Coolant comprising azole derivatives for cooling systems in fuel-cell drives
    48.
    发明授权
    Coolant comprising azole derivatives for cooling systems in fuel-cell drives 有权
    包含用于在燃料电池驱动器中冷却系统的唑衍生物的冷却剂

    公开(公告)号:US07419617B2

    公开(公告)日:2008-09-02

    申请号:US11253754

    申请日:2005-10-20

    Abstract: Methods for cooling a fuel cell include providing in a fuel cell coolant system an aqueous fuel cell coolant composition having an initial electrical conductivity of at most 50 μS/cm. The fuel cell coolant compositions include an alkylene glycol and water solution, and an additive consisting of one or more five membered heterocyclic compounds (azole derivatives) having 2 or 3 heteroatoms selected from the group consisting of nitrogen and sulfur, which contain no or at most one sulfur atom and which may carry a fused aromatic or saturated six-membered ring, and an orthosilicate in an amount to provide a silicon content of from 2 to 2000 ppm by weight.

    Abstract translation: 用于冷却燃料电池的方法包括在燃料电池冷却剂系统中提供具有至多50μS/ cm的初始电导率的水性燃料电池冷却剂组合物。 燃料电池冷却剂组合物包括亚烷基二醇和水溶液,以及由一种或多种具有2或3个选自氮和硫的杂原子的五元杂环化合物(唑衍生物)组成的添加剂,其不含或最多 一个硫原子,并且其可以携带稠合芳族或饱和六元环,并且原硅酸盐的量可以提供2至2000重量ppm的硅含量。

    Method and device for cooling an internal combustion engine
    49.
    发明授权
    Method and device for cooling an internal combustion engine 失效
    用于冷却内燃机的方法和装置

    公开(公告)号:US07409927B2

    公开(公告)日:2008-08-12

    申请号:US10512092

    申请日:2003-05-16

    CPC classification number: F01P11/06 F01P2011/066

    Abstract: The invention relates to a method and a device for cooling an internal combustion engine. An aqueous, non-ionic coolant composition is used in a cooling circuit (14) of the internal combustion engine (11). In order to also ensure long-lasting protection against corrosion for light metal components of the engine that come into contact with the coolant, e.g. components made of magnesium or magnesium alloys, the cooling circuit has at least one deionization device (28), for example, an ion exchanger, for the coolant.

    Abstract translation: 本发明涉及一种用于冷却内燃机的方法和装置。 水性非离子型冷却剂组合物用于内燃机(11)的冷却回路(14)。 为了确保与冷却剂接触的发动机的轻金属部件的耐久性保护,例如防止腐蚀。 由镁或镁合金制成的部件,冷却回路具有用于冷却剂的至少一个去离子装置(28),例如离子交换器。

    Cooling agents for cooling systems in fuel cell drives
    50.
    发明授权
    Cooling agents for cooling systems in fuel cell drives 有权
    燃料电池驱动器冷却系统的冷却剂

    公开(公告)号:US07393464B2

    公开(公告)日:2008-07-01

    申请号:US10450943

    申请日:2001-12-14

    Abstract: The invention relates to antifreeze concentrates for cooling systems in fuel cell drives, from which are produced ready-to-use aqueous cooling agent compositions having a maximum conductivity of 50 μs/cm, based on alkylene glycols or the derivatives thereof, and containing orthosilicic acid esters of formula (I) wherein the variables R1 to R4 are the same or different and represent C1-C20 alkyl substituents, C2-C20 alkenyl substituents, C1-C20 hydroxyalkyl substituents, optionally substituted C6-C12 aryl substituents and/or glycol ether substituents of formula (CH2—CH2—O)n—R5 wherein R5 represents hydrogen or C1-C5 alkyl and n represents a number between 1 and 5

    Abstract translation: 本发明涉及用于燃料电池驱动器中的冷却系统的防冻浓缩物,基于亚烷基二醇或其衍生物,其中产生具有50 mus / cm的最大导电率的即用型水冷却剂组合物,并且含有正硅酸 其中变量R 1至R 4的式(I)的酯相同或不同,表示C 1 -C 20 C 1 -C 20烷基取代基,C 2 -C 20链烯基取代基,C 1 -C 20羟基烷基取代基 ,任选取代的C 6 -C 12芳基取代基和/或式(CH 2 CH 2 -CH 2)芳基取代基和/或二醇醚取代基, 其中R 5表示氢或C 1 -C 3 - ,其中R 5表示氢或C 1 -C 3 - 5烷基,n表示1〜5的数

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