# US 12,214,647 B2 · Vehicle electric fluid machine > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,214,647 B2 - Document ID: US12214647B2 - Status: Granted - Kind: B2 - Application number: 17/683,709 - Filed: 2022-03-01 - Published: 2022-09-29 - Granted: 2025-02-04 - Earliest claimed: 2021-03-23 - Assignees: Kabushiki Kaisha Toyota Jidoshokki - Applicants: Kabushiki Kaisha Toyota Jidoshokki - Inventors: Ryuji Watanabe; Suehiro Fukazawa; Noritaka Nishimori; Takayuki Kato - Web page: https://patentgrep.com/patent/US12214647B2 ## CPC - B60H 1/3229: {characterised by constructional features, e.g. housings, mountings, conversion systems (B60H1/3227, B60H1/3233 take precedence)} - B60H 1/3222: {characterised by the compressor driving arrangements, e.g. clutches, transmissions or multiple drives (B60H1/3208, B60H1/3226 take precedence)} - B62D 21/11: with resilient means for suspension {, e.g. of wheels or engine; sub-frames for mounting engine or suspensions} - F04B 39/0044: {with vibration damping supports} - F16F 1/38: with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin {, i.e. bushing-type (hydraulically-damped bushes F16F13/14; suppression of vibrations in rotating systems by making use of elastomeric spring members between rotating elements, driveline torque being transmitted therebetween F16F15/126, by making use of a dynamic damping mass attached to a rotating element by means of elastomeric springs F16F15/14; pivots per se F16C11/00; elastic or yielding bearings or bearing supports F16C27/00; parts of sliding-contact bearings, e.g. bushes F16C33/04)} - B60H 2001/3292: {Compressor drive is electric only} - B60K 11/02: with liquid cooling - B60K 2025/005: {driven by electric motors forming part of the propulsion unit} - B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES - B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M) - F04B: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary-piston or oscillating-piston type F04C; non-positive-displacement pumps F04D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F04F) - F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION - 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 ## Abstract A vehicle electric fluid machine includes: a housing provided with a mounting leg having an insertion hole; a fastener having a shaft portion inserted into the insertion hole and a head portion at one end of the shaft portion, the fastener fastening the other end of the shaft portion to a mounting object; a sleeve disposed between the mounting leg and the shaft portion, elastic vibration dampers disposed on opposite sides of the mounting leg in its axial direction, each of the elastic vibration dampers having a cylindrical portion disposed between an inner circumferential surface of the mounting leg and an outer circumferential surface of the sleeve, and a collar extending from one of opposite ends of the cylindrical portion in a radial outward direction of the cylindrical portion; and an annular plate through which the fastening force is applied to the mounting leg through the collar. ## Claims ### Claim 1 A vehicle electric fluid machine comprising: a housing that accommodates an electric motor and has a mounting leg, the mounting leg having an insertion hole extending through end surfaces of the mounting leg in an axial direction of the mounting leg; a fastener that has a shaft portion inserted into the insertion hole and a head portion at one end of the shaft portion, the fastener fastening the other end of the shaft portion to a mounting object so that the mounting leg is mounted to the mounting object; a sleeve that is disposed between the mounting leg and the shaft portion and that receives a fastening force from the head portion; elastic vibration dampers disposed on opposite sides of the mounting leg in the axial direction of the mounting leg, each of the elastic vibration dampers having a cylindrical portion disposed between an inner circumferential surface of the mounting leg and an outer circumferential surface of the sleeve, and a collar extending from one of opposite ends of the cylindrical portion in a radial outward direction of the cylindrical portion; and an annular plate through which the fastening force received by the sleeve is applied to the mounting leg through the collar, wherein the collar and the cylindrical portion are monolithically formed, wherein the annular plate and the sleeve are monolithically formed, wherein each of the elastic vibration dampers is disposed in contact with the mounting leg and in non-adhering contact with the sleeve and the annular plate, and the annular plate has a protrusion or a recess on a contact surface of the annular plate being in contact with the collar, the protrusion or the recess is located radially inside an outer circumferential surface of the collar and located radially outside an outer circumferential surface of the cylindrical portion, the protrusion or the recess reducing elastic deformation of the collar in a radial outward direction of the collar. ### Claim 2 (depends on 1) The vehicle electric fluid machine according to claim 1, wherein the protrusion or the recess has an annular shape. ### Claim 3 (depends on 1) The vehicle electric fluid machine according to claim 1, wherein the collar has a collar-side recess into which the protrusion is fitted, or a collar-side protrusion that is fitted into the recess. ### Claim 4 (depends on 3) The vehicle electric fluid machine according to claim 3, wherein the annular plate has the protrusion, the annular plate is made of metal, and the collar has the collar-side recess into which the protrusion is fitted. ### Claim 5 (depends on 3) The vehicle electric fluid machine according to claim 3, wherein the annular plate has the recess, and the collar has the collar-side protrusion fitted into the recess. ### Claim 6 (depends on 1) The vehicle electric fluid machine according to claim 1, wherein a contact surface of the collar being in contact with the annular plate is a flat surface, and the contact surface is elastically deformed along the protrusion or the recess. ### Claim 7 (depends on 1) The vehicle electric fluid machine according to claim 1, wherein the protrusion or the recess is located radially inside the mounting leg. ### Claim 8 (depends on 1) The vehicle electric fluid machine according to claim 1, wherein the sleeve and the annular plate are integrally formed with each other. ### Claim 9 (depends on 1) The vehicle electric fluid machine according to claim 1, wherein the contact surface of the annular plate is in contact with the collar in the axial direction, and an outer circumferential surface of the annular plate is located radially outside the outer circumferential surface of the collar.