A swirl-conserving combustion chamber construction for opposed-piston engines

• Main Author: Redon Fabien G
• Format: Patent
• Language: Chinese; English
• Published: 03.08.2016
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENTTYPE, e.g. STEAM ENGINES; MECHANICAL ENGINEERING; STEAM ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

A combustion chamber construction for opposed-piston engines includes an elongated, bilaterally symmetrical shape referenced to a major axis and a pair of injection ports located on the major axis when the pistons are near respective top center positions. The combustion chamber is defined between a bowl in the end surface of a first piston of a pair of pistons and mirrored ridges protruding from the end surface of a second piston of the pair. Each ridge includes a central portion that curves toward a periphery of the end surface of the second piston and which transitions to flanking portions that curve away from the periphery. The ridge configuration imparts a substantially spherical configuration to a central portion of the combustion chamber where swirling motion of charge air is conserved. 当活塞靠近各自的上止点位置时，用于对置活塞发动机的燃烧室结构包括相对于主轴线和位于主轴线上的对喷射端口的细长的两侧对称形状。燃烧室被限定在对活塞的第活塞的端面中的碗状物和从所述对活塞的第二活塞的端面突出的镜像脊之间。每个脊包括朝向第二活塞的端面的外围弯曲的中心部分且过渡到远离外围弯曲的侧翼部分。脊配置赋予燃烧室的中心部分大体球形配置，在该中心部分增压空气的漩涡运动被保存。