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39results about How to "Increased transmission loss" patented technology
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Light-emitting apparatus and illuminating apparatus
InactiveCN1674317AIncrease the intensity of radiant lightReduced light extraction efficiencyOther plywood/veneer working apparatusMechanical surface treatmentPhosphorLight emitting device
There is provided a light-emitting apparatus with favorable radiation light intensity, which is excellent in light extraction efficiency, color temperature and color rendering property. The light-emitting apparatus includes a light-emitting element, a base body having, on its top surface, a placement portion for emplacing thereon the light-emitting element, a frame body attached to the top surface of the base body so as to surround the placement portion, a light transmitting member disposed inside the frame body so as to cover the light-emitting element, and phosphors contained in the light transmitting member, which performs wavelength conversion on the light emitted from the light-emitting element. The light transmitting member has a pre-cured viscosity ranging from 0.4 to 50 Pa.s.
Owner:KYOCERA CORP
Belt transmission device
ActiveUS20090062050A1Increased transmission lossCoefficient of frictionV-beltsRopes and cables for vehicles/pulleyTorque transmissionFriction force
[Purpose] A belt drive system, in which a drive belt 20 is wrapped between a drive pulley 1 drivingly connected to a drive source 11 and a driven pulley 2 connected to an driven unit 12 via a joint 32 provided to stop torque transmission when receiving a load equal to or over a predetermined value and torque is transmitted via the drive belt 20 from the drive pulley 1 to the driven pulley 2, ensures that when the driven unit 12 malfunctions, the joint 32 stops the torque transmission without unnecessarily increasing the coefficient of friction against the driven pulley 2 or the belt tension.[Solution] The belt drive system is configured so that when a slip corresponding to the load on the joint 32 equal to or over the predetermined value occurs between the drive belt 20 and the driven pulley 2, the coefficient of friction between the drive belt 20 and the driven pulley 2 becomes higher than that before the slip occurs.
Owner:BANDO CHEM IND LTD
Colored optical fiber, optical fiber ribbon, and optical fiber cable
InactiveUS20140226941A1Good anti-microbend propertyIncreased transmission lossGlass optical fibreFibre mechanical structuresRelaxation modulusOptical fiber cable
The present invention provides a colored optical fiber that shows anti-microbend property and hot-water resistance, an optical fiber ribbon that utilizes the same, and an optical fiber cable.It is a colored optical fiber 1, which comprises two coating layers of a primary coating layer 31 and a secondary coating layer 32, wherein either one of the primary coating layer 31 or the secondary coating layer 32 is colored, both coating layers have equilibrium elastic moduli of 60 MPa or less, and the secondary coating layer 32 has a relaxation modulus of 410 MPa or more, an optical fiber ribbon 4 that utilizes it, and an optical fiber cable 8.
Owner:FURUKAWA ELECTRIC CO LTD
Automobile noise reduction system with one-fourth wavelength pipes combined with Helmholtz silencer
InactiveCN103790743AIncreased transmission lossSpeed up the flowAir cleaner and silencer combinationAir filtrationAir filter
The invention discloses an automobile noise reduction system with one-fourth wavelength pipes combined with a Helmholtz silencer, and belongs to the technical field of environment control and improvement in order to solve the problems that an existing automobile noise reduction system is high in manufacturing cost, poor in noise elimination effect, high in air inlet resistance and consumed power, poor in fuel economy and not suitable for various automobiles. The Helmholtz silencer is communicated with the side wall of a front air inlet guide pipe, the front air inlet guide pipe is communicated with an air filter, an air filtering net is arranged in the air filter, the air filter is communicated with a first rear air inlet guide pipe, the first rear air inlet guide pipe is communicated with a second rear air inlet guide pipe through a flexible connecting pipe, an air throttling valve is arranged on the second rear air inlet guide pipe, the second rear air inlet guide pipe is communicated with an air inlet header pipe, the air inlet header pipe is communicated with an air inlet manifold, and one ends of the two one fourth wavelength pipes are both connected and communicated with the side wall of the first rear air inlet guide pipe. According to the system, while power property and economy of an automobile are maintained, the noise of the whole automobile can be lowered particularly, the environment quality can be improved, and the system is suitable for various automobiles.
