baber/WOPTO huggingface dataset:
Patent JP-2013507598-A (JP)
Title: 金属薄板ストリップを熱処理する装置
IPC: F23C5/02
Filed: 2010-08-30
Abstract: 本発明は、金属薄板ストリップ（６）を熱処理する装置であって、少なくとも１つのラジアントチューブユニット（１）が設けられており、該ラジアントチューブユニット（１）が、金属薄板ストリップ（６）に対して平行な、共通の１つの軸方向平面内に位置する３つの管、すなわちバーナに接続可能な１つの中心管（２）と、両端部において湾曲管（４）を介して中心管（２）に結合された２つの外側管（３）とを有しており、さらに、ラジアントチューブユニット（１）の、バーナとは反対に位置する側に、中心管（２）と、両外側管（３）との間の両湾曲管（４）に結合された支承ピン（９）が設けられている形式の金属薄板ストリップを熱処理する装置に関する。支承ピン（９）は、両湾曲管（４）の間の楔状部（１１）を橋渡しするブリッジ（１０）に配置されていて、該ブリッジ（１０）が、２つの区分（１２）を備えていて、該２つの区分（１２）が、中心管（２）の軸線の両側に延びる、該中心管（２）の軸線に対して鋭角に傾けられている。
Patent JP-2013508186-A (JP)
Title: 事前印刷済みカラー画素を選択的に露出および隠蔽することによる物理媒体の個人化
IPC: B42D15/10
Filed: 2010-09-29
Abstract: 透明と不透明との間で変化させ、それによって感光子層または印刷された基板から不透明色を選択的に露出するために、カード上の感光子層を選択的に露光させることによってカラー画像を形成することによる、ＩＤカードの個人化。その他のシステムおよび方法も開示される。
Patent JP-2013510257-A (JP)
Title: 超臨界空気蓄エネルギーシステム
IPC: F03G7/00
Filed: 2010-08-31
Abstract: 【課題】新規空気蓄エネルギーシステムである超臨界空気蓄エネルギーシステムを提供すること。 【解決手段】超臨界空気蓄エネルギーシステムは、圧縮機セット（１，３）、熱交換器（２，４）、スロットル（５）、低温貯蔵タンク（６）、ポンプ（８）、膨張機セット（９，１０）、発電機（１１）、駆動ユニット（１２）及び管路を含む。当該システムは、エネルギー密度が高く、効率が高く、蓄エネルギー周期や地理的条件に制限されず、各種の発電所に適用し、環境に優しく、廃熱を回収することができるなどの利点を有する。 【選択図】図１
Patent JP-2013511248-A (JP)
Title: インバータ
IPC: B60L3/00
Filed: 2010-10-29
Abstract: 車両用の三相モータ（３）に電力を供給するためのインバータは，三相モータ（３）に電気的に接続されるハーフブリッジ（１ａ，１ｂ，１ｃ）を備える。本発明において，ハーフブリッジ（１ａ，１ｂ，１ｃ）は，パワー半導体スイッチ（５ａ；５ｂ）の入力端（６ｂ）及び出力端（６ｃ）に導電接続された電圧制限素子（８）を含む。電圧制限素子（８）により，パワー半導体スイッチ（５ａ；５ｂ）の入力端（６ｂ）及び出力端（６ｃ）の間に印加される電圧値に応じて，パワー半導体スイッチ（５ａ；５ｂ）の入力端（６ｂ）及び出力端（６ｃ）の間に高インピーダンス接続又は低インピーダンス接続を確立する。 【選択図】図１
Patent JP-2013510450-A (JP)
Title: ソレノイド・アクチュエータ
IPC: H01F7/122
Filed: 2010-11-05
Abstract: 短行程ソレノイド・アクチュエータ（４４）が開示されており、これは、少なくとも一つの極片（４７，４８）と、アーマチュア（５１）と、第１及び第２の位置の間で、励磁に応答してアーマチュアを動かす構成の電磁コイル（４６）とを備える。永久磁石（５２）は、アーマチュアが第１及び第２の位置にそれぞれあるときに、第１及び第２の位置においてアーマチュアを停止させるように配置され、かつ方向付けられている。スプリング（５３）は、アーマチュアを付勢するように配置されている。
Patent JP-2013511638-A (JP)
Title: 潮力発電プラントおよびその製造方法
IPC: F03B13/26
Filed: 2010-09-15
Abstract: 本発明は潮力発電プラントに関し、これは、ナセルハウジングを備えた装置ナセルと、回転ユニットの一部である水力タービンであって、回転ユニットは、複数のベアリング要素を備えたスライドベアリング機構によってナセルハウジングに搭載されている水力タービンとを具備してなる。本発明は、ナセルハウジングは、少なくとも一つの荷重受けコンクリート部分を備え、かつ、ベアリング要素は、コンクリート部分に対して、あるいはコンクリート部分中にキャストされたベアリングサポートに対して調整可能に取り付けられていることを特徴とする。
Patent JP-2013514003-A (JP)
Title: ３ｄディスプレイの０次元減光
IPC: G09G3/36
Filed: 2010-11-23
Abstract: 右及び左画像データを使用する３Ｄ又は多視点ディスプレイ用バックライトの０次元減光方法。この方法は、右及び左画像データの右及び左ピクセル輝度値を受信し、平均輝度値に基づく、若しくは輝度の百分位数値に基づく係数、又は左及び右ピクセル輝度値の絶対差を更に含む修正係数を使用して、右及び左ピクセル輝度値をリマッピングする。係数又は修正係数は、視差の考慮に基づいて特定の右及び左ピクセル輝度値をリマッピングするように選択的に使用される。この方法は、ディスプレイの輝度を知覚可能に又は実質的に損なうことなくバックライトを減光することにより節電をもたらす。
Patent JP-2013513949-A (JP)
Title: 高ドーズインプラントストリップの前に行われる、シリコンを保護するためのパッシベーションプロセスの改善方法
IPC: H01L21/3065
Filed: 2010-12-08
