F04C18/54 - CPC Classification Index

ClassID:

143627 ⎘

F04C18/54 - 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 the axes being arranged otherwise than at an angle of 90 degrees

Sub-classes:

F04C18/56 » of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing 7

Recent Application in this class:

20210301825

2021-09-30

Rotary fluid flow device

20190249669

2019-08-15

Anti-locking mechanism of spherical compressor rotor

20170089342

2017-03-30

Spindle compressor using refrigerant cooling for housing and rotor

20160333879

2016-11-17

Anti-locking mechanism of spherical compressor rotor, anti-locking power mechanism of spherical compressor, and spherical compressor

20140159313

2014-06-12

Automatic compensation mechanism for hinge seal gap in spherical compressor

20120189479

2012-07-26

Spherical expansion compressor adapted to variable working conditions

20070207049

2007-09-06

Twin-plate rotary compressor