# US 11,111,817 B2 · Cooling device for casing support part of rotary machine, rotary machine, and cooling method for casing support part of rotary machine > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,111,817 B2 - Document ID: US11111817B2 - Status: Granted - Kind: B2 - Application number: 16/086,754 - Filed: 2016-11-15 - Published: 2019-02-14 - Granted: 2021-09-07 - Earliest claimed: 2016-03-25 - Assignees: Mitsubishi Power, Ltd. - Applicants: Mitsubishi Hitachi Power Systems, Ltd. - Inventors: Tomohiro Ishida; Tomoyuki Onishi; Makoto Kondo; Takumi Matsumura; Katsuhisa Hamada - Web page: https://patentgrep.com/patent/US11111817B2 ## CPC - F01D 25/125: {of bearings} - F01D 25/08: Cooling (of machines or engines in general F01P); Heating; Heat-insulation (of blade-carrying members, of blades F01D5/00) - F01D 25/12: Cooling - F01D 25/14: Casings modified therefor (double casings F01D25/26) - F01D 25/24: Casings (modified for heating or cooling F01D25/14); Casing parts, e.g. diaphragms, casing fastenings (casings for rotary machines or engines in general F16M {; special arrangements in stators dealing with breaking-off of part of rotor F01D21/045}) - F01D 25/28: Supporting or mounting arrangements, e.g. for turbine casing - F02C 7/00: Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants (controlling F02C9/00) - F02C 7/06: Arrangements of bearings (bearings F16C); Lubricating ({of turbo machines F01D25/18; of machines or} engines in general F01M) - F02C 7/20: Mounting or supporting of plant; Accommodating heat expansion or creep - F16C 37/007: {of rolling bearings} - H02K 5/203: {specially adapted for liquids, e.g. cooling jackets} - H02K 9/19: for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil - F05D 2220/30: in turbines - F05D 2240/50: Bearings - F05D 2260/20: Heat transfer, e.g. cooling - F05D 2260/98: Lubrication - F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D) - F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00) - F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS ## Abstract In a rotary machine that includes rotating body including a rotating-body main body and a pair of rotor shaft ends fixed to the both outer sides in the shaft direction of the rotating-body main body; a casing accommodating the rotating-body main body and being penetrated by the rotor shaft ends; a bearing rotatably supporting the rotor shaft ends and having a bearing face being provided with lubricant fluid from a lubricant line; and the support part supporting the casing, the support part is cooled through heat exchanging between the lubricant fluid the support part. ## Claims ### Claim 1 A cooling device for a casing support part that cools a support part of a rotary machine that comprises: a rotating body including a rotating-body main body and a pair of rotor shaft ends fixed to both outer sides in a shaft direction of the rotating-body main body; a casing accommodating the rotating-body main body and being penetrated by the rotor shaft ends; a bearing rotatably supporting the rotor shaft ends and having a bearing face being provided with lubricant fluid from a lubricant line; and the support part supporting the casing, the cooling device comprising a heat exchanger being disposed on the lubricant line and cooling the support part through heat exchanging between the lubricant fluid and the support part, wherein the support part comprises a protruding unit protruding from a main body of the casing, and a supporting base mounting the protruding unit thereon, the heat exchanger is provided in the support part, the heat exchanger comprises a plurality of branch pipes arranged in parallel with one another in a protruding direction of the protruding unit, and the plurality of branch pipes are regulated so that the branch pipe closer to the main body of the casing is provided with more lubricating fluid. ### Claim 2 (depends on 1) The cooling device for a casing support part according to claim 1, wherein a heat insulating layer is provided to an outer surface of the main body of the casing and an outer surface of the protruding unit. ### Claim 3 (depends on 2) The cooling device for a casing support part according to claim 2, wherein the heat exchanger is incorporated in the supporting base. ### Claim 4 (depends on 3) The cooling device for a casing support part according to claim 3, wherein the lubricant line comprises a bypass line through which the lubricant fluid is provided to the bearing face, bypassing the heat exchanger; the cooling device further comprises: a flow regulating valve that regulates a distribution of a flow volume of the lubricant fluid that is to bypass the heat exchanger and a flow volume of the lubricant fluid that is to be provided to the heat exchanger; a temperature sensor that detects temperature of the support part; and a controlling device that controls operation of the flow regulating valve distribution regulating means such