1984 Cilt 1 Sayı 1

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Browsing by Subject "Elektrohidraulic control valves"

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    Elektro-hidrolik aç-kapa (on-off) valflar
    (Uludağ Üniversitesi, 1984) Yüksel, İbrahim; Uludağ Üniversitesi/Mühendislik Fakültesi.
    This paper describes elektrohydraulic systems and elektro-hidraulic control valves used in these sys­tems. Especially, operations of new developing on-off digital electro-hydraulic systems, which could be used in digital electro-hydraulic systems, have been investigated. Furthermore, on-off type of free floating disc valves are described. The single-dise valve, while having the merit of simplicity, was found to have a signifıcant steady state power loss when using a 25 mm diameter dics size. Due to this, lts main application is thought to be as a miniature pilot or first stage valve, as it could be manufactured to less than half the present size. The double-dise valve, while being more complex, has the important advantages of no quiescent power loss and low sensitivity to particle contamination