Owner:HEILONGJIANG INST OF TECH
Composite cable
InactiveUS20100290748A1Increased transmission lossFacilitate transmissionElectrical apparatusFibre mechanical structuresElectrical conductorEngineering
A composite cable that is able to prevent both the unfastening of the cable end from the connector and the occurrence of the bending distortion of the optical fiber, to both of which the expansion and shrinkage of the overall sheath is responsible, is provided. The composite cable comprises a stranded wire that is a strand of a plurality of insulated conductors each of which is a conductor with insulation covering thereon, an optical fiber ribbon that has a plurality of optical fibers parallelly-arranged in a row, and an overall sheath that covers the stranded wire and the optical fiber ribbon in a bundle, wherein the composite cable has a deterrent positioned on outer side of the stranded wire and the optical fiber ribbon parallelly-arranged in a row along the width direction of the overall sheath for deterring expansion and shrinkage of the overall sheath. Further, the composite cable has a bonding jacket between the deterrent and the overall sheath for making the deterrent adhere to the overall sheath; alternatively, the deterrent has a patterned indented shape on the surface thereof for making the deterrent adhere to the overall sheath.
Owner:HITACHI CABLE
Geared turbine machine
InactiveCN103806957AIncreased transmission lossLow efficiencyGas turbine plantsSteam engine plantsGear driveDrive shaft
A geared turbine machine integrates driving and / driven devices into mechanical transmission lines through an integrated transmission mechanism, wherein the integrated transmission mechanism comprises a central bull gear with a bull gear shaft, at least two pinions with pinion shafts, and a drive pinion with a drive shaft, wherein the drive pinion is arranged between the bull gear and the first pinion, and meshed with the bull gear, as well as with the first pinion, the bull gear is in operative connection with the second pinion, the bull gear shaft is at least in non-rotatable connection with the driving and / driven devices, the drive shaft of the drive pinion is non-rotationally connected to at least one driving device, and the end portion of the pinion shafts is at least in non-rotatable connection with the driving and / driven devices. The bull gear is so connected to the second pinion in operative connection that between the bull gear and the pinion is arranged with an intermediate idle gear, which is meshed with both the large wheel, as well as with the second pinion.
Owner:MAN ENERGY SOLUTIONS SA +1
Horizontal-type dust collector with damping connecting device
InactiveCN103156549AIncrease the loss when the vibration propagates outwardIncrease lossSuction cleanersRubber materialMotor vibration
The invention discloses a horizontal-type dust collector with a damping connecting device. The horizontal-type dust collector with the damping connecting device comprises a bottom case, a front cover and a rear cover, wherein a dust collecting device and a motor unit are arranged in the bottom case, the front cover and the rear cover are connected above the bottom case, a motor housing bottom wall of the motor unit and the bottom case are fixedly connected through a bolt, a bottom wall bolt connecting part is formed at the connection position of the motor housing, a bottom case bolt connecting part is correspondingly formed on the bottom case, and a damping device with elasticity, a rubber spring, is arranged between the bottom wall bolt connecting part and the bottom case bolt connecting part. The rubber spring is made of rubber materials with good elasticity, the loss when the motor vibration spreads outward is increased, on the condition that a vibration source is unvarying, vibration spreading paths are cut off as much as possible, vibration path transmission losses are increased, outward spreading of vibration is lowered, and therefore vibration noises of the overall machine can be lowered, and the roles of reducing vibration, lowering damage of a machine body, and improving the vibration noises of the overall machine are played.
Owner:NANJING LG PANDA APPLIANCES
Optical fiber
InactiveUS20090022461A1Reduces transmission loss increaseIncreased transmission lossGlass optical fibreOptical fibre with multilayer core/claddingHigh humiditySpectroscopy
An optical fiber which reduces transmission loss increase even in a high humidity environment or under water is provided. To solve the above issue, an optical fiber according to the present invention comprises a glass optical fiber coated with at least two coating layers, soft and hard layers. The optical fiber is further coated by a colored resin to make a colored optical fiber. The hard layer and the color layer of the colored optical fiber have a free volume radius of at least 0.290 nm according to positron annihilation lifetime spectroscopy.
