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    Method for a combustion machine with two times three strokes
    1.
    发明授权
    Method for a combustion machine with two times three strokes 有权

    公开(公告)号：US12123342B2

    公开(公告)日：2024-10-22

    申请号：US18585308

    申请日：2024-02-23

    申请人： Dr. Ing. h. c. F. Porsche AG ,  Technical University of Cluj-Napoca

    发明人： Andre Kopp ,  Ovidiu Barac-Zbircea ,  Nicolae Vlad Burnete

    IPC分类号： F02B75/02 ,  F02B29/00

    CPC分类号： F02B75/02 ,  F02B29/00 ,  F02B2075/026

    摘要： A method for a combustion engine has a working cycle of three revolutions of the crankshaft. The method includes: feeding a fuel mixture into a combustion chamber of a cylinder while moving a piston from a second top dead-center to a first bottom dead-center; compressing an air-fuel mixture in the combustion chamber while moving the piston from the first bottom dead-center to a first top dead-center; burning the air-fuel mixture while moving the piston from the first top dead-center to a second bottom dead-center; compressing a gas mixture in the combustion chamber while moving the piston from the second bottom dead-center to the first top dead-center; burning the gas mixture while moving the piston from the first top dead-center to the first bottom dead-center; and expelling the gas mixture from the combustion chamber while moving the piston from the first bottom dead-center to the second top dead-center.

    Split cycle internal combustion engine
    5.
    发明授权
    Split cycle internal combustion engine 有权

    公开(公告)号：US11952938B2

    公开(公告)日：2024-04-09

    申请号：US18040830

    申请日：2021-08-02

    申请人： FPT INDUSTRIAL S.P.A.

    发明人： Clino D'Epiro ,  Pierangelo Feola ,  Giuseppe Cereda ,  Marco Rocchini

    IPC分类号： F02B33/22 ,  F02B29/04 ,  F02B75/02 ,  F02D13/02 ,  F02D13/04

    CPC分类号： F02B33/22 ,  F02B29/0418 ,  F02B29/0481 ,  F02B75/02 ,  F02D13/0207 ,  F02D13/04 ,  F02B2075/025

    摘要： Split-cycle internal combustion engine comprising at least one compressor cylinder and at least one combustion cylinder each associated with a relating piston and a relating head, equipped with at least one admission valve and one exhaust valve of the combustor piston, first controller of the at least one admission valve and second controller of the at least one exhaust valve, the piston of the combustion cylinder is associated with a crankshaft by a crank mechanism and when the engine is in a firing condition the second controller is arranged to cause a first opening event of the at least one exhaust valve in a first predetermined angular position of the crankshaft and when the engine is in the engine braking condition the second controller is arranged to reposition the first event in a second predetermined angular position out of phase by 180 degrees with respect to the first angular position.

    TWO-STROKE ENGINE
    6.
    发明公开
    TWO-STROKE ENGINE 审中-公开

    公开(公告)号：US20230399973A1

    公开(公告)日：2023-12-14

    申请号：US18334193

    申请日：2023-06-13

    申请人： Andreas Stihl AG & Co. KG

    发明人： Michael Grether ,  Robert Koehli ,  Richard Wirt ,  Bernd Engel

    IPC分类号： F02B33/02 ,  F02B75/02

    CPC分类号： F02B33/02 ,  F02B75/02 ,  F02B2075/025

    摘要： A two-stroke engine possesses a cylinder, in the cylinder bore of which a combustion chamber is formed. The combustion chamber is bounded by a reciprocating piston, which drives a crankshaft rotatably mounted in a crankcase. A crankcase interior is fluidically connected to the combustion chamber across at least one transfer channel in at least one position of the piston. The at least one transfer channel emerges with a discharge opening in the crankcase interior and with at least one transfer window on the cylinder bore. It is proposed that all transfer channels have an average length as measured from the discharge opening to the transfer window, the average length being at least 1.5 in relation to the stroke, and that the volume of the crankcase interior including all transfer channels is at most 3.1 in relation to the piston displacement.

    Two-stroke internal combustion engine
    7.
    发明授权
    Two-stroke internal combustion engine 有权

    公开(公告)号：US11828208B2

    公开(公告)日：2023-11-28

    申请号：US17915072

    申请日：2021-03-23

    申请人： Marek Zak

    发明人： Marek Zak

    IPC分类号： F01L7/12 ,  F01L7/06 ,  F02B25/06 ,  F02B75/02

    CPC分类号： F01L7/12 ,  F01L7/06 ,  F02B25/06 ,  F02B75/02 ,  F01L2313/00 ,  F02B2075/025

    摘要： The invention discloses a two-stroke internal combustion engine having an engine housing with a crankcase in which a crankshaft is connected to a piston moving in a cylinder, an exhaust port leading from the cylinder space and opening at the level of the lower dead center of the crankshaft, the exhaust port is configured to be closed by a piston when the crankshaft is in its top dead center position, characterized in that it further has a rotary disk with an opening or recess on a part of its circumference, or with a protrusion on a part of its circumference, the rotary disk extending with its circumference into the exhaust port so that the exhaust port is completely closable by the rotary disk.

    QUADRUPLE ACTING SCOTCH YOKE ENGINE
    9.
    发明公开
    QUADRUPLE ACTING SCOTCH YOKE ENGINE 审中-公开

    公开(公告)号：US20230323807A1

    公开(公告)日：2023-10-12

    申请号：US18334443

    申请日：2023-06-14

    申请人： Sky Moon Huddleston

    发明人： Sky Moon Huddleston

    IPC分类号： F02B75/00 ,  F02B75/02

    CPC分类号： F02B75/002 ,  F02B2075/025 ,  F02B2075/027 ,  F02B75/02

    摘要： The present invention relates to a two strokes per cycle Scotch Yoke engine that completes four power strokes per revolution per pair of pistons/cylinders by using both sides of each piston as a combustion chamber. This doubles the power to weight ratio over previous scotch yoke engines and quadruples the power to weight ratio over conventional 4 stroke cycle engines. The present invention is capable of operating in and withstanding the forces of either deflagration (subsonic) and pulse detonation (supersonic) cycles, and is capable of homogeneous charge compression ignition. The present invention can also be an internal/external combustion gas/steam hybrid. The present invention can operate under constant volume or constant pressure cycles as well as most thermal cycles of operation (EG the Otto and Diesel cycle). The present invention works best when using a modified Humphrey cycle to achieve homogeneous charge compression ignition pulse detonation engine using constant volume combustion.