公开(公告)号：US06575138B2

公开(公告)日：2003-06-10

申请号：US09863187

申请日：2001-05-23

Applicant: Alan B. Welch ,  Irawan Rahardja ,  Mike Hebbes

Inventor： Alan B. Welch ,  Irawan Rahardja ,  Mike Hebbes

IPC: F02M5502

CPC classification number: F02D41/20 ,  F02B2275/14 ,  F02D41/2096 ,  F02D2041/2037 ,  F02M21/0254 ,  F02M21/0269 ,  F02M51/005 ,  F02M51/0603 ,  F02M51/0607 ,  F02M61/08 ,  F02M61/10 ,  F02M61/166 ,  F02M61/167 ,  F02M2200/30 ,  F02M2200/304 ,  F02M2200/507 ,  Y02T10/123 ,  Y02T10/32

Abstract: A directly actuated injection valve comprises a hollow valve housing, a valve member disposed within the hollow interior, a biasing mechanism, an actuator assembly and a passive hydraulic link assembly. The valve member is movable between a closed position and an open position for governing the flow of fuel into the combustion chamber of an internal combustion engine. The biasing mechanism, preferably a spring, biases the valve member in the closed position. The actuator assembly generates an opening force that acts against the valve spring to open the valve. The hydraulic link assembly is interposed between the valve member and the valve spring and the actuator assembly. The hydraulic link assembly transmits respective closing and opening forces to the valve member. The hydraulic link preferably comprises a piston disposed within a cylinder that is filled with a hydraulic fluid.

Abstract translation: 直接致动的喷射阀包括中空阀壳体，设置在中空内部的阀构件，偏置机构，致动器组件和被动液压连杆组件。 阀构件可以在关闭位置和打开位置之间移动，以控制进入内燃机的燃烧室的燃料流。 偏置机构，优选地是弹簧，将阀构件偏置在关闭位置。 致动器组件产生作用于阀弹簧以打开阀的打开力。 液压连杆组件介于阀构件和阀弹簧和致动器组件之间。 液压连杆组件将相应的关闭和打开力传递到阀构件。 液压连杆优选地包括设置在充满液压流体的气缸内的活塞。

公开(公告)号：US20100219360A1

公开(公告)日：2010-09-02

申请号：US12727785

申请日：2010-03-19

Applicant: David Mumford ,  Alan Welch ,  Alain Touchette ,  Mike Hebbes ,  Richard Wing

Inventor： David Mumford ,  Alan Welch ,  Alain Touchette ,  Mike Hebbes ,  Richard Wing

IPC: F16K31/12 ,  F16K31/02 ,  F16K31/44

CPC classification number: F16K31/004 ,  F02D41/20 ,  F02D41/2096 ,  F02D2041/2037 ,  F02M51/0603 ,  F02M61/10 ,  F02M61/168 ,  F02M2200/02 ,  F02M2200/304 ,  F02M2200/703

Abstract: A method is provided for operating a directly actuated valve that comprises a strain-type actuator to actuate a valve member to travel between a closed position and an open position, the method comprising transmitting displacements from the strain-type actuator to the valve member, maintaining a compressive stress on the actuator that is greater than a predetermined minimum stress by applying a pre-load compressive stress and limiting to less than predetermined limits at least one of: (a) acceleration and deceleration of the valve member when moving between open positions and the closed position; and (b) velocity of said valve member immediately before contacting the valve seat.

Abstract translation: 提供了一种用于操作直接致动的阀的方法，该阀包括应变型致动器以致动阀构件在关闭位置和打开位置之间行进，所述方法包括将应变型致动器的位移传递到阀构件，保持 所述致动器上的压缩应力大于预定的最小应力，通过施加预负荷压缩应力并且限制在小于预定限度以下至少之一中：（a）当在打开位置之间移动时所述阀构件的加速和减速;以及 关闭位置; 和（b）在接触阀座之前所述阀构件的速度。

