-
公开(公告)号：US4411845A
公开(公告)日：1983-10-25
申请号：US381509
申请日：1982-05-24
CPC分类号： F02M19/12 , Y10T74/20534 , Y10T74/20558 , Y10T74/2063
摘要： An improved throttle valve assembly of the type which includes a throttle body provided with a throttle lever and a second, intermediate lever interconnected with each other by a roller/cam slot mechanism, said throttle lever being adapted to be moved by said second lever which is connected through the throttle linkage to the accelerator. The improvement comprises means disposed between the throttle lever and the second lever for adjusting the clearance existing between the cam slot and roller when the throttle valve is located in the vicinity of the idle position thereof, so that the excessive play that would otherwise arise at the accelerator when the throttle valve is in the idle position is reduced or avoided.
摘要翻译： 一种改进的节流阀组件，其包括设置有节流杆的节气门体和通过辊/凸轮槽机构彼此互连的第二中间杆，所述节流杆适于由所述第二杆移动，所述第二杆是 通过节流阀连接到加速器。 该改进包括设置在节流杆和第二杆之间的装置，用于当节气门位于其空转位置附近时调节存在于凸轮槽和辊之间的间隙，从而在 当节气门处于怠速位置时，加速器减少或避免。
-
公开(公告)号：US4383512A
公开(公告)日：1983-05-17
申请号：US258573
申请日：1981-04-29
申请人： Norikatsu Ishikawa , Hidemi Onaka , Haruyuki Obata , Takao Tate , Toshio Tanahashi , Isamu Hagino
发明人： Norikatsu Ishikawa , Hidemi Onaka , Haruyuki Obata , Takao Tate , Toshio Tanahashi , Isamu Hagino
CPC分类号： F02D41/1491 , F02M11/02 , F02M3/09 , F02M7/24
摘要： An air-fuel ratio control device of an internal combustion engine having a carburetor. An air bleed passage is connected to a fuel outflow passage of the carburetor, and an electromagnetic control valve is arranged in the air bleed passage. The control valve is controlled by the detecting signal of an oxygen concentration detector arranged in the exhaust passage so that the air-fuel ratio of a mixture fed into the cylinder of an engine becomes equal to the stoichiometric air-fuel ratio. When the vehicle is decelerated, the mean value of the potential level, which has been applied to the electromagnetic control valve before deceleration, is stored. When the throttle valve is opened during the deceleration and, then, the oxygen concentration detector detects that a rich air-fuel mixture is fed into the cylinder of the engine, the above-mentioned mean value is instantaneously applied to the electromagnetic control valve.
摘要翻译： 具有化油器的内燃机的空燃比控制装置。 排气通道连接到化油器的燃料流出通道，并且在排气通道中布置有电磁控制阀。 控制阀由布置在排气通道中的氧浓度检测器的检测信号控制，使得供给到发动机气缸中的混合物的空燃比变得等于理论空燃比。 当车辆减速时，存储已经施加到减速之前的电磁控制阀的电位电平的平均值。 当在减速期间节流阀打开时，然后，氧浓度检测器检测到富空燃混合物被送入发动机气缸，上述平均值被瞬时施加到电磁控制阀。
-
公开(公告)号：US4343229A
公开(公告)日：1982-08-10
申请号：US35682
申请日：1979-05-03
CPC分类号： F02F3/003 , F02F3/12 , F05C2201/021 , F05C2201/0448 , F05C2201/046 , F05C2251/042
摘要： An engine piston composed of a head and a body separately formed from the head. The head is of ceramic material and the body is light metal or light alloy. The head and the body are connected against axial movement by interengagement of inclined surfaces on the head and body by rotation of the head relative to the body, and the head and body are then fixed against relative rotation by an anti-turning device, this arrangement preventing development of excessive thermal stress. The piston is of reduced weight, can be mass-produced, and reduces fuel consumption.
