baber/WOPTO huggingface dataset:
Patent JP-2005181362-A (JP)
Title: Matrix optical switch
Inventor: MAKIHARA MITSUHIRO
IPC: G02B26/08
Filed: 2003-12-16
Abstract: <P>PROBLEM TO BE SOLVED: To miniaturize a matrix optical switch and to improve productivity of the matrix optical switch.  <P>SOLUTION: Optical waveguides 1 crossing each other are provided on a substrate I, a groove 3 is formed at the crossing part of the optical waveguides, and the groove 3 is filled with a refractive index matching liquid L. A silicon layer 9 for joining and a Pyrex plate 7 are stacked on the substrate I. An electric heater 4 and an FET 13 or the like being an electric circuit are formed on a semiconductor device substrate II. The substrate I and the semiconductor device substrate II are adhered with an adhesive 17 to be fixed. An optical switching action is performed by moving the refractive index matching liquid L with the heat generation of the electric heater 4.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005144427-A (JP)
Title: Clogging removing device of trommel
Inventor: WAGAMITSU YOSHIAKI
IPC: B07B1/55
Filed: 2003-11-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a device for efficiently removing clogging of a rotary tube mesh in a trommel type sorting machine for sorting and sieving earth and sand, compost or the like of comparatively fine particle.  <P>SOLUTION: The clogging is removed by wind pressure by jetting compressed air to a material clogged in the rotary tube mesh from the outside of the tube mesh toward the inside thereof. Further a method for removing the clogging of the rotary tube mesh by the wind pressure while moving a compressed air port along a sorting rotary tube, is also proposed.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005183750-A (JP)
Title: Ptc element and switch using the same
Inventor: INABA YOSHIJI
IPC: H01C7/02
Filed: 2003-12-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a PTC element in which low resistance is held at room temperature, a high PTC characteristic appears at a high temperature and increase in a resistivity at the room temperature is suppressed even after heat shock.  <P>SOLUTION: In the PTC element 10 constituted of filling crystalline plastic 1 with dispersed conductive grains 2, 3 and having a pair of electrodes 4, the conductive grains 2, 3 consist of a plurality of grain groups having respectively different average grain size. Especially, these grain groups are a large grain group having relatively large grain size and a small grain group having relatively small grain size and the ratio of the grain size of the large grain group to that of the small grain group is 1:0.5 to 1:0.75.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005181851-A (JP)
Title: Photographing lens system and photographing apparatus having the system
Inventor: OGATA YASUSHI
IPC: G02B13/04
Filed: 2003-12-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a photographing lens system of a negative precedence type in which entry of dust into a lens barrel during focusing is reduced and a change in aberration during focusing is also reduced and to provide a photographing apparatus having the photographing lens system.  <P>SOLUTION: The photographing lens system includes, in order from the object side: a first lens group G1 having negative refracting power; a second lens group G2 having positive refracting power; a brightness diaphragm S; and a third lens group G3 having positive refracting power. The photographing lens system focuses from an infinite long distance to a finite long distance in such a way that with the first lens group G1 fixed, the second lens group G2 is positioned on the image side when focused in the finite long distance with respect to the position when focused in the infinite long distance whereas the third lens group G3 is positioned on the object side when focused in the finite long distance with respect to the position when focused in the infinite long distance.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005179600-A (JP)
