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    • 41. 发明申请
    • DIRECTLY ACTUATED INJECTION VALVE
    • 直接执行注射阀
    • WO01029400A2
    • 2001-04-26
    • PCT/CA2000/001156
    • 2000-10-02
    • F02D41/20F02M21/02F02M47/00F02M47/04F02M51/00F02M51/06F02M61/08F02M61/10F02M61/16F02M63/00F01L9/04F02M41/20
    • F02M61/167F02B2275/14F02D19/024F02D41/20F02D41/2096F02D2041/2037F02M21/0254F02M21/0263F02M51/005F02M51/0607F02M61/08F02M61/10F02M61/166F02M2200/30F02M2200/304F02M2200/507Y02T10/123Y02T10/32
    • A directly actuated injection valve comprises a hollow valve housing (102), a valve needle (119) disposed within the hollow interior, a needle spring (116), an actuator assembly, and a hydraulic link assembly. The actuator assembly generates an opening force that acts against the needle spring (116) to open the valve. The hydraulic link assembly is interposed between the valve needle (114) and the needle spring (116) and the actuator assembly. The hydraulic link assembly transmits respective closing and opening forces to the valve needle (114). The hydraulic link preferably comprises a piston (114b) disposed within a cylinder (160) that is filled with a hydraulic fluid. The opening and closing forces are transmitted through a thickness of the hydraulic fluid that is trapped between the planar surfaces of the piston (114b) and the head (162) and base of the hydraulic cylinder. In the preferred embodiment, the thickness of the hydraulic fluid trapped between the piston (114b) and cylinder head (162) or base is automatically adjustable in response to changes in the dimensional relationship between components of the injection valve to maintain a desired valve needle lift when the actuator assembly is activated. When the actuator assembly comprises a magnetostrictive or piezoelectric member (130), the movements of the valve needle (114) can be controlled by the application of a shaped control pulse or waveform to improve the speed of the opening and closing motion of the valve needle (114), and to reduce the impact of the valve needle on the valve seat upon closing.
    • 直接致动的喷射阀包括中空阀壳体(102),设置在中空内部的阀针(119),针弹簧(116),致动器组件和液压连杆组件。 致动器组件产生作用于针簧(116)以打开阀的打开力。 液压连杆组件插入在阀针(114)和针簧(116)和致动器组件之间。 液压连杆组件将相应的关闭和打开力传递到阀针(114)。 液压连杆优选地包括设置在填充有液压流体的气缸(160)内的活塞(114b)。 打开和关闭力通过被夹在活塞(114b)的平面和头部(162)和液压缸底部之间的液压流体的厚度传递。 在优选实施例中,捕获在活塞(114b)和气缸盖(162)或底座之间的液压流体的厚度可以响应于喷射阀的部件之间的尺寸关系的变化自动调整,以保持所需的阀针提升 当致动器组件被激活时。 当致动器组件包括磁致伸缩或压电元件(130)时,可通过施加成形的控制脉冲或波形来控制阀针(114)的运动,以提高阀针的打开和关闭运动的速度 (114),并且在关闭时减小阀针对阀座的冲击。
    • 42. 发明申请
    • PIEZOELECTRIC ACTUATOR
    • 压电作动器
    • WO00052770A1
    • 2000-09-08
    • PCT/DE2000/000511
    • 2000-02-24
    • F02M51/06F02M59/46H01L41/047H01L41/083H02N2/04
    • F02M51/0603F02M51/005F02M63/0026H01L41/0471H01L41/0833H01L41/0835
    • The invention relates to a piezoelectric actuator, notably for actuating control valves or injectors of internal combustion engines of motor vehicles. Said actuator comprises a cylindrical piezoelectric actuator body (1) in the shape of a multilayer laminate made of superimposed layers of a piezoelectric material between which metallic or electrically conductive alternating first and second electrode layers (10, 11) are inserted which serve as electrodes. Said first and second electrode layers (10, 11) are alternately contacted by a first and second electrically conductive shared electrode terminal (12, 13). The piezoelectric actuator body (1) either has an internal longitudinal hole (2) and at least the first shared electrode terminal (12) is mounted on the inner wall (3) of the actuator body (1) embodied by the internal longitudinal hole (2) and there contacts the first electrode layer (10) or, alternatively, the actuator body (1) does not have an internal longitudinal hole and the first and second electrode layers (10, 11) are bare on the outer cylinder wall (4) of the actuator body (1) in angle-displaced points where they contact the first and second electrode terminals (12, 13).
    • 本发明涉及压电致动器,特别是用于对机动车辆的内燃机的控制或喷射阀的致动,具有一个圆筒形的压电致动器主体(1)中的压电材料的堆叠层的多层层压制品的形式,并且它们的金属或导电的,用作电极彼此之间 交替的第一和第二电极层(10,11),所述第一和第二电极层(10,11)分别由第一和第二导电共用电极端子(12,13)交替地接触。 压电致动器本体(1)具有任一内部纵向孔形成在穿过内部纵向孔(2),内壁(2)和至少第一共用电极端子(12)(3)的致动器本体(1)并且在那里与每个第一电极层( 10)接触。 可替换地,致动器本体(1),内纵向孔,并且第一和第二电极层(10,11)分别位于在上气缸外壁相互成角度偏移的位置(4)的致动器本体(1)的自由以及是否有在每种情况下与第一和第二电极端子 (12,13)接触。
    • 43. 发明申请
    • PIEZOELECTRIC ACTUATOR
    • 压电作动器
    • WO00036657A1
    • 2000-06-22
    • PCT/DE1999/003873
    • 1999-12-03
    • F02M51/00F02M51/06F02M59/46F02M63/00H01L41/053H01L41/083H02N2/04
    • F02M51/005F02M51/0603F02M63/0026H01L41/053H01L41/083
    • The invention relates to a piezoelectric actuator (1), especially for actuating control valves or injection valves of internal combustion engines in motor vehicles. Said actuator comprises a piezoelectric actuator body (1), especially in the form of a multilayered laminate consisting of tiered layers of piezoelectric material and metallic or electro-conductive layers which are arranged therebetween and which serve as electrodes. One of the front surfaces of the actuator body (1) is fixed to an actuator base (6) having good thermal conductibility or being metallic. The piezoelectric actuator is characterised in that at least one heat sink (5; 5.1, 5.2) with good thermal conductibility is connected to the lateral surfaces of the actuator body (1) and to the actuator base (6) in such a way that heat is conducted well.
