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Varying compression ratio
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Parent Industries
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MECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS
F02
Combustion engines
F02D
CONTROLLING COMBUSTION ENGINES
Current Industry
F02D15/00
Varying compression ratio
Sub Industries
F02D15/02
by alteration or displacement of piston stroke
F02D15/04
by alteration of volume of compression space without changing piston stroke
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Patents Grants
last 30 patents
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Patent Grant
Variable compression ratio device
Patent number
12,359,629
Issue date
Jul 15, 2025
Almir Gonçalves Pereira
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Control device for variable compression ratio mechanism, and diagno...
Patent number
12,297,784
Issue date
May 13, 2025
Hitachi Astemo, Ltd.
Yuya Shinozaki
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Internal combustion engine control device and internal combustion e...
Patent number
12,203,420
Issue date
Jan 21, 2025
Toyota Jidosha Kabushiki Kaisha
Yuta Ochi
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Adaptive any-fuel camless reciprocating engine
Patent number
12,173,664
Issue date
Dec 24, 2024
The Regents of the University of California
Raymond Mitchell Spearrin
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Control method and control device for hybrid vehicle
Patent number
12,065,127
Issue date
Aug 20, 2024
Nissan Motor Co., Ltd.
Hiroki Ichihara
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Systems and methods for variable compression ratio phaser having a...
Patent number
11,970,987
Issue date
Apr 30, 2024
HUSCO Automotive Holdings LLC
Curtis L. Van Weelden
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Variable compression ratio device
Patent number
11,879,400
Issue date
Jan 23, 2024
Almir Gonçalves Pereira
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Internal-combustion engine control method and control device
Patent number
11,821,374
Issue date
Nov 21, 2023
Nissan Motor Co., Ltd.
Kenji Suzuki
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Control method and control device for internal combustion engine
Patent number
11,713,726
Issue date
Aug 1, 2023
Nissan Motor Co., Ltd.
Tomoyuki Koike
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Methods and systems for reducing hydrocarbon breakthrough
Patent number
11,702,998
Issue date
Jul 18, 2023
Ford Global Technologies, LLC
Aed Dudar
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Upspeeded operation of alcohol-enabled gasoline engines
Patent number
11,643,983
Issue date
May 9, 2023
Massachusetts Institute of Technology
Daniel R. Cohn
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Actuation assembly for phaser system
Patent number
11,619,182
Issue date
Apr 4, 2023
Schaeffler Technologies AG & Co. KG
Nicholas Hrusch
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Compression ratio methods and systems for particulate filter regene...
Patent number
11,614,042
Issue date
Mar 28, 2023
GM Global Technology Operations LLC
J. Michael Gwidt
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Internal combustion engine system
Patent number
11,598,248
Issue date
Mar 7, 2023
Volvo Truck Corporation
Arne Andersson
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Throttle-at-valve apparatus
Patent number
11,598,256
Issue date
Mar 7, 2023
Robert P. Hogan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Internal combustion engine with variable compression ratio and mech...
Patent number
11,560,835
Issue date
Jan 24, 2023
Miroslaw Szymkowiak
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Zero intrusion valve for internal combustion engine
Patent number
11,560,836
Issue date
Jan 24, 2023
Robert P. Hogan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Longitudinally adjustable connecting rod with mass-optimized contro...
Patent number
11,525,392
Issue date
Dec 13, 2022
Iwis Motorsysteme GmbH & Co. KG
Malte Heller
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Cranktrain phase adjuster for variable compression ratio
Patent number
11,519,342
Issue date
Dec 6, 2022
Schaeffler Technologies AG & Co. KG
Nicholas Hrusch
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Pivotal drive system for internal combustion engine
Patent number
11,454,164
Issue date
Sep 27, 2022
Robert P. Hogan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method for providing variable compression ratio in a combustion eng...
Patent number
11,441,493
Issue date
Sep 13, 2022
HEDMAN ERICSSON PATENT AB
Mats Hedman
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
System and method for control of compression in internal combustion...
