ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
F01M0011120000 concerning lubricant level 1
F01M0013000000 Crankcase ventilating or breathing 1
F01M0013020000 by means of additional source of positive or negative pressure 1
F01M0013040000 having means for purifying air before leaving crankcase, e.g. removing oil 1
F01M0013060000 specially adapted for submersible engines, e.g. of armoured vehicles 1
F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K0013000000; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M0035000000; protecting against, or damping, noise in general G10K0011160000) 1
F01N0001000000 Silencing apparatus characterised by method of silencing 1
F01N0001020000 by using resonance 1
F01N0001040000 having sound-absorbing materials in resonance chambers 1
F01N0001060000 by using interference effect 1
F01N0001080000 by reducing exhaust energy by throttling or whirling 1
F01N0001100000 in combination with sound-absorbing materials 1
F01N0001120000 using spirally- or helically-shaped channels (F01N0001100000 takes precedence;cyclones B04C) 1
F01N0001140000 by adding air to exhaust gases 1
F01N0001160000 by using movable parts 1