公开(公告)号：US20160215707A1

公开(公告)日：2016-07-28

申请号：US15004149

申请日：2016-01-22

Applicant: Mazda Motor Corporation

Inventor： Toru Miyamoto ,  Masahisa Yamakawa ,  Kazuhiro Nagatsu ,  Takashi Kaminaga ,  Mingzhao Xie ,  Shintaro Okada

IPC: F02D19/12 ,  F02B9/02 ,  F02M25/10

CPC classification number: F02D19/12 ,  F02B23/101 ,  F02D13/0203 ,  F02D13/0265 ,  F02D35/028 ,  F02D41/0025 ,  F02D41/3041 ,  F02D2200/0612 ,  F02F3/26 ,  F02M25/10 ,  F02M25/12 ,  F02M26/25 ,  F02M27/04

Abstract: A control device compression-ignition type engine that compression-ignites an air-fuel mixture in cylinders by introducing ozone into the cylinders at a predetermined operating range is provided. The control device detects a first ignition timing of an air-fuel mixture when introducing an intake of a first ozone concentration into the cylinders, detects a second ignition timing of the air-fuel mixture when introducing an intake of a second ozone concentration that differs from the first ozone concentration, and determines the fuel ignition ability based on a difference between the detected first ignition timing and the detected second ignition timing.

Abstract translation: 提供了一种控制装置压燃式发动机，其通过在预定的工作范围内将臭氧引入气缸中来压缩点燃气缸中的空气燃料混合物。 控制装置在向气缸中引入第一臭氧浓度的摄入时检测空气 - 燃料混合物的第一点火正时，当引入不同于第二臭氧浓度的第二臭氧浓度的摄入时，检测空气 - 燃料混合物的第二点火正时 第一臭氧浓度，并且基于检测到的第一点火正时和检测到的第二点火正时之间的差来确定燃料点火能力。

公开(公告)号：US20160201631A1

公开(公告)日：2016-07-14

申请号：US14979364

申请日：2015-12-22

Applicant: Mazda Motor Corporation

Inventor： Takaaki Nagano ,  Masahisa Yamakawa ,  Takashi Youso ,  Kazuhiro Nagatsu ,  Tatsuya Fujikawa ,  Wu Zhang ,  Takashi Kaminaga ,  Toru Miyamoto ,  Shintaro Okada ,  Yuki Hisadome

IPC: F02M61/14 ,  F02F3/28

CPC classification number: F02M61/14 ,  F02F3/28

Abstract: A combustion chamber structure for an engine is provided. The combustion chamber structure includes a piston formed with a downward dented cavity at a central part of an upper surface thereof, and a fuel injector provided above the piston and on an extended line of a central axis of the piston, the fuel injector changing an injection timing of fuel on a compression stroke according to an operating state of the engine. A fuel injection angle of the fuel injector is designed to satisfy conditions in which the fuel is injected into the cavity and in which a fuel spray collision distance defined from a fuel injection position of the fuel injector to a collision position of the fuel with the cavity is longer than a breakup length defined from the fuel injection position of the fuel injector to a position where an initial breakup of the fuel occurs.

Abstract translation: 提供了一种用于发动机的燃烧室结构。 燃烧室结构包括在其上表面的中心部分处形成有向下凹陷腔的活塞和设置在活塞上方并在活塞的中心轴线的延长线上的燃料喷射器，燃料喷射器改变喷射 根据发动机的运行状态，在压缩冲程上的燃料定时。 燃料喷射器的燃料喷射角被设计成满足将燃料喷射到空腔中并且燃料喷射碰撞距离从燃料喷射器的燃料喷射位置到燃料与空腔的碰撞位置的条件 长于从燃料喷射器的燃料喷射位置到发生燃料的初始分解的位置的分解长度。