Owner:FURUKAWA ELECTRIC CO LTD
Optical device and light control method
InactiveUS20060104181A1Improve uniformityIncreased transmission lossLaser detailsWavelength-division multiplex systemsLight beamLength wave
In order to prevent a spectrum of a wavelength channel from becoming narrower, a device according to the present invention includes a light dividing section capable of dividing a wavelength spectrum in an input light beam and outputting a plurality of divided light beams, which are spatially separated and have wavelength spectrum portions different from each other, and a wavelength-to-spacial-position-converter capable of spatially multiplexing the wavelength spectrum portions of the plurality of divided light beams from the light dividing section.
Owner:FUJITSU LTD
Optical communication system
ActiveUS20050201713A1Stable communication can be made continuouslyIncreased transmission lossOptical fibre with graded refractive index core/claddingWavelength-division multiplex systemsInfraredHarmonic
A transmission loss of each dried and water-saturated plastic optical fiber (POF) is measured. In range from 500 nm to 720 nm and from 785 nm to 810 nm, the transmission loss P1 of the dried POF and a difference of the transmission loss from the water-saturated POF to the dried POF satisfy at least one of the conditions, 0≦L / P1≦1, 0<L≦100 and 10≦L+P1≦200. Further, in the wavelength range from the ultraviolet ray to infrared ray, the absorption wavelength of OH vibration in water contained in the POF and the absorption wavelength X of harmonic absorptions of atomic vibrations are detected, and the above conditions are the wavelength ranges except the absorption wavelength X. In the performance of optical communication in these wavelength ranges, the transmission loss does not increase so much even when the the POF absorbs water. Therefore the adequate optical communication can be performed stably.
Owner:FUJIFILM HLDG CORP +1
Metal-clad laminate and metal foil with resin
ActiveUS20180297329A1Improve heat resistanceFacilitate transmissionHigh frequency circuit adaptationsPrinted circuit aspectsMetal foilEther
A metal-clad laminate includes an insulating layer including a cured product of a resin composition, and a metal foil disposed on a principal surface of the insulating layer. The resin composition includes a polyphenylene ether copolymer and a thermosetting curing agent, the polyphenylene ether copolymer having an intrinsic viscosity measured in methylene chloride at 25° C. of between 0.03 dl / g and 0.12 dl / g, inclusive. And the polyphenylene ether copolymer has, at a molecular terminal, a group represented by formula (1) or formula (2) at an average number of 1.5 to 3 per one molecule. Further, the metal foil has a first surface that is in contact with the insulating layer, the first surface having a 10-point average roughness (Rz) of 2.0 μm or less. And the metal foil includes a barrier layer disposed at a side of the first surface, the barrier layer containing cobalt.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
Optical cable
InactiveCN103969773AIncreased transmission lossFibre mechanical structuresEngineeringOptical fiber cable
An optical cable includes an optical fiber ribbon core wire provided with an optical fiber having a core and a cladding that surrounds the core, a sheath that surrounds the optical fiber ribbon core wire, and a braid arranged inside the sheath. The braid is formed to include wires woven with each other. In the optical cable, the wire that forms the braid is pushed into the sheath so that the sheath is integrated with the braid.
Owner:SUMITOMO ELECTRIC IND LTD
Resin coated optical fiber
InactiveUS20120163759A1Increased transmission lossImprove long-term reliabilityGlass optical fibreOptical fibre with multilayer core/claddingRoom temperatureYoung's modulus
There is provided a resin coated optical fiber, comprising at least: a glass optical fiber composed of a core and a clad for coating the core; a primary layer made of UV-curing resin in contact with the glass optical fiber; and a secondary layer made of the UV-curing resin disposed on an outer periphery of the primary layer, wherein the primary layer has a two-layer structure of an inner layer in contact with a surface of the clad, and an outer layer for coating the inner layer, wherein the UV-curing resin of the inner layer has Young's modulus of 0.9 MPa or more and 3.0 MPa or less at room temperature in a film state based on JIS standard K7113, and the UV-curing resin of the outer layer has Young's modulus of 0.1 MPa or more and 0.7 MPa or less at room temperature in a film state based on JIS standard K7113.