Patent number
11,428,174
Issue date
Aug 30, 2022
Lawrence Livermore National Security, LLC
Daniel L. Flowers
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Cranktrain phase adjuster for variable compression ratio
Patent number
11,428,173
Issue date
Aug 30, 2022
Schaeffler Technologies AG & Co. KG
Nicholas Hrusch
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Method and system for diagnosing and/or controlling a reciprocating...
Patent number
11,421,587
Issue date
Aug 23, 2022
AVL List GmbH
Philip Williams
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
All-stroke-variable internal combustion engine
Patent number
11,408,336
Issue date
Aug 9, 2022
Robert P. Hogan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Device for varying a compression ratio, reciprocating-piston intern...
Patent number
11,401,859
Issue date
Aug 2, 2022
Bayerische Motoren Werke Aktiengesellschaft
Ulrich Gutzer
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Length-adjustable connecting rod with reduced-mass outlet valve
Patent number
11,378,004
Issue date
Jul 5, 2022
Iwis Motorsysteme GmbH & Co. KG
Malte Heller
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Variable compression ratio internal combustion engine
Patent number
11,378,021
Issue date
Jul 5, 2022
Toyota Jidosha Kabushiki Kaisha
Naruto Yamane
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Reciprocating piston machine and method and device for diagnosing a...
Patent number
11,371,426
Issue date
Jun 28, 2022
AVL List GmbH
Siegfried Loesch
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Internal combustion engine with improved efficiency
Patent number
11,352,963
Issue date
Jun 7, 2022
Herbert U. Fluhler
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Patents Applications
last 30 patents
Information
Patent Application
CONTROL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE, INTERNAL COMBUSTI...
Publication number
20250172101
Publication date
May 29, 2025
Cummins Power Generation Inc.
Axel O. zur Loye
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
VARIABLE DISPLACEMENT ENGINE
Publication number
20240309820
Publication date
Sep 19, 2024
JAY TRAN
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
WORK VEHICLE POWER SYSTEM WITH DYNAMIC AUTO-IGNITION ASSISTANCE COM...
Publication number
20240209805
Publication date
Jun 27, 2024
Deere & Company
Kevin B. DeVries
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Control Device for Variable Compression Ratio Mechanism, and Diagno...
Publication number
20240151187
Publication date
May 9, 2024
Hitachi Astemo, Ltd.
Yuya SHINOZAKl
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
VARIABLE COMPRESSION RATIO DEVICE
Publication number
20240141841
Publication date
May 2, 2024
Almir Gonçalves Pereira
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
ADAPTIVE ANY-FUEL CAMLESS RECIPROCATING ENGINE
Publication number
20230383705
Publication date
Nov 30, 2023
The Regents of the University of California
Raymond Mitchell Spearrin
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
TELESCOPIC CONNECTING ROD FOR A VARIABLE COMPRESSION RATIO ENGINE
Publication number
20230349333
Publication date
Nov 2, 2023
MCE 5 Development
René-Pierre Bertheau
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Systems and Methods for Variable Compression Ratio Phaser Having a...
Publication number
20230323825
Publication date
Oct 12, 2023
HUSCO AUTOMOTIVE HOLDINGS LLC
Curtis L. Van Weelden
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
METHODS AND SYSTEMS FOR REDUCING HYDROCARBON BREAKTHROUGH
Publication number
20230167777
Publication date
Jun 1, 2023
FORD GLOBAL TECHNOLOGIES, L.L.C.
Aed Dudar
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
VARIABLE-LENGTH CONNECTING ROD FOR AN ENGINE WITH A CONTROLLED COMP...
