JP2008509352A - Compression spring for controlling dynamically loaded elements - Google Patents
Compression spring for controlling dynamically loaded elements Download PDFInfo
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- JP2008509352A JP2008509352A JP2007524309A JP2007524309A JP2008509352A JP 2008509352 A JP2008509352 A JP 2008509352A JP 2007524309 A JP2007524309 A JP 2007524309A JP 2007524309 A JP2007524309 A JP 2007524309A JP 2008509352 A JP2008509352 A JP 2008509352A
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/024—Covers or coatings therefor
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/021—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant characterised by their composition, e.g. comprising materials providing for particular spring properties
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/042—Wound springs characterised by the cross-section of the wire
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/047—Wound springs characterised by varying pitch
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2226/00—Manufacturing; Treatments
- F16F2226/02—Surface treatments
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
本発明は、動的に負荷されるエレメントを制御する圧縮ばね(1)であって、円筒形のコイルに巻かれたばね線材(2)から成っている形式のものに関する。圧縮ばね(1)は、動的に負荷されるエレメントの設計を考慮して最適化され、この場合ばね線材(2)のばね鋼(2)の材料、横断面ジオメトリ(d)及び表面(3)が、互いに合わせられている。この場合ばね鋼(2)の表面(7)は耐摩耗性及び/又は減摩擦性に改質されている。択一的に又は補足的に、ばね線材(2)の材料は弁鋼であり、かつ/又はばね鋼(2)の横断面ジオメトリは、真円とは異なった、少なくともほぼ楕円形又は対数的にプロファイリングされた形状で形成されている。本発明はまた、このような圧縮ばね(1)を製造する方法及びこのような圧縮ばね(1)の使用にも関する。 The present invention relates to a compression spring (1) for controlling a dynamically loaded element, which consists of a spring wire (2) wound around a cylindrical coil. The compression spring (1) is optimized in view of the design of the dynamically loaded element, in this case the spring steel (2) material of the spring wire (2), the cross-sectional geometry (d) and the surface (3 ) Are aligned with each other. In this case, the surface (7) of the spring steel (2) is modified to wear resistance and / or friction reduction. As an alternative or in addition, the material of the spring wire (2) is valve steel and / or the cross-sectional geometry of the spring steel (2) is at least approximately elliptical or logarithmic, different from a perfect circle It is formed in the shape profiled. The invention also relates to a method for producing such a compression spring (1) and the use of such a compression spring (1).
Description
本発明は、動的に負荷されるエレメントを制御する圧縮ばねであって、特に円筒形のコイルに巻かれたばね線材から成っている形式のものに関する。 The present invention relates to a compression spring for controlling a dynamically loaded element, in particular of the type consisting of a spring wire wound around a cylindrical coil.
円筒形の圧縮コイルばねはしばしば、クラッチ、ブレーキ、弁、スイッチ及びこれに類したものにおける圧着ばね、レリーズばね又は戻しばねとして使用される。特別な仕様可能性としては、コイルばねがプッシュロッドを戻すために使用される例えば高圧噴射系及び液圧式駆動装置の構成部材が挙げられる。 Cylindrical compression coil springs are often used as crimp springs, release springs or return springs in clutches, brakes, valves, switches and the like. Special specification possibilities include, for example, components of high-pressure injection systems and hydraulic drives in which a coil spring is used to return the push rod.
このような系において望まれていることは、このような系の構成部材をそれぞれ次のように、すなわち構造容積を最小にすると同時に、少なくとも等しいままの、有利には上昇する出力レベルが得られるように、設計することである。このことは、構成部材の高められた動的な負荷を伴う。 What is desired in such a system is that each of the components of such a system is obtained in the following manner, i.e. minimizing the structural volume, while at the same time providing an advantageously increasing output level that remains at least equal: Is to design. This entails increased dynamic loading of the components.
