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公开(公告)号：JP2004353468A
公开(公告)日：2004-12-16
申请号：JP2003149079
申请日：2003-05-27
Applicant: Denso Corp , 株式会社デンソー
Inventor： OKAZONO TETSUO , KOBA TAKASHI , EBIHARA YOSHIO , TORII MIKIO
Abstract: PROBLEM TO BE SOLVED: To provide a fuel supply device enabling the easy commonization of a pump module and capable of preventing the radial size of the pump module from increasing.
SOLUTION: The pump module 20 comprises a fuel pump 21, a fuel filter 23, a pressure regulator 60, and a level gauge 64. The pump module 20 is stored in a fuel tank. A tubular connection part 28 is formed to be projected to the side of a filter case 24. A shaft is connected to the connection part 28, and connects a flange closing the opening part of the fuel tank to the filter case 24. The connection part 28 connected to the shaft is installed in a virtual circle 110 passing the outer periphery of the filter case 24 and the outer periphery of the level gauge 64 projected to the side of the filter case 24 and storing the pressure regulator 60 and the level gauge 64.
COPYRIGHT: (C)2005,JPO&NCIPI-
公开(公告)号：JP2004028054A
公开(公告)日：2004-01-29
申请号：JP2002189351
申请日：2002-06-28
Applicant: Denso Corp , 株式会社デンソー
Inventor： OKABE KENJI , EBIHARA YOSHIO , SAKAI TATSUO
CPC classification number: F02M37/106 , Y10T137/86075
Abstract: PROBLEM TO BE SOLVED: To provide a fuel feeder which easily couples a pressure regulator with a jet pump when assembling a pump module to a sub tank, and requires no pipe in coupling the pressure regulator with the jet pump. SOLUTION: A first rib and a second rib 48 are formed on a lid part 36 of a filter case 32. A fuel inlet 72 of the jet pump 70 is formed in an inner side of a bottom part of the sub tank 20. An inner circumferential surface 73 of the fuel inlet 72 is contraction-tapered toward a direction in which a fuel outlet 61 of the pressure regulator 60 is coupled. When a pump module is assembled to the sub tank 20, the fuel outlet 61 of the pressure regulator 60 is guided by the inner circumferential surface 73 of the fuel inlet 72 of the jet pump 70, and coupled with the fuel inlet 72. The first rib aligns the pump module to the sub tank 20. The second rib 48 positions the pump module in the rotational direction with respect to the sub tank 20. COPYRIGHT: (C)2004,JPO
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公开(公告)号：JP2003278684A
公开(公告)日：2003-10-02
申请号：JP2002085157
申请日：2002-03-26
Applicant: Denso Corp , 株式会社デンソー
Inventor： NARUSEKO HIDEKI , EBIHARA YOSHIO
Abstract: PROBLEM TO BE SOLVED: To provide a fluid suction/exhaust device capable of lowering noise due to arrangement at unequal intervals in spite of its uneven-interval arrangement of blades.
SOLUTION: In this fluid suction/exhaust device having blades 24a and an impeller 24 having blade grooves 24b arranged between the blades 24a in its circumference, sucked fluid is discharged by rotation of the impeller 24. An adjacent angle Θ of the blade grooves 24b is set according to a predetermined periodic function and arranged in the circumference direction. Desirably, the periodic function is defined as Θ(no)=360/[N+Kcos{2π/N/(no-1)}] when a predetermined blade groove Θ1 is used as a reference, the blades 24 are numbered with (no), and the adjacent angle matching the blade 24a (no) with the number (no) is represented by Θ(no). In this expression, N represents the total number of blades, and K represents a coefficient varying the degree of influence of a trigonometric function cos.
