Snubber circuit for GTO thyristor
    61.
    发明授权
    Snubber circuit for GTO thyristor 失效
    GTO晶闸管缓冲电路

    公开(公告)号:US4678932A

    公开(公告)日:1987-07-07

    申请号:US857049

    申请日:1986-04-29

    CPC分类号: H03K17/08144

    摘要: A snubber circuit for a GTO thyristor including a series-connected member of a capacitor and a diode connected in parallel with a GTO thyristor and a series-connected member of a resistor and a thyristor connected in parallel with the diode. The thyristor is adapted to be turned on when the GTO thyristor is turned on and the thyristor is adapted to be turned off at the same time as or immediately after a turn off of the GTO thyristor, whereby the circuit is enabled to perform the same protecting function as that of a snubber circuit for a GTO thyristor which includes no thyristor and, further, to block a discharging current from the capacitor due to the ripple voltages produced across the GTO thyristor after its turn off, by means of the thyristor which is then in an off state, so that no current may flow through the resistor.

    摘要翻译: 一种用于GTO晶闸管的缓冲电路,其包括电容器的串联连接构件和与GTO晶闸管并联连接的二极管以及与二极管并联连接的电阻器和晶闸管的串联连接构件。 当GTO晶闸管导通并且晶闸管在与GTO晶闸管关断之后的同时或紧随其后关闭的晶闸管时,晶闸管适合导通,由此该电路能够执行相同的保护 作为不包括晶闸管的GTO晶闸管的缓冲电路的功能,并且还由于由于在其关闭之后在GTO晶闸管上产生的纹波电压,阻塞来自电容器的放电电流,借助于较小的晶闸管 然后处于断开状态,使得没有电流可能流过电阻器。

    Spraying materials containing ceramic needle fiber and composite
materials spray-coated with such spraying materials
    62.
    发明授权
    Spraying materials containing ceramic needle fiber and composite materials spray-coated with such spraying materials 失效
    含有陶瓷针状纤维和复合材料的喷涂材料用这种喷涂材料喷涂

    公开(公告)号:US4594106A

    公开(公告)日:1986-06-10

    申请号:US582174

    申请日:1984-02-21

    CPC分类号: C23C4/10 C23C4/04 C23C4/06

    摘要: Flame spraying compositions exhibiting improved adherence to a variety of substrates are disclosed, as well as articles coated with such compositions. The spraying compositions comprise a granulated mixture of two components: (1) a powdery material selected from the group consisting of powdered metals, heat resistant ceramics, cermets, and resins; and, (2) a ceramic needle fiber such as whisker crystals of SiC or Si.sub.3 N.sub.4. Articles coated with thin films of these coatings exhibit increased thermal and corrosion resistance.

    摘要翻译: 公开了对各种基材表现出改善的粘附性的火焰喷涂组合物以及用这种组合物涂覆的制品。 喷涂组合物包含两种组分的造粒混合物:(1)选自粉末状金属,耐热陶瓷,金属陶瓷和树脂的粉末材料; 和(2)陶瓷针状纤维如SiC或Si3N4的晶须晶体。 涂覆有这些涂层的薄膜的制品表现出增加的耐热和耐腐蚀性。

    Device for developing electrostatic latent images
    63.
    发明授权
    Device for developing electrostatic latent images 失效
    用于显影静电潜像的装置

    公开(公告)号:US4492456A

    公开(公告)日:1985-01-08

    申请号:US400391

    申请日:1982-07-21

    IPC分类号: G03G15/09 G03G15/08

    CPC分类号: G03G15/09

    摘要: An electrostatic latent image developing device having a non-magnetic carrier member for carrying a developer and fixed magnets installed inside said carrier member, and a regulating member disposed over the carrier member for regulating a developer layer thickness on the surface of the carrier member at a point between two peaks of a magnetic flux produced by two closely arranged magnets having same polarity inside the carrier member. The regulating member is a doctor blade and the carrier member is a rotatable cylindrical sleeve.

