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公开(公告)号：US4721253A
公开(公告)日：1988-01-26
申请号：US784062
申请日：1985-10-04
CPC分类号： F02M61/163 , B05B1/306 , B05B1/3405 , F02M61/162 , F02B2275/14 , Y02T10/123
摘要： An intermittent type swirl injection nozzle providing substantially improved spray characteristics while being easy to manufacture and install. The nozzle includes a nozzle body and a needle valve slidably disposed in a guide hole of the nozzle body with a spray hole communicating a body seat formed inside the nozzle body and the forward end of the needle valve. A swirl passage is provided around the needle valve for giving a swirl flow influence around the axis of the needle valve to fuel when the needle valve is lifted from the body seat. A straight passage is provided in a portion where the inner wall of the guide hole and the needle valve make sliding contact for giving the fuel a straight flow influence in the axial direction of the needle valve. The two flows are joined prior to passing through the spray hole.
摘要翻译： 间歇式旋流喷嘴，其易于制造和安装，提供显着改善的喷雾特性。 喷嘴包括喷嘴体和可滑动地设置在喷嘴体的引导孔中的针阀，其具有连通形成在喷嘴体内的主体座和针阀前端的喷孔。 在针阀周围设置有旋转通道，用于当针阀从主体座椅抬起时，围绕针阀的轴线产生涡旋流动的影响。 在引导孔的内壁和针阀进行滑动接触的部分中设置有直线通道，以使得燃料在针阀的轴向方向上产生直流影响。 两个流在通过喷孔之前连接。
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公开(公告)号：US4653694A
公开(公告)日：1987-03-31
申请号：US733816
申请日：1985-05-14
CPC分类号： F02M61/163 , F02M61/162 , F02B2275/14 , Y02T10/123
摘要： In an intermittent type swirl injection nozzle including a nozzle body having a through hole and a spray hole, a needle valve inserted into the through hole, and a partition member of a cylindrical shape fittedly and fixedly inserted into the through hole, a gap area between the needle valve and the partition member is increased in accordance with the lift of the needle valve. For this purpose, a tapered portion and a top end face are provided on the partition member in a manner that they contact with a tapered portion and a step portion provided on the needle valve when the needle valve is in a position to close the spray hole. The resultant injection nozzle has a variable injection rate and spray angle.
摘要翻译： 在包括具有通孔和喷孔的喷嘴体的间歇型旋流喷嘴中，插入通孔中的针阀和嵌合并固定地插入到通孔中的圆柱形分隔构件， 针阀和分隔构件根据针阀的升程而增加。 为此目的，在分隔构件上，当针阀处于关闭喷射孔的位置时，锥形部分和顶端面以与锥形部分接触的台阶部分和设置在针阀上的台阶部分设置 。 所得到的喷嘴具有可变的喷射速率和喷射角度。
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公开(公告)号：US5474745A
公开(公告)日：1995-12-12
申请号：US304228
申请日：1994-09-12
申请人： Masayuki Fukui , Koji Yokota , Yutaka Yokoi , Yujiro Oshima
发明人： Masayuki Fukui , Koji Yokota , Yutaka Yokoi , Yujiro Oshima
IPC分类号： F01N3/24 , B01D53/86 , B01D53/94 , B01J35/04 , F01N3/02 , F01N3/20 , F01N3/28 , F01N13/04 , F02B3/06 , F01N3/00 , B01D53/92
CPC分类号： F01N3/2046 , B01D53/9431 , B01J35/04 , F01N13/011 , F01N3/2889 , F01N2240/18 , F01N2250/12 , F01N2260/022 , F01N2570/04 , F01N2570/12 , F01N2570/14 , F01N2610/04 , F01N3/02 , F01N3/206 , F02B3/06 , Y02T10/26
摘要： An apparatus for efficiently purifying NOx in the exhaust gas or soluble organic substance in the exhaust gas from a diesel engine. A plurality of purification units are arranged in a housing, each of which is composed of a catalytic layer for reducing NOx and a cooling core for cooling the exhaust gas admitted through the catalytic layer. The multi-staged purification units are so constructed to admit the exhaust gas to flow therethrough. The catalytic layer in the form of a porous carrier such as a honeycomb structure carries catalytic components. Upon purifying soluble organic substance in the exhaust gas from a diesel engine, the catalytic components carried on the catalytic layer serve to efficiently purify such substance, as well as inhibiting the reaction to form sulfate.