    • 本发明涉及压电致动器(1),特别是用于致动在机动车辆内燃机的控制阀或喷射阀,具有压电致动器本体(1),特别是在压电材料的堆叠层的多层层压制品的形式,并且它们的金属或导电性之间,如 电极服务层,致动器本体的端面的一(1)到高导热性或金属致动器脚(6)固定,其特征在于,所述压电致动器的特征在于,至少一个良好的导热散热器(5; 5.1,5.2)具有良好导热性 致动器主体(1)和致动器脚(6)的侧表面连接。
    • 49. 发明申请
    • FUEL DISTRIBUTOR FOR FUEL INJECTION SYSTEMS IN INTERNAL COMBUSTION ENGINES
    • 燃油分配器用于内燃机燃油喷射系统
    • WO1990013741A1
    • 1990-11-15
    • PCT/DE1990000232
    • 1990-03-23
    • ROBERT BOSCH GMBHGMELIN, Karl
    • ROBERT BOSCH GMBH
    • F02M55/02
    • F02M51/005F02M53/04F02M69/465
    • A fuel distributor for fuel injection systems in internal combustion engines has an elongated distributor housing (11) with a plurality of receiving holes (12) arranged at an axial distance apart, each of which receives a fuel injection valve (10), and with at least one fuel line (13) which extends axially and passes tangentially in front of the receiving holes (12). Said fuel line communicates with the receiving holes (12) through openings (18). The fuel flows around the fuel injection valves (10) through the openings (18); this ensures the fuel supply as well as cooling. To improve the cooling efficiency, flow diaphragms (29) associated with each receiving hole (12) are arranged approximately in the centre of each opening (18). This results in forced flushing of the fuel injection valves (10) through approximately 360 DEG .
    • 用于内燃机中的燃料喷射系统的燃料分配器具有细长的分配器壳体(11),其具有多个沿轴向间隔布置的接收孔(12),每个容纳孔接收燃料喷射阀(10) 至少一个燃料管路(13),其沿轴向延伸并且在接收孔(12)的前方切向通过。 所述燃料管线通过开口(18)与接收孔(12)连通。 燃料通过开口(18)流过燃料喷射阀(10); 这确保燃料供应以及冷却。 为了提高冷却效率,与每个接收孔(12)相关联的流动隔膜(29)大致布置在每个开口(18)的中心。 这导致燃料喷射阀(10)被强制冲洗大约360度。
    • 50. 发明申请
    • METHOD AND APPARATUS FOR METERING FUEL
    • 计量燃料的方法和装置
    • WO1986000960A1
    • 1986-02-13
    • PCT/AU1985000176
    • 1985-08-01
    • ORBITAL ENGINE COMPANY PROPRIETARY LIMITEDMcKAY, Michael, Leonard
    • ORBITAL ENGINE COMPANY PROPRIETARY LIMITED
    • F02D07/02
    • F02M67/02F02D7/02F02M51/005F02M51/0653F02M51/066F02M51/0696
    • A method and apparatus for metering fuel to an engine wherein a continuous supply of fuel is provided by a pump (14) to a fixed capacity chamber (11) and gas under pressure is admitted periodically to said chamber to maintain in the chamber a pressure not greater than the fuel pressure, so that fuel will flow into the chamber as long as there is a pressure differential between the gas in the chamber and the fuel supply. A delivery port (20) in said chamber is open for substantially the duration of the period that gas is admitted to the chamber so that the fuel in the chamber at the time of admission of gas thereto, and fuel entering the chamber during the period of admission of gas, is delivered from the delivery port (20) to the engine. The pressure differential between the fuel supply and the gas in the chamber is controlled in accordance with the fuel demand of the engine to control the quantity of fuel delivered each cycle to the engine. A preferred form of each of a fuel referencing regulator (34), a fuel pressure regulator (16) and a metering and injection unit (25) are also disclosed.
    • 一种用于向发动机计量燃料的方法和装置,其中通过泵(14)向固定容量室(11)提供连续的燃料供应,并且在压力下的气体周期性地进入所述室以在室内维持压力 大于燃料压力,使得燃料将流入室中,只要在室中的气体和燃料供应之间存在压力差。 所述腔室中的输送口(20)在气体进入腔室期间的大部分持续时间内是开放的,使得在气体入口时腔室中的燃料和进入腔室的燃料在 从气体输送口(20)输送到发动机。 根据发动机的燃料需求来控制燃料供给与室内的气体之间的压力差,以控制每个循环到发动机的燃料量。 还公开了燃料参考调节器(34),燃料压力调节器(16)和计量和注射单元(25)中的每一个的优选形式。