peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures > peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed

CPC:

Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures (the non-fuel substances being gaseous F02D21/00) > peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed

CPC subdivides this area 7x more granularly than IPC with 6 additional codes.

6 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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F02D 19/0602 +3 CPC CPC only CPC only
F02D 19/0623 CPC only CPC only
F02D 19/0626 +2 CPC CPC only CPC only
F02D 19/0639 +2 CPC CPC only CPC only
F02D 19/066 CPC only CPC only
F02D 19/0663 +6 CPC CPC only CPC only
F02D 19/08 simultaneously using pluralities of fuels (F02D19/12 takes precedence) +2 CPC IPC+CPC Available in IPC and CPC