公开(公告)号：US4296715A

公开(公告)日：1981-10-27

申请号：US9072

申请日：1979-02-02

申请人： Remi Curtil ,  Alain Devaux

发明人： Remi Curtil ,  Alain Devaux

IPC分类号： F01L3/12 ,  F01L1/40 ,  F01P1/08 ,  F02B29/08 ,  F01L1/34

CPC分类号： F01L1/40 ,  F02B29/08 ,  Y02T10/146

摘要： This invention relates to a method and devices for improving the external cooling of an exhaust valve of internal combustion engines. This method consists in extending the open period of the exhaust valve beyond the normal closing instant by preventing it from closing completely at that instant but by reducing the free flow section between the valve and its seat to a residual value which is substantially constant and small compared to the maximum flow section corresponding to the full opening of the valve. Said devices comprise means for obtaining such residual opening of the exhaust valve.

摘要翻译： 本发明涉及一种用于改善内燃机排气门的外部冷却的方法和装置。 该方法的目的在于通过防止排气阀的开启时间超过正常的关闭时间，使其在该时刻完全关闭，但是通过将阀门和阀座之间的自由流动面积减小到基本上恒定和小的残差值 到对应于阀的完全打开的最大流动部分。 所述装置包括用于获得排气阀的这种残余开口的装置。

公开(公告)号：US4424790A

公开(公告)日：1984-01-10

申请号：US377142

申请日：1982-05-11

申请人： Remi Curtil

发明人： Remi Curtil

IPC分类号： F01L1/08 ,  F02B3/06 ,  F02B29/08 ,  F02B75/02 ,  F02D13/02 ,  F02D23/00 ,  F02M23/08 ,  F02M25/07 ,  F02M25/06

CPC分类号： F02D13/0215 ,  F01L1/08 ,  F02B29/08 ,  F02D13/0246 ,  F02D13/0261 ,  F02D13/0269 ,  F02D13/0273 ,  F02B2075/027 ,  F02B2275/32 ,  F02B3/06 ,  Y02T10/142 ,  Y02T10/146

摘要： The invention relates to a method and a device for improving the efficiency of a four-stroke-cycle internal combustion engine. The main purpose of the invention is to obtain an effective compression ratio that is capable of automatic variation without introducing additional elements whatever the load, but only by adapting the engine cycle timing diagram. Said timing diagram includes an overlap stage between the lifts of at least one exhaust valve and at least one intake valve, said intake valve being closed near or before the bottom dead center of the piston, and said exhaust valve being closed beyond the instant of fixed closing of the intake valve.

摘要翻译： 本发明涉及一种用于提高四冲程循环内燃机的效率的方法和装置。 本发明的主要目的是获得一种有效的压缩比，其能够在不引入附加元件的情况下自动变化，而不管是通过适应发动机循环时序图。 所述时序图包括至少一个排气阀的升降机与至少一个进气门之间的重叠台，所述进气门在活塞的下止点附近或之前关闭，并且所述排气门被关闭超过固定时刻 关闭进气阀。

公开(公告)号：US4091775A

公开(公告)日：1978-05-30

申请号：US782030

申请日：1977-03-28

申请人： Remi Curtil

发明人： Remi Curtil

IPC分类号： F02B33/04 ,  F02B25/18 ,  F02B25/26 ,  F02B27/00 ,  F02B27/04 ,  F02B75/02 ,  F02B75/18 ,  F02B75/20

CPC分类号： F02B27/04 ,  F02B25/26 ,  F02B2075/025 ,  F02B2075/1808 ,  Y02T10/146

摘要： The intake ports of the combustion chambers of two alternately-operating cylinders of a two-stroke internal combustion engine are connected by a conduit which sets up temporary communication between the two cylinders. In operation, while the piston of one cylinder is at the top dead center, explosive mixture is sucked via an opening in the skirt of the piston and through said conduit to scavenge the other cylinder. During the driving stroke of the first cylinder, just before opening of the exhaust, its piston uncovers the intake port so that the residual energy of the combustion gases supercharges the explosive mixture in the other combustion chamber.

