in which exhaust from only one cylinder or only a group of cylinders is directed to the intake of the engine

Industry

CPC
F02M26/43

This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F02Combustion engines F02MSUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF F02M26/00Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture

Current Industry

F02M26/43in which exhaust from only one cylinder or only a group of cylinders is directed to the intake of the engine

Industries

Patents Grantslast 30 patents

Information Patent Grant
Systems and method for controlling auto-ignition
- Patent number 11,952,935
- Issue date Apr 9, 2024
- Transportation IP Holdings, LLC
- Adam Edgar Klingbeil
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Methods and systems for multi-fuel engine
- Patent number 11,905,877
- Issue date Feb 20, 2024
- Transportation IP Holdings, LLC
- Adam Klingbeil
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Multivariable dynamic control system of a multi-fuel engine
- Patent number 11,719,152
- Issue date Aug 8, 2023
- Transportation IP Holdings, LLC
- Adam Edgar Klingbeil
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Methods and systems for reducing hydrocarbon emissions
- Patent number 11,703,017
- Issue date Jul 18, 2023
- Ford Global Technologies, LLC
- Xiaogang Zhang
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Exhaust gas recirculation control in an internal combustion engine
- Patent number 11,624,341
- Issue date Apr 11, 2023
- Tula Technology, Inc.
- Xin Yuan
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Systems and method for controlling auto-ignition
- Patent number 11,585,262
- Issue date Feb 21, 2023
- Transportation IP Holdings, LLC
- Daniel Yerace
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Method for operating an engine
- Patent number 11,578,684
- Issue date Feb 14, 2023
- Transportation IP Holdings, LLC
- Adam Edgar Klingbeil
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Systems and methods for controlling EGR flow during transient condi...
- Patent number 11,549,454
- Issue date Jan 10, 2023
- Cummins Inc.
- Carlos Alcides Lana
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Engine arrangements with EGR systems
- Patent number 11,536,226
- Issue date Dec 27, 2022
- Cummins Inc.
- Anthony Kyle Perfetto
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Internal combustion engine system operable in at least two operatin...
- Patent number 11,512,672
- Issue date Nov 29, 2022
- Volvo Truck Corporation
- Laurent Bauvir
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Exhaust gas recirculation flow control for reducing emissions with...
- Patent number 11,459,965
- Issue date Oct 4, 2022
- Tula Technology, Inc.
- Vijay Srinivasan
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Exhaust gas recirculation control in a dynamic skip fire engine
- Patent number 11,441,519
- Issue date Sep 13, 2022
- Tula Technology, Inc.
- Xin Yuan
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine exhaust manifold
- Patent number 11,306,687
- Issue date Apr 19, 2022
- Kubota Corporation
- Kentaro Nagai
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Systems and methods for increasing engine power output under global...
- Patent number 11,248,554
- Issue date Feb 15, 2022
- Ford Global Technologies, LLC
- Aakash Puntambekar
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Exhaust gas recirculation system for a vehicle engine
- Patent number 11,225,936
- Issue date Jan 18, 2022
- Ford Global Technologies, LLC
- Liangjun Hu
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Internal combustion engine and method for controlling such an inter...
- Patent number 11,215,131
- Issue date Jan 4, 2022
- Freevalve AB
- Anders Hoglund
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
System and method of controlling a turbocharged engine
- Patent number 11,193,435
- Issue date Dec 7, 2021
- Caterpillar Inc.
- Christopher Lusardi
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Internal combustion engine with cross-boosting turbochargers
- Patent number 11,156,191
- Issue date Oct 26, 2021
- Southwest Research Institute
- Shinhyuk Joo
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Systems and method for controlling auto-ignition
- Patent number 11,143,090
- Issue date Oct 12, 2021
- Transportation IP Holdings, LLC
- Daniel Yerace
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Water injection to increase hydrogen production by on-board reformi...
- Patent number 11,118,543
- Issue date Sep 14, 2021
- Saudi Arabian Oil Company
- Alexander Karl Voice
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
System and method for control of volumetric efficiency in a direct...
- Patent number 11,111,872
- Issue date Sep 7, 2021
- Cummins Inc.
- Anthony Kyle Perfetto
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Exhaust manifold
- Patent number 11,073,113
- Issue date Jul 27, 2021
- Hyundai Motor Company
- Seungwoo Hong
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Multi-cylinder engine
- Patent number 11,053,894
- Issue date Jul 6, 2021
- Mazda Motor Corporation
- Yoshiyuki Uehane
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Method and system for matching air flow in an exhaust gas recircula...
- Patent number 11,028,791
- Issue date Jun 8, 2021
- Transportation IP Holdings, LLC
- James Henry Yager
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Systems and methods for controlling EGR flow during transient condi...
- Patent number 11,028,792
- Issue date Jun 8, 2021
- Cummins Inc.
- Carlos Alcides Lana
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Rotary axial valve
- Patent number 11,015,517
- Issue date May 25, 2021
- GARRETT TRANSOPORTATION I INC
- Miroslav Zatko
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Exhaust gas recirculation and control with twin scroll turbines
- Patent number 11,015,553
- Issue date May 25, 2021
- Cummins Inc.
- Sudhanshu Talwar
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine arrangements with EGR systems
- Patent number 11,008,981
- Issue date May 18, 2021
- Cummins Inc.
- Anthony Kyle Perfetto
- 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
Systems and methods for EGR valve diagnostics
- Patent number 10,914,251
- Issue date Feb 9, 2021
- Ford Global Technologies, LLC
- Aed M. Dudar
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

