High-pressure tank and method for fabricating the same
AssigneesSamtech Corporation, Samtech Internaional, Inc., Hypercomp Engineering, Inc.
InventorsTeppei Sakaguchi, Yoshiki Sakaguchi, Shaun C. Hogan
Life of this patent
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Abstract
An annular fitting recess is formed circumferentially in the exterior of a tank body in the vicinity of the boundary between a dome section and a cylindrical gas discharge section of the tank body. A cylindrical reinforcing collar is fitted onto the cylindrical gas discharge section of the tank body to fit an annular boss of the reinforcing collar in the fitting recess of the tank body and then engaged integrally on the exterior of the tank body between the cylindrical gas discharge section and the dome section by shrinkage. This provides easily and inexpensively a high-pressure tank capable of withstanding high pressures of 35 to 75 MPa while keeping its lightness in weight.
Claims4
A high-pressure tank comprising:
- a metallic tank body in which a cylindrical gas discharge section is protruded integrally from one end of a cylindrical middle section through a dome section and an annular fitting recess is formed circumferentially in the exterior of the tank body in the vicinity of the boundary between the dome section and the cylindrical gas discharge section;
- and
- a cylindrical metallic reinforcing collar having an annular boss and engaged integrally on the exterior of the tank body between the cylindrical gas discharge section and the dome section with the boss fitted in the fitting recess of the dome section through fitting of the reinforcing collar onto the cylindrical gas discharge section of the tank body.
A method for fabricating a high-pressure tank, comprising the steps of:
- plastically deforming a hollow cylindrical blank of metal with rotation to form a tank body in which a cylindrical gas discharge section is protruded integrally from one end of a cylindrical middle section through a dome section, followed by forming an annular fitting recess circumferentially in the exterior of the tank body in the vicinity of the boundary between the dome section and the cylindrical gas discharge section;
- and
- then fitting a cylindrical metallic reinforcing collar having an annular boss onto the cylindrical gas discharge section of the tank body to fit the boss in the fitting recess of the dome section and engaging the reinforcing collar integrally on the exterior of the tank body between the cylindrical gas discharge section and the dome section by shrinkage.
Dependencies are inferred from the claim text.