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    • 3. 发明申请
    • TWO-STROKE THERMAL ENGINE OF A MOTOR VEHICLE, COMPRISING TWISTED INLET PORTS
    • 电动汽车两冲程发动机,包括两个进口口
    • WO2015170020A3
    • 2016-04-28
    • PCT/FR2015050768
    • 2015-03-26
    • RENAULT SAS
    • DELAHAYE LAURENTJUSTET FRÉDÉRICTRIBOTTE PASCAL
    • F02B25/04F02B31/04F02B75/02F02F1/22
    • F02B25/04F02B31/04F02B2075/025F02F1/22Y02T10/146
    • The invention relates to a two-stroke thermal engine comprising at least one axial cylinder (12) having a bore (14) which slidably receives at least one piston (16) and has a plurality of lower peripheral ports (34) capable of being opened or closed by the moving piston (16), which ports are substantially hexahedral in shape, are each defined in the peripheral wall (30) by quadrilateral surfaces (36, 38, 58, 60), comprising upper surfaces (36, 38) which are defined by edges (40, 42, 46, 48), referred to as gas directing edges, characterised in that the gas directing edges (40, 42) of the upper surface (36) form angles (α4ο, α42) with a radial direction (R), which angles are oriented in a first direction and are within a first angular range, and in that the gas directing edges (46, 48) of the lower surface form angles (α46, α4β) with the radial direction (R), which angles are oriented in a second direction, which is opposite the first, and are within a second angular range.
    • 本发明涉及一种二冲程热引擎,其包括至少一个具有可滑动地容纳至少一个活塞(16)并具有能够打开的多个下部周边端口(34)的孔(14)的轴向圆柱体(12) 或活动活塞(16)关闭,这些端口的形状基本上为六面体,各自由四边形表面(36,38,58,60)限定在周壁30内,该四边形表面包括上表面36,38, 由称为气体引导边缘的边缘(40,42,46,48)限定,其特征在于,上表面(36)的气体引导边缘(40,42)形成具有径向的角度(α4o,α42) 方向(R),其角度在第一方向上定向并处于第一角度范围内,并且下表面的气体引导边缘(46,48)与径向方向(R46)成角度(α46,α4β) ),这些角度在与第一方向相反的第二方向上定向并且在第二角度范围内。
    • 4. 发明申请
    • A COMPACT, PORTED CYLINDER CONSTRUCTION FOR AN OPPOSED-PISTON ENGINE
    • 一个紧凑的,用于活塞式发动机的缸体结构
    • WO2015038425A1
    • 2015-03-19
    • PCT/US2014/054235
    • 2014-09-05
    • ACHATES POWER, INC.
    • TEBBE, Michael, S.
    • F02F1/22F02B75/28
    • F02B75/282F02B25/08F02B2075/025F02B2700/03F02F1/20F16J10/04
    • A ported cylinder for an opposed-piston engine has a bore to support movements of a pair of opposed pistons and longitudinally-spaced intake and exhaust ports that are controlled by movements of oppositely-disposed pistons in the bore. The bore includes a central portion where combustion occurs and respective end portions. Each end portion extends from an inner edge of a port to the nearest open end of the cylinder. In the central portion the bore has a standard diameter throughout. The bore has a second, larger diameter in each end portion. When the cylinder liner is cold, the bore diameter transitions continuously in size, from the standard diameter to the larger diameter, in an area running from the central portion to an inner edge of a port. From the inner edge, the bore is of the larger diameter throughout the end portion.
    • 用于相对活塞发动机的移动缸体具有孔,以支撑一对相对的活塞和纵向间隔开的进气和排气口的运动,所述进气和排气口由相对设置的活塞在孔中的运动控制。 孔包括发生燃烧的中心部分和相应的端部。 每个端部从端口的内边缘延伸到气缸的最近的开口端。 在中心部分,孔具有贯穿的标准直径。 孔在每个端部具有第二较大的直径。 当气缸套为冷时,在从中心部分延伸到端口内缘的区域中,孔径从标准直径到较大直径的尺寸连续地转变。 在内边缘处,孔的整个端部的直径较大。
    • 6. 发明申请
    • 2サイクルエンジン
    • 两冲程发动机
    • WO2009093310A1
    • 2009-07-30
    • PCT/JP2008/050867
    • 2008-01-23
    • 新ダイワ工業株式会社松原 泰司服部 真也鈴木 賢司
    • 松原 泰司服部 真也鈴木 賢司
    • F02F3/24F02B25/16F02B25/22F02F1/22
    • F02F3/24F02B25/14F02B25/22F02B2075/025F02F1/22
    •  シリンダ(60)内に装着されたピストン(50)と、燃焼室(40)に通じる排気通路(80)と、クランク室(10)と燃焼室(40)とを連通させる第一掃気通路(20)及び第二掃気通路とを備えた2サイクルエンジン(1)であって、ピストン(50)には、排気通路(80)と各掃気通路(20)とがピストン(50)によって閉塞された状態で、排気通路(80)と第二掃気通路とを連通する連通溝(51)が形成され、第一掃気通路(20)から流入する混合ガスが、第二掃気通路(30)から流入する混合ガスよりも、燃焼室(40)内において排気通路(80)の反対側に流れ込むように構成されている。この構成では、未燃焼ガスが排気される量を大幅に低減させるとともに、燃焼室(40)内から燃焼ガスがスムーズに排気され、燃焼室(40)内における混合ガスの充填量が増加するため、エンジンの出力を高めることができる。
