What is a Tecumseh Hermetic Compressor?
A direct-connected motor compressor assembly enclosed within a steel housing and designed to pumps low pressure refrigerant gas to a higher pressure. Tecumseh hermetic compressors are all of the low pressure shell or housing type. This means that the compressor housing interior is subjected to suction pressure only and not to the discharge pressure created by the stroke of the piston. This point is emphasized in order to stress the hazard of introducing high pressure gas into the compressor shell at pressures above 150 PSIG. The major internal parts of a Tecumseh hermetic compressor are listed in the same sequence as that of the refrigerant gas flow through the compressor. First the suction is drawn into the compressor shell, then to and through the electric motor which provides power to the crankshaft. The crankshaft revolves in its bearings, driving the piston(s) in the cylinder(s). The crankshaft is designed to carry oil from the oil pump in the bottom of the compressor to all beari