Combination muffler and check valve for a screw compressor

A combination muffler and check valve comprising:

• first plate means having a bore therein and adapted to be secured to a compressor having a discharge whereby said bore forms a continuous flow path with said discharge;
• check valve assembly means secured to said first plate means and including valve seat means surrounding said bore and forming a continuous flow path therewith;
• first tube means secured to said first plate means and surrounding said check valve assembly means;
• second plate means having a bore therein and secured to said first tube means such that said first tube means extends through said bore in said second plate means;
• third plate means having a bore therein;
• an annular cylindrical member having a first end secured to said second plate means and a second end secured to said third plate means;
• divider means having a bore therein and located within said annular cylindrical member so as to coact with said second plate means and said cylindrical member to define a first chamber and to coact with said third plate means and said cylindrical member to define a second chamber;
• second tube means located in said bore in said divider means and extending into said first and second chamber;
• third tube means located in said bore in said third plate means and extending outwardly therefrom so as to define an outlet for said combination muffler and check valve.