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1. 发明授权

US5239959A Isolated combustion and diluted expansion (ICADE) piston engine 失效
标题翻译：隔离燃烧和稀释膨胀（ICADE）活塞发动机
公开(公告)号：US5239959A
公开(公告)日：1993-08-31
申请号：US901539
申请日：1992-06-22
申请人： John L. Loth , Eric Loth , Francis Loth
发明人： John L. Loth , Eric Loth , Francis Loth
IPC分类号： F02B19/02 , F02B41/00 , F02B77/11
CPC分类号： F02B77/11 , F02B19/02 , F02B41/00 , Y02T10/125 , Y02T10/14
摘要： The "Isolated Combustion and Dilution Expansion (ICADE) Engine", is a piston/cylinder arrangement used primarily for the compression of air and the expansion of diluted hot combustion products. Fuel injection and rapid combustion take place inside a separate combustion chamber, using a near stoichiometric mixture. The combustion pressurization provides the pressure needed to accelerate the combustion products tangentially into the donut shaped cavity formed by the piston/cylinder clearance. There they establish a vortex which enhances rapid mixing, rapid cooling to quench NO.sub.x forming reactions and to temporarily store the kinetic energy of the combustion products to limit the combustion pressure peak acting on the piston surface. The tangential entry also permits detonation combustion without normal shock reflections on the piston surface, thus preventing "knock". Only during the compression stroke, is the combustion chamber isolated from the piston/cylinder arrangement, by a valve with "controlled leakage". During the compression stroke, this "leaky valve" keeps the combustion chamber pressure lower than the pressure inside the cylinder. This controlled pressure difference serves to: prevent fuel from escaping into the cylinder, produce good fuel mixing with combustion air, permits the use of low octane fuel at moderate compression ratio inside the combustor, while the cylinder operates at high compression ratio for high thermal efficiency. Power level control is obtained by modulating the "leaky valve" to regulate the supply of combustion air, fuel flow control is separate. This configuration eliminates the need for a cylinder intake throttle valve.
摘要翻译： “隔离燃烧和稀释膨胀（ICADE）发动机”是主要用于压缩空气和稀释热燃烧产物的膨胀的活塞/气缸装置。燃料喷射和快速燃烧在独立的燃烧室内进行，使用接近化学计量的混合物。燃烧加压提供了将燃烧产物切向加速到由活塞/气缸间隙形成的环形空腔中所需的压力。在那里，它们建立了一种涡流，可增强快速混合，快速冷却以淬灭NOx形成反应，并临时储存燃烧产物的动能，以限制作用在活塞表面上的燃烧压力峰值。切向进入也允许爆炸燃烧而没有在活塞表面上的正常冲击反射，从而防止“敲击”。只有在压缩冲程期间，燃烧室是通过具有“受控泄漏”的阀与活塞/汽缸装置隔离的。在压缩冲程期间，这个“泄漏阀”使燃烧室压力保持在气缸内部的压力以下。该控制压力差用于：防止燃料泄漏到气缸中，产生与燃烧空气混合的良好燃料，允许在燃烧器内部以中等压缩比使用低辛烷值燃料，同时气缸以高压缩比运行以获得高的热效率。功率电平控制通过调节“泄漏阀”来调节燃烧空气的供应，燃料流量控制是分开的。该配置消除了对气缸进气节流阀的需要。

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