摘要翻译： 一种发动机活塞，由头部和主体构成，该主体与头部分别形成。 头是陶瓷材料，身体是轻金属或轻合金。 头部和主体通过头部相对于主体的旋转而相互接合头部和主体上的倾斜表面而相对于轴向移动，并且头部和主体然后通过防转动装置抵抗相对旋转而固定，这种布置 防止过度热应力的发展。 活塞减重，可批量生产，降低燃油消耗。
-
公开(公告)号：US4300499A
公开(公告)日：1981-11-17
申请号：US39182
申请日：1979-05-15
CPC分类号： F02F3/28 , F02B23/08 , F02B2275/40 , Y02T10/125
摘要： An internal combustion engine comprising a first raised portion formed on the inner wall of the cylinder head, a second raised portion formed on the top face of the piston at a position opposite to the first raised portion with respect to the axis of the piston, and a third raised portion formed on the inner wall of the cylinder head above the second raised portion. A first flat squish area is formed between the flat peripheral top face of the piston and the flat bottom face of the first raised portion. A second spherical shell shaped squish area is formed between the spherical bottom wall of the third raised portion and the spherical rear face of the second raised portion. The second raised portion has a front face which comprises a gently inclined front face portion and a steeply inclined front face portion. The gently inclined front face portion is arranged beneath the exhaust valve, and the steeply inclined front face portion is arranged beneath the intake valve.
摘要翻译： 一种内燃机，包括形成在所述气缸盖的内壁上的第一凸起部分，在与所述第一凸起部分相对于所述活塞的轴线相对的位置形成在所述活塞的顶面上的第二凸起部分，以及 在所述第二凸起部分上方形成在所述气缸盖的内壁上的第三凸起部分。 第一扁平挤压区域形成在活塞的平坦周边顶面和第一凸起部分的平坦底面之间。 在第三凸起部分的球形底壁和第二凸起部分的球形后表面之间形成第二球形壳形挤压区域。 第二凸起部具有前表面，其包括轻轻倾斜的前表面部分和陡峭倾斜的前表面部分。 轻轻倾斜的前表面部分设置在排气阀的下方，并且陡倾斜的前表面部分设置在进气门的下方。
-
公开(公告)号：US4254750A
公开(公告)日：1981-03-10
申请号：US791031
申请日：1977-04-26
申请人： Toshio Tanahashi , Yoshiharu Sakai
发明人： Toshio Tanahashi , Yoshiharu Sakai
CPC分类号： F02B19/12 , F02B1/04 , Y02T10/125
摘要： Disclosed is an internal combustion engine comprising a main combustion chamber and an auxiliary combustion chamber interconnected by two connecting passages with each other. A raised portion having a flat lower end face is formed on the inner wall of the cylinder head. A squish area is formed between the flat lower end face of the raised portion and the flat top surface of the piston when the piston reaches the top dead center. The spark gap of the spark plug is located in a first one of the connecting passages or in the auxiliary combustion chamber at a position near the first connecting passage. The first connecting passage is so arranged that the squish flow passes through in front of the opening of the first connecting passage for decelerating the combustible mixture stream forced into the auxiliary combustion chamber via the first connecting passage at the time of the compression stroke. The second connecting passage is arranged at a position wherein the squish flow does not obstruct the combustible mixture stream forced into the auxiliary combustion chamber via the second connecting passage at the time of the compression stroke.