摘要翻译： 两冲程内燃机的两个交替操作的气缸的燃烧室的进气口通过在两个气缸之间建立临时连通的导管连接。 在操作中，当一个气缸的活塞处于上止点时，爆炸混合物通过活塞裙部中的开口并通过所述管道被吸入以清除另一个气缸。 在第一气缸的驱动冲程期间，在排气开放之前，其活塞露出进气口，使得燃烧气体的剩余能量对另一个燃烧室中的爆炸性混合物进行增压。

公开(公告)号：US4561253A

公开(公告)日：1985-12-31

申请号：US706900

申请日：1985-02-28

申请人： Remi Curtil

发明人： Remi Curtil

IPC分类号： F02B37/00 ,  F01L1/08 ,  F02B3/06 ,  F02B29/08 ,  F02B37/10 ,  F02B37/16 ,  F02B75/02 ,  F02D21/08 ,  F02D23/00

CPC分类号： F02D13/0273 ,  F01L1/08 ,  F01L13/085 ,  F02B37/10 ,  F02B37/16 ,  F02D13/0242 ,  F02D21/08 ,  F02B2075/027 ,  F02B2275/32 ,  F02B29/0406 ,  F02B3/06 ,  F02M26/01 ,  Y02T10/142 ,  Y02T10/144 ,  Y02T10/18

摘要： A method of operating a four-stroke cycle Diesel engine supercharged by an exhaust gas-driven turbocompressor with valve timing comprising a partial overlap of the opening periods of the exhaust and intake valves, with early intake closure and partial exhaust closure for the major part of the intake step followed by partial reopening of the exhaust and its final closure near bottom dead center after closure of the intake valve. At low and medium engine powers part of the supercharged intake air is bypassed to an end of an exhaust manifold, thereby increasing the cylinder filling factor and combustion air excess and substantially reducing exhaust valve temperature in the mid-power operating range of the engine.

摘要翻译： 一种操作由排气驱动的涡轮压缩机增压的四冲程循环柴油发动机的方法，其具有气门正时，其包括排气和进气门的开启时段的部分重叠，其中主要部分的早期进气闭合和部分排气关闭 进气步骤之后，在进气门关闭后，排气部分重新打开并在靠近下止点的最后关闭。 在低功率和中等功率的发动机功率下，增压进气的一部分旁路到排气歧管的一端，从而增加气缸填充系数和燃烧空气过剩，并显着降低发动机中功率运行范围内的排气阀温度。

公开(公告)号：US4232641A

公开(公告)日：1980-11-11

申请号：US882758

申请日：1978-03-02

申请人： Remi Curtil

发明人： Remi Curtil

IPC分类号： F02B75/12 ,  F01L1/08 ,  F02B3/06 ,  F02B29/00 ,  F02B29/02 ,  F02B29/08 ,  F02B41/04 ,  F02D13/02 ,  F02D13/00 ,  F02B25/00

CPC分类号： F02B29/083 ,  F02B29/00 ,  F02B41/04 ,  F02D13/0234 ,  F02D13/0269 ,  F02B2275/32 ,  F02B3/06 ,  Y02T10/142 ,  Y02T10/146

摘要： A method for improving the efficiency of an internal combustion engine such as a Diesel engine, by ensuring, on the one hand, efficient cylinder scavenging, particularly at light engine loads and/or low speeds, and on the other hand, a reduction of the effective compression ratio resulting in temperature reduction preferably under high engine loads and/or at high speeds. Said method consists in creating, for each engine cylinder and each engine cycle, a reserve of compressed air, during the intake stage, with the intake air and in compressing it by retarding the closing of the intake valve. A non-return valve is accommodated in the intake conduit and said gas reserve is contained in the space between the intake valve and the non-return valve.