Information Patent Application
METHODS AND SYSTEMS FOR REDUCING HYDROCARBON EMISSIONS
- Publication number 20230050865
- Publication date Feb 16, 2023
- FORD GLOBAL TECHNOLOGIES, L.L.C.
- Xiaogang Zhang
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Applied-Ignition Internal Combustion Engine and Method for Operatin...
- Publication number 20220120206
- Publication date Apr 21, 2022
- Bayerische Motoren Werke Aktiengesellschaft
- Roman MESSING
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
METHOD FOR OPERATING AN ENGINE
- Publication number 20220034284
- Publication date Feb 3, 2022
- Transportation IP Holdings, LLC
- Adam Edgar Klingbeil
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
SYSTEM AND METHOD OF CONTROLLING A TURBOCHARGED ENGINE
- Publication number 20210355885
- Publication date Nov 18, 2021
- Caterpillar Inc.
- Christopher Lusardi
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ENGINE UNIT AND HYBRID VEHICLE INCLUDING ENGINE UNIT
- Publication number 20210316715
- Publication date Oct 14, 2021
- Toyota Jidosha Kabushiki Kaisha
- Yuki Nose
- B60 - VEHICLES IN GENERAL
Information Patent Application
SYSTEMS AND METHODS FOR CONTROLLING EGR FLOW DURING TRANSIENT CONDI...
- Publication number 20210262404
- Publication date Aug 26, 2021
- CUMMINGS INC.
- Carlos Alcides Lana
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ENGINE ARRANGEMENTS WITH EGR SYSTEMS
- Publication number 20210231083
- Publication date Jul 29, 2021
- Cummins Inc.
- Anthony Kyle Perfetto
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ENGINE EXHAUST MANIFOLD
- Publication number 20210199074
- Publication date Jul 1, 2021
- KUBOTA CORPORATION
- Kentaro NAGAI
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
EXHAUST GAS RECIRCULATION CONTROL IN A DYNAMIC SKIP FIRE ENGINE
- Publication number 20210180544
- Publication date Jun 17, 2021
- TULA TECHNOLOGY, INC.
- Xin YUAN
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Internal Combustion Engine with Cross-Boosting Turbochargers
- Publication number 20210156342
- Publication date May 27, 2021
- SOUTHWEST RESEARCH INSTITUTE
- Shinhyuk Joo
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
METHODS AND SYSTEMS FOR ESTIMATING A FLOW OF GASES IN A SCAVENGE EX...
- Publication number 20200386141
- Publication date Dec 10, 2020
- FORD GLOBAL TECHNOLOGIES, L.L.C.
- Mohannad Hakeem
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ENGINE WITH VALVE ASSEMBLY FOR SELECTABLE EXHAUST GAS BYPASS
- Publication number 20200325856
- Publication date Oct 15, 2020
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Jianwen Li
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
WATER INJECTION TO INCREASE HYDROGEN PRODUCTION BY ON-BOARD REFORMI...
- Publication number 20200325861
- Publication date Oct 15, 2020
- Saudi Arabian Oil Company
- Alexander Karl VOICE
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
EXHAUST MANIFOLD
- Publication number 20200300200
- Publication date Sep 24, 2020
- Hyundai Motor Company
- Seungwoo Hong
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
METHOD AND APPARATUS FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE
- Publication number 20200291906
- Publication date Sep 17, 2020