that the flow volume of the lubricant fluid that is to be provided to the heat exchanger increases as the temperature sensor temperature detecting means is higher. ### Claim 5 (depends on 4) A rotary machine comprising a cooling device for a casing support part defined in claim 4. ### Claim 6 (depends on 3) A rotary machine comprising a cooling device for a casing support part defined in claim 3. ### Claim 7 (depends on 2) The cooling device for a casing support part according to claim 2, wherein the lubricant line comprises a bypass line through which the lubricant fluid is provided to the bearing face, bypassing the heat exchanger; the cooling device further comprises: a flow regulating valve that regulates a distribution of a flow volume of the lubricant fluid that is to bypass the heat exchanger and a flow volume of the lubricant fluid that is to be provided to the heat exchanger; a temperature sensor that detects temperature of the support part; and a controlling device that controls operation of the flow regulating valve such that the flow volume of the lubricant fluid that is to be provided to the heat exchanger increases as the temperature detected by the temperature sensor is higher. ### Claim 8 (depends on 7) A rotary machine comprising a cooling device for a casing support part defined in claim 7. ### Claim 9 (depends on 2) A rotary machine comprising a cooling device for a casing support part defined in claim 2. ### Claim 10 (depends on 1) The cooling device for a casing support part according to claim 1, wherein the heat exchanger is incorporated in the supporting base. ### Claim 11 (depends on 10) The cooling device for a casing support part according to claim 10, wherein the lubricant line comprises a bypass line through which the lubricant fluid is provided to the bearing face, bypassing the heat exchanger; the cooling device further comprises: a flow regulating valve that regulates a distribution of a flow volume of the lubricant fluid that is to bypass the heat exchanger and a flow volume of the lubricant fluid that is to be provided to the heat exchanger; a temperature sensor that detects temperature of the support part; and a controlling device that controls operation of flow regulating valve such that the flow volume of the lubricant fluid that is to be provided to the heat exchanger increases as the temperature detected by the temperature sensor is higher. ### Claim 12 (depends on 11) A rotary machine comprising a cooling device for a casing support part defined in claim 11. ### Claim 13 (depends on 10) A rotary machine comprising a cooling device for a casing support part defined in claim 10. ### Claim 14 (depends on 1) The cooling device for a casing support part according to claim 1, wherein the lubricant line comprises a bypass line through which the lubricant fluid is provided to the bearing face, bypassing the heat exchanger; the cooling device further comprises: a flow regulating valve that regulates a distribution of a flow volume of the lubricant fluid that is to bypass the heat exchanger and a flow volume of the lubricant fluid that is to be provided to the heat exchanger; a temperature sensor that detects temperature of the support part; and a controlling device that controls operation of the flow regulating valve such that the flow volume of the lubricant fluid that is to be provided to the heat exchanger increases as the temperature detected by the temperature sensor is higher. ### Claim 15 (depends on 14) A rotary machine comprising a cooling device for a casing support part defined in claim 14. ### Claim 16 (depends on 1) A rotary machine comprising a cooling device for a casing support part defined in claim 1. ### Claim 17 A cooling method for a casing support part that cools a support part of a rotary machine that comprises: a rotating body including a rotating-body main body and a pair of rotor shaft ends fixed to both outer sides in a the shaft direction of the rotating-body main body; a casing accommodating the rotating-body main body and being penetrated by the rotor shaft ends; a bearing rotatably supporting the rotor shaft ends and having a bearing face being provided with lubricant fluid from a lubricant line; and the support part supporting the casing and comprising a protruding unit protruding from a main body of the casing, and a supporting base mounting the protruding unit thereon, the cooling method comprising cooling the support part through heat exchanging between the lubricant fluid and the support part; and providing with more lubricating fluid a part closer to the main body of the casing by using a plurality of branch pipes in the support part, the plurality of branch pipes are arranged in parallel with each other in a protruding direction of the protruding unit and are provided in the heat exchanger and are regulated so that the branch pipe closer to the main body of the casing is supplied with more lubricating fluid.