公开(公告)号：US20220018280A1

公开(公告)日：2022-01-20

申请号：US17488992

申请日：2021-09-29

申请人： Ibrahim Hanna

发明人： Ibrahim Hanna

IPC分类号： F02B33/14 ,  F02B41/06

摘要： A mechanical engine cylinder system, includes a cylinder, an occupying structure with a cavity, and a crankshaft piston, the cylinder having a dedicated compression space and a dedicated combustion space, the occupying structure having a primary combustion space utilized during an early stage of a power stroke, wherein combustion pressure applied to the crankshaft piston during the power stroke is applied to a smaller surface area of the crankshaft piston during an early stage of the power stroke and to a larger surface area of the crankshaft piston during a later stage of the power stroke, the combustion pressure applied to the occupying structure applies a net-force to the occupying structure in the direction of the crankshaft piston during the early stage of the power stroke, and in the opposite direction of the crankshaft piston during the later stage of the power stroke.

公开(公告)号：US20160090900A1

公开(公告)日：2016-03-31

申请号：US14782376

申请日：2014-04-04

申请人： OSP ENGINES LIMITED

发明人： Jean-Pierre Pirault ,  Ali Veshagh

IPC分类号： F02B33/14 ,  F02B75/02 ,  F02B75/18 ,  F02B75/28

CPC分类号： F02B33/14 ,  F01B7/14 ,  F02B25/08 ,  F02B75/02 ,  F02B75/18 ,  F02B75/282 ,  F02B2075/025

摘要： With reference to FIG. 2, the invention relates to an opposed stepped piston two-stroke engine comprising at least a first and a second cylinder, wherein the air piston is a stepped piston providing a first air transfer piston that expands and compresses a first air transfer volume to deliver air from the first air transfer volume to an air transfer system, and the exhaust piston is a stepped piston providing a second air transfer piston that expands and compresses a second air transfer volume to deliver air from the second air transfer volume to the air transfer system, each of the first and second air transfer volumes having an air inlet for receiving air; and wherein the air transfer system provides fluid connection between the respective first air transfer volume of each cylinder and the air port of another respective cylinder, via respective first air transfer conduits, and fluid connection between the respective second air transfer volume of each cylinder and the air port of the other respective cylinder, via respective second air transfer conduits, wherein the drive system is configured, for each cylinder, to have a predetermined phase angle such that one of the exhaust piston and air piston is driven before the other piston, causing delivery of air from its respective air transfer volume to the air transfer system before delivery of air occurs from the other of the air transfer volumes.

摘要翻译： 参考图1。 如图2所示，本发明涉及包括至少第一和第二气缸的相对的阶梯式活塞二冲程发动机，其中空气活塞是阶梯式活塞，其提供第一空气传送活塞，其膨胀和压缩第一空气传送体积以输送空气 从第一空气传送体积到空气传送系统，并且排气活塞是提供第二空气传送活塞的阶梯式活塞，其膨胀和压缩第二空气传送体积以将空气从第二空气传送体积输送到空气传送系统， 第一和第二空气传送体积中的每一个具有用于接收空气的空气入口; 并且其中所述空气传送系统通过相应的第一空气传送导管在每个气缸的相应的第一空气传送体积和另一个相应气缸的空气口之间提供流体连接，并且每个气缸的相应的第二空气传送体积与 通过相应的第二空气传输导管，另一个气缸的空气端口，其中驱动系统被构造成用于每个气缸，以具有预定的相位角，使得排气活塞和空气活塞中的一个在另一个活塞之前被驱动，引起 发生空气从其各自的空气传送体积传送到空气传送系统，从空气传送量的另一个发生。

