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DIFF Subgroup
F02B 39/12

Drives characterised by use of couplings or clutches therein (using fluid slip couplings for varying gear ratio F02B39/08)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Drives characterised by use of couplings or clutches therein

CPC: Drives characterised by use of couplings or clutches therein (using fluid slip couplings for varying gear ratio F02B39/08)

Full Title

Full titles differ between systems:

IPC:

Component parts, details, or accessories relating to driven charging or scavenging pumps, not provided for in groups > Drives of pumps; Varying pump drive gear ratio > Drives characterised by use of couplings or clutches therein

CPC:

Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00 > Drives of pumps (exhaust drives or combined exhaust and other drives F02B37/00); Varying pump drive gear ratio > Drives characterised by use of couplings or clutches therein (using fluid slip couplings for varying gear ratio F02B39/08)

No child classifications to compare. This is a leaf node in both IPC and CPC.