公开(公告)号：US07302938B2

公开(公告)日：2007-12-04

申请号：US10687385

申请日：2003-10-16

Applicant: DeQuan Yu ,  Stephen T. Kempfer

Inventor： DeQuan Yu ,  Stephen T. Kempfer

IPC: F02M37/04

CPC classification number: F02D41/3836 ,  F02D41/3845 ,  F02D2200/0604 ,  F02D2250/31 ,  F02M63/0225

Abstract: A mechanical returnless fuel system comprises a fuel pump having an output for supplying fuel to fuel injectors of an automotive engine. The fuel system includes a pressure regulating valve that returns a portion of the pump output in excess of engine fuel usage to the fuel supply. The pressure regulating valve results in a fuel pressure that varies as a function of engine fuel demand. During operation, a controller determines a projected engine fuel demand, then determines an estimated fuel pressure based upon the projected engine fuel demand. The controller utilizes the estimated fuel pressure to provide a more accurate calculation of the opening time for the fuel injectors and thereby improve engine control.

Abstract translation: 一种机械无返回燃料系统，包括具有用于向汽车发动机的燃料喷射器供应燃料的输出的燃料泵。 燃料系统包括压力调节阀，该压力调节阀使泵输出超过发动机燃料使用的一部分返回到燃料供应。 压力调节阀导致作为发动机燃料需求的函数而变化的燃料压力。 在操作期间，控制器确定预计的发动机燃料需求，然后基于预计的发动机燃料需求来确定估计的燃料压力。 控制器利用估计的燃料压力来更准确地计算燃料喷射器的打开时间，从而改善发动机控制。

公开(公告)号：US07217084B2

公开(公告)日：2007-05-15

申请号：US11305901

申请日：2005-12-19

Applicant: DeQuan Yu ,  Paul E. Fisher

Inventor： DeQuan Yu ,  Paul E. Fisher

IPC: F01D1/12

CPC classification number: F04D5/002

Abstract: A rotary fuel pump employs pressure balancing features on the non-vaned side of the impeller to provide localized application of fluid forces so that the impeller is more precisely balanced within the pumping chamber. A generally disc-shaped impeller body has an impeller with a body-side surface and a cover-side surface. The cover-side surface defines an impeller flow channel extending circumferentially around the impeller. The impeller includes a plurality of vanes positioned at least partially within the impeller flow channel. The body-side surface has a plurality of discontinuous undercut regions each coaxially aligned with at least a portion of the impeller flow channel. The impeller has a plurality of apertures wherein each aperture connects the impeller flow channel with a respective undercut region, whereby pressure forces against the impeller from the fuel are substantially balanced in the axial direction.

Abstract translation: 旋转燃料泵在叶轮的非叶片侧采用压力平衡特征，以提供流体力的局部应用，使得叶轮在泵送室内更精确地平衡。 大致圆盘状的叶轮本体具有带有主体侧表面和盖侧表面的叶轮。 盖侧表面限定了绕叶轮周向延伸的叶轮流动通道。 叶轮包括至少部分地位于叶轮流动通道内的多个叶片。 身体侧表面具有多个不连续的底切区域，其各自与叶轮流动通道的至少一部分同轴对准。 叶轮具有多个孔，其中每个孔将叶轮流动通道与相应的底切区域连接，由此来自燃料的来自叶轮的压力在轴向方向上基本平衡。

公开(公告)号：US07165932B2

公开(公告)日：2007-01-23

申请号：US11041485

申请日：2005-01-24

Applicant: DeQuan Yu ,  Stephen Thomas Kempfer ,  Paul Edward Fisher ,  Harold Lawrence Castle

Inventor： DeQuan Yu ,  Stephen Thomas Kempfer ,  Paul Edward Fisher ,  Harold Lawrence Castle

IPC: F01D1/12

CPC classification number: F04D5/002 ,  F02M37/048 ,  F02M37/106 ,  F02M2037/228 ,  F04D5/007 ,  F05B2250/503

Abstract: A fuel pump includes a housing, and a motor. A single sided impeller has first and second impeller flow channels each including a plurality of vanes. The impeller defines a flow passageway extending therethrough. A cover is attached to the housing and has a cover surface that defines first and second cover flow channels. The cover flow channels receive fuel from inlets formed in the cover. The first and second cover flow channels are aligned with the first and second impeller flow channels and receive fuel through the inlets and deliver fuel to outlets. A body is positioned within the housing and defines an impeller chamber to receive the impeller, and a first outlet passageway fluidically connected to the first cover flow channel and impeller flow channel. A second outlet passageway formed within the cover is fluidically connected to the second cover flow channel and impeller flow channel.

