by varying pump speed, e.g. by changing pump-drive gear ratio
7
/
06
•
•
by varying blade pitch
7
/
08
•
•
by cutting in or out of pumps
7
/
10
•
•
by throttling amount of air flowing through liquid-to-air heat-exchangers
7
/
12
•
•
•
by thermostatic control
7
/
14
•
the coolant being liquid
7
/
16
•
•
by thermostatic control
9
/
00
Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F 01 P 1/00 to F 01 P 7/00(profiting from waste heat of combustion-engine cooling F 02 G 5/00)
9
/
02
•
Cooling by evaporation, e.g. by spraying water on to cylinders (evaporation and condensation of liquid coolant in closed cycles F 01 P 3/22)
9
/
04
•
by simultaneous or alternative use of direct air cooling and liquid cooling (F 01 P 9/02 takes precedence)
9
/
06
•
by use of refrigerating apparatus, e.g. of compressor or absorber type
11
/
00
Component parts, details, or accessories, not provided for in, or of interest apart from, groups F 01 P 1/00 to F 01 P 9/00
11
/
02
•
Liquid-coolant overflow, venting, or draining devices (automatic draining during freezing conditions F 01 P 11/20)
11
/
04
•
Arrangements of liquid pipes or hoses
11
/
06
•
Cleaning (in general B 08 B); Combating corrosion (in general C 23 F)
11
/
08
•
Arrangements of lubricant coolers (in lubrication apparatus
F 01 M)
11
/
10
•
Guiding or ducting cooling-air to or from liquid-to-air heat-exchangers
11
/
12
•
Filtering, cooling, or silencing cooling-air
11
/
14
•
Indicating devices; Other safety devices
11
/
16
•
•
concerning coolant temperature (F 01 P 11/20 takes precedence)
11
/
18
•
•
concerning coolant pressure, coolant flow, or liquid-coolant level
11
/
20
•
•
concerning atmospheric freezing conditions, e.g. automatically draining or heating during frosty weather
