys.
  • Honing grinding is still a deburring, at the e.g. with diamond split deburring tools and abrasive grain brushes is worked.
  • the control of the delivery for example, by a electromechanical adjusting device done.
  • This position is set to "0" and the tool is rotated so that the edit mode is started.
  • the removal in the axial direction during a machining operation should be in the perform predetermined cycle time.
  • the control of the adjusting device determines the removal and the required Time or the processing speed. Will the target removal not reached in the desired time, then increased automatically the power in the processing of the next Workpiece.
  • the method described above allows high Leakages due to the topography of the roughness profile and due to the extremely small roundness deviations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Lift Valve (AREA)
  • Taps Or Cocks (AREA)
  • Multiple-Way Valves (AREA)
EP03014909A 2003-07-01 2003-07-01 Procédé de fabrication de sièges de soupape et soupape avec une surface de siège conique Withdrawn EP1493534A1 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
EP03014909A EP1493534A1 (fr) 2003-07-01 2003-07-01 Procédé de fabrication de sièges de soupape et soupape avec une surface de siège conique
CNA2004800190123A CN1816421A (zh) 2003-07-01 2004-06-30 用于制造阀座及阀的方法
AT04760180T ATE311271T1 (de) 2003-07-01 2004-06-30 Verfahren zur herstellung von ventilsitzen und ventil
DE502004000155T DE502004000155D1 (de) 2003-07-01 2004-06-30 Verfahren zur herstellung von ventilsitzen und ventil
KR1020057025522A KR20060096185A (ko) 2003-07-01 2004-06-30 밸브 시트의 제조 방법 및 밸브
ES04760180T ES2252730T3 (es) 2003-07-01 2004-06-30 Procedimiento para fabricar asientos de valvulas, y valvula.
US10/563,095 US20110095222A1 (en) 2003-07-01 2004-06-30 Method for the production of valve seats, and valve
PCT/EP2004/007062 WO2005000524A1 (fr) 2003-07-01 2004-06-30 Procede de production de sieges de soupapes et soupape
BRPI0412136-8A BRPI0412136A (pt) 2003-07-01 2004-06-30 válvula com assento de válvula e processo para fabricação de assento de válvula
EP04760180A EP1536917B1 (fr) 2003-07-01 2004-06-30 Procede de production de sieges de soupapes et soupape
DE202004020494U DE202004020494U1 (de) 2003-07-01 2004-06-30 Ventil
DE202004021514U DE202004021514U1 (de) 2003-07-01 2004-06-30 Werkzeug zum Honschleifen von Ventilsitzen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03014909A EP1493534A1 (fr) 2003-07-01 2003-07-01 Procédé de fabrication de sièges de soupape et soupape avec une surface de siège conique

Publications (1)

Publication Number Publication Date
EP1493534A1 true EP1493534A1 (fr) 2005-01-05

Family

ID=33427083

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03014909A Withdrawn EP1493534A1 (fr) 2003-07-01 2003-07-01 Procédé de fabrication de sièges de soupape et soupape avec une surface de siège conique

Country Status (9)

Country Link
US (1) US20110095222A1 (fr)
EP (1) EP1493534A1 (fr)
KR (1) KR20060096185A (fr)
CN (1) CN1816421A (fr)
AT (1) ATE311271T1 (fr)
BR (1) BRPI0412136A (fr)
DE (2) DE202004021514U1 (fr)
ES (1) ES2252730T3 (fr)
WO (1) WO2005000524A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3087685A1 (fr) * 2018-10-31 2020-05-01 Centre Technique Des Industries Mecaniques Methode de fabrication d’un ensemble d’etancheite pour le controle du debit des ecoulements de fluide

