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公开(公告)号：US20060137658A1
公开(公告)日：2006-06-29
申请号：US11111744
申请日：2005-04-22
IPC分类号： F02M59/36
CPC分类号： F02M63/0225 , F02D41/3845 , F02M59/34 , F02M59/366
摘要： The injection system has a pump for supplying high-pressure fuel to a storage volume for supplying a number of injectors. The pump has at least one reciprocating pumping element performing a compression stroke synchronously with each fuel injection. The injection system has at least one control device for controlling the amount of fuel supplied by the pump to the storage volume, and which is controlled by a chopper control unit to modulate the fuel volume introduced into the compression chamber during the intake stroke (Ps-Pi). The delivery start instant of the pumping element during the compression stroke being unequivocally defined by the fuel volume introduced.
摘要翻译： 注射系统具有用于将高压燃料供应到用于供应多个喷射器的存储容积的泵。 泵具有与每个燃料喷射同步地执行压缩冲程的至少一个往复泵送元件。 喷射系统具有至少一个控制装置，用于控制由泵供给到储存容积的燃料量，并由斩波控制单元控制，以调节在进气冲程期间引入压缩室的燃料量（Ps- Pi）。 在压缩冲程期间泵送元件的输送开始瞬间被引入的燃料体积明确地限定。
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2.发明申请Gas feeding system for an internal combustion engine, having a pressure reducing valve connected to the intake manifold 有权用于内燃机的气体供给系统，具有连接到进气歧管的减压阀公开(公告)号：US20050252495A1
公开(公告)日：2005-11-17
申请号：US11053875
申请日：2005-02-10
CPC分类号： F02D19/022 , F02M21/0233 , F02M21/0239 , F02M21/0242 , F02M21/0245 , G05D16/2093 , Y02T10/32
摘要： In a gas-supply system for internal-combustion engines, a pressure-reducing valve is set between the reservoir of the gas and a distribution manifold or rail that feeds the gas to a series of electromagnetically controlled injectors associated to the various cylinders of the engine. The pressure-reducing valve has a piston member, which is mobile inside the valve body, for controlling said open/close element, and has one end facing a first chamber within said valve body, set in the path of connection of the inlet connector with the outlet connector, and the opposite end facing a second chamber within said valve body. The aforesaid second chamber is connected to the intake manifold of the internal-combustion engine so as to enable any flow of gas that has leaked from said first chamber to said second chamber to be discharged in the engine. Set in connection with the intake manifold is a solenoid shutoff valve, preferably incorporated in the pressure-reducing valve, which is opened automatically upon ignition of the engine.
摘要翻译： 在用于内燃机的气体供应系统中，减压阀设置在气体储存器和分配歧管或轨道之间，该分配歧管或轨道将气体供给到与发动机的各个气缸相关联的一系列电磁控制的喷射器 。 所述减压阀具有活塞构件，所述活塞构件在所述阀体内移动，用于控制所述打开/关闭元件，并且其一端面对所述阀体内的第一室，设置在所述入口连接器与 出口连接器，并且相对端面对所述阀体内的第二室。 上述第二室连接到内燃机的进气歧管，使得能够从所述第一室泄漏到所述第二室的任何气体流在发动机中排放。 与进气歧管相关联的是电磁阀截止阀，优选地结合在减压阀中，该减压阀在发动机点火时自动打开。
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3.发明申请Device for connection between a rail for fuel under pressure and at least one injector, for an internal-combustion engine 有权用于在压力下的燃料的轨道与用于内燃机的至少一个喷射器之间连接的装置公开(公告)号：US20070006848A1
公开(公告)日：2007-01-11
申请号：US11356313
申请日：2006-02-17
CPC分类号： F02M55/025 , F02M55/005
摘要： The device comprises a connection tube (13) in communication with a hole (11) of a rail (7) for fuel under pressure, the tube (13) being provided with an end swelling (16). The device comprises a first threaded element (18) fixed to the rail (7) in a position corresponding to the hole (11) and a second threaded element (19) designed to engage the first threaded element (18). Removably set between the hole (11) and the swelling (16) is a seal element (21) designed to form a seal both with the hole (11) and with the swelling (16). The seal element (21) is a body of revolution (23) equipped with a passage (25) along a pre-set axis (A), and comprises two end noses (26, 27) designed to be inserted in the swelling (16) and in the hole (11), respectively, and two tapered seal stretches (28, 29).