例えば、ディーゼル機関又はオット機関用のコモンレール系のための高圧ポンプの駆動装置及び、これらにおいて使用される機械エレメント、例えばカムローラは、常に、極めて大きな動的な負荷を受け、この場合このようなカム駆動装置の出力もしくは能力は、得られる最大のカム速度によって規定される。可能な加速もしくは遅延が大きくなればなるほど、強度は低下し、得られる耐用寿命は短くなり、そして構造空間の低減もより困難になる。 For example, high-pressure pump drives for common rail systems for diesel engines or otto engines and machine elements used in them, such as cam rollers, are always subjected to very large dynamic loads, in which case such cams The output or capacity of the drive is defined by the maximum cam speed that can be obtained. The greater the possible acceleration or delay, the lower the strength, the shorter the service life obtained, and the more difficult it is to reduce the structural space.
例えばカムを、中空半径の形成下で凹面状の湾曲をもつカム上昇で及び/又は接線をもつカム降下で形成することによって、カム形状が弁の制御時における速度及び加速に関して最適化されると、圧縮コイルばねのために利用できる構造空間は強制的に小さくなる。従ってこの場合に使用される圧縮ばねに対する高度な要求は、構造容積を同時に減じる場合、さらに高まることになる。 For example, by forming the cam with a cam rise with a concave curvature and / or with a cam drop with a tangent under the formation of a hollow radius, the cam shape is optimized for speed and acceleration during valve control. The structural space available for the compression coil spring is forcibly reduced. The high demands on the compression springs used in this case are therefore further increased if the structural volume is reduced simultaneously.
それにもかかわらず、その都度の使用例に対してばね作用が適切な圧縮コイルばねを、このように減じられた構造空間内に収容できるようにするために、ばね線材横断面は相応に減じられるもしくはジオメトリを最適化されねばならず、このことはしかしながら圧縮コイルばねにおける摩耗及び/又は疲れに関して問題がある。 Nonetheless, the spring wire cross-section is correspondingly reduced in order to be able to accommodate a compression coil spring whose spring action is appropriate for each use case in this reduced structural space. Alternatively, the geometry must be optimized, which is however problematic with regard to wear and / or fatigue in the compression coil spring.
ゆえに本発明の課題は、冒頭に述べた形式の、動的に負荷されるエレメントを制御する圧縮ばね、特に燃料噴射系用の液圧式ポンプのカム駆動装置又は弁のピストンのような、動的に負荷されるエレメントを制御する圧縮ばねを改良して、燃料噴射系のような系において、許容負荷限界のより大きな利用、より僅かな摩耗及び、小さな構造容積での実現を可能にする圧縮ばねを提供することである。 The object of the present invention is therefore to provide a dynamic spring, such as a compression spring for controlling a dynamically loaded element, in particular a hydraulic pump cam drive or a valve piston for a fuel injection system. Compression springs that control the elements that are loaded on the compression springs to enable greater utilization of allowable load limits, less wear, and smaller structural volumes in systems such as fuel injection systems Is to provide.
この課題を解決するために本発明の圧縮ばねは、冒頭に述べた形式の圧縮ばねにおいて、請求項1、請求項7又は請求項14の特徴部に記載のように構成されている。このような圧縮ばねの製造方法は請求項17に記載され、このような圧縮ばねの使用は請求項19に記載されている。 In order to solve this problem, the compression spring of the present invention is a compression spring of the type described at the beginning, and is configured as described in the characterizing portion of claim 1, claim 7 or claim 14. A method for producing such a compression spring is described in claim 17, and the use of such a compression spring is described in claim 19.
発明の利点
本発明は、ばね線材の材料、横断面ジオメトリ及び表面が、所定のばね特性を得るために選択されかつ互いに合わせられていることによって、傑出している。
Advantages of the Invention The present invention is distinguished by the fact that the material, cross-sectional geometry and surface of the spring wire are selected and matched to each other to obtain a predetermined spring characteristic.