Abstract translation: 燃料泵包括壳体和电动机。 单面叶轮具有每个包括多个叶片的第一和第二叶轮流动通道。 叶轮限定了通过其延伸的流动通道。 盖子附接到壳体并且具有限定第一和第二覆盖流动通道的盖表面。 盖子流动通道从形成在盖子上的入口接收燃料。 第一和第二盖流动通道与第一和第二叶轮流动通道对准，并通过入口接收燃料并将燃料输送到出口。 主体定位在壳体内并且限定叶轮室以容纳叶轮，以及第一出口通道，其流体连接到第一盖流动通道和叶轮流动通道。 形成在盖内的第二出口通道流体连接到第二盖流动通道和叶轮流动通道。

公开(公告)号：US20060180535A1

公开(公告)日：2006-08-17

申请号：US11056202

申请日：2005-02-11

Applicant: DeQuan Yu ,  Paul Fisher

Inventor： DeQuan Yu ,  Paul Fisher

IPC: B01D29/00

CPC classification number: B01D35/0273 ,  F02M37/50

Abstract: An in-tank fuel supply unit self cleans the mesh filter of the primary fuel pump, thereby permitting smaller mesh sizes to decrease pump wear and increase the life of the pump. Generally, the in-tank fuel supply unit includes a reservoir, an auxiliary fuel pump, a primary fuel pump and a filter. Fuel exiting the auxiliary fuel pump outlet is directed towards the filter to wash debris from the filter. Preferably a swirling flow is generated within the reservoir, or the system in run in an overflow condition to assist in the self cleaning of the fuel filter.

Abstract translation: 内燃机燃料供应单元自洁清洁主燃料泵的网状过滤器，从而允许更小的筛网尺寸以减少泵磨损并增加泵的寿命。 通常，舱内燃料供应单元包括储存器，辅助燃料泵，主燃料泵和过滤器。 离开辅助燃料泵出口的燃料被引向过滤器以从过滤器洗涤碎屑。 优选地，在储存器内或在溢流状态下运行的系统中产生旋流，以有助于燃料过滤器的自清洁。

公开(公告)号：US20060165515A1

公开(公告)日：2006-07-27

申请号：US11041487

申请日：2005-01-24

Applicant: DeQuan Yu

Inventor： DeQuan Yu

IPC: F04D5/00

CPC classification number: F04D5/005

Abstract: A fuel pump includes a housing, and a motor. An impeller has first and second impeller flow channels having a plurality of vanes positioned therein. The impeller defines a flow passageway extending through the impeller. A cover is attached to the housing and defines a cover flow channel. The cover flow channel receives fuel from an inlet formed in the cover. A first portion of the cover flow channel is aligned with the first impeller flow channel and a second portion of the cover flow channel is aligned with the second impeller flow channel. The cover flow channel extends around the cover more than 360 degrees. A body is positioned within the housing and defines an impeller chamber, sized to receive the impeller, and an outlet passageway is positioned to fluidically connect to the flow passageway of the impeller to receive higher pressure fuel for delivery to the engine.

公开(公告)号：US20060165514A1

公开(公告)日：2006-07-27

申请号：US11041485

申请日：2005-01-24

Applicant: DeQuan Yu ,  Stephen Kempfer ,  Paul Fisher ,  Harold Castle

Inventor： DeQuan Yu ,  Stephen Kempfer ,  Paul Fisher ,  Harold Castle

IPC: F04D5/00

CPC classification number: F04D5/002 ,  F02M37/048 ,  F02M37/106 ,  F02M2037/228 ,  F04D5/007 ,  F05B2250/503

Abstract: A fuel pump includes a housing, and a motor. A single sided impeller has first and second impeller flow channels each including a plurality of vanes. The impeller defines a flow passageway extending therethrough. A cover is attached to the housing and has a cover surface that defines first and second cover flow channels. The cover flow channels receive fuel from inlets formed in the cover. The first and second cover flow channels are aligned with the first and second impeller flow channels and receive fuel through the inlets and deliver fuel to outlets. A body is positioned within the housing and defines an impeller chamber to receive the impeller, and a first outlet passageway fluidically connected to the first cover flow channel and impeller flow channel. A second outlet passageway formed within the cover is fluidically connected to the second cover flow channel and impeller flow channel.

Abstract translation: 燃料泵包括壳体和电动机。 单面叶轮具有每个包括多个叶片的第一和第二叶轮流动通道。 叶轮限定了通过其延伸的流动通道。 盖子附接到壳体并且具有限定第一和第二覆盖流动通道的盖表面。 盖子流动通道从形成在盖子上的入口接收燃料。 第一和第二盖流动通道与第一和第二叶轮流动通道对准，并通过入口接收燃料并将燃料输送到出口。 主体定位在壳体内并且限定叶轮室以容纳叶轮，以及第一出口通道，其流体连接到第一盖流动通道和叶轮流动通道。 形成在盖内的第二出口通道流体连接到第二盖流动通道和叶轮流动通道。

公开(公告)号：US07008174B2

公开(公告)日：2006-03-07

申请号：US10842685

申请日：2004-05-10

Applicant: DeQuan Yu ,  Paul Edward Fisher ,  Harold Lawrence Castle ,  Joseph Grabowski