摘要翻译： 该装置包括与用于燃料压力的导轨（7）的孔（11）连通的连接管（13），管（13）设置有端部膨胀（16）。 该装置包括在与孔（11）对应的位置固定到轨道（7）的第一螺纹元件（18）和设计成接合第一螺纹元件（18）的第二螺纹元件（19）。 可移动地设置在孔（11）和膨胀部（16）之间的密封元件（21）被设计成与孔（11）和膨胀（16）形成密封。 密封元件（21）是沿着预设轴线（A）装备有通道（25）的旋转体（23），并且包括设计成插入膨胀部分（16）中的两个端部鼻部（26,27） ）和孔（11）中的两个锥形密封段（28,29）。
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4.发明申请High-pressure pump with a device for regulating the flow rate for a fuel-injection system 有权具有用于调节燃料喷射系统的流量的装置的高压泵公开(公告)号：US20060104826A1
公开(公告)日：2006-05-18
申请号：US11114091
申请日：2005-04-26
IPC分类号： F04B3/00
CPC分类号： F02M59/06 , F02D41/3845 , F02D41/406 , F02M59/102 , F02M59/366 , F02M63/0225 , Y02T10/44
摘要： The high-pressure pump (7) comprises a number of pumping elements (18) actuated in reciprocating motion through corresponding suction and delivery strokes. Each pumping element (18) is provided with a corresponding intake valve (25) in communication with an intake pipe (10) supplied by a low-pressure pump (9). Set on the intake pipe (10) is an on-off solenoid valve (27) having a reduced flow rate substantially of the same order of magnitude as the maximum amount of fuel that can be injected by an injector (5). The solenoid valve (27) is controlled in a chopped way in synchronism with an intermediate part (32) of the suction stroke of each pumping element (18).
摘要翻译： 高压泵（7）包括通过相应的抽吸和输送冲程以往复运动致动的多个泵送元件（18）。 每个泵送元件（18）设置有与由低压泵（9）供应的进气管（10）连通的对应的进气阀（25）。 设置在进气管（10）上的是一个开关电磁阀（27），其具有基本上与喷射器（5）可喷射的最大燃料量相同数量级的流量。 电磁阀（27）以与每个泵送元件（18）的吸入冲程的中间部分（32）同步的方式被切断地控制。
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5.发明申请Gas feeding system for an internal combustion engine, having a presssure reducing valve controlled by a pilot pressure 失效用于内燃机的气体供给系统，具有由先导压力控制的减压阀公开(公告)号：US20050241624A1
公开(公告)日：2005-11-03
申请号：US11054558
申请日：2005-02-10
CPC分类号： F02M21/0239 , F02D19/022 , F02M21/0233 , F02M21/0242 , F02M21/0245 , G05D16/2093 , Y02T10/32
摘要： In a gas-supply system for internal-combustion engines, a pressure-reducing valve is set between the reservoir of the gas and a distribution manifold or rail that feeds the gas to a series of electromagnetically controlled injectors associated to the various cylinders of the engine. The pressure-reducing valve brings about a pressure drop which depends upon a pilot-pressure signal that is sent thereto by a pilot solenoid valve. The electrical supply to the solenoid of said pilot solenoid valve is controlled by an electronic control unit according to the signal issued by a sensor of the pressure in the rail for the purpose of regulating the pressure in the rail at a desired level, according to the operating conditions of the engine.