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Michael A. Smith
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ROTARY AXIAL VALVE
- Publication number 20200240323
- Publication date Jul 30, 2020
- Garrett Transportation I Inc.
- Miroslav Zatko
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Internal Combustion Engine Having Catalyzed Heat Exchanger for Stea...
- Publication number 20200217278
- Publication date Jul 9, 2020
- SOUTHWEST RESEARCH INSTITUTE
- Cary A. Henry
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Intake Manifold
- Publication number 20200182203
- Publication date Jun 11, 2020
- Hyundai Motor Company
- Seungwoo Hong
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
SPARK IGNITED ENGINE LOAD EXTENSION WITH LOW PRESSURE EXHAUST GAS R...
- Publication number 20200158051
- Publication date May 21, 2020
- Tyler Tutton
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING SUCH AN INTER...
- Publication number 20200132003
- Publication date Apr 30, 2020
- FREEVALVE AB
- Anders HÖGLUND
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
SYSTEM AND METHOD FOR CONTROL OF VOLUMETRIC EFFICIENCY IN A DIRECT...
- Publication number 20200072154
- Publication date Mar 5, 2020
- Cummins Inc.
- Anthony Kyle Perfetto
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
WATER INJECTION TO INCREASE HYDROGEN PRODUCTION BY ON-BOARD REFORMI...
- Publication number 20190323458
- Publication date Oct 24, 2019
- Saudi Arabian Oil Company
- Alexander Karl VOICE
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Valve System And Assembly Including The Same
- Publication number 20190309692
- Publication date Oct 10, 2019
- BorgWarner Inc.
- David B. Roth
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
A METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE
- Publication number 20190309693
- Publication date Oct 10, 2019
- VOLVO TRUCK CORPORATION
- Mikael FORSBERG
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
SYSTEMS AND METHODS FOR CONTROLLING EGR FLOW DURING TRANSIENT CONDI...
- Publication number 20190249613
- Publication date Aug 15, 2019
- Cummins Inc.
- Carlos Alcides Lana
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
METHOD AND SYSTEMS FOR EXHAUST GAS CONTROL
- Publication number 20190234352
- Publication date Aug 1, 2019
- GE Global Sourcing LLC
- Dipankar Deb
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
MULTI-CYLINDER ENGINE
- Publication number 20190226428
- Publication date Jul 25, 2019
- MAZDA MOTOR CORPORATION
- Yoshiyuki Uehane
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Internal Combustion Engine Having Dedicated EGR Cylinder(s) and Sta...
- Publication number 20190219006
- Publication date Jul 18, 2019
- Southwest Research Institute
- Raphael Gukelberger
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
SYSTEMS AND METHODS FOR EGR VALVE DIAGNOSTICS
- Publication number 20190195153
- Publication date Jun 27, 2019
- FORD GLOBAL TECHNOLOGIES, L.L.C.
- Aed M. Dudar
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
EXHAUST GAS RECIRCULATION AND CONTROL WITH TWIN SCROLL TURBINES
- Publication number 20190145360
- Publication date May 16, 2019
- Cummins Inc.
- Sudhanshu Talwar
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

