Engines with oppositely-moving reciprocating working pistons

Industry

CPC
F02B25/08

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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 F02B25/00Engines characterised by using fresh charge for scavenging cylinders

Current Industry

F02B25/08Engines with oppositely-moving reciprocating working pistons

Industries

Patents Grantslast 30 patents

Information Patent Grant
Opposed-piston engine
- Patent number 12,104,525
- Issue date Oct 1, 2024
- Mitsubishi Heavy Industries, Ltd.
- Keita Suzuki
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Exhaust catalyst light-off in an opposed-piston engine
- Patent number 12,055,111
- Issue date Aug 6, 2024
- Achates Power, Inc.
- Ahmad Ghazi
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
High-efficiency linear generator
- Patent number 12,000,331
- Issue date Jun 4, 2024
- Mainspring Energy, Inc.
- Adam Simpson
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Thermal management of aftertreatment devices of opposed-piston engi...
- Patent number 11,952,951
- Issue date Apr 9, 2024
- Achates Power, Inc.
- Fabien G. Redon
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Exhaust catalyst light-off in an opposed-piston engine
- Patent number 11,815,042
- Issue date Nov 14, 2023
- Achates Power, Inc.
- Ahmad Ghazi
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
High-efficiency linear generator
- Patent number 11,525,391
- Issue date Dec 13, 2022
- Mainspring Energy, Inc.
- Adam Simpson
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Optimal efficiency internal combustion engine
- Patent number 11,454,165
- Issue date Sep 27, 2022
- CREED ENGINES, LLC
- Glen Alton Collett
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Combustion pressure detection for a hybrid opposed piston engine
- Patent number 11,454,166
- Issue date Sep 27, 2022
- Pinnacle Engines, Inc.
- Clayton Naber
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Air handling in a heavy-duty opposed-piston engine
- Patent number 11,396,841
- Issue date Jul 26, 2022
- Achates Power, Inc.
- Gerhard Regner
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Control of an opposed-piston engine with a mass airflow sensor loca...
- Patent number 11,384,681
- Issue date Jul 12, 2022
- Achates Power, Inc.
- Govindarajan Kothandaraman
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Cylinder for opposed-piston engines
- Patent number 11,300,071
- Issue date Apr 12, 2022
- Achates Power, Inc.
- Kevin B. Fuqua
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Exhaust catalyst light-off in an opposed-piston engine
- Patent number 11,242,809
- Issue date Feb 8, 2022
- Achates Power, Inc.
- Ahmad Ghazi
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Hybrid engine
- Patent number 11,149,629
- Issue date Oct 19, 2021
- HTS LLC
- Carlos Marcelo Todeschini Hilgert
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Exhaust manifold constructions including thermal barrier coatings f...
- Patent number 11,098,634
- Issue date Aug 24, 2021
- Achates Power, Inc.
- John Koszewnik
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Intake chamber air diffusing feature in an opposed-piston engine
- Patent number 11,047,334
- Issue date Jun 29, 2021
- Achates Power, Inc.
- Robert G. Sperry
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Linear piston engine for operating external linear load
- Patent number 10,968,822
- Issue date Apr 6, 2021
- 470088 Ontario Limited
- Franz Kramer
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Air handling system constructions with externally-assisted boosting...
- Patent number 10,941,733
- Issue date Mar 9, 2021
- Achates Power, Inc.
- Fabien G. Redon
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
High-efficiency linear combustion engine
- Patent number 10,851,708
- Issue date Dec 1, 2020
- Mainspring Energy, Inc.
- Adam Simpson
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Two-stroke opposed piston internal combustion engine
- Patent number 10,690,051
- Issue date Jun 23, 2020
- Volvo Truck Corporation
- Lennart Andersson
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Two stroke, opposed piston engine with compression release brake ar...
- Patent number 10,683,782
- Issue date Jun 16, 2020
- Volvo Truck Corporation
- Stephen Geyer
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Uniflow engine with intake and/or exhaust valves
- Patent number 10,626,787
- Issue date Apr 21, 2020
- Volvo Truck Corporation
- Richard Kellogg Morton
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Engine braking an opposed piston that includes a mechanically drive...
- Patent number 10,605,158
- Issue date Mar 31, 2020
- Ford Global Technologies, LLC
- Eric Matthew Kurtz
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine braking for an opposed piston that includes a mechanically d...
- Patent number 10,605,159
- Issue date Mar 31, 2020
- Ford Global Technologies, LLC
- Eric Matthew Kurtz
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Mass airflow sensor monitoring using supercharger airflow character...
- Patent number 10,598,104
- Issue date Mar 24, 2020
- Achates Power, Inc.
- Vadiraj Kulkarni
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
On-board diagnostics for an opposed-piston engine equipped with a s...
- Patent number 10,450,985
- Issue date Oct 22, 2019
- Achates Power, Inc.
- Nishit Nagar
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Bilateral engine control system
- Patent number 10,428,730
- Issue date Oct 1, 2019
- Fairbanks Morse, LLC
- Raymond Gosz
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Compact ported cylinder construction for an opposed-piston engine
- Patent number 10,422,272
- Issue date Sep 24, 2019
- Achates Power, Inc.
- John M. Kessler
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Combustion chamber for an internal combustion engine and an interna...
- Patent number 10,415,456
- Issue date Sep 17, 2019
- Volvo Truck Corporation
- Richard S. Brandt
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Skewed combustion chamber for opposed-piston engines
- Patent number 10,330,006
- Issue date Jun 25, 2019
- Achates Power, Inc.
- Rishikesh Venugopal
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Open exhaust chamber constructions for opposed-piston engines
- Patent number 10,323,563
- Issue date Jun 18, 2019
- Achates Power, Inc.
- Rodrigo Zermeño Benitez
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

