CPC Main Group
H01T 13/00 Sparking plugs
10 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- H01T 13/02 Details
- H01T 13/20 characterised by features of the electrodes or insulation
- H01T 13/40 structurally combined with other devices (combined or associated with fuel injectors F02M57/06; structurally combined with other parts of internal-combustion engines F02P13/00)
- H01T 13/46 having two or more spark gaps
- H01T 13/48 having means for rendering sparks visible
- H01T 13/50 having means for ionisation of gap (H01T13/52 takes precedence)
- H01T 13/52 characterised by a discharge along a surface
- H01T 13/54 having electrodes arranged in a partly-enclosed ignition chamber
- H01T 13/56 characterised by having component parts which are easily assembled or disassembled
- H01T 13/58 Testing (testing characteristics of the spark in internal-combustion engine ignition F02P17/12)