F28C1/00	7	Direct-contact trickle coolers, e.g. cooling towers (building construction E04H5/12; enclosed spaces cooled by trickle F25; components parts of trickle coolers F28F25/00; {indirect-contact cooling towers F28B1/06})	F28C1/00	F28C1/00		2346
F28C1/003	8	{comprising outlet ducts for exhaust gases}	F28C1/00	F28C1/00		97
F28C2001/006	8	{Systems comprising cooling towers, e.g. for recooling a cooling medium}	F28C1/00	F28C1/00		412
F28C1/02	8	with counter-current only	F28C1/02	F28C1/02		909
F28C1/04	8	with cross-current only	F28C1/04	F28C1/04		511
F28C1/06	8	with both counter-current and cross-current	F28C1/06	F28C1/06		93
F28C1/08	8	Arrangements for recovering heat from exhaust steam	F28C1/08	F28C1/08		68
F28C1/10	8	Arrangements for suppressing noise	F28C1/10	F28C1/10		308
F28C1/12	8	Arrangements for preventing clogging by frost	F28C1/12	F28C1/12		170
F28C1/14	8	comprising also a non-direct contact heat exchange	F28C1/14	F28C1/14		999
F28C2001/145	9	{with arrangements of adjacent wet and dry passages}	F28C1/14	F28C1/14		130
F28C1/16	8	Arrangements for preventing condensation, precipitation or mist formation, outside the cooler (F28C1/14 takes precedence)	F28C1/16	F28C1/16		587
F28C3/00	7	Other direct-contact heat-exchange apparatus	F28C3/00	F28C3/00		135
F28C3/005	8	{one heat-exchange medium being a solid (F28C3/10 takes precedence)}	F28C3/00	F28C3/00		189
F28C3/02	8	the heat-exchange media both being gases or vapours	F28C3/02	F28C3/02		173
F28C3/04	8	the heat-exchange media both being liquids	F28C3/04	F28C3/04		185
F28C3/06	8	the heat-exchange media being a liquid and a gas or vapour (temperators for cooling steam F22)	F28C3/06	F28C3/06		1176
F28C3/08	9	with change of state, e.g. absorption, evaporation, condensation (generating steam under pressure F22)	F28C3/08	F28C3/08		695
F28C3/10	8	one heat-exchange medium at least being a fluent solid, e.g. a particulate material	F28C3/10	F28C3/10		53
F28C3/12	9	the heat-exchange medium being a particulate material and a gas, vapour, or liquid	F28C3/12	F28C3/12		279
F28C3/14	10	the particulate material moving by gravity, e.g. down a tube	F28C3/14	F28C3/14		433
F28C3/16	10	the particulate material forming a bed, e.g. fluidised, on vibratory sieves	F28C3/16	F28C3/16		478
F28C3/18	10	the particulate material being contained in rotating drums	F28C3/18	F28C3/18		137
