# US 11,078,832 B2 · Bearing system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,078,832 B2 - Document ID: US11078832B2 - Status: Granted - Kind: B2 - Application number: 16/680,575 - Filed: 2019-11-12 - Published: 2020-05-14 - Granted: 2021-08-03 - Earliest claimed: 2018-11-12 - Assignees: BorgWarner Inc. - Applicants: BorgWarner Inc. - Inventors: Aleksandar Vuletic; Jason Robert Walkingshaw; Sascha Karstadt - Web page: https://patentgrep.com/patent/US11078832B2 ## CPC - F02B 37/225: {air passages} - F04D 29/464: {adjusting flow cross-section, otherwise than by using adjustable stator blades} - F02B 33/44: Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs - F04D 29/4213: {suction ports} - F16C 23/10: Bearings, parts of which are eccentrically adjustable with respect to each other - F05D 2220/40: in turbochargers - F05D 2250/51: Inlet - F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G) - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) - F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS ## Abstract The present invention relates to an actuation device for a compressor inlet adjustment mechanism. The actuation device comprises a housing part and a lever assembly. The lever assembly comprises a bearing section, an input section and an output section. The output section is configured to be coupled to an adjustment ring of the adjustment mechanism on a first side of the housing part. The input section can be coupled to an actuator rod on a second side of the housing part. The lever assembly is rotatably mounted in the housing part via the bearing section on the compressor inlet side here. ## Claims ### Claim 1 An adjustment mechanism (200) for variable adjustment of a compressor inlet (22) comprising: a rotationally moveable adjustment ring (210); and a plurality of orifice plate elements (220) which are rotatably mounted and operatively coupled to the adjustment ring (210); wherein the adjustment mechanism (200) comprises an actuation device (10) comprising: a housing part (150); and a lever assembly (100) with a bearing section (120), an input section (110) and an output section (130); wherein the output section (130) is configured to be coupled to the adjustment ring (210) of the adjustment mechanism (200) on a first side (157) of the housing part (150) and in that the input section (110) can be coupled to an actuator rod on a second side (159) of the housing part (150), wherein the lever assembly (100) is rotatably mounted in the housing part (150) via the bearing section (120) on an inlet side of the compressor, and wherein an axis of rotation (22′) of the bearing section (120) is parallel to a compressor axis of the compressor inlet (22). ### Claim 2 (depends on 1) The adjustment mechanism (200) according to claim 1, wherein a joined assembly is formed through the bearing section (120) and at least either the input section (110) or the output section (130). ### Claim 3 (depends on 2) The adjustment mechanism (200) according to claim 2, wherein a second joined assembly is formed through the bearing section (120) and the other of either the input section (110) or the output section (130) respectively. ### Claim 4 (depends on 3) The adjustment mechanism (200) according to claim 3, wherein the joined assembly comprises a welded connection. ### Claim 5 (depends on 3) The adjustment mechanism (200) according to claim 3, wherein the bearing section (120) and the other of either the input section (110) or the output section (130) respectively are configured as one part. ### Claim 6 (depends on 2) The adjustment mechanism (200) according to claim 2, wherein the joined assembly comprises a welded connection. ### Claim 7 (depends on 1) The adjustment mechanism (200) according to claim 1, wherein the output section (130) has a first lever arm (132) with a first end region (132a) and a second opposite end region (132b), wherein the first lever arm (132) is firmly connected to the bearing section (120) via the first end region (132a). ### Claim 8 (depends on 1) The adjustment mechanism (200) according to claim 1, wherein the output section (130) is configured to enter into operative engagement with a corresponding recess (214) in the adjustment ring (210) of the adjustment mechanism (200) via a pin (134). ### Claim 9 (depends on 1) The adjustment mechanism (200) according to claim 1, wherein the bearing section (120) has a first end (122) and a second end (124), wherein the first end (122) is arranged on the first side (157) of the housing part (150) and wherein the second end (124) is arranged on the second side (159) of the housing part (150). ### Claim 10 (depends on 9) The adjustment mechanism (200) according to claim 9, wherein the output section (130) is arranged at the first end (122) of the bearing section (120) and in that the input section (110) is arranged at the second end (124) of the bearing section (120). ### Claim 11 (depends on 1) The adjustment mechanism (200) according to claim 1, wherein the housing part (150) has a cylindrical section (152) and a flange section (154). ### Claim 12 (depends on 11) The adjustment mechanism (200) according to claim 11, wherein the flange section (154) comprises a bore (156) in which the bearing section (120) is arranged. ### Claim 13 (depends on 1) The adjustment mechanism (200) according to claim 1, wherein the lever assembly (100) is rotationally limited. ### Claim 14 (depends on 1) The adjustment mechanism (200) according to claim 1, wherein the adjustment ring (210) comprises at least one coupling recess (214) and preferably precisely one coupling recess (214) for coupling to the lever assembly (100). ### Claim 15 (depends on 14) The adjustment mechanism (200) according to claim 14, wherein the coupling recess (214) follows a groove-shaped course in a substantially radial direction (24). ### Claim 16 (depends on 1) A compressor (300) comprising: a compressor housing (320) and a compressor wheel (310) arranged therein, wherein the compressor housing (320) defines a compressor inlet (322) and a compressor outlet (324) with a compressor volute (326); wherein the compressor (300) comprises the adjustment mechanism (200) according to claim 1. ### Claim 17 (depends on 16) A charging device (400) comprising: a drive unit (410); and a shaft (420); the compressor (300) according to claim 16, wherein the compressor wheel (310) of the compressor (300) is coupled to the drive unit (410) via the shaft (420). ### Claim 18 A method of assembling a compressor (300) comprising the following steps: providing a compressor housing (320); providing an adjustment mechanism (200) comprising: providing an actuation device (10) comprising: providing a housing part (150), a bearing section (120), an input section (110) and an output section (130); feeding the bearing section (120) through a bore (156) in the housing part (150); joining the bearing section (120) to at least either the input section (110) or the output section (130); and providing an assembly group consisting of a plurality of orifice plate elements (220) which are rotatably mounted and operatively coupled to an adjustment ring (210); and attaching the adjustment mechanism (200) to the compressor housing (320). ### Claim 19 (depends on 18) The method according to claim 18, wherein the bearing section (120) and either the input section (110) or the output section (130) are provided as one part before the bearing section (120) is then fed through the bore (156) in the housing part (150) and then joined to the other of either the input section (110) or the output section (130). ### Claim 20 (depends on 18) The method according to claim 18, wherein the bearing section (120) is joined to at least either the input section (110) or the output section (130) through a welding process. ### Claim 21 (depends on 18) The method according to claim 18, wherein the provided assembly group further consists of a bearing ring (230).