# US 11,306,633 B2 · Oil separating device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,306,633 B2 - Document ID: US11306633B2 - Status: Granted - Kind: B2 - Application number: 16/952,788 - Filed: 2020-11-19 - Published: 2021-05-20 - Granted: 2022-04-19 - Earliest claimed: 2019-11-20 - Assignees: Bruss Sealing Systems GmbH - Applicants: Bruss Sealing Systems GmbH - Inventors: Torge Hinz; Artur Knaus; Stephan Rust; Manfred Brand - Web page: https://patentgrep.com/patent/US11306633B2 ## CPC - F01M 13/0416: {arranged in valve-covers} - F01M 2013/0433: {with a deflection device, e.g. screen} - F01M: LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING ## Abstract The present invention relates to an oil separating device for crankcase ventilation of an internal combustion engine, comprising an oil separator having a gas inlet line, which has an outlet end, and a gap-defining element, wherein the gas inlet line for flowing blow-by gas has an inner wall and an outer wall, wherein an inner annular gap is formed or can be formed between the gap-defining element and the outlet end on the inner wall of the gas inlet line and an outer annular gap is formed or can be formed between the gap-defining element and the outlet end of the outer wall of the gas inlet line, wherein, in the flow direction, an inner baffle is arranged behind the inner annular gap and an outer baffle is arranged behind the outer annular gap. ## Claims ### Claim 1 An oil separating device for crankcase ventilation of an internal combustion engine, comprising: an oil separator, wherein the oil separator comprises: a gas inlet line for flowing blow-by gas in a flow direction, wherein the gas inlet line has an outlet end; and a gap-defining element, wherein the gas inlet line has an inner wall and an outer wall, wherein an inner annular gap is formed between the gap-defining element and an outlet end of the inner wall of the gas inlet line, and an outer annular gap is formed between the gap-defining element and an outlet end of the outer wall of the gas inlet line, wherein, in the flow direction, an inner baffle is arranged behind the inner annular gap and an outer baffle is arranged behind the outer annular gap. ### Claim 2 (depends on 1) The oil separating device according to claim 1, wherein the inner annular gap and the outer annular gap are arranged concentrically. ### Claim 3 (depends on 1) The oil separating device according to claim 1, wherein the inner annular gap and the outer annular gap are arranged in a common plane. ### Claim 4 (depends on 1) The oil separating device according to claim 1, wherein the inner baffle and the outer baffle are arranged concentrically to one another. ### Claim 5 (depends on 1) The oil separating device according to claim 1, wherein the inner baffle and the outer baffle have an annular design. ### Claim 6 (depends on 1) The oil separating device according to claim 1, wherein a carrier of the gap-defining element is inserted and connected into a carrier of the baffle with the gap-defining element. ### Claim 7 (depends on 6) The oil separating device according to claim 6, wherein the carrier of the gap-defining element and the carrier of the baffle are in one piece, wherein the gap-defining element is inserted and connected into the carrier of the gap-defining element. ### Claim 8 (depends on 1) The oil separating device according to claim 1, further comprising: a spring; a spring preloading element; and a carrier attached to the gas inlet line, which are configured to effect spring preloading onto the gap-defining element with respect to the gas inlet line. ### Claim 9 (depends on 8) The oil separating device according to claim 8, wherein a latch is provided between the spring preloading element and the carrier attached to the gas inlet line. ### Claim 10 (depends on 8) The oil separating device according to claim 8, wherein at least two stepped latches are provided between the spring preloading element and the carrier attached to the gas inlet line. ### Claim 11 (depends on 1) The oil separating device according to claim 1, further comprising: a driven actuator for adjusting the gap-defining element relative to the outlet end of the gas inlet line. ### Claim 12 (depends on 1) The oil separating device according to claim 1, wherein the inner annular gap and the outer annular gap have the same gap width (s). ### Claim 13 (depends on 1) A system for crankcase ventilation of an internal combustion engine, comprising: an oil separating device according to claim 1; and an electronic control for adjusting, controlling or regulating a gap width (s) of the outer annular gap of the oil separator or a gap width (s) of the inner annual gap by correspondingly triggering an actuator. ### Claim 14 (depends on 13) The system according to claim 13, wherein the electronic control adjusts, controls or regulates the gap width (s) on the basis of one or more signals from at least one pressure sensor, or at least one differential pressure sensor, or on the basis of an engine map. ### Claim 15 (depends on 14) The system according to claim 14, wherein the electronic control adjusts, controls or regulates the gap width (s) on the basis of one or more signals from at least one pressure sensor. ### Claim 16 (depends on 14) The system according to claim 14, wherein the electronic control adjusts the gap width (s) on the basis of one or more signals from at least one pressure sensor. ### Claim 17 (depends on 13) The system according to claim 13, wherein the electronic control controls the gap width (s) in such a way that the gap width s is reduced with increasing engine load. ### Claim 18 (depends on 13) The system according to claim 13, wherein the inner annular gap and the outer annular gap have the same gap width (s). ### Claim 19 (depends on 13) The system according to claim 13, wherein the electronic control adjusts, controls or regulates the gap width (s) of the outer annular gap of the oil separator and the gap width (s) of the inner annual gap by correspondingly triggering an actuator. ### Claim 20 (depends on 13) The system according to claim 13, wherein the electronic control adjusts the gap width (s) of the outer annular gap of the oil separator and the gap width (s) of the inner annual gap by correspondingly triggering an actuator.