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公开(公告)号：US6053425A
公开(公告)日：2000-04-25
申请号：US968483
申请日：1997-11-12
Applicant: Christopher Stringfellow
Inventor： Christopher Stringfellow
CPC classification number: F02M45/12 , F02M47/027
Abstract: An injector includes a nozzle body having a bore and defining a seating, and a fuel flow path along which fuel flows, in use, towards the seating. A needle is slidable through a range of movement within the bore, and engagable with the seating to control fuel flow to an outlet aperture. The needle includes a thrust surface against which fuel at high pressure acts, in use, to lift the needle from its seating. The bore and needle together define a restriction to the flow of fuel along the fuel flow path towards the seating. The restriction is located upstream of the thrust surface, and the restriction is arranged to restrict the rate of flow of fuel towards the seating throughout the range of movement of the needle. In a preferred embodiment, the restriction is arranged such that the rate of fuel flow towards the seating through the restriction varies as the needle separates from the seating.
Abstract translation: 喷射器包括具有孔并限定座位的喷嘴主体，以及在使用中燃料沿着燃料流向座椅的燃料流动路径。 针可以在孔内的一系列运动中滑动，并且可与座椅接合以控制到出口孔的燃料流。 该针包括推力表面，高压力燃料在该推力表面上作用，用于将针从其座上提起。 孔和针一起限定了沿燃料流动路径朝向座椅的燃料流动。 限制件位于推力表面的上游，并且限制被设置成在针的整个移动范围内限制燃料朝着座椅的流动速率。 在优选实施例中，限制被布置成使得通过限制件朝向座椅的燃料流速随着针与座椅分离而变化。
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公开(公告)号：US4920940A
公开(公告)日：1990-05-01
申请号：US297413
申请日：1989-01-13
Applicant: Kenneth M. Harris , George N. Felton , Peter A. G. Collingborn , Christopher Stringfellow , Godfrey Greeves
Inventor： Kenneth M. Harris , George N. Felton , Peter A. G. Collingborn , Christopher Stringfellow , Godfrey Greeves
IPC: F02M41/14
CPC classification number: F02M41/1411
Abstract: A fuel pumping apparatus of the rotary distributor type includes an accumulator volume into which fuel can be spilled to terminate delivery of fuel by the apparatus. The accumulator is defined by a movable member in the form of a sleeve which is slidable on an extension of the distributor member and has a closed end. The extension defines a seating with which can be engaged by a valve element defined by the sleeve. The extension and sleeve define an annular space connected to the pumping chamber of the apparatus and mechanical means is provided to effect initial movement of the sleeve against the action of a spring to lift the valve element from the seating to allow fuel flow into the accumulator volume.
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公开(公告)号：US06997166B2
公开(公告)日：2006-02-14
申请号：US11009453
申请日：2004-12-10
Applicant: Christopher Stringfellow
Inventor： Christopher Stringfellow
IPC: F02M37/04
CPC classification number: F16K31/0624 , F02M47/027 , F02M63/0045 , F02M63/0073 , F16K31/0627 , F16K31/42
Abstract: A fuel injector for use in an internal combustion engine, comprising a supply passage for high pressure fuel and an injection nozzle for receiving high pressure fuel. The injection nozzle includes a valve needle which is engageable with a valve needle seating to control fuel delivery from the injector. A surface associated with the valve needle is exposed to fuel pressure within a control chamber and a first restricted flow path provides communication between the supply passage and the control chamber. A supplementary flow path also provides communication between the supply passage and the control chamber under the control of a control valve, so as to allow high pressure fuel to flow from the supply passage into the control chamber through two flow paths when it is required to terminate an injection of fuel.
Abstract translation: 一种用于内燃机的燃料喷射器，包括用于高压燃料的供给通道和用于接收高压燃料的喷嘴。 注射喷嘴包括可与阀针座接合的阀针，以控制从喷射器输送的燃料。 与阀针相关联的表面暴露于控制室内的燃料压力，并且第一限制流路提供供给通道和控制室之间的连通。 辅助流动路径还在控制阀的控制下在供给通道和控制室之间提供连通，以便当需要终止时，允许高压燃料从供给通道通过两个流动路径流入控制室 注入燃料。
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Patent Agency Ranking
公开(公告)号：US20050133629A1
公开(公告)日：2005-06-23
申请号：US11009453
申请日：2004-12-10
Applicant: Christopher Stringfellow
Inventor： Christopher Stringfellow
CPC classification number: F16K31/0624 , F02M47/027 , F02M63/0045 , F02M63/0073 , F16K31/0627 , F16K31/42
Abstract: A fuel injector for use in an internal combustion engine, comprising a supply passage for high pressure fuel and an injection nozzle for receiving high pressure fuel. The injection nozzle includes a valve needle which is engageable with a valve needle seating to control fuel delivery from the injector. A surface associated with the valve needle is exposed to fuel pressure within a control chamber and a first restricted flow path provides communication between the supply passage and the control chamber. A supplementary flow path also provides communication between the supply passage and the control chamber under the control of a control valve, so as to allow high pressure fuel to flow from the supply passage into the control chamber through two flow paths when it is required to terminate an injection of fuel.
