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1. 发明专利

GB2375145A Fuel pump chamber 未知
公开(公告)号：GB2375145A
公开(公告)日：2002-11-06
申请号：GB0218071
申请日：1999-09-17
申请人： FORD MOTOR CO
发明人： YU DEQUAN , GASTON ROBERT DUANE
IPC分类号： F04D5/00 , F04D29/18
摘要： An electrically operated fuel pump 20 of the regenerative type has a vaned impeller 28, 28' disposed in a chamber 27 for rotation about an axis 21. The pumping chamber 27 is defined at least partly by a main channel 42 extending arcuately about the axis to one axial side of the impeller 28, 28'. The impeller 28, 28' has vanes 52 which are girdled by a ring 70. Spokes are disposed between adjacent vanes 52 and join the ring 70 to a central body of the impeller 28, 28'. The ring 70 has a radially inner surface which is concave in axial cross-section ( see figure 8 ). The impeller arrangement is claimed to enhance fuel swirling such that vane edge wear is reduced.

2. 发明专利

DE69801738T2 未知
公开(公告)号：DE69801738T2
公开(公告)日：2002-05-23
申请号：DE69801738
申请日：1998-11-19
申请人： FORD MOTOR CO
发明人： YU DEQUAN , MARCHAND FRANCES S
IPC分类号： F04D15/00

3. 发明专利

GB2324573B Gerotor pump 未知
公开(公告)号：GB2324573B
公开(公告)日：2001-02-14
申请号：GB9725238
申请日：1997-12-01
申请人： FORD MOTOR CO
发明人： YU DEQUAN , CRONIN GERARD , ENGEL RONALD
IPC分类号： F04C2/08 , F04C15/00 , F04C2/10 , F04C15/02
摘要： A gerotor pump includes a pair of relief ports superimposed on and directly communicating with the pump's inlet and outlet channels, respectively. The relief ports simultaneously communicate with an open mesh pumping chamber so as to provide an intermittent controlled leak from the open mesh pumping chamber. Upon rotation of the gear members of the gerotor pump when the volume in the open mesh pumping chamber is increasing to a maximum volume, fluid in the open mesh pumping chamber vents into the relief port superimposed on and communicating with the outlet channel while continuing to communicate with the relief port superimposed on and communicating with the inlet channel. Upon further rotation of the gear member when the volume in the open mesh pumping is decreasing, fluid in the open mesh pumping chamber is prevented from venting into the relief port superimposed and communicating with the inlet channel while continuing to communicate with the relief port superimposed on and communicating with the outlet channel. Thus, fluid over-pressure in an excessive fluid leakage from the open mesh pumping chamber is limited.

4. 发明专利

DE4418639C2 未知
公开(公告)号：DE4418639C2
公开(公告)日：2000-09-21
申请号：DE4418639
申请日：1994-05-27
申请人： FORD MOTOR CO
发明人： YU DEQUAN
IPC分类号： F02M37/10 , F02M37/08 , F02M37/18 , F04C11/00 , F04D5/00 , F04D7/02 , F04D13/08 , F04C13/00

5. 发明专利

GB2343222A Fuel pump chamber with contamination control 未知
公开(公告)号：GB2343222A
公开(公告)日：2000-05-03
申请号：GB9921887
申请日：1999-09-17
申请人： FORD MOTOR CO
发明人： YU DEQUAN , GASTON ROBERT DUANE
IPC分类号： F04D5/00 , F04D7/04 , F04D29/18 , F04D29/70
摘要： An electric-operated fuel pump 20 of the regenerative type has a vaned impeller 28, 28' disposed within a pumping chamber 27 for rotation about an axis 21. The pumping chamber has a main channel 42 extending arcuately about the axis to one axial side of the impeller. The main channel has a radially outer margin that opens along at least a portion of the channel's arcuate extent to an adjoining contaminant collection channel 56 which extends arcuately about the axis 21 and which is effective, as the pumping element rotates, to collect certain fluid-entrained particulates expelled from the main channel 42 and to convey the particulates toward the pump outlet 40. A sump 72 is disposed at the end of the contaminant collection channel 56 proximate the outlet. The impeller 28' may have a ring 70 girdling the impeller vanes 52 with a radially inner surface that is slightly concave in axial cross-section, fig. 8.

