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    Loop-scavenged two-stroke internal combustion engines
    1.
    发明授权
    Loop-scavenged two-stroke internal combustion engines 失效
    环路清扫二冲程内燃机

    公开(公告)号：US06196171B1

    公开(公告)日：2001-03-06

    申请号：US09125207

    申请日：1999-02-10

    Applicant: Jean Frederic Melchior

    Inventor： Jean Frederic Melchior

    IPC: F01L128

    CPC classification number: F01L1/285 ,  F02B2075/025

    Abstract: A loop-scavenged two-stroke internal combustion engines with an intake valve (7) engaging a seat (10) for fresh air intake, and an exhaust valve (8) engaging a seat (13) for combustion gas exhaust, is disclosed. The valves are arranged in such a way that the fresh air intake scavenges a substantial part of the burnt gases. In at least one of the valves, the valve surface (21) located downstream from the valve face (9) and the surface (23) of the downstream extension of the seat (10) are configured in such a way that they form a substantially isentropic diffuser.

    Abstract translation: 公开了一种环路清扫的二冲程内燃机，其具有与用于新鲜空气进入的阀座（10）接合的进气阀（7）和与用于燃烧气体排出的阀座（13）接合的排气阀（8）。 阀以这样的方式布置，使得新鲜空气进口清除大部分燃烧的气体。 在至少一个阀中，位于阀面（9）下游的阀表面（21）和座（10）的下游延伸部分的表面（23）构造成使得它们形成基本上 等熵扩散器。

    Four stroke piston engine
    2.
    发明授权
    Four stroke piston engine 失效
    四冲程活塞发动机

    公开(公告)号：US4640237A

    公开(公告)日：1987-02-03

    申请号：US768559

    申请日：1985-08-22

    Applicant: Josef Schaich

    Inventor： Josef Schaich

    IPC: F01L1/28 ,  F02B1/04 ,  F02B17/00 ,  F02B31/04 ,  F02B75/02 ,  F02M57/04 ,  F02M57/06 ,  F02B3/00

    CPC classification number: F02B17/00 ,  F01L1/285 ,  F02B31/04 ,  F02M57/04 ,  F02M57/06 ,  F02B1/04 ,  F02B2075/027 ,  Y02T10/146

    Abstract: A four-stroke piston engine in which air is drawn into a cylinder while rotary motion about the cylinder axis is imparted to the air. Fuel may be blown/injected into the air during its rotation in the cylinder while the fuel supply is located on the axis of the cylinder and supplies at least one jet of fuel directed radially outwardly and which jet of fuel in cooperation with the rotating air forms at least one helical stream of mixture within the cylinder, preferably during the compression stroke, which is transformed into a coherent mixture zone enclosed by a ring of air upon completion of compression. The piston may have a recess when the piston approaches top dead center so that an enriched zone is formed in the lower region of the compression space which can be ignited by electrodes disposed in said lower region of the compression space.

    Abstract translation: 四冲程活塞发动机，其中空气被吸入气缸，同时围绕气缸轴线的旋转运动被赋予空气。 燃料可以在其在气缸中旋转期间吹入/喷射到空气中，同时燃料供应位于气缸的轴线上并且供应至少一个径向向外指向的燃料喷射，并且与旋转空气形成的燃料喷射 在气缸内的混合物中的至少一个螺旋流，优选在压缩冲程期间，其在压缩完成后转变成由空气环包围的相干混合区域。 当活塞接近上止点时，活塞可以具有凹部，使得富集区形成在压缩空间的下部区域中，该富集区域可被设置在压缩空间的下部区域中的电极点燃。

    Internal Combustion Engine
    7.
    发明申请
    Internal Combustion Engine 有权
    内燃机

    公开(公告)号：US20150345406A1

    公开(公告)日：2015-12-03

    申请号：US14293635

    申请日：2014-06-02

    Applicant: Riley Dale Pelfrey ,  Rick Dean Pelfrey ,  Jared Brewer ,  Seule Kabir

    Inventor： Riley Dale Pelfrey ,  Rick Dean Pelfrey ,  Jared Brewer ,  Seule Kabir

    IPC: F02D13/02

    CPC classification number: F01L1/047 ,  F01L1/26 ,  F01L1/285 ,  F01L3/00 ,  F01L7/06 ,  F01L7/14 ,  F01L7/18

    Abstract: This invention presents a method to improve the volumetric efficiency of a reciprocating internal combustion engine using a common transfer port between the exhaust and intake port. The engine employs a poppet valve as part of the intake and exhaust valve to control the flow from the transfer port into the combustion chamber. Two plate type valves outside of the combustion chamber are located at both ends of the transfer port to control the flow coming from the intake and out the exhaust. The timing for opening and closing of the poppet type valve is regulated to remain open for a longer duration which provides complete evacuation of air in the exhaust stroke. The ejector effect from the exhaust flow through the transfer port draws a vacuum into the cylinder. When the exhaust plate closes, the vacuum diverts the intake into the cylinder.

