Scroll device with parallel path cooling

Abstract

A scroll device includes a fixed scroll, and orbiting scroll, and a parallel path cooling circuit that receives coolant to cool the fixed scroll, the orbiting scroll, and a motor housing. The parallel path cooling circuit includes a cooling path that splits to enable cooling of two or more components in parallel to one another. The parallel path cooling circuit allows multiple components to be cooled with two discrete cooling paths that are arranged in parallel and lower a pressure drop of the coolant within the scroll device when compared to a cooling path that includes an in-series arrangement.

What is claimed is: 
     
         1 . A scroll device comprising:
 a fixed scroll cooled by a first fluid circulation circuit;   an orbiting scroll cooled by a second fluid circulation circuit, the orbiting scroll performing an eccentric movement relative to the fixed scroll;   a motor cooled by a third fluid circulation circuit; and   an internal cooling network comprising:
 a single axial circulation fluid supply channel, formed by an alignment of cylindrical segments through the first fluid circulation circuit and the second fluid circulation circuit, and incorporating an inlet port for connection to an external fluidic source, the inlet port leading directly into the single axial circulation fluid supply channel; and 
 a single axial circulating fluid discharge channel, formed by the alignment of cylindrical segments though the first fluid circulation circuit and the second fluid circulation circuit, and incorporating an outlet port for connection to an external fluidic discharge, the outlet port leading directly into an outlet channel; 
   wherein each of the single axial circulation fluid supply channel and the single axial circulating fluid discharge channel extend axially parallel to a longitudinal axis of the scroll device and passes by the fixed scroll and the orbiting scroll, and   wherein the first fluid circulation circuit, the second fluid circulation circuit, and the third fluid circulation circuit are connected to the internal cooling network.   
     
     
         2 . The scroll device of  claim 1 , wherein at least one of the inlet port or the outlet port leads into a front end of the scroll device in an axial direction parallel to the longitudinal axis of the scroll device. 
     
     
         3 . The scroll device of  claim 1 , wherein at least one of the inlet port or the outlet port leads into at least one of the fluid supply channel or the outlet channel in a direction perpendicular to fluid supply channel or the single axial circulating fluid discharge channel, respectively. 
     
     
         4 . The scroll device of  claim 1 , further comprising a fluidic cooling circuit to cool a power electronic circuit. 
     
     
         5 . The scroll device of  claim 1 , wherein first fluid circulation circuit and the second fluid circulation circuit are connected fluidically in series, and wherein the third fluid circulation circuit is connected fluidically in parallel to the first fluid circulation circuit and the second fluid circulation circuit. 
     
     
         6 . The scroll device of  claim 5 , further comprising:
 at least one electronics circuit cooled by a fourth fluid circulation circuit, wherein the wherein fourth fluid circulation circuit is connected fluidically in parallel with the third fluid circulation circuit and in parallel with the first fluid circulation circuit and the second fluid circulation circuit.   
     
     
         7 . The scroll device of  claim 1 , wherein at least two of the first fluid circulation circuit, the second fluid circulation circuit, and the third fluid circulation circuit are fluidly connected in parallel with at least one flow reduction zone on at least one of the first fluid circulation circuit, the second fluid circulation circuit, and the third fluid circulation circuit or on the internal cooling network. 
     
     
         8 . The scroll device of  claim 1 , wherein a first subassembly is defined by the fixed scroll and the orbiting scroll and a second subassembly is defined by motor, and wherein the scroll device further comprises an intermediate housing crossed by two parallel cylinder segments that comprises:
 a front connection face with the first subassembly the connection face presenting a peripheral joint and outlets for the cylindrical segments positioned in relation to fluidic outlets of a supply segment and an evacuation segment the first subassembly; and   a front connection face with the housing of the second subassembly, an underside of the front connection face with the housing of the second subassembly having a peripheral joint and outlets of fluidic connections positioned opposite fluidic outlets of a second subassembly cooling circuit,   wherein circulation of fluid forming a closed circuit inside the first subassembly and the second subassembly, between a single inlet port provided for on the intermediate housing, and a single outlet port provided for on the intermediate housing.   
     
     
         9 . The scroll device of  claim 8 , wherein the intermediate housing has an additional cooling circuit surrounding a bearing supporting a connecting shaft between the motor and the orbiting scroll. 
     
     
         10 . A scroll device, comprising:
 a parallel cooling line system comprising;
 an inlet configured to receive and convey a cooling fluid into the parallel cooling line system; 
 an outlet configured to eject the cooling fluid exiting the parallel cooling line system; and 
 a parallel cooling line operatively connected to the inlet and the outlet, wherein the parallel cooling line is configured to convey the cooling fluid from the inlet to the outlet via separate and discrete parallel cooling paths; 
   wherein a first cooling path of the separate and discrete parallel cooling paths is arranged to convey a first portion of the cooling fluid along at least one component cooling area of the scroll device prior to reaching the outlet, wherein a second cooling path of the separate and discrete parallel cooling paths is arranged to convey a second portion of the cooling fluid along a different at least one component cooling area of the scroll device prior to reaching the outlet.   
     
     
         11 . The scroll device of  claim 10 , further comprising:
 a fixed scroll;   an orbital scroll operatively connected to the fixed scroll; and   a motor operatively attached to the orbital scroll.   
     
     
         12 . The scroll device of  claim 11 , wherein the at least one component cooling area of the scroll device corresponds to an area adjacent the fixed scroll or the orbital scroll. 
     
     
         13 . The scroll device of  claim 12 , wherein the different at least one component cooling area of the scroll device corresponds to an area adjacent the motor. 
     
     
         14 . The scroll device of  claim 13 , wherein the parallel cooling line comprises:
 a first split arranged at the inlet, the first split including a first conduit extending in a first direction and a second conduit extending in a second direction.   
     
     
         15 . The scroll device of  claim 14 , wherein the first conduit comprises a first internal cross-sectional area, and wherein the second conduit comprises a second internal cross-sectional area. 
     
     
         16 . The scroll device of  claim 15 , wherein the first internal cross-sectional area is different from the second internal cross-sectional area. 
     
     
         17 . The scroll device of  claim 16 , wherein the first internal cross-sectional area is larger than the second internal cross-sectional area. 
     
     
         18 . The scroll device of  claim 16 , wherein the first internal cross-sectional area is smaller than the second internal cross-sectional area. 
     
     
         19 . The scroll device of  claim 16 , wherein the first internal cross-sectional area is equal to the second internal cross-sectional area. 
     
     
         20 . The scroll device of  claim 16 , further comprising:
 a second split arranged at the outlet, the second split including a scroll cooling conduit that receives a portion of the cooling fluid from an area adjacent at least one of the fixed scroll or the orbital scroll of the scroll device, and a motor cooling conduit that receives a portion of the cooling fluid passing from an area adjacent the motor of the scroll device.