このような選択及び調整は、本発明によれば特に動的に負荷されるエレメントに関して行われる。言い換えれば、動的に負荷されるエレメントの設計と、圧縮コイルばねの設計とは相互に作用し合う。構造空間が所定されていて、コイルばねの負荷限界が、動的に負荷されるエレメントによって所定される使用例に合わせて得ることが望まれている場合には、得るべきばね特性が所定されており、従ったコイルばねのばね線材の個々のコンポーネント、つまり材料、横断面ジオメトリ及び表面は、選択されかつ互いに合わせられる。 Such selection and adjustment is made according to the present invention, particularly with respect to dynamically loaded elements. In other words, the design of the dynamically loaded element and the design of the compression coil spring interact. If the structural space is specified and it is desired that the load limit of the coil spring be obtained for the use case specified by the dynamically loaded element, the spring characteristics to be obtained are determined The individual components, i.e. the material, the cross-sectional geometry and the surface, of the spring wire of the coil spring are selected and matched to one another.
この場合ばね線材の規定の材料選択、熱処理、横断面ジオメトリの規定の構成及び表面の規定の特性は、互いに補足し合い、これらは相互に作用し合うので、その結果圧縮コイルばねの規定された全体特性が形成される。 In this case, the specified material selection of the spring wire, the heat treatment, the specified configuration of the cross-sectional geometry and the specified characteristics of the surface complement each other, and they interact with each other, so that the compression coil spring is specified. Overall characteristics are formed.
材料の選択と横断面ジオメトリの構成の他に、熱処理の選択も、所望のばね特性に相応して合わせられると、特に有利である。 In addition to material selection and cross-sectional geometry configuration, it is particularly advantageous if the heat treatment selection is also tailored to the desired spring properties.
目的に合わせられた選択によって、それぞれ個々に最適化された圧縮コイルばねは、それぞれの許容行程応力においてより高い負荷を受けることができるようになり、この場合ばね線材の個々の巻条の間における摩擦及び摩耗、並びに圧縮コイルばねと圧縮コイルばねを固定するエレメントとの間における摩擦及び摩耗を減じることができる。 A tailored selection allows each individually optimized compression coil spring to be subjected to higher loads at each allowable stroke stress, in this case between the individual windings of the spring wire. Friction and wear, and friction and wear between the compression coil spring and the element fixing the compression coil spring can be reduced.
本発明の第1の解決策によれば、耐摩耗性及び/又は減摩擦の表面層を形成するために、ばね線材の表面が改質されている。 According to a first solution of the invention, the surface of the spring wire is modified in order to form a wear-resistant and / or friction-reducing surface layer.
これは通常次のことによって達成される。すなわちこの場合ばね線材のためにそれぞれ使用される材料が焼入れされ、これによって、摩耗の原因となる巻条間における自己研磨作用(Selbstscheuereffekt)が大きな影響を及ぼすことがなくなる。 This is usually accomplished by: That is, in this case, the respective materials used for the spring wire are quenched, so that the self-polishing action (Selbstscheuereffekt) between the windings causing wear is not greatly affected.
有利な表面改質としては、軟窒化、プラズマ溶射層、イオン打込みもしくはイオン注入法を挙げることができる。さらに別の有利な構成では、ダイヤモンド状の炭素層及びそのバリエーション並びにTiC層及びTiM層、並びに特にいわゆる「ソリッド滑剤コーティング」から成る層、及びナノ粒子の硬質層が、ばね線材の表面に形成されている。 Advantageous surface modifications include soft nitriding, plasma sprayed layers, ion implantation or ion implantation. In yet another advantageous configuration, a diamond-like carbon layer and its variations and TiC and TiM layers, and in particular a layer consisting of a so-called “solid lubricant coating” and a hard layer of nanoparticles are formed on the surface of the spring wire. ing.
本発明の第2の解決策によれば、本発明による圧縮コイルばねのばね線材が、高純度又は合金の鋼である弁鋼から製造されている。 According to a second solution of the invention, the spring wire of the compression coil spring according to the invention is manufactured from a valve steel which is a high purity or alloy steel.