Information Patent Application
HIGH-EFFICIENCY LINEAR GENERATOR
- Publication number 20240287930
- Publication date Aug 29, 2024
- Mainspring Energy, Inc.
- Adam Simpson
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
OPPOSED-PISTON ENGINE
- Publication number 20240151177
- Publication date May 9, 2024
- Mitsubishi Heavy Industries, Ltd.
- Shintaro SHUTO
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
EXHUAST CATALYST LIGHT-OFF IN AN OPPOSED-PISTON ENGINE
- Publication number 20240060455
- Publication date Feb 22, 2024
- Achates Power, Inc.
- Ahmad GHAZI
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
OPPOSED-PISTON ENGINE
- Publication number 20230392544
- Publication date Dec 7, 2023
- Mitsubishi Heavy Industries, Ltd.
- Keita SUZUKI
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
HIGH-EFFICIENCY LINEAR GENERATOR
- Publication number 20230101969
- Publication date Mar 30, 2023
- Mainspring Energy, Inc.
- Adam Simpson
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
T-SCAVENGED OPPOSED PISTON ENGINE
- Publication number 20230044154
- Publication date Feb 9, 2023
- Pinnacle Engines, Inc.
- Clayton Naber
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Thermal Management Of Aftertreatment Devices Of Opposed-Piston Engi...
- Publication number 20220260028
- Publication date Aug 18, 2022
- Achates Power, Inc.
- Fabien G. REDON
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
EXHAUST CATALYST LIGHT-OFF IN AN OPPOSED-PISTON ENGINE
- Publication number 20220128012
- Publication date Apr 28, 2022
- Achates Power, Inc.
- Ahmad Ghazi
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
COMBUSTION PRESSURE DETECTION FOR A HYBRID OPPOSED PISTON ENGINE
- Publication number 20220010725
- Publication date Jan 13, 2022
- Pinnacle Engines, Inc.
- Clayton Naber
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Optimal Efficiency Internal Combustion Engine
- Publication number 20210239039
- Publication date Aug 5, 2021
- Glen Alton Collett
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
CONTROL OF AN OPPOSED-PISTON ENGINE WITH A MASS AIRFLOW SENSOR LOCA...
- Publication number 20210156298
- Publication date May 27, 2021
- Achates Power, Inc.
- GOVINDARAJAN KOTHANDARAMAN
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
HYBRID ENGINE
- Publication number 20210115846
- Publication date Apr 22, 2021
- HTS LLC
- Carlos Marcelo Todeschini Hilgert
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
HIGH-EFFICIENCY LINEAR COMBUSTION ENGINE
- Publication number 20210079838
- Publication date Mar 18, 2021
- Mainspring Energy, Inc.
- Adam Simpson
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
EXHAUST CATALYST LIGHT-OFF IN AN OPPOSED-PISTON ENGINE
- Publication number 20200347791
- Publication date Nov 5, 2020
- Achates Power, Inc.
- Ahmad GHAZI
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
FUEL LIMITER FOR A UNIFLOW-SCAVENGED, TWO-STROKE CYCLE, OPPOSED-PIS...
- Publication number 20200224595
- Publication date Jul 16, 2020
- Achates Power, Inc.
- NISHIT NAGAR
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
AIR HANDLING IN A HEAVY-DUTY OPPOSED-PISTON ENGINE
- Publication number 20200182133
