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Multiple Stage Pressure Device

IP.com Disclosure Number: IPCOM000093007D
Original Publication Date: 1967-Apr-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 84K

Publishing Venue

IBM

Related People

Taranko, AR: AUTHOR

Abstract

This high pressure exerting device overcomes the limitations of the strength of the pressure vessel walls by applying an inward supporting hydrostatic force on such walls to counteract the internal force which would otherwise burst the cylinder. By several stages of cylinders nested one within the other but separated by a suitable fluid each under a controlled pressure, the pressure in each successive stage can be increased. Such occurs without exceeding the ultimate tensile strength of the cylinder walls. The advantage is that thinner materials can be utilized for creating pressure chambers than those used in existing methods.

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Multiple Stage Pressure Device

This high pressure exerting device overcomes the limitations of the strength of the pressure vessel walls by applying an inward supporting hydrostatic force on such walls to counteract the internal force which would otherwise burst the cylinder. By several stages of cylinders nested one within the other but separated by a suitable fluid each under a controlled pressure, the pressure in each successive stage can be increased. Such occurs without exceeding the ultimate tensile strength of the cylinder walls. The advantage is that thinner materials can be utilized for creating pressure chambers than those used in existing methods.

The pressure directed outward on the internal walls of cylinder 20 can be assumed to be very high. Such pressure in well 21 would ordinarily break the walls, but the pressure of about half of such an extent exists in space 22. Such pressure is generated there by screw 23 compressing hydraulic fluid, such as mercury in space 22, and acting inwardly on the walls of cylinder 20 to support them and oppose the internal pressure in 21 imposed also by screw 24. The resultant outward pressure tending to break the cylinder is therefore only half what it would be if unopposed and can easily be held by a hardened alloy steel.

In a like manner, the pressure directed outward on the internal walls of cylinder 25 is high enough to ordinarily break them. However, the pressure in space 26 generated by screws 27 and 28 compres...