公开(公告)号：US5884590A

公开(公告)日：1999-03-23

申请号：US933878

申请日：1997-09-19

申请人： Mihai C. Minculescu

发明人： Mihai C. Minculescu

IPC分类号： F02B33/10 ,  F02B33/14 ,  F02B75/02 ,  F02B75/26

CPC分类号： F02B33/14 ,  F02B33/10 ,  F02B75/26 ,  F02B2075/025

摘要： An oscillating lever arm engine includes rigidly connected opposing pistons moved by a single lever connected to a rotating crankshaft. When applied to a two-cycle internal combustion engine, one piston may function as a pump piston and the second piston as a working piston which delivers power to the crankshaft through a connecting rod. When the pump piston is chosen to be of larger diameter, the volumetric efficiency of drawing in and providing the intake charge to the working piston may be increased. Furthermore, when poppet-type exhaust valves are used, valve timing may be selected so that the exhaust valves close before the cylinder wall transfer ports to achieve a supercharging effect.

摘要翻译： 摆动杆臂发动机包括由连接到旋转曲轴的单个杆移动的刚性连接的相对的活塞。 当应用于双循环内燃机时，一个活塞可用作泵活塞，而第二活塞可用作通过连接杆向曲轴输送功率的工作活塞。 当泵活塞被选择为更大直径时，可以增加向工作活塞抽吸和提供进气的体积效率。 此外，当使用提升式排气阀时，可以选择气门正时，使得排气门在气缸壁传送端口之前关闭，以实现增压效果。

公开(公告)号：US4481909A

公开(公告)日：1984-11-13

申请号：US466783

申请日：1983-02-16

申请人： Toshiyuki Takada ,  Hitoshi Yamamoto

发明人： Toshiyuki Takada ,  Hitoshi Yamamoto

IPC分类号： F02B17/00 ,  F02B25/14 ,  F02B25/16 ,  F02B29/06 ,  F02B33/14 ,  F02B75/02

CPC分类号： F02B33/14 ,  F02B2075/025

摘要： A crankchamber precompression type two-cycle internal combustion engine including at least one cylinder assembly, each cylinder assembly including a stepped cylinder constituted by a minor diameter cylinder portion and a major diameter cylinder portion, a stepped piston received in the stepped cylinder and constituted by a minor diameter piston portion and a major diameter piston portion adapted to be fitted in the minor diameter cylinder portion and the major diameter cylinder portion respectively, a crankchamber connected to the major diameter cylinder portion, a working chamber defined between the minor diameter cylinder portion and the minor diameter piston portion, and a sub-intake chamber defined between the major diameter cylinder portion and the minor diameter piston portion. The sub-intake chamber is connected to an auxiliary carburetor set beforehand to form a mixture of fuel of high quality and air, and the crankchamber is connected to a main carburetor set beforehand to form a mixture of fuel of low quality and air. The working chamber is formed, in addition to a main scavenging port communicated with the crankchamber, with an auxiliary scavenging port which is communicated with the sub-intake chamber through a super-charging reservoir.

摘要翻译： 一种曲轴箱预压型双循环内燃机，其包括至少一个气缸组件，每个气缸组件包括由小直径气缸部分和大直径气缸部分构成的阶梯式气缸，阶梯式活塞容纳在阶梯式气缸中并由 小直径活塞部分和大直径活塞部分，分别适于安装在小直径圆筒部分和大直径圆筒部分中，曲柄腔连接到大直径圆筒部分，工作室限定在小直径筒部分和 小直径活塞部分和限定在大直径圆筒部分和小直径活塞部分之间的子进气室。 副进气室预先连接到辅助化油器，以形成高质量的燃料和空气的混合物，并且曲轴箱预先连接到主化油器，以形成低质量燃料和空气的混合物。 除了与曲柄仓连通的主清扫口之外，还形成有辅助扫气口，该辅助扫气口通过超级充气容器与副进气室连通。

公开(公告)号：US3789808A

公开(公告)日：1974-02-05

申请号：US3789808D

申请日：1972-06-20

申请人： USTAV PRO VYZKUM MOTOROVYCH VO

发明人： RICHTER A

IPC分类号： F02B1/00 ,  F02B33/14

CPC分类号： F02B1/00 ,  F02B2700/023

摘要： Method and Apparatus for supercharging the cylinder, wherein additional air is compressed in two stages and only delivered to the cylinder in bulk during the suction stage of the working cycle. In the expansion stage the compressed air is diverted to the other cylinders and only a portion of the compressed air is delivered to the cylinder and only at the end of the expansion stroke.