    摘要翻译: 一种具有用于承载显影剂的非磁性载体构件和安装在所述载体构件内的固定磁体的静电潜像显影装置,以及设置在所述载体构件上用于调节载体构件表面上的显影剂层厚度的调节构件 在载体构件内由具有相同极性的两个紧密排列的磁体产生的磁通的两个峰之间。 调节构件是刮刀,并且承载构件是可旋转的圆柱形套筒。

    Distributorless ignition system with surge absorbing means and apparatus
therefor
    64.
    发明授权
    Distributorless ignition system with surge absorbing means and apparatus therefor 失效
    无浪涌点火系统,具有浪涌吸收装置及其设备

    公开(公告)号:US4463744A

    公开(公告)日:1984-08-07

    申请号:US241374

    申请日:1981-03-06

    CPC分类号: F02P7/035 F02P15/08

    摘要: A distributorless ignition system in which a primary current alternately changing in its flowing direction is supplied to the primary winding of an ignition coil to induce a high secondary voltage alternately changing in polarity across the secondary winding of the ignition coil, and the induced voltage is sequentially distributed through a plurality of rectifiers such as diodes to a plurality of associated spark plugs thereby sequentially causing jumping of a spark across the spark gap of the spark plugs. An apparatus for mounting such a distributorless ignition system is also disclosed. In the invention, a surge voltage absorber is associated with each of the diodes, so that a surge voltage, which may be induced across the secondary winding of the ignition coil due to failure of normal sparking as when one or more of the spark plugs are removed or excessive wear occurs on the electrodes of one or more of the spark plugs, can be effectively absorbed without the possibility of damage to the diode or diodes and insulating members.

    摘要翻译: 一种无分配器点火系统,其中在其流动方向上交替变化的初级电流被提供给点火线圈的初级绕组,以引起次级绕组的二次绕组交替变化的次级电压,并且感应电压依次 通过诸如二极管的多个整流器分布到多个相关联的火花塞,从而顺序地引起火花在火花塞的火花隙之间的跳跃。 还公开了一种用于安装这种无分配器的点火系统的装置。 在本发明中,浪涌电压吸收器与每个二极管相关联,使得可能由于正常火花发生故障而在点火线圈的次级绕组上感应到浪涌电压,如当一个或多个火花塞为 可以有效地吸收一个或多个火花塞的电极上的去除或过度磨损,而不会损坏二极管或二极管和绝缘构件。

    ML-236B Derivatives and their preparation
    65.
    发明授权
    ML-236B Derivatives and their preparation 失效
    ML-236B衍生物及其制备方法

    公开(公告)号:US4410629A

    公开(公告)日:1983-10-18

    申请号:US351974

    申请日:1982-02-24

    摘要: Compounds of formula (I): ##STR1## (wherein R represents a group of formula ##STR2## and the corresponding ring-closed lactones, salts (especially alkali metal salts) and esters (especially C.sub.1 -C.sub.5 alkyl esters) thereof may be prepared by subjecting ML-236B, or ML-236B carboxylic acid or a salt or ester thereof to enzymatic hydroxylation, which may be effected by means of microorganisms of the genera Mucor, Rhizopus, Zygorynchus, Circinella, Actinomucor, Gongornella, Phycomyces, Martierella, Pycnoporus, Rhizoctonia, Absidia, Cunninghamella, Syncephalastrum and Streptomyces, or cell-free, enzyme-containing extracts from said microorganisms. The compounds are capable of inhibiting biosynthesis of cholesterol and are thus useful in the treatment of hypercholesteraemia.

    摘要翻译: 式(I)的化合物:其中R表示式(Ⅰ)的基团或相应的闭环内酯,盐(特别是碱金属盐)和酯(特别是C 1 -C 5) 烷基酯)可以通过使ML-236B或ML-236B羧酸或其盐或酯进行酶羟基化来制备,其可以通过毛霉属,根霉属,丝状芽孢杆菌属,圆弧菌属,放线菌属, 金盏草,植物疫霉,火鸡lla,,us,,,Ab ia,,,,,,and and and。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。

    Dense, flexible composite sheet material
    67.
    发明授权
    Dense, flexible composite sheet material 失效
    密实,柔性复合片材

