公开(公告)号：SG148887A1

公开(公告)日：2009-01-29

申请号：SG2007045362

申请日：2007-06-19

Applicant: SINGAPORE TECHNOLOGIES AEROSPACE LTD

Inventor： JESUDASON CHRISTIAN JEFFREY ,  TAN KAI CHYE RICHARD ,  KHIM ONG LAY ,  HONG GOH SWEE

Abstract: A Device, System and Method for Hydraulic Pressure Testing A Device, System and Method for Hydraulic Pressure Testing. The Device is a Precision Pressure Hydraulic Adjuster (PPHA) comprising a housing; a fluid orifice extending through said housing for providing a connectionto an external fluid reservoir; and an adjustment mechanism comprising a threaded section having a first end threaded into an adjustment mechanism chamber within said housing and a second end extending outwardly from said housing, and a plunger coupled to said first end of said threadedsection, said threaded section extending into a fluid chamber within said housing and defining an effective volume within said fluid chamber, said fluid chamber having a smaller cross- sectional area than said adjustment mechanism chamber and being connected to said fluidorifice; wherein rotating said threaded section with respect to said housing provides a linear movement of said plunger in said fluid chamber to change said effective volume for adjusting and maintaining a pressure in the external fluid reservoir.