- Publication date Jun 11, 2020
- Achates Power, Inc.
- GERHARD REGNER
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
EXHAUST MANIFOLD CONSTRUCTIONS INCLUDING THERMAL BARRIER COATINGS F...
- Publication number 20200173334
- Publication date Jun 4, 2020
- Achates Power, Inc.
- JOHN KOSZEWNIK
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
THERMAL MANAGEMENT OF AFTERTREATMENT DEVICES OF OPPOSED-PISTON ENGI...
- Publication number 20200173387
- Publication date Jun 4, 2020
- Achates Power, Inc.
- FABIEN G. RENDON
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
AIR HANDLING SYSTEM CONSTRUCTIONS WITH EXTERNALLY-ASSISTED BOOSTING...
- Publication number 20190264639
- Publication date Aug 29, 2019
- Achates Power, Inc.
- Fabien G. Redon
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
HIGH-EFFICIENCY LINEAR COMBUSTION ENGINE
- Publication number 20190178157
- Publication date Jun 13, 2019
- EtaGen, Inc.
- Adam Simpson
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
CONTROL OF AIRFLOW IN A UNIFLOW-SCAVENGED, TWO-STROKE CYCLE, OPPOSE...
- Publication number 20190120164
- Publication date Apr 25, 2019
- Achates Power, Inc.
- ARUNANDAN SHARMA
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
INTERNAL COMBUSTION ENGINE
- Publication number 20190100295
- Publication date Apr 4, 2019
- Joost Engines Ltd
- Oliver Jukes
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
BILATERAL ENGINE CONTROL SYSTEM
- Publication number 20190093552
- Publication date Mar 28, 2019
- Fairbanks Morse, LLC
- Raymond Gosz
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
EXHAUST MANAGEMENT STRATEGIES FOR OPPOSED-PISTON, TWO-STROKE ENGINES
- Publication number 20190078479
- Publication date Mar 14, 2019
- Achates Power, Inc.
- Christopher J. Kalebjian
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
AIR HANDLING IN A HEAVY-DUTY OPPOSED-PISTON ENGINE
- Publication number 20190003373
- Publication date Jan 3, 2019
- Achates Power, Inc.
- GERHARD REGNER
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
UNIFLOW ENGINE WITH INTAKE AND/OR EXHAUST VALVES
- Publication number 20180328263
- Publication date Nov 15, 2018
- VOLVO TRUCK CORPORATION
- Richard Kellogg Morton
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
AIR HANDLING SYSTEM CONSTRUCTIONS WITH EXTERNALLY-ASSISTED BOOSTING...
- Publication number 20180306144
- Publication date Oct 25, 2018
- Achates Power, Inc.
- FABIEN G. REDON
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
High-Efficiency Linear Combustion Engine
- Publication number 20180298814
- Publication date Oct 18, 2018
- EtaGen, Inc.
- Adam Simpson
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ON-BOARD DIAGNOSTICS FOR AN OPPOSED-PISTON ENGINE EQUIPPED WITH A S...
- Publication number 20180274472
- Publication date Sep 27, 2018
- Achates Power, Inc.
- Nishit Nagar
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
FUEL LIMITER FOR A UNIFLOW-SCAVENGED, TWO-STROKE CYCLE, OPPOSED-PIS...
- Publication number 20180245520
- Publication date Aug 30, 2018
- Achates Power, Inc.
- Nishit Nagar
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Engines with oppositely-moving reciprocating working pistons