摘要翻译： 用于对气缸进行增压的方法和装置，其中附加空气在两个阶段中被压缩，并且在工作循环的抽吸阶段期间仅被批量输送到气缸。 在膨胀阶段，压缩空气被转移到另一个气缸，并且只有一部分压缩空气被输送到气缸，并且仅在膨胀冲程结束。

公开(公告)号：US3404665A

公开(公告)日：1968-10-08

申请号：US56635766

申请日：1966-07-19

申请人： EUGENE R. BARNETT ,  WILLARD L. BARNETT

发明人： BARNETT EUGENE R ,  BARNETT WILLARD L

IPC分类号： F02B33/14 ,  F02B75/28

CPC分类号： F02B75/28 ,  F02B33/14

公开(公告)号：US1904854A

公开(公告)日：1933-04-18

申请号：US45161630

申请日：1930-05-12

申请人： CLARK BROS CO

发明人： CLARK CHARLES P ,  BJORNSSON CARL A

IPC分类号： F02B33/14 ,  F02B75/00 ,  F02B75/02

CPC分类号： F02B33/14 ,  F02B75/002 ,  F02B2075/025

公开(公告)号：US08893672B2

公开(公告)日：2014-11-25

申请号：US12619592

申请日：2009-11-16

申请人： Dana R. Allen

发明人： Dana R. Allen

IPC分类号： F02B33/10 ,  F02B33/14 ,  F02B33/12 ,  F02B33/22

CPC分类号： F02B33/22 ,  F02B33/12

摘要： A method and apparatus for pumping an intake charge into an engine is disclosed herein. The fuel-powered engine utilizes a barrier between an intake manifold and a crankcase of the engine to substantially protect the intake charge from contamination by engine crankcase oil, while using the natural pumping action of a reciprocating engine piston to pump the intake charge into the combustion chamber.

摘要翻译： 本文公开了一种将进气装置泵入发动机的方法和装置。 燃料发动的发动机利用发动机的进气歧管和曲轴箱之间的阻挡层，以基本上保护进气装置免受发动机曲轴箱油的污染，同时使用往复式发动机活塞的自然泵送作用将进气装置泵入燃烧 房间。

公开(公告)号：US06935285B2

公开(公告)日：2005-08-30

申请号：US10412523

申请日：2003-04-11

申请人： Tsuneyoshi Yuasa ,  Yoshiro Yamane ,  Masanori Kobayashi

发明人： Tsuneyoshi Yuasa ,  Yoshiro Yamane ,  Masanori Kobayashi

IPC分类号： F02B33/14 ,  F02B1/04 ,  F02B25/16 ,  F02B25/20 ,  F02B25/22 ,  F02B33/04 ,  F02B33/30 ,  F02B33/44 ,  F02B63/02 ,  F02B75/02 ,  F02B75/16

CPC分类号： F02B75/16 ,  F02B1/04 ,  F02B25/22 ,  F02B33/04 ,  F02B33/14 ,  F02B33/30 ,  F02B63/02 ,  F02B2075/025

摘要： A two-cycle combustion engine having a two-staged piston, is simple in structure and inexpensive and addresses a undesirable blow-off phenomenon of the air-fuel mixture. The two-cycle combustion engine includes a cylinder block having a two-staged cylinder bore with a reduced diameter bore portion and a large diameter bore portion, and a two-staged piston having a reduced diameter piston portion and a large diameter piston portion. An annular auxiliary chamber is defined between the two-staged cylinder bore and the reduced diameter piston portion. The two-cycle combustion engine also includes an air-fuel mixture passage for introducing the air-fuel mixture into a crank member, an air passage for introducing air into the auxiliary chamber, a scavenge passage for supplying the air-fuel mixture within the crank chamber into a combustion chamber, and injection passages and for injecting the air within the auxiliary chamber into the combustion chamber to counter a press-out issue.

