Noise attenuator and vehicle air intake duct provided therewith

A noise attenuator which can reduce time and cost for installation thereof as compared with the conventional configuration and a vehicle air intake duct provided with the noise attenuator are provided. The noise attenuator includes a pair of circular through holes formed through a duct wall, a pair of wave transmitting/receiving membrane which are stretched so as to close the circular through holes, and a seesaw member which connects between central portions of the paired transmitting/receiving membranes. Accordingly, when one of the membranes receives a sound wave of noise thereby to be vibrated at a predetermined frequency, the other membrane follows it and is also vibrated while shifted by a half cycle. As a result, a cancellation wave with a phase opposite to the sound wave received by the one membrane is transmitted from the other membrane, whereupon the noise can be attenuated.

Tubular body soundproof cover and covered tubular body

A purpose is to provide a tubular body soundproof cover and a covered tubular body, for which elastic deformation of the tubular body is unlikely to be inhibited. The tubular body soundproof cover includes a sound absorbing layer arranged on outside in an axially perpendicular direction of a tubular body having tubular body side curved sections; a skin layer arranged on outside in the axially perpendicular direction of the sound absorbing layer; and cover side curved sections arranged on outside in the axially perpendicular direction of the tubular body side curved sections, including at least a portion of the sound absorbing layer and at least a portion of the skin layer. The cover side curved sections have non-adherent sections in which the sound absorbing layer and the skin layer are not bonded over the entire circumferential length.

AIR INTAKE SYSTEM FOR A COMMERCIAL VEHICLE, IN PARTICULAR A TRUCK

An air intake system for a commercial vehicle is disclosed. The air intake system includes a hood with at least one frontal intake opening through which air to be guided to an engine of the commercial vehicle can flow and with at least one plenum configured to receive air flowing through the intake opening. The air intake system further includes at least one air pipe having at least one air duct with at least one inlet opening through which the air flowing through the frontal intake opening can flow, the air duct arranged upstream of and fluidically connected with the plenum so as to guide the air to and into the plenum. The air intake system additionally includes at least one air filter and at least one silencer plate arranged upstream of the air filter, the silencer plate having a plurality of through openings through which the air can flow. 1. An air intake system for a commercial vehicle , comprising: a frontal intake opening through which air to be guided to an engine of the commercial vehicle is flowable; and', 'a plenum configured to receive air flowing through the frontal intake opening;, 'a hood, wherein the hood at least partially covers an engine compartment of the commercial vehicle and wherein the hood includesan air pipe having an air duct with an inlet opening through which air flowing through the frontal intake opening is flowable, wherein the air duct is disposed upstream of, and is fluidically connected with, the plenum so as to guide air to and into the plenum, wherein the air pipe and the hood are configured as individual components which are removably connected with each other at least indirectly;an air filter; anda silencer plate disposed upstream of the air filter, wherein the silencer plate has a plurality of through openings through which air is flowable.2. The air intake system according to claim 1 , wherein the inlet opening faces downwards in a vertical direction of the commercial vehicle.3. The air intake system according to claim 1 , ...

ACOUSTIC ATTENUATION DEVICE FOR AN INTAKE LINE

The invention relates to an acoustic attenuation device () for a turbocharger, or for a supercharger, arranged along an air intake line of a vehicle. The attenuation device () comprises a gas supply pipe () having a peripheral wall () and a diameter (d), the pipe () comprising at least one annular chamber () defined by a diameter (d) greater than the diameter (d) of the pipe (), the or each annular chamber () being sealed by a wall () comprising porous material that is positioned in the extension of the peripheral wall () of the pipe (), according to a diameter (d) substantially equal to the diameter of the pipe (), in order to allow air to flow between the pipe () and the or each peripheral chamber (). 1. An acoustic attenuation device for an intake line of a thermal combustion engine equipped with a turbocompressor , characterized in that the attenuation device comprises a gas conveying conduit having a peripheral wall and a diameter , the conduit comprising at least one radial annular chamber defined by a diameter greater than the diameter of the conduit , the or each annular chamber being closed by a wall comprising a porous material , positioned in the extension of the peripheral wall of the conduit , according to a diameter substantially equal to the diameter of the conduit , in order to allow an air circulation between the conduit and the or each peripheral chamber.2. The acoustic attenuation device according to claim 1 , characterized in that the attenuation device has a compartment which comprises an outer wall and an inner wall formed by a portion of the peripheral wall of the conduit claim 1 , the portion of the peripheral wall of the conduit having a plurality of orifices such that the compartment and said portion having a plurality of orifices form an absorptive silencer.3. The acoustic attenuation device according to claim 2 , characterized in that the attenuation device comprises two annular chambers positioned on either side of the absorptive ...

ENGINE AIR INDUCTION RESISTIVE FOAM ELEMENT SOUND ABSORBER AND SILENCER

A tunable, noise-attenuating resistive silencer assembly for use with an internal combustion engine is disclosed. The resistive silencer assembly incorporates a resistive silencer material. The assembly includes an intake duct having air inlet and outlet ends, an acoustic absorbing material support structure positioned between the air inlet and air outlet ends, and an acoustic absorbing element supported by the acoustic absorbing material support structure. The acoustic absorbing element has a defined and non-amorphous shape. The air enters the air inlet end, passes by the acoustic absorbing material, and exits the air outlet end. The acoustic absorbing element is formed from a foam material that may be open cell or closed cell. If open cell foam, the material may be either a low density or high density polyurethane foam. If closed cell foam, the material may be crushed, closed-celled ethylene propylene dieme or polyvinyl nitrile foam. 1. A noise attenuation device for an internal combustion engine air induction system , comprising:an intake duct having air inlet and outlet ends;an acoustic absorbing material support structure operatively associated with said intake duct and positioned between said ends; andan acoustic absorbing element supported by said support structure, said acoustic absorbing element having a defined and non-amorphous shape, whereby air enters said inlet, passes by said acoustic absorbing material, and exits said outlet.2. The noise attenuation device of claim 1 , wherein said acoustic absorbing element is formed from a foam material.3. The noise attenuation device of claim 2 , wherein said foam material is open cell foam.4. The noise attenuation device of claim 3 , wherein said open cell foam is polyurethane foam.5. The noise attenuation device of claim 3 , wherein said open cell foam is selected from the group consisting of high density foam and low density foam.6. The noise attenuation device of claim 2 , wherein said foam material is closed ...

Air Duct of an Internal Combustion Engine

An air duct of an internal combustion engine has an inner pipe providing a flow channel and a housing with a first housing part and a second housing part, wherein the inner pipe is arranged in the housing. The first housing part and the second housing part enclose a chamber between the inner pipe and the housing. The inner pipe has at least one section with perforations in a wall of the inner pipe, wherein the perforations completely penetrate the wall of the inner pipe. A cylindrical acoustic component at least partially encloses the at least one section of the inner pipe at an outer side of the inner pipe. A wall of the cylindrical acoustic component is provided, at least in sections thereof, with continuous openings. The flow channel is acoustically connected via the perforations and via the continuous openings to the chamber.

Intake duct for internal combustion engine

An intake duct for an internal combustion engine includes a tubular side wall. The side wall includes a first molded body and a second molded body that are separate from each other in a circumferential direction of the side wall. The first molded body includes first and second joints. The second molded body includes first and second joints. The first and second joints of the first molded body and the first and second joints of the second molded body are joined to each other. The first molded body includes a rib protruding toward the second molded body and extending in an axial direction of the side wall. The rib is located inward from the first and second joints of the first molded body. The second molded body includes an accommodation recess that accommodates the rib. The accommodation recess is located outward from the rib.

AIR FILTERING DEVICE IN AN AIR INTAKE LINE OF AN INTERNAL COMBUSTION ENGINE

A filtering device including an inlet orifice, an outlet orifice, and a housing, the housing including an inlet compartment and a filtering element arranged in the housing between the inlet compartment and the outlet compartment so as to filter the flow of air, where the filtering device includes a deflector arranged in the inlet compartment and opposite the inlet orifice so as to deflect the flow of dirty air penetrating into the inlet compartment. 1. A filtering device , for filtering a flow of air in an air intake line of an internal combustion engine , the filtering device comprising:an inlet orifice designed for the passage of a flow of dirty air laden with solid and/or liquid particles;an outlet orifice designed for the passage of a flow of filtered air;a housing comprising i) at least one inlet compartment into which the inlet orifice opens, and ii) at least one filter, arranged in the housing between the inlet compartment and the outlet orifice so as to filter the flow of air which flows into the housing between the inlet orifice and the outlet orifice;wherein the filtering device further comprises a deflector arranged in the inlet compartment and opposite the inlet orifice so as to deflect the flow of dirty air penetrating into the inlet compartment.2. The filtering device according to claim 1 , in which a surface area of greatest cross section of the deflector claim 1 , measured substantially parallel to the inlet orifice claim 1 , is greater than a passage cross section defined by the inlet orifice.3. The filtering device according to claim 2 , in a deflection ratio (L/D) ranges between 0.05 and 1.5 claim 2 , where:L is a distance between the inlet orifice and said greatest cross section of the deflector; andD is a transverse dimension of the inlet orifice.4. The filtering device according to claim 1 , in which the deflector comprises:an envelope which defines a cavity and which has, on a side of the inlet orifice, at least one collection hole extending ...

Intake manifold with impressions for improved nvh performance

The disclosed inventive concept provides an intake manifold for an internal combustion engine that demonstrates reduced NVH. The disclosed inventive concept provides an intake manifold having intersecting ribs that extend along both the plenum and the intake runners. Impressions or recessed areas are selectively disposed at critical locations between certain ones of the intersecting ribs. Flat areas are formed between each impression and the adjacent ribs. The shapes of the impressions may be polygonal, round or oval or mixture thereof. The thickness of the intake manifold wall may be constant or variable. The location, shape and depth of each of the impressions are selected to thereby optimize both NVH and flow performances. These impressions provide additional localized stiffness that improves high frequency noise without increasing wall thickness, weight, design complexity, or overall cost of tooling, material or manufacture. The disclosed inventive concept reduces intake manifold NVH particularly at higher frequencies.

Filter Muffler for an Exhaust Gas Turbocharger of an Internal Combustion Engine

The invention relates to a filter muffler ( 10 ) comprising a front element ( 11 ), a rear element ( 12 ), and a plurality of damping elements ( 20 ) which are arranged between the front element ( 11 ) and the rear element ( 12 ). The damping elements ( 20 ) are arranged radially about a central axis ( 16 ) of the filter muffler such that a flow channel ( 30 ) is formed between each pair of adjacent damping elements. The respective downstream ends ( 22 ) of the damping elements ( 20 ) each have a diffuser element ( 23 ) which has a downstream tapering. An angle α between two opposing sides of the diffuser element ( 23 ) is selected from a range of 1°≤α≤8°.

INTAKE APPARATUS OF ENGINE FOR OUTBOARD MOTOR

There is provided an intake apparatus of an engine for an outboard motor. An intake manifold, a throttle body and an intake silencer box are arranged at one side of an engine block configured such that an axial direction of a cylinder coincides with a front and rear direction of the outboard motor. The intake silencer box includes a main body part having a first air passage configured to guide air in the axial direction of the cylinder and coupled to the upstream end of the throttle body, and a cover part having a second air passage coupled to the first air passage and opened to an outside. An air filter element arranged orthogonal to an air flowing direction and interposed between the first air passage and the second air passage is fixed to a mating surface of the main body part and cover part. 1. An intake apparatus of an engine for an outboard motor in which an intake manifold , a throttle body coupled to an upstream end of the intake manifold and an intake silencer box coupled to an upstream end of the throttle body are arranged at one of right and left sides of an engine block which is configured such that an axial direction of a cylinder coincides with a front and rear direction of the outboard motor ,wherein the intake silencer box comprises a main body part which has a first air passage configured to guide air for combustion in the axial direction of the cylinder and having a downstream end coupled to the upstream end of the throttle body, and a cover part which has a second air passage having a downstream end coupled to the first air passage and an upstream end is opened to an outside, andwherein an air filter element arranged on a plane orthogonal to an air flowing direction in the first air passage and interposed between an upstream end of the first air passage and the downstream end of the second air passage is fixed to a mating surface of the main body part and cover part of the intake silencer box.2. The intake apparatus according to claim 1 ,wherein ...