    公开(公告)号:US4212916A

    公开(公告)日:1980-07-15

    申请号:US4680

    申请日:1979-01-19

    摘要: A composite material comprising a fibrous sheet which is impregnated with a polyurethane elastomer. The polyurethane elastomer comprises the reaction product of(A) a polymeric diol having a molecular weight of about 800-4000;(B) an organic diisocyanate having the formula (I) ##STR1## wherein R' and R.sup.2 are hydrogen or an alkyl group having 1-5 carbon atoms, respectively, and(C) a chain extender comprising an organic diamine having the formula (II) ##STR2## wherein R' and R.sup.2 are hydrogen or 40-95 mole % alkyl group having 1-5 carbon atoms, respectively, and a phthalic acid dihydrazide having the formula (III) ##STR3## This composite sheet material is useful as a synthetic leather, especially as a suede-like leather sheet material, and has high density, good flexiblity and crease resistance, a supple touch and 60-5 mole % pertinent rubber-like repulsive elasticity.

    摘要翻译: 一种复合材料,其包含用聚氨酯弹性体浸渍的纤维片材。 聚氨酯弹性体包含(A)分子量为约800-4000的聚合二醇的反应产物; (B)具有式(I)的有机二异氰酸酯,其中R'和R 2分别是氢或具有1-5个碳原子的烷基,和(C)包含有机二胺的增链剂,其具有式 II)其中R'和R 2分别为氢或具有1-5个碳原子的40-95摩尔%烷基和具有式(III)的邻苯二甲酸二酰肼该化合物片材可用作 合成皮革,特别是麂皮绒皮革片材,具有高密度,良好的柔韧性和抗折皱性,柔软的触感和60-5摩尔%的相关橡胶状斥力弹性。

    Intake mixture heating device for internal combustion engine
    68.
    发明授权
    Intake mixture heating device for internal combustion engine 失效
    内燃机进气混合加热装置

    公开(公告)号:US4205640A

    公开(公告)日:1980-06-03

    申请号:US847242

    申请日:1977-10-31

    IPC分类号: F02B19/10 F02M31/10 F02M31/00

    摘要: An intake manifold for a multi-cylinder internal combustion engine contains main intake passages leading from a main distribution chamber for supplying lean mixture to each cylinder. The intake manifold also has auxiliary intake passages leading from an auxiliary distribution chamber for supplying a rich mixture to each cylinder. Engine coolant is circulated through the intake manifold to act as heating means for the rich mixture and for part of the lean mixture. Another part of the lean mixture is not heated.

    摘要翻译: 用于多缸内燃机的进气歧管包含从主分配室引导的主进气通道,用于向每个气缸供应贫混合物。 进气歧管还具有从辅助分配室引出的辅助进气通道,用于向每个气缸供应浓混合物。 发动机冷却剂通过进气歧管循环,作为富混合物和部分稀混合物的加热装置。 贫混合物的另一部分不加热。

    Intake apparatus for internal combustion engine
    70.
    发明授权
    Intake apparatus for internal combustion engine 失效
    内燃机进气装置

    公开(公告)号:US4029063A

    公开(公告)日:1977-06-14

    申请号:US677670

    申请日:1976-04-16

    摘要: Unequal fuel concentrations in air-fuel mixtures delivered by a downdraft carburetor to branched intake pipes leading to engine cylinders has been traced to asymmetrical fuel delivery into the venturi passage in the carburetor. To equalize the fuel concentrations carried in the branched pipes, an inclined wall is provided in the distribution chamber that receives the air-fuel mixture from the carburetor. The inclination of the wall directs a greater quantity of air-fuel mixture into the branched pipe which would otherwise receive a leaner mixture because of the asymmetrical distribution of fuel from the venturi passage.

    摘要翻译: 通过下降式化油器将燃料混合物输送到通向发动机气缸的分支进气管道的空气 - 燃料混合物中的不均匀燃料浓度已被追溯到化油器中的文丘里通道内的不对称燃料输送。 为了均衡分支管中携带的燃料浓度,在从化油器接收空气 - 燃料混合物的分配室中设置有倾斜壁。 壁的倾斜将更多量的空气 - 燃料混合物引导到分支管中,否则由于来自文丘里管通道的燃料的不对称分布,混合物将会接收更稀的混合物。