(0)F04B:0/5:
IPC6
SECTION F - MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS;BLASTING
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
F04B
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<<   >>   F04B001/00 - F04B001/34  

F 04

 POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS (portable fire extinguishers with manually-operated pumps A 62 C 11/00, with power-driven pumps A 62 C 25/00; charging or scavenging combustion engines by pumps F 02 B; engine fuel-injection pumps F 02 M; ion pumps H 01 J 41/12; electrodynamic pumps H 02 K 44/02)
 

Note
 

Combinations of positive-displacement and non-positive-displacement pumps are classified in subclass F 04 B as a general subclass for pumps, and in subclasses F 04 C, F 04 D in respect of matter specific to those subclasses.

F 04 B

 POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary-piston or oscillating-piston type F 04 C; non-positive-displacement pumps F 04 D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F 04 F; crankshafts, crossheads, connecting-rods F 16 C; flywheels F 16 F; gearings for interconverting rotary motion and reciprocating motion in general F 16 H; pistons, piston-rods, cylinders, in general F 16 J)
 

Notes

(1)

 In this subclass, the following term is used with the meaning indicated:
 

-

 "piston" also covers a plunger.

(2)

 Attention is drawn to the Notes preceding class F 01, especially as regards the definitions of "machines", "pumps", and "positive-displacement".

 

 

 

Pumps for liquids or for liquid and elastic fluids; Positive-displacement machines for liquids (having flexible working members F 04 B 43/00; pumps for raising fluids from great depths F 04 B 47/00)
 

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/ 00 Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (F 04 B 3/00 takes precedence; fluid-driven pumps F 04 B 9/08; control of reciprocating machines or pumps in general F 04 B 49/00)

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/ 02 • having two cylinders (in V-arrangement F 04 B 1/04)  

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/ 04 • having cylinders in star- or fan-arrangement [6]  

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/ 047 • • with an actuating or actuated element at the outer ends of the cylinders [6]  

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/ 053 • • with an actuating or actuated element at the inner ends of the cylinders [6]  

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/ 06 • • Control  

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/ 07 • • • by varying the relative eccentricity between two members, e.g. a cam and a drive shaft [6]  

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/ 08 • • • regulated by delivery pressure  

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/ 10 • • the cylinders being movable, e.g. rotary [6]  

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/ 107 • • • with an actuating or actuated element at the outer ends of the cylinders [6]  

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/ 113 • • • with an actuating or actuated element at the inner ends of the cylinders [6]  

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/ 12 • having cylinder axes coaxial with, or parallel or inclined to, main shaft axis  

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/ 14 • • having stationary cylinders  

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/ 16 • • • having two or more sets of cylinders or pistons  

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/ 18 • • • having self-acting distribution members, i.e. actuated by working fluid  

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/ 20 • • having rotary cylinder block  

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/ 22 • • • having two or more sets of cylinders or pistons  

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/ 24 • • • • inclined to main shaft axis  

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/ 26 • • Control  

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/ 28 • • • for machines or pumps with stationary cylinders  

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/ 29 • • • • by varying the relative positions of a swash plate and a cylinder block [6]  

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/ 30 • • • for machines or pumps with rotary cylinder block  

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/ 32 • • • • by varying the relative positions of a swash plate and a cylinder block [6]  

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/ 34 • Control not provided for in a single group of groups F 04 B 1/02 to F 04 B 1/32 [6]  
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