# US 10,865,703 B2 · Conduit connection assembly with pressure relief > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,865,703 B2 - Document ID: US10865703B2 - Status: Granted - Kind: B2 - Application number: 16/301,074 - Filed: 2017-01-12 - Published: 2020-06-11 - Granted: 2020-12-15 - Earliest claimed: 2016-05-20 - Assignees: Volvo Truck Corporation - Applicants: Volvo Truck Corporation - Inventors: Peter Andersson; Fredrik Rahm - Web page: https://patentgrep.com/patent/US10865703B2 ## CPC - F01N 13/08: Other arrangements or adaptations of exhaust conduits {(pipes, joints or supports therefor in general F16L; collecting or removing exhaust gases of vehicle engines in workshops B08B15/00, on highways E01C1/005)} - F02B 37/025: {Multiple scrolls or multiple gas passages guiding the gas to the pump drive} - F01M 11/02: Arrangements of lubricant conduits - F01N 13/10: of exhaust manifolds {(with cooling jacket F01N3/046)} - F01N 13/1811: {with means permitting relative movement, e.g. compensation of thermal expansion or vibration} - F01N 13/1816: {the pipe sections being joined together by flexible tubular elements only, e.g. using bellows or strip-wound pipes} - F01N 13/1827: {Sealings specially adapted for exhaust systems (sealings in general F16J15/00)} - F02B 37/18: by bypassing exhaust {from the inlet to the outlet of turbine or to the atmosphere} - F02B 39/14: Lubrication of pumps; Safety measures therefor - F02M 35/10157: {Supercharged engines} - F16J 15/004: {forming of recuperation chamber for the leaking fluid} - F16J 15/0887: {the sealing effect being obtained by elastic deformation of the packing} - F01M 2011/021: {for lubricating auxiliaries, e.g. pumps or turbo chargers} - F01N 2260/14: for modifying or adapting flow area or back-pressure - F02B 67/10: of charging or scavenging apparatus - F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16) - F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G) - F01M: LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING - F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF - F16J: PISTONS {(specially adapted for dampers F16F9/32)}; CYLINDERS; SEALINGS ## Abstract A conduit connection assembly includes a first conduit component having a first mating structure and a second conduit component having a second mating structure adapted to be mated with the first mating structure. A sealing arrangement is provided for sealing between the mating structures. The sealing arrangement includes at least two spaced sealing members defining an intermediate space and the assembly includes a pressure relief opening arranged in communication with the intermediate space between the two spaced sealing members. ## Claims ### Claim 1 A conduit connection assembly comprising: a first conduit component having a first mating structure; and a second conduit component having a second mating structure being mated with the first mating structure; a pressure relief opening; a sealing arrangement for sealing between the first mating structure and the second mating structure; wherein the sealing arrangement comprises at least two spaced sealing members defining an intermediate space; and wherein the pressure relief opening is arranged in communication with the intermediate space between the two spaced sealing members; a fluid line, which at a first end is in communication with the pressure relief opening and at a second end is in communication with an environment having a pressure being lower than a pressure prevailing on an internal side of the conduit connection assembly during an operational fluid; wherein the environment having the pressure being lower than the pressure prevailing on the internal side of the conduit connection assembly, forms a part of a main conduit for the operational fluid to be conveyed between the first conduit component and the second conduit component. ### Claim 2 (depends on 1) The conduit connection assembly according to claim 1, wherein each one of the two spaced sealing members is continuous in a circumferential direction of the conduit assembly. ### Claim 3 (depends on 1) The conduit connection assembly according to claim 1, wherein the two spaced sealing members extend in a plane transverse to and perpendicular to an axial direction of the conduit connection assembly. ### Claim 4 (depends on 1) The conduit connection assembly according to claim 1, wherein each one of the first mating structure and the second mating structure has a portion with an at least partially radial extension, extending perpendicular to the axial direction of the assembly; and wherein the sealing members are radially spaced between portions of the first mating structure and the second mating structure. ### Claim 5 (depends on 4) The conduit connection assembly according to claim 4, wherein the first mating structure portion comprises a first mating surface and the second mating structure portion comprises a second mating surface; wherein each one of the first mating surface and the second mating surface has an extension transverse to and perpendicular to an axial direction of the conduit connection assembly; and wherein the two radially spaced sealing members are arranged along the extension being transverse to and perpendicular to an axial direction of the conduit connection assembly. ### Claim 6 (depends on 1) The conduit connection assembly according to claim 1, wherein the first conduit component having a first radially projecting flange provided with the first mating structure; and wherein the second conduit component having a second radially projecting flange provided with the second mating structure. ### Claim 7 (depends on 1) The conduit connection assembly according to claim 1, wherein at least one of the first mating structure and the second mating structure comprises at least one recess; and wherein the at least two spaced sealing members are positioned in the at least one recess. ### Claim 8 (depends on 7) The conduit connection assembly according to claim 7, wherein the at least one recess is continuous in a circumferential direction of the conduit connection assembly. ### Claim 9 (depends on 7) The conduit connection assembly according to claim 7, wherein the pressure relief opening is arranged in the at least one recess. ### Claim 