ClassID:

143460

F04C2/3448 - 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 the movement defined in groups or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member with axially movable vanes

Recent Application in this class:
#1
20250369440
2025-12-04

ROTARY PUMP OR MOTOR WITH IMPROVED INTAKE, EXHAUST, VANE AND BEARINGLESS SLEEVE FEATURES

#2
20240369059
2024-11-07

ROTARY COMPRESSOR

#3
20240141893
2024-05-02

SLIDING-VANE PUMP

#4
20240003346
2024-01-04

Sliding-pocket variable-displacement pump with compensation chambers

#5
20230175504
2023-06-08

HIGH PRESSURE VARIABLE VANE PUMP WITH VANE PINS

#6
20230076038
2023-03-09

Rotary compressor

#7
20230050050
2023-02-16

Rotary compressor including a plurality of recessed portions for retaining lubricating oil

#8
20220170459
2022-06-02

Vane pump

#9
20210293238
2021-09-23

Reduced-noise rotary pump

#10
20210199113
2021-07-01

PUMP BODY ASSEMBLY, COMPRESSOR AND AIR CONDITIONER

#11
20210115919
2021-04-22

Automotive liquid pendulum vane pump

#12
20180372097
2018-12-27

Pump comprising a spring

#13
20180372094
2018-12-27

VARIABLE DISPLACEMENT PUMP WITH AXIAL DISPLACEMENT OF THE VANES

#14
20180347562
2018-12-06

Rotary apparatus with protective knife

#15
20180073364
2018-03-15

Prime mover assembly having fixed center member between rotating members

#16
20170328363
2017-11-16

Pump with control system including a control system for directing delivery of pressurized lubricant

#17
20170175741
2017-06-22

Vane pump device

#18
20170175740
2017-06-22

Vane pump device having different discharging pressures

#19
20170175739
2017-06-22

Vane pump device having two different discharge amounts

#20
20170175738
2017-06-22

Vane pump device having multiple discharge pressures

#21
20170175737
2017-06-22

Supplying pressurized fluid to the vane groove for a vane pump device

#22
20170138197
2017-05-18

Vane cell machine having a pressure piece which delimits two pressure chambers

#23
20170122315
2017-05-04

Vane oil pump

#24
20170122314
2017-05-04

Vane pump device and hydraulic apparatus

#25
20170089233
2017-03-30

Vane oil pump

#26
20170074263
2017-03-16

VEHICLE HYDRAULIC DEVICE

#27
20170067462
2017-03-09

Vane pump and vane pump manufacturing method

#28
20170016522
2017-01-19

Device for transmitting a rotation movement

#29
20170009768
2017-01-12

Vane pumps with vane wear detection

#30
20160377077
2016-12-29

Two rotor vane pump

#31
20160325623
2016-11-10

Driving force distributing device

#32
20160305428
2016-10-20

Pump comprising a spring

#33
20160305427
2016-10-20

Pump including a spring fastened to positioning elements

#34
20160252090
2016-09-01

VARIABLE DISPLACEMENT LUBRICANT PUMP

#35
20160252089
2016-09-01

Electric motor driven pump

#36
20160252080
2016-09-01

VARIABLE DISPLACEMENT PUMP

#37
20160230758
2016-08-11

Vane pump

#38
20160230757
2016-08-11

Vane cell machine

#39
20160215775
2016-07-28

Oil pump

#40
20160186752
2016-06-30

Variable displacement vane pump with integrated fail safe function

#41
20160186623
2016-06-30

Variable displacement vane pump with integrated fail safe function

#42
20160178052
2016-06-23

MINIMAL LINE PRESSURE DISTURBANCE PUMP SWITCHING VALVE

#43
20160177947
2016-06-23

VANE PUMP

#44
20160146068
2016-05-26

Camshaft phaser with position control valve

#45
20160146067
2016-05-26

Camshaft phaser with position control valve

#46
20160138398
2016-05-19

Hydraulic vane-type machine

#47
20160123195
2016-05-05

Camshaft phaser

#48
20160115832
2016-04-28

Variable displacement lubricant pump

#49
20160115792
2016-04-28

Hydrostatic positive displacement machine

#50
20160090984
2016-03-31

VANE PUMPS

#51
20160047280
2016-02-18

Lubricant vane pump

#52
20160017884
2016-01-21

Variable displacement vane pump having connection groove communicating with suction-side back pressure port thereof

#53
20160010516
2016-01-14

Valve timing control apparatus

#54
20160003241
2016-01-07

Vane pump

#55
20160003113
2016-01-07

Control Of Variable Displacement Vane Pump Used As Scavenge Pump

#56
20150377236
2015-12-31

Vane pump

#57
20150377066
2015-12-31

Lubrication of journal bearing during clockwise and counter-clockwise rotation

#58
20150354565
2015-12-10

Variable displacement lubricant pump for an internal combustion engine with a temperature control valve

#59
20150352638
2015-12-10

Method for producing a vane for a rotary vane pump, vane for a rotary vane pump and rotary vane pump

#60
20150345492
2015-12-03

VANE WITH AXIAL SEAL

#61
20150300352
2015-10-22

Pump with mechanical seal assembly

#62
20150300174
2015-10-22

Unitary pump and turbine energy exchanger

#63
20150267705
2015-09-24

PUMP ARRANGEMENT

#64
20150267700
2015-09-24

Variable displacement vane pump

#65
20150192128
2015-07-09

Compressor with rotating cam and sliding end vanes

#66
20110189045
2011-08-04

ROTARY VANE MACHINE

#67
20070212247
2007-09-13

Method of generation of surgeless flow of the working fluid and a device for its implementation

#68
16440753
2024-07-02

Pump having rotor member with axially sliding vanes and a one-way check valve