摘要翻译： 公开了一种内燃机，其包括通过两个连接通道彼此连接的主燃烧室和辅助燃烧室。 具有平坦的下端面的凸起部分形成在气缸盖的内壁上。 当活塞到达上止点时，在凸起部的平坦的下端面与活塞的平坦顶面之间形成挤压区域。 火花塞的火花隙位于靠近第一连接通道的位置处的第一个连接通道或辅助燃烧室中。 第一连接通道布置成使得挤压流在第一连接通道的开口前方通过，用于在压缩行程时通过第一连接通道减压被迫进入辅助燃烧室的可燃混合物流。 第二连接通道布置在其中挤压流不压缩在压缩冲程时通过第二连接通道被迫进入辅助燃烧室的可燃混合物流的位置。
-
公开(公告)号：US4240387A
公开(公告)日：1980-12-23
申请号：US58758
申请日：1979-07-19
CPC分类号： F02M35/108 , F02B31/06 , F02M35/10078 , F02M35/10183 , F02M35/10255 , F02M35/10308 , F02B1/04 , F02B2275/20 , F02M35/10262 , Y02T10/14 , Y02T10/146
摘要： A multi-cylinder engine comprising a carburetor housing forming therein at least two branch mixture passages. Each of the branch mixture passages is connected to a respective intake port. A throttle valve of the carburetor is provided for each cylinder. Each of the throttle valves is arranged in the respective branch mixture passage and attached onto a common throttle shaft. A wedge shaped groove is formed on the upper inner wall of each of the branch mixture passages, and the common throttle shaft is arranged in the wedge shaped groove for causing the mixture to flow only along the bottom wall of the branch mixture passage. A single common connecting passage and branch connecting passages which are connected to the common connecting passage are provided. Each of the branch connecting passages opens into the respective intake port in the vicinity of the rear face of the valve head of the corresponding intake valve.
摘要翻译： 一种多缸发动机，包括在其中形成至少两个分支混合物通道的化油器壳体。 每个分支混合物通道连接到相应的进气口。 为每个气缸设置了化油器的节流阀。 每个节流阀布置在相应的分支混合物通道中并且附接到共同的节流轴上。 在每个分支混合物通道的上内壁上形成楔形槽，并且共同节流轴布置在楔形槽中，以使混合物仅沿着分支混合物通道的底壁流动。 提供了连接到公共连接通道的单个公共连接通道和分支连接通道。 每个分支连接通道在相应的进气门的阀头的后表面附近通向相应的进气口。
-
公开(公告)号：US4185463A
公开(公告)日：1980-01-29
申请号：US971239
申请日：1978-12-20
申请人： Toshio Tanahashi , Yasuo Fujioka
发明人： Toshio Tanahashi , Yasuo Fujioka
CPC分类号： F01N13/08 , F01N13/14 , F01N13/141 , F01N2470/24
摘要： An exhaust double pipe used for interconnecting an exhaust manifold with a catalytic converter of an internal combustion engine, comprising an inner pipe and an outer pipe. The outer pipe comprises a first pipe and a second pipe. The outer end of the first pipe is welded to a flange together with one end of the inner pipe. The outer end of the second pipe is welded to another flange together with the other end of the inner pipe. The inner end of the first pipe is directly fitted into the inner end of the second pipe, or is indirectly connected to the inner end of the second pipe via a spacer so as to be able to slide relative to the second pipe.
摘要翻译： 一种用于将排气歧管与内燃机的催化转化器相互连接的排气双管，包括内管和外管。 外管包括第一管和第二管。 第一管的外端与内管的一端焊接到凸缘。 第二管的外端与内管的另一端焊接到另一凸缘。 第一管的内端直接配合到第二管的内端，或者经由间隔件间接地连接到第二管的内端，以能够相对于第二管滑动。
-
公开(公告)号：US4175531A
公开(公告)日：1979-11-27
申请号：US781423
申请日：1977-03-25
申请人： Toshio Tanahashi
发明人： Toshio Tanahashi
CPC分类号： F02B19/1028 , F02B19/1066 , F02B19/12 , F02B1/04 , Y02T10/125
摘要： Disclosed is an internal combustion engine comprising a main combustion chamber, a first auxiliary combustion chamber and a second auxiliary combustion chamber. The first auxiliary combustion chamber is connected to the main combustion chamber via a first connecting passage in which the spark plug is located. The second auxiliary combustion chamber having no spark plug is connected to the main combustion chamber via a second connecting passage. A flame of the combustible mixture contained in the first connecting passage and ignited by the spark plug reaches the second connecting passage and causes the ignition of the combustible mixture in the second auxiliary combustion chamber. As a result a burning jet is injected from the second connecting passage into the main combustion chamber a little while after the burning jet is injected from the first connecting passage into the main combustion chamber.