摘要翻译： 在用于内燃机的气体供应系统中，减压阀设置在气体储存器和分配歧管或轨道之间，该分配歧管或轨道将气体供给到与发动机的各个气缸相关联的一系列电磁控制的喷射器 。 减压阀产生一个压降，这取决于由先导电磁阀送到其上的先导压力信号。 根据由传感器发出的信号，由电子控制单元控制所述先导电磁阀的螺线管的电力供应，以便将轨道中的压力调节到期望的水平，根据 发动机的运行条件。
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6.发明申请Gas feeding system for an internal combustion engine, having an improved pressure reducing valve 失效一种用于内燃机的气体供给系统，具有改进的减压阀公开(公告)号：US20050241623A1
公开(公告)日：2005-11-03
申请号：US11054545
申请日：2005-02-10
CPC分类号： F02M21/0239 , F02D19/022 , F02M21/0233 , F02M21/0242 , F02M21/0245 , Y02T10/32 , Y10T137/7793
摘要： In a gas-supply system for internal-combustion engines, a pressure-reducing valve is set between the reservoir of the gas and a distribution manifold or rail that feeds the gas to a series of electromagnetically controlled injectors associated to the various cylinders of the engine. The pressure-reducing valve has a piston member that faces a chamber set downstream of a restricted passage defined inside the body of the valve in communication between the inlet connector and the outlet connector. The piston member is pushed by thrust means towards a position in which it causes opening of an open/close element that controls the communication between said restricted passage and the inlet connector. The piston member is preferably provided with a single seal gasket that prevents leakage of gas towards the outside through the sliding coupling of the piston member within the respective guide bushing. The thrust means to which the piston member is subject may be constituted by spring means, or else by a pilot-pressure signal, in the case where it is intended to obtain a variable reduction of the pressure according to the operating conditions of the system.
摘要翻译： 在用于内燃机的气体供应系统中，减压阀设置在气体储存器和分配歧管或轨道之间，该分配歧管或轨道将气体供给到与发动机的各个气缸相关联的一系列电磁控制的喷射器 。 减压阀具有活塞构件，该活塞构件面对设置在限定通道的下游的室，限定通道限定在入口连接器和出口连接器之间连通的阀体内部。 活塞构件被推动装置推向其中导致打开/关闭元件的打开位置，该位置控制所述限制通道和入口连接器之间的连通。 活塞构件优选地设置有单个密封垫圈，其通过活塞构件在相应导向衬套内的滑动联接来防止气体向外部泄漏。 在旨在根据系统的操作条件获得压力可变减小的情况下，活塞构件所承受的推力装置可以由弹簧装置构成，或者由先导压力信号构成。
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7.发明申请公开(公告)号：US20050067025A1
公开(公告)日：2005-03-31
申请号：US10953535
申请日：2004-09-30
CPC分类号： F16K17/383 , Y10T137/7929
摘要： A safety valve for pressurized tanks, particularly for tanks for containing methane or LPG for motor vehicles, comprises an open/close element that is kept by elastic means in a closing position, in which it does not enable communication of the internal cavity of the tank with the external atmosphere. When a pre-set maximum value of the pressure inside the tank is exceeded, sufficient for overcoming the load of said elastic means, the open/close element is displaced from its closing position and enables discharge of the gas contained in the tank into the external atmosphere. The elastic means are arranged in series with a fuse element, which is set between the open/close element and the valve body. In this way, whenever the temperature -exceeds a pre-set maximum value, the fuse element melts, causing unloading of said elastic means, which consequently leaves the open/close element free to open. Preferably, associated to the open/close element are sensor means for detecting the displacement of the open/close element from its closing position, which are designed to signal intervention of the safety valve to the driver.
摘要翻译： 用于加压罐的安全阀，特别是用于容纳用于机动车辆的甲烷或液化石油气的罐的包括开/关元件，其通过弹性装置保持在关闭位置，其中不能使罐的内腔连通 与外在的气氛。 当超过罐内压力的预设最大值时，足以克服所述弹性装置的负载，打开/关闭元件从其关闭位置移位，并且能够将包含在罐中的气体排放到外部 大气层。 弹性装置与设置在打开/关闭元件和阀体之间的保险丝元件串联布置。 以这种方式，每当温度达到预定的最大值时，熔丝元件熔化，导致所述弹性装置的卸载，从而使打开/关闭元件自由打开。 优选地，与打开/关闭元件相关联的是用于检测打开/关闭元件从其关闭位置的位移的传感器装置，其被设计成将安全阀的干预信号发送到驾驶员。
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8.发明申请Connection system for a tubular rail for high-pressure fluid and a system for reducing the size of the rail 有权用于高压流体的管状轨道的连接系统和用于减小轨道尺寸的系统公开(公告)号：US20070006850A1
公开(公告)日：2007-01-11
申请号：US11365759
申请日：2006-03-01
CPC分类号： F02M55/025 , F02M2200/8069
摘要： In order to reduce the size of a tubular rail for a high-pressure fluid, the rail is obtained from a hollow body with an external diameter and an internal diameter, and has two terminal portions, each provided with an external milling to favour gripping thereof. The millings have an external diameter such as to ensure, together with a cylindrical portion of a coaxial element, a radial strength at least equal to that of the hollow body. Made between the hollow body and each cylindrical portion is a front connection. For this purpose, the cylindrical portion has a plane front surface, whilst each terminal portion has an internal milling with an internal diameter greater than the internal diameter of the hollow body so as to house the cylindrical portion and so as to form an annular shoulder. A washer of softer material is set between the annular shoulder and the front surface.
