CLIP-FASTENED RACEWAY FOR A VARIABLE COMPRESSION RATIO ENGINE
    11.
    发明申请
    CLIP-FASTENED RACEWAY FOR A VARIABLE COMPRESSION RATIO ENGINE 有权
    用于可变压缩比发动机的CLIP-FASTENED RACEWAY

    公开(公告)号:US20130156356A1

    公开(公告)日:2013-06-20

    申请号:US13717918

    申请日:2012-12-18

    Abstract: A clip-fastened raceway for a variable compression ratio engine includes: at least one curved segment whose outer surface cooperates with a raceway housed in the transmission member or in the control member of the variable compression ratio engine and whose inner surface is maintained in contact with a curved outer surface housed in the toothed wheel of the engine; at least one clip, housed in at least one of the ends of the curved segment and fastened to one or the other of the ends of the curved outer surface housed in the toothed wheel and hooking onto a hook or protrusion which the wheel includes in the vicinity of the end of its curved outer surface, the hook or protrusion being complementary to that of the clip so as to be able to cooperate with the latter.

    Abstract translation: 用于可变压缩比发动机的夹紧的滚道包括:至少一个弯曲部分,其外表面与容纳在传动部件中的滚道或可变压缩比发动机的控制部件配合,并且其内表面保持与 容纳在发动机的齿轮中的弯曲外表面; 至少一个夹子,容纳在弯曲段的至少一个端部中并且紧固到容纳在齿轮中的弯曲外表面的一个或另一个端部,并且钩在钩或突起上,该轮或突起在轮中包括 其弯曲的外表面的端部附近,钩或突起与夹子的钩部或突起互补,以便能​​够与夹子配合。

    ROD FOR A VARIABLE COMPRESSION RATIO ENGINE
    14.
    发明申请

    公开(公告)号:US20180334956A1

    公开(公告)日:2018-11-22

    申请号:US15776730

    申请日:2016-11-17

    Abstract: A rod (1), the length of which is variable, is used for adjusting the compression ratio of an engine. The rod comprises a cylinder rigidly connected to a first end of the rod; a piston that is movable within the cylinder, and is rigidly connected to the second end of the rod, and defines, in the cylinder, a first hydraulic chamber referred to as the “high-pressure” hydraulic chamber, capable of transmitting compression forces, and a second hydraulic chamber referred to as the “low-pressure” hydraulic chamber, capable of transmitting tensile forces; at least one conduit calibrated to enable fluid to flow between the low-pressure chamber and the high-pressure chamber; and return means to bring the rod back to its nominal length, wherein the cross-sections of the low-pressure hydraulic chamber and the high-pressure hydraulic chamber are equal.

    HYDRAULIC CONTROL SYSTEM FOR A VARIABLE COMPRESSION RATIO ENGINE

    公开(公告)号:US20230018219A1

    公开(公告)日:2023-01-19

    申请号:US17756952

    申请日:2020-12-04

    Abstract: A hydraulic control system for a variable compression ratio engine, comprises: a control cylinder comprising a piston, a body in which two hydraulic chambers with equivalent sections are defined on either side of the piston and a return device arranged in one of the chambers, a hydraulic control circuit comprising: at least one duct connecting the two chambers to each other, and a controlled fluid discharging device for establishing or blocking a fluid communication between the chambers, at least one duct connecting one of the chambers to a low-pressure oil supply, and a refill valve, at least one duct connecting an oil outlet to at least one of the chambers, and a relief valve.

    CRANKSHAFT FOR A CONTROLLED VARIABLE COMPRESSION RATIO ENGINE

    公开(公告)号:US20210199049A1

    公开(公告)日:2021-07-01

    申请号:US17058526

    申请日:2019-05-23

    Abstract: A crankshaft for a controlled variable compression ratio engine has an axis of rotation defining a longitudinal axis and comprises at least one crank pin, at least one journal connected by a connecting web, and at least one control element able to move translationally along the longitudinal axis in order to cooperate with an actuator of a system for adjusting the length of a connecting rod. The crankshaft is notable in that the control element, positioned at the connecting arm, comprises an annular part coaxial with the crank pin and capable of establishing continuous contact with the actuator of the system for adjusting the length of the connecting rod, regardless of the angular position of the crankshaft. The crankshaft comprises a fluidic control circuit for moving the control element along the longitudinal axis.

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