Leak-Free, Seal-Less Mag-Drive Pump for Critical Applications
7/22/2011
A magnetically driven micro annular gear pump, which is ideally suited to handling liquids in critical metering applications where reliable, leak-free pumping is essential, has been introduced by MICHAEL SMITH ENGINEERS. The ultra-compact HNP MZR 4661 pump is designed for OEM's and small system builders who require a pump to deliver precise, pulseless flows from 4.8 ml/min up to 72 ml/min on system pressures up to 6 bar.
This pump benefits from a hermetic design incorporating a powerful inner magnet system driven by a rotating magnetic field and an integrated speed control. However, the pump is very compact with a diameter of just 22mm, a length of 69mm and weighs only 100g. Although compact and lightweight the MZR 4661 is built to ensure a long service life thanks to the use of wear-resistant, ultra-hard materials including stainless steel, ceramics and NdFeB-magnets.
Fuel cell operations are one particular application where these pumps will be appreciated, on metering tasks for water, ethanol, methanol and other fuels occurring in these industries. Other applications include Ad-Blue injection into catalytic converters for diesel engines to reduce emissions and also dialysis and other similar medical device applications.
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Mind, he declares, is an attribute everywhere accompanying matter, co-extensive and co-infinite with space. Our own animation is the sum or the resultant of an animation clinging to every particle that enters into the composition of our bodies. When our thoughts are affected by an external impulse, to suppose that this impulse proceeds from anything material is a delusion; it is produced by the mind belonging to the body which acts on our body; although in what sense this process is to be understood remains a mystery. Spinoza has clearly explained the doctrine of animal automatism, and shown it to be perfectly conceivable;569 but he has entirely omitted to explain how the parallel influence of one thought (or feeling) on another is to be understood; for although this too is spoken of as a causal relation, it seems to be quite different from the logical concatenation described as the infinite intellect of God; and to suppose that idea follows from idea like movement from movement would amount to a complete materialisation of mind; while our philosopher would certainly have repudiated Mr. Shadworth Hodgson’s theory, that states of consciousness are only connected through their extended substratum, as the segments of a mosaic picture are held together by the underlying surface of masonry. Nor can we admit that Spinoza entertained the theory, now so popular, according to which extension and consciousness are merely different aspects of a single reality. For this would imply that the substance which they manifest had an existence of its own apart from its attributes; whereas Spinoza makes it consist of the attributes, that is to say, identifies it with their totality. We are forced, then, to conclude that the proposition declaring thought and extension to be the same thing570 has no413 other meaning than that they are connected by the double analogy which we have endeavoured to explain. “Oh, he’s welcome to it,” Sandy cried. “I’ve turned over a new leaf!” “But—are they?” He pulled a wire out a trifle from the sheath. The sergeant spent more time upon the oaths with which he embellished the counter-question as to how he should know anything about it, than would have been consumed in a civil explanation. "Doctor, he can't die. He mustn't die," said Shorty in agony. "The regiment can't spare him. He's the best soldier in it, and he's my pardner." AND ENTERS UPON HIS PARENTAL RELATIONS TO LITTLE PETE SKIDMORE. 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