Combination liquid trapping suction accumulator and evaporator pressure regulator device

A liquid trapping suction accumulator adapted for insertion in a vapor-compression refrigeration system between the evaporator and compressor, comprising:

• A. an accumulator chamber defined by a casing vertically extending and having a top and a bottom;
• B. colinear horizontally disposed inlet and outlet ports in the top, and opening into said chamber and respectively adapted for operative connection into said evaporator and said compressor;
• C. removable adaptor means forming an evaporator pressure regulator chamber positioned in said outlet port in communication with said accumulator chamber;
• said adaptor means being further characterized as:
• i. being threadably removably positioned adjacent the top of said accumulator chamber wherein said removable adaptor means includes a threaded portion engaging a correspondingly horizontally threaded portion in said outlet port and further defining an annulus between said adaptor body and said outlet port;
• ii. said adaptor body containing a pressure responsive evaporator pressure regulator device horizontally therein and in compressive sealing relationship to the adaptor means so as to guage admission of vapor through said evaporator pressure regulator chamber and said outlet;
• D. an eductor tube extending independently from the bottom of said accumulator chamber into said evaporator pressure regulator chamber through said annulus, the adaptor wall of said annulus including a discharge orifice perpendicular to said evaporator pressure regulator;
• and
• E. a filter-drier positioned between the outlet of the condenser in the system and a thermostatic expansion valve at the inlet of the evaporator in the system.