Owner:HITACHI METALS LTD
Optical transmission line, and optical fiber and dispersion compensating module employed in the same
InactiveUS6862391B2Long distanceLarge capacityOptical fibre with multilayer core/claddingWavelength-division multiplex systemsLength waveDispersion compensation
The present invention relates to an optical transmission line and the like having a chromatic dispersion with a small absolute value as a whole within a signal wavelength band including S, C, and L bands. This optical transmission line comprises a single-mode optical fiber and a dispersion-compensating optical fiber which are connected to each other; and has, as characteristics of the whole optical transmission line at a wavelength of 1550 nm, a chromatic dispersion with an absolute value of 4 ps / nm / km or less, and a dispersion slope of −0.015 ps / nm2 / km or more but less than 0 ps / nm2 / km. Its chromatic dispersion has a maximum value within a wavelength range of 1450 to 1530 nm, and a minimum value within a wavelength range of 1570 to 1620 nm.
Owner:SUMITOMO ELECTRIC IND LTD
Antenna device
ActiveUS20160248167A1Increased transmission lossIncrease the areaPrinted circuit aspectsIndividually energised antenna arraysElectrical conductorDielectric substrate
An antenna device includes a transmission line for propagating high frequency signal, and a plurality of antenna elements connected to the transmission line. The transmission line includes a first plate-shaped conductor, a second plate-shaped conductor, and a third plate-shaped conductor electrically grounded, a first central conductor disposed between the first and second plate-shaped conductors, a second central conductor disposed between the second and third plate-shaped conductors, an electrically connecting member inserted in an inserting hole formed through the second plate-shaped conductor, to electrically connect the first and second central conductors together, and an electrically grounded conductor disposed adjacent to the electrically connecting member. At least one of the first and second central conductors is provided with a through hole formed adjacent to the electrically connecting member, thereby electrically connects together wiring patterns provided on both surfaces, respectively, of a dielectric substrate of the at least one of the first and second central conductors.
Owner:HITACHI METALS LTD
Muffler of double-section expansion chamber of automobile
ActiveCN101655057AWide anechoic frequency rangeOptimize layoutSilencing apparatusMachines/enginesEngineeringExpansion chamber
The invention relates to a muffler of a double-section expansion chamber for developing induction noise of an automobile, which can provide a wider anechoic frequency range. The invention adopts the technical scheme that the muffler of the double-section expansion chamber of the automobile is provided with an expansion chamber and is characterized in that the expansion chamber comprises a left expansion chamber and a right expansion chamber; an inlet and an outlet of each expansion chamber are both provided with inserting pipes, wherein the inlet of the left expansion chamber and the outlet ofthe right expansion chamber share one inserting pipe.
Owner:CHERY AUTOMOBILE CO LTD
Bladeless fan
InactiveCN103470542AGood noise reductionIncreased transmission lossJet pumpsPump installationsAirflowEngineering
The invention discloses a bladeless fan. The bladeless fan comprises a seat, a base and a nozzle on the base, wherein the nozzle is flat and slender, and is gradually reduced from the bottom up, the shell of the nozzle is divided into a left side, a right side, a front end and a rear end, the areas of the left side and the right side are large, the areas of the front end and the rear end are small, the rear end of the shell of the nozzle is close, and the front end is provided with a slot-like air outlet, which is used for receiving and jetting airflow; and the interior of the nozzle comprises a gradually reduced air passage and noise-reducing boards arranged on both sides of the air passage. The bladeless fan provided by the invention ensures that the wind flowing into the gradually reduced air passage from a wind guide cover in the spherical base can flow through the noise-reducing boards and that the resonance generated by the wind flow flowing through small holes is utilized to achieve a good noise-reducing effect. Consequently, the transmission loss of noise in the nozzle is increased, the outward transmission of the noise in the nozzle is inhibited, and the noise outside the fan is decreased; and moreover, the noise-reducing boards are convenient to machine and easy to mount, and only has little resistance to wind.
Owner:JIANGXI VITA TECH
Plastic optical fiber, plastic optical fiber cables, optical fiber cables with plugs with copolymer
InactiveUS7142754B2Reduce transmission lossIncreased transmission lossOptical fibre with multilayer core/claddingCoupling light guidesBobbinMeth-
This invention relates to a copolymer prepared by polymerizing at least a vinyl compound (A) which gives a homopolymer with a refractive index of 1.50 or more, a fluoroalkyl (meth)acrylate (B) represented by the following formula (1) and methyl methacrylate (C), wherein a weight ratio of monomer (A) component / monomer (B) component ((A) / (B)) in the copolymer is within the range of 0.2 to 1; as well as a plastic optical fiber and a plastic optical fiber cable comprising a clad made of the copolymer. This invention can provide a plastic optical fiber and a plastic optical fiber cable exhibiting a reduced transmission loss, minimizing increase in a transmission loss even when being held as a bobbin-wound form, exhibiting a reduced bend loss and can transmit a wide-band data.(In the above formula, X represents H or CH3; and Rf represents fluoroalkyl having 7 to 14 carbon atoms both inclusive and 13 to 25 fluorine atoms both inclusive.).