摘要翻译： 一种提高柴油发动机的内燃机的效率的方法，一方面是确保高效的气缸清扫，特别是在轻的发动机负荷和/或低速下，另一方面，减少了 有效的压缩比导致优选在高发动机负载和/或高速下的温度降低。 所述方法包括在每个发动机气缸和每个发动机循环期间，在进气阶段期间，通过吸入空气来制造压缩空气的储备，并通过延迟进气门的关闭来压缩空气。 止回阀容纳在进气管道中，并且所述气体储存器容纳在进气门和止回阀之间的空间中。

公开(公告)号：US3974804A

公开(公告)日：1976-08-17

申请号：US507250

申请日：1974-09-18

申请人： Remi Curtil

发明人： Remi Curtil

IPC分类号： F02B75/18 ,  F02B1/04 ,  F02B3/06 ,  F02B27/00 ,  F02B29/06 ,  F02B33/00

CPC分类号： F02B33/00 ,  F02B1/04 ,  F02B3/06

摘要： Two cylinders of a Diesel or gasoline engine are connected by a pipe leading into ports of the combustion chambers which are simultaneously uncovered by the respective pistons at the beginning of the exhaust phase of one chamber and the end of the intake phase of the other. During this temporary communication, the residual energy of the exhaust gases in said one chamber compels air in said tube to supercharge said other chamber. Passageways are provided in the pistons which connect said pipe with air inlet and exhaust manifolds to ensure scavenging of the pipe between the supercharging periods.

摘要翻译： 柴油或汽油发动机的两个气缸通过导管到燃烧室的端口的管道连接，在一个室的排气相的开始处和另一个室的进气相的末端同时被相应的活塞覆盖。 在该暂时通信期间，所述一个室中的废气的剩余能量迫使所述管中的空气对所述另一个室进行增压。 通道设置在将管道与进气歧管和排气歧管连接的活塞中，以确保管道在增压期间的清除。

公开(公告)号：US5819693A

公开(公告)日：1998-10-13

申请号：US640736

申请日：1996-05-06

申请人： Remi Curtil

发明人： Remi Curtil

IPC分类号： F02B37/00 ,  F02B29/06 ,  F02B29/08 ,  F02B75/18 ,  F02D13/02 ,  F02D23/00 ,  F02B25/00

CPC分类号： F02D13/0273 ,  F02B29/08 ,  F02D13/0246 ,  F01L1/08 ,  F02B2075/184 ,  Y02T10/146 ,  Y02T10/18

摘要： A method wherein a number of cylinders (2, 3; 1, 4) are grouped on a same exhaust gas manifold (8, 10) such that the pressure in the exhaust pipe (1e . . . 4e) undergoes time-dependent fluctuations of substantial amplitudes, and the exhaust valve (6) of a cylinder (1) is opened during induction or filling thereof (i.e. adjacent to the bottom dead center) so that, in a given engine speed range, a phase (28) of low instantaneous exhaust pressure prevailing in the exhaust pipe enables the inlet pipe (1a)/cylinder (1)/exhaust pipe (1e) to be scavenged while the inlet valve (5) and the exhaust valve (6) are simultaneously open. The phase (29) of high instantaneous exhaust pressure, caused by another cylinder, after the inlet valve (5) has closed and while the exhaust valve (6) is still open, is used for post-charging the cylinder (1) with air (A) previously stored in the exhaust pipe (1e). The size of the turbine (T) is selected so that there is virtually no post-charging of the cylinder (1) with exhaust gases at engine speeds above said given engine speed range.

摘要翻译： PCT No.PCT / FR94 / 01348 Sec。 371日期：1996年5月6日 102（e）日期1996年5月6日PCT 1994年11月18日PCT公布。 WO95 / 14853 PCT公开号 日期：1995年6月1日一种方法，其中将多个气缸（2,3; 1,4）分组在相同的排气歧管（8,10）上，使得排气管（1e。... 4e）中的压力经历 实际振幅的时间相关的波动和气缸（1）的排气阀（6）在其感应或填充期间（即，邻近下止点）打开，使得在给定的发动机转速范围内，相（ 排气管中存在低瞬时排气压力的燃油喷射管（28），能够使进气管（1a）/气缸（1）/排气管（1e）被清扫，而进气阀（5）和排气阀（6）同时打开 。 在进气阀（5）已经关闭并且排气阀（6）仍然打开之后，由另一气缸引起的高瞬时排气压力的相（29）用于利用空气对气缸（1）进行后充气 （A），其预先存储在排气管（1e）中。 选择涡轮机（T）的尺寸，使得在发动机转速高于所述给定发动机转速范围的情况下，实际上没有气缸（1）对排气进行后充气。

