Abstract: A nozzle assembly for generating fluid jets, such as self-spinning fluid jets. A nozzle body includes a cylindrical nozzle cavity, an inlet, an outlet, and a tubular nozzle rotor assembly positioned with respect to the nozzle cavity. The nozzle rotor assembly can have a ball end and a tubular end and a central fluid passage routed through the nozzle rotor assembly. A fluid swirl enhancer forms communication with the inlet. A replaceable nozzle seat forms communication with the ball end of the nozzle rotor assembly and with the outlet. The ball end of the nozzle rotor assembly pivots, oscillates and rotates against the nozzle seat when pressurized fluid flows through the nozzle assembly.

Abstract: A nozzle assembly for generating fluid jets, such as self-spinning fluid jets. A nozzle body includes a cylindrical nozzle cavity, an inlet, an outlet, and a tubular nozzle rotor assembly positioned with respect to the nozzle cavity. The nozzle rotor assembly can have a ball end and a tubular end and a central fluid passage routed through the nozzle rotor assembly. A fluid swirl enhancer forms communication with the inlet. A replaceable nozzle seat forms communication with the ball end of the nozzle rotor assembly and with the outlet. The ball end of the nozzle rotor assembly pivots, oscillates and rotates against the nozzle seat when pressurized fluid flows through the nozzle assembly.

Abstract: An apparatus for generating high-speed pulsed fluid jets. A valve assembly has a valve body with an inlet and an outlet. A valve shuttle is slidably or movably mounted with respect to the valve body. The valve shuttle is positioned within a cavity of the valve body and divides the cavity into an upper or inlet cavity and a lower or outlet cavity. The valve shuttle has a passage in communication with the upper cavity and the lower cavity. In an open condition of the valve assembly, fluid communication is formed between the inlet, the inlet cavity, the passage, the outlet cavity and the outlet.

Abstract: An on-off valve that can operate between an open position and a closed position. The on-off valve has a valve body with a cylindrical valve cavity, an inlet, an outlet, and in an open position the inlet is in communication with the outlet. A cylindrical valve cartridge is sealably mounted within a chamber of the valve cavity and has a central cavity facing the valve cavity and a bore forming communication with an atmosphere external to the valve cartridge. A pin extension is movably mounted within the bore. A pin bushing and a pin seal are mounted within the central cavity, and an actuating pin is movably mounted at least partially within the central cavity. A valve poppet is slidably mounted within the valve cavity. In a closed position a first end portion of the valve poppet closes the first outlet, and in an open position the first end portion opens the first outlet. A bias element is mounted to exert a bias force to and urge the valve poppet against the valve cartridge.

Abstract: An apparatus for generating high-speed pulsed fluid jets. A valve assembly has a valve body with an inlet and an outlet. A valve shuttle is slidably or movably mounted with respect to the valve body. The valve shuttle is positioned within a cavity of the valve body and divides the cavity into an upper or inlet cavity and a lower or outlet cavity. The valve shuttle has a passage in communication with the upper cavity and the lower cavity. In an open condition of the valve assembly, fluid communication is formed between the inlet, the inlet cavity, the passage, the outlet cavity and the outlet.

Abstract: An on-off valve that operates between an open position and a closed position, particularly with high-pressure working fluids. has a valve body that defines a valve cavity. A valve poppet is slidably mounted within the valve cavity. A bushing is mounted with respect to the valve body and divides the valve cavity into a first chamber and a second chamber. One end of the valve poppet is positioned within the first chamber and an opposite end of the valve poppet is positioned within the second chamber. A spring urges the valve poppet into the first chamber. An actuating pin is slidably mounted with respect to the valve body. In the closed position, the actuating pin seals the passage of the valve poppet. An actuator is used to operate the actuating pin between the open position and the closed position of the on-off valve.

Abstract: An on-off valve that operates between an open position and a closed position, particularly with high-pressure working fluids. The on-off valve has a valve body that defines a valve cavity. A valve poppet is slidably mounted within the valve cavity. A bushing is mounted with respect to the valve body and divides the valve cavity into a first chamber and a second chamber. One end of the valve poppet is positioned within the first chamber and an opposite end of the valve poppet is positioned within the second chamber. The valve body has an inlet and an outlet, which communicate with each other in the open position of the on-off valve. A spring urges the valve poppet into the first chamber. In the closed position of the on-off valve, the valve poppet closes the outlet. An actuating pin is slidably mounted with respect to the valve body. In the closed position, the actuating pin seals the passage of the valve poppet.

