Abstract: The presently-disclosed subject matter includes a pressure intensification device that increases the pressure of a fluid at a first pressure to a second higher pressure. In some embodiments the devices comprises an outer shell, and outer element housed within the outer shell, and an inner element housed within the outer element, the inner and outer elements being configured to slide in a reciprocating manner within the outer shell to increase the pressure of a fluid. In some embodiments the device does not comprise an additional power source or motor to increase the pressure of the fluid to a second pressure.

Abstract: The presently-disclosed subject matter includes a pressure intensification device that increases the pressure of a fluid at a first pressure to a second higher pressure. In some embodiments the devices comprises an outer shell, and outer element housed within the outer shell, and an inner element housed within the outer element, the inner and outer elements being configured to slide in a reciprocating manner within the outer shell to increase the pressure of a fluid. In some embodiments the device does not comprise an additional power source or motor to increase the pressure of the fluid to a second pressure.

Abstract: An apparatus for removing deposits from the interior surface of a conduit while being advanced through the conduit by virtue of pressurized upstream liquid includes front and rear assemblies interconnected in a manner to permit limited movement there between. The rear assembly contains a mechanism for receiving the upstream liquid and increasing its pressure. The liquid of increased pressure is fed to a rotating nozzle in the front assembly. High velocity water jets emergent from the nozzle strike the interior surface of the conduit to dislodge deposits. A resilient sidewall in one or both assemblies expands by virtue of the liquid of increased pressure to apply a controlled braking force against the interior surface of the conduit.