An electric generator for the production of alternating current and voltage.

An electric motor driven by alternating electric current.

An electric generator for the production of direct current and voltage.

An electric motor for operation by direct current.

An energy transducer that transforms non-electric energy into electric energy.

An electric machine for transforming electric energy into mechanical energy.

A turbine that compresses air which is then mixed with fuel for combustion and expansion through a turbine section to generate relatively high power output for either mechanical drive or power generation.

A turbine in which liquid forces are driving the rotor by the reaction of acceleration of subject liquid flow in the runner while the pressure drops.

A thermodynamic turbine in which steam is made to do work by expanding so as to create kinetic energy by acting on moving blades attached to a disc or drum.

A physical object that is intended to rotate within a fluid and to transform energy within a fluid into mechanical power.

An expander of the turbine type used to reduce the pressure of a gas flow by leading it through a turbine rotor by which the recovered energy is transferred into rotational energy for either power generation or mechanical drive application.