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51.发明授权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：US07073490B2
公开(公告)日：2006-07-11
申请号：US11054545
申请日：2005-02-10
IPC分类号： F02B53/04
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 (valve head) 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一个打开/关闭元件（阀头）的位置，该打开/关闭元件（阀头）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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公开(公告)号：US07182067B2
公开(公告)日：2007-02-27
申请号：US11110300
申请日：2005-04-20
IPC分类号： F02M37/04
CPC分类号： F02D41/3845 , F02D41/402 , F02M59/366 , F02M63/0225 , Y02T10/44
摘要： The injection system (1) includes a pump (7) for supplying high-pressure fuel to a storage volume, defined for example by a common rail (6), for supplying a number of injectors (5). The pump (7) has at least one reciprocating pumping member (18) with a sinusoidal compression stroke (24). The injection system (1) includes at least one bypass solenoid valve (14) controlled by a control unit (16) having a chopper unit (28) for producing multiple deliveries (29, 31) at each compression stroke (24), so that the pressure in the common rail (6) is substantially level. Each pumping member (18) may be associated with a corresponding bypass solenoid valve (14).
摘要翻译： 注射系统（1）包括用于将高压燃料供应到例如由共轨（6）限定的用于供应多个喷射器（5）的存储容积的泵（7）。 泵（7）具有至少一个具有正弦压缩冲程（24）的往复泵送构件（18）。 注射系统（1）包括由具有斩波器单元（28）的控制单元（16）控制的至少一个旁路电磁阀（14），用于在每个压缩冲程（24）下产生多个输送（29,31），使得 共轨（6）中的压力基本上是水平的。 每个泵送构件（18）可以与相应的旁路电磁阀（14）相关联。
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53.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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54.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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56.发明授权公开(公告)号：US07305969B2
公开(公告)日：2007-12-11
申请号：US11365759
申请日：2006-03-01
IPC分类号： F02M37/04
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.
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57.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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58.发明申请公开(公告)号：US20060102151A1
公开(公告)日：2006-05-18
申请号：US11113502
申请日：2005-04-25
申请人： Mario Ricco , Sisto Matthaeis , Raffaele Ricco , Domenico Lepore
发明人： Mario Ricco , Sisto Matthaeis , Raffaele Ricco , Domenico Lepore
IPC分类号： F02M63/00
CPC分类号： F02M59/366 , F02M47/027 , F02M59/102 , F02M59/466 , F02M63/0225
摘要： The injection system (1) comprises a pump (7) designed to send fuel at high pressure to an accumulation volume, for example formed by a common rail (6), for supplying a plurality of injectors (5). The pump (7) comprises at least one pumping element (18) actuated with reciprocating motion with a compression stroke (Pi-Ps) at a sinusoidal speed (24), in synchronism with each step of fuel injection. The injection system (1) comprises at least one by-pass solenoid valve (14), which is controlled by a chopper control unit (16, 28) for modulating the delivery of the pumping element (18) by varying both the instant of start (To) and the instant of end (T1) of delivery during the compression stroke (Pi-Ps), in such a way that the delivery is synchronous with the injection phase.
摘要翻译： 注射系统（1）包括设计成将高压燃料（例如由公共导轨（6）形成）用于供应多个喷射器（5）的积聚体积的泵（7）。 泵（7）包括与燃料喷射的每个步骤同步的以正弦速度（24）与压缩冲程（Pi-Ps）的往复运动致动的至少一个泵送元件（18）。 注射系统（1）包括至少一个旁路电磁阀（14），其由斩波控制单元（16,28）控制，用于通过改变启动时刻来调节泵送元件（18）的输送 （Pi）和压缩行程（Pi-Ps）期间的交货时间（T 1）和交货时间（T 1 SUB）之间的差异。
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公开(公告)号：US07036491B2
公开(公告)日：2006-05-02
申请号：US11054558
申请日：2005-02-10
IPC分类号： F02B43/00
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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60.发明申请Device for regulating pressure/flow in an internal combustion engine fuel injection system 有权用于调节内燃机燃油喷射系统中的压力/流量的装置公开(公告)号：US20060000448A1
公开(公告)日：2006-01-05
申请号：US11096874
申请日：2005-04-01
IPC分类号： F02M63/00
CPC分类号： F02D41/3863 , F02D2200/0602 , F02M63/0225 , F02M63/0245
摘要： The injection system (1) includes a storage volume (6) of pressurized fuel supplied by a high-pressure pump (7) along a delivery pipe (8); and a control unit (16) for defining the required fuel pressure of the storage volume (6) as a function of the operating conditions of the engine (2). The regulating device includes a bypass solenoid valve (14); and a pair of non-return valves (32, 33) connected antiparallel and located between the bypass valve (14) and the storage volume (6). One of the non-return valves (32, 33) permits fuel drainage from the storage volume (6) to the bypass valve (14) when the control unit (16) defines a predetermined reduction (Δp) in the fuel pressure of the storage volume (6).
摘要翻译： 注射系统（1）包括沿着输送管（8）由高压泵（7）供应的加压燃料的储存容积（6）; 以及用于根据发动机（2）的操作条件来定义存储容积（6）的所需燃料压力的控制单元（16）。 调节装置包括旁路电磁阀（14）; 以及一对逆并联并位于旁通阀（14）和存储容积（6）之间的止回阀（32,33）。 当控制单元（16）在存储器的燃料压力中限定预定的减小（Deltap）时，其中一个止回阀（32,33）允许从储存容积（6）到旁通阀（14）的燃料排放 卷（6）。
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