Noise attenuation in a check valve unit or apparatus for producing vacuum

Check valve units having one or more sound attenuating members are disclosed. A check valve unit includes a housing defining an inlet port, an outlet port, and a chamber in fluid communication therewith thereby defining a flow path from the inlet port through the chamber to the outlet port. The chamber includes first and second valve seats and has a sealing member disposed therein that is moveable from a position seated on the first valve seat to a position seated on the second valve seat. A sound attenuating member is disposed in the flow path downstream of the chamber, within the chamber, or both. In another embodiment, the check valve unit includes a Venturi portion in fluid communication with the chamber. The Venturi portion has a fluid junction with the flow path downstream of the chamber or forms the discharge section of the Venturi portion thereby defining the outlet port.

Air cleaner housing for a vehicle

The invention relates to an air cleaner housing for a vehicle, comprising an outer and an inner circumferential wall, and a space therebetween adapted to house at least one filter element for filtering air, wherein the inner circumferential wall is provided with openings to allow filtered air to pass radially inwardly through the inner circumferential wall. The air cleaner housing comprises a first end and an open second end for fluidly connecting the air cleaner housing to a turbo, the open second end being located opposite the first end. The air cleaner housing comprises a resonator, wherein the entire resonator is encircled by the inner circumferential wall such that air entering through the inner circumferential wall passes on the outside of the resonator to and through the open second end.

INTAKE SYSTEM COMPONENT

An intake system component includes a side wall and a holding sheet arranged on an inner surface of the side wall. The side wall is formed by a fibrous body including base material fibers and binder fibers that bond together the base material fibers. The binder fibers have a lower melting point than the base material fibers. The holding sheet is formed in the same manner as the side wall by a fibrous body including the base material fibers and the binder fibers that bond together the base material fibers. The binder fibers have a lower melting point than the base material fibers. The holding sheet includes a holding portion and a joined portion. The holding portion holds an adsorbent that adsorbs a fuel component. The joined portion is located around the holding portion and joined with the inner surface of the side wall by the binder fibers. 1. An intake system component comprising:a side wall that forms an intake passage, wherein the side wall is formed by a fibrous body including base material fibers and binder fibers that bond together the base material fibers, and the binder fibers have a lower melting point than the base material fibers; anda holding sheet arranged on an inner surface of the side wall, wherein the holding sheet is formed in the same manner as the side wall by a fibrous body including the base material fibers and the binder fibers that bond together the base material fibers, and the binder fibers have a lower melting point than the base material fibers, wherein a holding portion that holds an adsorbent that adsorbs a fuel component, and', 'a joined portion located around the holding portion and joined with the inner surface of the side wall by the binder fibers., 'the holding sheet includes'}2. The intake system component according to claim 1 , whereinthe side wall is one of a plurality of side walls,the side walls are arranged in a radial direction of the intake passage and joined with each other by the binder fibers, andthe holding sheet is ...

VARIABLE AIR INTAKE APPARATUS REDUCING NOISE

A variable air intake apparatus in accordance with the present invention includes an valve configured to open a through hole formed at a duct body when an engine is driven at a high output to change a path of air introduced into the engine depending on an engine RPM, in which a magnet is mounted on any one of the valve and the duct body and a steel member is mounted on the other one thereof to maintain a state in which the valve closes the through hole, and a buffering member is mounted on any one of the valve and the duct body to prevent generation of hitting sound that is generated when the valve hits the duct body. 1. A noise-reducing variable air intake apparatus , comprising:a duct body having a through hole;a valve having a valve body disposed in the duct body;a magnet mounted on one of the duct body and the valve body;a steel member disposed on the other one of the duct body and the valve body; anda buffering member mounted on one of the valve body and duct body;wherein, when a vehicle is drive at high revolutions per minute, the valve closes so that the valve body blocks the through hole in the duct body, and wherein, when the valve closes, the buffering member prevents generation of sound when the valve body hits the duct body.2. The noise-reducing variable air intake apparatus of claim 1 , wherein the magnet and the buffering member are spaced apart from each other.3. The noise-reducing variable air intake apparatus of claim 1 , wherein the valve body comprises an upper section that closes the through hole in the duct body claim 1 , and wherein the upper section of the valve body is coupled to the duct body allowing the valve to rotate inside the duct body.4. The noise-reducing variable air intake apparatus of claim 3 , wherein the valve body further comprises an inclined section extending from an end of the upper section of the valve body claim 3 , and wherein the duct body further comprises an inclined surface claim 3 , such that when the valve closes ...

INTAKE SYSTEM COMPONENT

An intake system component arranged in an engine compartment of a vehicle includes a side wall that forms an intake passage. The side wall includes a non-breathable layer, an inner noise absorption layer, and an outer noise absorption layer. The non-breathable layer is formed from a non-breathable material. The inner noise absorption layer is located at an inner side of the non-breathable layer and formed from a breathable material. The outer noise absorption layer is located at an outer side of the non-breathable layer and formed from a breathable material. 1. An intake system component arranged in an engine compartment of a vehicle , the intake system component comprising: a non-breathable layer formed from a non-breathable material,', 'an inner noise absorption layer located at an inner side of the non-breathable layer and formed from a breathable material, and', 'an outer noise absorption layer located at an outer side of the non-breathable layer and formed from a breathable material., 'a side wall that forms an intake passage, wherein the side wall includes'}2. The intake system component according to claim 1 , wherein the non-breathable layer includes a non-breathable film having a thickness of 0.01 to 3 mm and a weight of 5 to 300 g/m.3. The intake system component according to claim 1 , wherein the inner noise absorption layer and the outer noise absorption layer each have a thickness of 5 to 50 mm and a weight of 50 to 1000 g/m.4. The intake system component according to claim 1 , whereinthe side wall further includes an inner coating layer and an outer coating layer,the inner coating layer is located on an inner surface of the inner noise absorption layer and formed from a breathable material having a lower breathability than the inner noise absorption layer, andthe outer coating layer is located on an outer surface of the outer noise absorption layer and formed from a breathable material having a lower breathability than the outer noise absorption layer.5 ...

NOISE BAFFLE FOR A ROTARY MACHINE AND METHOD OF MAKING SAME

A baffle for an air intake section of a rotary machine includes a pair of oppositely disposed perforated walls that at least partially define an exterior of the baffle and an interior cavity of the baffle. The baffle also includes a pair of panels disposed within the interior cavity. Each of the panels is coupled proximate a respective one of the perforated walls, such that a chamber is defined between the panels. Each of the panels includes a first sound absorbing material that is substantially completely vaporizable at an operating temperature of the rotary machine. 1. A baffle for an air intake section of a rotary machine , said baffle comprising:a pair of oppositely disposed perforated walls that at least partially define an exterior of said baffle and an interior cavity of said baffle; anda pair of panels disposed within said interior cavity, each of said panels coupled proximate a respective one of said perforated walls such that a chamber is defined between said panels, each of said panels comprising a first sound absorbing material that is substantially completely vaporizable at an operating temperature of the rotary machine.2. The baffle of claim 1 , further comprising a second sound absorbing material disposed within said chamber claim 1 , said second sound absorbing material is not substantially completely vaporizable at the operating temperature of the rotary machine.3. The baffle of claim 2 , wherein said second sound absorbing material has an increased sound-absorbing efficiency as compared to said first sound absorbing material.4. The baffle of claim 2 , wherein said second sound absorbing material comprises at least one of a mineral wool and a fiberglass material.5. The baffle of claim 1 , wherein said first sound absorbing material comprises at least one of a polyurethane foam claim 1 , a melamine foam claim 1 , and a polyethylene fiber.6. The baffle of claim 1 , wherein said first sound absorbing material comprises a reticulated foam.7. The baffle ...

AIR PIPE FOR AN INTAKE TRACT OF AN INTERNAL COMBUSTION ENGINE

An air pipe for an intake tract of an internal combustion engine may include at least one air channel for guiding a through-flow of air to at least one compressor arranged downstream thereof. An air guiding device may be arranged to influence a forward flow of air running in a direction towards the at least one compressor and facilitate reducing turbulences of the air flow. 1. An air pipe for an intake tract of an internal combustion engine , comprising:at least one channel for guiding a through-flow of air to at least one compressor for compressing air arranged downstream thereof; andan air guiding device arranged to influence a forward flow of air running in a direction towards the at least one compressor and facilitate reducing turbulences of the forward flow of air.2. The air pipe according to claim 1 , wherein the air guiding device includes a plurality of guiding fins projecting inwards from a wall at least partially defining the at least one channel claim 1 , the plurality of guiding fins arranged spaced apart from one another along the wall in a circumferential direction of the at least one channel.3. The air pipe according to claim 2 , wherein the plurality of guiding fins has at most nine guiding fins.4. The air pipe according to claim 2 , wherein at least two of the plurality of guiding fins are spaced apart from one another by 40 degrees in the circumferential direction.5. The air pipe according to claim 2 , wherein at least one of the plurality of guiding fins is spaced apart from a central axis defined in a narrowest inner radius of the at least one channel by 110 degrees or less.6. The air pipe according to claim 2 , wherein the plurality of guiding fins have a respective width running in the circumferential direction and a respective height running in a radial direction of the at least one channel claim 2 , wherein a ratio of the respective width to the respective height of the plurality of guiding fins is 0.25.7. The air pipe according to claim 2 , ...

SILENCER AND METHOD FOR MANUFACTURING THE SAME

The invention relates to a silencer () and a method for manufacturing a silencer (), in particular a vehicle silencer, having an inner pipe section () and at least one resonator chamber () embodied outside the pipe section (), with the shell () of the pipe section () having at least one opening () that connects the interior of the pipe section () with the resonator chamber (). For simplifying the production process as well as for material and weight savings, the shell segments () are prefabricated as individual components and the shell of the inner pipe section () is formed by assembling the prefabricated shell segments (), with the shell segments () being arranged to be spread along the circumference of the pipe and extend in axial direction from a first connecting piece () to a second connecting piece () each, and first ends () of the shell segments () are connected with the first connecting piece () and second ends () of the shell segments (), lying opposite the first ends (), being connected with the second connecting piece (). 112141523278214153456111294561110456912. Silencer () , in particular a vehicle silencer , having an inner pipe section () and at least one resonator chamber ( , ) embodied outside the pipe section () , with the shell () of the pipe section () having at least one opening ( , ) that connects the interior of the pipe section () with the resonator chamber ( , ) , wherein the shell () of the inner pipe section is composed of at least three shell segments ( , , ) arranged to be adjacent along the circumference of the pipe , which shell segments extend from a first connecting piece () to a second connecting piece () each , with first ends () of the shell segments ( , , ) being connected with the first connecting piece () and second ends () of the shell segments ( , , ) , arranged opposite the first ends () , being connected with the second connecting piece ().232456. Silencer according to claim 1 , wherein the shell () of the inner pipe section ...