Title: Method for repairing furnace wall of coke oven
Inventor: WATANABE SOICHIRO
IPC: C10B29/06
Filed: 2003-12-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for repairing a furnace wall of a coke oven capable of stably repairing the wall in a short time by a dry seal method independent of the cracked position of the wall by stabilizing the powder concentration of the dry sealing material in the carbonization chamber in a short time.  <P>SOLUTION: A crack 2 generated on the furnace wall between a carbonization chamber 1 and a combustion chamber of a coke oven is repaired by filling a refractory powder 12 to the crack. The filling of the powder is carried out by blasting the refractory powder into the carbonization chamber while keeping the pressure in the carbonization chamber to be higher than the pressure in the combustion chamber. The refractory powder is blown from the 1st or 2nd charging port from a side of coal charging ports 3-6 formed in a row from the pusher side to the quencher side at the upper part of the carbonization chamber and air is extracted from the 1st or 2nd charging port from the other side.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005188287-A (JP)
Title: Exhaust gas circulating device of internal combustion engine
Inventor: IRIYA YUICHI
IPC: F01N3/28
Filed: 2003-12-24
Abstract: <P>PROBLEM TO BE SOLVED: To make a plenty of circulating gas flow into a gas intake passage while restraining contamination of the inside of the gas intake passage by the circulating gas.  <P>SOLUTION: The exhaust gas circulating device of the engine 1 is furnished with a first circulating passage 31, a second circulating passage 32 and a two-way change-over valve 42. The first circulating passage 31 extends from a catalyst upstream part 12a on the upstream side of a catalyst unit 14 in an exhaust gas passage 12 to the gas intake passage 2 and circulates exhaust gas from the catalyst upstream part 12a. The second circulating passage 32 extends from a catalyst downstream part 12b on the downstream side of the catalyst unit 14 in the exhaust gas passage 12 to the gas intake passage 2 and circulates the exhaust gas from the catalyst downstream part 12b. The two-way change-over valve 42 switches circulation by the first circulating passage 31 and circulation by the second circulating passage 32.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005187597-A (JP)
Title: Water absorption-proofing material
Inventor: SHIBAHARA KAZUO
IPC: C09K3/10
Filed: 2003-12-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a water absorption-proofing material good in water repellency and excellent in the small-lot water-proofing treatment of inorganic construction materials each with a water-absorbing inorganic form laminated with a protective sheet.  <P>SOLUTION: The water absorption-proofing material comprises a water-based composition comprising (1) at least one material selected from the group consisting of paraffins and rosins, (2) a silicone and (3) an acrylic resin.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005185461-A (JP)
Title: Container for cooking
Inventor: SUGIMOTO KEIICHIRO
IPC: A47J27/022
Filed: 2003-12-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a container for cooking for which both of gas and electricity can be used as the source of heating energy, and which is safe and effectively performs heating works.  <P>SOLUTION: This container is provided with: a metallic container body 1; a plurality of plate-like heaters 2 provided side by side with spaces S between themselves in an attitude of standing vertically to the outer surface of the bottom wall 1a of the container body 1; and a thermally conductive coating member 3 for coating both of the side surfaces at least in the thickness direction of each plate-like heater 2 to transmit the heat of the heater to the bottom wall outer surface of the container body.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005187620-A (JP)
Title: Solidifier composition
Inventor: SAITO SUNAO