摘要翻译： 一种用于有效地净化来自柴油发动机的废气中的废气或可溶性有机物质中的NOx的装置。 多个净化单元设置在壳体中，每个净化单元由用于还原NOx的催化剂层和用于冷却通过催化层进入的废气的冷却芯组成。 多级净化单元被构造成允许废气流过其中。 诸如蜂窝结构的多孔载体形式的催化层承载催化组分。 在从柴油发动机排出的废气中净化可溶性有机物质时，载持在催化层上的催化成分用于有效地净化这种物质，并抑制反应形成硫酸盐。
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公开(公告)号：US4641617A
公开(公告)日：1987-02-10
申请号：US600717
申请日：1984-04-16
申请人： Taro Aoyama , Yujiro Oshima
发明人： Taro Aoyama , Yujiro Oshima
IPC分类号： F02B23/00 , F02B3/06 , F02B23/02 , F02B23/06 , F02B23/10 , F02B31/00 , F02B75/12 , F02B19/08
CPC分类号： F02B23/0672 , F02B23/0618 , F02B23/0639 , F02B23/0675 , F02B23/0696 , F02B23/104 , F02B2023/108 , F02B2075/125 , F02B2275/14 , F02B2275/40 , F02B23/0621 , F02B23/0624 , F02B23/0648 , F02B23/0666 , F02B3/06 , Y02T10/123 , Y02T10/125
摘要： A direct injection type internal combustion engine has a piston reciprocatably fitted in the bore of a cylinder block defining a combustion chamber together with the cylinder block and a cylinder head. A main recess is formed in the combustion chamber for accelerating the swirl of intake air which is prepared and introduced by an intake device. At least one auxiliary recess is formed in the main recess and is arranged in the direction of the intake air swirl and in the direction of the fuel injection of a fuel injector for generating a secondary swirl different from the intake air swirl and for generating turbulence between the two swirls. Thus, the introduction of air into the fuel droplets fed from the fuel injector is promoted by the intake air swirl and the secondary swirl so that the combustion efficiency of the internal combustion engine is improved.
摘要翻译： 直喷式内燃机具有能够与气缸体和气缸盖一起可旋转地装配在气缸体的孔中的活塞，该气缸体限定燃烧室。 在燃烧室中形成有用于加速由进气装置制备和引入的进气旋涡的主凹部。 在主凹部中形成至少一个辅助凹部，并且沿着进气旋转的方向和在燃料喷射器的燃料喷射方向上布置以产生不同于进气旋流的次级涡流，并且用于产生湍流 两个漩涡。 因此，通过进气旋转和二次涡流来促进从燃料喷射器供给的燃料液滴中的空气，从而提高内燃机的燃烧效率。
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5.发明授权Method and apparatus for reducing nitrogen oxides from internal combustion engine 失效从内燃机中还原氮氧化物的方法和装置
公开(公告)号：US5272871A
公开(公告)日：1993-12-28
申请号：US887133
申请日：1992-05-22
申请人： Yujiro Oshima , Katsushi Abe , Kazuo Kawahara , Koji Yokota , Hideaki Muraki , Masayuki Fukui
发明人： Yujiro Oshima , Katsushi Abe , Kazuo Kawahara , Koji Yokota , Hideaki Muraki , Masayuki Fukui
CPC分类号： B01F5/0451 , B01F5/0463 , B01F5/0646 , B01F5/0654 , F01N13/009 , F01N3/0842 , F01N3/103 , F01N3/2066 , F01N2330/08 , F01N2470/02 , F01N2470/24 , F01N2610/04 , F02B1/04 , F02B3/06 , Y02T10/22 , Y02T10/24
摘要： Hydrogen gas from a hydrogen generator which creates hydrogen gas by the electrolysis of water or water vapor is supplied at the entrance to a catalyzer provided in an exhaust line. The catalyzer performs a catalytic reaction between hydrogen gas and nitrogen oxides to achieve decomposition into nitrogen gas and water vapor in the exhaust from an internal combustion engine. The nitrogen oxides are directly reduced with said hydrogen gas in a low temperature atmosphere not higher than 350.degree. C. to achieve efficient reduction in the nitrogen oxides. The improved method and apparatus provide a catalytic system with which the nitrogen oxides in the exhaust from a lean burnt engine or a diesel engine can be effectively reduced irrespective of the concentration of oxygen gas in the exhaust without impairing the good fuel economy of those engines.
摘要翻译： 来自通过电解水或水蒸汽产生氢气的氢气发生器的氢气在设置在排气管线中的催化剂的入口处供应。 催化剂在氢气和氮氧化物之间进行催化反应，从内燃机的排气中分解为氮气和水蒸气。 氮氧化物在不高于350℃的低温气氛中用所述氢气直接还原，以实现氮氧化物的有效还原。 改进的方法和装置提供了一种催化系统，其中来自贫燃发动机或柴油发动机的排气中的氮氧化物可以有效地减少，而不管排气中的氧气浓度如何，而不损害这些发动机的良好的燃料经济性。
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公开(公告)号：US4522172A
公开(公告)日：1985-06-11
申请号：US512055
申请日：1983-07-08
申请人： Yujiro Oshima , Taro Aoyama
发明人： Yujiro Oshima , Taro Aoyama
CPC分类号： F02B23/0624 , F02B23/0636 , F02B23/0675 , F02M61/162 , F02B2275/14 , F02B2275/40 , F02B23/0621 , F02B23/0669 , F02B3/06 , Y02T10/123 , Y02T10/125
摘要： A direct injection internal combustion engine of a compression ignition type uses swirl injection nozzle having relatively small penetration and relies on the combination of an intake swirl and compression squish flow as well as a substantial fuel spray angle to uniformly distribute fuel throughout the interior of a throttled combustion cavity recessed in the piston.
