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    • 55. 发明授权
    • Liquid crystal dielectric
    • 液晶电介质
    • US4818431A
    • 1989-04-04
    • US933953
    • 1986-11-24
    • Rudolf EidenschinkJoachim KrausePeter Fuss
    • Rudolf EidenschinkJoachim KrausePeter Fuss
    • C07D309/04C07D309/06C07D309/10C07D309/30C07D407/04C09K19/34C09K19/46G02F1/13C07D309/08C07D405/06C07D407/02
    • C07D407/04C07D309/04C07D309/06C07D309/30C09K19/3402C09K19/3441C09K19/3472C09K2019/3422
    • New tetrahydropyran derivatives of the formula I ##STR1## in which G is H.sub.2 or .dbd.O, R.sup.1 and R.sup.2 are each an alkyl group having 1-10 C atoms, it also being possible for one or two CH.sub.2 groups to be replaced by O atoms, or are F, Cl, Br or CN, R.sup.2 is also H, A.sup.1 and A.sup.2 are each 1,4-phenylene, 1,4-cyclohexylene, 1,3-dioxane-2,5-diyl, piperidine-1,4-diyl, 1,4-bicyclo[2.2.2]octylene or pyrimidine-2,5-diyl groups which are unsubstituted or substituted by 1-4 F atoms, Z.sup.1 and Z.sup.2 are each --CO--O--, --O--CO--, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 --, --CH.sub.2 O--, or a single bond, m and n are each 0, 1, 2 or 3, but (m+n) is at least 1 and at most 3, it being possible, when m is 2 or 3, for the group A.sup.1 and, when n is 2 or 3, for the groups A.sup.2 each to be identical or different from one another, and the acid addition salts of those among these compounds which are basic, are suitable for use as components in liquid-crystal dielectrics.
    • 其中G为H 2或= O,R 1和R 2的式I的新的四氢吡喃衍生物各自为具有1-10个C原子的烷基,也可以将一个或两个CH 2基团替换为O 或者是F,Cl,Br或CN,R2也是H,A1和A2分别是1,4-亚苯基,1,4-亚环己基,1,3-二恶烷-2,5-二基,哌啶-1, 未被取代或被1-4个F原子取代的4-二基,1,4-二环[2.2.2]辛烯或嘧啶-2,5-二基,Z 1和Z 2各自为-CO-O-,-O- CO-,-CH 2 CH 2 - , - OCH 2 - , - CH 2 O-或单键,m和n各自为0,1,2或3,但(m + n)为至少1且最多为3, 当m为2或3时,对于基团A1,当n为2或3时,对于各自彼此相同或不同的基团A2,并且这些化合物中的碱加成盐, 适用于液晶电介质中的组分。
    • 60. 发明授权
    • Switchable finger lever
    • 可切换手指杆
    • US08607753B2
    • 2013-12-17
    • US13307339
    • 2011-11-30
    • Joachim KrauseStefan GemeinRonny Gunnel
    • Joachim KrauseStefan GemeinRonny Gunnel
    • F01L1/18
    • F01L1/185F01L13/0036F01L2001/186F01L2103/00F01L2105/00F01L2800/10F02M26/01
    • A switchable finger lever for a valve drive of an internal combustion engine having an interior lever encompassed by arms of an exterior lever, with a joint axle extending through the levers so they are relatively pivotal. A stub projects from the axle at each exterior side, with the respective stub being encompassed by a coil section of a pivot pin spring, having one leg acting upon the exterior lever and another leg acting upon the interior lever to pre-load the levers relative to each other, with the coil section encompassing a bush encasing an exterior casing of the stub. The bush encompasses the stub with a clearance fit and, for fixation of the axle, an annular groove with a safety ring is located inside the bush bore, and engages a radially inwardly located groove in the exterior casing of the stub allowing the axle to be disassembled without destruction.
    • 一种用于内燃机的阀驱动器的可切换指杆,其具有由外部杠杆的臂包围的内部杠杆,其中连接轴延伸穿过杠杆,使得它们相对枢转。 短轴从每个外侧的轴突出,相应的短截线由枢轴销弹簧的线圈部分包围,其中一个腿作用在外部杠杆上,另一个腿作用在内部杠杆上以预加载相对的杠杆 彼此相对,线圈部分包围包围短截线外壳的衬套。 衬套包括具有间隙配合的短截线,并且为了固定轴,具有安全环的环形槽位于衬套孔内部,并且与衬套的外部壳体中的径向向内定位的凹槽接合,允许轴为 拆卸而不破坏。