LOW NOISE ENCLOSURE

Systems and apparatuses include an apparatus including an intake defined by an intake aperture, an intake baffle, and an intake floor structured to couple to an intake portion of an enclosure roof, the intake extending along at least eighty percent (80%) of a width of the apparatus on a first side, an exhaust defined by an exhaust aperture, an exhaust baffle, and an exhaust floor structured to couple to an exhaust portion of the enclosure roof, the exhaust extending along at least eighty percent (80%) of the width of the apparatus on a second side opposite the first side, a partition panel isolating the intake from the exhaust, and an engagement mechanism structured to couple the apparatus to a generator set. 1. An apparatus , comprising:an intake defined by an intake aperture, an intake baffle, and an intake floor structured to couple to an intake portion of an enclosure roof, the intake extending along at least eighty percent (80%) of a length of the apparatus on a first side;an exhaust defined by an exhaust aperture, an exhaust baffle, and an exhaust floor structured to couple to an exhaust portion of the enclosure roof, the exhaust extending along at least eighty percent (80%) of the length of the apparatus on a second side opposite the first side;a partition panel isolating the intake from the exhaust; andan engagement mechanism structured to couple the apparatus to a generator set.2. The apparatus of claim 1 , wherein the apparatus is a separate component from the enclosure roof.3. The apparatus of claim 1 , wherein an intake flow path travels in a first intake direction around the intake baffle and a second intake direction around the intake baffle opposite the first intake direction claim 1 , andwherein an exhaust flow path travels in a first exhaust direction around the exhaust baffle and a second exhaust direction around the exhaust baffle opposite the first exhaust direction.4. The apparatus of claim 1 , wherein the intake aperture is defined in the first ...

INLET DUCT FOR INTERNAL COMBUSTION ENGINE

An inlet duct for an internal combustion engine includes a tubular body portion having an air-permeable side wall and a tubular suction portion that is arranged on an upstream side of the body portion in an intake airflow direction and has an inner peripheral surface that expands radially outward toward the upstream side. The body portion and the suction portion are formed integrally by a compression-molded fiber molding. 1. An inlet duct for an internal combustion engine , comprising:a tubular body portion having an air-permeable side wall; anda tubular suction portion that is arranged on an upstream side of the body portion in an intake airflow direction and has an inner peripheral surface that expands radially outward toward the upstream side,wherein the body portion and the suction portion are formed integrally by a compression-molded fiber molding.2. The inlet duct according to claim 1 , wherein the suction portion has a side wall that is entirely air-impermeable.3. The inlet duct according to claim 1 , wherein the suction portion has a funnel-like shape.4. The inlet duct according to claim 1 , comprising a coupling portion that is arranged on a downstream side of the body portion in the intake airflow direction claim 1 ,wherein the body portion, the suction portion, and the coupling portion are formed integrally by the fiber molding.5. The inlet duct according to claim 1 , whereinthe side wall of the body portion has a high-compression portion and a low-compression portion, which is compression-molded at a lower compression ratio than the high-compression portion,the high-compression portion and the low-compression portion are connected to each other with a step in between on an outer peripheral surface of the side wall of the body portion, andthe high-compression portion and the low-compression portion are connected to each other to be flush with each other on an inner peripheral surface of the side wall of the body portion.6. The inlet duct according to ...

Device for attenuating intake noise and radiated noise

The invention concerns a device ( 1 ) for attenuating intake noise and radiated noise that comprises an internal gas delivery conduit ( 2 ) linked to a combustion engine, the conduit ( 2 ) having a peripheral wall ( 23 ) on at least one portion of which there is disposed at least one element porous to air ( 4 ), sound attenuation means comprising at least one tube ( 3 ) disposed in the delivery conduit, at least one peripheral chamber ( 5 ) being delimited inside the conduit ( 2 ) between the tube ( 3 ) and the peripheral wall ( 23 ) of the conduit ( 2 ), the tube ( 3 ) comprising at least one portion having an opening ( 30 ) allowing the inside of the tube ( 3 ) to communicate with the peripheral chamber ( 5 ).

NOISE ATTENUATION UNIT FOR ENGINE SYSTEMS

Noise attenuation units are disclosed that are connectable in a system as part of a fluid flow path. Such units include a housing defining an internal cavity and having a first port and a second port each connectable to a fluid flow path and in fluid communication with one another through the internal cavity, and a noise attenuating member seated in the internal cavity of the housing within the flow of the fluid communication between the first port and the second port. The noise attenuating member enables the fluid communication between the first port and the second port to flow through the noise attenuating member. 1. A noise attenuation unit connectable to a fluid flow path of an engine comprising:a housing consisting essentially of a first housing portion defining a first port and a second housing portion defining a second port, the first housing portion and the second housing portion are mated together with a fluid-tight seal to define an internal cavity in fluid communication with the first port and the second port; anda porous noise attenuating material dimensioned for a tight fit within the internal cavity and seated therein;wherein fluid flow from the first port to the second port through the internal cavity is only through the porous noise attenuating material.2. The noise attenuation unit of claim 1 , wherein the first port and the second port are aligned opposite one another and the porous noise attenuating material is sandwiched between a first seat of the first housing portion and a second seat of the second housing portion.3. The noise attenuation unit of claim 2 , wherein one or more of the first port and the second port include an elbow.4. The noise attenuation unit of claim 1 , wherein one of the first housing portion and the second housing portion defines a container for the noise attenuating member and the other thereof defines a cap for the container.5. The noise attenuation unit of claim 1 , further comprising a sealing member seated between the ...

SOUND ATTENUATOR OF AN EXHAUST-GAS TURBOCHARGER

A sound attenuator on the intake side of a compressor of an exhaust-gas turbocharger includes a tubular sound attenuator housing, which encases a flow duct between a face-side inlet opening and a rear-side outlet opening. A holding plate is provided in the sound attenuator housing in the flow direction and is perforated in the flow direction. For example, the holding plate can have a multiplicity of holes extending in the flow direction. The sound attenuator on the intake side of the compressor of an exhaust-gas turbocharger has a compact, lightweight and inexpensive structural form. The intake air is subjected to low resistance as it flows through the attenuation elements.

DEVICE FOR TRANSMITTING SOUND

A device for transmitting sound has a transmission element shaped to form a sound symposer and forms a sound cone between a rear wall and a front-side panel, Thus, sound is projected from the latter through openings in the panel into the vehicle interior. 1. A device for transmitting sound from a motor vehicle internal combustion engine arranged in an internal combustion engine compartment in a rear of a motor vehicle to an interior of the motor vehicle , comprising: a sound transmission element shaped on an inlet side to form a sound symposer and on the outlet side , conducts sound projections to the vehicle interior , the transmission element having of a closed rear wall , a front-side panel provided with a multiplicity of sound passage openings , and a sound cone formed between the rear wall and the panel.2. The device of claim 1 , wherein the rear wall is spaced apart from the panel claim 1 , and at least one lower sound inlet opening is provided between the panel and the rear wall claim 1 , sound outlet openings being provided over an entire surface in the panel.3. The device of claim 1 , wherein the transmission element is held inserted in a cutout in a carpet covering and is fixable in the cutout by hooks and fixing elements.4. The device of claim 3 , wherein the front panel overlaps the rear wall peripherally with a protruding edge claim 3 , the protruding edge completely covering the cutout in the carpet covering.5. The device of claim 3 , wherein the fixing elements are parallel and next to one another and protrude away from the rear wall claim 3 , the fixing elements having fixing points in an upper region of the rear wall of the transmission element.6. The device of claim 5 , further comprising at least two downwardly extending claim 5 , free-standing hook elements arranged in a lower region of the rear wall of the transmission element.7. The device of claim 1 , wherein the sound from the internal combustion engine can be supplied via the sound symposer ...

ACOUSTIC ATTENUATOR FOR AN ENGINE BOOSTER

An acoustic attenuator for an engine booster such as a turbocharger for an engine is disclosed in which the acoustic attenuator includes an attenuator chamber in which is located at least one absorption media . The acoustic attenuator is located adjacent an inlet port of the turbocharger so as to attenuate any acoustic pressure waves by dissipative reaction with the absorption media before they have chance to reach other components of a low pressure supply system for the engine 1. An acoustic attenuator for an engine booster of a vehicle , comprising:an attenuator body defining an air flow passage through which low pressure air flows to an air compressor of the booster and;an attenuator chamber containing acoustic pressure wave absorbing material operatively connected to the air flow passage via a number of transfer ports wherein the acoustic attenuator is located close to an inlet port of the air compressor.2. The acoustic attenuator as claimed in claim 1 , wherein one end of the attenuator body is adapted for connection to an inlet port of the air compressor.3. The acoustic attenuator as claimed in claim 1 , wherein the attenuator chamber extends around only a portion of the attenuator body.4. The acoustic attenuator as claimed in claim 3 , wherein the portion is an upper portion claim 3 , in a vertical direction relative to a surface on which a wheel of the vehicle rests.5. The acoustic attenuator as claimed in claim 1 , wherein each of the transfer ports is formed by an elongate aperture aligned with a general flow path of air through the air flow passage.6. The acoustic attenuator as claimed in claim 1 , wherein the acoustic pressure wave absorbing material is one of a fibrous mat claim 1 , foam claim 1 , and a combination of foam and a fibrous mat.7. The acoustic attenuator as claimed in claim 6 , wherein the attenuator chamber houses at least two acoustic pressure wave absorbing materials having differing frequency absorbing properties.8. The acoustic ...

SOUND ATTENUATION DEVICE AND METHOD

An attenuation device for attenuating sound waves, and a corresponding system and method, generated by a source emitting sound waves having frequencies between f1 and f2 and wherein the pressure levels are between n1 and n2. The attenuation device comprising at least one acoustic absorber comprising at least one non-linear membrane; the attenuation device being configured in such a way that the first face of the absorber is in acoustic communication with the source. The attenuation device also comprises at least one coupling element for coupling the second face with the source, the coupling element being configured to transmit to the second face sound waves according to the sound waves emitted by the source, and of which the phase and/or the amplitude leads to a pressure differential of the sound waves arriving respectively on the first and second face at the same time. 1. An attenuation device intended for attenuating sound waves generated by a source emitting sound waves of which the frequencies are between f1 and f2 and of which the pressure levels are between n1 and n2 ,{'sub': 0', '0', '0', '0', '0', '0, 'the attenuation device comprising at least one acoustic absorber comprising at least one membrane, with the acoustic absorber having at least one first face and at least one second face separate from the first face, with the acoustic absorber being configured to have a behavior in non-linear deformation when it receives sound waves of which the frequencies are between f1 and f2, with the range f1−f2 covering at least 50% of the range f1−f2 and of which the pressure levels are between n01 and n02, with the range n1−n2 covering at least 50% of the range n1−n2;'}with the attenuation device being configured in such a way that the first face of the absorber is in acoustic communication with the source;with the attenuation device being comprising at least one coupling element for coupling the second face with the source, the coupling element being configured to ...

AIR CLEANER

In an air cleaner, an air cleaner case having an upper opening which opens upward is formed. The air cleaner case is formed of a front wall, a rear fender, and right and left side covers. The upper opening is closed by a seat. A sound absorbing member is bonded to a bottom plate of the seat and housed in an air cleaner space. The intake noise in the air cleaner is absorbed by the sound absorbing member. 1. An air cleaner comprising:an air cleaner case provided beneath a seat for a saddled vehicle, the air cleaner case having an upper opening which opens upward, the upper opening configured to be closed by a bottom plate of the seat; anda sound absorbing member bonded to the bottom plate of the seat, the sound absorbing member disposed in the air cleaner.2. The air cleaner according to claim 1 , whereinthe air cleaner case includes an engaging part configured to engage with the seat, the engaging part disposed at upper surface of a front wall of the air cleaner case, andthe sound absorbing member is formed integrally with a front seal interposed between an upper surface of the engaging part and the bottom plate of the seat.3. The air cleaner according to claim 1 , whereinthe air cleaner case has its front part formed of the front wall,the air cleaner case has its rear part and bottom part formed of a rear fender, andthe air cleaner case has its right and left parts respectively formed of side covers.4. The air cleaner according to claim 1 , whereinthe air cleaner case has its side walls respectively formed of side covers each including an upper end, andbetween each of the upper ends and the bottom plate of the seat, a side seal is interposed.5. The air cleaner according to claim 4 , whereinthe side seal and the sound absorbing member are formed independently of each other, anda thickness in a top-bottom direction of the side seal is greater than a thickness in the top-bottom direction of the sound absorbing member.6. The air cleaner according to claim 1 , wherein a ...