Abstract: An apparatus and process for generating a pulsed high-speed fluid jet that can be used to extinguish fires and/or to launch a projectile. A valve, such as an instant on-off valve, preferably operates in combination with a pressure accumulator. In a controlled manner, a pulsed fluid jet is generated and directed through a nozzle. The nozzle can draw into the fluid-jet an additive. The nozzle may also be used to launch a projectile using the fluid jet as a propellant.

Abstract: A fluid pressurization apparatus utilizing a slanted cam disk to oscillate, or to oscillate and rotate a set of piston assemblies arranged in a circle. The motion of the pistons is utilized to pressurize fluid or to perform work. The piston assemblies have multiple elements configured to allow the plungers to be engaged or disengaged to the motion of a disk by manipulating a working fluid introduced into the apparatus. By virtue of these disengageable plungers, the apparatus can be disabled and resumed at will. This apparatus is particularly well suited for pressurizing liquids such as water for high-pressure and high-flow applications.

Abstract: A fluid transfer apparatus utilizing a slanted cain disk to oscillate and rotate a set of pistons arranged in a circle. Channels associated with the pistons and piston housing effect the transfer of fluid from a first location to a second location, as well as the pressurization or depressurization of the fluid, during movement of the pistons. The apparatus can be used as a high-pressure fluid pump, a fluid-powered motor, a fluid distribution valve, or another fluid transfer device.

Abstract: An apparatus and method for generating a high-speed pulsed fluid jet wherein the apparatus has a valve cylinder that forms a valve cavity. A piston is slidably mounted within the valve cavity. A plunger with an internal chamber is fixed with respect to the piston. The internal chamber communicates with the valve cavity. An end plug is sealably mounted with respect the plunger. The end plug has a bore through which a valve stem is sealably and slidably mounted. The valve stem is mounted to slide within the internal chamber, the bore of the end plug and a valve chamber of a cylinder. The valve chamber communicates with a pressurized fluid source. A valve poppet is attached to the valve stem. A spring or compressed gas is used to exert a bias force which normally urges the valve poppet into a releasable seated position within a valve port of an end plug which is sealably mounted with respect to a fluid cylinder that forms the valve chamber.

Abstract: A high-pressure valve assembly having a valve body that defines a preferably cylindrical valve cavity, a fluid inlet, a fluid outlet and a plurality of valve ports; and a fluid pressure intensifier assembly having a plurality of piston-plunger assemblies and utilizing the high-pressure valve assembly to distribute the working fluid. The valve assemblies have a valve rotor rotatably mounted within the valve cavity. In one embodiment, the valve rotor divides the valve cavity into a high-pressure region in communication with the fluid inlet and a low-pressure region in communication with the fluid outlet. As the valve rotor rotates, at least one and preferably three or more valve ports communicate with the power chamber and at least one and preferably three or more valve ports communicate with the discharge chamber.

Abstract: A pressure valve having a fluid inlet, a first chamber, a throughbore, a second chamber, a fluid outlet and a valve stem. The valve stem is mounted within a valve body and has several different diameters. A pressure condition within one or more of the chambers acts upon the valve stem to urge the stem into either an open position or a closed position, depending upon the design of the valve. The valve is particularly suitable for bypass valves, pressure regulating valves, over-pressure protection valves, lost-pressure protection valves, and other pressure-sensitive valve applications.

Abstract: A nozzle cone and an oscillating fluid-jet nozzle system capable of producing relatively high-velocity, high-frequency oscillating fluid jets useful in waterjetting and other industrial spray applications. The oscillating fluid jetting apparatus includes a conduit and a follower which is mounted with respect to the conduit. A cam mechanically drives the follower so that the cam moves with respect to the follower. A portion of the conduit is secured with respect to a housing. An inlet block is secured with respect to the housing. An inlet end portion of the conduit is secured with respect to the inlet block. The inlet block has a fluid inlet opening which is in communication with the conduit.

