Load apparatus and method of using same

A power system comprising:

• a machine comprising a drive shaft;
• and
• a load apparatus coupled to said machine, wherein said load apparatus comprises:
• a load configured to convert mechanical rotational energy to electrical energy for a power output;
• a rotor assembly coupled to said load, wherein said rotor assembly comprises a rotor shaft comprising at least one rotor shaft end portion, said at least one rotor shaft end portion comprises at least one extension portion that extends radially outwardly from a surface of said at least one rotor shaft end portion;
• and
• a coupling shaft configured to couple to said rotor shaft, wherein said coupling shaft comprises:
• a cylindrical main body portion;
• and
• at least one cylindrical coupling shaft end portion that extends from said main body portion, wherein said at least one coupling shaft end portion is configured to couple to said at least one rotor shaft end portion, said at least one coupling shaft end portion comprises:
• an exterior surface;
• an opposing interior surface;
• and
• at least one slot that extends from said interior surface and through said exterior surface, wherein said at least one slot is configured to receive said at least one extension portion therein such that said at least one extension portion extends radially outwardly from said exterior surface.

A method of using a load apparatus, said method comprising:

• providing a load that is configured to convert mechanical rotational energy to electrical energy for a power output;
• coupling a rotor assembly to the load, wherein the rotor assembly includes a rotor shaft including at least one rotor shaft end portion, the at least one rotor shaft end portion includes at least one extension portion that extends radially outwardly from a surface of the at least one rotor shaft end portion;
• providing a coupling shaft that is configured to couple to the rotor shaft, wherein the coupling shaft includes a cylindrical main body portion and at least one cylindrical coupling shaft end portion that extends from the main body portion, the at least one coupling shaft end portion includes an exterior surface, an opposing interior surface, and at least one slot that extends from the interior surface and through the exterior surface;
• and
• coupling the at least one coupling shaft end portion to the at least one rotor shaft end portion such that the at least one slot receives the at least one extension portion therein such that the at least one extension portion extends radially outwardly from the exterior surface.

A load apparatus comprising:

• a load configured to convert mechanical rotational energy to electrical energy for a power output;
• a rotor assembly coupled to said load, wherein said rotor assembly comprises a rotor shaft comprising at least one rotor shaft end portion, said at least one rotor shaft end portion comprises at least one extension portion that extends outwardly from a surface of said at least one rotor shaft end portion;
• and
• a coupling shaft configured to couple to said rotor shaft, wherein said coupling shaft comprises:
• a cylindrical main body portion;
• and
• at least one cylindrical coupling shaft end portion that extends from said main body portion, wherein said at least one coupling shaft end portion is configured to couple to said at least one rotor shaft end portion, said at least one coupling shaft end portion comprises:
• an exterior surface;
• an opposing interior surface;
• and
• at least one slot that extends from said interior surface and to said exterior surface, wherein said at least one slot is configured to receive said at least one extension portion therein such that said at least one extension portion cannot extend through said exterior surface.

A load apparatus comprising:

• a first shaft comprising at least one first shaft end portion, said at least one first shaft end portion comprises at least one extension portion that extends radially outwardly from a surface of said at least one first shaft end portion;
• and
• a second shaft configured to couple to said first shaft, wherein said second shaft comprises a cylindrical portion that comprises at least one second shaft end portion, wherein said at least one second shaft end portion is configured to couple to said at least one first shaft end portion, said at least one second shaft end portion comprises:
• an exterior surface;
• an opposing interior surface;
• and
• at least one slot that extends from said interior surface and through said exterior surface, wherein said at least one slot is configured to receive said at least one extension portion therein such that said at least one extension portion extends radially outwardly from said exterior surface.

A load apparatus comprising:

• a first shaft comprising at least one first shaft end portion, said at least one first shaft end portion comprises at least one extension portion that extends radially outwardly from a surface of said at least one first shaft end portion;
• and
• a second shaft configured to couple to said first shaft, wherein said second shaft comprises a cylindrical portion that comprises at least one second shaft end portion, wherein said at least one second shaft end portion is configured to couple to said at least one first shaft end portion, said at least one second shaft end portion comprises:
• an exterior surface;
• an opposing interior surface;
• and
• at least one slot that extends from said interior surface and to said exterior surface, wherein said at least one slot is configured to receive said at least one extension portion therein such that said at least one extension portion cannot extend through said exterior surface.