公开(公告)号：US06584958B2

公开(公告)日：2003-07-01

申请号：US09863188

申请日：2001-05-23

Applicant: Irawan Rahardja ,  Mike Hebbes

Inventor： Irawan Rahardja ,  Mike Hebbes

IPC: F02M4100

CPC classification number: F02M61/167 ,  F02B2275/14 ,  F02D19/024 ,  F02D19/025 ,  F02D41/20 ,  F02D41/2096 ,  F02D2041/2037 ,  F02M21/0254 ,  F02M21/0263 ,  F02M21/0275 ,  F02M21/0296 ,  F02M51/005 ,  F02M51/0607 ,  F02M61/08 ,  F02M61/10 ,  F02M61/166 ,  F02M2200/30 ,  F02M2200/304 ,  F02M2200/507 ,  Y02T10/123 ,  Y02T10/32

Abstract: A directly actuated injection valve comprises a hollow valve housing, a valve needle disposed within the hollow interior, a needle spring and a tubular magnetostrictive actuator assembly disposed in an annular space around a portion of the valve needle. A magnetic field activates the magnetostrictive material to change its length to cause a corresponding movement of the valve needle that actuates the valve. The valve needle is formed from a ferromagnetic material and extends through the tubular magnetostrictive actuator assembly without interfering with the flux field that is directed through the magnetostrictive member. A passive hydraulic link assembly is preferably employed to compensate for component wear, temperature effects and manufacturing variations within design tolerances.

Abstract translation: 直接致动的喷射阀包括中空阀壳体，设置在中空内部的阀针，针弹簧和管状磁致伸缩致动器组件，其设置在围绕阀针的一部分的环形空间中。 磁场激活磁致伸缩材料以改变其长度，以引起致动阀的阀针的相应运动。 阀针由铁磁材料形成并且延伸穿过管状磁致伸缩致动器组件而不干扰通过磁致伸缩构件的磁通场。 被动液压连杆组件优选地用于补偿部件磨损，温度影响和设计公差内的制造变化。

公开(公告)号：US08413638B2

公开(公告)日：2013-04-09

申请号：US12727785

申请日：2010-03-19

Applicant: David Mumford ,  Alan Welch ,  Alain Touchette ,  Mike Hebbes ,  Richard Wing

Inventor： David Mumford ,  Alan Welch ,  Alain Touchette ,  Mike Hebbes ,  Richard Wing

IPC: F02M51/00

CPC classification number: F16K31/004 ,  F02D41/20 ,  F02D41/2096 ,  F02D2041/2037 ,  F02M51/0603 ,  F02M61/10 ,  F02M61/168 ,  F02M2200/02 ,  F02M2200/304 ,  F02M2200/703

Abstract: A method is provided for operating a directly actuated valve that comprises a strain-type actuator to actuate a valve member to travel between a closed position and an open position, the method comprising transmitting displacements from the strain-type actuator to the valve member, maintaining a compressive stress on the actuator that is greater than a predetermined minimum stress by applying a pre-load compressive stress and limiting to less than predetermined limits at least one of: (a) acceleration and deceleration of the valve member when moving between open positions and the closed position; and (b) velocity of said valve member immediately before contacting the valve seat.

Abstract translation: 提供了一种用于操作直接致动的阀的方法，该阀包括应变型致动器以致动阀构件在关闭位置和打开位置之间行进，所述方法包括将应变型致动器的位移传递到阀构件，保持 所述致动器上的压缩应力大于预定的最小应力，通过施加预负荷压缩应力并且限制在小于预定限度以下至少之一中：（a）当在打开位置之间移动时所述阀构件的加速和减速;以及 关闭位置; 和（b）在接触阀座之前所述阀构件的速度。

公开(公告)号：US06564777B2

公开(公告)日：2003-05-20

申请号：US09863189

申请日：2001-05-23

Applicant: Irawan Rahardja ,  Mike Hebbes

Inventor： Irawan Rahardja ,  Mike Hebbes

IPC: F02M5502

CPC classification number: F02M61/166 ,  F02B2275/14 ,  F02D41/20 ,  F02D41/2096 ,  F02D2041/2037 ,  F02M21/0254 ,  F02M21/0263 ,  F02M21/0296 ,  F02M51/005 ,  F02M51/0607 ,  F02M61/08 ,  F02M61/10 ,  F02M61/167 ,  F02M2200/30 ,  F02M2200/304 ,  F02M2200/507 ,  Y02T10/123 ,  Y02T10/32