10 (depends on 1) The conduit connection assembly according to claim 1, wherein the first conduit component delimits at least two spaced first internal cavities for conducting a fluid; wherein the second conduit component delimits at least two spaced second internal cavities for conducting the fluid; wherein a first one of the two spaced first internal cavities is in communication with a first one of the two spaced second internal cavities and a second one of the two spaced first internal cavities is in communication with a second one of the two spaced second internal cavities; and wherein the sealing arrangement comprises at least three spaced sealing members defining the intermediate space. ### Claim 11 (depends on 1) The conduit connection assembly according to claim 1, wherein at least one first sealing member is arranged to encompass a first pair of the two spaced first internal cavities and the two spaced second internal cavities; wherein at least one second sealing member is arranged to encompass a second pair of the two spaced first internal cavities and the two spaced second internal cavities; and wherein a third sealing member is arranged to encompass both pairs of the two spaced first internal cavities and the two spaced second internal cavities. ### Claim 12 (depends on 1) The conduit connection assembly according to claim 1, wherein two first sealing members are arranged to encompass a first pair of the two spaced first internal cavities and the two spaced second internal cavities; wherein two second sealing members are arranged to encompass a second pair of the two spaced first internal cavities and the two spaced second internal cavities. ### Claim 13 (depends on 1) The conduit connection assembly according to claim 1, wherein the conduit connection assembly comprises means for fastening one of the first conduit component and the second conduit component to an external structure. ### Claim 14 (depends on 13) The conduit connection assembly according to claim 13, wherein the fastening means is arranged for fastening said the one of the first conduit component and the second conduit component to the external structure in a direction, which is transverse in relation to an axial direction of the conduit connection assembly. ### Claim 15 (depends on 1) The conduit connection assembly according to claim 1, wherein the conduit connection assembly is to convey air to be distributed to the internal combustion engine and exhaust gas to be discharged from the internal combustion engine. ### Claim 16 (depends on 1) The conduit connection assembly according to claim 1, wherein the conduit connection assembly is for a turbocharger for being connected to an internal combustion engine. ### Claim 17 (depends on 16) The conduit connection assembly according to claim 16, wherein the turbocharger comprising a housing having means for fastening the turbocharger to a cylinder block of an internal combustion engine. ### Claim 18 (depends on 16) The conduit connection assembly according to claim 16, wherein the conduit connection assembly is positioned on an upstream side of a turbine in the turbocharger and wherein the second end of the fluid line is adapted to be positioned in an exhaust line on a downstream side of the turbine. ### Claim 19 (depends on 1) The conduit connection assembly according to claim 1, wherein the first conduit component is a turbine inlet conduit of a turbocharger associated with an internal combustion engine. ### Claim 20 (depends on 1) The conduit connection assembly according to claim 1, wherein the second conduit component is an exhaust gas conveying part, which is an exhaust gas outlet manifold for conveying exhaust gases discharged from an internal combustion engine. ### Claim 21 (depends on 1) The conduit connection assembly according to claim 1, wherein the first conduit component is a compressor outlet conduit of a turbo charger for an internal combustion engine. ### Claim 22 (depends on 21) The conduit connection assembly according to claim 21, wherein the second conduit component is an air inlet conduit for an internal combustion engine. ### Claim 23 (depends on 1) The conduit connection assembly according to claim 1, wherein the second conduit component is an air inlet conduit for an internal combustion engine. ### Claim 24 A turbocharger comprising a conduit component being assembled to another conduit component; wherein the conduit component has a first mating structure for mating with a second mating structure of the another conduit component; wherein the first mating structure further comprises: a pressure relief opening for being arranged in communication with an intermediate space between two spaced sealing members of a sealing arrangement for sealing between the first mating structure and the second mating structure; wherein the two spaced sealing members define the intermediate space in an assembled state; and wherein the conduit component is positioned on an upstream side of a turbine in the turbocharger, wherein the turbocharger comprises a fluid line, which at a first end is in communication with the pressure relief opening and at a second end is positioned in an exhaust line on a downstream side of the turbine. ### Claim 25 (depends on 24) The turbocharger according to claim 24, wherein the turbocharger comprises means for fastening the turbocharger to an external structure in a direction, which is transverse in relation to an axial direction of the turbocharger. ### Claim 26 (depends on 24) The turbocharger according to claim 24, wherein the turbocharger comprises a housing having means for fastening the turbocharger to a cylinder block of an internal combustion engine. ### Claim 27 (depends on 24) The internal combustion engine system comprising an internal combustion engine and a turbocharger according to claim 24, wherein a conduit component interface connection defines a first fluid conducting volume which is, in an assembled state, associated to a second fluid conducting volume in the internal combustion engine system; and wherein the pressure relief opening is to provide a communication between the intermediate space and the second fluid conducting volume. ### Claim 28 (depends on 27) The internal combustion engine system