Compressors including polymeric components

Abstract

Improvements in compressor manufacture are achieved by utilizing polymeric components which retain at least 90% of their dimensions after being exposed to a mixture of refrigerants and/or lubricants for 30 days at 60° C. Polymeric materials include (i) polyetherimides, (ii) polyphenylene sulfides, (iii) polyketones, (iv) polysulfones, (v) liquid crystal polymers, and (vi) combinations thereof. Metal coatings on the polymers are the preferred embodiments for housings.

1 .- 34 . (canceled) 
     
     
         35 . A compressing member comprising:
 an element comprising a polymeric material comprising a polyetherimide or a combination of a polyetherimide and a polyphenylene sulfide, wherein the polymeric material retains at least 90% of its dimensions after being exposed to a mixture of at least one lubricant and at least one refrigerant for 30 days at temperatures of 60 degrees Celsius.   
     
     
         36 . The compressing member of claim  1 , wherein the polymeric material is configured to have at least one reinforcing shape comprising a rib, a boss, a flange, a hoop and combinations thereof. 
     
     
         37 . The compressing member of claim  1 , wherein the polymeric material consists of a polyetherimide or a combination of a polyetherimide and a polysulfone, optionally in combination with a phosphorus containing stabilizer. 
     
     
         38 . The compressing member of claim  1 , wherein the polymeric material retains at least 85% of its tensile strength after being exposed to a mixture of refrigerant(s) and lubricant(s) for 30 days. 
     
     
         39 . The compressing member of claim  1  wherein the polyetherimide comprises repeating units derived from bisphenol A and a diamine, wherein the diamine comprises p-phenylene diamine, m-phenylene diamine, diamino diphenyl sulfone, or a combination thereof. 
     
     
         40 . The compressing member of claim  1 , wherein the polymeric material exhibits a creep of less than or equal to 10% after being exposed to the mixture of lubricant and refrigerant for 30 days. 
     
     
         41 . The compressing member of claim  1 , wherein the polymeric material further comprises glass fibers, carbon fibers or a combination thereof. 
     
     
         42 . The compressing member of claim  1 , wherein the element further comprises a crosslinked organic base coat disposed on the polymeric material. 
     
     
         43 . The compressing member of claim  1 , wherein the element further comprises a metal layer. 
     
     
         44 . The compressing member of claim  1 , wherein the polymeric material comprises a combination of a polyetherimide and a polyphenylene sulfide and the polyphenylene sulfide is present in an amount of 24 to 85 weight percent based on the weight of the polymeric material. 
     
     
         45 . A compressor, said compressor comprising:
 (1) a motor element;   (2) a compressing member, wherein the compressing member comprises a polyetherimide or a combination of a polyetherimide and a polyphenylene sulfide, wherein the polymeric material retains at least 90% of its dimensions after being exposed to a mixture of at least one lubricant and at least one refrigerant for 30 days at temperatures of 60 degrees Celsius and,   wherein the compressing member retains at least 85% of its tensile strength after being exposed to the mixture of lubricant and refrigerant for 30 days.   
     
     
         46 . The compressor of claim  11 , wherein compressing member is configured to have at least one reinforcing shape comprising a rib, a boss, a flange, a hoop and combinations thereof. 
     
     
         47 . The compressor of claim  11 , wherein compressing member consists of a polyetherimide or a combination of a polyetherimide and a polysulfone, optionally in combination with a phosphorus containing stabilizer. 
     
     
         48 . The compressor of claim  11 , wherein the polyetherimide comprises repeating units derived from bisphenol A and a diamine, wherein the diamine comprises p-phenylene diamine, m-phenylene diamine, diamino diphenyl sulfone, or a combination thereof. 
     
     
         49 . The compressor of claim  11 , wherein compressing member exhibits a creep of less than or equal to 10% after being exposed to the mixture of lubricant and refrigerant for 30 days. 
     
     
         50 . The compressor of claim  11 , wherein compressing member further comprises glass fibers, carbon fibers or a combination thereof. 
     
     
         51 . The compressor of claim  11 , wherein compressing member further comprises a crosslinked organic base coat disposed on the polymeric material. 
     
     
         52 . The compressor of claim  11 , wherein compressing member further comprises a metal layer. 
     
     
         53 . The compressor of claim  11 , wherein compressing member comprises a combination of a polyetherimide and a polyphenylene sulfide and the polyphenylene sulfide is present in an amount of 24 to 85 weight percent based on the weight of the polymeric material. 
     
     
         54 . A compressor, said compressor comprising:
 (1) a motor element;   (2) a compressing member, wherein the compressing member consists of a polyetherimide or a combination of a polyetherimide and a polysulfone, optionally in combination with a phosphorus containing stabilizer, wherein the polymeric material retains at least 90% of its dimensions after being exposed to a mixture of at least one lubricant and at least one refrigerant for 30 days at temperatures of 60 degrees Celsius,   wherein the compressing member retains at least 85% of its tensile strength after being exposed to the mixture of lubricant and refrigerant for 30 days, and   the compressing member is configured to have at least one reinforcing shape comprising a rib, a boss, a flange, a hoop and combinations thereof.