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Opposed-piston engine

Exhaust catalyst light-off in an opposed-piston engine

High-efficiency linear generator

Thermal management of aftertreatment devices of opposed-piston engi...

Exhaust catalyst light-off in an opposed-piston engine

High-efficiency linear generator

Optimal efficiency internal combustion engine

Combustion pressure detection for a hybrid opposed piston engine

Air handling in a heavy-duty opposed-piston engine

Control of an opposed-piston engine with a mass airflow sensor loca...

Cylinder for opposed-piston engines

Exhaust catalyst light-off in an opposed-piston engine

Hybrid engine

Exhaust manifold constructions including thermal barrier coatings f...

Intake chamber air diffusing feature in an opposed-piston engine

Linear piston engine for operating external linear load

Air handling system constructions with externally-assisted boosting...

High-efficiency linear combustion engine

Two-stroke opposed piston internal combustion engine

Two stroke, opposed piston engine with compression release brake ar...

Uniflow engine with intake and/or exhaust valves

Engine braking an opposed piston that includes a mechanically drive...

Engine braking for an opposed piston that includes a mechanically d...

Mass airflow sensor monitoring using supercharger airflow character...

On-board diagnostics for an opposed-piston engine equipped with a s...

Bilateral engine control system

Compact ported cylinder construction for an opposed-piston engine

Combustion chamber for an internal combustion engine and an interna...

Skewed combustion chamber for opposed-piston engines

Open exhaust chamber constructions for opposed-piston engines

Patents Applicationslast 30 patents

HIGH-EFFICIENCY LINEAR GENERATOR

OPPOSED-PISTON ENGINE

EXHUAST CATALYST LIGHT-OFF IN AN OPPOSED-PISTON ENGINE

OPPOSED-PISTON ENGINE

HIGH-EFFICIENCY LINEAR GENERATOR

T-SCAVENGED OPPOSED PISTON ENGINE

Thermal Management Of Aftertreatment Devices Of Opposed-Piston Engi...

EXHAUST CATALYST LIGHT-OFF IN AN OPPOSED-PISTON ENGINE

COMBUSTION PRESSURE DETECTION FOR A HYBRID OPPOSED PISTON ENGINE

Optimal Efficiency Internal Combustion Engine

CONTROL OF AN OPPOSED-PISTON ENGINE WITH A MASS AIRFLOW SENSOR LOCA...

HYBRID ENGINE

HIGH-EFFICIENCY LINEAR COMBUSTION ENGINE

EXHAUST CATALYST LIGHT-OFF IN AN OPPOSED-PISTON ENGINE

FUEL LIMITER FOR A UNIFLOW-SCAVENGED, TWO-STROKE CYCLE, OPPOSED-PIS...

AIR HANDLING IN A HEAVY-DUTY OPPOSED-PISTON ENGINE

EXHAUST MANIFOLD CONSTRUCTIONS INCLUDING THERMAL BARRIER COATINGS F...

THERMAL MANAGEMENT OF AFTERTREATMENT DEVICES OF OPPOSED-PISTON ENGI...

AIR HANDLING SYSTEM CONSTRUCTIONS WITH EXTERNALLY-ASSISTED BOOSTING...

HIGH-EFFICIENCY LINEAR COMBUSTION ENGINE

CONTROL OF AIRFLOW IN A UNIFLOW-SCAVENGED, TWO-STROKE CYCLE, OPPOSE...

INTERNAL COMBUSTION ENGINE

BILATERAL ENGINE CONTROL SYSTEM

EXHAUST MANAGEMENT STRATEGIES FOR OPPOSED-PISTON, TWO-STROKE ENGINES

AIR HANDLING IN A HEAVY-DUTY OPPOSED-PISTON ENGINE

UNIFLOW ENGINE WITH INTAKE AND/OR EXHAUST VALVES

AIR HANDLING SYSTEM CONSTRUCTIONS WITH EXTERNALLY-ASSISTED BOOSTING...

High-Efficiency Linear Combustion Engine

ON-BOARD DIAGNOSTICS FOR AN OPPOSED-PISTON ENGINE EQUIPPED WITH A S...

FUEL LIMITER FOR A UNIFLOW-SCAVENGED, TWO-STROKE CYCLE, OPPOSED-PIS...