Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F02Combustion engines F02MSUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF

F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines

F02M35/02Air cleaners F02M35/0201Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof F02M35/0202Manufacturing or assembling; Materials for air cleaner housings F02M35/0203by using clamps, catches, locks or the like F02M35/0204for connecting or joining to other devices F02M35/0205Details F02M35/0207on the clean air side F02M35/0208with sensing means on both, the air feeding side and the clean air side F02M35/0209comprising flexible, resilient, movable or rotatable elements F02M35/021Arrangements of air flow meters in or on air cleaner housings F02M35/0212Multiple cleaners F02M35/0214arranged concentrically or coaxially F02M35/0215arranged in parallel F02M35/0216arranged in series F02M35/0217acting by electric discharge; Electrostatic precipitators therefor F02M35/0218acting by absorption or adsorption; trapping or removing vapours or liquids F02M35/022acting by gravity, by centrifugal, or by other inertial forces F02M35/0223by centrifugal forces F02M35/0226by gravity or by mass inertia F02M35/024using filters F02M35/02408Manufacturing filter elements F02M35/02416Fixing, mounting, supporting or arranging filter elements; Filter element cartridges F02M35/02425Support structures increasing the stability or stiffness of the filter element F02M35/02433Special alignment with respect to the air intake flow F02M35/02441Materials or structure of filter elements F02M35/0245Pleated, folded, corrugated filter elements F02M35/02458consisting of multiple layers F02M35/02466Meshes; Grids; Perforated plates F02M35/02475characterised by the shape of the filter element F02M35/02483Cylindrical, conical, oval, spherical or the like filter elements; wounded filter elements F02M35/02491Flat filter elements F02M35/026acting by guiding the air over or through an oil or other liquid bath F02M35/04specially arranged with respect to engine, to intake system or specially adapted to vehicle Mounting thereon; Combinations with other devices F02M35/042combined with other devices F02M35/044Special arrangements of cleaners in or with respect to the air intake system F02M35/046Inline cleaners F02M35/048Arranging or mounting on or with respect to engines or vehicle bodies F02M35/06combined or associated with engine's cooling blower or fan, or with flywheel F02M35/08with means for removing dust, particles or liquids from cleaners with means for indicating clogging with by-pass means; Regeneration of cleaners F02M35/082By-pass means F02M35/084Dust collection chambers or discharge sockets F02M35/086Dust removal by flushing, blasting, pulsating or aspirating flow, washing or the like; Mechanical dust removal F02M35/088Water, snow or ice proofing; Separation or drainage of water, snow or ice F02M35/09Clogging indicators; Diagnosis or testing of air cleaners F02M35/10Air intakes Induction systems F02M35/10006characterised by the position of elements of the air intake system in direction of the air intake flow F02M35/10013Means upstream of the air filter; Connection to the ambient air F02M35/10019Means upstream of the fuel injection system, carburettor or plenum chamber F02M35/10026Plenum chambers F02M35/10032specially shaped or arranged connecting duct between carburettor or air inlet duct and the plenum chamber; specially positioned carburettors or throttle bodies with respect to the plenum chamber F02M35/10039Intake ducts situated partly within or on the plenum chamber housing F02M35/10045Multiple plenum chambers; Plenum chambers having inner separation walls F02M35/10052special shapes or arrangements of plenum chambers; Constructional details F02M35/10059Swirl chamber upstream of the plenum chamber F02M35/10065Valves arranged in the plenum chamber F02M35/10072Intake runners F02M35/10078Connections of intake systems to the engine F02M35/10085having a connecting piece F02M35/10091characterised by details of intake ducts: shapes; connections; arrangements F02M35/10098Straight ducts F02M35/10104Substantially vertically arranged ducts F02M35/10111Substantially V-, C- or U-shaped ducts in direction of the flow path F02M35/10118with variable cross-sections of intake ducts along their length; Venturis; Diffusors F02M35/10124Ducts with special cross-sections F02M35/10131Ducts situated in more than one plane; Ducts of one plane crossing ducts of