Fully powered flight controls are common among many aircraft, both military and commercial. Multiple pumps are generally employed to provide these flight controls with a redundant power source in addition to many other aircraft services. The prime hydraulic source in most cases is the engine-driven pump. It is driven directly by one of the aircraft's engines and offers the most efficient method of converting engine horsepower to hydraulic horsepower. The secondary hydraulic power source is generally not as efficient. It must derive its power from a source other than that which powers the prime pump. Present transport aircraft have utilised bleed air, ram air, electrical power, or hydraulic power to drive this redundant pump. All have demonstrated poor power-transfer efficiency when compared to a mechanically coupled pump. This inefficiency generally results in increased cost, weight, and complexity to the aircraft. The inadequate performance of existing hydraulic power transfer units was of particular concern. This paper will address the performance problem as well as the Douglas approach to improve it.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    High Efficiency Hydraulic Power Transfer Units for Multisystem Aircraft


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    01.09.1980


    Format / Umfang :

    5 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    AIRCRAFT APPLYING MULTISYSTEM CONNECTION DEVICES

    LE LOUARN AMELIE / THALIN PASCAL | Europäisches Patentamt | 2015

    Freier Zugriff

    Aircraft hydraulic units

    Oates, J.A. | Engineering Index Backfile | 1945


    Hydraulic Power Units for Supersonic Aircraft

    Lambeck, R. P. | SAE Technical Papers | 1967