摘要:
The invention relates to a method to analyze the condition of a functional fluid comprising: (1) obtaining a sample of the used fluid; (2) placing the sample of the fluid to a test medium; (3) reacting the fluid with an indicator in the test medium; (4) analyzing visually the results of the reactor resulting in the determination of the condition of the fluid. Further an apparatus for analyzing functional fluids is disclosed in the form of a test medium consisting of an absorbent or nonabsorbent material which has been treated with a chemical indicator, marker substance or a developer or detector reagent upon which a sample of the fluid to be tested is placed. The components in the treated test medium react with components in the test fluid providing a visual indication, for example a color change, to judge the condition, the presence of a marker substance or another parameter of the fluid. The functional fluid may be a lubricant, fuel or other functional fluid of innumerable sources, including internal combustion engines, turbines, transmissions, differentials, pumps, metalworking operations, cooling systems, etc, and be either organic solvent or aqueous based.
摘要:
A composition of a major amount of an oil of lubricating viscosity; a secondary or tertiary amine being represented by the formula R1R2NR3 wherein R1 and R2 are alkyl groups of at least 6 carbon atoms and R3 is hydrogen, a hydrocarbyl group, a hydroxyl-containing alkyl group, or an amine-containing alkyl group; and a dispersant, provides high static coefficients of friction and a durable positive slope during oxidative and mechanical stressing, particularly as a friction component of an automatic transmission.
摘要:
Methods and apparatus for performing Distributed Acoustic Sensing (DAS) using fiber optics with increased acoustic sensitivity are provided. Acoustic sensing of a wellbore, pipeline, or other conduit/tube based on DAS may have increased acoustic sensitivity through fiber optic cable design and/or increasing the Rayleigh backscatter property of a fiber's optical core. Some embodiments may utilize a resonant sensor mechanism with a high Q coupled to the DAS device for increased acoustic sensitivity.
摘要:
The disclosure is directed to a rope clamping device, which is made up of the following elements: a central bar, two threaded bolts, two grooved wheels, two large clamps, eight metal washers, and four nuts. The device allows a rope, chain, or cable to pass over a grooved wheel, wherein the rope is held securely when a clamp is released onto the grooved wheel. There is a second clamp and grooved wheel on the opposing side of the device. When both clamps have engaged the rope, chain or cable, the loop of rope, chain or cable is held securely. This is done to serve as an alternative to traditional knot tying in order to quickly and easily secure an object with a rope, chain or cable.
摘要:
The invention provides a method of lubricating containing: (a) employing a first functional fluid, (b) adding or contacting the first functional fluid with a controlled release gel wherein the controlled release gel has the desired additives to be released imparting the desired properties into the first functional fluid which is for lubricating a mechanical device; and/or adding a delivery system with the desired additives for a second functional fluid; (c) releasing the desired additives from the delivery system into the first functional fluid resulting in the first functional fluid changing into a second functional fluid, with the proviso that the second functional fluid is different from the first functional fluid.
摘要:
An apparatus in one example comprises an Internet Protocol telephone set accommodating at least first and second Internet Protocol addresses, wherein at least first and second sets of configuration parameters associated with the first and second Internet Protocol addresses are stored in the telephone set, and one of the first and second sets of configuration parameters is applied to a selected telephone line.
摘要:
A computer implemented method is provided for interactive application of constraints to sub-circuits in a circuit design stored in a computer readable medium, comprising: receiving from a first designer a selection of a sub-circuit; receiving from the first designer a constraint; producing an information structure in computer readable medium that associates a graph representing a topology of the selected sub-circuit with the received constraint; using the graph to identify sub-circuit instances in the circuit design having the same topology as the selected sub-circuit; receiving from a second designer a selection of the information structure; presenting to the second designer one or more of the identified sub-circuit instances and the received constraint; and receiving from the second designer instruction as to application of the received constraint to one or more of the presented sub-circuit instances.
摘要:
An additive composition comprises (A) an additive comprising a nitrogen-containing detergent, a fatty acid based friction modifier, or a mixture thereof and (B) a solid organic matrix material where the additive composition is a solid that melts in the range of about 25 to about 200° C. A method to enhance performance of a functional fluid, especially a fuel composition or power transmission fluid of a vehicle powered by an internal combustion engine, comprises adding a performance-enhancing amount of the additive composition to the functional fluid.
摘要:
A composition of a major amount of an oil of lubricating viscosity; a secondary or tertiary amine being represented by the formula R1R2NR3 wherein R1 and R2 are alkyl groups of at least 6 carbon atoms and R3 is hydrogen, a hydrocarbyl group, a hydroxyl-containing alkyl group, or an amine-containing alkyl group; and a dispersant, provides high static coefficients of friction and a durable positive slope during oxidative and mechanical stressing, particularly as a friction component of an automatic transmission.