Abstract: 【解決手段】  フォトレジストをストリッピングして、イオン注入処理に関連する残留物をワークピースの表面から除去する方法および装置を改善する。さまざまな実施形態によると、ワークピースは、パッシペーションプラズマに暴露され、所定期間にわたって冷却された後、酸素系または水素系のプラズマに暴露されて、フォトレジストおよびイオン注入処理に関する残留物を除去する。本発明の側面は、ストリッピング速度を許容可能なレベルに維持しつつも、シリコン損失を低減し、残留物が略または全く無い状態とすることを含む。特定の実施形態に係る方法および装置では、高ドーズイオン注入処理の後でフォトレジスト材料を除去する。 【選択図】  図２
Patent JP-2013520777-A (JP)
Title: 電気端子
IPC: H01R9/00
Filed: 2011-03-01
Abstract: 【解決手段】本発明は、内部に配置されたスプリング力要素（２６）を作動させるための作動トリガ（１０）が内部に移動可能に配置された端子筐体（２２）を備える電気接続端子に関し、本発明によると、作動トリガ（１０）は、作動トリガ（１０）に印を付けるための標識面（１２）を端面（１６）に有する。 【選択図】図２
Patent JP-2013521602-A (JP)
Title: マイクロ電池及びその製造方法
IPC: H01M2/02
Filed: 2011-02-23
Abstract: 本発明は、基板（２）上のスタック（１７）を備えるマイクロ電池に関する。前記スタックは、密封層（１８）により覆われており、且つ、第１及び第２の電流コレクタ／電極アセンブリ（１９、２１）と、電解質（２０）と、外部電気負荷と第２の電流コレクタ／電極アセンブリ（２１）を接続する電気接続手段（２５）とを備える。この電気接続手段（２５）は、密封層（１８）をこの密封層（１８）の内部表面（２３）から外部表面（３０）へと貫通する少なくとも２つの導電性仕切りから形成されている。各仕切りは、第２の電流コレクタ／電極アセンブリ（２１）の前面（２２）に直接接する下部壁（３１）と、密封層（１８）の外部表面（３０）上に開口している上部壁（３２）とを有する。この仕切りは、密封層（１８）の中に区画化網状体（４０）を形成している。
Patent JP-2013521040-A (JP)
Title: 多機能栄養管
IPC: A61J15/00
Filed: 2011-02-02
Abstract: 医療装置は、栄養管７０の遠位先端に開口部１５２を持つ供給管腔７０と、栄養管７０に沿って間隔をおいて配置されるアクセス開口部１２０を持つ電気的管腔８４とを含む栄養管７０と、前記アクセス開口部近くに電気的に露出した部分１３２、１３２ａ、１３２ｂを持つ、前記電気的管腔内に配置された絶縁された導電体のセットと、前記電気的管腔内に配置され前記絶縁された導電体のセットの近くの前記電気的に露出した部分と電気的に接触する電極７２、７３、７４、７５、７８、７９、１４０であって、前記アクセス開口部内に配置された導電性材料部１４０を有する前記電極とを有する。前記電極は、予想される患者の心臓電気的中央線ＣＬ上に配置される少なくとも一つの上位又は近位電極７４、７５、７８、７９と、予想される患者の心臓電気的中央線ＣＬ下に配置される少なくとも一つの下位又は遠位電極７２、７３とを含む。
Patent JP-2014134963-A (JP)
Title: Image processing apparatus, image processing method and image processing program
Inventor: SUGIMURA MASAHIKO
IPC: G06T7/60
Filed: 2013-01-10
Abstract: PROBLEM TO BE SOLVED: To display also an image including no direction information in a correct vertical direction.SOLUTION: An image processing apparatus includes: an extraction part for extracting a group of feature points included in common in at least two first images out of a plurality of first images from the plurality of first images each including direction information indicating a vertical direction of an image; a detection part for detecting a group of feature points distributed in inherent positional relation on the basis of the vertical direction in at least two first images from the group of feature points extracted by the extraction part; a search part for searching the group of feature points detected by the detection part in a second image having no direction information; and a determination part for determining a direction of the second image on the basis of comparison of the positional relation of the group of feature points detected by the search part with the inherent positional relation corresponding to the group of the feature points.
