# US 2019/0315219 A1 · Active noise vibration control apparatus and method for manufacturing same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0315219 A1 - Document ID: US20190315219A1 - Status: Published application - Kind: A1 - Application number: 16/314,705 - Filed: 2017-06-23 - Published: 2019-10-17 - Earliest claimed: 2016-07-05 - Assignees: Honda Motor Co., Ltd.; National University Corporation Kanazawa University - Applicants: Honda Motor Co., Ltd.; National University Corporation Kanazawa University - Inventors: Toshio Inoue; Osamu Terashima; Toshihiko Komatsuzaki - Web page: https://patentgrep.com/patent/US20190315219A1 ## CPC - B60K 5/1283: {Adjustable supports, e.g. the mounting or the characteristics being adjustable} - B29C 45/14491: {Injecting material between coaxial articles, e.g. between a core and an outside sleeve for making a roll} - B60K 5/1208: {Resilient supports (B60K5/1241 - B60K5/1291 take precedence)} - F16F 1/361: {comprising magneto-rheological elastomers [MR], (magneto-rheological fluid dampers F16F9/535)} - F16F 1/3615: {with means for modifying the spring characteristic (F16F1/371 takes precedence)} - F16F 1/3842: {Method of assembly, production or treatment; Mounting thereof (supports for pipes, cables or protective tubing F16L3/00)} - F16F 1/387: comprising means for modifying the rigidity in particular directions {(spherical or conical sleeves F16F1/393)} - F16F 13/04: comprising both a plastics spring and a damper, e.g. a friction damper - F16F 15/022: {using dampers and springs in combination} - F16F 15/03: using {magnetic or} electromagnetic means (F16F9/53, {F16F15/005} take precedence) - G10K 11/1785: {Methods, e.g. algorithms; Devices (G10K11/1781, G10K11/1783 take precedence)} - B29K 2021/00: Use of unspecified rubbers as moulding material - B29K 2995/0008: Magnetic or paramagnetic - B29L 2031/721: {Vibration dampening equipment, e.g. shock absorbers (bumpers B29L2031/3044, springs B29L2031/774)} - B60Y 2410/134: Rheological, magneto- or electro- fluids - F16F 2222/06: Magnetic or electromagnetic - F16F 2224/025: Elastomers - F16F 2226/04: Assembly or fixing methods; methods to form or fashion parts - F16F 2228/066: Variable stiffness - G10K 2210/1282: Automobiles - G10K 2210/1291: Anti-Vibration-Control, e.g. reducing vibrations in panels or beams - G10K 2210/3211: Active mounts for vibrating structures with means to actively suppress the vibration, e.g. for vehicles - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION - G10K: SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR - B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY ## Abstract An engine mount control apparatus that is an active noise vibration control apparatus according to the present disclosure is characterized by being provided with a housing that has an outer core, an inner core that is disposed inside the outer core, and an electromagnetic coil that is positioned between the outer core and the inner core and by a portion between the outer core and the inner core being filled with a magneto-rheological elastomer containing magnetic particles. The present disclosure enables the maintenance of good static load support performance. ## Claims ### Claim at position 1 1-10. (canceled) ### Claim 11 An active noise vibration control apparatus comprising: a housing that has an outer core and is made of a material different from a material of the outer core; an inner core that is disposed inside the outer core; and an electromagnetic coil that is positioned between the outer core and the inner core, wherein a space between the outer core and the inner core is filled with a magneto-rheological elastomer containing magnetic particles. ### Claim 12 An active noise vibration control apparatus comprising: a housing that has an outer core; an inner core that is disposed inside the outer core; and an electromagnetic coil that is positioned between the outer core and the inner core, wherein a space between the outer core and the inner core is filled with a magneto-rheological elastomer containing magnetic particles; and a content rate of the magnetic particles in a magnetic path-forming portion of the magneto-rheological elastomer between the outer core and the inner core is higher than a content rate of the magnetic particles in a portion other than the magnetic path-forming portion of the magneto-rheological elastomer. ### Claim 13 (depends on 11) The active noise vibration control apparatus according to claim 11, wherein the electromagnetic coil is disposed on the outer core side and is arranged apart from the inner core. ### Claim 14 (depends on 11) The active noise vibration control apparatus according to claim 11, wherein the electromagnetic coil is disposed on the inner core side and is arranged apart from the outer core. ### Claim 15 (depends on 12) The active noise vibration control apparatus according to claim 12, wherein the magnetic path-forming portion is formed at a face-to-face section that is between the outer core and the inner core and is at a protruding portion where either one of the outer core and the inner core protrudes toward the other. ### Claim 16 (depends on 15) The active noise vibration control apparatus according to claim 15, wherein the cylindrical inner core is arranged on an inner circumference side of the cylindrical outer core; and the protruding portion protrudes from either one of the inner circumference side of the outer core and an outer circumferential side of the inner core toward the other. ### Claim 17 (depends on 16) The active noise vibration control apparatus according to claim 16, wherein the protruding portion is a flange formed on each of both end portions in an axial direction of the inner core. ### Claim 18 (depends on 17) The active noise vibration control apparatus according to claim 17, wherein the electromagnetic coil wound around the inner core is housed between the flanges of the both end portions. ### Claim 19 (depends on 15) The active noise vibration control apparatus according to claim 15, wherein the cylindrical inner core is arranged on an inner circumference side of the bottomed cylindrical outer core; and the protruding portion protrudes from a bottom portion of the outer core toward the inner core. ### Claim 20 A method for manufacturing an active noise vibration control apparatus, comprising: an arrangement step of arranging an inner core inside an outer core of a housing having the outer core and arranging an electromagnetic coil between the outer core and the inner core; an injection step of injecting a magnetic particle-containing uncured elastomer raw material into a separation space formed, inside the housing, between the outer core and the inner core; and a magneto-rheological-elastomer formation step of curing the elastomer raw material while forming a given magnetic path in the outer core, the inner core, and the injected elastomer raw material by applying a current to the electromagnetic coil. ### Claim 21 (depends on 11) The active noise vibration control apparatus according to claim 11, wherein the outer core is made of a magnetic material and the housing is made of a non-magnetic metal.