Impact Chamber Construction

  • Impact Chamber Construction - Progress Pressure Testing

    Event Log Cavitation Energy Systems, September 14, 2015

    Progress continues to be made on completing the machine and assembly work on the Impact Chamber at the research and design facility of Cavitation Energy Systems, LLC (CES) located within the design and manufacturing complex of Florida Microelectronics (FME) in West Palm Beach Florida. FME is the primary engineering collaborator with CES and is providing mechanical engineering, electrical engineering, testing and manufacturing support to CES.

    We met on Monday, September 14 of 2015 to review progress and proceed with calibrating the impact chamber assembly (ICA) pressure relief valve. It is critical to know the pressure at which the relief valve will dump the steam from the impact chamber and retainment plenum (area to the left of item 11 within detail F of figure 4). To accomplish this we constructed a pressure adjustment valve assembly connected to a conventional aluminum scuba tank filled with 3000 psi gas.

    The accompanying photos show the various components of the pressuer testing and calibration system.

    The first figure shows the valve assembly with the incoming pressure on the left and the test pressure on the right with connection being made to the top of the ICA, which normally faces the injector housing assembly. This test fixture face has an internal o-ring to seal the system. Under normal conditions this will be removed and replaced with the injector housing and a copper washer (item 11 within detail F of figure 4).

    Calibration unit for pressure relief valve

    Figure 1: Calibration unit for pressure relief valve

    The second figure shows the calibration in progress with the input pressure active. The brown rotary valve on this pressure regulator is turned clockwise until the internal pressure is released. The pressure measurement on the right hand gauge is then observed, as this is the pressure that the relief valve opens at. In this case the vale opened at 250 psi, which was predicted based on the strength of the spring inside the valve. We ordered springs with a higher tensile strength so that we could obtain relief steam pressures of 400 - 600 psi. We expect to be testing this again as soon as the springs become available either today (09/15/2015) or tomorrow (0916/2015). This must be a known quantity before we can proceed with the final tests using steam.

    Calibration of the pressure relief valve using an external pressure source

    Figure 2: Calibration of the pressure relief valve using an external pressure source

    The third figure shows the unfinished aluminum injector cover housing. This device remains to be welded and machine finished. A seal tight connnection will be made through the top of this housing to facilitate entry of the injector drive (140 VDC) signals from an external control source. The housing will be sealed at the base to prevent escape of hydraulic fluid. Future designs will incorporate piezo-injectors that will be sourced from a common rail high pressure manifold. These will essentially have no moving parts (excepting the internal crystals) unlike the solenoid and amplifier piston of the conventional Ford fuel injector used in conjunction with an hydraulic accumulator.

    Aluminum injector cover enclosure

    Figure 3: Incomplete aluminum injector cover enclosure mounted on injector housing

    Figure 4 shows the cross sectional 2D documentation for the impact chamber, injector housing and containment vessel, for reference.

    Complete impact chamber 2D cross sectional documentation

    Figure 4: Impact chamber, injector housing and containment vessel documentation