F04C18/48 - CPC Classification Index

ClassID:

143624 ⎘

F04C18/48 - CPC Classification

Classification description:

Rotary-piston pumps specially adapted for elastic fluids Rotary-piston pumps with non-parallel axes of movement of co-operating members

Sub-classes:

F04C18/50 » the axes being arranged at an angle of 90 degrees 6
F04C18/54 » the axes being arranged otherwise than at an angle of 90 degrees 7

Recent Application in this class:

20240401594

Screw compressor, and refrigeration apparatus

20240280099

Sealing In Helical Trochoidal Rotary Machines

20230098259

Sealing in helical trochoidal rotary machines

20220252068

Hydrostatic pressure support for spherical pump rotor and spherical pump with same

20220178372

Rotary compressor with backflow suppresion mechanism for an introduction path

20210189880

Helical trochoidal rotary machines with offset

20210025392

Sealing in helical trochoidal rotary machines

20200032652

Rotational displacement apparatus

20190055944

Spherical compressor

20180119696

TANK CONTROL AND PUMP PROTECTION FOR AIR COMPRESSOR SYSTEM INCLUDING A CONDENSATE HARVESTER

20180045052

Rotational displacement apparatus

20170130583

Positive displacement rotary motion device including a pulse detonation device

20170045048

Multi-stage pump assembly having a pressure controlled valve for controlling recirculation of fluid from the pump stage outlet to the pump stage inlet

20140216000

Indexed positive displacement rotary motion device

20140099225

Multi-stage pump assembly having a pressure controlled valve for controlling recirculation of fluid from the pump stage outlet to the pump stage inlet

20100074786

Indexed positive displacement rotary motion device