IPC: C04B28/04
Filed: 2003-12-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a solidifier composition which is excellent in soil-stabilizing effect by utilizing incinerated ash produced in a fluidized bed boiler.  <P>SOLUTION: The solidifier composition used is obtained by mixing the incinerated ash produced in the fluidized bed boiler and an alkaline earth metal salt essentially comprising calcium oxide and/or calcium hydroxide. Preferably, ≤100 pts.mass at least one chosen from the group consisting of ordinary portland cement, fly ash, granulated blast furnace slag, gypsum dihydrate, gypsum hemihydrate, anhydrous gypsum, aluminum sulfate and iron sulfate is added to 100 pts.mass solidifier composition.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005185174-A (JP)
Title: Probe set for identifying hla-c allele and method for identifying the same
Inventor: TSUKADA MAMORU
IPC: C12Q1/68
Filed: 2003-12-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a probe set useful for individually identifying each allele of HLA-C, and to provide a method for identifying the same using the probe set.  <P>SOLUTION: The method comprises constructing the probe set using probes covering all partial sequences containing base(s) specific to each allele of HLA-C and identify the HLA-C contained in a specimen using the probe set.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005177725-A (JP)
Title: Continuous fermentation apparatus
Inventor: KOIKE MASASHI
IPC: C05F9/02
Filed: 2003-12-16
Abstract: <P>PROBLEM TO BE SOLVED: To provide a continuous fermentation apparatus for simplifying a facility and realizing power saving of work, by continuously fermenting organic waste, e.g., food residue, without agitation, nor cutting.  <P>SOLUTION: Fermentation material adjusted in moisture is properly charged from a charging port 2, piled and moved on a movable bed 4, supplied with adjusted air from an air inlet port 10, to promote fermentation. While the material is subsequently moved toward a discharge port 3, fermentation is completed, and the material is discharged.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004533253-A (JP)
Title: ハイブリダイゼーションを検出するためのオリゴヌクレオチド
IPC: C12Q1/6818
Filed: 2002-06-07
Abstract: 中心領域及び、互いに相補的であり、且つステムループ構造を形成するハイブリダイゼーションを受けることができる２つの末端領域を含んで成るポリヌクレオチドであって、当該末端領域が当該中心領域のものと逆の配向にある、ポリヌクレオチド。当該オリゴヌクレオチドは、一方の末端をフルオロフォアで、そして他方の末端を消光基で標識されており、そして標的ポリヌクレオチドと中心領域との間のハイブリダイゼーションを検出するための方法において使用される。
Patent JP-2004530766-A (JP)
IPC: C08L33/06
Filed: 2002-06-25
Abstract: A thermoplastic elastomer. It is produced by impregnating a heat resistant polycondenzation copolymer containing soft segments with acrylate monomers and radical initiators and polymerizing the monomers inside the pellets. By incorporating a cross-linked polyacrylate phase into a block-elastomer based on an engineering polymer, such as polyester, polyamide or polyurethane, softer compounds having excellent heat and oil resistance are obtained.
Patent JP-2004535257-A (JP)
Title: 係留システムを有する移植カテーテル
IPC: A61M25/00
Filed: 2002-07-18
Abstract: 係留デバイスを有するデバイスを移植するためのカテーテル挿入装置が提供される。この装置は、患者の血管系を通って、内部体腔へと移植デバイスを移動させるための経路を提供する、デバイス送達チューブを備える。この移植デバイスは、管状チューブロッドによって、デバイス送達チューブを通して運ばれるかまたは押される。この移植デバイスは、プッシュロッド管腔を通過するラインへと係留される。展開後、この移植デバイスは、係留に対して引っ張ることによる再配置または回収のために、デバイス送達チューブへと引き戻され得る。
Patent JP-2004537687-A (JP)
Title: 磁石を有する吸着装置
IPC: F16B47/00
Filed: 2002-07-11
Abstract: 本発明は，ゴムで形成された吸着装置本体に磁石が設けられた磁石を有する吸着装置に関する。この吸着装置は，柔軟なゴムで形成された円錐形の吸着装置本体と，吸着装置本体の頂点部に挿入された磁石とからなる。磁石は所定ガウスの磁力を有する。かかる吸着装置は，既存の吸着装置では貼り付けることができない木，セメント壁の表面などに貼り付けることができ，吸着装置の取り付け対象物の範囲を大幅に増加できる。
Patent JP-2004537930-A (JP)
Title: モザイクを符号化する方法及び装置
IPC: H04N7/50
Filed: 2002-07-24
Abstract: 符号化されたデータのストリームを与えるモザイク画像を符号化する方法である。このモザイクは、イメージエレメントから構成されるサブイメージから構成されている。該ストリームにおける再同期マーカは、受信レベルでのデータの再同期を可能にする。本方法では、サブイメージ（１ １ ，…，１ Ｎ ）が、あるモザイクを与えるように符号化される画像において１つずつ下に配置される。モザイクは、該ストリームのデータを供給するようにＴＶタイプの走査に従って１エレメント毎に符号化され、それぞれのサブイメージの最初のエレメントが識別される。再同期マーカは、あるサブイメージに関連するデータを識別するように、該サブイメージのそれぞれ最初のエレメントの前で、該ストリームに配置される。
Patent JP-2005504813-A (JP)