AN ENGINE AIR FILTER UNIT FOR A VEHICLE

The invention relates to an engine air filter unit for a vehicle () that is designed to supply filtered air to an internal combustion engine of the vehicle (). The engine air filter unit () comprises a main filter (), a mounting base () to secure the engine air filter unit () on at least one body panel () of the vehicle, a pre-separator fluidically connected to the main filter. The main filter () is arranged on a side of the mounting base () and the pre-separator () is arranged on the opposite side of the mounting base (). The pre-separator housing is at least partly formed by the mounting base () and an air duct () extends through the mounting base () to fluidically connect the pre-separator to the filtration chamber. 2. The engine air filter unit according to wherein the pre-separator housing is partly formed by the mounting base and by side walls that extend from the mounting base in a direction opposite to the main filter.3. The engine air filter unit according to wherein the side walk extend perpendicularly from at least one outer surface of the mounting base claim 2 , wherein the outer surface is on a side of the mounting base that is opposite to the side where is arranged the main filter.4. The engine air filter unit according to wherein the outer surface of the mounting base is a flat surface claim 3 , a curve surface claim 3 , several flat surfaces inclined relative to each other or a succession of flat and curve surfaces.5. The engine air filter unit according to wherein the mounting base is formed by at least one mounting plate.6. The engine air filter unit according to wherein the filter housing is made of at least one plastic part or is made of at least one light metallic alloy part and the mounting base is formed as a single piece with the plastic part or light metallic alloy part.7. The engine air filter unit according to wherein the pre-separator housing is closed claim 3 , irrespective of its air inlet and its air outlet claim 3 , by at least one ...

BYPASS CHECK VALVE AND VENTURI HAVING SAME

Check valves are disclosed and include a housing defining an internal cavity having a first seat and a second seat, and a seal member within the internal cavity translatable between a closed position against the first seat and an open position against the second seat. The second seat has a middle axis transverse to a plane of a longitudinal cross-section of the housing and has a shortest finger positioned to either the left or to the right of the middle axis. The seal member is seatable against the second seat at an angle or in a deflected position against the plurality of fingers, thereby defining a longer distance of travel to reach the closed position for a portion of the check valve disc that is associated with the position of the shortest finger relative to other portions of the check valve disc. 1. A Venturi device comprising:a housing defining a passageway having a central longitudinal axis, wherein the passageway comprises a first tapering portion coupled to a second tapering portion at a fluid junction in fluid communication with a suction port, defining a bypass port in fluid communication with the passageway located downstream of the second tapering portion, and defining a bypass check valve controlling fluid flow through the bypass port; an internal cavity having a first seat defining a closed position and a second seat comprising a plurality of fingers defining an open position that are circumferentially spaced apart about the bypass port and project into the internal chamber;', 'a check valve disc within the internal cavity that translates between a flat sealing state in the closed position, and an angled state or a deflected state against the plurality of fingers in the open position;', 'wherein the plurality of fingers has a shortest finger in a position that defines a longer distance of travel to the closed position for a first portion of the check valve disc in need thereof and has longer fingers in a position that define a shorter distance of ...

AIR INTAKE DEVICE OF ENGINE WITH SUPERCHARGER

An air intake device includes a bypass passage which makes a portion of an air intake passage on an upstream side of a compressor and a portion of the air intake passage on a downstream side of the compressor communicate with each other, and a bypass passage open/close valve which opens or closes the bypass passage. The air intake passage includes a first passage extending toward an upstream side from the compressor along a first direction, a bent portion bent from an upstream end of the first passage in a second direction, and a second passage extending from an upstream end of the bent portion along the second direction. The second passage has a vertically elongated cross-sectional shape. A vibration suppressing part for suppressing vibrations of the second passage is disposed in at least one of the second passage and the bent portion. 1. An air intake device of an engine with a supercharger , comprising:an engine body;an air intake passage which introduces intake air into the engine body; anda turbo supercharger which includes a compressor disposed in the air intake passage and supercharges the intake air,the air intake device further comprising:a bypass passage which makes a portion of the air intake passage on an upstream side of the compressor and a portion of the air intake passage on a downstream side of the compressor communicate with each other thus bypassing the compressor; anda bypass passage open/close valve which opens or closes the bypass passage, whereinthe air intake passage has an upstream-side pipe positioned upstream of the compressor,the upstream-side pipe includes a first passage extending toward an upstream side from the compressor along a first direction, a bent portion bent from an upstream end of the first passage in a second direction, which differs from the first direction, and a second passage extending from an upstream end of the bent portion along the second direction,the bypass passage is connected to a connecting portion mounted in ...

AIR CLEANER FOR INTERNAL COMBUSTION ENGINE

An air cleaner for an internal combustion engine includes a first housing having an inlet and an upper opening, a second housing having an outlet and a lower opening, a filter element arranged between the upper opening of the first housing and the lower opening of the second housing. The first housing includes a sound reducing wall portion. The sound reducing wall portion has a sound absorbing layer, which is made of nonwoven fabric, and an inner covering layer, which is fixed to the inner surface of the sound absorbing layer and made of a material having a lower air permeability than that of the sound absorbing layer. 1. An air cleaner for an internal combustion engine , comprising:a first housing including an inlet and an opening;a second housing including an outlet and an opening; anda filter element arranged between the opening of the first housing and the opening of the second housing, whereinat least one of the first housing and the second housing includes a sound reducing wall portion, and a sound absorbing layer made of an air permeable material, and', 'an inner covering layer, which is fixed to an inner surface of the sound absorbing layer and made of a material having a lower air permeability than that of the sound absorbing layer., 'the sound reducing wall portion includes'}2. The air cleaner for an internal combustion engine according to claim 1 , wherein an air permeability of the inner covering layer is 3 cm/cm·s to 50 cm/cm·s.3. The air cleaner for an internal combustion engine according to claim 1 , wherein the air permeable material is a nonwoven fabric.4. The air cleaner for an internal combustion engine according to claim 1 , whereinof the first housing and the second housing, the housing including the sound reducing wall portion includes a molded plastic portion, which constitutes at least one of the inlet, the outlet, and a flange that forms a periphery of the opening, andthe molded plastic portion is integrally formed with the sound reducing ...

Air cleaner of internal combustion engine

An air cleaner of an internal combustion engine is provided with a first housing including an inlet, a second housing including an outlet, and a filter element located between the first housing and the second housing. A Helmholtz resonator is arranged inside the first housing. An upright wall projects from a bottom wall of the first housing toward the filter element and extends in an axial direction of the inlet. The upright wall forms a chamber of the Helmholtz resonator. A noise-absorption region is defined by the upright wall, a side wall of the first housing, the bottom wall, and the filter element. The noise-absorption region leads to the inlet and extends in the axial direction.

A bypass check valve and venturi devices having the same

Bypass check valves, suitable for bypassing a Venturi gap, are disclosed and include a housing defining an internal cavity having a first seat and a second seat, and a seal member within the internal cavity translatable between a closed position against the first seat and an open position against the second seat. The second seat defines a support structure having a middle region of a predetermine height and a downstream side having a height that is shorter than the predetermined height of the middle region. The seal member is seatable against the second seat with a downstream portion thereof a further distance from the first seat than an upstream portion thereof.

Noise attenuation in a check valve unit or apparatus for producing vacuum

Check valve units having one or more sound attenuating members are disclosed. A check valve unit includes a housing defining an inlet port, an outlet port, and a chamber in fluid communication therewith thereby defining a flow path from the inlet port through the chamber to the outlet port. The chamber includes first and second valve seats and has a sealing member disposed therein that is moveable from a position seated on the first valve seat to a position seated on the second valve seat. A sound attenuating member is disposed in the flow path downstream of the chamber, within the chamber, or both. In another embodiment, the check valve unit includes a Venturi portion in fluid communication with the chamber. The Venturi portion has a fluid junction with the flow path downstream of the chamber or forms the discharge section of the Venturi portion thereby defining the outlet port.

Bypass check valve and Venturi having same

Check valves are disclosed and include a housing defining an internal cavity having a first seat and a second seat, and a seal member within the internal cavity translatable between a closed position against the first seat and an open position against the second seat. The second seat has a middle axis transverse to a plane of a longitudinal cross-section of the housing and has a shortest finger positioned to either the left or to the right of the middle axis. The seal member is seatable against the second seat at an angle or in a deflected position against the plurality of fingers, thereby defining a longer distance of travel to reach the closed position for a portion of the check valve disc that is associated with the position of the shortest finger relative to other portions of the check valve disc.

旁通止回阀以及具有该旁通止回阀的文丘里装置

本申请公开了适合于绕过文丘里间隙的旁通止回阀，其包括：壳体，其限定了内空腔，所述内空腔具有第一座和第二座；以及密封部件，其位于所述内空腔内，能够在抵靠所述第一座的闭合位置与抵靠第二座的打开位置之间平移。第二座限定了具有预定高度的中间区域的支撑结构以及具有其高度比中间区域的预定高度小的下游侧。密封部件能够抵靠座安置，其下游部分比其上游部分更远离第一座。

旁通止回阀以及具有该旁通止回阀的文丘里装置

本申请公开了适合于绕过文丘里间隙的旁通止回阀，其包括：壳体，其限定了内空腔，所述内空腔具有第一座和第二座；以及密封部件，其位于所述内空腔内，能够在抵靠所述第一座的闭合位置与抵靠第二座的打开位置之间平移。第二座限定了具有预定高度的中间区域的支撑结构以及具有其高度比中间区域的预定高度小的下游侧。密封部件能够抵靠座安置，其下游部分比其上游部分更远离第一座。

Bypass check valve and venturi devices having the same

Bypass check valves, suitable for bypassing a Venturi gap, are disclosed and include a housing defining an internal cavity having a first seat and a second seat, and a seal member within the internal cavity translatable between a closed position against the first seat and an open position against the second seat. The second seat defines a support structure having a middle region of a predetermine height and a downstream side having a height that is shorter than the predetermined height of the middle region. The seal member is seatable against the second seat with a downstream portion thereof a further distance from the first seat than an upstream portion thereof.

Bypass check valve and the Venturi with the bypass check valve

This application discloses the bypass check valve being suitable for around venturi gap, it includes：Housing, which defines internal cavity, the internal cavity has First and second；And seal member, it is located in the internal cavity, can be translated between the closing position against the First and the open position against second.Second supporting structure for defining the intermediate region with predetermined altitude and with its height downstream smaller than the predetermined altitude of intermediate region.Seal member can leaning seat placement, downstream part than its upstream portion further from First.

Turbocharger

본 발명은, 터빈 하우징(2); 압축기 출구(20)를 구비한 압축기 하우징(3); 및 압축기 출구(20)의 단부 영역(22)에 배치되며, 적어도 하나의 개구(26)를 통해 공기 안내 덕트(27)에 연결된 적어도 하나의 버퍼 챔버(24)를 형성하도록 삽입부(25)가 배치된 소음기 하우징(23)을 구비하는 소음기(21)를 포함하는 터보차저(1)에 관한 것으로, 개구(26)는, 날카로운 에지를 가지지 않도록 고안된 반경방향 내측 모서리(29)를 가진 에지(28)를 가진다.

Metallic coating on a component of an internal combustion engine

The present invention relates to a component for an internal combustion engine of an automobile having reduced NVH properties. The component has a shell formed with a plastic composite material. The shell defines an inlet port, an outlet port, an outer surface and an inner surface. The inner surface defines an inner cavity to allow air passage to the internal combustion engine. A damping layer is disposed on the outer surface such that damping layer substantially dampens the noise emitted from the component.

