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    TWO-VALVE ENGINE
    1.
    发明公开
    TWO-VALVE ENGINE 审中-公开

    公开(公告)号：EP3263879A4

    公开(公告)日：2018-03-21

    申请号：EP15891807

    申请日：2015-05-12

    Applicant: YAMAHA MOTOR CO LTD

    Inventor： TANOKURA HAYATO ,  SUZUKI MINORU ,  ITO MASAKI ,  IWAKI YOHEI

    IPC: F02F1/42 ,  F02B23/08 ,  F02B31/00 ,  F02F1/24 ,  F02F3/26

    CPC classification number: F02B23/08 ,  F02B31/00 ,  F02B2023/106 ,  F02B2023/108 ,  F02B2275/40 ,  F02B2275/48 ,  F02F1/242 ,  F02F1/42 ,  F02F1/4235 ,  F02F3/26 ,  Y02T10/125 ,  Y02T10/146

    Abstract: The present teaching provides a two-valve engine configured to suppress occurrence of a combustion noise while improving fuel efficiency. A two-valve engine includes: a crankshaft; a rolling bearing; a piston part; a cylinder part that cooperates with the piston part to define a combustion chamber, the cylinder part including a cylinder head part and a cylinder body part, the cylinder head part having one intake port and one exhaust port, the cylinder body part having a cylinder bore; a fuel injector part; and an ignition device arranged in one of two regions that are defined by dividing the combustion chamber by a straight line passing through a center of the intake port and a center of the exhaust port, wherein the combustion chamber has a non-squish region that is provided in at least a part of a peripheral region of the combustion chamber, and the intake passage is arranged such that the region where the ignition device is not arranged, as well as, the non-squish region are located on a straight line that is an extension of a center line of the intake passage from the center of the intake port, when viewed in the direction of a central axis line of the cylinder bore.

    DIRECT FUEL-INJECTION ENGINE
    3.
    发明公开
    DIRECT FUEL-INJECTION ENGINE 有权
    DIREKTEINSPRITZMOTOR

    公开(公告)号：EP2133535A1

    公开(公告)日：2009-12-16

    申请号：EP08739817.8

    申请日：2008-04-03

    Applicant: Honda Motor Co., Ltd.

    Inventor： SONO, Hiroshi ,  UCHIMOTO, Tatsuya ,  YAMAYA, Yukihisa ,  IKEYA, Kenichiro ,  TAJIMA, Yutaka ,  SHIBATA, Mitsuhiro ,  SASAKI, Nobuhiko

    IPC: F02B23/06 ,  F02B23/00 ,  F02F3/26

    CPC classification number: F02B23/0669 ,  F02B3/06 ,  F02B23/0621 ,  F02B23/0651 ,  F02B23/0696 ,  F02B2275/14 ,  F02B2275/40 ,  Y02T10/123 ,  Y02T10/125

    Abstract: In a cross section in which squish flow from an outer peripheral part of a piston (13) toward a cavity (25) is large due to a width (W2) of a squish area (SA) being large and a squish clearance (C2) being small, a collision angle (α2) at which a fuel injection axis (Li2) collides with the cavity (25) is made large, whereas in a cross section in which squish flow is small due to the width of the squish area (SA) being small and the squish clearance being large, the collision angle at which a fuel injection axis collides with the cavity (25) is made small. This enables a tendency for fuel to flow out to the exterior of the cavity (25) in a cross section where the squish flow is small to be wakened, and a tendency for fuel to flow out to the exterior of the cavity (25) in a cross section where the squish flow is large to be strengthened, thereby making the conditions in which fuel and air are mixed uniform throughout the entire region of the cavity (25).

    Abstract translation: 在挤压区域（SA）大的宽度（W2）和挤压间隙（C2）的情况下，从活塞（13）的外周部到空腔（25）的挤压流动较大的截面中， 燃料喷射轴（Li2）与空腔（25）碰撞的碰撞角度（±2）较小，而在由于挤压区域的宽度而发生挤压流动的横截面中 SA）小且挤压间隙大，燃料喷射轴与空腔（25）碰撞的碰撞角度变小。 这使得燃料在挤压流动小的横截面中流出到空腔（25）的外部趋势以被唤醒，并且燃料流出到空腔（25）的外部的倾向在 其中挤压流动大的加强部分的横截面，从而使空燃料和空气在空腔（25）的整个区域中混合均匀的条件。

    COMBUSTION CHAMBER STRUCTURE OF DIRECT INJECTION TYPE DIESEL ENGINE
    4.
    发明公开
    COMBUSTION CHAMBER STRUCTURE OF DIRECT INJECTION TYPE DIESEL ENGINE 审中-公开
    BRENNKAMMERSTRUKTURFÜRDIREKTEINSPRITZ-DIESELMOTOR