    • 双循环发动机(1)包括安装在气缸(60)中的活塞(50),通向燃烧室(40)的排气通道(80)和第一扫气通道(20)和 允许曲轴箱(10)和燃烧室(40)彼此连通的第二扫气通道(30)。 在所述活塞(50)中,当所述排气通路(80)和所述排气通路(20,30)关闭时,使所述排气通路(80)和所述第二扫气通路相互连通的连通槽(51) 通过活塞(50),从第一扫气通路(20)流入的混合气体的量比从第二扫气通路(30)流入的混合气体的量多,流入与排气通路相反的一侧 80)在燃烧室(40)中。 在这种结构中,未燃烧气体的排出量大大降低,燃烧气体从燃烧室(40)内平稳地排出,燃烧室中填充有增加量的混合气体,因此可以提高发动机输出。
    • 7. 发明申请
    • A CYLINDER FOR A CRANKCASE SCAVENGED INTERNAL COMBUSTION ENGINE
    • 一个起重机SCAVENGED内燃机的气缸
    • WO2005059344A1
    • 2005-06-30
    • PCT/SE2003/002020
    • 2003-12-19
    • AKTIEBOLAGET ELECTROLUXCARLSSON, BoMARTINSSON, PärHOLMDAHL, MikaelOLANDER, Ulf
    • CARLSSON, BoMARTINSSON, PärHOLMDAHL, MikaelOLANDER, Ulf
    • F02F1/22
    • F02B25/22F02B33/02F02B33/04F02B33/44F02F1/04F02F1/22
    • A cylinder (1) for a crankcase scavenged two-stroke engine, comprising a cylinder bore (2) with centre line (12) and on opposite sides of the cylinder located closed transfer ducts (3, 3'), which cylinder (1) has an underside (4) essentially perpendicular towards the cylinder bore (2), intended to be connected to a crankcase (5) in a parting plane (A), and besides an inlet (8) for air/fuel mixture, the cylinder is provided with at least one inlet (9, 9' ) for additional air to the combustion chamber, which inlet for additional air runs through a cylinder wall (11) and via a recess in the piston and a transfer port (6, 6') leads down into the transfer ducts (3, 3'). Especially the transfer ducts (3,3') each have an upper section (3a, 3a') leading from the transfer port (6, 6') and in a tangential direction in relation to the cylinder bore (2) and is followed by an essentially right angled bend (3b, 3b') leading into a lower section (3c, 3c') leading into the parting plane (A), and at least the right-angled bend of each transfer duct is located on opposite sides of an exhaust duct (7) and during at least a part of the right-angled bend (3b, 3b') the transfer ducts approach each other.
    • 一种用于曲轴箱清扫二冲程发动机的气缸(1),包括具有中心线(12)的气缸孔(2)和位于闭合传送管道(3,3')的气缸的相对侧上,该气缸(1) 具有基本上垂直于气缸孔(2)的下侧(4),用于在分型平面(A)中连接到曲轴箱(5),并且除了用于空气/燃料混合物的入口(8)之外,气缸是 设置有至少一个入口(9,9'),用于向燃烧室提供额外的空气,该入口用于附加空气穿过气缸壁(11)并经由活塞中的凹部和传送口(6,6') 引导到传送管道(3,3')。 特别地,传送管道(3,3')各自具有从传送口(6,6')引出并相对于气缸孔(2)沿切线方向的上部(3a,3a'),并且其后是 通向通向分型平面(A)的下部分(3c,3c')的基本上直角的弯曲部(3b,3b'),并且每个传送管道的至少直角弯曲部位于 排气管道(7),并且在直角弯曲部(3b,3b')的至少一部分期间,传送管道彼此接近。
    • 8. 发明申请
    • TWO-STROKE INTERNAL COMBUSTION ENGINE
    • 两冲程内燃机
    • WO01081739A1
    • 2001-11-01
    • PCT/SE2000/000789
    • 2000-04-27
    • F02B25/14F02B25/16F02B25/20F02B25/22F02B33/04F02B63/02F02B75/02F02F1/22F02F3/00F02F3/24
    • F02B63/02F02B25/14F02B33/04F02B2075/025F02F1/22
    • A crankcase scavenged internal combustion engine of two-stroke type (1) having at least one cylinder (15) and at least one air passage arranged between an air inlet (2) and the upper part of a number of scavenging ducts (3, 3') with exhaust orientated scavenging ports (9, 9') located close to the exhaust port (19) of the cylinder. At least one intake orientated scavenging port (14, 14') is located close to the inlet port (33) of the cylinder and is fed by at least one scavenging duct (5, 5'), and the air passage and the scavenging ducts are so arranged that the scavenging ducts (3, 3') can be supplied with and hold so much air that they during the following scavenging process will scavenge essentially nothing but air. The air passage is arranged from an air inlet (2) provided with a restriction valve (4) controlled by at least one engine parameter, e.g. the carburettor throttle control, and the intake orientated scavenging port/s (14, 14') is/are so arranged that it/they begin/s to scavenge the air/fuel-mixture (2) later than the scavenging ports (9, 9') begin to scavenge air.
    • 一种二冲程型(1)的曲轴箱清扫内燃机,具有至少一个气缸(15)和至少一个空气通道,其布置在空气入口(2)和多个扫气管(3,3)的上部之间 ')具有位于气缸的排气口(19)附近的排气导向的扫气口(9,9')。 至少一个进气导向清扫口(14,14')位于气缸的入口(33)附近,并由至少一个扫气管(5,5')供给,空气通道和扫气管 排气管(3,3')可以被供给并保持如此多的空气,使得它们在以下清除过程中基本上仅清除空气。 空气通道从设置有由至少一个发动机参数控制的限制阀(4)的进气口(2)设置,例如, 化油器节气门控制和进气导向清扫口(14,14')被布置成使得它们/ s开始于清空空气/燃料混合物(2)的时间比清扫口(9, 9')开始清空空气。