摘要翻译： 压缩点火式的直喷式内燃机采用具有相对较小穿透力的旋流喷嘴，并且依赖于进气旋流和压缩挤压流的组合以及大量的燃料喷射角度，以将燃料均匀分布在节流的内部 燃烧腔凹入活塞。
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公开(公告)号：US4408479A
公开(公告)日：1983-10-11
申请号：US345537
申请日：1982-02-03
CPC分类号： G01L23/222
摘要： A knocking detecting device for an internal combustion engine including: a casing in the form of an annular member fastened substantially perpendicularly to an outer sidewall of the engine block; a support member made of a vibration-isolating material such as rubber or synthetic resin, and having one end fastened to the casing and the other end projecting a predetermined distance from the outer sidewall of the engine block to a position within a water chamber or a coolant water passage; a pressure-sensitive member including pressure-sensitive surfaces mounted on the projecting end of the support member, facing away from each other and extending perpendicularly to the outer sidewall of the engine block, for detecting as a change in an electrical signal pressure vibrations transmitted as a knocking sound to the pressure-sensitive surfaces through coolant water from the partition when knocking is produced in the combustion chamber; and lead wires for delivering the electrical signal change responsive to the knocking. This device enables effective detection of only the knocking produced in the combustion chamber as the pressure vibrations in the coolant water.
摘要翻译： 一种用于内燃机的爆震检测装置，包括：壳体，其形式为基本上垂直于发动机缸体的外侧壁固定的环形构件; 由诸如橡胶或合成树脂的隔振材料制成的支撑构件，并且其一端紧固到壳体，另一端从发动机缸体的外侧壁凸出预定距离到位于水室内的位置 冷却水通道; 压敏构件，其包括安装在所述支撑构件的突出端上的压敏表面，所述压敏表面相对于彼此远离并垂直于所述发动机缸体的外侧壁延伸，用于检测作为传递的电信号压力振动的变化 在燃烧室中产生爆震时通过来自隔板的冷却剂水对压力敏感表面的敲击声; 以及用于响应于敲击传送电信号变化的导线。 该装置能够有效地检测在燃烧室中产生的爆震作为冷却水中的压力振动。
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8.发明授权
公开(公告)号：US4543929A
公开(公告)日：1985-10-01
申请号：US534449
申请日：1983-09-21
申请人： Masao Kataoka , Yujiro Oshima , Takashi Noda , Shigeo Suzuki
发明人： Masao Kataoka , Yujiro Oshima , Takashi Noda , Shigeo Suzuki
IPC分类号： F02B23/00 , F02B1/02 , F02B1/04 , F02B23/06 , F02B23/08 , F02B23/10 , F02B75/12 , F02F1/24 , F02F1/38 , F02F3/26 , F02F3/28 , F02M61/06 , F02M61/16 , F02M69/04 , F02B19/08 , F02B23/02
CPC分类号： F02F3/28 , F02B23/0639 , F02B23/0672 , F02B23/08 , F02B23/104 , F02F1/38 , F02F3/26 , F02M61/06 , F02M61/163 , F02M69/045 , F02B1/02 , F02B1/04 , F02B2023/108 , F02B2075/125 , F02B2275/40 , F02B23/0624 , F02B23/063 , F02F2001/245 , F02F2001/247 , Y02T10/123 , Y02T10/125
摘要： Disclosed are a turbulence generating method for an internal combustion engine and an internal combustion engine for carrying out that method. Main and auxiliary recesses communicating with each other are formed by at least two projections in the combustion chamber of a reciprocating internal combustion engine, which is defined by a piston, a cylinder head and a cylinder block. A swirling mechanism for swirling the intake air is disposed in an intake mechanism for supplying the intake air into the combustion chamber. A swirl of intake air is generated in the main recess by the swirling mechanism and is accelerated and introduced into the main recess as the piston rises. A turbulent layer is formed while the swirl is converted occasionally into turbulences by the projections. Secondary swirls other than the main swirl are generated in the auxiliary recesses. Turbulences are further generated between the swirl and the secondary swirls thereby to improve combustion efficiency.
