Patents-Review.com
ClassID:

136603 ⎘

F01C1/104 - CPC Classification

Classification description:

Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member one member having simultaneously a rotational movement about its own axis and an orbital movement

Sub-classes:
Recent Application in this class:
#1
20250116223
2025-04-10

ROTARY PISTON MACHINE

 #2
20240280099
2024-08-22

Sealing In Helical Trochoidal Rotary Machines

 #3
20230098259
2023-03-30

Sealing in helical trochoidal rotary machines

 #4
20220136392
2022-05-05

Cartiodal rotary machine with two-lobe rotor

 #5
20210199011
2021-07-01

Helical trochoidal rotary machines

 #6
20210189880
2021-06-24

Helical trochoidal rotary machines with offset

 #7
20210095566
2021-04-01

Internal gear pump

 #8
20210025392
2021-01-28

Sealing in helical trochoidal rotary machines

 #9
20200270993
2020-08-27

Rotary fluid pressure device with drive-in-drive valve arrangement

 #10
20200200174
2020-06-25

Sealing in helical trochoidal rotary machines

 #11
20200200008
2020-06-25

Helical trochoidal rotary machines with offset

 #12
20190154038
2019-05-23

Pressure changing device

 #13
20170362938
2017-12-21

Rotary fluid pressure device with drive-in-drive valve arrangement

 #14
20170356446
2017-12-14

Fluid pressure changing device

 #15
20170101927
2017-04-13

Internal combustion engine

 #16
20170074100
2017-03-16

Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps

 #17
20160348678
2016-12-01

Fluid pressure changing device

 #18
20160201463
2016-07-14

FLUID DEVICE OUTPUT SHAFT WITH COATING

 #19
20160194960
2016-07-07

Rotary motor with geared transmission for use of compressible media drive

 #20
20160194958
2016-07-07

Rotary expansible chamber devices and systems incorporating the same

 #21
20160138590
2016-05-19

Gerotor apparatus having outer gerotor with strengthening members

 #22
20150315913
2015-11-05

Rotary machine

 #23
20150152732
2015-06-04

GEROTOR APPARATUS FOR A QUASI-ISOTHERMAL BRAYTON CYCLE ENGINE

 #24
20140308147
2014-10-16

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

 #25
20140299094
2014-10-09

Rotary engine and rotary unit thereof

 #26
20140209056
2014-07-31

Air-cooled rotary engine

 #27
20140076270
2014-03-20

Rotary machine

 #28
20130034462
2013-02-07

Fluid energy transfer device

 #29
20110200476
2011-08-18

Sealing system for gerotor apparatus

 #30
20100266435
2010-10-21

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

 #31
20100247360
2010-09-30

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

 #32
20100242897
2010-09-30

Inverse displacement asymmetric rotary (IDAR) engine

 #33
20100213786
2010-08-26

Electric machine having rotor and stator configurations

 #34
20100003152
2010-01-07

Gerotor apparatus for a quasi-isothermal brayton cycle engine

 #35
20090324432
2009-12-31

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

 #36
20090241536
2009-10-01

Stirling Engine Having a Rotary Power Piston in a Chamber that Rotates with the Output Drive

 #37
20070237665
2007-10-11

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

 #38
20060279155
2006-12-14

Electric machine having a high-torque switched reluctance motor

 #39
20060239849
2006-10-26

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

 #40
20060193739
2006-08-31

Retro mechanical post mechanical and bi-mechanical traction engines

 #41
20060140808
2006-06-29

Rotor position control for rotary machines

 #42
20060065233
2006-03-30

Rotary engine

 #43
20050145213
2005-07-07

Electric power generator assembly

 #44
16507997
2020-08-11

Expandable pistons

 #45
14261585
2016-08-23

Drive system having a variable output pump