1126 results about "High pressure chamber" patented technology

A reusable shell casing having a housing with exterior grooves having a substantially central bore with a tapered end capable of receiving a payload and an opposite threaded end adapted to receive a novel reusable high pressure chamber assembly containing a removable powder chamber, a burst disk, and a threaded insert. The chamber assembly has a central bore having an upper bore portion that is cylindrically shaped having a threaded surface adapted to secure to the threaded portion of a threaded insert. The central bore also has a lower bore portion that is cylindrically shaped having a surface that is adapted to closely contour the circumference of the removable powder chamber. The powder chamber has a primary end having a primary opening adapted to receive a propellant located opposite a secondary end having a protrusion. The protrusion has a secondary opening adapted to receive a primer.

A high pressure chamber comprises a chamber housing, a platen, and a mechanical drive mechanism. The chamber housing comprises a first sealing surface. The platen comprises a region for holding the semiconductor substrate and a second sealing surface. The mechanical drive mechanism couples the platen to the chamber housing. In operation, the mechanical drive mechanism separates the platen from the chamber housing for loading of the semiconductor substrate. In further operation, the mechanical drive mechanism causes the second sealing surface of the platen and the first sealing surface of the chamber housing to form a high pressure processing chamber around the semiconductor substrate.

Systems and methods for performing a stepwise depressurization of a high-pressure fluid (liquid) filled chamber are shown and described. At least two valves are controllably opened and closed in a sequence to release a predetermined amount of pressure from the high-pressure chamber. At least some of the pressurized fluid released from the high-pressure chamber is stored, at least temporarily, in a second pressure chamber. The second pressure chamber is located between the two controllable valves. A control system controls the valves in response to a signal from at least one pressure sensor coupled to the high-pressure chamber. Additional components can be included in the system such as a pressure intensifier and a high-pressure pump, both coupled to the high-pressure chamber, and at least one other pressure sensor to improve the accuracy of the measured pressure in the high-pressure chamber.

A self-pumping hydropneumatic spring strut with internal leveling for motor vehicles includes a working cylinder filled with damping medium. The working cylinder is under the pressure of at least one gas cushion arranged in a high-pressure chamber and acting as a spring. A piston divides the working cylinder into two working spaces and is connected to a hollow piston rod. Valves are arranged on the piston so that the two working spaces are in communiction through the valves. A piston pump is driven by the spring movements and pumps oil out of a low-pressure chamber into the working space connected to the high-pressure chamber and comprises a pump space formed by the hollow piston rod, a pump rod connected to the working cylinder. A further pressure generator acts upon the damping medium in the high-pressure chamber and / or the working space connected to the high-pressure space.

A reloadable non-lethal training cartridge is provided comprising a cartridge case, a rear high pressure chamber removably disposed within the base thereof, and a non-lethal payload portion removably disposed adjacent the forward end of the cartridge case. The rear high pressure chamber is provided with a base capable of interacting with a removal tool, such as a hexagonal shaped base capable of interacting with a standard socket. Further, the non-lethal payload portion is comprised of a base and a non-lethal payload, the non-lethal payload and base being removably attached such that one or both of said components may be reused. In addition, the non-lethal payload may be weighted, so as to increase the accuracy thereof.

The invention provides for a scanning electron or ion beam instrument capable of transferring the beam from a high vacuum chamber (8) into a high pressure chamber (5) via aperture (1) and aperture (2). The beam is deflected and scanned by coils (3) generally positioned between apertures (1) and (2). The amplitude of deflection of the beam over a specimen placed inside chamber (5) is substantially larger than the diameter of aperture (1). Leaking gas through aperture (1) is removed via port (7) by appropriate pumping apparatus. The size of aperture (1) is such that the pressure in chamber (6) combined with the supersonic jet and shock waves naturally forming therein do not result in catastrophic electron beam loss in chamber (6). The addition of appropriate detection means result in an instrument characterised by superior performance over prior art by way of better field of view at low magnification, better vacuum system and improved detection and imaging capabilities.

Self-pumping hydropneumatic suspension strut with internal ride-height control, particularly for motor vehicles, with an outer tube with an oil-filled high-pressure work space under the pressure of at least one gas cushion acting as spring in a high-pressure chamber, a second work space on the piston rod side, and an axially displaceable piston which is supported by a hollow piston rod and is sealed in the work cylinder. The piston rod which is driven by the springing movement of the vehicle conveys oil from a low-pressure chamber to the second work space connected to the high-pressure chamber and a pump rod is received in a pump cylinder formed by the hollow piston rod. The high-pressure chamber is connected with a flow connection arranged in the piston rod guide, wherein a filling bore hole arranged in the outer tube communicates with the flow connection when the piston rod guide is not completely mounted, and the filling bore hole is closed by the piston rod guide after the piston rod guide slides axially into the outer tube.

A reactor / purifier for generating pure hydrogen in a stack or array of pairs of alternatingly connected high and low pressure reactor chambers wherein a gas-porous turbulence-promoting screen structure washcoated with a steam-reforming catalyst is sandwiched between a planar hydrogen-selective palladium alloy membrane and a planar gas-impermeable heat-conducting metal plate within the high pressure reactor chamber of each high pressure reactor chamber; and wherein the catalyst-coated structure in each high pressure chamber is reacted with steam and hydrocarbon fuel, such as methane or syn / gas, and / or carbon monoxide at an appropriately controlled temperature of between about 200° C. to 650° C. to produce hydrogen and carbon oxides within an isothermal temperature range in each high pressure reactor chamber, while simultaneously permeating pure hydrogen therefrom through the membrane into the corresponding connected low pressure reactor chamber.

The invention discloses a hydraulic buffer device and a buffer oil cylinder comprising the device, belongs to the field of hydraulic parts and overcomes the defects that a buffer mechanism of the buffer oil cylinder in the prior art is complex, high in manufacturing accuracy requirement, difficult in structural arrangement, low in buffer efficiency and reliability, poor in buffer effect controllability and buffer quality, and difficultly employs a composite mode of throttling back pressure of an oil return chamber and pressure-relief unloading of a high pressure chamber at the same time. An annunciator is arranged at a position where an oil cylinder journey approaches to a destination so as to control movement of a slide valve of the buffer device, thus the opening degree and the liquid flow direction of a valve opening of a buffer valve are dynamically regulated, and an oil pressure of an oil cylinder which enters into the oil return chamber is further controlled; a movement velocity of an oil cylinder piston at the destination of the journey is controlled through the modes of the pressure-relief unloading of the high pressure chamber of an oil cylinder and / or the throttling back pressure of the oil return chamber, thus high quality buffer, good buffer controllability and high reliability of the oil cylinder are realized, and the overall quality of a product is improved.