Patent JP-2014133494-A (JP)
Title: Support structure of movable door
Inventor: NOBEMOTO KAZUO
IPC: E05D15/06
Filed: 2013-01-11
Abstract: PROBLEM TO BE SOLVED: To provide a support structure of a movable door which enables smooth movement of the movable door, minimizes damages of a rail guide body, and achieves high reliability even when distortion occurs in a rail body which contacts with the rail guide body.SOLUTION: A support structure of a movable door includes a movable door 1 which is supported through a rail guide body 3 disposed on a linear rail body 5 installed at a fixing part. The movable door 1 is supported by the rail guide body 3 through an integral structure formed by a bearing joint 11 that is fixed to the rail guide body 3 and may rotate along at least one of a horizontal surface and a vertical surface and a spherical bearing 12.
Patent JP-2014133849-A (JP)
Title: Resin composition for lamination and cured product
Inventor: NAKAMURA JUNICHI
IPC: C09D7/12
Filed: 2013-01-11
Abstract: PROBLEM TO BE SOLVED: To provide a resin composition for lamination having excellent heat resistance as a material for forming a layer atop a substrate and a cured product having excellent heat resistance, obtained by curing the resin composition for lamination.SOLUTION: Provided is a resin composition used as a material for forming a layer atop a substrate wherein the resin composition includes, as indispensable components, an oxirane compound possessing at least one intramolecular oxirane ring and a cationic curing catalyst, wherein the oxirane compound includes a compound possessing a hydroxyl group and/or ester group, and wherein the cationic curing catalyst includes a boron compound.
Patent JP-2014137071-A (JP)
Title: Friction damper
Inventor: SUGISAWA MITSURU
IPC: E04H9/02
Filed: 2013-01-15
Abstract: PROBLEM TO BE SOLVED: To provide a friction damper capable of miniaturizing the damper and capable of reducing the cost without requiring high processing accuracy.SOLUTION: A friction damper 10 includes a first pressure contact plate 13 connected to one structure element 1a of two structure elements through first connection means 11 tiltably in the thickness direction, and a pair of second pressure contact plates 14 arranged to sandwich the first pressure contact plate 13 from both surfaces with prescribed pressure contact force and connected to the other structure element 1b through second connection means 12 tiltably in the thickness direction, and relative movement is suppressed by frictional force of the first and the second pressure contact plates 13 and 14 sliding in accordance with relative movement of the structure elements 1a and 1b. The second connection means 12 includes a housing 27 for connecting the second pressure contact plates 14 and 14, a spherical sliding bearing 28 stored in the housing 27, and a pin 36 fitted to the spherical sliding bearing 28 and connecting the second pressure contact plates 14 and 14 and the other structure element 1b.
