# US 11,078,875 B2 · Vibration damping system for injection systems of motor vehicles, in particular for fuel injection systems, and injection system including such a vibration damping system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,078,875 B2 - Document ID: US11078875B2 - Status: Granted - Kind: B2 - Application number: 16/754,361 - Filed: 2018-09-20 - Published: 2020-07-30 - Granted: 2021-08-03 - Earliest claimed: 2017-11-15 - Assignees: Robert Bosch GmbH - Applicants: Robert Bosch GmbH - Inventors: Andreas Rehwald; Ralf Weber - Web page: https://patentgrep.com/patent/US11078875B2 ## CPC - F02M 55/025: {Common rails} - F02M 61/14: Arrangements of injectors with respect to engines; Mounting of injectors - F16F 7/1005: {characterised by active control of the mass} - F16F 7/104: the inertia member being resiliently mounted {(F16F7/1022 takes precedence)} - F16F 15/02: Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems ({F16F15/005 takes precedence } ; layered products B32B; suppression of vibration in ships B63; {relieving load on bearings, using magnetic means F16C39/06}) - F02M 55/005: {for high pressure conduits, e.g. connected to pump outlet or to injector inlet} - F02M 2200/09: Fuel-injection apparatus having means for reducing noise - F02M 2200/302: using electrical means - F02M 2200/856: characterised by mounting injector to fuel or common rail, or vice versa - F02M 2200/858: sealing arrangements between injector and engine - F02M 2200/9015: Elastomeric or plastic materials - F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF - F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION ## Abstract A vibration damping system for injection systems of motor vehicles includes an actively controllable actuator element, which is situated at a component of the injection system. The actuator element is situated at the component in such a way that, during operation of the injection system a vibration reduction of the injection system is achieved with the aid of an active control of the actuator element. ## Claims ### Claim 1 A vibration damping system for an injection system of a motor vehicle, comprising: at least one actively controllable actuator element which is situated at a component of the injection system, the actuator element being situated at the component in such a way that, during operation of the injection system, a vibration reduction of the injection system is achieved using an active control of the actuator element, wherein the actively controllable actuator element is situated between a connecting piece of a fluid-conducting component of the fuel injection system and a connector of a metering valve. ### Claim 2 (depends on 1) The vibration damping system as recited in claim 1, further comprising: a control unit configured to, during operation of the injection system, actively control the actuator element, the control unit configured in such a way that, during operation of the injection system, the vibration reduction of the injection system is achieved using the active control of the actuator element, which enables a damping of a sound emission of the injection system and/or a reduction of at least one vibration load of the injection system. ### Claim 3 (depends on 2) The vibration damping system as recited in claim 2, further comprising: an injection control unit for the injection system, the injection control unit configured to control at least one metering valve of the injection system and/or to detect at least one operating variable of the injection system, the control unit being integrated into the injection control unit, and is configured to controls the actuator element as a function of the control of the metering valve and/or the operating variable of the injection system. ### Claim 4 (depends on 1) The vibration damping system as recited in claim 1, wherein the connector of the metering valve is suspended on the connecting piece of the fluid-conducting component using the actively controllable actuator element. ### Claim 5 (depends on 1) The vibration damping system as recited in claim 1, wherein an additional actively controllable actuator element is situated freely at an outer side of a fluid-conducting component of the fuel injection system. ### Claim 6 (depends on 1) The vibration damping system as recited in claim 1, wherein an additional actively controllable actuator element is supported at an outer side of a fluid-conducting component of the fuel injection system and/or at or in a holder of the injection system. ### Claim 7 (depends on 6) The vibration damping system as recited in claim 6, wherein the additional actively controllable actuator element is supported at the holder which is connected to a fixed bearing, or at a fixed bearing. ### Claim 8 (depends on 1) The vibration damping system as recited in claim 1, wherein the fluid-conducting component is a fluid distributor which is configured to store and/or distribute fluid among multiple metering valves. ### Claim 9 An injection system for mixture-compressing, spark ignition internal combustion engines, the system comprising: at least one fluid-conducting component; at least one component configured as a metering valve; and a vibration damping system including at least one actively controllable actuator element which is situated at a component of the injection system, the actuator element being situated at the component in such a way that, during operation of the injection system, a vibration reduction of the injection system is achieved using an active control of the actuator element, wherein the actively controllable actuator element is situated between a connecting piece of a fluid-conducting component of the fuel injection system and a connector of a metering valve.