Liquid cooling of a scroll type compressor with liquid supply through the crankshaft

A scroll device comprising:

• an orbiting scroll operably connected to a fixed scroll;
• a crankshaft operably connected to the orbiting scroll, wherein the crankshaft extends a total length along a longitudinal axis from a first end of the crankshaft to a second end of the crankshaft, and wherein the first end is arranged opposite the second end;
• at least one seal positioned about an outer surface of the crankshaft to form a seal with the outer surface;
• a first channel extending along a first channel axis completely through the crankshaft from a first opening disposed in a first portion of the first end to a second opening disposed in a first portion of the second end, wherein the first opening and the second opening are arrange in a line coincident with the first channel axis, wherein the first opening is in fluid communication with a first fluid source, wherein the first opening is disposed within a periphery of the first end, and wherein the first channel axis is parallel to the longitudinal axis;
• and
• a second channel extending along a second channel axis completely through the crankshaft from a third opening disposed on a second portion of the first end to a fourth opening disposed in a second portion of the second end, wherein the third opening and the fourth opening are arranged in a line coincident with the second channel axis, wherein the third opening is in fluid communication with a second fluid source, wherein the third opening is disposed within the periphery of the first end, and wherein an entirety of the second channel axis is parallel to an entirety of the first channel axis.

A scroll device comprising:

• an orbiting scroll operably connected to a fixed scroll;
• a crankshaft operably connected to the orbiting scroll, wherein the crankshaft extends a total length along a longitudinal axis between a first end of the crankshaft to a second end of the crankshaft, and wherein the first end is arranged opposite the second end;
• at least one first seal positioned about an outer surface of the crankshaft to form a seal with the outer surface;
• a first channel extending along a first channel axis completely through the crankshaft from a first opening disposed in a first portion of the first end to a second opening disposed in a first portion of the second end, wherein the first opening and the second opening are arranged in a line coincident with the first channel axis, wherein the first opening is disposed within a periphery of the first end, and wherein the first channel axis is parallel to the longitudinal axis;
• and
• a second channel extending along a second channel axis completely through the crankshaft from a third opening disposed in a second portion of the first end to a fourth opening disposed in a second portion of the second end, wherein the third opening and the fourth opening are arranged in a line coincident with the second channel axis, wherein the third opening is disposed within the periphery of the first end, and wherein the second channel axis is parallel to the first channel axis,
• wherein the first channel and the second channel are offset from the longitudinal axis of the crankshaft, and wherein a cooling fluid travels in a first direction through the first channel and in a second direction through the second channel to circulate the cooling fluid to and from the orbiting scroll.