摘要翻译： 公开了一种内燃机，其包括主燃烧室，第一辅助燃烧室和第二辅助燃烧室。 第一辅助燃烧室经由火花塞所在的第一连接通道连接到主燃烧室。 没有火花塞的第二辅助燃烧室通过第二连接通道连接到主燃烧室。 包含在第一连接通道中并被火花塞点燃的可燃混合物的火焰到达第二连接通道并引起可燃混合物在第二辅助燃烧室中的点火。 结果，在从第一连接通道向主燃烧室喷射燃烧喷射之后，燃烧射流从第二连接通道喷入主燃烧室。
-
公开(公告)号：US4058091A
公开(公告)日：1977-11-15
申请号：US692504
申请日：1976-06-03
申请人： Toshio Tanahashi
发明人： Toshio Tanahashi
CPC分类号： F02B17/005 , F02M57/04
摘要： An internal combustion engine of a lean air-fuel mixture combustion type comprising a valve guide and an intake valve supported by the valve guide. A pumping chamber is formed between the inner wall of the valve guide and the outer wall of the valve stem of the intake valve. The valve head has on its outer wall an injection nozzle connected to the pumping chamber. When the intake valve returns to its closing position at the time of the intake stroke, a fuel is injected from the injection nozzle into the combustion chamber filled with a lean air-fuel mixture whereby, a rich air-fuel mixture layer is formed in an ignition area around the spark gap of the spark plug.DESCRIPTION OF THE INVENTIONThe present invention relates to an internal combustion engine of a lean air-fuel mixture combustion type, and particularly relates to an internal combustion engine of a lean air-fuel mixture combustion type in which a mixture in a combustion chamber is formed by two separate mixture layers comprising a lean air-fuel mixture layer and a rich air-fuel mixture layer, whereby the rich air-fuel mixture is ignited by a spark plug.As a conventional method for simultaneously reducing the level of harmful components contained in exhaust gases from internal combustion engine, such as CO (carbon monoxide), HC (unburned hydrocarbons) and NO.sub.x (nitrogen oxides), there is known an effective method in which a lean air-fuel mixture having an increased air-fuel ratio (i.e., beyond the stoichiometric ratio) is used. This lean air-fuel mixture, however, is less easily ignited. In order to eliminate this disadvantage, an internal combustion engine has been proposed, in which a mixture in a combustion chamber is formed by two separate mixture layers comprising a lean air-fuel mixture layer and a rich air-fuel mixture layer, whereby the rich air-fuel mixture is ignited by a spark plug, thereby greatly improving the ease of the ignition and also reducing the level of harmful components in the exhaust gas. In order to form a rich air-fuel mixture layer in a combustion chamber, for example, there is known an internal combustion engine provided with fuel injection nozzles, in which a fuel is injected from the fuel injection nozzles directly to the combustion chamber, thereby forming a rich air-fuel mixture layer in the combustion chamber. However, an internal combustion engine of this type requires the provisions of expensive injection nozzles having durability to high temperature and high pressure, a complicated piping, and a plunger unit actuated precisely in synchronization with the revolution of the crankshaft of the engine. Consequently, an internal combustion engine of this type has a considerably more complicated construction.An object of the present invention is to eliminate the above-mentioned drawback. That is to say, an object of the present invention is to provide an internal combustion engine in which a rich air-fuel mixture layer can be formed in the combustion chamber by using an extremely simple mechanism.According to the present invention, an internal combustion engine comprises a cylinder block, a piston reciprocally movable in the cylinder