Owner:MITSUBISHI CHEM CORP
Dual-mode air inlet system of automobile
ActiveCN106050488AIncreased transmission lossReduce transmission lossMachines/enginesAir intakes for fuelAirflowEngineering
The invention relates to a dual-mode air inlet system of an automobile. The dual-mode air inlet system of the automobile comprises an air filter and an air inlet pipe provided with an air inlet. The air outlet end of the air inlet pipe communicates with an air inlet cavity of the air filter through a normally-open pipe. An air outlet cavity of the air filter is connected with an air filter air outlet pipe connected with an engine. The air outlet end of the air inlet pipe further communicates with the air inlet cavity of the air filter through a normally-closed pipe. A semi-active control valve is installed on the normally-closed pipe and provided with a valve block used for controlling the circulation sectional area of airflow in the normally-closed pipe. When the speed of the airflow entering the air inlet is higher than a set value, the circulation sectional area of the airflow is increased along with the increase of the speed of the airflow till the maximum opening degree of the valve block is achieved; and when the speed of the airflow entering the air inlet is smaller than the set value, the circulation sectional area of the airflow is zero. By the adoption of the dual-mode air inlet system of the automobile, the problem of contradiction between air inlet noise lowering and power loss reducing of an existing air filter is solved.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD
Composite sound insulation wallboard for dividing ship cabin
ActiveCN109774262ACompact structureReasonable structureHull panellingsGlass/slag layered productsMicro perforated plateVolumetric Mass Density
A composite sound insulation wallboard for dividing a ship cabin comprises a lower panel. A rock wool layer is arranged on the upper side of the lower panel, and a micro-perforated plate is arranged on the upper side of the rock wool layer at an interval, a glass wool layer is installed on the upper side of the micro-perforated plate, an upper panel is installed on the top surface of the glass wool layer and is parallel to the lower panel, side panels are welded to the two sides of the upper panel and the lower panel respectively, the two sides of the rock wool layer and the glass wool layer are bonded to the side panels, and the two sides of the micro-perforated plate are welded to the side panels; the gap between the upper side of the rock wool layer and the micro-perforated plate formsan air layer. Based on the transmission and reflection mechanism in airborne sound wave propagation, the structural form that materials on the two sides are different in density and thickness is utilized to realize impedance mismatch, the structural shape of the low-density glass wool is maintained through the micro-perforated plate, the sound absorption effect at a low frequency of 1000 Hz or below is improved, and the total sound insulation of the structure is improved finally.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
Composite sound-insulating wall panel for division of ship cabins
ActiveCN109774262BCompact structureReasonable structureHull panellingsGlass/slag layered productsMicro perforated plateClassical mechanics
A composite sound insulation wallboard for dividing a ship cabin comprises a lower panel. A rock wool layer is arranged on the upper side of the lower panel, and a micro-perforated plate is arranged on the upper side of the rock wool layer at an interval, a glass wool layer is installed on the upper side of the micro-perforated plate, an upper panel is installed on the top surface of the glass wool layer and is parallel to the lower panel, side panels are welded to the two sides of the upper panel and the lower panel respectively, the two sides of the rock wool layer and the glass wool layer are bonded to the side panels, and the two sides of the micro-perforated plate are welded to the side panels; the gap between the upper side of the rock wool layer and the micro-perforated plate formsan air layer. Based on the transmission and reflection mechanism in airborne sound wave propagation, the structural form that materials on the two sides are different in density and thickness is utilized to realize impedance mismatch, the structural shape of the low-density glass wool is maintained through the micro-perforated plate, the sound absorption effect at a low frequency of 1000 Hz or below is improved, and the total sound insulation of the structure is improved finally.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
Silencer
InactiveCN109139190AIncreased transmission lossIncrease surface areaSilencing apparatusMachines/enginesGlass fiberAcoustic wave
The invention discloses a silencer. The silencer comprises a shell, an air inlet pipe, an air outlet pipe and a connecting pipe connecting with the air inlet pipe, the interior of the shell at least comprises a first baffle, a second baffle and a Helmholtz cavity formed between the first baffle and the second baffle, the connecting pipe is provided with an extension part extending into the Helmholtz cavity, and the silencer further comprises glass fibers arranged in the Helmholtz cavity in a filling manner. According to the arrangement, the surface area of a resistive silencing element is increased, the sound wave absorbing efficiency is improved, the transmission loss of the Helmholtz cavity is increased, and the silencing amount is increased.