摘要翻译： 具有两级活塞的双循环内燃机结构简单，价格低廉，并且解决了空气 - 燃料混合物不合乎要求的脱流现象。 双循环内燃机包括具有直径较小的孔部分和大直径孔部分的两级气缸孔的气缸体和具有减小直径的活塞部分和大直径活塞部分的两级活塞。 在两级气缸孔和减径活塞部分之间限定一个环形辅助室。 双循环内燃机还包括用于将空气燃料混合物引入曲柄构件的空气燃料混合通道，用于将空气引入辅助室的空气通道，用于将空气 - 燃料混合物供给到曲柄内的清除通道 腔室进入燃烧室，以及喷射通道，用于将辅助室内的空气注入燃烧室，以抵抗压出问题。

公开(公告)号：US6145488A

公开(公告)日：2000-11-14

申请号：US354447

申请日：1999-07-15

申请人： Richard A. Plechner

发明人： Richard A. Plechner

IPC分类号： F02B25/14 ,  F02B33/10 ,  F02B33/12 ,  F02B33/14 ,  F02B37/04 ,  F02B75/02

CPC分类号： F02B37/04 ,  F02B25/14 ,  F02B33/10 ,  F02B33/12 ,  F02B33/14 ,  F02B2075/025 ,  Y02T10/144

摘要： A reduced volume scavenging system for a two cycle engine embodying a duplex cylinder having an upper cylinder bore and a reduced-diameter lower cylinder bore. The lower bore communicates with a crankcase that houses a crankshaft, connecting rod(s) and engine lubricating oil. A fixed sleeve lines the upper cylinder bore and extends up into the cylinder head. A piston disposed for reciprocating motion within the fixed sleeve has an attached cylindrical, reciprocating sleeve that extends down into the lower cylinder bore and moves with the piston. The reciprocating sleeve has compression rings that seal the lower bore and the crankcase against blowyby gases that might contaminate the oil. The fixed sleeve has an intake opening in registry with an inlet port in the upper cylinder bore for admission of fresh air-fuel mixture. The fixed sleeve also has an exhaust opening diametrically opposite the intake opening and in registry with an exhaust port in the upper cylinder bore, as well as upper and lower pairs of scavenging openings in registry with transfer passageways recessed into the upper cylinder bore, such that each out stroke of the piston forces fresh air-fuel mixture through the passageways and into the combustion chamber to flush out burnt gases. This arrangement permits use of four cycle engine lubricating methods and apparatus in two cycle engines, without unduly adding to their weight and complexity, thereby reducing the emission of air pollutants and increasing engine life.

摘要翻译： 一种用于双循环发动机的减小体积清除系统，其具有具有上气缸孔和缩径直径的下气缸孔的双相气缸。 下孔与容纳曲轴，连杆和发动机润滑油的曲轴箱连通。 一个固定的套管连接着上气缸孔并向上延伸到气缸盖中。 设置用于在固定套筒内往复运动的活塞具有连接的圆柱形往复式套筒，其向下延伸到下气缸孔中并与活塞一起移动。 往复式套筒具有密封下孔和曲轴箱的压缩环，以防止可能污染油的气泡。 固定套筒具有与上气缸孔中的入口对准的进气口，用于进入新鲜的空气 - 燃料混合物。 固定套筒还具有与进气开口径向相对的排气口，并与上气缸孔中的排气口对准，以及上下成对的扫气开口，其与凹入上气缸孔的输送通道对准，使得 活塞的每个出口冲程迫使新鲜的空气 - 燃料混合物通过通道进入燃烧室以冲洗燃烧的气体。 这种布置允许在两循环发动机中使用四循环发动机润滑方法和装置，而不会不适当地增加其重量和复杂性，从而减少空气污染物的排放和增加发动机寿命。