EFFECT OF PRESSURE ON HYDRAULIC CONTROL VALVE LEAKAGE

Submarine hydraulic control valves have traditionally had extremely strict requirements for internal leakage as a result of specifications which mandated that the hydraulic systems be exceptionally tight. These requirements have been relaxed somewhat on later submarine designs, and as hydraulic systems have become larger, control valve leakage has become a significant part of the hydraulic power plant load. Procedures have been established to periodically monitor system tightness to ensure that control valve leakage does not become excessive. In order to provide accurate maintenance recommendations, leakage data must be normalized to allow for comparisons and trending. Temperature has been shown to have a significant effect on leakage, and this effect is well documented in Navy technical manuals. Pressure is known to have a significant effect on leakage, but the nature of this effect is not widely understood. This report explores empirical and analytical correction techniques for analyzing and normalizing control valve leakage by testing submarine hydraulic control valves with different types of oil at various pressures. The oils and pressures are representative of the internal and external hydraulic systems on submarines.

  • Supplemental Notes:
    • Conference paper
  • Corporate Authors:

    Taylor, W. S.

    , ZZ N/A   
  • Authors:
    • Richmond, M H
    • Freeman, A E
  • Conference:
  • Publication Date: 0

Media Info

  • Features: References;
  • Pagination: 5p.

Subject/Index Terms

Filing Info

  • Accession Number: 00655996
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM