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    • 6. 发明授权
    • High temperature pressurized high frequency testing rig and test method
    • 高温加压高频试验台及试验方法
    • US06546782B1
    • 2003-04-15
    • US09669270
    • 2000-09-25
    • Jose De La CruzPaul Lacey
    • Jose De La CruzPaul Lacey
    • G01N356
    • G01N3/56G01N19/02G01N33/30G01N2203/0226G01N2203/0232
    • An apparatus is described which permits the lubricity of fuel compositions at or near temperatures and pressures experienced by compression ignition fuel injector components during operation in a running engine. The apparatus consists of means to apply a measured force between two surfaces and oscillate them at high frequency while wetted with a sample of the fuel composition heated to an operator selected temperature. Provision is made to permit operation at or near the flash point of the fuel compositions. Additionally a method of using the subject apparatus to simulate ASTM Testing Method D6079 is disclosed, said method involving using the disclosed apparatus to contact the faces of prepared workpieces under a measured load, sealing the workface contact point into the disclosed apparatus while immersing said contact point between said workfaces in a lubricating media to be tested, pressurizing and heating the chamber and thereby the fluid and workfaces therewithin, using the disclosed apparatus to impart a differential linear motion between the workpieces at their contact point until a measurable scar is imparted to at least one workpiece workface, and then evaluating the workface scar.
    • 描述了一种装置,其允许在运行的发动机中操作期间燃料组合物的润滑性在或接近压缩点火燃料喷射器部件所经历的温度和压力附近。 该装置包括在两个表面之间施加测量的力并在高频下振荡它们的装置,同时用加热到操作者选择的温度的燃料组合物的样品润湿。 规定允许在燃料组合物的闪点附近操作。 此外,公开了使用本发明装置来模拟ASTM测试方法D6079的方法,所述方法包括使用所公开的装置在测量的负载下接触准备的工件的面,将工作面接触点密封到所公开的装置中,同时浸入所述接触点 在要测试的润滑介质中的所述接合面之间,对所述腔室进行加压和加热,从而使其中的流体和接合面在其中,使用所公开的装置在其接触点处给予工件之间的差分线性运动,直到至少给出可测量的疤痕 一个工件工作面,然后评估工件表面的疤痕。
    • 8. 发明授权
    • High temperature diesel deposit tester
    • 高温柴油沉淀试验机
    • US06370946B1
    • 2002-04-16
    • US09563170
    • 2000-05-02
    • Paul LaceyJose De La CruzEliazar H. SaucedoJack Russell Compton
    • Paul LaceyJose De La CruzEliazar H. SaucedoJack Russell Compton
    • G01N1100
    • G01N5/02G01N33/22
    • A method and apparatus for determining the propensity of fuel materials to leave deposits in compression ignition engines is disclosed. The apparatus consists of a closed chamber fitted with conduits to supply fuel composition, air, and other test fluids to its interior, and arranged to contain or substantially contain a substrate. Substrate is placed in the chamber to provide interaction between a fluid passing through and the substrate. Substrate may be a monolithic machined element or a collection of discrete bodies. The chamber conduits are connected to at least two metering devices, one controlling fuel and one air flow, whereby the substrate is exposed to measured quantities of fuel compositions and air. Heating devices are in thermal communication with the substrate and the source of air provided to the chamber, thus providing a method of controlling the temperature of the substrate and air flowing through the chamber. The propensity of a fuel composition to form deposits in an engine is determined by alternatively dispersing fuel composition and hot air upon the heated substrate then determining the mass of the deposits left on the substrate.
    • 公开了一种用于确定燃料材料在压燃式发动机中离开沉积物的倾向的方法和装置。 该装置由装有导管的封闭室组成,以将燃料组合物,空气和其它测试流体供应到其内部,并且布置成容纳或基本上容纳基底。 将基板放置在室中以提供通过流体和基底的流体之间的相互作用。 基材可以是单片加工元件或离散体的集合。 室导管连接到至少两个计量装置,一个控制燃料和一个空气流,由此基板暴露于测量量的燃料组成和空气中。 加热装置与衬底和提供给腔室的空气源热连通,从而提供一种控制衬底和流过腔室的空气的温度的方法。 燃料组合物在发动机中形成沉积物的倾向通过将燃料组合物和热空气交替地分散在加热的基底上,然后确定留在基底上的沉积物的质量来确定。