Cryptographically secure electric fuel pump system
    3.
    发明授权
    Cryptographically secure electric fuel pump system 失效
    密封安全电动燃油泵系统

    公开(公告)号:US5600723A

    公开(公告)日:1997-02-04

    申请号:US362722

    申请日:1994-12-23

    Abstract: A vehicle anti-theft system in the form of a mechanically interengagable electronic key and lock includes stored key and vehicle identifiers in both the key and in the lock. A random number is generated in the lock each time the vehicle ignition switch is closed and that random number is used to encode one of the identifiers for transmission to the key. The key uses the corresponding stored identifier to recover the random number. The other stored identifier is then encoded using the recovered random number and the encoded other identifier is returned to the lock. The lock uses the generated random number to recover the second identifier for comparison to its stored value. If the comparison fails, vehicle operation is prevented. The system may effect several trials, each using a new random number before refusing further attempts. The lock electronics is preferably disposed in the vehicle fuel tank and controls operation of the vehicle fuel pump.

    Abstract translation: 机械可互相接合的电子钥匙和锁的形式的车辆防盗系统包括钥匙和锁中的存储钥匙和车辆标识符。 每当车辆点火开关闭合时,在锁中产生一个随机数,并且使用该随机数来对其中一个标识符进行编码以传输给钥匙。 密钥使用相应的存储标识符来恢复随机数。 然后使用恢复的随机数对另一个存储的标识符进行编码,并且将编码的其他标识符返回到锁。 锁使用生成的随机数来恢复第二个标识符,以便与其存储的值进行比较。 如果比较失败,则防止车辆操作。 该系统可能会影响几项试验,每次尝试使用新的随机数,然后拒绝进一步尝试。 锁定电子装置优选地设置在车辆燃料箱中并控制车辆燃料泵的操作。

    Anti-static fuel filter
    5.
    发明授权
    Anti-static fuel filter 失效
    防静电燃油滤清器

    公开(公告)号:US5085773A

    公开(公告)日:1992-02-04

    申请号:US609569

    申请日:1990-11-06

    CPC classification number: F02M37/22 B01D29/03 B01D35/02 B01D2201/50

    Abstract: A fuel filter for the fueling system of a motor vehicle has a non-conductive housing defining a chamber in which porous sintered plastic discs are mounted transversely across the chamber defined by the housing. The discs are of graduated porosity, and tend to strip electrons from the hydrocarbon paraffin of which the fuel consists. The charges generated by the stripping are neutralized by the positive ions generated by an adjacent disc.

    Abstract translation: 用于机动车辆的燃料供给系统的燃料过滤器具有限定室的非导电壳体,其中多孔烧结塑料盘横向安装在由壳体限定的腔室上。 圆盘具有渐变孔隙度,并且倾向于从燃料组成的烃石蜡中剥离电子。 由剥离产生的电荷被相邻盘产生的正离子中和。

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