公开(公告)号：US20160363042A1

公开(公告)日：2016-12-15

申请号：US15245215

申请日：2016-08-24

Applicant: Dalian University of Technology

Inventor： Wuqiang LONG ,  Shuang HE ,  Jiangping TIAN ,  Hua TIAN ,  Baoguo DU ,  Liyan FENG ,  Yao FU ,  Ping YI

IPC: F02B23/06

CPC classification number: F02B23/0624 ,  F02B23/0621 ,  F02B23/0651 ,  F02B23/0669 ,  F02B23/0696 ,  Y02T10/125

Abstract: A combustion chamber of diesel engine. The diesel engine includes a cylinder head, a cylinder sleeve, and a piston. The cylinder head, the cylinder sleeve, and the piston form the combustion chamber. The combustion chamber includes a headspace; a central part; and a collision belt. The collision belt includes a collision surface, an upper guide surface, and a lower guide surface. The collision belt is configured to connect the headspace and the central part. The collision surface is an inclined surface, a convex surface, or a concave surface. The first tapered surface includes a second inclined surface, a second curved surface, and a third inclined surface; the second tapered surface includes a fourth inclined surface, a third curved surface, and a second concave surface; the first curved surface includes a second convex surface and a third concave surface.

Abstract translation: 柴油机燃烧室。 柴油发动机包括气缸盖，气缸套和活塞。 气缸盖，气缸套和活塞形成燃烧室。 燃烧室包括顶部空间; 中心部分 和碰撞带。 碰撞带包括碰撞面，上引导面和下引导面。 碰撞带被配置为连接顶部空间和中心部分。 碰撞面是倾斜面，凸面或凹面。 第一锥形表面包括第二倾斜表面，第二弯曲表面和第三倾斜表面; 第二锥形表面包括第四倾斜表面，第三弯曲表面和第二凹入表面; 第一曲面包括第二凸面和第三凹面。

公开(公告)号：US20220186677A1

公开(公告)日：2022-06-16

申请号：US17310358

申请日：2019-12-17

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Liyan FENG ,  Min PAN ,  Wenjing QU ,  Zhen GONG ,  Zhengran YU ,  Hongjie SUN ,  Zixin WANG ,  Qiang LIU

IPC: F02F1/20 ,  F01M11/02 ,  F02F1/22

Abstract: Provided is a method for preventing the accumulation of cylinder oil at scavenging ports of low-speed marine engines. An oil passage is provided on a cylinder wall inside a cylinder. The oil passage includes multiple oil storage grooves processed in a circumferential direction of the cylinder wall. The oil passage is formed by obliquely extending from the inner side of the cylinder wall to the outside of the cylinder in a radial direction of the cylinder. The scavenging ports are uniformly distributed in a circumferential direction of the cylinder wall, and each of the oil storage grooves is correspondingly processed at an upper portion of the scavenging port upper edge of the scavenging port. Each of the oil storage grooves has a shape matching the curved surface of the scavenging port upper edge.