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11. 发明专利

GB2278888A A fuel pump with curved vapour channel 未知
公开(公告)号：GB2278888A
公开(公告)日：1994-12-14
申请号：GB9409163
申请日：1994-05-09
申请人： FORD MOTOR CO
发明人： YU DEQUAN
IPC分类号： F02M37/10 , F04D5/00 , F04D7/02 , F04D9/00 , F04D9/02
摘要： A pump for supplying gasoline to the fuel injectors of an automotive engine includes a pump case, and upper and lower pump housings mounted within the case and forming an annular pumping channel. The pumping channel includes a vapor channel extending along an axially enlarged section of the bottom portion of the pumping channel from the pump's inlet to a purge orifice which extends axially through the lower pump housing from a radially inward portion of the pumping channel.

12. 发明专利

DE60005721D1 未知
公开(公告)号：DE60005721D1
公开(公告)日：2003-11-13
申请号：DE60005721
申请日：2000-01-17
申请人： FORD MOTOR CO
发明人： YU DEQUAN
IPC分类号： F04D5/00 , F04D23/00 , F04D29/18
摘要： A fuel pump has a motor (14) with a shaft (18) extending therefrom and an impeller (20) fitted thereon for pumping fuel from a fuel tank to an internal combustion engine. A pumping chamber (36), which encases the impeller (20), is comprised of a cover channel (38) and a bottom channel (40) formed in a pump cover (24) and a pump bottom (22), respectively. The impeller (20) has a plurality of radially extending vanes (50) on an outer circumference separated by partitions (56) of shorter radial length. The partitions are comprised of substantially quarter-circle shaped arcuate portions (60) extending from the outer circumference of the impeller (20) to a diverging portion, preferably to a substantially flat top (66) with rounded corners (67). Fluid active vane grooves thus formed circumferentially between the vanes (50) and axially between the partitions (60) which reduce fuel vortices angular acceleration within the pumping chamber (36) thus increasing pump efficiency.

15. 发明专利

DE69613659T2 未知
公开(公告)号：DE69613659T2
公开(公告)日：2002-05-08
申请号：DE69613659
申请日：1996-11-19
申请人： FORD MOTOR CO
发明人： YU DEQUAN , CASTLE HAROLD L
IPC分类号： F04D5/00 , F04D29/66 , F02M37/04
摘要： The housing has two portions forming a cover (40) and a bottom (38). The cover has an inlet port defining a directional control surface having an inclined frusto-conical portion and an inclined planar portion joined and laterally extending from it to radially accelerate the fuel. The bottom has an annular bottom channel which, when the cover and bottom are assembled defines with the cover channel (54), a flow inlet channel. A transition section is located at the beginning of the inlet channel and extends along a portion of the arc of the inlet channel.

16. 发明专利

GB2342398A Pressure relief return flow management systems in gerotor pumps 未知
公开(公告)号：GB2342398A
公开(公告)日：2000-04-12
申请号：GB9916165
申请日：1999-07-12
申请人： FORD MOTOR CO
发明人： YU DEQUAN , ENGEL RONALD , CRONIN GERARD
IPC分类号： F04C2/10 , F04C14/26 , F04C15/06 , F04C15/04
摘要： A return flow guide system having a relief valve 40 leading to a relief channel 52,74 allows fluid to flow from decreasing volume pumping chambers between teeth 26 of internally and externally toothed intermeshing gears 18,20 to an inlet port 42,72. A flow guide 50,70 having a concave surface 62,82 is formed adjacent the inlet port 42,72 to alter the direction of return fluid flow so that it matches that of the fluid flow within inlet cavities 30, to avoid turbulence and flow and pressure dips at the inlet.

18. 发明专利

DE4437935C2 未知
公开(公告)号：DE4437935C2
公开(公告)日：1998-07-02
申请号：DE4437935
申请日：1994-10-24
申请人： FORD MOTOR CO
发明人： YU DEQUAN , BROCKNER HENRY W
IPC分类号： F02M37/08 , F04D5/00 , F04D29/18
摘要： A fuel pump has a motor with a shaft extending therefrom and an impeller fitted thereon for pumping fuel from a fuel tank to an internal combustion engine. A pumping chamber, which encases the impeller, is comprised of a cover channel and a bottom channel formed in a pump cover and a pump bottom, respectively. The impeller has a plurality of radially extending vanes on an outer circumference separated by partitions of shorter radial length. The partitions are comprised of quarter-circle shaped arcuate portions extending from the outer circumference of the impeller to a straight portion having parallel sides, which preferably extend approximately 0.1 millimeters to 0.5 millimeters, to a flat top with rounded corners. Fluid active vane grooves thus formed circumferentially between the vanes and axially between the partitions which reduce fuel vortices angular acceleration within the pumping chamber thus increasing pump efficiency.

19. 发明专利

DE4428633C2 未知
公开(公告)号：DE4428633C2
公开(公告)日：1998-07-02
申请号：DE4428633
申请日：1994-08-12
申请人： FORD MOTOR CO
发明人： YU DEQUAN
IPC分类号： F02M37/10 , F04D5/00
摘要： A fuel pump has a motor which rotates a shaft with an impeller fitted thereon for pumping fuel within a pumping chamber comprised of a cover channel and a bottom channel formed in a pump cover and a pump bottom, respectively, which encase the impeller. The cover channel begins at a fuel inlet and runs circumferentially to a transition section near the opposite end where it gradually becomes narrower and shallower until becoming flush with the inner cover face. The fuel outlet in the bottom channel is positioned circumferentially 0 DEG -5 DEG beyond the end of and in partial fluid communication with the cover channel so that fuel is expelled smoothly from the cover channel through the fuel outlet.

20. 发明专利

DE4412003A1 未知
公开(公告)号：DE4412003A1
公开(公告)日：1994-10-13
申请号：DE4412003
申请日：1994-04-07
申请人： FORD MOTOR CO
发明人： YU DEQUAN
IPC分类号： F02M37/08 , F02M37/10 , F04B51/00 , F04C11/00 , F04D5/00 , F04D13/12 , F04D15/00 , F04D29/60 , F04D13/08
摘要： A modular automotive fuel pump includes a motor section (18) and a pretested pumping section (22), which are both enclosed in a common casing (16) which functions to permanently retain the motor and pump sections (18, 22). A method for constructing the pump comprises the step of testing the pump section 22 and if satisfactory combining the motor section and pump section in a common housing. Testing of the motor assembly may also take place prior to combining the motor section with pump section.

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