摘要翻译： 公开了一种用于执行该方法的内燃机和内燃机的湍流产生方法。 通过活塞，气缸盖和气缸体限定的往复式内燃机的燃烧室中的至少两个凸起形成有彼此连通的主和辅助凹部。 用于旋转吸入空气的旋转机构设置在用于将进气供给到燃烧室中的进气机构中。 通过旋转机构在主凹部中产生进气的涡流，并随着活塞的上升而加速并引入主凹部。 形成湍流层，同时通过突起将涡流偶尔转换成湍流。 在辅助凹部中产生除主涡流以外的二次涡流。 在涡流和次级涡流之间进一步产生湍流，从而提高燃烧效率。
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公开(公告)号：US4526143A
公开(公告)日：1985-07-02
申请号：US526841
申请日：1983-08-26
申请人： Yujiro Oshima , Taro Aoyama
发明人： Yujiro Oshima , Taro Aoyama
CPC分类号： F02B23/0675 , F02B23/066 , F02B3/06 , F02B1/04 , F02B2075/125 , F02B2275/14 , F02B2275/40 , F02B23/0621 , F02B23/0624 , Y02T10/123 , Y02T10/125
摘要： A direct injection internal combustion engine of compression ignition type is provided with a piston cavity offset from the piston center and with an injection nozzle which injects a hollow conical fuel spray having a tangential velocity component and relatively weak penetration into a swirl set up in the combustion chamber. The injection geometry and the offset are such that squish and swirl flows interact to form an excellent air-fuel mixture over the whole volume of the cavity without forming local fuel concentrations or wetting the cavity wall.
摘要翻译： 压缩点火式直喷式内燃机设置有从活塞中心偏移的活塞腔，并具有注射喷嘴，喷嘴将具有切向速度分量和相对较弱渗透性的中空圆锥形燃料喷雾注入设置在燃烧中的涡流中 房间。 注射几何形状和偏移使得挤压和涡流相互作用以在空腔的整个体积上形成优异的空气 - 燃料混合物，而不形成局部燃料浓度或润湿腔壁。
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公开(公告)号：US4473046A
公开(公告)日：1984-09-25
申请号：US513490
申请日：1983-07-13
申请人： Taro Aoyama , Yujiro Oshima , Junichi Mizuta , Kiyokazu Sunami
发明人： Taro Aoyama , Yujiro Oshima , Junichi Mizuta , Kiyokazu Sunami
CPC分类号： F02B23/0675 , F02B23/0624 , F02B2275/14 , F02B2275/40 , F02B23/066 , F02B3/06 , Y02T10/123 , Y02T10/125
摘要： A direct injection type internal combustion engine includes a centrifugal injector having its port facing a recess formed in a combustion chamber. The injector is arranged such that its axis of injection fails to intersect the central axis of the recess but extends at an inclination with respect to the same. In an embodiment typifying the invention, the following relationship is satisfied: ##EQU1## in which: D designates the maximum distance between facing sides of said recess; wherein with respect to a first transverse plane containing the location of the maximum distance D of said recess and a second plane intersecting said first transverse plane at a right angle, being parallel to the axis of sprays of the swirl injector and containing the center of the recess on the first transverse plane, .beta. designates the distance between the axis of sprays of said swirl injector and a second plane intersecting, at a right angle, a first transverse plane containing the location of the maximum distance D of said recess, said second plane being parallel to the axis of sprays of said swirl injector and containing the center of said recess on said first transverse plane; .theta. designates the angle contained between the axis of sprays of said swirl injector and the first transverse plane; and .theta..sub.s designates the angle of sprays of said swirl injector during fuel injection. The practice of the invention prevents the wall surface of the combustion chamber from being wetted with fuel, thereby improving the combustion phenomena and reducing the specific consumption.
摘要翻译： 直喷式内燃机包括离心注射器，其离心注射器的端口面向形成在燃烧室中的凹部。 注射器被布置成使得其注射轴线不能与凹部的中心轴线相交，但是相对于凹部倾斜延伸。 在代表本发明的实施例中，满足以下关系：其中：D表示所述凹部的相对侧之间的最大距离; 其中相对于包含所述凹部的最大距离D的位置的第一横向平面和与所述第一横向平面成直角相交的第二平面，其平行于所述旋流喷射器的喷射轴并且包含所述第一横向平面的中心 在第一横向平面上的凹部，β表示所述旋流喷射器的喷射轴线与第二平面之间的距离，该第二平面以直角相交，所述第二平面以包含所述凹部的最大距离D的位置的第一横向平面相交，所述第二平面 平行于所述旋流喷射器的喷射轴线并且在所述第一横向平面上容纳所述凹部的中心; θ表示包含在所述旋流喷射器的喷射轴线与第一横向平面之间的夹角; θs表示燃料喷射期间所述旋流喷射器的喷射角度。 本发明的实践防止燃烧室的壁面被燃料润湿，从而改善燃烧现象并降低比耗。
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