Owner:SHANGHAI TENNECO EXHAUST SYST
Light-emitting apparatus and illuminating apparatus
InactiveCN100373647CIncrease the intensity of radiant lightReduced light extraction efficiencyOther plywood/veneer working apparatusPoint-like light sourceFluorescencePhosphor
There is provided a light-emitting apparatus with favorable radiation light intensity, which is excellent in light extraction efficiency, color temperature and color rendering property. The light-emitting apparatus includes a light-emitting element, a base body having, on its top surface, a placement portion for emplacing thereon the light-emitting element, a frame body attached to the top surface of the base body so as to surround the placement portion, a light transmitting member disposed inside the frame body so as to cover the light-emitting element, and phosphors contained in the light transmitting member, which performs wavelength conversion on the light emitted from the light-emitting element. The light transmitting member has a pre-cured viscosity ranging from 0.4 to 50 Pa.s.
Owner:KYOCERA CORP
Powertrains and Vehicles
ActiveCN111114280BSimple structureCompact structureHybrid vehiclesGas pressure propulsion mountingGear wheelElectric machinery
The invention discloses a power drive system and a vehicle, including a first motor, a first clutch, a second clutch, a third clutch, a first input shaft, a second input shaft, a third input shaft, an output shaft, a first gear set, The second gear set and the third gear set, the first motor is connected with the first input shaft, the second input shaft and the third input shaft respectively through the first clutch, the second clutch and the third clutch, the first input shaft, the second The input shaft and the third input shaft are connected to the output shaft through the first gear set, the second gear set and the third gear set respectively. The first gear set, the second gear set and the third gear set correspond to three speed ratios. Switching the first clutch, the second clutch and the third clutch can realize the three-speed shifting of the first motor, which can meet different driving force requirements. Improve the vehicle economy; the structure is simple and compact, the number of parts used is less, the energy transmission loss is less, and the system efficiency is improved.
Owner:BYD CO LTD
Routing structure of two-core parallel shielded electric wire
ActiveUS20200021000A1Increased transmission lossReduced characteristicsCable insulation constructionFlexible cablesStructural engineeringElectric wire
A routing structure of a two-core parallel shielded electric wire includes:two insulated electric wires that are arranged in parallel; anda shield layer that is attached around the two insulated electric wires and extends in a longitudinal direction of the two insulated electric wires.In the routing structure, the two-core parallel shielded electric wire is rerouted by bent twisting the two-core parallel shielded electric wire in a short axis direction at a route change point along a long axis direction of the two-core parallel shielded electric wire, and the number of bent twisted points in the short axis direction is 1.43 or less per meter.
Owner:YAZAKI CORP
Canister vacuum cleaner with shock-absorbing connection
InactiveCN103156549BIncrease the loss when the vibration propagates outwardIncrease lossSuction cleanersRubber materialMotor vibration
The invention discloses a horizontal-type dust collector with a damping connecting device. The horizontal-type dust collector with the damping connecting device comprises a bottom case, a front cover and a rear cover, wherein a dust collecting device and a motor unit are arranged in the bottom case, the front cover and the rear cover are connected above the bottom case, a motor housing bottom wall of the motor unit and the bottom case are fixedly connected through a bolt, a bottom wall bolt connecting part is formed at the connection position of the motor housing, a bottom case bolt connecting part is correspondingly formed on the bottom case, and a damping device with elasticity, a rubber spring, is arranged between the bottom wall bolt connecting part and the bottom case bolt connecting part. The rubber spring is made of rubber materials with good elasticity, the loss when the motor vibration spreads outward is increased, on the condition that a vibration source is unvarying, vibration spreading paths are cut off as much as possible, vibration path transmission losses are increased, outward spreading of vibration is lowered, and therefore vibration noises of the overall machine can be lowered, and the roles of reducing vibration, lowering damage of a machine body, and improving the vibration noises of the overall machine are played.