Patent JP-2014136590-A (JP)
Title: Slide type paper box
Inventor: SATO KEITA
IPC: B65D5/38
Filed: 2013-01-16
Abstract: PROBLEM TO BE SOLVED: To provide a slide type paper box that allows contents to be extracted therefrom without sliding a tray.SOLUTION: A slide type paper box comprises: a sleeve 10; and a tray 20 sliding on an inner wall of the sleeve 10. The sleeve consecutively connects via a ruled line a bottom plate 11, a side plate 12, a top face plate 13, a side plate 14 and a margin 15, where the margin is adhered to an inner surface of the bottom plate. The tray 20 has side plates 22a and 22b that are consecutively connected respectively to side surfaces of a bottom plate 21 via a ruled line. In front of the tray are provided an outer wall 24a of a front wall, a top surface 25a of a front wall, an inner wall 26a of the front wall and a margin 27a, where the outer wall of the front wall, the top wall of the front wall and the inner wall of the front wall compose a linkage mechanism, which are integrated to fall outside so as to open an extraction port. When the extraction port is closed, locking protrusions 29a and 29b consecutively connected to left and right lateral end portions of the inner wall of the front wall are locked to rear ends of protruding portions 30a and 30b respectively formed on the side plates.
Patent JP-2014141790-A (JP)
Title: Solar heat collector of building
Inventor: KANEKO SHOTA
IPC: E04B1/76
Filed: 2013-01-22
Abstract: PROBLEM TO BE SOLVED: To provide a solar heat collector of a building in which a heat storage chamber can be suitably installed without impairing the appearance of the inside of the building.SOLUTION: A building 10 is provided with: a heat collecting panel 41 receiving sunlight to collect heat thereof; a heat storage material 42 for storing the heat of sunlight collected by the heat collecting panel 41; heat transporting means for transporting the heat of the heat collecting panel 41 to the heat storage material 42 via a heat medium; a heat storage chamber 43 for accommodating the heat storage material 42 in its inside; and a fan device 54 for blowing out the heat stored in the heat storage material 42 from the inside of the chamber 43 through an outlet 59 into a room 33. The chamber 43 is disposed in a span space between floor girders opposed to each other in an upper floor unit 20B and horizontally adjacent to each other.
Patent JP-2014142471-A (JP)
Title: Image forming apparatus
Inventor: KAWASUMI RYOICHI
IPC: G03G21/16
Filed: 2013-01-23
Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of suppressing contamination inside an apparatus body due to scattering of developer, while avoiding sacrificing the arrangement and detachability of a unit inside the apparatus body.SOLUTION: An image forming apparatus 100 includes: a developing unit 220; a developing tray 500 that supports a lower surface of the developing unit 220 along a longitudinal direction of the developing unit 220; a small cover 3 that can open and close an opening 3k for attaching and detaching the developing unit 220; a fan 21 that generates an air stream; a duct 20 that guides the air stream generated by the fan 21 to the inside of an apparatus body 100A; a pair of ribs 3c that is provided between the small cover 3 and the developing unit 220, and connected with the duct 20 to form a first channel J1 through which the air stream generated by the fan 21 passes; and a pair of leg parts 220a that is provided between the developing tray 500 and the developing unit 220, and connected with the first channel J1 to form a second channel J2 through which the air stream generated by the fan 21 passes.
Patent JP-2014143869-A (JP)
Title: Ratio differential relay
Inventor: ASAI YURI
IPC: H02H7/045
Filed: 2013-01-25
Abstract: PROBLEM TO BE SOLVED: To provide a ratio differential relay in which malfunction is stably suppressed.SOLUTION: A ratio differential relay for protecting a transformer includes: a minimum operation value characteristic determining section 64 for determining whether differential current between input and output of the transformer exceeds a minimum operation value; a ratio characteristic determining section 62 for determining whether a relation between suppression current and the differential current satisfies a prescribed ratio characteristic; and an output synthesis section 66 for outputting a trip signal used for breaking of a breaker in response to output of the minimum operation value characteristic determining section 64 and the ratio characteristic determining section 62. The minimum operation value characteristic determining section 64 changes the minimum operation value in accordance with input voltage and output voltage of the transformer.
Patent JP-2013127975-A (JP)
Title: Extreme ultraviolet light source device
Inventor: HOSHINO HIDEYUKI
IPC: H01L21/027
Filed: 2013-01-31
Abstract: PROBLEM TO BE SOLVED: To provide an extreme ultraviolet light source device with which it is possible to obtain EUV light efficiently by irradiating a target with laser beams at almost uniform intensity with desired pulse width.SOLUTION: The extreme ultraviolet light source device includes: a chamber in which generation of extreme ultraviolet light is performed; target supplying means for supplying liquid or solid metal target to a predetermined position in the chamber; and a laser beam generation part for generating plasma by superimposing a plurality of pulse laser beams, which are accompanied by mutually different delays, on each other and irradiating the target supplied by the target supplying means with the plurality of pulse laser beams. The laser beam generation part includes a plurality of series of laser devices that respectively generate the plurality of pulse laser beams, with the plurality of pulse laser beams respectively outputted from the laser devices being superimposed on each other at the plasma generation position.