Noise attentuation unit for engine system

本文公开了一种噪声衰减单元，该噪声衰减单元可连接于系统中作为流体流动通路的一部分。这样的单元包括：壳体，该壳体限定了内部空腔，并有第一口和第二口，该第一口和第二口各自可与流体流动通路连接，且通过内部空腔而相互流体连通；以及噪声衰减部件，该噪声衰减部件设置在壳体的内部空腔中，并在第一口和第二口之间流体连通的流动通路内。噪声衰减部件使得在第一口和第二口之间的流体连通能够流过该噪声衰减部件。

Air cleaner having resonator

An air cleaner integrated with a resonator, according to an embodiment of the present invention, comprises: an air cleaner body; a cleaning part which is arranged in one end of the body and allows a filter member to be detachably coupled thereto; a resonating part which is arranged in the rear end of the cleaning part and allows the air cleaned through the filter member to pass therethrough in order to reduce intake noise through resonance; a diaphragm part which is arranged between the cleaning part and the resonating part and separates the cleaning part from the resonating part; and one or more through holes which are arranged in the diaphragm part and transfer the air cleaned through the filter member to be transferred to the resonating part.

Intercooler pipe

The present invention relates to an intercooler pipe, in particular, an intercooler pipe (100) for connecting an intercooler and an engine throttle body. The bellows 110 is formed at both ends of the intercooler pipe 100. The bellows 110 is made of a polyester material such as polyethylene terephthalate (PBT) material having a modulus of elasticity higher than that of the outside, so that a bellows having different internal and external materials is formed on the intercooler pipe, and the modulus of elasticity of the intercooler pipe is higher than that of the intercooler pipe, Thereby enhancing the NVH performance, thereby enhancing the merchantability of the vehicle and enhancing the durability of the bellows formed in the intercooler pipe to improve the safety.

Air filter for internal combustion engine

用于内燃机的空气滤清器包括壳体和位于壳体内的过滤器元件。壳体包括壳体主体和纤维成形组件。壳体主体由塑料成形体形成。壳体主体具有在空气流动方向上位于过滤器元件的上游的壁和作为壁的向内凹陷部分的凹部。纤维成形组件固定到壁、从外侧覆盖凹部并与凹部一起形成入口通道的侧壁的一部分。凹部形成有用于使入口通道与壳体主体的内部之间连通的连通孔。

Engine system and method for engine (options)

FIELD: internal combustion engines. SUBSTANCE: invention can be used in internal combustion engines. Engine (12) system (10) comprises aspirator (80) with a suction outlet in aspirator (80) neck, a suction outlet in the expanding conical nozzle of the aspirator, and a suction outlet in a straight tube downstream of the expanding conical tube. Aspirator inlet (80) is connected to the atmosphere, and the outlet of mixed aspirator (80) flow is connected to a vacuum source. Suction outlet in the throat and the suction outlet in the straight tube are connected to the vacuum tank (38) through parallel suction channels, which are connected to a single channel downstream of the vacuum source. Suction outlet in the expanding conical branch pipe is connected to fuel vapor reservoir (63). Shut-off valve is located in each channel. Invention discloses versions of described method for engine. EFFECT: technical result consists in increased vacuum, intensity of the suction flow. 19 cl, 13 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 659 634 C2 (51) МПК F01M 13/02 (2006.01) F02M 25/08 (2006.01) F02M 35/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B60K 25/04 (2018.02); B60T 17/02 (2018.02); F01M 13/02 (2018.02); F01M 13/04 (2018.02); F02M 25/08 (2018.02); F02M 35/10 (2018.02); F02M 35/10229 (2018.02); F02M 35/1272 (2018.02); F04F 5/14 (2018.02); F04F 5/52 (2018.02) (21)(22) Заявка: 2014142879, 23.10.2014 23.10.2014 03.07.2018 Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: US 6227177 B1, 08.05.2001. US 2006/ 24.10.2013 US 14/062,323 (43) Дата публикации заявки: 20.05.2016 Бюл. № 14 0016477 A1, 26.01.2006. JP 63055357 A, 09.03.1988. RU 2157910 C2, 20.10.2000. US 2011/ 132311 A1, 09.06.2011. 2 6 5 9 6 3 4 R U Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СИСТЕМА ДВИГАТЕЛЯ И СПОСОБ ДЛЯ ДВИГАТЕЛЯ ...

Vehicle apparatus resonator

A resonator for a vehicle is provided to effectively reduce noise by improving the coverable frequency range, thereby improving riding comfort of a passenger. A resonator for a vehicle includes an air duct(10), a noise damping part(20), and a fixing part(30). The air duct is provided in an engine room for the vehicle. The air duct includes a mounting recess(12a) extended from an inlet on the inner side of a lower duct cover along a neck portion, and engaging holes(12b,12b') formed in the inlet and the neck portion respectively. The noise damping part is rounded so as to be attached to the mounting recess of the lower duct cover and damps the noise of sucked air introduced through the air duct. Noise damping holes are formed in the noise damping part at predetermined intervals. The noise damping part has a length of about a half the total length of the air duct. The fixing part includes a first fixing part(32) and a second fixing part(34).

Decreasing apparatus of engine noise when air is inhaled

본 발명의 목적은 에어크리너로 공기를 도입하는 에어덕트에서 효과적으로 흡기소음을 감쇄시킬 수 있는 흡기소음 감쇄장치를 제공하는데 있다. 이를 위해 본 발명은 에어크리너에 공기를 도입안내하는 에어덕트에 있어서, 상기 에어덕트의 내면에는 흡음재가 적층되어 있으며, 또 복수개의 버퍼플레이트가 에어덕트의 중심방향을 향해 돌출되어 있는 것을 특징으로 한다. 흡음재, 버터플레이트, 에어덕트

Gas-entered passageway baffler and gas-entered passageway silene system

本实用新型提供了一种进气通道消音器，包括：布置在外壳内的一系列表面，外壳位于发动机的进气入口上的清洁侧风道的上游，所述一系列表面的每个表面均具有与清洁侧风道的内径一致的直径长度。还提供了另一种进气通道消音器和一种进气通道消音系统。该进气通道消音器和进气通道消音系统能够降低内燃发动机发出的可闻噪声的水平。

Air introduction assembly equipped with integrated mass air flow sensor and broadband silencer

【課題】空気流の乱れが少なく、かつ広帯域サイレンサーと一体化したマスエアフローセンサーを提供する。 【解決手段】一体型マスエアフローセンサー／広帯域サイレンサーを備えたアッセンブリは、複数の壁を有する成型ボディより成る。成型ボディは、アッセンブリの内部に複数の室を規定する複数の壁と一緒に吸音材層で周りが覆われている。マスエアフローセンサーは１つの室へ挿入される。室のサイズ及び配置間隔は、センサーに対して等速で乱れがあまりないように、そしてアッセンブリの下流に位置する内燃機関への気流抵抗が小さくなるように設定される。 【選択図】図１

SOUND TRANSMISSION DEVICE FOR A MOTOR VEHICLE

Noise attenuation in a check valve unit or apparatus for producing vacuum

본 발명에는 하나 이상의 소음 감쇄 부재들을 갖는 체크 밸브 유닛이 기재되어 있다. 상기 체크 밸브 유닛은 유입 포트, 유출 포트, 및 이들 사이에서 유체 소통하는 챔버를 형성하는 하우징을 포함하며, 이에 의해 유입 포트로부터 챔버를 통하여 유출 포트로의 흐름 경로를 획정한다. 상기 챔버는 제 1 밸브 시트 및 제 2 밸브 시트를 포함하고, 그 내부에는 실링 부재가 배치되는데, 상기 실링 부재는 제 1 밸브 시트 상에 안착된 위치로부터 제 2 밸브 시트 상에 안착되는 위치로 이동할 수 있다. 소음 감쇄 부재는 챔버의 하류, 또는 챔버 내부, 또는 이들 둘다의 흐름 경로에 배치된다. 다른 실시예에서, 체크 밸브 유닛은 챔버와 유체 소통을 하는 벤츄리부를 포함한다. 상기 벤츄리부는 챔버의 하류의 흐름 경로와 유체 접합을 하거나, 또는 벤츄리부의 방출 섹션을 형성하며, 이에 의해 유출 포트가 형성된다. The present invention describes a check valve unit having one or more noise attenuating elements. The check valve unit includes an inlet port, an outlet port, and a housing defining a chamber in fluid communication therebetween, thereby defining a flow path from the inlet port through the chamber to the outlet port. The chamber includes a first valve seat and a second valve seat, and a sealing member is disposed therein, and the sealing member moves from a position seated on the first valve seat to a position seated on the second valve seat. I can. The noise attenuating member is disposed downstream of the chamber, or within the chamber, or in the flow path of both. In another embodiment, the check valve unit includes a venturi in fluid communication with the chamber. The venturi portion is in fluid contact with the flow path downstream of the chamber, or forms a discharge section of the venturi portion, whereby an outlet port is formed.

Patent RU2014142879A3

ВУ’? 2014142879” АЗ Дата публикации: 02.04.2018 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж Я «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2014142879/06(069266) 23.10.2014 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 14/062,323 24.10.2013 05 Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СИСТЕМА ДВИГАТЕЛЯ И СПОСОБ ДЛЯ ДВИГАТЕЛЯ (ВАРИАНТЫ) Заявитель: ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи, 05 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) ЕО1М 13/02 (2006.01) Е02М 25/08 (2006.01) Е02М 35/10 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) в01М11/00-201М11/08, Е01М13/00-Е01М13/06, В02М25/00- #02М25/14, Е02М26/00- 802М26/74, Е02МЗ5/00-Е02МЗ5/116, Е02В47/00-Е02В47/10, Е02021/00-Е02021/10 802041/00-Е02041/22, Е02243/00-Е02043/04, Е02045/00, Е04Е5/00-Е04Р5/54, В6ОК25/00- В60К25/10, В6ОТ17/00-В60Т17/22 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, ...

Intake duct

本发明的目的是提供一种进气管，其具有防水功能且不增加零件数。用于使空气从外侧进入到内燃机(E)中的进气管(10)具有管状形式的树脂的管壁(11)。所述管壁(11)包括防水透湿部件(20)，该部件具有高密度纤维制成的斥水层(21)以及细孔膜制成的防水透湿层(22)，这两层彼此层叠。

Noise reduction device of ship engine

本发明涉及船舶技术领域，具体是一种船舶发动机的降噪装置，包括：壳体和进气管，所述进气管一端与发动机相连，另一端通至所述壳体内侧；防护罩，所述防护罩设于所述进气管外侧，与所述壳体固定连接，且所述壳体和防护罩内侧均固定连接设置有吸音棉；进气机构，所述进气机构设于所述壳体内侧，与所述进气管固定连接；降速机构，所述降速机构设于所述进气管内侧；其中，所述降速机构包括：遮挡组件；缓冲组件，通过设置壳体和防护罩，利用吸音棉对噪音进行吸收，并通过设置降速机构来降低空气在进入发动机时的速度，减少噪音的产生，从而实现对噪音的有效处理，保证船内的安静，方便人们进行休息。

Bypass check valve and venturi device having the same

本申请公开了一种旁通止回阀以及具有该旁通止回阀的文丘里装置。所述旁通止回阀，其包括：壳体，其限定了内空腔，所述内空腔具有第一座和第二座；以及密封部件，其位于所述内空腔内，能够在抵靠所述第一座的闭合位置与抵靠第二座的打开位置之间平移。第二座限定了具有预定高度的中间区域的支撑结构以及具有其高度比中间区域的预定高度小的下游侧。密封部件能够抵靠座安置，其下游部分比其上游部分更远离第一座。

Patent JPS51131513U

AIR SUCTION SYSTEM FITTED WITH A HYDROPHOBIC COVER FOR A VEHICLE ENGINE

A bypass check valve and venturi devices having the same

ABSORPTION SOUND ABSORBER, PARTICULARLY FOR ROTARY PISTON BLOWER

AMORTISSEUR DE BRUIT A ABSORPTION, EN PARTICULIER POUR SOUFFLANTE A PISTON ROTATIF, CONSTITUE PAR UN BOITIER DANS LEQUEL EST INSTALLE UN CANAL D'ECOULEMENT DELIMITE AU MOINS EN PARTIE PAR UN MATERIAU ABSORBANT. LE BOITIER 1 EST PARALLELEPIPEDIQUE ET LE CANAL D'ECOULEMENT PRESENTANT UNE SECTION TRANSVERSALE RECTANGULAIRE APLATIE EST DISPOSE EN MEANDRES OU ZIG-ZAG DANS LE SENS VERTICAL. ABSORBING NOISE DAMPER, IN PARTICULAR FOR A ROTARY PISTON BLOWER, CONSTITUTED BY A BOX IN WHICH IS INSTALLED A FLOW CHANNEL BOUNDATED AT LEAST PART BY AN ABSORBENT MATERIAL. HOUSING 1 IS PARALLELEPIPEDIC AND THE FLOW CHANNEL WITH A RECTANGULAR CROSS-SECTION APLATIA IS ARRANGED IN MEANDERS OR ZIG-ZAG IN THE VERTICAL SENSE.

