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    • 93. 发明申请
    • CYLINDER HEAD WITH COUNTERSINK
    • 圆筒头与COUNTERSINK
    • WO2014026763A1
    • 2014-02-20
    • PCT/EP2013/002435
    • 2013-08-13
    • MWM GMBH
    • BITTNER, JürgenBÖWING, RobertBRAUN, MichaelSCHÄFER, Friedrich
    • F01L3/06F02B31/00F02F1/42F02B23/10
    • F02B31/00B23P15/10F01L1/26F01L3/06F01L3/22F01L2103/00F02B19/12F02B2031/006F02B2275/32F02D13/0269F02F1/4214F02F1/4235Y02T10/142Y02T10/146Y10T29/49231
    • The present disclosure refers to a cylinder head (1) of a static spark-ignited gas engine. The cylinder head may comprise at least two exhaust ports (7.1, 7.1') and at least two inlet ports (1.1, 1. 1') which run to a bottom side (1.3) of the cylinder head (1). The cylinder head (1) have at least one cylinder axis (9) and each inlet port (1.1, 1. 1') may have a valve seat (2, 2') for inlet valves. Each of said valve seats (2, 2') may have a center axis (2.1, 2. 1'), with at least one inlet port (1.1, 1. 1') having a countersink (3, 3') in the border area of the bottom side (1.3) of the cylinder head (1). The countersink (3, 3') may have an offset axis (3.1, 3.1') shifted from said center axis (2.1, 2. 1') effecting a swirl flow. A radius RF, RF' of said countersink (3, 3') may have a point M, M', said point M, M' being a radial maximum with reference to the center axis (2.1, 2. 1'). The radius RF, RF' and a straight line MG, MG' may include an angle φ. The straight line MG, MG' may connect the cylinder axis (9) with the center axis (2.1, 2. 1') of said valve seat (2, 2') of said inlet port (1.1, 1. 1'). The angle φ may fulfill the following condition: 70°
    • 本发明涉及一种静电火花点燃气体发动机的气缸盖(1)。 气缸盖可以包括至少两个排气口(7.1,7.1')和至少两个进入气缸盖(1)的底侧(1.3,1.1')的入口端口(1.1,1.1')。 气缸盖(1)具有至少一个气缸轴线(9),并且每个入口端口(1.1,1.1')可具有用于入口阀的阀座(2,2')。 每个所述阀座(2,2')可以具有中心轴线(2.1,2.1'),其中至少一个入口端口(1.1,1.1')在所述中心轴线 气缸盖(1)的底面(1.3)的边界区域。 埋头孔(3,3')可能具有从所述中心轴线(2.1,2.1')偏移的偏移轴线(3.1,3.1'),从而产生涡流。 所述埋头孔(3,3')的半径RF,RF'可以具有点M,M',所述点M,M'相对于中心轴线(2.1,2.1')是径向最大值。 半径RF,RF'和直线MG,MG'可以包括角度&phgr。 直线MG,MG'可以将气缸轴线(9)与所述入口(1.1,1.1')的所述阀座(2,2')的中心轴线(2.1,2.1')连接。 角&phgr 可以满足以下条件:70°<=&phis; <= 110°。 本公开还涉及一种制造本文公开的类型的气缸盖(1)的方法和操作静态火花点火燃气发动机的方法。
    • 98. 发明申请
    • ENGINE COMBUSTION SYSTEM
    • 发动机燃烧系统
    • WO99030016A1
    • 1999-06-17
    • PCT/SE1998/002102
    • 1998-11-20
    • F01L1/00F02B23/08F02B23/10F02B31/00F02B75/12F02F1/24F02F3/26F02B31/04
    • F02B23/08F02B23/10F02B31/00F02B2023/106F02B2075/125F02B2275/48F02F3/26F02F2001/245Y02T10/123Y02T10/125Y02T10/146
    • A combustion system for engines having at least one cylinder (10). The system may e.g. consist of an exhaust duct, an intake duct (20a), a cylinder chamber (30), a fuel injector for injecting fuel into the cylinder chamber (30), a piston (40) performing a reciprocating motion in the cylinder chamber (30), and a valve (70) for intake and one for exhaust. The intake duct (20a) is connected to the cylinder chamber (30) and said intake valve (70) is operative to open and close, respectively, the connection between the intake duct (20a) and the cylinder chamber (30). The crown (60) of the piston (40) is provided with a cavity (50), shaped so as to enhance the generation of tumbling inside the cylinder chamber (30) during the intake stroke and to contribute to the breakdown during the compression stroke inside the cylinder chamber (30). The intake duct (20a) has an intermittent curve coinciding with the direction of the valve (70), where a longitudinal axle (110) of the valve (70) is angled towards the top (100) of the cylinder chamber (30), for generating the tumbling effect inside the cylinder chamber (30).
    • 一种用于具有至少一个气缸(10)的发动机的燃烧系统。 该系统可以例如 包括排气管道,进气管道(20a),气缸室(30),用于将燃料喷射到气缸室(30)中的燃料喷射器,在气缸室(30)中执行往复运动的活塞(40) ,以及用于进气的阀(70)和用于排气的阀(70)。 吸气管(20a)连接到气缸室(30),进气门(70)分别操作以打开和关闭进气管道(20a)和气缸室(30)之间的连接。 活塞(40)的表冠(60)设置有空腔(50),其形状为在进气冲程期间增强汽缸室(30)内的翻转的产生,并有助于在压缩冲程期间的击穿 在气缸室(30)内。 进气管(20a)具有与阀(70)的方向一致的间歇曲线,其中阀(70)的纵向轴(110)朝向气缸室(30)的顶部(100)成角度, 用于在汽缸室(30)内产生翻滚效果。