Patent JP-2014147302-A (JP)
Title: Konjak powder material, manufacturing method thereof, manufacturing method of spongy material, spongy product and food product
Inventor: KAMATA NORIHIRO
IPC: A23L19/00
Filed: 2013-01-31
Abstract: PROBLEM TO BE SOLVED: To provide a konjak sponge which allows for an extremely simpler and easier industrial production compared to conventional ones, and a manufacturing method thereof.SOLUTION: With use of raw material including konjak powder 1 and coagulant 2 and further with water 3, a konjak powder material 5 is produced fundamentally by a konjak noodle manufacturing method P. The produced konjak powder material 5 makes konjak noodles which are hardly disentangled even when boiled. The konjak noodles are dried by air-drying or the like so as to make a spongy material.
Patent JP-2014149349-A (JP)
Title: Color filter and liquid crystal display device including the same
Inventor: HIGASHI YUSUKE
IPC: G02B5/22
Filed: 2013-01-31
Abstract: PROBLEM TO BE SOLVED: To provide a color filter showing little decrease in transmittance even in high resolution of 21 μm or less of a sub-pixel pitch, and a liquid crystal display device using the color filter.SOLUTION: The color filter includes two or more types of color pixels 2, 3, 4 formed with a repetition pitch of 21 μm or less and an overcoat layer 5, successively layered on a transparent substrate 1. In the color pixels, a difference in refractive indices at wavelengths where different types of the color pixels show maximum transmittances is within 0.05; and a difference between an average refractive index of the different type of the color pixels and the refractive index of the overcoat layer is within 0.05.
Patent JP-2014148590-A (JP)
Title: Rubber composition
Inventor: TAKEYAMA YOSHIHISA
IPC: C08K3/06
Filed: 2013-01-31
Abstract: PROBLEM TO BE SOLVED: To provide a rubber composition which can allow a tire obtained therefrom to have low heat generation properties and be excellent in wet grip properties and wear resistance, to provide a rubber-crosslinked product which is obtained by crosslinking the rubber composition, and to provide another tire which is obtained by using the rubber-crosslinked product.SOLUTION: The rubber composition contains: 100 parts weight of a rubber component containing the modified conjugated diene rubber which is obtained by reacting a conjugated diene polymer chain having active terminals with a silicon compound having a functional group capable of being reacted with the active terminal thereof; and 10-200 parts weight of silica having the pH of 8-12.
Patent JP-2014153765-A (JP)
Title: Information processing device and information processing system
Inventor: KANNO KOUJI
IPC: G07G1/12
Filed: 2013-02-05
Abstract: PROBLEM TO BE SOLVED: To provide an information processing device and an information processing system that can easily issue a receipt when the information processing device is restarted after service job processing ends halfway as the device stops during service provision.SOLUTION: In an information processing system (1) including: an information processing device (2) which provides a service job and has a receipt issuing device (27) issuing a receipt corresponding to payment for the service job; and counter register equipment (3), the receipt issuing device (27) is so configured as to have a receipt issue accepting function (271) of accepting whether the receipt needs to be issued before service provision, an after-service receipt issuing function (272) of issuing the receipt after the service provision; and halfway-ending receipt issuing functions (1), (273) of issuing the receipt for a service job up to halfway ending if service job processing ends halfway during the service provision.
Patent JP-2014155059-A (JP)
Title: Signal processing apparatus, hearing aid and signal processing method
Inventor: MORIMOTO TAKASHI
IPC: G10L21/0364
Filed: 2013-02-08
Abstract: PROBLEM TO BE SOLVED: To provide a signal processing apparatus and the like in which unwanted gain variation in voice spectrum emphasis processing is prevented and a formant frequency is appropriately emphasized, thereby improving articulation of speech.SOLUTION: A signal processing apparatus determines whether to perform spectrum emphasis processing on an input signal formed from a plurality of frequency bands and, on the basis of a level of a signal in a frequency band of a processing object which is determined to perform the spectrum emphasis processing thereon and a level of a signal of a frequency band neighboring thereto, detects whether the frequency band of the processing object is a peak (steps S20, S21, S23). Regarding the signal of the frequency band of the processing object, the signal processing apparatus calculates a present spectrum gain on the basis of peak information and spectrum gain information in the past (steps S22, S25, S26). Thus, by adding an appropriate spectrum gain to the signal of the frequency band of the processing object, unwanted gain variation can be prevented and articulation of speech can be improved.