公开(公告)号：US5048473A

公开(公告)日：1991-09-17

申请号：US432750

申请日：1989-12-06

申请人： Remi Curtil

发明人： Remi Curtil

IPC分类号： F02B25/20 ,  F02B25/00 ,  F02B29/06 ,  F02B75/02

CPC分类号： F02B25/00 ,  F02B29/06 ,  F02B2075/025 ,  Y02T10/146

摘要： The invention relates to a method and apparatus for arranging a post-charging two-stroke engine. The apparatus includes a post-charging system (16) including an air admission duct (22) to the cylinder (14). The duct communicates intermittently either with the source of scavenging air (A) or alternatively with a chamber (30) for storing gases under pressure. Advantageously, the chamber (30) is inside the piston (12), whereas the air admission duct (22) is formed by at least one curved duct going round the cylinder (14) and having sufficient volume to constitute a reserve of charging air for use in post-charging. The invention improves engine operation.

摘要翻译： PCT No.PCT / FR88 / 00155 Sec。 371日期1989年12月6日第 102（e）日期1989年12月6日PCT提交1988年3月25日PCT公布。 出版物WO88 / 08073 日期：1988年10月20日本发明涉及一种用于布置后充气二冲程发动机的方法和装置。 该装置包括后充气系统（16），其包括到气缸（14）的进气管道（22）。 管道间歇性地与清除空气源（A）或可选地与用于储存压力气体的室（30）连通。 有利的是，腔室（30）在活塞（12）的内部，而空气进入管道（22）由至少一个弯曲的管道形成，环绕圆筒（14）并具有足够的体积以构成充气的储备 用于后充电。 本发明改善了发动机运转。

公开(公告)号：US4404805A

公开(公告)日：1983-09-20

申请号：US244624

申请日：1981-03-17

申请人： Remi Curtil

发明人： Remi Curtil

IPC分类号： F02B37/00 ,  F02B37/10 ,  F02B37/16 ,  F02B37/20 ,  F02B39/02 ,  F02B41/10

CPC分类号： F02B37/20 ,  F01N5/02 ,  F02B37/10 ,  F02B37/105 ,  F02B37/16 ,  F02B37/168 ,  Y02T10/144 ,  Y02T10/16

摘要： An internal combustion engine supercharged with air by an exhaust gas-driven turbo-compressor discharging through a by-pass duct a tapped flow rate of compressed air into the exhaust gas pipe-line feeding the turbine, said tapped flow rate of compressed air being heated by means of a heat exchanger inserted into the by-pass duct and through which are flowing the exhaust gases from the turbine, said tapped flow rate of heated compressed air being injected into the upstream end of the exhaust manifold of the engine.

摘要翻译： 通过排气驱动的涡轮压缩机通过旁通管排出空气的内燃机将压缩空气的抽吸流量排入供给涡轮机的废气管线，所述压缩空气的抽头流速被加热 通过插入旁通管道的热交换器，并且使来自涡轮机的废气流过，所加热的压缩空气的抽头流量被注入到发动机的排气歧管的上游端。

公开(公告)号：US4288988A

公开(公告)日：1981-09-15

申请号：US870465

申请日：1978-01-18

申请人： Remi Curtil

发明人： Remi Curtil

IPC分类号： F01D9/06 ,  F01N13/10 ,  F02B27/04 ,  F02B37/02 ,  F02B75/18 ,  F02B75/22 ,  F02C6/12 ,  F02B37/00 ,  F01N7/10

CPC分类号： F01D9/06 ,  F02B27/04 ,  F02B37/02 ,  F02B75/22 ,  F02C6/12 ,  F02B2075/184 ,  Y02T10/144 ,  Y02T10/146

摘要： Method and exhaust manifold for damping the pressure oscillations in an exhaust manifold of an internal combustion engine, consisting in throttling the gas flow in the vicinity of the cylinder outlet and then in accelerating the gases flowing in the manifold by providing a uniform flow section in the manifold substantially smaller than that of the cylinder bore.

摘要翻译： 用于阻尼内燃机排气歧管中的压力振荡的方法和排气歧管，其包括在气缸出口附近节流气流，然后通过在气缸出口中提供均匀的流动部分来加速流经歧管的气体 歧管基本上比气缸孔的小。