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    Cylinder bore surface structures for an opposed-piston engine
    1.
    发明授权
    Cylinder bore surface structures for an opposed-piston engine 有权

    公开(公告)号：US11598211B2

    公开(公告)日：2023-03-07

    申请号：US16556028

    申请日：2019-08-29

    申请人： ACHATES POWER, INC.

    发明人： Fabien G. Redon

    IPC分类号： F01B7/14 ,  F02F1/00 ,  F16C29/02

    摘要： A cylinder for an internal combustion opposed-piston engine includes a bore, either as part of the cylinder directly or of a liner. The bore has a surface for guiding a pair of pistons disposed for opposing movement in the cylinder. The cylinder bore has three zones of surface finishes: an inner zone extending between and including exhaust and intake ports, where only piston compression rings travel on the bore surface; two instances of an outer zone where only piston oil control rings travel on the bore surface; and two instances of a port zone where both types of rings travel on overlapping paths in the same bore surface portion. Each zone may have a particular surface finish that is tailored to specific requirements including oil control, ring wear, and scuff resistance relevant to the zone.

    Engine crank and connecting rod mechanism
    2.
    发明授权
    Engine crank and connecting rod mechanism 有权

    公开(公告)号：US10947847B2

    公开(公告)日：2021-03-16

    申请号：US16817487

    申请日：2020-03-12

    申请人： Anton Giger

    发明人： Anton Giger

    IPC分类号： F01B9/04 ,  F01B7/02 ,  F02B75/28 ,  F02B75/32 ,  F02F7/00 ,  F01B7/14

    摘要： A crank and connecting rod mechanism, comprising at least one piston, which reciprocates within at least one cylinder, comprising: at least one connecting rod, comprising: a piston end pivotally connected to the at least one piston, a crank end; at least one gear set, comprising: a crankpin, the crank end pivotally connected to the crankpin; a crank gear; a crank gear shaft, the crank gear rotatably mounted on the crank gear shaft, the crankpin located between centerline of the crank gear shaft and radius of the pitch circle of the crank gear; a stationary gear, the crank gear meshing with the stationary gear, the crank end driving the crankpin, which drives the crank gear and the crank gear shaft about the stationary gear; the crank pin and the crank end rotating about the stationary gear and following the path of a roulette of a centered trochoid about the stationary gear.

    Opposed-piston compact engine with crankshafts rotating on a different plant to those of the cylinder axes
    3.
    发明授权
    Opposed-piston compact engine with crankshafts rotating on a different plant to those of the cylinder axes 有权

    公开(公告)号：US10718263B2

    公开(公告)日：2020-07-21

    申请号：US16093143

    申请日：2016-05-27

    申请人： TWO HEADS, LLC

    发明人： Jose Luis Alonso

    IPC分类号： F02B75/28 ,  F01B7/14 ,  F02F7/00 ,  F01M1/14 ,  F01M3/00 ,  F16J1/08 ,  F16J9/12 ,  F01B9/02 ,  F02B33/04 ,  F02B33/10

    摘要： This invention relates to the field of opposed-piston engines having two pistons in one cylinder configured to have facing heads. Specifically, this is an engine with two crankshafts, two piston heads facing each other in a single cylinder, with the following features: compact size relative to a comparable design, improved or equivalent performance to a comparable design as a result of any of the following: locating crankshafts in a different plane from the cylinder axes; the use of shared duct structures; and the use of an embedded compressor chamber for efficient operation to cover all volumetric requirements, fulfilling the entire thermodynamic cycle, and performing in addition the sweeping and overloading of air or an air/fuel mixture in the cylinder combustion chamber in each revolution of two or more crankshafts, either with or without advancement between the crankshafts.

    Block Structure and Fastening Features for Opposed-Piston Four-Stroke Engines
    10.
    发明申请
    Block Structure and Fastening Features for Opposed-Piston Four-Stroke Engines 审中-公开

    公开(公告)号：US20190093478A1

    公开(公告)日：2019-03-28

    申请号：US16135813

    申请日：2018-09-19

    申请人： AVL Powertrain Engineering, Inc.

    发明人： Vasile FRASINEL

    IPC分类号： F01B7/14 ,  F02B75/28 ,  F02F1/18 ,  F02F1/22 ,  F02F1/00

    CPC分类号： F01B7/14 ,  F02B75/282 ,  F02F1/004 ,  F02F1/186 ,  F02F1/22

    摘要： An engine block for an opposed-piston engine includes a first center section and a second center section. The first center section defines a first cylinder half bore having a first longitudinal axis and a first plurality of fastener bores. The second center section defines a second cylinder half bore having a second longitudinal axis and a second plurality of fastener bores that extend from a first end thereof to a second end thereof. The second center section is configured to abut the first center section such that: the first and second cylinder half bores are in fluid communication with one another to collectively form a single cylinder; the first and second longitudinal axes are offset from one another; and the first and second pluralities of fastener bores are aligned with one another for receiving a first plurality of fasteners to join the first and second center sections to one another.