Fresh air intake device for internal combustion engine of motor vehicle

FIELD: ventilation.SUBSTANCE: invention can be used in fresh air intake devices housed in motor vehicles for feeding air to internal combustion engines. Device contains inlet tank (1), having part (1a) in the form of a channel, and air intake (11). Air intake (11) contains inlet (16) for intake of fresh air. Inlet (16) is located on upper side (11b) of the intake (11) and is directed upwards when the device is installed in the vehicle. Tank (1) contains cover (5) located between air intake (11) and inlet tank (1). Air inlet (11) has the form of an open up box with inner crankcase (13), containing two side air holes. Inner crankcase (13) has ribs (15) on its outer surface. Vehicle with a fresh air intake device is disclosed.EFFECT: technical result consists in the intake of fresh air from a zone of colder air in a motor vehicle.8 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 682 048 C2 (51) МПК F02M 35/10 (2006.01) B60K 13/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B60K 13/02 (2018.08); F02M 35/10013 (2018.08); F02M 35/10045 (2018.08); F02M 35/10052 (2018.08) (21)(22) Заявка: 2016136535, 06.02.2015 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): РЕНО С.А.С. (FR) Дата регистрации: 15.03.2019 13.02.2014 FR 1451112 (43) Дата публикации заявки: 16.03.2018 Бюл. № 3641746 A, 15.02.1972. US 2003/0188902 A1, 09.10.2003. US 2010/0301638 A1, 02.12.2010. RU 2487020 C1, 10.07.2013. 8 (45) Опубликовано: 15.03.2019 Бюл. № 8 (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 13.09.2016 FR 2015/050286 (06.02.2015) (87) Публикация заявки PCT: 2 6 8 2 0 4 8 WO 2015/121569 (20.08.2015) R U 2 6 8 2 0 4 8 (56) Список документов, цитированных в отчете о поиске: US 5794733 A, 18.08.1998. US Приоритет(ы): (30) Конвенционный приоритет: R U 06.02.2015 (72) Автор(ы): МАРРЕЛЬ Себастьян (FR), ВАРГАС Марсело (BR) Адрес для переписки: 109012, Москва, ул. Ильинка ...

POROUS CONDUIT WITH THIN FILM

DIESEL POWER TRAINER ARCHITECTURE SURALIMENTE

The engine unit has a compact module (M) integrated with an air intake choke (130). An air inlet connector (140) connects an air inlet to an outlet of a supercharging air cooler. An acoustic attenuator (120) is connected to an outlet of a turbocompressor. The compact module is inserted in an upper zone of the engine unit. The acoustic attenuator is assembled directly on the air inlet connector without an intermediate piece. The air intake choke is assembled adjacent to the air inlet connector.

INTAKE DEVICE FOR ENGINE, AND CHAIN SAW

L'INVENTION CONCERNE LA REDUCTION DU BRUIT D'ADMISSION DES MOTEURS THERMIQUES. ELLE SE RAPPORTE A UN DISPOSITIF FORMANT UN PASSAGE D'AIR 83 ENTRE UN BOITIER 65 DE CARBURATEUR ET UN BOITIER 85 DE SILENCIEUX, UN FILTRE A AIR DIVISANT LE BOITIER DE SILENCIEUX. L'AIR ADMIS DOIT CIRCULER DANS LE SILENCIEUX, PAR LE PASSAGE 83 D'ADMISSION D'AIR ET DANS LE BOITIER 65 AVANT DE PARVENIR AU CARBURATEUR 71 SI BIEN QUE LE BRUIT TRANSMIS EN SENS INVERSE EST FORTEMENT AMORTI. APPLICATION AUX SCIES A CHAINE. THE INVENTION CONCERNS THE REDUCTION OF THE INLET NOISE OF THERMAL ENGINES. IT RELATES TO A DEVICE FORMING AN AIR PASS 83 BETWEEN A CARBURETOR BOX 65 AND A MUFFLER BOX 85, AN AIR FILTER DIVIDING THE MUFFLER BOX. THE ALLOWED AIR MUST CIRCULATE THROUGH THE MUFFLER, THROUGH THE AIR INTAKE PASS 83 AND IN THE HOUSING 65 BEFORE GOING TO THE CARBURETOR 71 SO MUCH THAT THE NOISE TRANSMITTED IN THE REVERSE DIRECTION IS STRONGLY CUSHIONED. APPLICATION TO CHAIN SAWS.

SILENT INTERNAL COMBUSTION ENGINE

Dans ce moteur à combustion interne dont le corps est entouré entièrement d'un coffrage amortisseur de bruit et qui comporte un ventilateur aspirant de l'air de refroidissement à travers un canal d'admission allongé à plusieurs coudes qui est revêtu de couches d'insonorisation et s'étend de préference au-dessus du corps du moteur et sur toute la longueur de celui-ci l'air de refroidissement, après avoir traveré le coffrage du corps du moteur, étant évacué à l'air libre par un canal d'échappement pareillement allongé et revêtu de couches d'insonorisation, le filtre à air comburant 34 possède une enveloppe annulaire aplatie particulière 36 et est disposé à l'intérieur du canal d'admission 20, 18, 22, et en ce que l'air entre dans l'enveloppe annulaire du filtre par un tube 40 semblable à un schnorchel placé à l'intérieur du coffrage, de préférence parallèlement à l'axe des cylindres. In this internal combustion engine, the body of which is completely surrounded by sound-absorbing casing and which has a fan drawing cooling air through an elongated, multi-bend intake duct which is coated with soundproofing layers. and preferably extends above the body of the motor and over the entire length thereof, the cooling air, after having passed through the casing of the body of the motor, being discharged into the open air by a duct of Exhaust similarly elongated and coated with soundproofing layers, the combustion air filter 34 has a particular flattened annular casing 36 and is arranged inside the intake duct 20, 18, 22, and in that the air enters in the annular envelope of the filter by a tube 40 similar to a snorkel placed inside the formwork, preferably parallel to the axis of the cylinders.

Air supply system for engine with charger, and vehicle containing such system

FIELD: engines. SUBSTANCE: invention can be used in internal combustion engines with chargers. Low pressure air supply system for engine (4), having charger (10) includes low pressure atmospheric air inlet opening (9), charger air compressor (11), air filter (8), low pressure air channel (15) and sound-proofing device (20). Air filter (8) filters air supplied via low pressure air inlet opening. Low pressure air channel (15) is connected with air filter (8). Soundproofing device (20) is connected with low pressure air channel (15) on inlet end, is located near charger air compressor (11) inlet. Soundproofing device (20) includes housing (21) and chamber. Soundproofing device (20) chamber is located around part of housing (21) and functionally connected with air duct, formed by housing (21), through plurality of bypass openings formed by elongated holes, which long edges are parallel to air flow path through air channel. Invention discloses vehicle with engine containing low-pressure air supply system. EFFECT: technical result consists in noise level reduction. 10 cl, 10 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 606 463 C2 (51) МПК F01N 1/24 (2006.01) F02M 35/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2012143665, 12.10.2012 (24) Дата начала отсчета срока действия патента: 12.10.2012 (72) Автор(ы): ОСТЛЕР Уилл (GB), ЛИСОН Робби Эндрю (GB) (73) Патентообладатель(и): Форд Глобал Технолоджис, ЛЛК (US) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: US 4969536 A, 13.11.1990. US Приоритет(ы): (30) Конвенционный приоритет: 12.10.2011 GB 1117577.5 (45) Опубликовано: 10.01.2017 Бюл. № 1 Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" 2 6 0 6 4 6 3 (43) Дата публикации заявки: 20.04.2014 Бюл. № 11 4204586 A, 27.05.1980. GB 1534745 A, 06.12.1978 . US 2009/0314241 A1, 24.12.2009. SU ...

Attenuation device for noises coming form i.c. engine operation and vehicle air conditioning system comprises membrane responding to predetermined vibration frequency and is positioned on hole in air inlet pipe

The attenuation device (1) for noises coming from a combustion engine (4), particularly noises transmitted by the engine or air conditioning air inlet circuit is positioned on the air inlet pipe (2) on an additional hole (6) in this pipe. The device is composed mainly of a membrane responding to a predetermined vibration frequency. An Independent claim is included for a air admission circuit for an engine or an air conditioning device.

Air filter for use in air inlet main branch of internal combustion engine of car, has residual volume provided free from filter media, and including enclosure with opening placed through wall delimiting enclosure

The filter (4) has a filter media (11) and a residual volume (12), which is provided free from the filter media. An air inlet main branch (2) constitutes an air inlet line of an internal combustion engine. The residual volume includes an enclosure (15) with an opening (13) placed through a wall delimiting the enclosure. The enclosure is provided with an acoustically absorbent coating (16) e.g. melamine foam. The opening has a diameter, which is equal to a diameter of the air inlet main branch divided by a division of initial flow of discharge and a flow of balance. An independent claim is also included for an air inlet main branch.

DEVICE AND METHOD FOR MITIGATING SOUND

L'invention porte notamment sur un dispositif d'atténuation destiné à atténuer des ondes acoustiques générées par une source (1) émettant des ondes acoustiques dont les fréquences sont comprises entre f1 et f2 et dont les niveaux de pression sont compris entre n1 et n2, le dispositif d'atténuation comprenant au moins un absorbeur (11) acoustique comprenant au moins une membrane non-linéaire; - le dispositif d'atténuation étant configuré de manière à ce que la première face (13) de l'absorbeur (11) soit en communication acoustique avec la source (1) ; - le dispositif d'atténuation comprend au moins un élément de couplage (16) de la deuxième face (14) avec la source (1), l'élément de couplage (16) étant configuré pour transmettre à la deuxième face (14) des ondes acoustiques fonction des ondes acoustiques émises par la source (1), et dont la phase et/ou l'amplitude conduit à un différentiel de pressions des ondes acoustiques parvenant respectivement sur les première et deuxième face au même instant. L'invention comprend également un système et un procédé d'atténuation des sons. The invention relates in particular to an attenuation device for attenuating acoustic waves generated by a source (1) emitting acoustic waves whose frequencies are between f1 and f2 and whose pressure levels are between n1 and n2, the attenuation device comprising at least one acoustic absorber (11) comprising at least one non-linear membrane; the attenuation device being configured so that the first face (13) of the absorber (11) is in acoustic communication with the source (1); the attenuation device comprises at least one coupling element (16) of the second face (14) with the source (1), the coupling element (16) being configured to transmit to the second face (14) acoustic waves function of the acoustic waves emitted by the source (1), and whose phase and / or amplitude leads to a pressure differential of the acoustic waves arriving respectively on ...