COPYRIGHT: (C)2004,JPOAbstract translation: 要解决的问题：提供一种能够以不均匀间隔排列的噪音降低的流体吸入/排出装置，尽管其间隔布置不均匀。 解决方案：在具有叶片24a和叶轮24的液体吸入/排出装置中，叶轮24在其周边上设置有叶片24a之间的叶片24b，吸入的流体通过叶轮24的旋转而被排出。叶片的相邻角度θ 凹槽24b根据预定的周期函数设置并且沿圆周方向布置。 期望地，当使用预定的叶片槽Θ1作为参考时，周期函数被定义为Θ（no）= 360 / [N +Kcosä2π/ N /（no-1）}]，叶片24用（否） 并且用Θ（否）表示与刀片24a（否）与数字（no）匹配的相邻角度。 在该表达式中，N表示叶片的总数，K表示改变三角函数cos的影响程度的系数。 版权所有（C）2004，JPO
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公开(公告)号：JP2002285266A
公开(公告)日：2002-10-03
申请号：JP2001093180
申请日：2001-03-28
Applicant: MITSUBISHI MATERIALS CORP , DENSO CORP
Inventor： KANEZAKI NOBORU , MARUYAMA TSUNEO , EBIHARA YOSHIO
IPC: F02M37/08 , B22F3/11 , B22F5/00 , C22C1/05 , C22C1/08 , C22C1/10 , C22C9/04 , C22C9/06 , C22C32/00
Abstract: PROBLEM TO BE SOLVED: To provide a bearing of a motor type fuel pump which exhibits excellent wear resistance under the high pressure and high speed circulation of a liquid fuel. SOLUTION: The bearing of a motor type fuel pump consists of a Cu based sintered alloy having a composition containing, by mass, 10 to 25% Ni, 10 to 25% Zn, 0.1 to 0.9% P and 0.5 to 5% MoS2 , and the balance Cu with inevitable impurities, having a structure in which a hard Cu-P compound and MoS2 having high lubricity are dispersedly distributed into a base consisting of a solid solution phase of a Cu-Ni-Zn based alloy, and having a porosity of 5 to 25% as well.
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公开(公告)号：JP2002285265A
公开(公告)日：2002-10-03
申请号：JP2001093181
申请日：2001-03-28
Applicant: MITSUBISHI MATERIALS CORP , DENSO CORP
Inventor： KANEZAKI NOBORU , MARUYAMA TSUNEO , EBIHARA YOSHIO
Abstract: PROBLEM TO BE SOLVED: To provide a bearing of a motor type fuel pump which exhibits excellent wear resistance under the high pressure and high speed circulation of a liquid fuel. SOLUTION: The bearing of a motor type fuel pump consists of a Cu based sintered alloy having a composition containing, by mass, 10 to 25% Ni, 10 to 25% Zn, 0.1 to 0.9% P, 0.5 to 5% C and 0.5 to 5% MoS2 , and the balance Cu with inevitable impurities, having a structure in which a hard Cu-P compound, free graphite having lubricity and MoS2 are dispersedly distributed into a base of a solid solution phase of a Cu-Ni-Zn based alloy, and having a porosity of 5 to 25% as well.
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Patent Agency Ranking
公开(公告)号：JP2004353467A
公开(公告)日：2004-12-16
申请号：JP2003149078
申请日：2003-05-27
Applicant: Denso Corp , 株式会社デンソー
Inventor： TORII MIKIO , EBIHARA YOSHIO , OKAZONO TETSUO , KOBA TAKASHI
IPC: F02M37/10
Abstract: PROBLEM TO BE SOLVED: To provide a fuel supply device enabling the easy commonization of a pump module and capable of reducing noise.
SOLUTION: A shaft 30 connects a flange 12 to the case body 26 of the pump module 20. One of the shaft 30 is press-fitted to the press-fitted part 13 of a flange 12, and the other is inserted into a projected part 28 projected from the side of a filter case 24. Rubber parts 40 of the same shape are fitted to opening parts in both axial sides of the projected part 28. On the flange 12 side and the anti-flange side of the projected part 28, a washer 50 is fitted to a small diameter part 32 so as to hold a vibration isolation member 40 in the clearance thereof from the projected part 28. A clip 52 is fitted to the small diameter part 32 on the opposite side of the vibration isolating member 40 of the lower side washer 50. The clip 52 prevents the shaft 20 from coming off the projected part 28.
