with one working piston sliding inside another

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CPC
F02B75/30

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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F02Combustion engines F02BINTERNAL-COMBUSTION PISTON ENGINES COMBUSTION ENGINES IN GENERAL F02B75/00Other engines

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F02B75/30with one working piston sliding inside another

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Engine with gas exchange through piston rod
- Patent number 11,686,199
- Issue date Jun 27, 2023
- Aquarius Engines (A.M.) Ltd.
- Shaul Haim Yaakoby
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Engine with work stroke and gas exchange through piston rod
- Patent number 11,346,219
- Issue date May 31, 2022
- Aquarius Engines (A.M.) Ltd.
- Shaul Haim Yaakoby
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Two stroke engine with valves actuated by air pressure near bottom...
- Patent number 11,280,254
- Issue date Mar 22, 2022
- Cesar Mercier
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Wireless control of actuated valve in variable compression ratio pi...
- Patent number 11,125,151
- Issue date Sep 21, 2021
- King Abdullah University of Science and Technology
- Bengt Håkan Johansson
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine with work stroke and gas exchange through piston rod
- Patent number 11,008,864
- Issue date May 18, 2021
- Aquarius Engines (A.M.) Ltd.
- Shaul Haim Yaakoby
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine with work stroke and gas exchange through piston rod
- Patent number 10,968,742
- Issue date Apr 6, 2021
- Aquarius Engines (A.M.) Ltd.
- Shaul Haim Yaakoby
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine with compression and momentum stroke
- Patent number 10,428,655
- Issue date Oct 1, 2019
- Aquarius Engines (A.M.) Ltd.
- Shaul Haim Yaakoby
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Gapless piston ring for internal combustion engine
- Patent number 10,280,751
- Issue date May 7, 2019
- Aquarius Engines (A.M.) Ltd.
- Shaul Haim Yaakoby
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Two-stroke internal combustion engine with crankcase lubrication sy...
- Patent number 10,247,065
- Issue date Apr 2, 2019
- Cesar Mercier
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Timed gas exchange in engine using piston as exhaust valve
- Patent number 9,963,968
- Issue date May 8, 2018
- Aquarius Engines (A.M.) Ltd.
- Shaul Haim Yaakoby
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Engine system with two pistons
- Patent number 9,885,281
- Issue date Feb 6, 2018
- Ford Global Technologies, LLC
- Xiaogang Zhang
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Potential energy storage engine
- Patent number 9,695,746
- Issue date Jul 4, 2017
- Ray Fitzgerald Woods
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine
- Patent number 9,638,100
- Issue date May 2, 2017
- Mabrouk Telahigue
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Concentric cylinder engine
- Patent number 9,016,256
- Issue date Apr 28, 2015
- W. Daniel Hamby
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
High efficiency dual cycle internal combustion steam engine and method
- Patent number 8,661,817
- Issue date Mar 4, 2014
- Thermal Power Recovery LLC
- James V. Harmon
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Method and apparatus for achieving higher thermal efficiency in a s...
- Patent number 8,448,440
- Issue date May 28, 2013
- Thermal Power Recovery LLC
- Jerry A. Peoples
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
High efficiency multicycle internal combustion engine with waste he...
- Patent number 8,061,140
- Issue date Nov 22, 2011
- Thermal Power Recovery LLC
- James V. Harmon, Sr.
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Four stroke engine with a fuel saving sleeve
- Patent number 7,438,028
- Issue date Oct 21, 2008
- Edward Lawrence Warren
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine
- Patent number 7,337,759
- Issue date Mar 4, 2008
- Yung-ching Chen
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Supercharged two-stroke engine with upper piston extensions
- Patent number 7,255,071
- Issue date Aug 14, 2007
- Craig S. Beshore
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Internal combustion engine with variable displacement pistons
- Patent number 7,159,544
- Issue date Jan 9, 2007
- Andrew P. Studdert
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Reciprocating internal combustion engine
- Patent number 7,121,235
- Issue date Oct 17, 2006
- Walter Schmied
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Balanced five cycle engine with shortened axial extent
- Patent number 6,662,762
- Issue date Dec 16, 2003
- Leonhard Schuko
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Cyclically operated fluid displacement machine
- Patent number 6,626,650
- Issue date Sep 30, 2003
- Lotus Cars Limited
- Steven Kenchington
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Reciprocating internal combustion engine
- Patent number 6,598,567
- Issue date Jul 29, 2003
- Walter Schmied
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Torque increasing opposite direction engine
- Patent number 6,341,583
- Issue date Jan 29, 2002
- Kil Jung Ryu
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Internal combustion cylinder engine
- Patent number 6,032,622
- Issue date Mar 7, 2000
- Dix; Christina
- Walter Schmied
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine connecting rod and double piston assembly
- Patent number 5,865,092
- Issue date Feb 2, 1999
- Anthony D. Woudwyk
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Valving for dual compression/expansion engine and method of assembl...
- Patent number 5,647,307
- Issue date Jul 15, 1997
- Caterpillar Inc.
- John M. Clarke
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Dual compression and dual expansion internal combustion engine and...
- Patent number 5,542,382
- Issue date Aug 6, 1996
- Caterpillar Inc.
- John M. Clarke
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