Title: 合理的薬剤療法デバイス及び方法
IPC: A61F2/82
Filed: 2002-09-24
Abstract: 標的部位において最大の治療的恩恵をもたらすように相乗的様式で作用する、本質的に異なる２種の薬剤を組み合わせた、血管再狭窄を治療するための方法及びシステム。無毒な準限界用量の薬剤の制御された送逹が、カテーテル媒介ステント配置を介した第２薬剤の局所送達と組み合わされて、治療的恩恵を提供する。各々の薬剤は、明確に異なるが関連する分子経路を介して独立に作用するので、十分な治療的恩恵が、追加的にデザインされ得、そして標的部位においてだけ起こることができる。
Patent JP-2005508984-A (JP)
Title: リハイドレーティング製剤
IPC: A23L33/00
Filed: 2002-11-04
Abstract: 本発明は、低濃度のガラクトースおよびナトリウム供給源を含有する、特に子供（例えば幼児）に友好な脱水と戦うための水性製剤に関する。この脱水は、典型的には重症の下痢である。
Patent JP-2005519917-A (JP)
Title: 軟骨分解の全身阻害のための組成物および方法
IPC: A61K47/48
Filed: 2003-01-31
Abstract: 関節軟骨の分解を阻害するための方法および組成物。この組成物は、好ましくは、複数の軟骨保護剤（軟骨同化活性を促進する少なくとも１つの薬剤および軟骨異化を阻害する少なくとも１つの薬剤を含む）を含む。この組成物はまた、１つ以上の疼痛阻害剤および炎症阻害剤を含む。この組成物は、複数の関節における軟骨分解の危険を有する患者を処置するために、全身投与され得、そして関節に標的化されたキャリアまたは送達ビヒクル中に安定に処方され得る。あるいは、この組成物は、直接関節に注射または注入され得る。
Patent JP-2005518731-A (JP)
Title: 動き補償された細粒スケーラブル構成におけるドリフト最小化
IPC: H04N7/26
Filed: 2003-02-05
Abstract: 上位レイヤで動き補償を利用する細粒スケーラブル映像符号化機構において、低ビットレートでの予測ドリフトを最小化するための方法と装置である。前記方法と装置は、少なくとも映像の一部で動きを測定し、前記測定された動きが所定の閾値より下であるか否かを判断し、前記測定された動きが前記所定の閾値より下である場合に、前記上位レイヤで動き補償を利用する細粒スケーラブル映像符号化機構で前記映像の前記一部を符号化し、前記測定された動きが前記所定の閾値より上である場合に、前記上位レイヤで動き補償を利用しない細粒スケーラブル映像符号化で前記映像の前記一部を符号化する。
Patent JP-2005523585-A (JP)
Title: フォトレジストおよびエッチング残渣の除去方法
IPC: H01L21/461
Filed: 2003-01-17
Abstract: 【課題】フォトレジスト及びエッチング残渣の除去方法 【解決手段】方法は、プラズマアッシングに対し先行する誘電層のプラズマエッチングの間形成されたフォトレジスト残り及びエッチング残渣を取り除くことを提供する。アッシング方法は、水素含有ガスを含み、基板からフォトレジスト残りとエッチング残渣のかなりの量を除去するため低バイアスもしくはゼロバイアスを基板に印加する第１のクリーニングステップと、加えてチャンバ表面からの不利益なフルオロカーボン残渣をエッチングし除去する２ステッププラズマを使用する。増加されたバイアスは、フォトレジストの残りと、エッチング残渣を基板から除去するために第２のクリーニングステップにおいて基板に印加される。２ステッププロセスは、従来の１ステップアッシングプロセスに共通に観察されるメモリー効果を減らす。終点検出の方法は、アッシングプロセスをモニタするのに使用できる。
Patent JP-2005197859-A (JP)
Title: High frequency power amplifier circuit
Inventor: FURUYA TOMIO
IPC: H03F3/24
Filed: 2004-01-05
Abstract: <P>PROBLEM TO BE SOLVED: To provide a high frequency power amplifier circuit incorporating a bias control circuit that can supply an idle current with a desired value even when a threshold voltage of power amplifier MOS transistors is deviated from a prescribed value due to manufacturing dispersion thereby obtaining a stable output power in a wireless communication system for controlling the output power by changing a bias voltage of the power amplifier transistors.  <P>SOLUTION: In the high frequency power amplifier circuit (210) the output power of which is controlled by giving a bias voltage in response to a bias control voltage to the power amplifier MOS transistors (211 to 213) so as to supply the desired idle current, the bias control circuit is provided with a transistor (Q1) of the same structure as those of the power amplifier MOS transistors so as to configure the bias control circuit (230) such that a constant voltage is applied to a control terminal of the transistor to supply a current in response to the threshold voltage, and the current is used for a current for compensating the dispersion of the threshold voltage so that the bias voltage applied to the power amplifier MOS transistors can be automatically adjusted.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005197959-A (JP)
Title: Router
Inventor: MATSUURA TOSHIMITSU
IPC: H04L12/66
Filed: 2004-01-06
Abstract: <P>PROBLEM TO BE SOLVED: To provide a router capable of preventing many packets from passingfrom an abnormal terminal.  <P>SOLUTION: The router has a 1st interface part (1/5) which receives packets from a 1st network, a filter processing part (6) which decides whether the packets are allowed to be transferred, and a 2nd interface part (5/1) which transmits the packets to a 2nd network when the packets are allowed to be transferred. Each packet includes a transmission source address and a destination address. The abnormal terminal sends many packets to broadcast a computer virus on other networks (2nd network). The filter processing part (6) allows the packets to be transferred when the number of packets having different destination addresses and the same transmission source address is less than a set number, but discards the packets when the number of packets exceeds the set number. Consequently, many packets can be prevented from passing from the abnormal terminal (the same transmission source address).  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005193504-A (JP)