in which exhaust from only one cylinder or only a group of cylinders is directed to the intake of the engine

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Systems and method for controlling auto-ignition

Methods and systems for multi-fuel engine

Multivariable dynamic control system of a multi-fuel engine

Methods and systems for reducing hydrocarbon emissions

Exhaust gas recirculation control in an internal combustion engine

Systems and method for controlling auto-ignition

Method for operating an engine

Systems and methods for controlling EGR flow during transient condi...

Engine arrangements with EGR systems

Internal combustion engine system operable in at least two operatin...

Exhaust gas recirculation flow control for reducing emissions with...

Exhaust gas recirculation control in a dynamic skip fire engine

Engine exhaust manifold

Systems and methods for increasing engine power output under global...

Exhaust gas recirculation system for a vehicle engine

Internal combustion engine and method for controlling such an inter...

System and method of controlling a turbocharged engine

Internal combustion engine with cross-boosting turbochargers

Systems and method for controlling auto-ignition

Water injection to increase hydrogen production by on-board reformi...

System and method for control of volumetric efficiency in a direct...

Exhaust manifold

Multi-cylinder engine

Method and system for matching air flow in an exhaust gas recircula...

Systems and methods for controlling EGR flow during transient condi...

Rotary axial valve

Exhaust gas recirculation and control with twin scroll turbines

Engine arrangements with EGR systems

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

Systems and methods for EGR valve diagnostics

Patents Applicationslast 30 patents

METHODS AND SYSTEMS FOR REDUCING HYDROCARBON EMISSIONS

Applied-Ignition Internal Combustion Engine and Method for Operatin...

METHOD FOR OPERATING AN ENGINE

SYSTEM AND METHOD OF CONTROLLING A TURBOCHARGED ENGINE

ENGINE UNIT AND HYBRID VEHICLE INCLUDING ENGINE UNIT

SYSTEMS AND METHODS FOR CONTROLLING EGR FLOW DURING TRANSIENT CONDI...

ENGINE ARRANGEMENTS WITH EGR SYSTEMS

ENGINE EXHAUST MANIFOLD

EXHAUST GAS RECIRCULATION CONTROL IN A DYNAMIC SKIP FIRE ENGINE

Internal Combustion Engine with Cross-Boosting Turbochargers

METHODS AND SYSTEMS FOR ESTIMATING A FLOW OF GASES IN A SCAVENGE EX...

ENGINE WITH VALVE ASSEMBLY FOR SELECTABLE EXHAUST GAS BYPASS

WATER INJECTION TO INCREASE HYDROGEN PRODUCTION BY ON-BOARD REFORMI...

EXHAUST MANIFOLD

METHOD AND APPARATUS FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE

ROTARY AXIAL VALVE

Internal Combustion Engine Having Catalyzed Heat Exchanger for Stea...

Intake Manifold

SPARK IGNITED ENGINE LOAD EXTENSION WITH LOW PRESSURE EXHAUST GAS R...

INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING SUCH AN INTER...

SYSTEM AND METHOD FOR CONTROL OF VOLUMETRIC EFFICIENCY IN A DIRECT...

WATER INJECTION TO INCREASE HYDROGEN PRODUCTION BY ON-BOARD REFORMI...

Valve System And Assembly Including The Same

A METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE

SYSTEMS AND METHODS FOR CONTROLLING EGR FLOW DURING TRANSIENT CONDI...

METHOD AND SYSTEMS FOR EXHAUST GAS CONTROL

MULTI-CYLINDER ENGINE

Internal Combustion Engine Having Dedicated EGR Cylinder(s) and Sta...

SYSTEMS AND METHODS FOR EGR VALVE DIAGNOSTICS

EXHAUST GAS RECIRCULATION AND CONTROL WITH TWIN SCROLL TURBINES