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1. 发明授权

US5996912A Flat needle for pressurized swirl fuel injector 失效
标题翻译：用于加压涡流燃油喷射器的平针
公开(公告)号：US5996912A
公开(公告)日：1999-12-07
申请号：US999411
申请日：1997-12-23
申请人： Wei-Min Ren , Jingming Jim Shen
发明人： Wei-Min Ren , Jingming Jim Shen
IPC分类号： F02M51/06 , F02M51/08 , F02M61/16 , F02M61/18
CPC分类号： F02M61/18 , F02M51/0667 , F02M51/0671 , F02M61/162 , F02M61/168
摘要： The injector nozzle includes a cylindrical needle which is axially reciprocated by an armature assembly. The needle has a needle tip terminating in a flat end surface with a spherical transition surface between the flat end surface and the side walls of the needle. Depending upon the diameter of the needle and the included angle of the valve seat, the diameter of the flat end surface may be less than the diameter of the orifice through the valve seat. The circular edge defined between the flat end surface and the spherical transition surface defines a location where the liquid fuel and air consistently separate from the needle in the valve-open condition whereby variations in the spray cone angle and the flow rate are minimized during steady-state and transient operating conditions.
摘要翻译：喷射器喷嘴包括由电枢组件轴向往复运动的圆柱形针。针头具有终端于扁平端面的针尖，在平坦端表面和针的侧壁之间具有球形过渡表面。根据针的直径和阀座的夹角，平坦端面的直径可以小于通过阀座的孔的直径。限定在平坦端表面和球形过渡表面之间的圆形边缘限定了液体燃料和空气在阀打开状态下与针头一致地分离的位置，从而在稳定状态期间喷雾锥角和流速的变化最小化，状态和瞬态操作条件。

2. 发明授权

US5878962A Pressure swirl injector with angled cone spray for fuel injection 失效
标题翻译：压力旋流喷油器，带锥形喷雾器用于燃油喷射
公开(公告)号：US5878962A
公开(公告)日：1999-03-09
申请号：US936247
申请日：1997-09-24
申请人： Jingming Jim Shen , Wei-Min Ren , David P. Wieczorek , Gyula A. Huszar
发明人： Jingming Jim Shen , Wei-Min Ren , David P. Wieczorek , Gyula A. Huszar
IPC分类号： F02B75/12 , F02M61/16 , F02M61/18 , F23D11/26 , F23D11/38 , F02M61/20 , B05B1/34 , F02M51/00
CPC分类号： F02M61/162 , F02M61/1806 , F23D11/26 , F23D11/383 , F02B2075/125 , Y02T10/123
摘要： A fuel injector has a swirl plate about a valve assembly, including a valve seat with an orifice and a valve pin. When the valve is opened, the fuel is swirled by the swirl plate for passage through the orifice. The orifice has a portion which is angled relative to the axis of the injector to provide a conical swirling spray pattern having a conical spray axis angularly related to the axis of the injector. In another form, the orifice is on-axis with the injector and receives a bent tube having an upstream on-axis portion and a downstream angled portion to direct the swirling conical spray at an included obtuse angle relative to the axis of the injector.
摘要翻译：燃料喷射器具有围绕阀组件的旋转板，包括具有孔口的阀座和阀销。当阀门打开时，燃料由涡流盘旋转以通过孔口。孔口具有相对于注射器的轴线成角度的部分，以提供具有与喷射器的轴线成角度相关的锥形喷射轴的锥形旋转喷雾图案。在另一种形式中，孔与注射器在轴上并且接收具有上游轴上部分和下游成角度部分的弯管，以相对于注射器的轴线引导旋转锥形喷雾器以包含的钝角。