この場合特に次のような弁鋼、すなわち0.5%〜0.7%の炭素を含有する弁鋼、0.5%〜0.7%の炭素を含有する弁鋼、0.8%〜1.0%のケイ素を含有する弁鋼、1.0%〜1.3%のマンガンを含有する弁鋼、あるいはクロム・バナジウム鋼又はクロム・ケイ素鋼が適している。 In this case, in particular, the following valve steels, that is, valve steels containing 0.5% to 0.7% carbon, valve steels containing 0.5% to 0.7% carbon, 0.8% to Valve steels containing 1.0% silicon, valve steels containing 1.0% to 1.3% manganese, or chromium-vanadium steel or chromium-silicon steel are suitable.
このような高純度もしくは合金の弁鋼では、有利な構成では、真空溶解又は鋳直しのような溶融法によって、例えば硫化マンガンのような非金属の含有物の量及び/又は酸化の影響が減じられる。 In such high purity or alloy valve steels, in advantageous configurations, the amount of non-metallic inclusions such as manganese sulfide and / or the effect of oxidation is reduced by a melting method such as vacuum melting or recasting. It is done.
高純度の鋼を使用すると、このような弁鋼によって製造された圧縮コイルばねの許容行程応力を著しく高めることができるという、大きな利点が得られる。 The use of high-purity steel has the great advantage that the allowable stroke stress of the compression coil spring produced by such valve steel can be significantly increased.
本発明の別の有利な構成では、付加的な最適化処置としてばね鋼の横断面ジオメトリが、真円とは異なった、少なくともほぼ楕円形又は対数的にプロファイリング(logarithmisch-profiriert)された形状で形成されている。 In another advantageous configuration of the invention, as an additional optimization measure, the cross-sectional geometry of the spring steel is at least approximately elliptical or logarithmisch-profiriert shaped, different from a perfect circle. Is formed.
横断面ジオメトリを所望のように変えることによって、横断面にわたる応力分布に関する特性を調節することができ、圧縮コイルばねによって制御されるエレメントの使用領域の動的な必要性に関して最適化することができる。例えばばね線材の横断面ジオメトリは、楕円形もしくは卵形に、さらにまた対数的にプロファイリングされて形成することができる。楕円形の鋼線材横断面は有利には、圧縮コイルばねのいわゆるブロック長さに対するセーフティ間隔を大きくできるように、変えることが可能である。さらに、楕円形、卵形又は対数的にプロファイリングされた横断面によって、圧縮コイルばねの内部における長い自由路を得ることができる。このような構成はさらに、対称的に逓増的なばねの製造を可能にし、ひいてはこのような圧縮コイルばねのために必要な構造空間を減じる。 By varying the cross-sectional geometry as desired, the characteristics regarding the stress distribution across the cross-section can be adjusted and optimized for the dynamic needs of the area of use of the element controlled by the compression coil spring. . For example, the cross-sectional geometry of the spring wire can be formed in an oval or oval shape and logarithmically profiled. The cross section of the elliptical steel wire can advantageously be varied so that the safety distance for the so-called block length of the compression coil spring can be increased. In addition, an elliptical, oval or logarithmically profiled cross-section can provide a long free path inside the compression coil spring. Such a configuration further allows the production of symmetrically increasing springs and thus reduces the structural space required for such compression coil springs.
本発明の別の観点に関して言えば、ばね線材の表面を加工することによって、圧縮コイルばねをその押圧内部応力(Druckeigenspannung)に関して最適化することができる。この場合例えばばね線材表面の皮むき(Schaelen)又はショットピーニング(Kugelstrahlen)による処理が使用される。 With regard to another aspect of the present invention, by processing the surface of the spring wire, the compression coil spring can be optimized with respect to its internal pressure (Druckeigenspannung). In this case, for example, a treatment by peeling the surface of the spring wire (Schaelen) or shot peening (Kugelstrahlen) is used.
本発明のさらに別の観点としては、ばね線材の表面の適宜な熱処理が挙げられ、このような熱処理はコーティングプロセス中に行うことができる。 Yet another aspect of the present invention includes appropriate heat treatment of the surface of the spring wire, and such heat treatment can be performed during the coating process.
