NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02)

Introduced: September 1968

Description

Non-positive-displacement pumps that operate by converting mechanical energy into fluid motion through dynamic principles rather than trapping fixed fluid volumes. This subclass encompasses centrifugal pumps, axial-flow pumps, mixed-flow pumps, and jet pumps used for transporting liquids and elastic fluids (gases, vapors) in industrial, agricultural, and utility applications. The classification includes pump designs, components, control systems, and performance characteristics, excluding positive-displacement machines covered under F04C which operate by expanding and contracting sealed chambers.

Title

Titles differ between systems:

IPC: NON-POSITIVE-DISPLACEMENT PUMPS

CPC: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02)

Full Title

Full titles differ between systems:

IPC:

NON-POSITIVE-DISPLACEMENT PUMPS

CPC:

NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02)

IPC and CPC are identically structured here. All 18 subcodes exist in both systems.

14 shared codes have differing titles between IPC and CPC.

Child Classifications

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F04D 1/00 Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps (adapted for pumping specific fluids F04D7/00; priming or boosting F04D9/00) +2 CPC IPC+CPC Available in IPC and CPC
F04D 11/00 Other rotary non-positive-displacement pumps (pumping installations or systems F04D13/00) +1 CPC IPC+CPC Available in IPC and CPC
F04D 13/00 Pumping installations or systems (controlling F04D15/00) IPC+CPC Available in IPC and CPC
F04D 15/00 Control, e.g. regulation, of pumps, pumping installations or systems +8 CPC IPC+CPC Available in IPC and CPC
F04D 17/00 Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps (F04D21/00 takes precedence) IPC+CPC Available in IPC and CPC
F04D 19/00 Axial-flow pumps (F04D21/00 takes precedence; ) +2 CPC IPC+CPC Available in IPC and CPC
F04D 21/00 Pump involving supersonic speed of pumped fluids IPC+CPC Available in IPC and CPC
F04D 23/00 Other rotary non-positive-displacement pumps (pumping installations or systems F04D25/00) +3 CPC IPC+CPC Available in IPC and CPC
F04D 25/00 Pumping installations or systems (controlling F04D27/00) IPC+CPC Available in IPC and CPC
F04D 27/00 Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids +9 CPC IPC+CPC Available in IPC and CPC
F04D 29/00 Details, component parts, or accessories (machine elements in general F16) +3 CPC IPC+CPC Available in IPC and CPC
F04D 3/00 Axial-flow pumps (priming or boosting F04D9/00) +1 CPC IPC+CPC Available in IPC and CPC
F04D 31/00 Pumping liquids and elastic fluids at the same time IPC+CPC Available in IPC and CPC
F04D 33/00 Non-positive-displacement pumps with other than pure rotation, e.g. of oscillating type (F04D35/00 takes precedence; hand-held fans A45B) IPC+CPC Available in IPC and CPC
F04D 35/00 Pumps producing waves in liquids, i.e. wave-producers (for bath tubs A47K3/10) since 1974 IPC+CPC Available in IPC and CPC
F04D 5/00 Pumps with circumferential or transverse flow +2 CPC IPC+CPC Available in IPC and CPC
F04D 7/00 Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts (F04D11/005, F04D29/22 take precedence) IPC+CPC Available in IPC and CPC
F04D 9/00 Priming; Preventing vapour lock +3 CPC IPC+CPC Available in IPC and CPC