    公开(公告)号：EP1983168A4

    公开(公告)日：2009-12-09

    申请号：EP07706308

    申请日：2007-02-07

    Applicant: HINO MOTORS LTD

    Inventor： IIKUBO SHOTARO ,  NAKAJIMA HIROSHI ,  ADACHI YUSUKE ,  SHIMOKAWA KIYOHIRO

    IPC: F02B23/06 ,  F02B3/06 ,  F02F3/26

    CPC classification number: F02B23/0696 ,  F02B23/0672 ,  F02B23/0693 ,  F02B2275/40 ,  Y02T10/125

    Abstract: A combustion chamber structure for a direct injection diesel engine is provided which can increase recirculated amount of exhaust gas while avoiding generation of black smoke and deterioration of fuel efficiency as much as possible. Disclosed is a combustion chamber structure for a direct injection diesel engine having a cavity 10 on a top surface of a piston 9. The cavity is concave to provide a majority of the combustion chamber. Fuel is injected from a center of a cylinder top radially into an inner periphery of the cavity 10 to self-ignite. A depression 24 is formed at an outer periphery of the cavity 10 and is sunken relative to the top surface of the piston 9 to provide a step. The depression 24 has a bottom with an outer periphery gradually rising radially outwardly in modestly curved surface to the top surface of the piston 9. The inlet lip 11 is formed at a position lower than the top surface of the piston 9 by an inner periphery of the bottom of the depression 24 and a combustion chamber wall 12 rising from a bottom of the cavity 10.

    Abstract translation: 提供了一种用于直喷柴油发动机的燃烧室结构，其可以增加排气的再循环量，同时尽可能避免产生黑烟和燃料效率的劣化。 公开了一种用于直喷式柴油发动机的燃烧室结构，其在活塞9的顶表面上具有空腔10.空腔是凹形的，以提供燃烧室的大部分。 燃料从气缸顶部的中心径向注入空腔10的内周边以自燃。 凹部24形成在空腔10的外周，相对于活塞9的上表面下沉，形成台阶。 凹部24具有底部，其外周在径向向外逐渐向适当弯曲的表面升高到活塞9的顶表面。入口唇缘11形成在比活塞9的顶表面低的位置处， 凹陷24的底部和从空腔10的底部上升的燃烧室壁12。

    Fuel-injected internal combustion engine with improved combustion
    9.
    发明公开
    Fuel-injected internal combustion engine with improved combustion 失效
    Brennstoffeinspritzbrennkraftmaschine mit verbesserter Verbrennung

    公开(公告)号：EP0756075A1

    公开(公告)日：1997-01-29

    申请号：EP96305312.9

    申请日：1996-07-19

    Applicant: Outboard Marine Corporation

    Inventor： Haman, David F. ,  Craft, Todd D. ,  Binversie, Gregory J.

    IPC: F02B61/04 ,  F02B3/02 ,  F02B19/12

    CPC classification number: F02B61/045 ,  F02B3/02 ,  F02B23/101 ,  F02B23/104 ,  F02B75/22 ,  F02B2023/102 ,  F02B2075/025 ,  F02B2075/125 ,  F02B2075/1824 ,  F02B2275/40 ,  F02F3/26 ,  Y02T10/12 ,  Y02T10/123 ,  Y02T10/125

    Abstract: An internal combustion engine includes an engine block defining a cylinder 46 having a longitudinal axis 66, and a piston 90 reciprocally movable in the cylinder 46 along the axis 66, the piston 90 having an upper surface 98. The cylinder head 110 includes a lower surface portion 114 closing the upper end of the cylinder 46 and extending generally perpendicularly to the axis 66 and having therein an upwardly extending recess 122. The lower end of the recess 122 has an area in a plane perpendicular to the axis 66 which is equal to approximately one-fifth of the cross-sectional area of the cylinder 46, and the height of the recess 122 is equal to at least one-third of the cylinder diameter. A fuel injector 126 is supported relative to the cylinder head 110 for injecting fuel into the recess 122, and a spark plug 142 is supported relative to the cylinder head 110 and extends into the recess 122 for creating a spark.

    Abstract translation: 内燃机包括限定具有纵向轴线66的气缸46的发动机缸体和沿着轴线66在气缸46中往复运动的活塞90，活塞90具有上表面98.气缸盖110包括下表面 部分114关闭气缸46的上端并且大致垂直于轴线66延伸并且在其中具有向上延伸的凹部122.凹部122的下端具有垂直于轴线66的平面中的面积，该面积等于大致 圆筒46的横截面面积的五分之一，凹部122的高度等于圆筒直径的至少三分之一。 燃料喷射器126相对于气缸盖110被支撑，用于将燃料喷射到凹部122中，并且火花塞142相对于气缸盖110被支撑并且延伸到凹部122中以产生火花。

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