Abstract: A directly actuated injection valve comprises a hollow valve housing, a valve needle disposed within the hollow interior, a needle spring, and a magnetostrictive actuator assembly disposed in an annular space around a portion of the valve needle. A magnetic field actuates the magnetostrictive material to change its length to cause a corresponding movement of the valve needle that actuates the valve. The valve needle is comprises of a plurality of magnetostrictive actuator assembly is formed from a non-ferromagnetic material and the portion of the needle comprising the needle tip, which contacts the valve seat, is formed from a different material that has higher through-hardness than that the non-ferromagnetic material. The portion of the needle formed from a non-ferromagnetic material prevents interference with the flux field that is directed through the magnetostrictive member.

Abstract translation: 直接致动的喷射阀包括中空阀壳体，设置在中空内部内的阀针，针弹簧和设置在围绕阀针的一部分的环形空间中的磁致伸缩致动器组件。 磁场致动磁致伸缩材料以改变其长度以引起致动阀的阀针的相应运动。 阀针由多个磁致伸缩致动器组件构成，其由非铁磁材料形成，并且包括与针阀座接触的针尖的针的部分由不同于穿过硬度高于 非铁磁材料。 由非铁磁材料形成的针的部分防止对通过磁致伸缩构件的磁通场的干扰。

公开(公告)号：US06298829B1

公开(公告)日：2001-10-09

申请号：US09522130

申请日：2000-03-09

Applicant: Alan B. Welch ,  Irawan Rahardja ,  Mike Hebbes

Inventor： Alan B. Welch ,  Irawan Rahardja ,  Mike Hebbes

IPC: F02M4100

CPC classification number: F02M61/167 ,  F02B2275/14 ,  F02D19/024 ,  F02D41/20 ,  F02D41/2096 ,  F02D2041/2037 ,  F02M21/0254 ,  F02M21/0263 ,  F02M51/005 ,  F02M51/0607 ,  F02M61/08 ,  F02M61/10 ,  F02M61/166 ,  F02M2200/30 ,  F02M2200/304 ,  F02M2200/507 ,  Y02T10/123 ,  Y02T10/32

Abstract: A directly actuated injection valve comprises a hollow valve housing, a valve needle disposed within the hollow interior, a needle spring, an actuator assembly, and a hydraulic link assembly. The valve needle is movable between a closed position and an open position for governing the flow of fuel into the combustion chamber of an internal combustion engine. The displacement of the valve needle from the closed position is defined as the lift. The a needle spring biases the valve needle in the closed position. The actuator assembly generates an opening force that acts against the needle spring to open the valve. The hydraulic link assembly is interposed between the valve needle and the needle spring and the actuator assembly. The hydraulic link assembly transmits respective closing and opening forces to the valve needle. The hydraulic link preferably comprises a piston disposed within a cylinder 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 and the head and base of the hydraulic cylinder. In the preferred embodiment, the thickness of the hydraulic fluid trapped between the piston and cylinder head 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, the movements of the valve needle 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, and to reduce the impact of the valve needle on the valve seat upon closing.

Abstract translation: 直接致动的喷射阀包括中空阀壳体，设置在中空内部内的阀针，针弹簧，致动器组件和液压连杆组件。 阀针可在关闭位置和打开位置之间移动，用于控制进入内燃机燃烧室的燃料流。 阀针从关闭位置的位移被定义为电梯。 针弹簧将阀针偏压在关闭位置。 致动器组件产生作用于针簧的打开力以打开阀。 液压连杆组件介于阀针与针簧和致动器组件之间。 液压连杆组件将相应的关闭和打开力传递到阀针。 液压连杆优选地包括设置在充满液压流体的气缸内的活塞。 打开和关闭力通过被夹在活塞的平面和液压缸的头部和底部之间的液压流体的厚度传递。 在优选实施例中，捕获在活塞和气缸盖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节，以在致动器组件被激活时保持期望的阀针升程 。 当致动器组件包括磁致伸缩或压电构件时，可以通过施加成形的控制脉冲或波形来控制阀针的移动，以提高阀针的打开和关闭运动的速度，并且减少冲击 关闭阀座上的阀针。