Patent JP-2014151019-A (JP)
Title: Control toy
Inventor: Urabe noriko
IPC: A63H5/00
Filed: 2013-02-08
Abstract: PROBLEM TO BE SOLVED: To provide a pleasant control toy in which music is generated at a tempo adjusted to a user's operation.SOLUTION: The control toy 10 includes: a sound-producing part 25 that generates music; a drumming surface 37 that a user beats while listening to music; a detector 38 that detects the beating of a user relative to the drumming surface 37; and a controller that, when music is generated, measures beating frequency detected by the detector 38 during a prescribed period and that adjusts speed of music generated by the sound-producing part 25 in accordance with the measured beating frequency. In this control toy 10, if a user's beating is fast relative to music, the music becomes fast and, if a user's beating is slow, the music becomes slow. Consequently, a music tempo follows up a user's beating tempo.
Patent JP-2014153296-A (JP)
Title: Remote meter-reading device
Inventor: MATSUDA NOBUHIRO
IPC: G01R11/00
Filed: 2013-02-13
Abstract: PROBLEM TO BE SOLVED: To provide a remote meter-reading device capable of easily detecting that a cover has been opened by mischief or the like.SOLUTION: A measurement part for measuring electric energy supplied from a power undertaker via a power transmission network, and consumed by a client side and a communication part for transmitting the measurement result of the measurement part to the outside are stored in a case 10. Terminals 2a to 2c and 3a to 3c are disposed outside the case 10. The terminals 2a to 2c are used for connecting a primary side power line to the measurement part, and the terminals 3a to 3c are used for connecting a secondary side power line to the measurement part. A terminal cover 20 for covering the terminals 2a to 2c and 3a to 3c is attached to the case 10. A detection switch 9a detects whether or not the terminal cover 20 is attached to the case 10. The case 10 is configured such that a body 30 is combined with a cover 40. A screw 50 with which the body 30 is connected to the cover 40 in a combined state is disposed in a region covered by the terminal cover 20.
Patent JP-2014155518-A (JP)
Title: Low frequency stimulation device
Inventor: YAMAZAKI IWAO
IPC: A61N1/32
Filed: 2013-02-14
Abstract: PROBLEM TO BE SOLVED: To provide a low frequency stimulation device that is capable of impressing a low frequency voltage in synchronization with generated music and that can prevent a voltage of an unexpected level from suddenly being supplied to a human body.SOLUTION: The low frequency stimulation 1 includes: a sound signal supply means 110 that outputs sound signals; a filter means 131 that passes sound signals of a prescribed frequency bandwidth of the sound signals; a signal generation means 132 that generates pulse signals by receiving sound signals above a preset level among the sound signals passed the filter means 131; an electrode 143 that supplies an electric current to a human body; a low frequency voltage generation means 142 that impresses the generated pulsative low frequency voltage to supply the corresponding electric current to the electrode; and a control means 170 that controls an output of the low frequency electric voltage by the pulse signals.
Patent JP-2014156794-A (JP)
Title: Fuel injection valve
Inventor: KOBAYASHI TATSUO
IPC: F02M61/18
Filed: 2013-02-14
Abstract: PROBLEM TO BE SOLVED: To maintain the momentum of a swirl flow to be introduced into an injection hole offset from the axial direction of a needle valve.SOLUTION: A fuel injection valve includes the needle valve having a seat part on the front end side, a nozzle body which includes a cylindrical swirl stabilizing chamber and has an opening in the swirl stabilizing chamber, and in which the injection hole offset from the axial direction of the needle valve is formed, and a swirl flow generating part in which a swirl groove is provided for imparting a swirl component to fuel introduced into the swirl stabilizing chamber. The fuel injection valve further includes a tapered shape part provided in the injection hole at the edge of the opening located on the upstream side in the flowing direction of a swirl flow in the swirl stabilizing chamber. The tapered shape part includes the edge of the opening to which a distance from the center point of the bottom face of the swirl stabilizing chamber is the shortest. The injection hole is arranged at a position where the ratio (y/r) of the shortest distance from the edge of the opening to the axial center of the needle valve to the radius of the swirl stabilizing chamber is 0.11.