F
SECTION F — MECHANICAL ENGINEERING
;
LIGHTING
;
HEATING
;
WEAPONS
;
BLASTING
ENGINEERING IN GENERAL
F15
FLUID-PRESSURE ACTUATORS
;
HYDRAULICS OR PNEUMATICS IN GENERAL
F15C
FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
(transducers
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Hierarchy...
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F15B 5/00
; fluid dynamics in general
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Hierarchy...
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F15D
; computers comprising fluid elements
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Hierarchy...
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G06D
,
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Hierarchy...
Expanded...
G06G
)
F15C 1/00
Circuit elements having no moving parts
F15C 1/02
·
Details
F15C 1/04
· ·
Means for controlling fluid streams to fluid devices, e.g. by electric signals
F15C 1/06
· ·
Constructional details
;
Selection of specified materials
F15C 1/08
·
Boundary-layer devices, e.g. wall-attachment amplifiers, oscillators
F15C 1/10
· ·
for digital operation, e.g. to form a logical flip-flop, OR-gate, NOR-gate
F15C 1/12
· · ·
Multiple arrangements thereof
(for static information stores
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G11C 25/00
)
F15C 1/14
·
Stream-interaction devices
;
Momentum-exchange devices, e.g. operating by exchange between two orthogonal fluid jets
F15C 1/16
·
Vortex devices, i.e. devices in which use is made of the pressure drop associated with vortex motion in a fluid
F15C 1/18
·
Turbulence devices, i.e. devices in which a controlling stream will cause a laminar flow to become turbulent
F15C 1/20
·
Direct-impact devices, i.e. devices in which two collinear opposing power streams are impacted
F15C 3/00
Circuit elements having moving parts
(valves, construction of valves
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Hierarchy...
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F16K
)
F15C 3/02
·
using spool valves
F15C 3/04
·
using diaphragms
F15C 3/06
·
using balls
F15C 3/08
·
using reeds
F15C 3/10
·
using nozzles or jet pipes
F15C 3/12
· ·
the nozzle or jet pipe being movable
F15C 3/14
· ·
the jet from the nozzle being intercepted by a flap
F15C 4/00
Circuit elements characterised by their special functions
F15C 5/00
Manufacture of fluid-circuit elements
;
Manufacture of assemblages of such elements