公开(公告)号：US09255558B2

公开(公告)日：2016-02-09

申请号：US13860206

申请日：2013-04-10

Applicant: Delavan Inc

Inventor： Travis Raymond Burke ,  Neal Thomson ,  Douglas Westlake

IPC: F16K15/02 ,  F02M61/08 ,  F23N1/00 ,  F23R3/28 ,  F16K15/06

CPC classification number: F02M61/08 ,  F16K15/063 ,  F23N1/007 ,  F23N2035/24 ,  F23R3/283 ,  F23R2900/00012 ,  Y10T137/7838 ,  Y10T137/7925

Abstract: A valve assembly for a fuel injector that includes a sleeve member having an interior chamber, a piston member supported for movement within the interior chamber of the sleeve member and separating an upstream pressure side of the valve assembly from a downstream pressure side of the valve assembly, and a dynamic sealing device mounted to one of the sleeve member and the piston member for sealingly isolating the upstream pressure side of the valve assembly from the downstream pressure side of the valve assembly. The dynamic sealing assembly includes a PTFE seal member having a generally C-shaped cross-section defining an internal cavity having an opening about the outer periphery thereof the seal member, and a helical spring disposed within the internal cavity of the seal member for providing a constant sealing force to the seal member. The dynamic sealing device is positioned in the valve assembly so that the opening of the internal cavity of the seal member faces away from the upstream pressure side of the valve assembly and towards the downstream pressure side of the valve assembly.

Abstract translation: 一种用于燃料喷射器的阀组件，其包括具有内部腔室的套筒构件，活塞构件，其被支撑用于在套筒构件的内部腔室内移动，并将阀组件的上游压力侧与阀组件的下游压力侧分离 以及安装到套筒构件和活塞构件中的一个的动态密封装置，用于将阀组件的上游压力侧与阀组件的下游压力侧密封隔离。 该动态密封组件包括PTFE密封件，该PTFE密封件具有大体上C形的横截面，其限定了具有围绕其密封件的外周的开口的内腔，以及设置在密封件的内腔内的螺旋弹簧， 对密封件恒定的密封力。 动态密封装置定位在阀组件中，使得密封构件的内腔的开口面向离开阀组件的上游压力侧并朝向阀组件的下游压力侧。

公开(公告)号：US20140319401A1

公开(公告)日：2014-10-30

申请号：US13872970

申请日：2013-04-29

Applicant: DELAVAN INC

Inventor： Jason Allen Ryon ,  Chien-Jung Yu ,  Philip E. O. Buelow ,  Neal Thomson

IPC: F16K1/32

CPC classification number: F23R3/28 ,  F23K2301/206 ,  F23K2401/201 ,  F23K2900/05001

Abstract: A valve for regulating fluid flowing bidirectionally therethrough includes a first flow body defining a passage configured to direct fluid flow in a downstream direction defined from the inlet to the outlet. The inlet includes an enlargement configured to provide decreased resistance to fluid flow in the downstream direction relative to flow in an upstream direction opposite the downstream direction.

Abstract translation: 用于调节流体双向流动的阀通过其中包括限定通道的第一流动体，所述通道被构造成沿着从入口到出口限定的下游方向引导流体流动。 入口包括放大部件，其被构造成相对于沿着与下游方向相反的上游方向的流动而向下游方向提供降低的流体流动阻力。

公开(公告)号：US20150107706A1

公开(公告)日：2015-04-23

申请号：US14190991

申请日：2014-02-26

Applicant: DELAVAN INC.

Inventor： Jason Ryon ,  Neal Thomson ,  Philip Buelow

IPC: F16K47/04 ,  F16K15/06 ,  F16K15/02

CPC classification number: G05D7/0133 ,  Y10T137/8741

Abstract: A fluid flow control apparatus includes first and second bodies, an inlet, and an outlet. The first body includes a slot, and the second body includes a vortex chamber. The second body is moveable relative to the first body to align the slot and the vortex chamber. The vortex chamber includes a chamber inlet section, an orifice, and a tapered section that has a frustoconical shape and tapers from the chamber inlet section to the orifice. The chamber inlet section is in fluid communication with the slot when the vortex chamber is aligned with the slot. The inlet is in fluid communication with the slot, and the outlet is in fluid communication with the orifice.

Abstract translation: 流体流动控制装置包括第一和第二主体，入口和出口。 第一主体包括槽，第二主体包括涡流室。 第二主体相对于第一主体可移动，以使狭槽和涡流室对准。 涡流室包括腔室入口部分，孔口和锥形部分，其具有截头圆锥形状并从腔室入口部分到孔口逐渐变细。 当涡流室与槽对准时，室入口部分与槽口流体连通。 入口与槽流体连通，出口与孔流体连通。

公开(公告)号：US20140305521A1

公开(公告)日：2014-10-16

申请号：US13860206

申请日：2013-04-10

Applicant: DELAVAN INC

Inventor： Travis Raymond Burke ,  Neal Thomson ,  Douglas Westlake

IPC: F02M61/08

CPC classification number: F02M61/08 ,  F16K15/063 ,  F23N1/007 ,  F23N2035/24 ,  F23R3/283 ,  F23R2900/00012 ,  Y10T137/7838 ,  Y10T137/7925

Abstract: A valve assembly for a fuel injector that includes a sleeve member having an interior chamber, a piston member supported for movement within the interior chamber of the sleeve member and separating an upstream pressure side of the valve assembly from a downstream pressure side of the valve assembly, and a dynamic sealing device mounted to one of the sleeve member and the piston member for sealingly isolating the upstream pressure side of the valve assembly from the downstream pressure side of the valve assembly. The dynamic sealing assembly includes a PTFE seal member having a generally C-shaped cross-section defining an internal cavity having an opening about the outer periphery thereof the seal member, and a helical spring disposed within the internal cavity of the seal member for providing a constant sealing force to the seal member. The dynamic sealing device is positioned in the valve assembly so that the opening of the internal cavity of the seal member faces away from the upstream pressure side of the valve assembly and towards the downstream pressure side of the valve assembly.

Abstract translation: 一种用于燃料喷射器的阀组件，其包括具有内部腔室的套筒构件，活塞构件，其被支撑用于在套筒构件的内部腔室内移动，并将阀组件的上游压力侧与阀组件的下游压力侧分离 以及安装到套筒构件和活塞构件中的一个的动态密封装置，用于将阀组件的上游压力侧与阀组件的下游压力侧密封隔离。 该动态密封组件包括PTFE密封件，该PTFE密封件具有大体上C形的横截面，其限定了具有围绕其密封件的外周的开口的内腔，以及设置在密封件的内腔内的螺旋弹簧， 对密封件恒定的密封力。 动态密封装置定位在阀组件中，使得密封构件的内腔的开口面向离开阀组件的上游压力侧并朝向阀组件的下游压力侧。