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    • 3. 发明申请
    • FUEL CAP LEAKAGE TESTER
    • 燃油泄漏测试仪
    • WO1997008528A2
    • 1997-03-06
    • PCT/US1996013415
    • 1996-08-16
    • HARRIS, Robert, S.
    • G01M00/00
    • G01M3/26G01M3/3263
    • A fuel cap leakage tester including a first and a second passage having equal restrictions connected to an inlet which receives a source of pressure. A restriction is placed at the outlet of first passage and the cap to be tested is placed at the outlet of the second passage. An indicator is connected to the first passage between the inlet and outlet restrictions and to the second passage between the inlet restriction and the outlet for indicating if the leakage at the outlet with the cap therein is greater or less than the flow rate of the other outlet restriction. The other outlet restriction is set to the desired standard.
    • 一种燃料盖泄漏测试器,包括具有与接收压力源的入口相等的限制的第一和第二通道。 在第一通道的出口处设置限制,并且待测试的盖子被放置在第二通道的出口处。 指示器连接到入口和出口限制之间的第一通道,并且连接到入口限制和出口之间的第二通道,用于指示出口处的盖子中的泄漏是否大于或小于另一个出口的流量 限制。 另一个出口限制设置为所需的标准。
    • 4. 发明申请
    • METHOD ADN APPARATUS FOR ENGINE TESTING
    • 发动机试验方法ADN装置
    • WO1997007386A2
    • 1997-02-27
    • PCT/US1996012923
    • 1996-08-06
    • CHEVRON U.S.A. INC.
    • CHEVRON U.S.A. INC.DEROUEN, EdwardFRANOVICH, Keith, I.
    • G01M00/00
    • G01B11/14G01M15/00Y10S33/15Y10S33/17
    • The invention relates to a method of and apparatus for determining the clearance between wear surfaces of a reciprocating piston engine and the surrounding cylindrical bore of the engine block, without need for physical contact with the piston. As particularly distinguished from the prior art, the present invention employs an energy wave source, collimated to impinge against selectable portions of the piston head either during its reciprocation, or at rest, in the so-called combustion or compression chamber between the moving piston and the engine cylinder. The energy source may be optical, electro-optical, acoustico-optical, or electromagnetic, generating continuous waves or high frequency pulses, or which are capable of reflecting such energy back to a plurality of detectors. Such detectors are capable of measuring exceptionally high frequency (short wave lengths) signals to measure time (and hence distance) from the source to the piston head back to the detector. Advantage is particularly taken of multiple reflection points and multiple detectors to generate composite signals or to separately record individual signals which are then processed to identify the location as well as the distance of any of several different friction areas relative to the source.
    • 本发明涉及一种用于确定往复活塞发动机的磨损表面与发动机缸体的周围圆柱形孔之间的间隙的方法和装置,而不需要与活塞物理接触。 与现有技术特别区分,本发明采用能量波源,准直地在活塞头的往复运动期间或在静止时与活塞头的可选择部分相撞,在所谓的燃烧或压缩室中移动活塞和 发动机气缸。 能量源可以是光学,电光学,声光学或电磁学,产生连续波或高频脉冲,或者能够将这种能量反射回多个检测器。 这种检测器能够测量异常高频(短波长)信号,以测量从源到活塞头返回到检测器的时间(并因此距离)。 特别是采用多个反射点和多个检测器来产生复合信号的优点,或者单独地记录单独的信号,然后将这些信号进行处理以识别几个不同的摩擦区域相对于源的位置以及距离。