another plane F02M35/10137Flexible ducts F02M35/10144Connections of intake ducts to each other or to another device F02M35/1015characterised by the engine type F02M35/10157Supercharged engines F02M35/10163having air intakes specially adapted to selectively deliver naturally aspirated fluid or supercharged fluid F02M35/1017Small engines F02M35/10177Engines having multiple fuel injectors or carburettors per cylinder F02M35/10183Engines having intake ducts fed from a separate carburettor or injector, the idling system being considered as a separate carburettor F02M35/1019Two-stroke engines; Reverse-flow scavenged or cross scavenged engines F02M35/10196Carburetted engines F02M35/10203Rotary F02M35/10209Fluid connections to the air intake system; their arrangement of pipes, valves or the like F02M35/10216Fuel injectors; Fuel pipes or rails; Fuel pumps or pressure regulators F02M35/10222Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission F02M35/10229the intake system acting as a vacuum or overpressure source for auxiliary devices F02M35/10236Overpressure or vacuum relief means; Burst protection F02M35/10242Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts F02M35/10249Electrical or electronic devices fixed to the intake system; Electric wiring F02M35/10255Arrangements of valves; Multi-way valves F02M35/10262Flow guides, obstructions, deflectors or the like F02M35/10268Heating, cooling or thermal insulating means F02M35/10275Means to avoid a change in direction of incoming fluid F02M35/10281Means to remove, re-atomise or redistribute condensed fuel; Means to avoid fuel particles from separating from the mixture F02M35/10288Air intakes combined with another engine part F02M35/10295Damping means F02M35/10301Flexible, resilient, pivotally or movable parts; Membranes F02M35/10308Equalizing conduits F02M35/10314Materials for intake systems F02M35/10321Plastics; Composites; Rubbers F02M35/10327Metals; Alloys F02M35/10334Foams; Fabrics; Porous media; Laminates; Ceramics; Coatings F02M35/1034Manufacturing and assembling intake systems F02M35/10347Moulding, casting or the like F02M35/10354Joining multiple sections together F02M35/1036by welding, bonding or the like F02M35/10367Machining F02M35/10373Sensors for intake systems F02M35/1038for temperature or pressure F02M35/10386for flow rate F02M35/10393for characterising a multi-component mixture F02M35/104Intake manifolds F02M35/1042characterised by provisions to avoid mixture or air supply from one plenum chamber to two successively firing cylinders F02M35/1045characterised by the charge distribution between the cylinders/combustion chambers or its homogenisation F02M35/1047characterised by some cylinders being fed from one side of engine block and the other cylinders being fed from the other side of engine block F02M35/108with primary and secondary intake passages F02M35/1085the combustion chamber having multiple intake valves F02M35/112for engines with cylinders all in one line F02M35/116for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft F02M35/1165Boxer or pancake engines F02M35/12Intake silencers Sound modulation, transmission or amplification F02M35/1205Flow throttling or guiding F02M35/1211by using inserts in the air intake flow path F02M35/1216by using a plurality of holes, slits, protrusions, perforations, ribs or the like; Surface structures; Turbulence generators F02M35/1222by using adjustable or movable elements F02M35/1227by using multiple air intake flow paths F02M35/1233by using expansion chambers in the air intake flow path F02M35/1238by using secondary connections to the ambient F02M35/1244using interference; Masking or reflecting sound F02M35/125by using active elements F02M35/1255using resonance F02M35/1261Helmholtz resonators F02M35/1266comprising multiple chambers or compartments F02M35/1272using absorbing, damping, insulating or reflecting materials F02M35/1277Reinforcement of walls F02M35/1283Manufacturing or assembly; Connectors; Fixations F02M35/1288combined with or integrated into other devices ; Plurality of air intake silencers F02M35/1294Amplifying, modulating, tuning or transmitting sound F02M35/14Combined air cleaners and silencers F02M35/16characterised by use in vehicles F02M35/161Arrangement of the air intake system in the engine compartment F02M35/162Motorcycles; All-terrain vehicles F02M35/164Heavy duty vehicles F02M35/165Marine vessels; Ships; Boats F02M35/167having outboard engines; Jet-skis F02M35/168with means