Metal-lined pressure vessel
AssigneeBrunswick Corporation
InventorCornelius F. Murray
Life of this patent
Estimating the term…
Abstract
A metal lined pressure vessel has a filament wound shell with a curved polar end. The shell has polar opening, and a metal internal liner is substantially surrounded by the shell and has an opening aligned with the polar opening in the shell. A boss or fitting is disposed at the polar end and has a tubular neck projecting through the opening in the shell and an annular flange which extends radially from an inner end of the neck within the vessel. A shear stress relieving layer is bonded between the boss and the metal liner to relieve stresses induced when the vessel is pressurized, and the liner is affixed to the boss continuously about the opening in the liner for isolating the layer from fluid in the vessel.
Claims15
A pressure vessel comprising:
- a filament wound shell having an opening therein;
- a metal liner substantially surrounded by the shell and having an opening having a perimeter aligned with the opening in the shell;
- a boss having a tubular neck projecting outwardly through the opening in the shell and an annular flange extending radially from an end of the neck within the vessel;
- interface means comprising a thin resilient shear accommodating layer forming a pliable connection between the boss and the metal liner for relieving stress induced when the vessel is pressurized;
- said boss annular flange having a pair of axially offset grooves which define a first step for seating the perimeter of the liner opening and a second step for seating said shear accommodating layer;
- and
- a sealing and attachment means continuously about the opening the metal liner and affixing the metal liner to the boss for isolating said interface means from fluid contained in the vessel.
In a pressure vessel having a composite housing defined by a metal liner substantially surrounded by a filament wound shell, the liner and the shell having aligned openings therein, each having a perimeter, and a boss having a tubular neck projecting outwardly through the opening in the shell and an annular flange extending radially from an end of the neck within the vessel, the improvement comprising:
- a pliable shear accommodating layer interface means between the liner and the boss to permit relative movement between the liner and the boss when the vessel is pressurized;
- said boss annular flange having a pair of axially offset grooves which define a first step for seating the perimeter of the liner opening and a second step for seating said shear accommodating layer;
- and
- a sealing and attachment means continuously about the opening in the metal liner and integrally affixing the metal liner to the boss for isolating the connection from fluid contained in the vessel.
A pressure vessel comprising:
- a filament wound shell having a dome vessel end with a polar opening therein;
- a metal liner substantially surrounded by the shell and having an opening having a perimeter aligned with the polar opening in the shell;
- a boss having a tubular neck projecting outwardly through the polar opening and an annular flange extending radially from an end of the neck within the vessel, the annular flange being integral with the metal liner and defining a first step for seating the perimeter of the liner opening and a second step;
- and
- a shear stress relieving layer disposed in said second step, the shear stress relieving layer being interconnected between the boss and the metal liner to accommodate relative slip therebetween during pressurization of the vessel.
Dependencies are inferred from the claim text.