F02M35/1205 - CPC Classification Index

ClassID:

141026 ⎘

F02M35/1205 - CPC Classification

Classification description:

Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines; Intake silencers Sound modulation, transmission or amplification Flow throttling or guiding

Sub-classes:

F02M35/1211 » {by using inserts in the air intake flow path, e.g. baffles, throttles or orifices; Flow guides } 65
F02M35/1216 » {by using a plurality of holes, slits, protrusions, perforations, ribs or the like; Surface structures; Turbulence generators} 73
F02M35/1222 » {by using adjustable or movable elements, e.g. valves, membranes, bellows, expanding or shrinking elements} 49
F02M35/1227 » {by using multiple air intake flow paths, e.g. bypass, honeycomb or pipes opening into an expansion chamber} 12
F02M35/1233 » {by using expansion chambers in the air intake flow path} 20
F02M35/1238 » {by using secondary connections to the ambient, e.g. covered by a membrane or a porous member} 15

Recent Application in this class:

20210131341

2021-05-06

Method of operating a four stroke internal combustion engine system

20180340498

2018-11-29

Air cleaner of internal combustion engine

20180156167

2018-06-07

Construction machine

20180142652

2018-05-24

MUFFLING APPARATUS

20130019820

2013-01-24

Outboard engine unit

20100089355

2010-04-15

Air intake system for controlling sound emission

15697889

2018-11-13

Throttle body adapter for marine engine air intake