Suction muffler for hermetic motor compressors having m-shaped oil separation element

Claim 1

A suction muffler for a motor compressor, said compressor comprising a hermetic sealed casing, a driving electric motor, a cylinder and a cylinder head accessing the suction and discharge chambers of the refrigerating gas within said casing, said suction muffler comprising a body having top rear and frontal walls, a pair of lateral walls and a cover closing a lower side of the body, said cover having holes therein communicating with said suction chamber, said body providing on its frontal wall a hole through which the refrigerating gas is sucked, first means positioned internally of said body to separate said refrigerating gas from the oil particles contained therein, and second means to discharge said separated oil from said body, said first means being formed by a M-shaped element adapted to create narrow passages with the lateral walls of said body in such a way that the sucked refrigerating gas strikes against the rear wall of said body and is diverted toward said narrow passages for obtaining the separation of the oil particles from the refrigerating gas.