Abstract translation: 一种用于内燃机的燃料喷射器，包括用于高压燃料的供给通道和用于接收高压燃料的喷嘴。 注射喷嘴包括可与阀针座接合的阀针，以控制从喷射器输送的燃料。 与阀针相关联的表面暴露于控制室内的燃料压力，并且第一限制流路提供供给通道和控制室之间的连通。 辅助流动路径还在控制阀的控制下在供给通道和控制室之间提供连通，以便当需要终止时，允许高压燃料从供给通道流过控制室通过两个流动路径 注入燃料。
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公开(公告)号：US06394762B1
公开(公告)日：2002-05-28
申请号：US09635946
申请日：2000-08-10
IPC: F04B2500
Abstract: A fuel pump comprising a first pumping plunger reciprocable within a first bore and defining, with the first bore, a first pumping chamber. A second pumping plunger is reciprocable within a second bore and defines, with the second bore, a second pumping chamber. The fuel pump further comprises a supply passage, whereby fuel from the first pumping chamber is supplied to the second pumping chamber. A drive arrangement is provided for driving the first and second pumping plungers in both an extending direction and a retracting direction such that when the drive arrangement drives the first pumping plunger in its retracting direction, the second pumping plunger is driven in its extending direction to expel fuel from the second pumping chamber, and when the drive arrangement drives the first pumping plunger in its extending direction, the second pumping plunger is driven in its retracting direction and fuel is expelled from the first pumping chamber through the supply passage to the second pumping chamber.
Abstract translation: 一种燃料泵，包括可在第一孔内往复运动的第一泵送柱塞，并且与所述第一孔限定第一泵送室。 第二抽吸柱塞可在第二孔内往复运动，并且在第二孔中限定第二泵送室。 燃料泵还包括供应通道，由此来自第一泵送室的燃料被供应到第二泵送室。 提供驱动装置用于在延伸方向和回缩方向上驱动第一和第二抽吸柱塞，使得当驱动装置在其回缩方向上驱动第一泵送柱塞时，第二泵柱塞沿其延伸方向被驱动以排出 来自第二泵送室的燃料，并且当驱动装置在其延伸方向上驱动第一泵送柱塞时，第二泵柱塞在其回缩方向上被驱动，并且燃料通过供应通道从第一泵送室排出到第二泵送室 。
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公开(公告)号：US5983869A
公开(公告)日：1999-11-16
申请号：US110742
申请日：1998-07-02
Applicant: Michael Peter Cooke , Paul Francis Garland , Christopher Stringfellow , Christopher Matthew Moore , Paul Raymond Smith
Inventor： Michael Peter Cooke , Paul Francis Garland , Christopher Stringfellow , Christopher Matthew Moore , Paul Raymond Smith
CPC classification number: F02M63/02 , F02M37/0052 , F02M55/002 , F04F5/466 , F02M59/38
Abstract: A fuel system is described which comprises a high pressure fuel pump arranged to supply fuel under pressure to a plurality of injectors. A backleak connection line is arranged to return fuel from the injectors to a fuel reservoir. A venturi pump is connected to the backleak connection line and is arranged to draw fuel from the line to reduce the fuel pressure therein.
Abstract translation: 描述了一种燃料系统，其包括被布置成将压力下的燃料供应到多个喷射器的高压燃料泵。 背衬连接线被布置成将燃料从喷射器返回到燃料储存器。 文丘里泵连接到背衬连接线，并且布置成从管线中抽出燃料以减少其中的燃料压力。
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公开(公告)号：US5443048A
公开(公告)日：1995-08-22
申请号：US277877
申请日：1994-07-20
Applicant: Stuart W. Nicol , Peter A. G. Collingborn , Christopher Stringfellow , Ronald Phillips
CPC classification number: F02M41/1405
Abstract: A rotary distributor type fuel pumping apparatus has two pairs of plungers housed in respective diametrical bores which intersect each other. One of the plungers is longer than the remaining plungers conveniently by providing an extension at its inner end. The extension lies in the paths of movement of the remaining plungers so as to minimize the risk of damage to the plungers.
Abstract translation: 旋转分配器式燃料抽吸装置具有容纳在彼此相交的相应直径孔中的两对柱塞。 其中一个柱塞通过在其内端提供延伸部而方便地比剩余的柱塞更长。 延伸在其余柱塞的运动路径上，以便尽可能减少损坏柱塞的风险。
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公开(公告)号：US5213481A
公开(公告)日：1993-05-25
申请号：US832817
申请日：1992-02-07
Applicant: Christopher Stringfellow , Peter A. G. Collingborn , Derek W. Tomsett
Inventor： Christopher Stringfellow , Peter A. G. Collingborn , Derek W. Tomsett
IPC: F02M41/14
CPC classification number: F02M41/1411
Abstract: A fuel pumping apparatus of the rotary distributor type has a fluid pressure operable valve which can be opened to terminate delivery of fuel to an associated engine. The operation of the valve is controlled by an axially movable shuttle contained in a cylinder. The shuttle is biased toward one end of the cylinder and is displaced away from the one end of the cylinder by fuel supplied by an auxiliary plunger. The shuttle is angularly movable by an actuating mechanism to vary the extent of movement before operation of the valve. The shuttle is biased to the one end of the cylinder by a shuttle return piston in order to reduce the frictional loads on the actuating mechanism. The cylinder containing the return piston is connected to an accumulator chamber.
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