Wyniki wyszukiwania - Biblioteka Nauki

Ten serwis zostanie wyłączony 2025-02-11.

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Life tests of a rotary single-stage magnetic-fluid seal for shipbuilding applications

100%

Matuszewski L. , Szydlo Z.

nr 2

Use of the magnetic ﬂuid seal technology in water is much more difﬁcult technological problem in comparison to gas or vacuum environment. Some seals constructed up to time been are designed as hybrid, two stage sealing structures with shields or mechanical seals used as protection measures to the magnetic ﬂuid seal. Anyway, there is always problem with immediate contact between magnetic ﬂuid and the environmental liquid. In the paper are presented results of experiments carried out with one stage rotating magnetic ﬂuid seal operating in immediate contact with utility water. The special test procedures have been elaborated and practically used, with the aim to deﬁne main characteristics of magnetic ﬂuid seals and to simplify experiments. These characteristics were: critical pressure, critical motion velocity and working life of the seal. Four grades of commercial, silicon based magnetic ﬂuids of hydrophobic properties were tested in a single stage sealing system. The results of tests are presented in the form of tables and diagrams. It is concluded that hydrophobic commercial magnetic ﬂuids could be efﬁciently used in rotating shaft seals however in a limited range of motion velocity

Charakterystyka suszarnicza torfu

100%

Szarycz M. , Szydlo Z.

tom 287

Experimental research on effectiveness of the magnetic fluid seals for rotary shafts working in water

100%

Szydlo Z. , Matuszewski L.

nr 4

This paper presents course of research on ferro-fluidal seals used in water. The tests were carried out fora hydrophobic magnetic fluid and specially selected profiles of sealing lips at various linear velocitiesin sealing unit. Though the tests were preliminary their results showed that the research on application of magnetic fluids to seals working in liquid environment should be continued. From the point of view ofdevelopment of ring drives the most important advantage of ferro-fluidal seals is their smallest drag ascompared with seals of other types