Fluid dynamometer having fluid characteristic power absorption adjustment capability

A fluid dynamometer for absorbing a range of output power produced by an engine's rotating shaft, comprising:

• a fluid, said fluid being selected from the group consisting generally of fresh water, salt water, a water/ethylene glycol mixture, mineral oil, synthetic oil, glycerine and liquid silicon, said fluid being salt water:
• tank means containing said fluid and receiving the rotating shaft therein;
• disk means, submerged in said fluid and fixably mounted on the rotating shaft for rotation therewith, for cooperating with said fluid to absorb power produced by the rotating shaft, said disk means sized to absorb a first specified amount of power from the rotating shaft at a first specified temperature of said fluid;
• means for heating said fluid;
• means for cooling said fluid;
• means for simultaneously controlling said heating and cooling means to adjust and maintain said fluid at a predetermined temperature value for power absorption at a second specified amount of power produced by the rotating shaft;
• and
• means for adjusting the salinity of said salt water.

A fluid dynamometer for absorbing a range of output power produced by an engine's rotating shaft, comprising:

• a fluid, said fluid being selected from the group consisting generally of fresh Water, salt water, a water/ethylene glycol mixture, mineral oil, synthetic oil, glycerine and liquid silicon, said fluid being the foregoing water/ethylene glycol mixture;
• tank means containing said fluid and receiving the rotating shaft therein;
• disk means, submerged in said fluid and fixably mounted on the rotating shaft for rotation therewith, for cooperating with said fluid to absorb power produced by the rotating shaft, said disk means sized to absorb a first specified amount of power from the rotating shaft at a first specified temperature of said fluid;
• means for heating said fluid;
• means for cooling said fluid;
• means for simultaneously controlling said heating and cooling means to adjust and maintain said fluid at a predetermined temperature value for power absorption at a second specified amount of power produced by the rotating shaft;
• and
• means for adjusting percentages of water and ethylene glycol.

A fluid dynamometer for absorbing a range of output power produced by an engine's rotating shaft, comprising:

• tank means containing water and receiving the rotating shaft therein, said water being salt water;
• at least one disk, submerged in said water and coaxially mounted on the rotating shaft for rotation therewith, for cooperating with said water to absorb power produced by the rotating shaft, said at least one disk sized to absorb a first specified amount of power from the rotating shaft at a calibration temperature of said water;
• means for heating said water;
• means for cooling said water;
• and
• means for simultaneously controlling said heating and cooling means to adjust and maintain said water at a predetermined temperature value for power absorption at a second specified amount of power produced by the rotating shaft.

A fluid dynamometer for absorbing a range of output power produced by an engine's rotating shaft, comprising:

• tank means containing water and receiving the rotating shaft therein;
• at least one disk, submerged in said water and coaxially mounted on the rotating shaft for rotation therewith, for cooperating with said water to absorb power produced by the rotating shaft, said at least one disk sized to absorb a first specified amount of power from the rotating shaft at a calibration temperature of said water;
• means for heating said water;
• means for cooling said water;
• means for simultaneously controlling said heating and cooling means to adjust and maintain said water at a predetermined temperature value for power absorption at a second specified amount of power produced by the rotating shaft;
• and
• means for altering the chemical composition of said water.