6. 发明专利

DE69408246T2 未知
公开(公告)号：DE69408246T2
公开(公告)日：1998-05-14
申请号：DE69408246
申请日：1994-09-29
申请人： FORD MOTOR CO
发明人： YU DEQUAN , BROCKNER HENRY W
IPC分类号： F02M37/08 , F04B53/00 , F04D5/00 , F04D29/18
摘要： The fuel pump has a pump housing encasing a rotary pumping element which forms two non-communicating chambers comprising an inlet chamber in communication with a fuel inlet and an outlet pumping chamber in communication with a fuel outlet. The rotary pumping element has a ring portion along an outer circumference, a number of vanes around an inner circumference radially inward of the ring portion, and a number of axially extending fuel flow passages located radially between the number of vanes and the ring portion. Fuel passes from the fuel inlet to the outlet pumping chamber and from the inlet pumping chamber to the fuel outlet through the fuel flow passages in the rotary pumping element.

7. 发明专利

DE19744237A1 未知
公开(公告)号：DE19744237A1
公开(公告)日：1998-04-23
申请号：DE19744237
申请日：1997-10-07
申请人： FORD MOTOR CO
发明人： YU DEQUAN
IPC分类号： F02M37/08 , F04D29/18 , F04D29/22 , F04D5/00 , F04D9/02 , F04D29/24 , F02M37/10
摘要： An impeller has a plurality of vanes 54 radially extending from core 52, each having a sidewall 60 between a leading 56 and a trailing surface 58. A plurality of partitions 62 is interposed between the vanes, thereby defining a plurality of vane grooves 64. Fluid is pumped by the vanes through the grooves and flows along a generally spiral path F1 defining a primary vortex. A relief (e.g. a chamfer or radius) is formed at the intersection between the trailing surface 58 and the sidewall 60. This relief causes the fuel flowing along the path of the primary vortex to also rotate F2 about an instantaneous axis F1 thereby defining a secondary vortex, reducing turbulence, cavitation or vapour generation within the pump. The vanes may be angled or curved in the direction of rotation to increase the strength of the secondary vortex.

8. 发明专利

DE69407248T2 未知
公开(公告)号：DE69407248T2
公开(公告)日：1998-04-02
申请号：DE69407248
申请日：1994-09-29
申请人： FORD MOTOR CO
发明人： YU DEQUAN
IPC分类号： F02M37/08 , F04B53/00 , F04D5/00
摘要： A motor mounted within the pump housing has a shaft extending from it and able to rotate upon application of an electrical current to the motor and a rotary pumping element, pref. an impeller or a regenerative turbine, attached to the shaft for rotatably pumping fuel. A pump bottom, which is mounted to the housing, has an outlet through it in fluid communication with a motor chamber surrounding the motor. An opening allows the shaft to pass through to connect to the impeller. A semi-elliptically shaped channel is formed along an outer circumference of the impeller mating surface of the pump bottom. A pump cover, also having a semi-elliptically shaped channel formed along an outer circumference of the impeller mating surface, is mounted on an end of the housing and is attached to the pump bottom with the impeller positioned between the two. A pumping chamber is thus formed between the pump cover and the pump bottom. When the impeller rotates, elliptically shaped primary vortices are created in the pumping chamber such that secondary vortices are minimised or eliminated, thus resulting in higher pump efficiency. The pump cover also has a fuel inlet through it in fluid communication with the fuel tank and with the pumping chamber.

9. 发明专利

ES2110699T3 未知
公开(公告)号：ES2110699T3
公开(公告)日：1998-02-16
申请号：ES94307156
申请日：1994-09-29
申请人： FORD MOTOR CO
发明人： YU DEQUAN
IPC分类号： F02M37/08 , F04B53/00 , F04D5/00
摘要： A motor mounted within the pump housing has a shaft extending from it and able to rotate upon application of an electrical current to the motor and a rotary pumping element, pref. an impeller or a regenerative turbine, attached to the shaft for rotatably pumping fuel. A pump bottom, which is mounted to the housing, has an outlet through it in fluid communication with a motor chamber surrounding the motor. An opening allows the shaft to pass through to connect to the impeller. A semi-elliptically shaped channel is formed along an outer circumference of the impeller mating surface of the pump bottom. A pump cover, also having a semi-elliptically shaped channel formed along an outer circumference of the impeller mating surface, is mounted on an end of the housing and is attached to the pump bottom with the impeller positioned between the two. A pumping chamber is thus formed between the pump cover and the pump bottom. When the impeller rotates, elliptically shaped primary vortices are created in the pumping chamber such that secondary vortices are minimised or eliminated, thus resulting in higher pump efficiency. The pump cover also has a fuel inlet through it in fluid communication with the fuel tank and with the pumping chamber.

10. 发明专利

GB2278889B Multi-stage automotive fuel pump 未知
公开(公告)号：GB2278889B
公开(公告)日：1996-02-07
申请号：GB9411265
申请日：1994-06-06
申请人： FORD MOTOR CO
发明人： YU DEQUAN
IPC分类号： F02M37/10 , F02M37/08 , F02M37/18 , F04C11/00 , F04D5/00 , F04D7/02 , F04B23/08

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