COPYRIGHT: (C)2005,JPO&NCIPI-
公开(公告)号：JP2004257245A
公开(公告)日：2004-09-16
申请号：JP2001328425
申请日：2001-10-25
Applicant: DENSO CORP , KYOSAN DENKI KK
Inventor： EBIHARA YOSHIO , KAWASAKI HIROAKI , NOYA TAMOTSU , KIMURA AKIHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a motor-type fuel pump device for a vehicle with a single hole formed to serve both as a positioning pin press-in hole and a pressure relief hole without needing to form two holes. SOLUTION: The pump is composed of a housing 2 provided with a pump chamber 1 inside, and a cover 3 for covering the housing 2. A pressure relief groove 15 with the end part opened into a prescribed position of the pump chamber is formed at an upper end face 14 of the cover 3, and the end part is communicated with a pressure relief and pin insertion hole 11 for inserting a positioning pin 12. A pressure relief passage is formed around or inside the pressure relief and pin insertion hole 11 in the inserted state of the positioning pin 12. COPYRIGHT: (C)2004,JPO&NCIPI
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公开(公告)号：JP2004028050A
公开(公告)日：2004-01-29
申请号：JP2002189293
申请日：2002-06-28
Applicant: Denso Corp , 株式会社デンソー
Inventor： OKABE KENJI , NARUSEKO HIDEKI , EBIHARA YOSHIO , IZUMITANI KOJI
IPC: B01D35/027 , F02M37/02 , F02M37/10 , F02M37/22
CPC classification number: F02M37/10 , B01D35/027 , B01D35/26 , F02M37/025 , F02M2037/225 , F02M2037/228
Abstract: PROBLEM TO BE SOLVED: To provide a fuel feeder of less noise for easily connecting a pressure regulator to a jet pump.
SOLUTION: The fuel feeder 10 is accommodated in a fuel tank. Two projection parts having a claw 47 on a fuel discharge side 42 of a fuel pump 40 are formed at positions separate from each other in the circumferential direction. The claws 47 are fitted to and engaged with opening parts 38 formed in a filter case 32 to prevent the fuel pump 40 from being fallen from the filter case 32. The whole periphery on the fuel discharge side 42 of the fuel pump 40 is press-fitted to a cylindrical press-fitting part 37 of the filter case 32. A fuel suction side 48 of the fuel pump 40 is not supported by other components, but in a free state. A fuel inlet of a pressure regulator 60 is directly coupled with the fuel outlet of the filter case 32. A fuel outlet 62 of the pressure regulator 60 is directly coupled with a fuel inlet 72 of a jet pump 70 formed on the inner side of a bottom part of a sub tank 20.
COPYRIGHT: (C)2004,JPO-
公开(公告)号：JP2002027710A
公开(公告)日：2002-01-25
申请号：JP2000204146
申请日：2000-07-05
Applicant: DENSO CORP
Inventor： KIYOSE KENZO , EBIHARA YOSHIO
IPC: H02K13/00
Abstract: PROBLEM TO BE SOLVED: To strengthen joint of a commutator piece and a metal piece or improve low-quality fuel resistance, while maintaining simple manufacturing process as much as possible. SOLUTION: In a flat commutator to be loaded to a motor integrating a fuel pump, a commutator piece 1 includes metal powder having low-quality fuel resistance. That is, in this structure, since the commutator piece (segment) which is mainly composed of a carbon includes alloy powder having the low- quality fuel resistance, joint between commutator piece and metal piece can be strengthened while maintaining improvement of conductivity off the commutator piece 1. Moreover, since the metal powder included in the carbon of commutator piece 1 has the low-quality fuel resistance, even when this commutator is used in the motor integrating the fuel pump, increase of resistivity and deterioration of strength of joint due to corrosion of metal powder in the commutator piece 1 are never generated and increase in the manufacturing steps can also be controlled. As a result, a commutator having excellent environment-proof characteristic can be obtained.
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公开(公告)号：JP2001359258A
公开(公告)日：2001-12-26
申请号：JP2001069010
申请日：2001-03-12
Applicant: DENSO CORP
Inventor： EBIHARA YOSHIO , KIYOSE KENZO , OI KIYOTOSHI
Abstract: PROBLEM TO BE SOLVED: To prevent complication of the structure of and the manufacturing process for a disk-shaped commutator and further to enhance capability of preventing damages to the bosses of the commutator of counter commutation planar joint structure. SOLUTION: The disk-shaped commutator of counter commutation planar joint structure has a shape with the direct coupling portions of the bosses 3 at both the circumferential ends of axially extending portions 22 of metal pieces 2 present in conventional disk-shaped commutators of counter commutation planar joint structure being completely bifurcated by the axially extending portions 22 of the metal pieces 2, so that the outside portions 33 of the bosses 3 are coupled only at the coupling portions on the back side (inner radius side) of the axially extending portions 22 of the metal pieces 2. As a result, even if the axially extending portions 22 of the metal pieces 2 are extended in the axial direction by fusing welding and the outside portions 33 of the bosses 3 are pushed upward in the axial direction, the coupling portions 34, extending along the counter commutation plane-side end of the commutator pieces 1 on the back side of the axially extending portions 22 of the metal pieces 2, are deformed elastically and thus the bosses will not break.
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