RESIN ADDITION MANIFOLD

L'invention concerne un collecteur d'admission en résine comprenant un réservoir d'égalisation de pression, un nombre pair de tubulures d'admission (61) s'étendant entre le réservoir et les cylindres d'un moteur, et des rebords de montage (62) définis dans des portions d'extrémité antérieures des tubulures (61), ces rebords étant pourvu de trous pour boulons (68) reliés à la culasse par vissage, et au moins deux nervures (70A, 70B) séparées par un espace (S1, S2) et formées entre des parois opposées des tubulures (61), afin d'empêcher un élément de vissage (80) de tomber. A resin intake manifold includes a pressure equalizing reservoir, an even number of intake manifolds (61) extending between the reservoir and the cylinders of an engine, and mounting flanges. (62) defined in front end portions of the pipes (61), these flanges being provided with bolt holes (68) connected to the cylinder head by screwing, and at least two ribs (70A, 70B) separated by a space ( S1, S2) and formed between opposing walls of the tubes (61), in order to prevent a screw member (80) from falling.

RESIN INTAKE MANIFOLD FOR MOTOR VEHICLE ENGINE

L'invention concerne un collecteur d'admission en résine comprenant au moins deux corps séparés (21, 31) dans lesquels des portions saillantes (25, 38) de parties de soudage (24, 37) sont soudées par vibration ; et une paroi de recouvrement (27) dans laquelle l'une des parties de soudage est disposée du côté intérieur ou extérieur de la partie saillante correspondante en étant espacée de celle-ci. Les portions saillantes comportent des portions saillantes parallèles (26, 39) s'étendant parallèlement à une direction de vibration (Di). Une paroi de recouvrement (28) disposée orthogonalement à la direction (Di) comporte un prolongement (29) qui s'étend jusqu'à l'élément situé de l'autre côté pour éviter qu'une bavure (B) de soudage de la partie saillante parallèle ne déborde au-delà de la paroi, une rainure en creux (41) pour recevoir le prolongement étant disposée dans une partie latérale de l'élément situé de l'autre coté. The invention relates to a resin intake manifold comprising at least two separate bodies (21, 31) in which projecting portions (25, 38) of welding parts (24, 37) are welded by vibration; and a cover wall (27) in which one of the welding parts is arranged on the inner or outer side of the corresponding protruding part being spaced therefrom. The projecting portions include parallel projecting portions (26, 39) extending parallel to a direction of vibration (Di). A covering wall (28) disposed orthogonally to the direction (Di) has an extension (29) which extends to the element located on the other side to prevent a burr (B) from welding the parallel projecting part does not project beyond the wall, a hollow groove (41) for receiving the extension being arranged in a lateral part of the element situated on the other side.

INTERNAL COMBUSTION ENGINE EQUIPPED WITH A SOUNDPROOFING ENCLOSURE

MOTEUR EQUIPE DE TUBES D'ASPIRATION D'AIR COMBURANT QUI ABOUTISSENT AUX CHAMBRES DE COMBUSTION ET EN AMONT DESQUELS EST MONTE UN FILTRE, AINSI QUE D'UNE ENVELOPPE D'INSONORISATION QUI LE COIFFE ET QUI COMPORTE AU MOINS UN ORIFICE D'ENTREE D'AIR. LES TUYAUX D'ASPIRATION7 SONT INTEGRES A L'ENVELOPPE2 ET SONT RACCORDES DIRECTEMENT AUX TUBULURES D'ASPIRATION8 DU MOTEUR1. APPLICATION EN PARTICULIER AUX MOTEURS DES VEHICULES AUTOMOBILES. ENGINE EQUIPPED WITH COMBUSTION AIR SUCTION TUBES WHICH END THE COMBUSTION CHAMBERS AND UPPER WHICH IS FITTED A FILTER, AS WELL AS A SOUNDPROOFING ENCLOSURE WHICH INCLUDES AT LEAST ONE INLET OPENING. AIR. THE SUCTION PIPES7 ARE INTEGRATED IN THE ENCLOSURE2 AND ARE CONNECTED DIRECTLY TO THE SUCTION TUBING8 OF THE MOTOR1. APPLICATION IN PARTICULAR TO MOTORS OF AUTOMOTIVE VEHICLES.

METHOD FOR MANUFACTURING AN AIR INTAKE DUCT

L invention concerne un procédé de fabrication d un conduit (30) d admission d air et d atténuation des bruits de bouche et des bruits rayonnés destiné à être relié à un moteur à combustion interne. Le procédé comprend les étapes de : (a) : fourniture d un moule (1) comprenant deux empreintes (2) de moulage, chaque empreinte (2) présentant au moins une rainure (4) adaptée pour mouler une nervure (32) et présentant au moins deux demi-alésages (5) adaptés pour mouler des manchons (34-36) d extrémité, (b) : fourniture d un noyau (8) adapté pour être positionné entre les empreintes (2), pour mouler un conduit (30) d admission d air, (c) : positionnement sur le noyau (8) d une nappe tubulaire (9) en matériau poreux à l air, (d) : positionnement entre les empreintes (2) de moulage du noyau (8) avec la nappe tubulaire (9), (e) : injection dans la, ou chaque, rainure (4) et dans chaque demi-alésage (5), de chaque empreinte (2) d un matériau thermoplastique, pour surmouler des nervures (32) et des manchons (34-36) d extrémité sur la nappe tubulaire (9), afin de former un conduit (30). The invention relates to a method of manufacturing an air intake duct (30) for attenuation of mouth noises and radiated noises intended to be connected to an internal combustion engine. The method comprises the steps of: (a) providing a mold (1) comprising two molding cavities (2), each cavity (2) having at least one groove (4) adapted to mold a rib (32) and having at least two half-bores (5) adapted to mold end sleeves (34-36), (b): providing a core (8) adapted to be positioned between the impressions (2), for molding a conduit (30) ) air intake, (c): positioning on the core (8) of a tubular web (9) of air-porous material, (d): positioning between the impressions (2) molding the core (8) with the tubular web (9), (e): injecting into the or each groove (4) and into each half-bore (5), each imprint (2) of a thermoplastic material, to overmold ribs (32) and end sleeves (34-36) on the tubular web ...

RESIN ADMISSION COLLECTOR FOR MOTOR VEHICLE ENGINE

ELEMENT OF AN AIR INTAKE SYSTEM BASED ON A PLASTIC MATERIAL OF AN INTERNAL COMBUSTION ENGINE

AIR INTAKE DEVICE FOR ENGINE, AND CHAIN SAW

SOUNDPROOF AIR FILTER

INTAKE DEVICE FOR AN INTERNAL COMBUSTION AUTOMOTIVE ENGINE

LA PRESENTE INVENTION CONCERNE UN DISPOSITIF D'ADMISSION POUR UN MOTEUR AUTOMOBILE A COMBUSTION INTERNE. SELON L'INVENTION, CE DISPOSITIF COMPREND UN CONDUIT ABSORBANT LES SONS20 FORME DANS UN MATERIAU POREUX ET FORMANT AU MOINS UNE PARTIE D'UN PASSAGE D'AIR A TRAVERS LEQUEL L'AIR EST ASPIRE PAR LE MOTEUR. L'INVENTION S'APPLIQUE NOTAMMENT DANS L'INDUSTRIE AUTOMOBILE. THE PRESENT INVENTION RELATES TO AN INTAKE DEVICE FOR AN INTERNAL COMBUSTION AUTOMOTIVE ENGINE. ACCORDING TO THE INVENTION, THIS DEVICE INCLUDES A SOUND ABSORBING DUCT 20 SHAPED IN A POROUS MATERIAL AND FORMING AT LEAST PART OF AN AIR PASS THROUGH WHICH THE AIR IS SUCKED BY THE MOTOR. THE INVENTION APPLIES IN PARTICULAR TO THE AUTOMOTIVE INDUSTRY.

FRESH AIR INLET DEVICE FOR VEHICLE INTERNAL COMBUSTION ENGINE

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2016 136 535 A (51) МПК F02M 35/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016136535, 06.02.2015 (71) Заявитель(и): РЕНО С.А.С. (FR) Приоритет(ы): (30) Конвенционный приоритет: 13.02.2014 FR 1451112 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 13.09.2016 R U (43) Дата публикации заявки: 16.03.2018 Бюл. № 08 (72) Автор(ы): МАРРЕЛЬ Себастьян (FR), ВАРГАС Марсело (BR) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2015/121569 (20.08.2015) R U (54) УСТРОЙСТВО ВПУСКА СВЕЖЕГО ВОЗДУХА ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ АВТОТРАНСПОРТНОГО СРЕДСТВА (57) Формула изобретения 1. Устройство впуска свежего воздуха, выполненное с возможностью размещения в автотранспортном средстве для питания двигателя автотранспортного средства, при этом устройство содержит впускную емкость (1), имеющую часть (1а) в виде канала, и воздухозаборник (11), содержащий впускное отверстие (16) для забора свежего воздуха, отличающееся тем, что впускное отверстие (16) расположено на верхней стороне (11b) воздухозаборника (11) и направлено вверх, когда устройство установлено в автотранспортном средстве, при этом емкость (1) содержит крышку (5), расположенную между воздухозаборником (11) и впускной емкостью (1). 2. Устройство впуска по п. 1, отличающееся тем, что на крышке (5) и на воздухозаборнике (11), соответственно, выполнены два соединительных отверстия (8, 12), причем оба отверстия (8, 12) имеют по существу идентичную форму и расположены друг против друга. 3. Устройство по п. 1, отличающееся тем, что воздухозаборник (11) имеет форму, открытого вверх короба с внутренним картером (13), содержащим два боковых воздушных отверстия (14а, 14b). 4. Устройство по п. 3, отличающееся тем, что внутренний картер (13) имеет нервюры (15) на своей наружной поверхности. 5. Устройство по п. 1, отличающееся тем, что воздухозаборник (И) имеет наклон на одном краю своей верхней стороны (11b). Стр.: ...

RESIN INTAKE MANIFOLD

L'invention concerne un collecteur d'admission en résine comprenant un élément de base (1) formé d'une seule pièce et comportant une partie formant paroi de surface inférieure de passage de distribution courbe en forme de U (13), une partie formant rebord de montage de moteur (12) définie dans l'une des extrémités de la partie (13), une partie formant paroi périphérique de réservoir d'égalisation de pression (14) définie dans l'autre extrémité et du côté inférieur de la partie (13), et une partie formant paroi périphérique de silencieux auxiliaire (15) formée de manière solidaire dans un espace mort du côté de la surface inférieure de la partie (13) et entre la partie formant paroi périphérique de réservoir et la partie formant rebord de montage de moteur. Disclosed is a resin intake manifold comprising a base member (1) formed in one piece and having a U-shaped curved distribution passage lower surface wall portion (13), a portion forming motor mounting flange (12) defined in one end of part (13), a pressure equalizing tank peripheral wall part (14) defined in the other end and on the underside of the part (13), and an auxiliary silencer peripheral wall portion (15) integrally formed in a dead space on the lower surface side of the portion (13) and between the peripheral tank wall portion and the rim portion engine mounting.

DECOUPLING BELLOW, IN PARTICULAR FOR AN AIR INTAKE SYSTEM IN A TURBO-COMPRESSOR ENGINE

RESIN ADDITION MANIFOLD

L'invention concerne un collecteur d'admission en résine comprenant un réservoir d'égalisation de pression (54) disposé entre un organe d'étranglement et un moteur, et des tubulures de raccordement (55) formant des passages d'air (551) reliés aux cylindres du moteur.Dans ce collecteur, les tubulures de raccordement (55) sont disposées de telle sorte que les positions centrales des passages d'air (551) soient reparties suivant une configuration courbe, les parties centrales des passages d'air des tubulures intérieures étant plus hautes que celles des passages d'air des tubulures extérieures.Par ailleurs, la paroi (54a) du réservoir située en face des tubulures (55) présente une forme courbe élargie dans une partie centrale. The invention relates to a resin intake manifold comprising a pressure equalization tank (54) disposed between a throttle member and an engine, and connection pipes (55) forming air passages (551). connected to the cylinders of the engine.In this manifold, the connection pipes (55) are arranged so that the central positions of the air passages (551) are distributed in a curved configuration, the central parts of the air passages of the inner tubes being higher than those of the air passages of the outer tubes. Moreover, the wall (54a) of the reservoir located in front of the tubes (55) has a widened curved shape in a central part.

