High efficiency dual cycle internal combustion engine with steam power recovered from waste heat
    1.
    发明授权
    High efficiency dual cycle internal combustion engine with steam power recovered from waste heat 有权
    具有从废热回收的蒸汽功率的高效率双循环内燃机

    公开(公告)号:US08109097B2

    公开(公告)日:2012-02-07

    申请号:US12387113

    申请日:2009-04-28

    摘要: A high efficiency combined cycle internal combustion and steam engine includes a cylinder with a combustion chamber outward of a piston, a cylinder cap slideably mounted within the piston and a steam expansion chamber inside the piston. The cap can be heated to reduce condensation of steam. Steam remaining when a steam exhaust valve closes can be recompressed prior to admitting the next charge of steam. One valve or a pair of steam inlet valves connected in series act in cooperation to help maximize efficiency. The amount of steam admitted each stroke is regulated by shifting the phase of one steam admission valve of a pair to vary their overlap for determining the steam mass admitted each cycle. Other valves balance steam displacement with the steam generator output to use steam more efficiently.

    摘要翻译: 一种高效率的联合循环内燃机和蒸汽发动机包括一个具有活塞外部的燃烧室的气缸,可滑动地安装在活塞内的汽缸盖和活塞内部的蒸汽膨胀室。 可以加热盖子以减少蒸汽的冷凝。 在蒸汽排气阀关闭时剩余的蒸汽可以在进行下一次蒸汽加注之前重新压缩。 串联连接的一个阀门或一对蒸汽入口阀协同作用,以最大限度地提高效率。 通过移动一对蒸汽进入阀的相位来调节每冲程进入的蒸汽量,以改变它们的重叠,以确定每个循环进入的蒸汽质量。 其他阀门平衡蒸汽排量与蒸汽发生器输出,以更有效地使用蒸汽。

    High efficiency dual cycle internal combustion engine with steam power recovered from waste heat
    2.
    发明申请
    High efficiency dual cycle internal combustion engine with steam power recovered from waste heat 有权
    具有从废热回收的蒸汽功率的高效率双循环内燃机

    公开(公告)号:US20090205338A1

    公开(公告)日:2009-08-20

    申请号:US12387113

    申请日:2009-04-28

    IPC分类号: F01K17/00

    摘要: A high efficiency combined cycle internal combustion and steam engine includes a cylinder having a piston mounted for reciprocation therein with an internal combustion chamber outward of the piston, a fixed cylinder cap sealingly and slideably mounted within the piston and a steam expansion/recompression chamber inside the piston adjacent the cylinder cap. The cylinder cap can be unheated or heated externally to reduce condensation of steam entering the steam chamber from a steam generator fired by waste combustion heat. Steam remaining in the cylinder when a steam exhaust valve closes at the top center position is recompressed during an inward stroke of the piston up to admission pressure prior to admitting the next charge of steam. One valve or a pair of retractable steam inlet valves connected in series within the cylinder cap act in cooperation with steam recompression and clearance volume to achieve an effective zero steam chamber clearance and a gain in mean Rankine cycle temperature to maximize efficiency. The amount of steam admitted each outward stroke is continuously regulated, e.g. by shifting the phase of one steam admission valve of a pair to vary their overlap for determining the steam mass admitted during each cycle to reduce specific fuel consumption. Other valves balance steam displacement with the steam generator output to use steam more efficiently. Engine coolant can be evaporated in a combustion chamber cooling jacket to form steam which is then superheated in a combustion exhaust manifold.

    摘要翻译: 一种高效率的联合循环内燃机和蒸汽机包括一个气缸,该气缸具有安装成往复运动的活塞,内部燃烧室位于活塞的外部,固定的气缸盖可密封地和可滑动地安装在活塞内,以及一个蒸汽膨胀/再压缩室 活塞靠近气缸盖。 气缸盖可以不加热或从外部加热,以减少通过废燃烧热量燃烧的蒸汽发生器进入蒸汽室的蒸汽冷凝。 当蒸汽排气阀在顶部中心位置关闭时,在气缸中残留的蒸汽在进入下一次蒸汽之前在活塞的向内冲程期间被再压缩直到进入压力。 在气缸盖内串联连接的一个阀门或一对可伸缩蒸汽入口阀与蒸汽再压缩和间隙容积配合起来,以实现有效的零蒸汽室间隙和增加平均兰金循环温度以最大化效率。 每个向外冲程进入的蒸汽量被连续调节,例如, 通过改变一对蒸汽入口阀的相位来改变其重叠,以确定在每个循环期间允许的蒸汽质量以减少特定燃料消耗。 其他阀门平衡蒸汽排量与蒸汽发生器输出,以更有效地使用蒸汽。 发动机冷却剂可以在燃烧室冷却套中蒸发以形成蒸汽,然后在燃烧排气歧管中过热。

    Internal combustion engine with auxiliary steam power recovered from waste heat
    3.
    发明授权
    Internal combustion engine with auxiliary steam power recovered from waste heat 有权
    具有从废热回收的辅助蒸汽动力的内燃机

    公开(公告)号:US07997080B2

    公开(公告)日:2011-08-16

    申请号:US12075042

    申请日:2008-03-07

    摘要: A combination internal combustion and steam engine includes a cylinder having a piston mounted for reciprocation therein with an internal combustion chamber and a steam chamber in the cylinder adjacent the piston and at least one steam exhaust port positioned to communicate with the steam chamber through the wall of the cylinder for exhausting steam at a location in the cylinder wall adjacent to an engine cylinder cap surface that is heated externally to assist in reducing chilling or condensation of steam entering the steam chamber from a boiler fired by waste combustion heat. The invention also permits steam admitted from a steam chest jacketing the cylinder cap to be exhausted from the engine when the steam chamber is in an expanded state whereupon residual steam is then recompressed prior to admitting the next charge of steam with the stream in the steam chamber being heated directly by the combustion chamber as well as by heat from the steam chest. An I.C. exhaust powered heater is a part of an I.C. exhaust manifold which functions as an afterburner with supplemental air injection for promoting combustion of unburned exhaust constituents to superheat steam that is piped through it to the steam chest. The invention provides valves for balancing steam engine displacement with boiler output and for cylinder compounding with a boiler, heat exchange and control arrangement for efficiently recovering waste heat.

    摘要翻译: 组合式内燃和蒸汽发动机包括一个气缸,其具有安装成往复运动的活塞,内部燃烧室和气缸中邻近活塞的蒸汽室以及至少一个蒸汽排气口,定位成与蒸汽室相通 用于在与外部加热的发动机气缸盖表面相邻的气缸壁中的位置处排出蒸汽的气缸,以帮助减少从由废燃烧热量燃烧的锅炉进入蒸汽室的蒸汽的冷却或冷凝。 本发明还允许从蒸汽箱中吸入的蒸汽在蒸汽室处于膨胀状态时从发动机排出,随后在蒸汽室内的流进入下一次蒸汽之前将剩余蒸汽再次压缩 被燃烧室直接加热以及来自蒸汽箱的热量。 一个I.C. 排气加热器是IC的一部分。 排气歧管,其用作补充燃料器,其具有用于促进未燃烧排气成分燃烧以过热蒸汽的补充空气注入,该蒸汽通过其被蒸发通过蒸汽箱。 本发明提供了用于平衡蒸汽发动机排量与锅炉输出和用于与锅炉混合的气缸的阀,用于有效地回收废热的热交换和控制装置。