SUCTION MUFFLER FOR A HERMETICALLY ENCLOSED REFRIGERANT COMPRESSOR
The invention concerns a suction muffler ( 1 ) for a hermetically enclosed refrigerant compressor with a housing ( 2, 3 ) having, between an inlet ( 10 ) and an outlet ( 11 ), a first muffling chamber ( 8 ) in the flow direction and a second muffling chamber ( 9 ) in the flow direction, an insert ( 7 ) being arranged between the muffling chambers ( 8, 9 ), the insert ( 7 ) having a passage ( 18 ) that connects the muffling chambers ( 8, 9 ) to each other. It is endeavoured to obtain a certain degree of freedom when positioning the suction mufflers in the case of the compressor. For this purpose, the insert ( 7 ) has a tube ( 12 ) that is led through the second muffling chamber ( 9 ), one end of the tube ( 12 ) being led through the housing ( 2 ), the other end opening into the first muffling chamber ( 8 ).
1 . A suction muffler for a hermetically enclosed refrigerant compressor with a housing having, between an inlet and an outlet, a first muffling chamber in the flow direction and a second muffling chamber in the flow direction, an insert being arranged between the muffling chambers, the insert having a passage that connects the muffling chambers to each other, wherein the insert has a tube that is led through the second muffling chamber, one end of the tube being led through the housing, the other end opening into the first muffling chamber.
2 . The suction muffler according to claim 1 , wherein the housing has an outwardly projecting first tube connection, the tube being led through said connection.
3 . The suction muffler according to claim 1 , wherein the housing has an inwardly guided, second tube connection, through which the tube is led.
4 . The suction muffler according to claim 3 , wherein the second tube connection has a length, which corresponds to at least 75% of the smallest distance between the insert and the housing in the area of the second tube connection.
5 . The suction muffler according to claim 3 , wherein the insert has a jacket tube, which surrounds the second tube connection, at least on part of its length.
6 . The suction muffler according to claim 5 , wherein the jacket tube has a length, which corresponds to at least 75% of the shortest distance between the insert and the housing in the area of the second tube connection.
7 . The suction muffler according to, claim 1 wherein the tube projects through the insert.
8 . The suction muffler according to claim 1 , wherein the passage between the muffling chambers is formed by a tube channel, which is arranged in the insert and projects over the insert on both sides.
9 . The suction muffler according to claim 8 , wherein the tube channel and an outlet channel are arranged in series in the flow direction along the same axis.
10 . The suction muffler according to claim 1 , wherein the tube has an opening, which lies opposite a curved bottom wall of the housing.
11 . The suction muffler according to claim 10 , wherein in the first muffling chamber the housing has a gas guiding wall, which surrounds the tube on a part of its circumference.
12 . The suction muffler according to claim 10 , wherein the curved bottom wall extends into a guiding surface, which is at least partly arranged in parallel with the axis.