3. 发明授权

US06499471B2 Hydraulic compensator for a piezoelectrical fuel injector 有权
标题翻译：用于压电燃油喷射器的液压补偿器
公开(公告)号：US06499471B2
公开(公告)日：2002-12-31
申请号：US09870998
申请日：2001-06-01
申请人： Jingming Jim Shen , Bogdan Gromek
发明人： Jingming Jim Shen , Bogdan Gromek
IPC分类号： F02M3704
CPC分类号： F02M61/08 , F02M51/0603 , F02M61/167 , F02M2200/26
摘要： A fuel injector comprises a body having a longitudinal axis, a piezoelectric actuator that has first and second ends, a needle coupled to the first end of the piezoelectric actuator, and a hydraulic compensator coupled the second end of the piezoelectric actuator. The piezoelectric actuator includes a plurality of piezoelectric elements along the axis between the first and second ends. The needle is movable between a first configuration permitting fuel injection and a second configuration preventing fuel injection. And the hydraulic compensator axially positions the piezoelectric actuator with respect to the body in response to temperature variation. Also, a method of compensating for thermal expansion or contraction of the fuel injector comprises providing fuel from a fuel supply to the fuel injector; and axially adjusting the piezoelectric actuator with respect to the body in response to temperature variation. The axially adjusting includes moving hydraulic oil through an orifice connecting first and second hydraulic oil reservoirs.
摘要翻译：燃料喷射器包括具有纵向轴线的主体，具有第一和第二端的压电致动器，联接到压电致动器的第一端的针和联接到压电致动器的第二端的液压补偿器。压电致动器包括沿着第一和第二端之间的轴线的多个压电元件。针可以在允许燃料喷射的第一配置和防止燃料喷射的第二配置之间移动。并且液压补偿器响应于温度变化将压电致动器相对于身体轴向定位。此外，补偿燃料喷射器的热膨胀或收缩的方法包括从燃料供给燃料喷射器提供燃料; 并响应于温度变化相对于主体轴向地调节压电致动器。轴向调节包括通过连接第一和第二液压油箱的孔口移动液压油。

4. 发明授权

US06173912B1 Plate valve for the dosing of liquids 失效
标题翻译：用于计量液体的平板阀
公开(公告)号：US06173912B1
公开(公告)日：2001-01-16
申请号：US09336332
申请日：1999-06-18
申请人： Bernhard Gottlieb , Andreas Kappel , Randolf Mock , Bernhard Fischer , Hans Meixner , Jingming Jim Shen
发明人： Bernhard Gottlieb , Andreas Kappel , Randolf Mock , Bernhard Fischer , Hans Meixner , Jingming Jim Shen
IPC分类号： F02M6100
CPC分类号： F16K1/38 , F02M61/08
摘要： In a plate valve, particularly a cone spray valve, the valve gap, or respectively, seal gap (6) which is present in the open condition is not designed with parallel faces, but with cross-sectional areas which remain the same given increasing radius. This approach applies to a set from the interior outward. The advantage consists in the avoidance of cavitation and in the achievement of a low closing force for sealing the valve.
摘要翻译：在平板阀，特别是锥形喷雾阀中，处于打开状态的阀间隙或分别的密封间隙（6）不是设计成具有平行面，但横截面积保持相同的给定增加半径。这种方法适用于从内部向外的一组。其优点在于避免气蚀和实现用于密封阀的低闭合力。

5. 发明授权

US06345771B1 Multiple stack piezoelectric actuator for a fuel injector 失效
标题翻译：用于燃料喷射器的多堆叠压电致动器
公开(公告)号：US06345771B1
公开(公告)日：2002-02-12
申请号：US09606537
申请日：2000-06-30
申请人： Bogdan Gromek , Jingming Jim Shen
发明人： Bogdan Gromek , Jingming Jim Shen
IPC分类号： F02D106
CPC分类号： F02M61/167 , F02M51/0603 , F02M61/08
摘要： A fuel injector comprises a tube assembly, a seat secured at an end of the tube assembly, a stem assembly movable with respect to the seat, a first set of piezoelectric elements connected to the stem assembly, and a second set of piezoelectric elements connected to the first set of piezoelectric elements. The tube assembly has a longitudinal axis extending between a first end and a second end and the seat defines an opening. The stem assembly moves along the axis between a first position wherein the stem assembly contiguously engages the seat such that fuel flow through the opening is prevented and a second position wherein the stem assembly is spaced from the seat such that fuel flow through the opening is permitted. The first set of piezoelectric elements electromechanically extend and contract along the axis in response to a first electric field, and the second set of piezoelectric elements electromechanically extend and contract along the axis in response to a second electric field.
摘要翻译：燃料喷射器包括管组件，固定在管组件的端部的座，相对于座可移动的杆组件，连接到杆组件的第一组压电元件和连接到杆组件的第二组压电元件第一组压电元件。管组件具有在第一端和第二端之间延伸的纵向轴线，并且座部限定开口。杆组件沿着轴线移动在第一位置之间，其中杆组件连续地接合座，使得防止燃料流过开口的流动;以及第二位置，其中杆组件与座隔开，使得燃料流过开口被允许。所述第一组压电元件响应于第一电场以机电方式延伸和收缩，并且所述第二组压电元件响应于第二电场以机电方式延伸和收缩。

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