Inventor： DeQuan Yu ,  Paul Edward Fisher ,  Harold Lawrence Castle ,  Joseph Grabowski

IPC: F04D5/00

CPC classification number: F04D5/002

Abstract: A fuel pump is provided having improved efficiency by lowering the wet circle index of the pump while maintaining robust axial clearances to meet the demands of an automotive application. One embodiment includes a fuel pump for pressurizing fuel for delivery to an engine of a motor vehicle. The fuel pump generally comprises a housing, a motor, a single sided impeller, a cover and a body. The provision of a single sided impeller greatly reduces the wet circle index and improves the pump efficiency. The cover, impeller, and body are structured to axially balance the impeller which is free floating on the shaft of the motor.

Abstract translation: 通过降低泵的湿循环指数，同时保持坚固的轴向间隙以满足汽车应用的要求，提供了一种提高效率的燃料泵。 一个实施例包括用于对用于输送到机动车辆的发动机的燃料加压的燃料泵。 燃料泵通常包括壳体，马达，单侧叶轮，盖和主体。 提供单面叶轮大大降低了湿圈指数，提高了泵效率。 盖子，叶轮和主体被构造成轴向平衡在马达轴上自由浮动的叶轮。

公开(公告)号：US20050249617A1

公开(公告)日：2005-11-10

申请号：US10842676

申请日：2004-05-10

Applicant: DeQuan Yu

Inventor： DeQuan Yu

IPC: F01D1/12 ,  F04D1/04 ,  F04D5/00

CPC classification number: F04D5/002

Abstract: A fuel pump is provided having improved efficiency by lowering the wet circle index of the pump while maintaining robust axial clearances to meet the demands of an automotive application. One embodiment includes a fuel pump for pressurizing fuel for delivery to an engine of a motor vehicle. The fuel pump generally comprises a housing, a motor, a single sided impeller, a cover and a body. The provision of a single sided impeller greatly reduces the wet circle index and improves the pump efficiency. The cover, impeller, and body are structured to axially balance the impeller which is free floating on the shaft of the motor.

公开(公告)号：US20050081830A1

公开(公告)日：2005-04-21

申请号：US10687137

申请日：2003-10-16

Applicant: DeQuan Yu ,  Stephen Kempfer ,  Marc Possley

Inventor： DeQuan Yu ,  Stephen Kempfer ,  Marc Possley

IPC: F02M37/00 ,  F02M37/10 ,  F02M59/46 ,  F02M63/00 ,  F16K15/06 ,  F02M1/00

CPC classification number: F02M37/0029 ,  F02M37/0058 ,  F02M37/10 ,  F02M59/462 ,  F02M63/0005 ,  F16K15/063 ,  Y10T137/7491

Abstract: A pressure regulated valve is provided for a mechanical returnless fuel system for an automotive vehicle that includes a fuel pump for supplying fuel from a fuel supply to an engine. The pressure regulating valve includes a conduit in fluid communication with the pump outlet. The valve includes a valve seat and a valve body having a frustoconical seal surface. A spring biases the valve body to close the valve body against the valve seat. During operation, increased fuel pressure from the pump opens the valve body to discharge excess fuel to the fuel supply.

公开(公告)号：US20050081826A1

公开(公告)日：2005-04-21

申请号：US10687385

申请日：2003-10-16

Applicant: DeQuan Yu ,  Stephen Kempfer

Inventor： DeQuan Yu ,  Stephen Kempfer

IPC: F02D41/38 ,  F02M1/00 ,  F02M63/02

CPC classification number: F02D41/3836 ,  F02D41/3845 ,  F02D2200/0604 ,  F02D2250/31 ,  F02M63/0225

Abstract: A mechanical returnless fuel system comprises a fuel pump having an output for supplying fuel to fuel injectors of an automotive engine. The fuel system includes a pressure regulating valve that returns a portion of the pump output in excess of engine fuel usage to the fuel supply. The pressure regulating valve results in a fuel pressure that varies as a function of engine fuel demand. During operation, a controller determines a projected engine fuel demand, then determines an estimated fuel pressure based upon the projected engine fuel demand. The controller utilizes the estimated fuel pressure to provide a more accurate calculation of the opening time for the fuel injectors and thereby improve engine control.

Abstract translation: 一种机械无返回燃料系统，包括具有用于向汽车发动机的燃料喷射器供应燃料的输出的燃料泵。 燃料系统包括压力调节阀，该压力调节阀使泵输出超过发动机燃料使用的一部分返回到燃料供应。 压力调节阀导致作为发动机燃料需求的函数而变化的燃料压力。 在操作期间，控制器确定预计的发动机燃料需求，然后基于预计的发动机燃料需求来确定估计的燃料压力。 控制器利用估计的燃料压力来更准确地计算燃料喷射器的打开时间，从而改善发动机控制。