Injection system for an internal-combustion engine
    5.
    发明授权
    Injection system for an internal-combustion engine 有权
    内燃机喷油系统

    公开(公告)号:US07509943B2

    公开(公告)日:2009-03-31

    申请号:US11937625

    申请日:2007-11-09

    IPC分类号: F02M55/02 F02M63/02

    摘要: A fuel-injection system (1, 1′, 1″) for an internal-combustion engine (2), of the type provided with compressor mechanism (4) for making available the fuel at a high pressure to an storage volume (7), and a plurality of injectors (8, 8″) fluidically connected to the storage volume (7) for taking in the fuel from the storage volume (7) and injecting it into respective combustion chambers (12) of the engine (2). The compressor mechanism (4) advantageously generates at least two distinct delivery lines (14), which are connected to respective distinct fractions (16) of the storage volume (7).

    摘要翻译: 一种用于内燃机(2)的燃料喷射系统(1,1',1“),该燃料喷射系统具有压缩机构(4),该压缩机构用于将高压燃料提供给存储容积(7 )和流体连接到存储容积(7)的多个喷射器(8,8“),用于从存储容积(7)吸入燃料并将其注入发动机(2)的相应的燃烧室(12) )。 压缩机构(4)有利地产生至少两个不同的输送管线(14),其连接到存储容积(7)的相应不同部分(16)。

    High-pressure pump with a device for regulating the flow rate for a fuel-injection system
    6.
    发明授权
    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:US07263979B2

    公开(公告)日:2007-09-04

    申请号:US11114091

    申请日:2005-04-26

    IPC分类号: F02M37/04

    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。

    Injection system for an internal-combustion engine
    7.
    发明授权
    Injection system for an internal-combustion engine 有权
    内燃机喷油系统

    公开(公告)号:US07305968B2

    公开(公告)日:2007-12-11

    申请号:US11097123

    申请日:2005-04-04

    IPC分类号: F02M55/02 F02M63/02

    摘要: A fuel-injection system (1, 1′, 1″) for an internal-combustion engine (2), of the type provided with compressor mechanism (4) for making available the fuel at a high pressure to an storage volume (7), and a plurality of injectors (8, 8″) fluidically connected to the storage volume (7) for taking in the fuel from the storage volume (7) and injecting it into respective combustion chambers (12) of the engine (2). The compressor mechanism (4) advantageously generates at least two distinct delivery lines (14), which are connected to respective distinct fractions (16) of the storage volume (7).

    摘要翻译: 一种用于内燃机(2)的燃料喷射系统(1,1',1“),该燃料喷射系统具有压缩机构(4),该压缩机构用于将高压燃料提供给存储容积(7 )和流体连接到存储容积(7)的多个喷射器(8,8“),用于从存储容积(7)吸入燃料并将其注入发动机(2)的相应的燃烧室(12) )。 压缩机构(4)有利地产生至少两个不同的输送管线(14),其连接到存储容积(7)的相应不同部分(16)。

    Fuel injection system comprising a high-pressure variable-delivery pump
    8.
    发明授权
    Fuel injection system comprising a high-pressure variable-delivery pump 有权
    燃料喷射系统包括高压可变输送泵

    公开(公告)号:US07784447B2

    公开(公告)日:2010-08-31

    申请号:US11108201

    申请日:2005-04-18

    IPC分类号: F02M37/00

    CPC分类号: F02M59/366 F02M63/0225

    摘要: The injection system has a high-pressure pump (7) having at least one pumping element (18) operated reciprocatingly to perform an intake stroke and a delivery stroke. Each pumping element (18) has a corresponding intake valve (25) communicating with an intake conduit (10) supplied by a low-pressure pump (9). The intake conduit (10) is fitted with an on-off solenoid valve (27) controlled by a control unit (16) asynchronously with respect to the intake of each pumping element (18). And the control unit (16) may control the on-off solenoid valve (27) by means of frequency-modulated and/or duty-cycle-modulated control signals (A, C).

    摘要翻译: 注射系统具有高压泵(7),其具有往复运动的至少一个泵送元件(18),以执行进气冲程和输送冲程。 每个泵送元件(18)具有与由低压泵(9)供应的进气管道(10)连通的对应的进气阀(25)。 进气管道(10)装配有由控制单元(16)控制的通电电磁阀(27),其相对于每个泵送元件(18)的进气异步。 并且控制单元(16)可以通过调频和/或占空比调制的控制信号(A,C)来控制通断电磁阀(27)。

    Gas feeding system for an internal combustion engine, having an improved pressure reducing valve
    10.
    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

    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。