# US 10,865,793 B2 · Scroll type device having liquid cooling through idler shafts > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,865,793 B2 - Document ID: US10865793B2 - Status: Granted - Kind: B2 - Application number: 15/732,593 - Filed: 2017-11-30 - Published: 2018-06-14 - Granted: 2020-12-15 - Earliest claimed: 2016-12-06 - Assignees: Air Squared, Inc. - Applicants: Air Squared, Inc. - Inventors: Bryce R Shaffer; Justin Mattice; John Wilson - Web page: https://patentgrep.com/patent/US10865793B2 ## CPC - F04C 29/04: Heating; Cooling (of machines or engines in general F01P); Heat insulation (heat insulation in general F16L59/00) - F01C 17/063: {with only rolling movement} - F04C 18/0215: {where only one member is moving} - F04C 27/00: Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids - F04C 27/009: {Shaft sealings specially adapted for pumps} - F04C 2240/30: Casings or housings - F04C 2240/40: Electric motor - F04C 2240/60: Shafts - F04C: ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS (engines F03C); ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS - F01C: ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES (internal-combustion aspects F02B53/00, F02B55/00) ## Abstract A scroll device is disclosed having a housing, a motor having a shaft, an orbiting scroll connected to the shaft for moving the orbiting scroll, a fixed scroll mated to the orbiting scroll, an idler shaft for aligning the orbiting scroll and the fixed scroll, an inlet formed in the housing and/or the fixed scroll for receiving a cooling liquid, and a channel formed in the idler shaft for receiving the cooling liquid. ## Claims ### Claim 1 A scroll device comprising: a housing; a motor having a shaft; an orbiting scroll connected to the shaft for moving the orbiting scroll; a fixed scroll mated to the orbiting scroll; an idler shaft for aligning the orbiting scroll and the fixed scroll, the idler shaft comprising a channel formed therein; and a cooling liquid inlet in fluid communication with the channel. ### Claim 2 (depends on 1) The scroll device of claim 1, further comprising a cooling liquid outlet in fluid communication with the channel. ### Claim 3 (depends on 2) The scroll device of claim 2, wherein the cooling liquid inlet is in fluid communication with the cooling liquid outlet via the channel. ### Claim 4 (depends on 2) The scroll device of claim 2, wherein each of the cooling liquid inlet and the cooling liquid outlet is positioned closer to the fixed scroll than the orbiting scroll. ### Claim 5 (depends on 1) The scroll device of claim 1, wherein the scroll device comprises a plurality of idler shafts for aligning the orbiting scroll and the fixed scroll, each of the idler shafts comprising the channel formed therein. ### Claim 6 (depends on 5) The scroll device of claim 5, further comprising a cooling liquid outlet, and wherein the cooling liquid inlet is in fluid communication with the cooling liquid outlet via both the channel of a first one of the plurality of idler shafts and the channel of a second one of the plurality of idler shafts. ### Claim 7 (depends on 1) The scroll device of claim 1, further comprising a fixed scroll jacket secured to the fixed scroll and an orbiting scroll jacket secured to the orbiting scroll. ### Claim 8 (depends on 7) The scroll device of claim 7, wherein the fixed scroll jacket comprises a cooling liquid outlet. ### Claim 9 (depends on 7) The scroll device of claim 7, further comprising a cooling liquid passageway between the fixed scroll jacket and the fixed scroll. ### Claim 10 (depends on 7) The scroll device of claim 7, further comprising a cooling liquid passageway between the orbiting scroll jacket and the orbiting scroll. ### Claim 11 A scroll device comprising: a housing; a motor having a shaft; an orbiting scroll connected to the shaft for moving the orbiting scroll; a fixed scroll mated to the orbiting scroll via a plurality of idler shafts, at least one of the plurality of idler shafts comprising a channel formed therein; and a cooling liquid inlet in fluid communication with the channel. ### Claim 12 (depends on 11) The scroll device of claim 11, wherein each of the plurality of idler shafts is eccentric. ### Claim 13 (depends on 11) The scroll device of claim 11, further comprising a cooling liquid outlet. ### Claim 14 (depends on 13) The scroll device of claim 13, wherein the cooling liquid inlet is in fluid communication with the cooling liquid outlet via the channel. ### Claim 15 (depends on 14) The scroll device of claim 14, wherein cooling liquid enters the cooling liquid inlet which is closer to the fixed scroll than the orbiting scroll. ### Claim 16 (depends on 15) The scroll device of claim 15, wherein at least two of the plurality of idler shafts comprise a channel formed therein, and further wherein cooling liquid passes through the channel of a first one of the plurality of idler shafts in a first direction. ### Claim 17 (depends on 16) The scroll device of claim 16, wherein the cooling liquid outlet is positioned closer to the fixed scroll than the orbiting scroll, and cooling liquid passes through the channel of a second one of the plurality of idler shafts in a second direction that opposes the first direction. ### Claim 18 A scroll device comprising: a housing; a motor having a shaft; an orbiting scroll connected to the shaft for moving the orbiting scroll; a fixed scroll mated to the orbiting scroll via at least one eccentric idler shaft, the at least one eccentric idler shaft comprising a channel formed therein, the channel extending from an outer surface of the fixed scroll to an outer surface of the orbiting scroll; and a cooling liquid inlet positioned closer to the fixed scroll than the orbiting scroll, the cooling liquid inlet in fluid communication with the channel, wherein cooling liquid enters the cooling liquid inlet and flows through the channel. ### Claim 19 (depends on 18) The scroll device of claim 18, wherein the at least one eccentric idler shaft comprises three eccentric idler shafts, each of the three eccentric idler shafts comprising a channel formed therein. ### Claim 20 (depends on 19) The scroll device of claim 19, further comprising a cooling liquid outlet positioned closer to the fixed scroll than the orbiting scroll, the cooling liquid outlet in fluid communication with the cooling liquid inlet via a path that extends through the channels of at least two of the three eccentric idler shafts.