摘要翻译： 为了减小用于高压流体的管状轨道的尺寸，轨道由具有外径和内径的中空体获得，并且具有两个端部，每个末端部分设置有外铣以有助于夹持 。 研磨具有外径，以确保与同轴元件的圆柱形部分一起至少等于中空体的径向强度。 在中空体和每个圆柱形部分之间形成的是前连接。 为此，圆柱形部分具有平面前表面，而每个端部具有内径大于中空体内径的内铣，从而容纳圆柱形部分并形成环形肩部。 在环形肩部和前表面之间设置较软材料的垫圈。
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9.发明申请Gas feeding system for an internal combustion engine, having a pressure reducing valve and a pressure regulating solenoid valve 失效一种用于内燃机的气体供给系统，具有减压阀和压力调节电磁阀公开(公告)号：US20050241625A1
公开(公告)日：2005-11-03
申请号：US11054561
申请日：2005-02-10
CPC分类号： F02M21/0239 , F02M21/0209 , F02M21/0233 , F02M21/0242 , F02M21/0245 , G05D16/2093 , Y02T10/32
摘要： In a gas-supply system for internal-combustion engines, a pressure-reducing valve is set between the reservoir of the gas and a distribution manifold or rail that feeds the gas to a series of electromagnetically controlled injectors associated to the various cylinders of the engine. The reduced pressure supplied by the pressure-reducing valve is further reduced via a pressure-regulating solenoid valve, to an extent that depends upon the supply current of its solenoid. The electrical supply to the solenoid of said solenoid valve is controlled by an electronic control unit according to the signal issued by a sensor of the pressure in the rail and according to stored maps, which supply the optimal pressure value for each operating condition of the engine.
摘要翻译： 在用于内燃机的气体供应系统中，减压阀设置在气体储存器和分配歧管或轨道之间，该分配歧管或轨道将气体供给到与发动机的各个气缸相关联的一系列电磁控制的喷射器 。 由减压阀提供的减压通过压力调节电磁阀进一步减小到取决于其螺线管的供应电流的程度。 所述电磁阀的螺线管的电力供应由电子控制单元根据由传感器发出的信号在轨道中的压力和根据存储的映射来控制，该映射为发动机的每个操作条件提供最佳压力值 。
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公开(公告)号：US20050127210A1
公开(公告)日：2005-06-16
申请号：US11007286
申请日：2004-12-09
CPC分类号： F02M21/0272 , F02M21/0242 , F02M21/0254 , F02M51/0642 , F02M69/145 , F02M69/18 , Y02T10/32
摘要： The invention describes an injector device specifically designed for the injection of an alternative fuel such as LPG, methane, hydrogen or others, in an internal combustion engine. In the injector device, the shutter ensuring sealing in closing condition is separated with respect to the metering means with gauged hole, which perform the function of metering fuel during injection, and it is arranged downstream from said metering means. The shutter is controlled by a solenoid, which is again arranged on the downstream side with respect to said metering means.
摘要翻译： 本发明描述了专门设计用于在内燃机中注入替代燃料例如LPG，甲烷，氢气或其它燃料的喷射器装置。 在注射器装置中，确保关闭状态下的密封的闸门相对于具有测量孔的计量装置分离，其具有在注射期间计量燃料的功能，并且其布置在所述计量装置的下游。 快门由螺线管控制，螺线管相对于所述计量装置再次布置在下游侧。
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