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    Intake system for a two-stroke internal combustion engine
    1.
    发明授权
    Intake system for a two-stroke internal combustion engine 有权
    二冲程内燃机进气系统

    公开(公告)号：US08826869B2

    公开(公告)日：2014-09-09

    申请号：US13453129

    申请日：2012-04-23

    Applicant: Peter Hofbauer ,  Adrian Tusinean

    Inventor： Peter Hofbauer ,  Adrian Tusinean

    IPC: F01B7/14 ,  F02B25/04 ,  F01L21/02 ,  F02B75/28 ,  F01L1/38 ,  F02F1/22 ,  F02B75/22 ,  F02B75/02

    CPC classification number: F02B25/04 ,  F01B7/14 ,  F01L1/38 ,  F01L21/02 ,  F02B75/22 ,  F02B75/28 ,  F02B75/282 ,  F02B2075/025 ,  F02F1/22

    Abstract: A combustion chamber of an internal combustion engine has primary intake ports located a first distance from the crankshaft and primary intake ports located a second distance from the crankshaft. One or more unidirectional valves, such as reed valves, are place in an intake duct upstream of the primary intake ports. The valves prevent backflow from the cylinder into the intake when the pressure in the cylinder exceeds that of the intake. The backflow into the intake is reduced by having valves in the intake; therefore scavenging efficiency is improved. Furthermore, the asymmetry between the intake and exhaust port timing may be reduced by providing such valves. Additionally, the total intake port area can be increased with two sets of intake ports and valves disposed in the primary ports, thereby improving the volumetric efficiency in spite of the pressure drop presented by the valves.

    Abstract translation: 内燃机的燃烧室具有位于离开曲轴的第一距离的主进气口和位于距曲轴的第二距离的主进气口。 一个或多个单向阀（例如簧片阀）位于主进气口上游的进气管道中。 当气缸中的压力超过进气口时，阀门可防止气缸向进气口回流。 通过在入口中具有阀门来减少进入进气口的回流; 因此清除效率提高。 此外，可以通过提供这样的阀来减小进气口和排气口正时之间的不对称性。 此外，可以通过设置在主端口中的两组进气口和阀门来增加总进气口面积，从而提高阀门所呈现的压力下降的体积效率。

    Reciprocating drive means
    2.
    发明授权
    Reciprocating drive means 失效
    往复驱动装置

    公开(公告)号：US4284038A

    公开(公告)日：1981-08-18

    申请号：US78844

    申请日：1979-09-25

    Applicant: Frank E. West

    Inventor： Frank E. West

    IPC: F15B15/14 ,  B06B1/18 ,  F01B11/00 ,  F01L21/02 ,  F01B15/06 ,  F02B71/00

    CPC classification number: B06B1/183 ,  F01B11/003 ,  F01L21/02

    Abstract: Reciprocating drive means powered by a fluid such as compressed air comprising an elongate inner member with a plurality of passageways therein, an outer member slidable on the inner member and a shuttle member slidable with respect to the inner member and within the outer member, the passageways in the inner member being variously and intermittently so connected in use to each other by way of ports in the inner member and compartments provided within the outer member and the shuttle that, upon connection of a determined one of said passageways to a fluid pressure source the outer member moves with reciprocating action with respect to the inner member. The inner member has two fixed discs thereon, between which discs the shuttle member can oscillate, the discs having seals on their peripheral surfaces to seal against the inner wall of the outer member, the outer member is cylindrical with end walls having seals slidable on the inner member and cooperating with ports therein and the shuttle member has axially spaced seals on its inner peripheral surface to cooperate with ports in the inner member and to seal against the inner member and define one of the compartments therebetween. Following movement of the outer member in one direction of movement, the shuttle member is moved by pressure in an opposite direction to cause the outer member to move in said opposite direction.

    Abstract translation: 由诸如压缩空气的流体驱动的往复驱动装置包括其中具有多个通道的细长内部构件，可在内部构件上滑动的外部构件和可相对于内部构件滑动并且在外部构件内的梭构件，通道 在内部构件中通过内部构件中的端口和设置在外部构件和梭中的隔室彼此不同地和间歇地连接在一起，在将所确定的一个所述通道连接到流体压力源时， 外部构件相对于内部构件以往复动作移动。 内部构件在其上具有两个固定盘，梭形构件可以在该盘之间摆动，圆盘在其圆周表面上具有密封以密封外部构件的内壁，外部构件为圆柱形，端壁具有可在 内部构件并与其中的端口配合，并且梭构件在其内周表面上具有轴向隔开的密封件，以与内部构件中的端口配合并且密封抵靠内部构件并且限定其间的隔室之一。 在外部构件沿一个运动方向运动之后，往复运动件通过相反方向的压力运动，从而使外部构件沿相反方向运动。

