F02B41/04 - CPC Classification Index

#1

20250092819

2025-03-20

Dual piston based gensets for vehicle electrification

#2

20200400066

2020-12-24

COMBUSTION ENGINE

#3

20200240325

2020-07-30

Expanded torque system of internal combustion engine

#4

20200132017

2020-04-30

Internal combustion engine

#5

20190032553

2019-01-31

Infinitely variable compression ratio mechanism of a reciprocating double-acting piston-type gas compressor

#6

20190017434

2019-01-17

Internal combustion engine

#7

20180194484

2018-07-12

Vertical lift by series hybrid-propulsion

#8

20180179963

2018-06-28

Four-stroke internal combustion engine including variable compression ratio and a vehicle

#9

20180080372

2018-03-22

Internal combustion engine

#10

20180051626

2018-02-22

VARIABLE GEOMETRY POWER TRANSFER FOR FLUID FLOW MACHINES

#11

20170284286

2017-10-05

INTERNAL COMBUSTION ENGINE AND METHOD TO BUILD IT

#12

20170276213

2017-09-28

In-line four cylinder engine

#13

20170167436

2017-06-15

Efficient thermal energy power device and work-doing method therefor

#14

20170167365

2017-06-15

High pressure energy storage thermal energy power machine and work-doing method therefor

#15

20170159560

2017-06-08

Hypocycloidal methods and designs for increasing efficiency in engines

#16

20170002733

2017-01-05

Combustion engine linkage systems

#17

20170002732

2017-01-05

Switching valve and internal combustion engine

#18

20160356211

2016-12-08

Methods for engine air-path reversion management

#19

20160281598

2016-09-29

MULTI-JOINT CRANK DRIVE OF AN INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING A MULTI-JOINT CRANK DRIVE

#20

20160222880

2016-08-04

System for a mechanical conversion of an internal combustion engine of 4 strokes into 8 strokes

#21

20160201717

2016-07-14

Double-link piston crank mechanism for internal combustion engine

#22

20160138467

2016-05-19

Bearing structure for multi-link-type piston crank mechanism for internal combustion engines

#23

20150330296

2015-11-19

System for a mechanical conversion of an internal combustion engine of 4 strokes into 8 strokes

#24

20150013648

2015-01-15

Variable geometry power transfer for fluid flow machines

#25

20140366847

2014-12-18

Linear actuation for continuously variable-stroke cycle engine

#26

20140360292

2014-12-11

Reciprocating piston mechanism

#27

20140261288

2014-09-18

Energy recovery from compressed gas

#28

20140251256

2014-09-11

Double-reed exhaust valve engine

#29

20140182566

2014-07-03

Method for operating a reciprocating piston internal combustion engine with internal exhaust gas energy recuperation and reciprocating piston internal combustion engine

#30

20140158069

2014-06-12

Six-stroke engine system with blowdown turbocharger

#31

20140096740

2014-04-10

Modified crankshaft piston interface for optimized cylinder pressure and torque output

#32

20140053798

2014-02-27

Bolted joint inner thread coating and methods of manufacturing

#33

20130312703

2013-11-28

Piston-train guide apparatus and method

#34

20130263816

2013-10-10

Multi-link internal combustion engine

#35

20130263798

2013-10-10

Methods and systems for adaptively cooling combustion chambers in engines

#36

20130174803

2013-07-11

Mechanical breather system for a four-stroke engine

#37

20130125855

2013-05-23

Dwell cycle crank with rollers

#38

20130118441

2013-05-16

Intake system for an opposed-piston engine

#39

20130042828

2013-02-21

HIGH SPEED ENGINE

#40

20130014713

2013-01-17

Differential-stroke internal combustion engine

#41

20120285412

2012-11-15

In-line internal combustion engine having a multi-joint crank drive and a single balance shaft for damping second-order inertia forces

#42

20120279218

2012-11-08

MILLER CYCLE ENGINE

#43

20120272758

2012-11-01

Double-Acting Scotch Yoke assembly for X-engines

#44

20120180752

2012-07-19

Crank drive

#45

20120160223

2012-06-28

Internal combustion engine with separate combustion chamber and a method to achieve modified and controlled autoignition in said chamber

#46

20120160216

2012-06-28

Variable displacement engine

#47

20120067325

2012-03-22

METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE IN ACCORDANCE WITH SAID METHOD

#48

20120037100

2012-02-16

Methods and systems for adaptively cooling combustion chambers in engines

#49

20120031383

2012-02-09

INTERNAL COMBUSTION ENGINE

#50

20110277732

2011-11-17

Engine structure having conjugate cam assembly

#51

20110251743

2011-10-13

Mackay cold-expansion engine system

#52

20110226199

2011-09-22

RADIAL INTERNAL COMBUSTION ENGINE WITH DIFFERENT STROKE VOLUMES

#53

20110220041

2011-09-15

Accelerated compression ignition engine for HCCI

#54

20110036334

2011-02-17

Reciprocating piston mechanism and a method of increasing internal EGR in an internal combustion engine

#55

20100175638

2010-07-15

Water Combustion Technology - The Haase Cycle

#56

20100012095

2010-01-21

Internal combustion engine with improved fuel efficiency and/or power output

#57

20100012094

2010-01-21

Engine with variable length connecting rod

#58

20090288643

2009-11-26

Link type variable stroke engine

#59

20090288642

2009-11-26

Link type variable stroke engine

#60

20090250046

2009-10-08

SPLIT FOUR STROKE ENGINE

#61

20090101004

2009-04-23

Two part piston for an internal combustion engine

#62

20090095262

2009-04-16

Variable stroke engine

#63

20080087257

2008-04-17

Internal combustion engine with shared holding tank in cylinder head for elevated expansion ratio

#64

20080035105

2008-02-14

Internal combustion engine with single-port holding tank for elevated expansion ratio

#65

20070251472

2007-11-01

Engine and method for operating an engine

#66

20070246007

2007-10-25

Engine valve assembly having holding tank with return valve and discharge valve in the valve assembly

#67

20070227471

2007-10-04

Ultra-expansion four-stroke internal combustion engine

#68

20070131184

2007-06-14

Single-ended barrel engine with double-ended, double roller pistons

#69

20070125326

2007-06-07

Stroke-variable engine

#70

20070107679

2007-05-17

Reciprocating cylinder engine

#71

20070044740

2007-03-01

Stroke-variable engine

#72

20070044739

2007-03-01

Machine with a reciprocating piston

#73

20060243072

2006-11-02

Motor with rotary connecting rod bolt

#74

20060168957

2006-08-03

Split four stroke engine

#75

20060137632

2006-06-29

Internal combustion engine

#76

20050229895

2005-10-20

MOTOR WITH ROTARY CONNECTING ROD BOLT

#77

20050145207

2005-07-07

Single-ended barrel engine with double-ended, double roller pistons

#78

20050139187

2005-06-30

Motor with rotary connecting rod bolt

#79

20050139178

2005-06-30

Split four stroke engine

#80

20050087168

2005-04-28

Two-step combustion system

#81

20050066930

2005-03-31

V-twin configuration having rotary mechanical field assembly

#82

20050039711

2005-02-24

Internal combustion engine and working cycle