最適化のためのすべての処置は、それぞれに又は互いに組み合わせて実施することができ、そしてそれぞれ個々の事例のために最適なされた圧縮コイルばねを製造することができる。 All the steps for optimization can be carried out individually or in combination with each other, and compression coil springs optimized for each individual case can be produced.
例えば、液圧駆動装置における弁のための圧縮コイルばねは、コモンレール系の弁のための圧縮コイルばねとは異なった寸法及び構成で形成される。 For example, a compression coil spring for a valve in a hydraulic drive is formed with a different size and configuration than a compression coil spring for a common rail valve.
本発明による圧縮ばねは、弁又はカム駆動装置のピストンとの関連において、特に、例えば自体公知の形式のコモンレール噴射系のような燃料噴射系用の液圧式のポンプとの関連において、特に有利に使用される。 The compression spring according to the invention is particularly advantageous in the context of a valve or cam drive piston, in particular in the context of a hydraulic pump for a fuel injection system, for example a common rail injection system of the type known per se. used.
カム駆動装置において本発明による圧縮ばねを使用する場合、カムを、最大のカム速度に関して有利に寸法設定することができ、これによって系全体を、その液圧出力及び耐用寿命に関して改善することができる。それというのは、例えば高いブレークスピードもしくは離脱回転数(Abspringdrehzahl)に基づいて摩耗及び疲れ現象を減じることができるからである。また、生じるオーバスイング(Oberschwingung)を良好に補償するために、湾曲凹部を備えたカム及び/又は接線を有するカム経過は、利用できる同じ構造空間で、構成することができる。それというのは、本発明による圧縮ばねは極めて小さな構造空間しか必要としないからである。 When using a compression spring according to the invention in a cam drive, the cam can be advantageously dimensioned for maximum cam speed, which can improve the overall system in terms of its hydraulic output and service life. . This is because, for example, wear and fatigue phenomena can be reduced on the basis of high break speeds or break-off speeds (Abspringdrehzahl). Also, to better compensate for the resulting overswing, cams with curved recesses and / or cam courses with tangents can be constructed with the same structural space available. This is because the compression spring according to the invention requires very little structural space.
本発明はまた、このような圧縮ばねを製造する方法にも関しており、圧縮ばねの製造時に、ばね線材の材料、横断面ジオメトリ及び表面の選択は、圧縮コイルばねが運転時に共働するエレメントの所望の動的な特性に関連して行われ、互いに合わせられる。圧縮ばねの設計は、動的に負荷されるエレメントの設計を規定し、かつ逆に動的に負荷されるエレメントの設計は圧縮ばねの設計を規定する。 The present invention also relates to a method of manufacturing such a compression spring, wherein when the compression spring is manufactured, the selection of the spring wire material, the cross-sectional geometry and the surface is the element on which the compression coil spring cooperates during operation. In relation to the desired dynamic properties of the two and matched to each other. The design of the compression spring defines the design of the dynamically loaded element, and conversely, the design of the dynamically loaded element defines the design of the compression spring.
本発明による圧縮ばねの製造時に、被覆プロセス中に、220℃未満の被覆温度で作業を行うと有利である。それというのは、これによって圧縮コイルばねの弛緩特性もしくは緩和特性を著しく改善することができ、特に、通常極めて不都合だと見なされる行程応力の降下を、大きな過剰応力(Ueberspannung)の場合でも十分に回避することができる。 During the production of the compression spring according to the invention, it is advantageous to work during the coating process at a coating temperature of less than 220 ° C. This makes it possible to significantly improve the relaxation or relaxation characteristics of the compression coil springs, especially when the process stress drop, which is usually regarded as extremely inconvenient, is sufficient even in the case of large overstress (Ueberspannung). It can be avoided.
本発明の別の利点及び有利な構成は、請求項、図面及び以下の記載に開示されている。 Further advantages and advantageous configurations of the invention are disclosed in the claims, the drawings and the following description.