Owner:NANJING LG PANDA APPLIANCES
Vibration damping components, vehicle air conditioners and passenger cars and vibration damping methods based on electromagnetic technology
ActiveCN106494182BSimple structural designReduce hard contactAir-treating devicesVehicle heating/cooling devicesEngineeringRandom vibration
The invention provides a vibration reduction component. The vibration reduction component comprises a base plate, an electromagnetic base arranged on the base plate and a foot stall arranged on the electromagnetic base, wherein the electromagnetic base can produce a magnetic field, so as to provide the magnetic field force for the foot stall, and the foot stall can be suspended in the electromagnetic base. The vibration reduction component provided by the invention has the advantages that the foot stall is arranged in a suspending way by virtue of the electromagnetic base, rigid contact of the foot stall and the base plate is reduced, transmission of vibration of a compressor to a passenger car by virtue of the foot stall is inhibited, the influence of random vibration of the passenger car on the compressor is also reduced, the problems that the noise is produced as the vibration of the compressor is transmitted to the passenger car and the vibration of the compressor is intensified as the random vibration of the passenger car is transmitted to the vibration reduction component are effectively solved, the comfort level of a passenger when riding is improved, and the reliability of the vibration reduction component is improved, so that the compressor runs smoothly. The invention also provides a vehicle-mounted air conditioner, a passenger car and a vibration reduction method based on an electromagnetic technology.
Owner:GREE ELECTRIC APPLIANCES INC
A dual-mode air intake system for an automobile
ActiveCN106050488BIncreased transmission lossReduce transmission lossMachines/enginesAir intakes for fuelSemi activeDual mode
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD
Power driving system and vehicle
ActiveCN111114280ARealize three-speed transmissionImprove economyHybrid vehiclesGas pressure propulsion mountingGear wheelElectric machinery
The invention discloses a power driving system and a vehicle. The power driving system comprises a first motor, a first clutch, a second clutch, a third clutch, a first input shaft, a second input shaft, a third input shaft, an output shaft, a first gear set, a second gear set and a third gear set. The first motor is connected with the first input shaft, the second input shaft and the third inputshaft through the first clutch, the second clutch and the third clutch respectively, and the first input shaft, the second input shaft and the third input shaft are connected to the output shaft through the first gear set, the second gear set and the third gear set respectively. The first gear set, the second gear set and the third gear set correspond to three speed ratios. By switching the firstclutch, the second clutch and the third clutch, three-gear speed changing of the first motor can be achieved, different driving force requirements can be met, and the vehicle economy is improved. Thestructure is simple and compact, the number of used parts is small, the energy transmission loss is small, and the system efficiency is improved.
Owner:BYD CO LTD
A light-weight composite sound insulation board for ships and its manufacturing method
ActiveCN109808828BCompact structureReasonable structureLaminationLamination apparatusGlass fiberEngineering
The invention relates to a light-weight composite sound baffle for a ship and a manufacturing method. The light-weight composite sound baffle comprises a lower panel located at the lower part, whereina rock wool layer is arranged at the upper part of the lower panel reticular glass fiber cloth is arranged on the top surface of the rock wool layer; the light-weight composite sound baffle further comprises an upper panel located at the upper part; the upper panel is parallel to the lower panel; a glass wool layer is arranged on the bottom surface of the upper panel; reticular glass fiber clothis arranged on the bottom surface of the glass wool layer; the reticular glass fiber cloth of the rock wool layer and the reticular glass fiber cloth of the glass wool layer are arranged by keeping aninterval; an air layer is formed in the interval; side panels are welded on the two sides of the upper panel and the lower panel respectively; and a quadrilateral structure is defined by the upper panel, the lower panel and the two side panels. On a basis of a transmission and reflection mechanism in air sound wave propagation, impedance mismatch is achieved using a structural form with materialson the two sides having different densities and thicknesses; no connection is made in the middle of a structure; vibration transmission is reduced; and sound insulation of the structure is further improved.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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