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102322379B (zh) * 2007-01-29 2013-10-30 三菱电机株式会社 燃料喷射阀
CN101589222B (zh) * 2007-01-29 2012-05-09 三菱电机株式会社 燃料喷射阀
JP5153898B2 (ja) * 2010-04-28 2013-02-27 セントラル硝子株式会社 ハロゲンガス又はハロゲン化合物ガスの充填容器用バルブ
WO2011147078A1 (fr) * 2010-05-25 2011-12-01 Emerson Process Management (Tianjin) Valve Co., Ltd. Appareil d'aménagement intérieur de soupape comprenant une cavité destinée à recevoir des substances contaminées de la surface d'étanchéité
CN203125128U (zh) * 2012-11-14 2013-08-14 富鼎电子科技(嘉善)有限公司 毛刺去除装置
JP5831510B2 (ja) * 2012-11-20 2015-12-09 株式会社デンソー 燃料噴射弁および燃料噴射弁の取付方法
JP6000885B2 (ja) * 2013-03-25 2016-10-05 サンコール株式会社 シール弁及びその製造方法
DE102016014181B4 (de) * 2016-11-28 2022-08-18 KAPP Werkzeugmaschinen GmbH Verfahren zum Abrichten einer Schleifschnecke mittels einer Abrichtrolle und Abrichtrolle
CN106334765B (zh) * 2016-11-30 2018-06-08 芜湖全程智能科技有限公司 Abs电磁阀阀座压球窝设备
US10480661B2 (en) * 2017-09-06 2019-11-19 Baker Hughes, A Ge Company, Llc Leak rate reducing sealing device
JP6963458B2 (ja) * 2017-10-20 2021-11-10 株式会社ミクニ バルブ装置
JP2020037989A (ja) * 2018-09-06 2020-03-12 日立オートモティブシステムズ株式会社 弁機構およびこれを備えた燃料供給ポンプ
AU2019376683A1 (en) * 2018-11-06 2021-05-27 Ozone 1 Pty Ltd Flow control device
JP7132888B2 (ja) * 2019-06-05 2022-09-07 Ckd株式会社 流体制御機器の製造方法
CN110844108B (zh) * 2019-11-22 2024-06-11 上海航翼高新技术发展研究院有限公司 一种飞机减压器组件氟塑料阀口的修复工具及修理方法
CN114643306B (zh) * 2022-05-19 2022-08-02 成都成高阀门有限公司 一种阀门的阀座压制工装
CN114918818B (zh) * 2022-05-31 2024-07-23 重庆川仪自动化股份有限公司 单向阀的宝石阀座密封槽的研磨抛光方法

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DE19757117A1 (de) * 1997-12-20 1999-06-24 Bosch Gmbh Robert Verfahren zur Herstellung eines Ventilsitzkörpers für ein Brennstoffeinspritzventil und Brennstoffeinspritzventil
US5954312A (en) * 1996-01-31 1999-09-21 Siemens Automotive Corporation Groove means in a fuel injector valve seat
US20020040523A1 (en) * 2000-06-20 2002-04-11 Harald Goldau Method of finishing a valve seat for ball valves, in particular for fuel injection valves in internal combustion engines

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US1560235A (en) * 1925-01-05 1925-11-03 Hinsch Albert Otto Valve
US5241794A (en) * 1990-05-30 1993-09-07 The Gleason Works Grinding wheel for cutting blades
DE4441623C2 (de) 1993-12-15 1997-08-28 Kopp Kadia Maschinenbau Verfahren und Werkzeug zum Schleifen einer Fase am Anfang einer Bohrung
US6105610A (en) * 1998-02-13 2000-08-22 Liquid Metronics Incorporated Cartridge valve with triple sequential seal
US6098958A (en) * 1998-05-06 2000-08-08 Ernst Thielenhaus Kg Valve assembly, especially for a fuel-injection valve and method of making same
US6755720B1 (en) * 1999-07-15 2004-06-29 Noritake Co., Limited Vitrified bond tool and method of manufacturing the same
DE10046304C1 (de) 2000-09-19 2002-06-06 Bosch Gmbh Robert Verfahren zum Herstellen eines Ventilsitzkörpers eines Brennstoffeinspritzventils

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5954312A (en) * 1996-01-31 1999-09-21 Siemens Automotive Corporation Groove means in a fuel injector valve seat
DE19757117A1 (de) * 1997-12-20 1999-06-24 Bosch Gmbh Robert Verfahren zur Herstellung eines Ventilsitzkörpers für ein Brennstoffeinspritzventil und Brennstoffeinspritzventil
US20020040523A1 (en) * 2000-06-20 2002-04-11 Harald Goldau Method of finishing a valve seat for ball valves, in particular for fuel injection valves in internal combustion engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3087685A1 (fr) * 2018-10-31 2020-05-01 Centre Technique Des Industries Mecaniques Methode de fabrication d’un ensemble d’etancheite pour le controle du debit des ecoulements de fluide

Also Published As

Publication number Publication date
ES2252730T3 (es) 2006-05-16
DE502004000155D1 (de) 2006-01-05
WO2005000524A1 (fr) 2005-01-06
ATE311271T1 (de) 2005-12-15
BRPI0412136A (pt) 2006-08-15
DE202004021514U1 (de) 2008-07-31
US20110095222A1 (en) 2011-04-28
CN1816421A (zh) 2006-08-09
KR20060096185A (ko) 2006-09-08

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