    Abstract translation: 本发明提出了一种提高使用在排气和进气口之间的公共输送口的往复式内燃机的体积效率的方法。 发动机采用提升阀作为进排气阀的一部分，以控制从输送口进入燃烧室的流量。 在燃烧室外的两个板式阀位于输送口的两端，以控制从进气口排出的流量。 调节提升阀的打开和关闭的时间，以保持打开较长的持续时间，从而在排气冲程中完全排出空气。 从排气流经传输端口的喷射器效应将真空吸入气缸。 当排气板关闭时，真空将进气进入气缸。

    Internal combustion engine
    8.
    发明授权
    Internal combustion engine 失效
    内燃机

    公开(公告)号：US06971344B2

    公开(公告)日：2005-12-06

    申请号：US10380998

    申请日：2001-09-21

    Applicant: Makoto HIrano

    Inventor： Makoto HIrano

    IPC: F01N5/02 ,  F01L1/28 ,  F01L1/46 ,  F01L3/12 ,  F02F1/24 ,  F02F1/42 ,  F02G5/02 ,  F01N3/02

    CPC classification number: F01L1/285 ,  F01L1/28 ,  F01L1/462 ,  F01L3/12 ,  F02G5/02 ,  Y02T10/166

    Abstract: An internal combustion engine is provided in which an intake valve, which opens and closes an intake valve hole formed in a cylinder head facing a combustion chamber has a hollow structure. An exhaust valve hole formed in the intake valve is made to open and close by an exhaust valve coaxially housed within the intake valve. The intake valve hole communicates directly with an intake port, and the exhaust valve hole coniniunicates with an exhaust port via an exhaust passage formed within the hollow intake valve. This ensures that the intake valve has a large opening area, thus increasing the intake charging efficiency. Furthermore, since exhaust gas coming out of the combustion chamber does not make direct contact with the cylinder head, which has a large heat capacity, any decrease in temperature of the exhaust gas can be minimized, thereby utilizing waste heat effectively.

    Abstract translation: 提供一种内燃机，其中打开和关闭形成在面向燃烧室的气缸盖中的进气阀孔的进气阀具有中空结构。 形成在进气门中的排气阀孔被同轴地容纳在进气门内的排气门打开和关闭。 进气阀孔与进气口直接连通，排气阀孔通过形成在中空进气门内的排气通道与排气口相连。 这确保进气门具有大的开口面积，从而增加进气充气效率。 此外，由于从燃烧室排出的废气不与具有大的热容量的气缸盖直接接触，所以可以使排气温度的任何降低最小化，从而有效地利用废热。

    Internal-combustion engine with concentric, annular intake and exhaust valves
    9.
    发明授权
    Internal-combustion engine with concentric, annular intake and exhaust valves 失效
    内燃机同心，环形进气和排气阀

    公开(公告)号：US5355848A

    公开(公告)日：1994-10-18

    申请号：US140639

    申请日：1993-10-25

    Applicant: Richard J. Denton

    Inventor： Richard J. Denton

    IPC: F01L1/28 ,  F02B1/04 ,  F02B3/06

    CPC classification number: F01L1/285 ,  F02B1/04 ,  F02B2275/18 ,  F02B3/06

    Abstract: An internal-combustion-engine cylinder head has a concentric, annular passages to admit an intake charge into a combustion chamber and to remove combustion product exhaust gasses. Each of these passages is isolated from the combustion chamber by the closure of concentric ring valves coaxial with the engine cylinder. Mechanical devices are provided to actuate the valves according to the timing of an engine camshaft. The actuating mechanisms comprise multiple valve stems, concentric operating plates, fork-shaped actuators, and connecting devices.

    Abstract translation: 内燃机气缸盖具有同心的环形通道，以将进气进入燃烧室并除去燃烧产物废气。 这些通道中的每一个通过与发动机气缸同轴的同心环阀的关闭与燃烧室隔离。 提供机械装置以根据发动机凸轮轴的时间来致动阀。 致动机构包括多个阀杆，同心操作板，叉形致动器和连接装置。

    Four-stroke piston engine
    10.
    发明授权
    Four-stroke piston engine 失效
    四冲程活塞发动机

    公开(公告)号：US4450796A

    公开(公告)日：1984-05-29

    申请号：US318738

    申请日：1981-11-06

    Applicant: Josef Schaich

    Inventor： Josef Schaich

    IPC: F01L1/28 ,  F02B1/04 ,  F02B17/00 ,  F02B31/04 ,  F02B75/02 ,  F02M57/04 ,  F02M57/06 ,  F02B3/00

    CPC classification number: F02B17/00 ,  F01L1/285 ,  F02B31/04 ,  F02M57/04 ,  F02M57/06 ,  F02B1/04 ,  F02B2075/027 ,  Y02T10/146

    Abstract: A four-stroke piston engine in which air or a fuel-air mixture is drawn into a cylinder. Fuel may be injected into the air flowing into or already present in the cylinder while a further fuel supply is located on the axis of the cylinder and supplies at least one jet of fuel during the compression stroke, which jet of fuel in cooperation with the fuel-air mixture forms at least one zone of enriched mixture within the cylinder. The piston may have a recess in the upper end into which the fuel nozzle is received when the piston approaches top dead center so that an enriched zone is formed in the recess or in the region of said recess which can be ignited by electrodes disposed adjacent the further fuel supply.

    Abstract translation: 一种四冲程活塞发动机，其中空气或燃料 - 空气混合物被吸入气缸。 燃料可以被注入到流入或已经存在于气缸中的空气中，而另外的燃料供应位于气缸的轴线上并且在压缩冲程期间提供至少一个燃料喷射，该燃料喷射与燃料 空气混合物在气缸内形成至少一个富集混合物区域。 活塞可以在上端具有凹部，当活塞接近上止点时，燃料喷嘴被容纳在其中，使得富集区形成在所述凹部中或在所述凹部的区域中，所述区域可被邻近设置的电极点燃 进一步燃料供应。

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