Abstract: A high pressure fluid system includes a sealing mechanism, which provides a fluid seal for a cylindrical bore via pressing contact between a first convex, curved surface at an end of the cylindrical bore and a second convex, curved surface at a containment element that is coupled relative to the end of the cylindrical bore.
Abstract: A high pressure fluid system includes a sealing mechanism, which provides a fluid seal for a cylindrical bore via pressing contact between a first convex, curved surface at an end of the cylindrical bore and a second convex, curved surface at a containment element that is coupled relative to the end of the cylindrical bore.
Abstract: A cushioning means for an intensifier for delivering ultra high pressure water to the cutting head of a water jet cutting apparatus. The intensifier has a power piston and cylinder assembly connected to secondary fluid pumping piston members which extend into pumping chambers located at opposite ends of the hydraulic piston and cylinder assembly, and in a common housing. Inlet poppet valves located in the pumping chambers control the flow of water from inlet passage into the pumping chambers while outlet poppet valves allow ultra high pressure water to be pumped out of the pumping chamber into an accumulator fluidly connected to the cutting head. Hydraulic fluid under pressure is sequentially directed to opposite ends of the piston and cylinder assembly, with the piston and cylinder assembly being provided with cushioning means to assist in smooth deceleration of the piston during each stroke or cycle.