Bulldozer air intake noise reducer - has sound absorbing walls bent at right angles

The air intake channel is provided with a number of absorbing walls, each wall having a section bent at an angle approaching 90 deg to form an air intake with a complicated configuration. The sound absorbing material is of glass wool covered with fibre glass made water tight by a coating of chlorbutadene (Neoprene). Both top surfaces of the sound absorbing materials are protected by netting, and the entire lay out is a louvre type baffle.

ACOUSTIC MITIGATION DEVICE FOR AN INTAKE LINE OF A THERMAL COMBUSTION ENGINE EQUIPPED WITH A TURBOCHARGER

La présente invention concerne un dispositif d'atténuation acoustique (10) pour une ligne d'admission d'un moteur à combustion thermique équipée d'un turbocompresseur, caractérisé en ce qu'il comprend : - un conduit (2) d'acheminement de gaz possédant une paroi périphérique (3) munie d'au moins une ouverture traversante (4), ladite ouverture traversante (4) servant de logement à un élément de séparation (7), et - au moins une chambre périphérique (5) disposée autour du conduit (2) de manière à entourer totalement ou partiellement l'élément de séparation (7), dans lequel l'élément de séparation (7) est formé dans un matériau poreux de manière à permettre une circulation de gaz entre le conduit (2) et la chambre périphérique (5), et dans lequel la chambre périphérique (5) est au moins partiellement remplie avec un élément d'absorption acoustique (8). The present invention relates to an acoustic attenuation device (10) for an intake line of a thermal combustion engine equipped with a turbocharger, characterized in that it comprises: - a conduit (2) for conveying gas having a peripheral wall (3) provided with at least one through opening (4), said through opening (4) serving as a housing for a separation element (7), and - at least one peripheral chamber (5) disposed around of the conduit (2) so as to completely or partially surround the separating element (7), in which the separating element (7) is formed in a porous material so as to allow gas circulation between the conduit (2 ) and the peripheral chamber (5), and in which the peripheral chamber (5) is at least partially filled with an acoustic absorption element (8).

AIR FILTER COMPRISING AN AIR INTAKE LINE OF AN ENGINE OF A MOTOR VEHICLE

Acoustic device manufacturing method for reducing noise emission from vehicle's internal combustion engine, involves cutting and discharging end of outer wall of parison from side segment of resonator body equipped with through holes

The method involves introducing a parison with outer wall (2) and inner wall in a closed mold, and insufflating air to obtain a resonator body (4) formed by a rotation part with enlarged median section separating side segments (5-1, 5-2). Through holes (9) are formed in one of the segments. The inner wall is separated from the outer wall and folded toward the other segment to bring the holes at right of the section to define a central duct (10) enclosed by an annular resonance chamber (6) communicating with the duct. End of the outer wall is cut and discharged from the former segment.

ABSORPTION SOUND ABSORBER, ESPECIALLY FOR A ROTARY PISTON BLOWER

Patent FR2307975B3

CONDUIT FOR THE CIRCULATION OF A GASEOUS FLUID, IN PARTICULAR SUBJECT TO AN ACTION OF SUCTION

FLEXIBLE AIR DUCT IN DENSIFY ELASTOMER IMPROVING THE ATTENUATION OF THE NOISE GENERATED BY A TURBOCHARGER

La présente invention concerne un conduit (1) d'acheminement de gaz, tel qu'un conduit d'acheminement d'air turbo-comprimé pour moteur à combustion, ledit conduit (1) étant caractérisé en ce qu'il comprend au moins un tronçon (3, 5), dit « tronçon flexible », dont la section de passage (8) est délimitée latéralement par une paroi (10) qui comporte, dans son épaisseur, au moins une couche réalisée dans un silicone élastomère qui présente une masse volumique supérieure à 1,20 g/cm , et de préférence comprise entre 1,30 g/cm et 1,45 g/cm , de manière à atténuer les émissions sonores dudit conduit (1). The present invention relates to a pipe (1) for conveying gas, such as a pipe for conveying turbo-compressed air for a combustion engine, said pipe (1) being characterized in that it comprises at least one section (3, 5), called "flexible section", whose passage section (8) is delimited laterally by a wall (10) which comprises, in its thickness, at least one layer made of an elastomeric silicone which has a mass volume greater than 1.20 g / cm, and preferably between 1.30 g / cm and 1.45 g / cm, so as to attenuate the sound emissions of said duct (1).

Acoustic attenuator for an engine booster

An acoustic attenuator 20 for an engine booster such as a turbocharger 10 for an engine 4 is disclosed in which the acoustic attenuator 20 includes an attenuator chamber 28 in which is located at least one absorption media 140 . The acoustic attenuator 20 is located adjacent an inlet port of the turbocharger 10 so as to attenuate any acoustic pressure waves by dissipative reaction with the absorption media 140 before they have chance to reach other components of a low pressure supply system 50 for the engine 4.

By-pass one-way valve and venturi device having the same

Plastics air intake, for an internal combustion motor, is composed of a plastics material including barite, to give an improved acoustic transparency

The air intake, for an internal combustion motor, is composed of a plastics material including barite, to give an improved acoustic transparency.

Air intake for compressor

본 발명은 압축기(2)를 위한 흡기 장치(1)에 관한 것이다. 흡기 장치(1)는, 원주방향으로 지지 구조물(2)의 축(4)을 중심으로 배열되고 반경방향으로 연장되는 복수의 스트럿(3)을 갖는, 지지 구조물(2)을 포함한다. 또한, 흡기 장치(1)는, 복수의 스트럿(3)의 반경방향 연속선 내에 배열되는 복수의 제1 소리-감쇠 요소(5)를 포함한다. 또한, 흡기 장치(1)는, 인접한 제1 소리-감쇠 요소들(5) 사이에 각각 배열된, 복수의 제2 소리-감쇠 요소(6)를 포함한다. 본 발명은 또한 본 발명에 따른 흡기 장치를 갖는 배기-가스 터보차저, 및 이러한 종류의 배기-가스 터보차저를 갖는 내연 기관에 관한 것이다.

Customized insulating cover for intake and exhaust system, and method preparing the same

The present invention relates to a customized thermal insulation cover for an automobile intake and exhaust system and a method of manufacturing the same. More particularly, the present invention relates to a heat insulation cover for a vehicle, To a customized thermal insulation cover for an automobile intake and exhaust system, and a method of manufacturing the same, which can be manufactured to fit the shape of the hose of the automobile intake and exhaust system and can be fitted to the outer circumferential surface thereof.

Internal combustion engine

FIELD: engine engineering. SUBSTANCE: engine comprises a head of cylinders wherein combustion chambers are formed. The chambers are provided with means for distributing fuel and air which are connected with inlet valves from the side of the combustion chambers and free ends of which are coupled to the common pipe line. The pipe line is provided with air cleaner and air gate. The inlet pipes are provided with a facility for silencing and suppression of gas pulsations. The latter is made up as a pressure-tight casing that enclose the inlet pipe lines with a spaced relation. The portions of the pipe line that are inside the space are provided with openings that connect the spaces with the inlet pipes. EFFECT: enhanced silencing. cl, dwg $11690с ПЧ ГЭ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ” 2 069 773‘ Е 02 В 29/02, Е 02 М 35/12 13) СЛ 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 93052935/06, 22.11.1993 (46) Дата публикации: 27.11.1996 (56) Ссылки: 1.Европейская заявка М 1379926, кл. Е 02 М 35/12, 1990. 2.Заявка ФРГ М 2823293, кл. Е 02 М 35/12, 1918. (71) Заявитель: Акционерное общество "НТЦ АвтоВАЗ" (72) Изобретатель: Фесина М.И., Ротман Е.Г., Соколов А.В. (73) Патентообладатель: Акционерное общество "НТЦ АвтоВАЗ" (54) ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ (57) Реферат: Использование: в двигателях внутреннего сгорания с впрыском топлива в цилиндры. Сущность — изобретения: — двигатель содержит головку цилиндров, в которой сформированы камеры сгорания, снабженные средствами для распределения топлива и воздуха, соединенные со стороны камер сгорания впускными клапанами и сходящиеся свободными концами в общий трубопровод, на котором установлен воздухоочиститель и воздушная заслонка, а также смонтировано на впускных трубах устройство для подавления шумов и пульсаций газа. Последнее выполнено в виде герметичного кожуха, с зазором охватывающего впускные трубы, при этом участки труб, размещенные внутри полости, снабжены ...

DEVICE FOR ATTENUATING MOUTH NOISES AND RADIANT NOISE

L'invention concerne un dispositif (1) d'atténuation des bruits de bouche et des bruits rayonnés qui comprend un conduit (2) d'acheminement de gaz interne relié à un moteur à combustion, le conduit (2) présentant une paroi périphérique (23) sur au moins une portion de laquelle est disposé au moins un élément poreux à l'air (4), des moyens d'atténuation sonore comprenant au moins un tube (3) disposé dans le conduit d'acheminement, au moins une chambre périphérique (5) étant délimitée à l'intérieur du conduit (2) entre le tube (3) et la paroi périphérique (23) du conduit (2), le tube (3) comprenant au moins une portion présentant un orifice (30) qui permet à l'intérieur du tube (3) de communiquer avec la chambre périphérique (5). The invention relates to a device (1) for attenuation of mouth noises and radiated noises, which comprises a conduit (2) for conveying internal gas connected to a combustion engine, the duct (2) having a peripheral wall ( 23) on at least a portion of which is disposed at least one air porous member (4), sound attenuation means comprising at least one tube (3) disposed in the delivery conduit, at least one chamber peripheral (5) being delimited inside the conduit (2) between the tube (3) and the peripheral wall (23) of the conduit (2), the tube (3) comprising at least one portion having an orifice (30) which allows the inside of the tube (3) to communicate with the peripheral chamber (5).

AIR FILTER WITH ACOUSTIC PROTECTION

Filtre à air (10) d'un ensemble moteur notamment d'un groupe motopropulseur de véhicule automobile comprenant un moteur thermique agencé dans un compartiment moteur, ledit filtre (10) est fixé dans le compartiment moteur avec le moteur et comprend un carter (11) avec des parois latérales verticales (14) entre une paroi plane supérieure (15) et une paroi plane inférieure (16), caractérisé en ce que ledit filtre (10) comporte une enveloppe de protection (30) acoustique extérieure autour du carter (11) et tournée vers le moteur. An air filter (10) of an engine assembly including a power unit of a motor vehicle comprising a heat engine arranged in an engine compartment, said filter (10) is fixed in the engine compartment with the engine and comprises a housing (11 ) with vertical sidewalls (14) between an upper planar wall (15) and a lower planar wall (16), characterized in that said filter (10) has an outer acoustic shield (30) around the housing (11). ) and turned towards the engine.

Air intake device for IC engines has air-permeable aperture, formed by porous PET element, in air intake section to connect it to its environment

The air intake device (1) has an intake air section (2) with air intake duct (6) connected to an intake for ambient air, which serves as intake air path to an engine body. A permeable aperture (16) has an opening located within part of the air section, to connect the section to its environment, and a porous element to cover the opening. The aperture is positioned between in an area between a central position (A) of the overall length (l1) of the intake duct, and a central position (B) o the overall length (l2) of the intake section. The permeable aperture is formed by hot-sealing of a porous PET-element to the outer face of the intake section opening, in the plastic wall surfaced of the duct and the un-cleaned side (7) of the air cleaner (3).