Title: Corrugated cardboard sheet manufacturing apparatus
Inventor: TAKADA YUTAKA
IPC: B31F1/24
Filed: 2004-01-07
Abstract: <P>PROBLEM TO BE SOLVED: To certainly prevent downward warpage without lowering productivity by making the rear liner paper of a corrugated cardboard sheet with the front face liner paper high in water content to efficiently and uniformly absorb moisture on the upstream side of a double facer.  <P>SOLUTION: Before the corrugating medium 1 and a rear liner 2 are laminated by a single facer 7, water is fed to the laminating side of the rear face liner 2 by a water sprayer 23 so as to make the rear face liner 2 to efficiently and uniformly absorbing moisture from the roughened laminating face of the rear face liner paper 2. Thus, the corrugated cardboard sheet with the front face liner high in moisture content is surely prevented from warping downward without lowering productivity.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005194473-A (JP)
Title: Resin composition for coating metal plate, resin-coated metal plate, can and can lid
Inventor: SATO KAZUHIRO
IPC: B65D1/12
Filed: 2004-01-09
Abstract: <P>PROBLEM TO BE SOLVED: To provide a resin composition for coating a metal plate, having a variety of excellent such properties as impact resistance, corrosion resistance, resistance to brittleness with time and resistance to high-temperature moist heat, together with suppressing gel formation, without causing problems concerning steam and the like; to provide a resin-coated metal plate having a coating layer composed of the resin composition; and to provide a can body and a can lid, made of the resin-coated metal plate.  <P>SOLUTION: The resin composition is composed of a thermoplastic polyester resin, an olefinic polymer, an ionomer resin and a polyphenol. Wherein the olefinic polymer is finely dispersed in the thermoplastic polyester resin, and, at the same time, at least a part of the same resin has a structure of being encapsulated with the ionomer resin. The polyphenol is contained by 0.01-2 wt.%.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005201934-A (JP)
Title: Display apparatus
Inventor: CHUNG JUN-WEN
IPC: H05B33/14
Filed: 2004-01-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide an organic electroluminescent display apparatus in which a decrease in contrast caused by ambient light is sufficiently suppressed.  <P>SOLUTION: The display apparatus includes a light-emitting layer disposed between a pair of electrodes and two complementary filter layers in which the color of one filter layer is substantially complementary to the color of the other filter layer. The two filter layers are arranged at a light emitting side of the display apparatus for significantly suppressing the decrease in contrast caused by ambient light.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005203498-A (JP)
Title: Wafer stocker, semiconductor device transfer system and transfer method
Inventor: HIRASAWA MASANARI
IPC: H01L21/68
Filed: 2004-01-14
Abstract: <P>PROBLEM TO BE SOLVED: To provide a semiconductor wafer stocker and a semiconductor device transfer system and transfer method whereby wafer accommodating efficiency is improved and the production line operating ratio is improved.  <P>SOLUTION: A cassette storage 21 and a wafer storage 22 are provided in the wafer stocker 10. In the cassette storage 21, a cassette transfer robot 21a transfers a wafer cassette through an automatic cassette transfer unit 20, a gateway 22c of the wafer storage 22, and a cassette shelf 14. At the wafer storage 22, a wafer transfer robot 22a transfers a semiconductor wafer 11 to a wafer shelf 12 from the gateway of the wafer storage 22. In this transfer system which includes a wafer stocker 10 of this design, a lot, for example, to stay long in the system is stored on the wafer shelf 12 provided in the wafer stocker 10.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005199825-A (JP)
