Patents-Review.com
ClassID:

138941 ⎘

F02B75/222 - CPC Classification

Classification description:

Other engines; Engines characterised by number of cylinders, e.g. single-cylinder engines; Multi-cylinder engines with cylinders in V, fan, or star arrangement with cylinders in star arrangement

Recent Application in this class:
#1
20260043344
2026-02-12

FREE PISTON ENGINE

 #2
20250320819
2025-10-16

A RADIAL CAM ENGINE

 #3
20230383692
2023-11-30

Internal Combustion Engine with Planetary Piston Gears

 #4
20230059790
2023-02-23

System for the reversible transformation of a reciprocating motion in a rotary motion

 #5
20220412231
2022-12-29

Radial engine-generator with overhead camshaft

 #6
20220282664
2022-09-08

Internal combustion engine with an epicyclic gear train and reciprocating pistons

 #7
20210317780
2021-10-14

ZHOU ENGINE AND POWER-CAM MECHANISM

 #8
20210293178
2021-09-23

Internal combustion engine with adaptable piston stroke

 #9
20200386151
2020-12-10

Internal combustion engine system and a method for an internal combustion engine system

 #10
20200095865
2020-03-26

System for the reversible transformation of a reciprocating motion in a rotary motion

 #11
20190353094
2019-11-21

V-type 4-stroke internal combustion engine with 20 cylinders

 #12
20190178152
2019-06-13

Internal combustion engine system and a method for an internal combustion system

 #13
20180066565
2018-03-08

Liquid cooled radial power plant having an external coolant manifold

 #14
20170328277
2017-11-16

Modular internal combustion engine with adaptable piston stroke

 #15
20160017795
2016-01-21

Radial engine piston-crankshaft interfaces

 #16
20150114352
2015-04-30

TORQUE MULTIPLIER ENGINES

 #17
20140137836
2014-05-22

Rotary piston internal combustion engine

 #18
20130312704
2013-11-28

Two-stroke uniflow turbo-compound internal combustion engine

 #19
20130233259
2013-09-12

Rotary cam radial steam engine

 #20
20130125855
2013-05-23

Dwell cycle crank with rollers

 #21
20120286521
2012-11-15

COMPACT, HIGH-EFFICIENCY INTEGRATED RESONANT POWER SYSTEMS

 #22
20120272821
2012-11-01

Thermal engine with an improved valve system

 #23
20120272758
2012-11-01

Double-Acting Scotch Yoke assembly for X-engines

 #24
20120240896
2012-09-27

Internal Combustion Engine with Rotating Cylinder Block

 #25
20120240892
2012-09-27

EFFICIENT OIL TREATMENT FOR RADIAL ENGINE

 #26
20120234297
2012-09-20

Torque multiplier engines

 #27
20120073298
2012-03-29

ROTARY EXPANSION ENGINE

 #28
20110226199
2011-09-22

RADIAL INTERNAL COMBUSTION ENGINE WITH DIFFERENT STROKE VOLUMES

 #29
20110146601
2011-06-23

Self-Aspirated Reciprocating Internal Combustion Engine

 #30
20100116578
2010-05-13

Hybrid turbo transmission

 #31
20100072757
2010-03-25

Portable energy generation systems

 #32
20090038565
2009-02-12

Continuous Otto piston elliptical engine

 #33
20090038561
2009-02-12

Motor system for diminution of carbon dioxide in the atmosphere

 #34
20080302328
2008-12-11

Reciprocating and rotary piston engine

 #35
20080283002
2008-11-20

Multi-Cylinder Two-Stroke Radial Engine

 #36
20080210026
2008-09-04

Kinetic energy generation device

 #37
20080184963
2008-08-07

Connecting rod free piston machine

 #38
20080163847
2008-07-10

Variable displacement mechanism for internal combustion engine

 #39
20080141966
2008-06-19

Efficient 5-phase motor with turbo and two compressible chambers

 #40
20080025657
2008-01-31

Connecting rod journals and crankshaft spider bearing in an engine

 #41
20070261681
2007-11-15

Engine shrouding with air to air heat exchanger

 #42
20070256664
2007-11-08

Valve controlled throttle mechanism in a heat regenerative engine

 #43
20070256415
2007-11-08

Clearance volume valves in a heat regenerative engine

 #44
20070240673
2007-10-18

Internal combustion engine

 #45
20070240650
2007-10-18

Engine reversing and timing control mechanism in a heat regenerative engine

 #46
20070227347
2007-10-04

Self-compensating cylinder system in a process cycle

 #47
20070079787
2007-04-12

Internal combustion engine

 #48
20070034176
2007-02-15

Internal combustion engine without connecting rod and a method of its construction

 #49
20060231048
2006-10-19

Revolving engine

 #50
20060137630
2006-06-29

Radial engine

 #51
20060130780
2006-06-22

Radial engine

 #52
20050217617
2005-10-06

Piston-cam engine

 #53
20050217616
2005-10-06

Engine

 #54
20050172918
2005-08-11

Mechanism including a piston-and-cylinder assembly

 #55
20050126519
2005-06-16

Multi-chamber internal combustion engine

 #56
20050051117
2005-03-10

Internal combustion engine

 #57
15952830
2020-03-17

Cam-driven radial rotary engine incorporating an HCCI apparatus