according to claim 27, wherein the system comprises a fluid line, which at a first end is in communication with the pressure relief opening and which at a second end is to be in communication with an environment having a pressure being lower than a pressure prevailing on an internal side of the first mating structure during an operational fluid. ### Claim 29 A conduit connection assembly comprising; a first conduit component having a first mating structure; a second conduit component having a second mating structure being mated with the first mating structure; a pressure relief opening: a sealing arrangement for sealing between the first mating structure and the second mating structure; wherein the sealing arrangement comprises at least two spaced sealing members defining an intermediate space; and wherein the pressure relief opening is arranged in communication with the intermediate space between the two spaced sealing members; a fluid line, which at a first end is in communication with the pressure relief opening and at a second end is in communication with an environment having a pressure being lower than a pressure prevailing on an internal side of the conduit connection assembly during an operational fluid; wherein the environment having the pressure being lower than the pressure prevailing on the internal side of the conduit connection assembly, is separate from a main conduit for the operational fluid to be conveyed between the first conduit component and the second conduit component, and wherein the environment having the pressure being lower than the pressure prevailing on the internal side of the conduit connection assembly is formed by a space for collection of a fluid. ### Claim 30 (depends on 29) The conduit connection assembly according to claim 29, wherein the environment having the pressure lower than the pressure prevailing on the internal side of the conduit connection assembly is formed by a space for collection of an oil for evacuation of the oil after use. ### Claim 31 An internal combustion engine system comprising: a conduit connection assembly; wherein the conduit connection assembly further comprises: a first conduit component having a first fluid conducting volume and a first mating structure; a second conduit component having a second fluid conducting volume and a second mating structure being mated with the first mating structure; wherein the first fluid conducting volume being in an assembled state is associated to the second fluid conducting volume in the internal combustion engine system; a pressure relief opening; a sealing arrangement for sealing between the first mating structure and the second mating structure; wherein the sealing arrangement comprises at least two spaced sealing members defining an intermediate space; and a fluid one, which at a first end is in communication with the pressure relief opening and at a second end is in communication with an environment having a pressure being lower than a pressure prevailing on an internal side of the conduit connection assembly during an operational fluid; wherein the pressure relief opening is arranged in communication with the intermediate space between the two spaced sealing members; wherein the pressure relief opening is provided a communication between the intermediate space and the second fluid conducting volume; and wherein the environment having the pressure being lower than a pressure prevailing on an internal side of the conduit connection assembly, forms a part of a main conduit for an operational fluid to be conveyed between the first conduit component and the second conduit component. ### Claim 32 (depends on 31) The internal combustion engine system according to claim 31, wherein the second end of the fluid pressure relief line is positioned in an exhaust line downstream of the first end. ### Claim 33 (depends on 31) The internal combustion engine system according to claim 31, wherein the internal combustion engine system comprises a turbocharger, wherein the conduit connection assembly is positioned on an upstream side of a turbine of the turbocharger; and wherein the second end of the fluid pressure relief line is positioned in an exhaust line on a downstream side of the turbine of the turbocharger. ### Claim 34 An internal combustion engine system comprising: a conduit connection assembly; wherein the conduit connection assembly further comprises: a first conduit component having a first fluid conducting volume and a first mating structure; a second conduit component having a second fluid conducting volume and a second mating structure being mated with the first mating structure; wherein the first fluid conducting volume being in an assembled state is associated to the second fluid conducting volume in the internal combustion engine system; a pressure relief opening; a sealing arrangement for sealing between the first mating structure and the second mating structure; wherein the sealing arrangement comprises at least two spaced sealing members defining an intermediate spaced; and a fluid line which at a first end is in communication with the pressure relief opening and at a second end is in communication with an environment having a pressure being lower than a pressure prevailing on an internal side of the conduit connection assembly an operational fluid; wherein the pressure relief opening is arranged in communication with the intermediate space between the two spaced sealing members; and wherein the pressure relief opening is provided a communication between the intermediate space and the second fluid conducting volume; wherein the second end of the fluid pressure relief line is positioned separate from a main conduit for an operational fluid to be conveyed between the first conduit component and the second conduit component; wherein the environment the pressure being lower than a pressure prevailing on the internal side of the conduit connection assembly, is separate from a main conduit for the operational fluid to be conveyed between the first conduit component and the second conduit component; and wherein the environment having the pressure being lower than a pressure prevailing on the internal side of the conduit connection assembly is formed by a space for collection of a fluid.