Information Patent Application
A TWO STROKE ENGINE WITH VALVES ACTUATED BY AIR PRESSURE NEAR BOTTO...
- Publication number 20210293177
- Publication date Sep 23, 2021
- Cesar Mercier
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
WIRELESS CONTROL OF ACTUATED VALVE IN VARIABLE COMPRESSION RATIO PI...
- Publication number 20200408145
- Publication date Dec 31, 2020
- King Abdullah University of Science and Technology
- Bengt Håkan JOHANSSON
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
METHODS OF PREDICTING MORTALITY RISK BY DETERMINING TELOMERE LENGTH
- Publication number 20190218609
- Publication date Jul 18, 2019
- University of Utah Research Foundation
- Richard Cawthon
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Two-stroke internal combustion engine
- Publication number 20180128132
- Publication date May 10, 2018
- Cesar Mercier
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ENGINE SYSTEM WITH TWO PISTONS
- Publication number 20170356336
- Publication date Dec 14, 2017
- FORD GLOBAL TECHNOLOGIES, L.L.C.
- Xiaogang Zhang
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
FULL EXPANSION INTERNAL COMBUSTION ENGINE WITH CO-ANNULAR PISTONS
- Publication number 20140053810
- Publication date Feb 27, 2014
- Jack R. TAYLOR
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
CONCENTRIC CYLINDER ENGINE
- Publication number 20120291743
- Publication date Nov 22, 2012
- W. Daniel Hamby
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Method and Apparatus For Achieving Higher Thermal Efficiency In A S...
- Publication number 20110083434
- Publication date Apr 14, 2011
- THERMAL POWER RECOVERY LLC
- Jerry A. Peoples
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
High Efficiency Dual Cycle Internal Combustion Steam Engine and Method
- Publication number 20100300100
- Publication date Dec 2, 2010
- James V. Harmon, SR.
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
High Efficiency Multicycle Internal Combustion Engine With Waste He...
- Publication number 20090293480
- Publication date Dec 3, 2009
- James V. Harmon, SR.
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Four stroke engine with a fuel saving sleeve
- Publication number 20080245333
- Publication date Oct 9, 2008
- Edward Lawrence Warren
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Retro mechanical post mechanical and bi-mechanical traction engines
- Publication number 20060193739
- Publication date Aug 31, 2006
- Normand Beaudoin
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Supercharged two-stroke engine with upper piston extensions
- Publication number 20060048729
- Publication date Mar 9, 2006
- Craig S. Beshore
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Reciprocating internal combustion engine
- Publication number 20040159291
- Publication date Aug 19, 2004
- Walter Schmied
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Balanced five cycle engine with shortened axial extent
- Publication number 20030150410
- Publication date Aug 14, 2003
- Leonhard Schuko
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Reciprocating internal combustion engine
- Publication number 20020166521
- Publication date Nov 14, 2002
- Walter Schmied
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Mechanical discharge self-supercharging engine
- Publication number 20020159902
- Publication date Oct 31, 2002
- Normand Beaudoin
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Reciprocating internal combustion engine
- Publication number 20020124816
- Publication date Sep 12, 2002
- Walter Schmied
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Internal combustion cylinder engine
- Publication number 20010047775
- Publication date Dec 6, 2001
- Christina Dix
- Walter Schmied
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

with one working piston sliding inside another

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Engine with gas exchange through piston rod

Engine with work stroke and gas exchange through piston rod

Two stroke engine with valves actuated by air pressure near bottom...

Wireless control of actuated valve in variable compression ratio pi...

Engine with work stroke and gas exchange through piston rod

Engine with work stroke and gas exchange through piston rod

Engine with compression and momentum stroke

Gapless piston ring for internal combustion engine

Two-stroke internal combustion engine with crankcase lubrication sy...

Timed gas exchange in engine using piston as exhaust valve

Engine system with two pistons

Potential energy storage engine

Engine

Concentric cylinder engine

High efficiency dual cycle internal combustion steam engine and method

Method and apparatus for achieving higher thermal efficiency in a s...

High efficiency multicycle internal combustion engine with waste he...

Four stroke engine with a fuel saving sleeve

Engine

Supercharged two-stroke engine with upper piston extensions

Internal combustion engine with variable displacement pistons

Reciprocating internal combustion engine

Balanced five cycle engine with shortened axial extent

Cyclically operated fluid displacement machine

Reciprocating internal combustion engine

Torque increasing opposite direction engine

Internal combustion cylinder engine

Engine connecting rod and double piston assembly

Valving for dual compression/expansion engine and method of assembl...

Dual compression and dual expansion internal combustion engine and...

Patents Applicationslast 30 patents

A TWO STROKE ENGINE WITH VALVES ACTUATED BY AIR PRESSURE NEAR BOTTO...

WIRELESS CONTROL OF ACTUATED VALVE IN VARIABLE COMPRESSION RATIO PI...

METHODS OF PREDICTING MORTALITY RISK BY DETERMINING TELOMERE LENGTH

Two-stroke internal combustion engine

ENGINE SYSTEM WITH TWO PISTONS

FULL EXPANSION INTERNAL COMBUSTION ENGINE WITH CO-ANNULAR PISTONS

CONCENTRIC CYLINDER ENGINE

Method and Apparatus For Achieving Higher Thermal Efficiency In A S...

High Efficiency Dual Cycle Internal Combustion Steam Engine and Method

High Efficiency Multicycle Internal Combustion Engine With Waste He...

Four stroke engine with a fuel saving sleeve

Retro mechanical post mechanical and bi-mechanical traction engines

Supercharged two-stroke engine with upper piston extensions

Reciprocating internal combustion engine

Balanced five cycle engine with shortened axial extent

Reciprocating internal combustion engine

Mechanical discharge self-supercharging engine

Reciprocating internal combustion engine

Internal combustion cylinder engine