Abstract: A method and apparatus for generating a high-pressure fluid jet which preferably draws a material, such as an additive, into the fluid jet. A working pressure of the fluid is increased to generate a high-pressure fluid. The high-pressure fluid is stored within a high-pressure chamber of an accumulator. The stored high-pressure fluid is discharged through a discharge port of the accumulator. The pressure of the high-pressure fluid within the high-pressure chamber is maintained by decreasing the volume of the high-pressure gas chamber as the fluid passes through the discharge port. The high-pressure fluid is then transported into an injection nozzle for forming a high-pressure fluid jet. Within the injection nozzle, a material is combined with the high-pressure fluid jet. The combined fluid and material jet is then discharged from the injection nozzle.

Abstract: A flow control valve for instant on-off operations with gases or liquids at relatively high pressures, such as pressures between 10,000 psi and 100,000 psi. The valve includes a valve body having two or more valve cavities in communication with each other and defined by two end seal assemblies and one or more valve port seal assemblies. An elongated, round, sliding valve stem is centrally located through the seal assemblies. End plugs are used to support the end seal assemblies. The valve stem has fluid passages which are preferably machined at a mid-section of the valve stem. The valve stem is slid parallel to its longitudinal axis to allow or prevent communication between the valve cavities by way of the fluid passage of the valve stem. Two opposite ends of the valve stem are either not exposed to the working fluid or are exposed to different pressures of the working fluid.

Abstract: A check valve having a valve housing with an outlet fluid passage and a housing valve cavity in communication with each other. A valve body has an inlet fluid passage and a body cavity in communication with each other. The valve body is sealably secured to the valve housing. A valve poppet is slidably mounted within the body cavity. The valve poppet has a central cavity. A side wall of the valve poppet has a poppet through hole which is in communication with the central cavity. The valve poppet has a poppet shoulder portion and an extension portion. A seal disk has a seal disk through hole into which the extension portion of the valve poppet is positioned. The seal disk is positioned within the housing valve cavity. A closure spring is used to normally urge the valve poppet into a closed position in which the valve poppet preferably abuts a sealing surface of the valve body.

Abstract: A fast-actuating on-off valve and pressure regulator particularly well-suited for use with high-pressure incompressible fluids. An actuator, manually-operated or powered, provides a linear push-pull force to a valve stem assembly mounted inside a valve cavity having a fluid inlet and one or more fluid outlets. The valve stem assembly includes a valve stem that has a shoulder at one end. The valve stem assembly includes a stem collar having a capped end with a central hole to engage the valve stem, a cylindrical cavity to house the stem shoulder, and a threaded portion engageable with a valve poppet or a poppet extension. Each valve poppet has a threaded end engageable with the stem collar and a sealing end to engage with a fluid outlet centrally positioned within a valve seat or a valve poppet.

Abstract: A valve assembly having a valve body, a middle body and an adapter block secured to each other. Fluid enters thorugh an inlet tube and in a normal operating condition is discharged through an outlet tube. To relieve the pressure within the valve assembly, a dump tube is opened. A dump valve seat is mounted within the valve body. A valve plunger is mounted within a plunger shoulder cavity within the valve body and/or the middle body. The valve plunger mates with the dump valve seat. A compression spring is used to urge the valve plunger into either a seated position or an unseated position. A dump valve stem is axially displaced into and out of a seated position within a plunger through hole of the valve plunger.

Abstract: A fast-actuating on-off valve and pressure regulator particularly well-suited for use with high-pressure incompressible fluids. An actuator, manually-operated or powered, provides a linear push-pull force to a valve stem assembly mounted inside a valve cavity having a fluid inlet and one or more fluid outlets which are arranged axially and concentric with respect to the valve stem. The valve stem assembly includes a valve stem that has a shoulder at one end, with or without an extension. One or more stem springs are positioned concentrically with respect to the valve stem and are capable of sliding along the valve stem and the extension of the valve stem. The valve stem assembly includes one or more stem collars each having a capped end with a central hole to engage the valve stem, a cylindrical cavity to house the stem shoulder, and a threaded portion engageable with a valve poppet.