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    TWO-CYCLE ENGINE
    2.
    发明申请
    TWO-CYCLE ENGINE 有权

    公开(公告)号：US20230036494A1

    公开(公告)日：2023-02-02

    申请号：US17859151

    申请日：2022-07-07

    申请人： Yamabiko Corporation

    发明人： Ken Shirai ,  Shiro Yamaguchi

    IPC分类号： F02F1/22 ,  F02B25/14 ,  F02B33/04

    摘要： Two-cycle engine includes cylinder block formed with a cylinder and crank chamber. The cylinder block includes: an exhaust passage leading to a combustion chamber in the cylinder through an exhaust port opened to an inner circumferential surface of the cylinder; a scavenging port opened to the inner circumferential surface of the cylinder; a communication passage extending from the scavenging port in a radial direction of the cylinder; and a scavenging passage extending in an axial direction of the cylinder, communicating with the crank chamber, and having an opening portion formed in a bottom surface of the communication passage. A ceiling surface of the communication passage is inclined toward a cylinder head with increasing distance from a scavenging passage side thereof toward the scavenging port. A bottom surface of the communication passage is inclined toward the crank chamber with increasing distance from a scavenging passage side thereof toward the scavenging port.

    TWO-STROKE ENGINE
    3.
    发明申请
    TWO-STROKE ENGINE 有权

    公开(公告)号：US20230017963A1

    公开(公告)日：2023-01-19

    申请号：US17842823

    申请日：2022-06-17

    申请人： YAMABIKO CORPORATION

    发明人： Kenta ITO ,  Takahiro YAMAZAKI ,  Shouta GENBA ,  Takahiro KINOSHITA

    IPC分类号： F02B25/14 ,  F02F1/22 ,  F02B33/04

    摘要： An engine (2) is a four-flow scavenging type engine. Four scavenging ports (34) include: first right and left scavenging ports (34(lef-1) and 34(ref-1)) that lie on a side relatively away from an exhaust port (22) and that lie facing each other with a cylinder (4) in between; and second right and left scavenging ports (34(lef-2) and 34(ref-2)) that lie closer to the exhaust port (22) than first right and left scavenging ports do and that lie facing each other with the cylinder (4) in between. The second left scavenging port and the first right scavenging port that make up a first mutually diagonal set (Diag-No.1) have different opening timings from those of the first left scavenging port and the second right scavenging port that make up a second mutually diagonal set (Diag-No.2).

    VALVE TIMING SYSTEM AND METHOD
    5.
    发明申请
    VALVE TIMING SYSTEM AND METHOD 有权

    公开(公告)号：US20220127979A1

    公开(公告)日：2022-04-28

    申请号：US17572074

    申请日：2022-01-10

    申请人： LSE R&D ENGINEERING LIMITED

    发明人： Allen Eugene Looney

    IPC分类号： F01L7/18 ,  F01L1/02 ,  F01L1/12 ,  F01L1/26 ,  F16H1/06 ,  F02F1/22 ,  F01L7/06 ,  F01L7/14 ,  F02F7/00

    摘要： In an internal combustion engine, first and second rotating members, one for the intake valve and one for the exhaust valve rotate next to the outside of an engine cylinder on opposite sides thereof when driven by a drive gear attached to the end of the engine's crankshaft. Each rotating member may include a ring gear having a valve port or aperture near its perimeter that cyclically aligns with a corresponding valve port formed through the cylinder wall near the top of the cylinder. A method of controlling valve timing comprises the steps of causing the rotating member containing the second valve port to periodically align in synchronism with the first port to control the passage of an air/fuel mixture and exhaust gases through the combustion cycles of the engine.

    Internal combustion engine
    6.
    发明授权
    Internal combustion engine 有权

    公开(公告)号：US10989138B2

    公开(公告)日：2021-04-27

    申请号：US15937293

    申请日：2018-03-27

    申请人： Quest Engines, LLC ,  Steve Blom

    发明人： Elario Dino Dalmas, II ,  Roy A. Blom

    IPC分类号： F02F3/28 ,  F01L3/20 ,  F02F3/02 ,  F02B33/04 ,  F02B33/30 ,  F02F1/18 ,  F01L3/00 ,  F02F1/22

    摘要： Internal combustion engines having pistons with one or more depressions located on the piston head to facilitate the movement of air/charge in the cylinder are disclosed. The pistons may include a skirt with a field of pockets that provide a ringless, non-lubricated, seal equivalent. The piston head also may be domed to further facilitate the movement of air/charge in the cylinder. The engines may also have non-circular, preferably rectangular, cross-section pistons and cylinders. The engines also may use multi-stage poppet valves in lieu of conventional poppet valves, and may include a split crankshaft. The engines may use the pumping motion of the engine piston to supercharge the cylinder with air/charge. The engines also may operate in an inverted orientation in which the piston is closer to the local gravitationally dominant terrestrial body's center of gravity at top dead center position than at bottom dead center position.