図面
次に図面を参照しながら、本発明による圧縮ばねの1実施例を説明する。
Drawing Next, an embodiment of a compression spring according to the present invention will be described with reference to the drawings.
図1は、本発明による圧縮ばねを示す図である。 FIG. 1 is a view showing a compression spring according to the present invention.
圧縮コイルばねを形成する圧縮ばね1は、円筒形に巻かれたばね線材2から製造されている。
A compression spring 1 forming a compression coil spring is manufactured from a
ばね線材2の材料、横断面ジオメトリ及び表面は、図示の構成では所定のばね特性を得るために互いに合わせられており、この場合所定のばね特性は、コモンレール燃料噴射系の高圧燃料噴射ポンプのカム駆動装置のピストンにおける使用に相当している。
The material, the cross-sectional geometry and the surface of the
この場合横断面ジオメトリのためには、真円形の直径dが選択されており、この直径dは、与えられる負荷に相応して寸法設定されている。 In this case, a true circular diameter d has been selected for the cross-sectional geometry, and this diameter d is sized according to the applied load.
ばね線材2の材料としては図示の実施例では、表面処置によって改質された弁鋼が選択されており、その結果ばね線材2の表面3は耐摩耗性及び減摩擦性に形成されている。このようにして、圧縮ばね1の完全な圧縮時におけるばね線材2の接触時には、圧縮ばね1の互いに隣接する巻条4,4′の間における摩擦が小さく保たれる。
In the illustrated embodiment, valve steel modified by surface treatment is selected as the material of the
Claims (21)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004037721A DE102004037721A1 (en) | 2004-08-04 | 2004-08-04 | Compression spring for driving a dynamically stressed element |
PCT/EP2005/052772 WO2006015897A1 (en) | 2004-08-04 | 2005-06-15 | Compression spring used to control a dynamically stressed element |
Publications (1)
Publication Number | Publication Date |
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JP2008509352A true JP2008509352A (en) | 2008-03-27 |
Family
ID=34970091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2007524309A Pending JP2008509352A (en) | 2004-08-04 | 2005-06-15 | Compression spring for controlling dynamically loaded elements |
Country Status (5)
Country | Link |
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EP (1) | EP1776532A1 (en) |
JP (1) | JP2008509352A (en) |
KR (1) | KR20070034086A (en) |
DE (1) | DE102004037721A1 (en) |
WO (1) | WO2006015897A1 (en) |
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KR20130052546A (en) * | 2010-03-09 | 2013-05-22 | 페데랄-모굴 부르샤이트 게엠베하 | Helical compression spring for an oil scraper ring of a piston in an internal combustion engine and method for coating a helical compression spring |
JP2016511379A (en) * | 2013-03-14 | 2016-04-14 | レントン コイル スプリング カンパニー | Tension spring fitting with friction resistant coating |
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DE102007050819A1 (en) | 2007-10-24 | 2009-04-30 | Robert Bosch Gmbh | Electromagnetically actuated valve |
JP2010255759A (en) * | 2009-04-24 | 2010-11-11 | Nhk Spring Co Ltd | Coil spring |
DE102009030767A1 (en) * | 2009-06-27 | 2011-03-03 | Man Diesel & Turbo Se | Control unit, particularly valve or pump, for influence or supply of flow of fluid, has spring element formed as coil spring, where coil spring or guiding device of coil spring is coated in sections |
RU2498381C2 (en) * | 2012-02-15 | 2013-11-10 | Общество с ограниченной ответственностью "Константин Чайкин" | Method of accumulating and transmitting mechanical energy in clock mechanism and apparatus for realising said method |
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JP2016511379A (en) * | 2013-03-14 | 2016-04-14 | レントン コイル スプリング カンパニー | Tension spring fitting with friction resistant coating |
Also Published As
Publication number | Publication date |
---|---|
KR20070034086A (en) | 2007-03-27 |
EP1776532A1 (en) | 2007-04-25 |
DE102004037721A1 (en) | 2006-02-23 |
WO2006015897A1 (en) | 2006-02-16 |
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