Publication number
20230042411
Publication date
Feb 9, 2023
MCE 5 Development
Renè-Pierre Bertheau
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
HYDRAULIC CONTROL SYSTEM FOR A VARIABLE COMPRESSION RATIO ENGINE
Publication number
20230018219
Publication date
Jan 19, 2023
MCE 5 Development
René-Pierre Bertheau
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
CRANKTRAIN PHASE ADJUSTER FOR VARIABLE COMPRESSION RATIO
Publication number
20220252015
Publication date
Aug 11, 2022
SCHAEFFLER TECHNOLOGIES AG & CO. KG
Nicholas HRUSCH
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
ALL-STROKE-VARIABLE INTERNAL COMBUSTION ENGINE
Publication number
20220220887
Publication date
Jul 14, 2022
Robert P. Hogan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
PIVOTAL DRIVE SYSTEM FOR INTERNAL COMBUSTION ENGINE
Publication number
20220220889
Publication date
Jul 14, 2022
Robert P. Hogan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
ZERO INTRUSION VALVE FOR INTERNAL COMBUSTION ENGINE
Publication number
20220220888
Publication date
Jul 14, 2022
Robert P. Hogan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
THROTTLE-AT-VALVE APPARATUS
Publication number
20220220890
Publication date
Jul 14, 2022
Robert P. Hogan
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
ADAPTIVE ANY-FUEL CAMLESS RECIPROCATING ENGINE
Publication number
20220170423
Publication date
Jun 2, 2022
The Regents of the University of California
Raymond Mitchell Spearrin
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
INTERNAL COMBUSTION ENGINE SYSTEM
Publication number
20220154652
Publication date
May 19, 2022
VOLVO TRUCK CORPORATION
Arne ANDERSSON
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Upspeeded Operation Of Alcohol-Enabled Gasoline Engines
Publication number
20220136449
Publication date
May 5, 2022
Massachusetts Institute of Technology
Daniel R. Cohn
B60 - VEHICLES IN GENERAL
Information
Patent Application
VARIABLE COMPRESSION RATIO DEVICE
Publication number
20220136431
Publication date
May 5, 2022
Almir Gonçalves Pereira
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
ACTUATION ASSEMBLY FOR PHASER SYSTEM
Publication number
20220112848
Publication date
Apr 14, 2022
Schaeffler Technologies Ag & Co., KG
Nicholas Hrusch
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
CRANKTRAIN PHASE ADJUSTER FOR VARIABLE COMPRESSION RATIO
Publication number
20220106916
Publication date
Apr 7, 2022
Nicholas Hrusch
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
METHOD FOR PROVIDING VARIABLE COMPRESSION RATIO IN A COMBUSTION ENG...
Publication number
20220042467
Publication date
Feb 10, 2022
HEDMAN ERICSSON PATENT AB
Mats Hedman
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
CONTROL METHOD AND CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Publication number
20220003175
Publication date
Jan 6, 2022
NISSAN MOTOR CO., LTD.
Tomoyuki KOIKE
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Application
Internal Combustion Engine Control Device
Publication number
20220001851
Publication date
Jan 6, 2022
Hitachi Astemo, Ltd.
Shogo NAMBA
B60 - VEHICLES IN GENERAL
Information
Patent Application
INTERNAL COMBUSTION ENGINE WITH VARIABLE COMPRESSION RATIO AND MECH...
Publication number
20210396173
Publication date
Dec 23, 2021
Miroslaw SZYMKOWIAK
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
SENSOR UNIT FOR A LENGTH-ADJUSTABLE CONNECTING ROD
Publication number
20210372320
Publication date
Dec 2, 2021
IWIS MOTORSYSTEME GMBH & CO. KG
Karim ELWAN
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
METHOD AND DEVICE FOR INCREASED EXHAUST GAS TEMPERATURE IN A DIESEL...
Publication number
20210355888
Publication date
Nov 18, 2021
HEDMAN ERICSSON PATENT AB
Mats Hedman
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
LONGITUDINALLY ADJUSTABLE CONNECTING ROD WITH MASS-OPTIMIZED CONTRO...
Publication number
20210348552
Publication date
Nov 11, 2021
IWIS MOTORSYSTEME GMBH & CO. KG
Malte HELLER
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
LENGTH-ADJUSTABLE CONNECTING ROD WITH REDUCED-MASS OUTLET VALVE
Publication number
20210348551
Publication date
Nov 11, 2021
IWIS MOTORSYSTEME GMBH & CO. KG
Malte HELLER
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...