Valve arrangement for refrigerant compressor

Abstract

In some aspects, the techniques described herein relate to a refrigerant compressor, including: a first cooling line configured to cool power electronics; a second cooling line configured to cool a motor of the compressor; a first valve operable to selectively restrict flow through the first cooling line, wherein the first valve is mounted to a baseplate; and a second valve operable to selectively restrict flow through the second cooling line, wherein the second valve is mounted to the baseplate.

1 . A refrigerant compressor, comprising:
 a first cooling line configured to cool power electronics;   a second cooling line configured to cool a motor of the compressor;   a first valve operable to selectively restrict flow through the first cooling line, wherein the first valve is mounted to a baseplate; and   a second valve operable to selectively restrict flow through the second cooling line, wherein the second valve is mounted to the baseplate.   
     
     
         2 . The refrigerant compressor as recited in  claim 1 , wherein fluid flowing into the first and second valves is from a common source. 
     
     
         3 . The refrigerant compressor as recited in  claim 1 , wherein:
 the baseplate includes an inlet orifice and a first conduit connected to the inlet orifice, and   the first conduit leads to a junction configured to direct some flow from the first conduit toward the first valve and other flow to the second valve.   
     
     
         4 . The refrigerant compressor as recited in  claim 3 , wherein:
 a first inlet conduit connects the first valve and the junction, and   a second inlet conduit connects the second valve and the junction.   
     
     
         5 . The refrigerant compressor as recited in  claim 4 , wherein:
 the baseplate includes a first outlet orifice,   a first outlet conduit connects the first valve and the first outlet orifice,   the baseplate includes a second outlet orifice, and   a second outlet conduit connects the second valve and the second outlet orifice.   
     
     
         6 . The refrigerant compressor as recited in  claim 5 , wherein:
 a first rib connects the inlet orifice to the first outlet orifice,   a second rib connects the inlet orifice to the second outlet orifice, and   the first and second ribs project outward of a remainder of a surface of the baseplate.   
     
     
         7 . The refrigerant compressor as recited in  claim 1 , wherein the baseplate is brass. 
     
     
         8 . The refrigerant compressor as recited in  claim 1 , wherein the baseplate is mounted within a power electronics housing of the refrigerant compressor. 
     
     
         9 . The refrigerant compressor as recited in  claim 8 , wherein the baseplate includes openings configured to receive fasteners. 
     
     
         10 . The refrigerant compressor as recited in  claim 1 , wherein the first and second valves are electronic expansion valves. 
     
     
         11 . A refrigerant system, comprising:
 a main refrigerant loop in communication with a condenser, an evaporator, and a compressor, wherein the compressor includes:
 a first cooling line configured to cool power electronics; 
 a second cooling line configured to cool a motor of the compressor; 
 a first valve operable to selectively restrict flow through the first cooling line, wherein the first valve is mounted to a baseplate; and 
 a second valve operable to selectively restrict flow through the second cooling line, wherein the second valve is mounted to the baseplate. 
   
     
     
         12 . The refrigerant system as recited in  claim 11 , wherein fluid flowing into the first and second valves is from a common source. 
     
     
         13 . The refrigerant system as recited in  claim 11 , wherein:
 the baseplate includes an inlet orifice and a first conduit connected to the inlet orifice, and   the first conduit leads to a junction configured to direct some flow from the first conduit toward the first valve and other flow to the second valve.   
     
     
         14 . The refrigerant system as recited in  claim 13 , wherein:
 a first inlet conduit connects the first valve and the junction, and   a second inlet conduit connects the second valve and the junction.   
     
     
         15 . The refrigerant system as recited in  claim 14 , wherein:
 the baseplate includes a first outlet orifice,   a first outlet conduit connects the first valve and the first outlet orifice,   the baseplate includes a second outlet orifice, and   a second outlet conduit connects the second valve and the second outlet orifice.   
     
     
         16 . The refrigerant system as recited in  claim 15 , wherein:
 a first rib connects the inlet orifice to the first outlet orifice,   a second rib connects the inlet orifice to the second outlet orifice, and   the first and second ribs project outward of a remainder of a surface of the baseplate.   
     
     
         17 . The refrigerant system as recited in  claim 11 , wherein the baseplate is brass. 
     
     
         18 . The refrigerant system as recited in  claim 11 , wherein the baseplate is mounted within a power electronics housing of the refrigerant compressor. 
     
     
         19 . The refrigerant system as recited in  claim 18 , wherein the baseplate includes openings configured to receive fasteners. 
     
     
         20 . The refrigerant system as recited in  claim 11 , wherein the first and second valves are electronic expansion valves.