F04C2/32 - CPC Classification Index

ClassID:

143445 ⎘

F04C2/32 - CPC Classification

Classification description:

Rotary-piston machines or pumps having the characteristics covered by two or more groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in groups and relative reciprocation between co-operating members

Sub-classes:

F04C2/321 » {with vanes hinged to the inner member and reciprocating with respect to the inner member} 11
F04C2/322 » {with vanes hinged to the outer member and reciprocating with respect to the outer member} 5
F04C2/324 » with vanes hinged to the inner member and reciprocating with respect to the outer member 10
F04C2/332 » with vanes hinged to the outer member and reciprocating with respect to the inner member 34

Recent Application in this class:

20200271112

2020-08-27

Positive displacement pump having an eccentric piston

20190323498

2019-10-24

Sliding member and sliding machine

20190301457

2019-10-03

Fixation detecting apparatus to prevent audible sound from emanating from oil pump during oil pump operation state determination

20190277282

2019-09-12

Vacuum pump sealing element

20160245286

2016-08-25

Vane pump

20160177949

2016-06-23

PUMP APPARATUS

20160131266

2016-05-12

Under vane valve piston structure

20150071805

2015-03-12

Rotor pump and rotary machinery comprising the same, the rotor pump including a pump body forming an accommodation cavity, a pump wheel rotating in the accommodation cavity and a sealing plate having an eccentric hole that is eccentric relative to a rotation axis of the pump wheel, where a shaft portion of the pump wheel is rotatably fitted in the eccentric hole

20050180859

2005-08-18

Four-in pump

#10

16113160

2019-11-26

Follower plate geometry