Title: Air introducing passage for engine cooling air in combine harvester
Inventor: KOMATSU MASAHIRO
IPC: B60K11/04
Filed: 2004-01-14
Abstract: <P>PROBLEM TO BE SOLVED: To provide an air introducing passage for engine cooling air capable of obtaining sufficient engine cooling effect, and carrying out comfortable work, in a combine harvester wherein an engine is longitudinally disposed in an engine room under a driver's seat.  <P>SOLUTION: An intake air duct 34 is formed so as to be narrow in an upper part and wide in a lower part in side view, on a front side of the engine room 24. A front surface 34a of the intake air duct 34 has a shape tilted downward at a front part, and intake air ports 34b, 35b are provided on a side and a lower side of the intake air duct 34. The engine cooling air is sucked and discharged from a front side to a rear side of the engine room 24.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005208988-A (JP)
Title: Automatic design apparatus and automatic design method
Inventor: TAKEI HIROSHI
IPC: H01L21/82
Filed: 2004-01-23
Abstract: <P>PROBLEM TO BE SOLVED: To provide an automatic design apparatus capable of deciding a wiring path to satisfy a voltage drop limit value without increasing the chip size of a semiconductor chip.  <P>SOLUTION: The automatic design apparatus comprises: an initial setting section 20 reading size information on the semiconductor chip and position information on power supply pads, wiring initial wiring connecting the power supply pads to each other on the semiconductor chip, and setting a plurality of regions on the semiconductor chip in accordance with the initial wiring; a current consumption calculation section 23 calculating current consumption at the plurality of regions based on supply voltage information on the semiconductor chip, output load information on a plurality of transistor cells, operation frequency information, and switching frequency information: a voltage drop calculation section 24 analyzing worst voltage drop value information on a critical point at the plurality of regions, and calculating the voltage drop limit value of the plurality of regions in accordance with the voltage drop limit value information on the semiconductor chip and the worst voltage drop value information; and a first additional wiring design section 25 wiring first additional wiring along the initial wiring based on the current consumption at the plurality of regions and the voltage drop limit value.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005207382-A (JP)
Title: Exhaust gas control valve
Inventor: NAGAI TADASHI
IPC: F01N1/08
Filed: 2004-01-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide an exhaust gas control valve capable of simultaneously satisfying low noise requirements required at low rotation speed of an engine and low back pressure requirements required at high rotation speed and of suppressing unstable phenomenon of pressure amplitude due to increase of exhaust gas pressure receiving area.  <P>SOLUTION: A plurality of cylindrical parts 13, 15 formed in an inner diameter ϕd1 of a seat surface 12 partitioning an exhaust gas pressure receiving surface of a valve element 2 to larger inner diameters ϕd2, ϕd3 gradually are extended in a downstream side of the seat surface 12 of a valve seat 1 part via outbound flange part 14 respectively. A plurality of plug body parts blocking opening parts of each extended cylinder part 13, 15 are extended on the valve element 2 side. Upper end opening parts of the plurality of the cylindrical parts 13, 14 of the plurality of the plug body parts are opened one by one from a smaller diameter one from a closed condition where the valve element 2 abuts on the seat surface 12 to close a control valve, according to rotation angle of the valve element.  <P>COPYRIGHT: (C)2005,JPO&NCIPI