    Fluid pressure actuator
    3.
    发明授权
    Fluid pressure actuator 失效
    流体压力执行器

    公开(公告)号：US4169404A

    公开(公告)日：1979-10-02

    申请号：US891625

    申请日：1978-03-30

    Applicant: Akira Tsuchihashi

    Inventor： Akira Tsuchihashi

    IPC: F01B11/00 ,  F01L7/00 ,  F01L21/02 ,  F01B13/00

    CPC classification number: F01L21/02 ,  F01B11/001 ,  F01L7/00 ,  Y10S60/916

    Abstract: A fluid pressure actuator having a first member, a second member adapted to rotate relative to the first member, and a third member adapted to move on the second member. One of the first member and the second member is formed thereon with two flanges disposed in spaced-apart relationship for closing opposite ends of a first pressure chamber defined between the first and second members. The flanges are each formed in the outer periphery thereof with a groove communicating with passages formed in the first and second members for supplying therethrough power for moving the third member. The actuator is small in volume, dispenses with piping located outside the actuator, and is easy to provide a fluid seal thereto.

    Abstract translation: 具有第一构件，适于相对于第一构件旋转的第二构件的流体压力致动器和适于在第二构件上移动的第三构件。 第一构件和第二构件中的一个在其上形成有两个以间隔开的关系设置的凸缘，用于封闭限定在第一和第二构件之间的第一压力室的相对端。 凸缘的外周各形成有与形成在第一和第二构件中的通道连通的槽，用于提供用于移动第三构件的动力。 致动器的体积小，省去了位于致动器外侧的管道，并且易于向其提供流体密封。

    Piston and cylinder for two-cycle engines
    4.
    发明授权
    Piston and cylinder for two-cycle engines 失效
    活塞和气缸用于双循环发动机

    公开(公告)号：US4135479A

    公开(公告)日：1979-01-23

    申请号：US751244

    申请日：1976-12-16

    Applicant: Johannes Reitz ,  Erich Stark ,  Dieter Schneck

    Inventor： Johannes Reitz ,  Erich Stark ,  Dieter Schneck

    IPC: F01L21/02 ,  F02B25/14 ,  F02B75/02 ,  F02F1/22 ,  F02F3/24 ,  F02B33/00

    CPC classification number: F02F1/22 ,  F01L21/02 ,  F02B25/14 ,  F02F3/24 ,  F02B2075/025

    Abstract: A piston and cylinder for two-cycle engines wherein the fuel-air mixture is precompressed in the crankcase and flows to the combustion chamber through transfer passages formed in the cylinder wall and under the control of the piston movement. The piston skirt is formed with windows or openings adjacent the end faces of the piston pin, the latter being mounted in piston pin bosses carried by bearing brackets depending from the piston head and, when the piston is at its lower dead center, the windows or openings register with the inlet openings of the transfer passages so that the precompressed fuel-air mixture then flows through the interior of the piston, the openings in the piston skirt and the transfer passages and into the combustion chamber itself which contains a depression volume. The windows or openings in the piston skirt have approximately the same size as the inlet openings of the transfer passages which register with the windows when the piston is at its lower dead center and the piston pin bosses have an aerodynamically favorable shape and are joined to the lower frame portions defining the windows and spaced apart as closely as possible whereas the depression volume of the combustion chamber is accommodated to a substantial extent in the piston head.

    Abstract translation: 一种用于双循环发动机的活塞和气缸，其中燃料 - 空气混合物在曲轴箱中被预压缩并且通过形成在气缸壁中并且在活塞运动的控制下的传送通道流动到燃烧室。 活塞裙部形成有与活塞销的端面相邻的窗口或开口，后者安装在活塞销凸台上，活塞销凸起由活塞头悬挂，并且当活塞处于其下死点时，窗口或 开口与传送通道的入口开口对准，使得预压缩的燃料 - 空气混合物然后流过活塞的内部，活塞裙部中的开口和输送通道并进入包含凹陷体积的燃烧室本身。 活塞裙部中的窗口或开口具有与当活塞处于其下死点时与窗口对准的传送通道的入口大致大致相同的尺寸，并且活塞销凸起具有空气动力学良好的形状并且连接到 下部框架部分限定窗口并且尽可能地间隔开，而燃烧室的按压体积在活塞头中被大量地容纳。

    Pneumao
    8.
    发明授权
    Pneumao 失效

    公开(公告)号：US1465765A

    公开(公告)日：1923-08-21

    申请号：US1465765D

    CPC classification number: B25D9/16 ,  F01L21/02

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