Method for controlling an electromagnetic valve, in particular for an automatic transmission of a motor vehicle
    2.
    发明授权
    Method for controlling an electromagnetic valve, in particular for an automatic transmission of a motor vehicle 有权
    用于控制电磁阀的方法,特别是用于机动车辆的自动变速器

    公开(公告)号:US07260462B2

    公开(公告)日:2007-08-21

    申请号:US10773668

    申请日:2004-02-06

    摘要: A method for controlling an electromagnetic valve, in particular for an automatic transmission of a motor vehicle. With known methods, electromagnetic valves are triggered with a pulse-width-modulated signal having a constant clock frequency. The object is to provide a method by which a rapid response characteristic and a high adjustment precision of the electromagnetic valve are made possible. The specific properties of a hydraulic system in which electromagnetic valves are used, in particular the rigidity and damping, are not constant but instead change considerably under different operating states of the hydraulic system and/or with different performance quantities of the electromagnetic valve. These different properties are taken into account through the change in the clock frequency as a function of performance quantities of the electromagnetic valve. The clock frequency may thus be optimally adapted to the properties of the hydraulic system, and a rapid response characteristic and a high adjustment precision are achieved.

    摘要翻译: 一种用于控制电磁阀的方法,特别是用于机动车辆的自动变速器。 利用已知的方法,用具有恒定时钟频率的脉冲宽度调制信号触发电磁阀。 本发明的目的是提供一种电磁阀的快速响应特性和高调节精度的方法。 使用电磁阀的液压系统的具体特性,特别是刚性和阻尼不是恒定的,而是在液压系统的不同操作状态和/或不同性能量的电磁阀下显着地变化。 这些不同的性质通过时钟频率的变化作为电磁阀的性能量的函数来考虑。 因此,时钟频率可以最佳地适应于液压系统的性质,并且实现了快速响应特性和高调节精度。

    Recycling materials comprising cellulosic and synthetic fibers
    4.
    发明授权
    Recycling materials comprising cellulosic and synthetic fibers 失效
    包括纤维素和合成纤维的回收材料

    公开(公告)号:US5521305A

    公开(公告)日:1996-05-28

    申请号:US314791

    申请日:1994-09-29

    摘要: Recycling materials comprising cellulosic and synthetic fibersDescribed is a process for recycling materials comprising fiber mixtures comprising cellulose fibers, comprising the steps of:i) providing fiber mixtures comprising cellulosic fibers and fibers composed of synthetic polymers, andii) subjecting these mixtures to a microbial hydrolysis in which the cellulosic fibers are completely degraded.The process makes it possible in particular to separate fiber mixtures. For this, the microorganisms and the hydrolyzate are removed in a conventional manner following step ii), and the remaining synthetic polymers are carried off in a conventional manner to be further recycled.

    摘要翻译: 包含纤维素和合成纤维的回收材料描述了一种用于回收包含纤维素纤维的纤维混合物的材料的方法,包括以下步骤:i)提供包含纤维素纤维和由合成聚合物组成的纤维的纤维混合物,和ii)将这些混合物经受微生物 纤维素纤维完全降解的水解。 该方法特别可以分离纤维混合物。 为此,在步骤ii)之后以常规方式除去微生物和水解产物,并且以常规方式将剩余的合成聚合物进一步进行再循环。

    Process for producing filaments and fibers of acrylic polymers which
contain carboxyl groups
    8.
    发明授权
    Process for producing filaments and fibers of acrylic polymers which contain carboxyl groups 失效
    用于生产含有羧基的丙烯酸聚合物的长丝和纤维的方法

    公开(公告)号:US4997610A

    公开(公告)日:1991-03-05

    申请号:US494875

    申请日:1990-03-08

    IPC分类号: D01F6/38

    CPC分类号: D01F6/38 Y10S526/93

    摘要: A fiber or filament of a swellable polymer of high tensile strength is made by spinning a polymeric raw material which is produced by agitating a suspension of solid particles of an acrylonitrile polymer in dilute sulfuric acid having an acid concentration between 40 to 50 percent by weight until the polymer is hydrolyzed to an extent that it contains from 10 to 30 percent by weight of carboxyl groups such that sticking of individual particles of the polymer to one another is avoided.

    摘要翻译: 具有高拉伸强度的可溶胀聚合物的纤维或长丝是通过纺丝聚合物原料制成的,所述聚合物原料是通过搅拌丙烯腈聚合物的固体颗粒的悬浮液而制成的,所述固体颗粒在酸性浓度为40至50重量%的稀硫酸中直至 聚合物被水解至其含有10至30重量%羧基的程度,从而避免了聚合物的单个颗粒彼此粘附。

    Filaments and fibers of acrylonitrile copolymer mixtures
    10.
    发明授权
    Filaments and fibers of acrylonitrile copolymer mixtures 失效
    丙烯腈共聚物混合物的丝和纤维

    公开(公告)号:US4383086A

    公开(公告)日:1983-05-10

    申请号:US154488

    申请日:1980-05-29

    IPC分类号: D01F6/54 C08L33/20

    CPC分类号: D01F6/54 Y10S525/931

    摘要: The invention relates to flame-retarding filaments and fibers and a process for the manufacture thereof. The filament-forming substance is a mixture of from 20 to 70 weight % of an acrylonitrile copolymer A containing at least 80 weight % of acrylonitrile units and from 0.3 to 20 weight % of other units copolymerizable with acrylonitrile, and from 80 to 30 weight % of an acrylonitrile copolymer B containing from 50 to 75 weight % of acrylonitrile units, from 25 to 45 weight % of vinyl chloride and/or vinylidene chloride units and from 0 to 5 weight % of other units copolymerizable with acrylonitrile.The filaments and fibers have a boil-off shrinkage of at least 20% and a knot strength of at least 10 cN/tex and are obtained by spinning the turbid solutions of the copolymer mixture, which however do not separate into components, in an aprotic solvent, and drawing of the filaments in a moderate ratio.

    摘要翻译: 本发明涉及阻燃长丝和纤维及其制造方法。 长丝形成物质是20至70重量%的丙烯腈共聚物A的混合物,其含有至少80重量%的丙烯腈单元和0.3至20重量%的可与丙烯腈共聚的其它单元,以及80至30重量% 的丙烯腈共聚物B,其含有50至75重量%的丙烯腈单元,25至45重量%的氯乙烯和/或偏二氯乙烯单元和0至5重量%的可与丙烯腈共聚的其它单元。 长丝和纤维具有至少20%的蒸发收缩率和至少10cN / tex的结强度,并且通过将共混物混合物的混浊溶液纺丝(然而不分离成组分)得到非质子传递 溶剂和长丝以适中的比例拉伸。