ClassID:

136683

F01C19/025 - CPC Classification

Classification description:

Sealing arrangements in rotary-piston machines or engines; Radially-movable sealings for working fluids Radial sealing elements specially adapted for intermeshing engagement type machines or engines, e.g. gear machines or engines

Recent Application in this class:
#1
20250198363
2025-06-19

Combined Sealing Piece, Volumetric Machine and Wide Fuel Engine

#2
20200400022
2020-12-24

Rotary piston engine and method for operating a rotary piston engine

#3
20200284262
2020-09-10

Progressing cavity device with cutter disks

#4
20200018167
2020-01-16

Sealing sleeve for geared shaft of gearmotor assembly

#5
20190136692
2019-05-09

Internal bearing plate for gearmotor assembly

#6
20190078438
2019-03-14

Positive displacement rotary devices

#7
20180258818
2018-09-13

EXHAUST-GAS ENERGY RECOVERY SYSTEM AND METHOD FOR EXHAUST-GAS ENERGY RECOVERY

#8
20180119697
2018-05-03

Progressing cavity device with cutter disks

#9
20170321698
2017-11-09

System and Method for Improved Performance of Gerotor Compressors and Expanders

#10
20170226856
2017-08-10

Positive displacement rotary devices with uniform tolerances

#11
20170184016
2017-06-29

Rotary engine having combustion controllers

#12
20170114883
2017-04-27

Mechanical seal for gearmotor assembly having threaded bearing retainer

#13
20170114641
2017-04-27

Internal bearing plate for gearmotor assembly

#14
20170114640
2017-04-27

Sealing sleeve for geared shaft of gearmotor assembly

#15
20160108733
2016-04-21

Silent gear pump or motor suppressing troubles of trapping fluid

#16
20150267702
2015-09-24

Gerotor with reduced leakage

#17
20130209306
2013-08-15

Rotary positive displacement machine

#18
20120087820
2012-04-12

ROTARY DEVICE

#19
20090050080
2009-02-26

HYDROGEN PEROXIDE-FUELED ROTARY EXPANSION ENGINE

#20
20080298992
2008-12-04

Refrigeration system including a scroll expander

#21
20080149066
2008-06-26

Aspiration plate for planetary rotary internal combustion engine

#22
20070089701
2007-04-26

Rotary piston machine with an oval rotary piston

#23
20060191510
2006-08-31

Planetary rotary internal combustion engine

#24
20060032475
2006-02-16

Rotary piston machine with an oval rotary piston guided in an oval chamber

#25
20050235947
2005-10-27

Planetary rotary internal combustion engine

#26
20050051129
2005-03-10

Planetary piston rotary engine