公开(公告)号：US20170009618A1

公开(公告)日：2017-01-12

申请号：US15108582

申请日：2014-03-10

Applicant: Dalian University of Technology

Inventor： Jingchen CUI ,  Wuqiang LONG ,  Jiangping TIAN ,  Hua TIAN ,  Tianhao YANG ,  Danting WANG

IPC: F01L13/06 ,  F01L1/344 ,  F02B75/18 ,  F01L1/047

CPC classification number: F01L13/06 ,  F01L1/047 ,  F01L1/3442 ,  F01L9/025 ,  F01L13/065 ,  F01L2001/34426 ,  F01L2820/03 ,  F01L2820/033 ,  F01L2820/034 ,  F02B75/18 ,  F02B2075/1824

Abstract: A modularized multifunctional variable valve actuation system for use in a six-cylinder internal combustion engine. The system mainly comprises fuel supply modules (5 and 6), a phase limiting module (2), a mode selection module (22), control modules (3 and 4), a fuel transfer module (7), and a valve actuation module (1). The phase limiting module (2), with an extremely simple structure, implements a valve closing process not limited by operational phases of the fuel supply modules (5 and 6), and at the same time, requires only two fuel supply modules (5 and 6) and two two-way two-position valves (141, 142, and 143) to implement a continuously variable valve event, and requires only two fuel supply modules (5 and 6), two three-way two-position valves (191, 192, and 193), and one two-way two-position valve (141, 142, and 143) to implement a fully variable valve event, thus greatly reducing costs. The mode selection module (22) implements flexible conversion of an actuation mode and a braking mode of an internal combustion engine. Components of the system are functionally independent, modules are selected on the basis of requirements such as a gas distribution mode, the flexibility of valve operations, and the presence or absence of the braking mode, and the need for altering other modules is obviated. Thus, the system has a great suitability and a wide range of applications.

Abstract translation: 一种用于六缸内燃机的模块化多功能可变气门驱动系统。 该系统主要包括燃料供应模块（5和6），相位限制模块（2），模式选择模块（22），控制模块（3和4），燃料转移模块（7）和阀门致动模块 （1）。 具有非常简单的结构的相位限制模块（2）实现了不限于燃料供应模块（5和6）的操作阶段的阀关闭过程，并且同时仅需要两个燃料供应模块（5和 6）和两个双向两位置阀（141,142和143），以实现无级变速阀事件，并且仅需要两个燃料供应模块（5和6），两个三通两位置阀（191 ，192和193）和一个双向两位置阀（141,142和143），以实现全可变阀事件，从而大大降低成本。 模式选择模块（22）实现内燃机的致动模式和制动模式的灵活转换。 系统的组件在功能上是独立的，模块是基于诸如气体分配模式，阀门操作的灵活性以及存在或不存在制动模式的要求而被选择的，并且不需要改变其他模块。 因此，该系统具有很大的适用性和广泛的应用。

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：US20210404356A1

公开(公告)日：2021-12-30

申请号：US17281214

申请日：2019-10-08

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Wuqiang LONG ,  Ge XIAO ,  Hua TIAN ,  Jingchen CUI

IPC: F01N3/022 ,  B01D46/24

Abstract: A particulate trap filter body has asymmetrical channels. The cross-sectional shape of the asymmetrical channel structure includes a combination of hexagonal, square and triangular shapes. The hexagonal channel and the triangular channel act as inlet channel, and the square channel acts as outlet channel. Compared with the traditional symmetrical filter body structure, the inlet channel volume and filter body wall area can be effectively increased by more than 30%, which means that with capturing the same amount of particles, the particle cake layer formed on the wall surface is thinner. The limiting carbon load of the new channel structure is increased by more than 30%, having a very positive effect on reducing the regeneration frequency and prolonging the service life of the trap.

公开(公告)号：US20180128158A1

公开(公告)日：2018-05-10

申请号：US15865296

申请日：2018-01-09

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Wuqiang LONG ,  Hua TIAN ,  Jiangping TIAN ,  Yao FU ,  Jingchen CUI ,  Kai SHENG ,  Ping YI ,  Kunpeng QI ,  Qiang ZHANG ,  Yicong WANG

IPC: F02B23/06 ,  F02B1/12 ,  F02F3/28 ,  F02F1/24

CPC classification number: F02B23/0651 ,  F02B1/12 ,  F02F1/242 ,  F02F3/28 ,  Y02T10/125

Abstract: A diesel combustion system including a piston, an annular impinging block, and a combustion chamber. The combustion chamber is divided by the annular impinging block into an upper chamber and a lower chamber. The annular impinging block includes a lower guide surface that is adjacent to the lower chamber and that extends from a trough line connected to the piston to a crest line. The ratios among the inner diameter of the top of the piston, the outer diameter of the top of the piston, the diameter of the trough line, and the diameter of the crest line define the shape of the combustion chamber which leads to increased rate of combustion, reduced soot emission, and increased fuel efficiency.