block, a cylinder head fixed onto the cylinder block, a combustion chamber formed between the inner surface of the cylinder head and the top surface of the piston, a valve guide fixed to the cylinder head, an intake valve supported by the valve guide and comprising a valve stem and a valve head having on its outer wall an injection nozzle, an intake passage one end of which is connected to the combustion chamber via the intake valve, the other end of the intake passage being connected to the atmosphere, a fuel supply means for feeding a lean air-fuel mixture into the intake passage, a spark plug having gap located in the combustion chamber, a pumping chamber formed between the valve stem and the valve guide, the pumping operation of said pumping chamber being caused by the reciprocal movement of the intake valve, a fuel injection passage formed in the intake valve and arranged so as to connect the pumping chamber with the injection nozzle, a first check valve disposed in said fuel injection passage and only allowing outflow of a liquid fuel from the pumping chamber to the injection nozzle, a fuel supply passage arranged so as to connect the pumping chamber with a fuel source, a second check valve disposed in the fuel supply passage and only allowing inflow of the liquid fuel from the fuel source to the pumping chamber, said injection nozzle being arranged so as to be directed to an ignition area around the saprk gap, a fuel being injected from the injection nozzle into the combustion so as to form a rich air-fuel mixture layer in the ignition area when the intake valve returns to its closing position at the time of the intake stroke of the engine.The above-mentioned object of the present invention may be more fully understood from the following descriptions of a preferred embodiment of the invention, together with the accompanying drawings.
摘要翻译： 电源，第二个检查阀处理在燃油供应通道中，仅允许液体燃料从燃料源流入泵室，注射喷嘴安装在SAPRK GAP附近的点火区域，A 燃油从注射喷嘴注入燃烧中，以便在入口区域内形成富含空气燃料混合物的层，当入口阀在发动机进气时返回到关闭位置。
-
公开(公告)号：US06269791B1
公开(公告)日：2001-08-07
申请号：US09356453
申请日：1999-07-19
申请人： Hiroshi Tanaka , Toshio Tanahashi , Kenji Katoh
发明人： Hiroshi Tanaka , Toshio Tanahashi , Kenji Katoh
IPC分类号： F02B302
CPC分类号： F02D41/0055 , F01N3/0842 , F01N13/009 , F01N13/011 , F01N2610/03 , F02D41/006 , F02D41/0065 , F02D41/0275 , F02D41/1443 , F02D41/1456 , F02D41/3029 , F02D41/405 , F02D2041/389 , F02M45/02 , Y02T10/44 , Y02T10/47
摘要： A control system for an internal combustion engine including a direct cylinder fuel injection valve for directly injecting the fuel into a cylinder of an internal combustion engine. The main fuel that burns in the cylinder is injected in the latter half of the compression stroke of the cylinder, and the secondary fuel which is the ineffective fuel that does not burn in the cylinder is injected in the latter half of the exhaust stroke main fuel and the secondary fuel air-fuel ratio mixture around the spark plug. When the secondary fuel is injected, the exhaust valve is opening, and the fuel that is deflected is all discharged out of the cylinder through the exhaust port. Therefore, the ineffective fuel supplied by the secondary fuel injection does not remain in the cylinder, and the output torque does not change in the combustion of the next cycle.
摘要翻译： 一种用于内燃机的控制系统，其包括用于将燃料直接喷射到内燃机的气缸中的直接气缸燃料喷射阀。 在气缸中燃烧的主要燃料被注入到气缸的压缩冲程的后半部分中，作为在缸内不燃烧的无效燃料的二次燃料被注入排气冲程主燃料的后半部分 以及火花塞周围的二次燃料空燃比混合物。 当二次燃料被喷射时，排气阀打开，并且被偏转的燃料全部通过排气口排出气缸。 因此，通过二次燃料喷射供给的无效燃料不会残留在气缸中，在下一循环的燃烧中输出转矩不变化。
-
-
-
-
-
-
-
-
-
搜索结果
119 条记录 (耗时 0.026 秒)
