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1. 发明专利

JPH0559164B2 失效
公开(公告)号：JPH0559164B2
公开(公告)日：1993-08-30
申请号：JP20790083
申请日：1983-11-04
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SUGIMOTO AOI , FUJII MEGUMI
IPC分类号： B22F3/24 , C22C38/00 , C23C8/18

2. 发明专利

JPS6428304A HEAT TREATMENT OF SINTERED PARTS 失效
公开(公告)号：JPS6428304A
公开(公告)日：1989-01-30
申请号：JP18486187
申请日：1987-07-23
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： UEDA KOJI , SUGIMOTO AOI
IPC分类号： B22F3/24 , C21D1/18 , C21D1/673
摘要： PURPOSE:To subject hollow cylindrical sintered parts having thin parts to a heat treatment without deforming said parts by inserting an auxiliary material having grooves via a slight spacing into the hollow hole of the sintered parts at the time of subjecting said parts to the heat treatment. CONSTITUTION:The auxiliary material 2 having a through-hole 3 and the many grooves 4 longitudinally on the outside circumference is inserted into the hollow hole of the hollow cylindrical sintered part 1 having a thick part and thin part at the time of subjecting said part to the heat treatment including heating and cooling. The material 2 is so inserted into the part 1 that the thick wall part of said material corresponds to the thin part of the sintered part in this case; in addition, the spacing between the outside peripheral face thereof and the inside surface of the part 1 is kept at about

3. 发明专利

JPS63117184A ROTARY PUMP 失效
公开(公告)号：JPS63117184A
公开(公告)日：1988-05-21
申请号：JP26292886
申请日：1986-11-04
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： TERADA MUTSUO , SUGIMOTO AOI
IPC分类号： F04C2/10
摘要： PURPOSE:To prevent the generation of cavitation in an internal gear pump by forming a recessed part ranging from the tooth surface side of an outer rotor to the outer peripheral surface side on the side surface of the rotor and allowing a pumping chamber to communicate to a suction port through the recessed part. CONSTITUTION:A recessed part 8 which ranges from a tooth surface side to the outer peripheral side is formed on the edge surface 1a on the cover side of an outer rotor 1. The recessed part 8 allows a pumping chamber formed between the inner and outer rotors 1 and 2 to communicate to a suction port 15 side through a communication passage 5a, at the position where a suction port 5 is close to the outer periphery of the outer rotor 1 through a passage 9 formed between the outer rotor 1 and a cover 4. Therefore, the sharp transfer of fluid which is caused by the shortage of the sectional area of the suction port 5 is prevented, and generation of cavitation is prevented even in the high speed revolution.

4. 发明专利

JPS6357878A LOW NOISE PUMP 失效
公开(公告)号：JPS6357878A
公开(公告)日：1988-03-12
申请号：JP20443886
申请日：1986-08-29
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SAEGUSA YASUYOSHI , SUGIMOTO AOI
IPC分类号： F04C15/06 , F04B53/00 , F04C2/08 , F04C2/10 , F04C15/00
摘要： PURPOSE:To efficiently damp pulsation, occurring during discharge of fluid, an the generation of vibration noise without increasing weight and a cost, by a method wherein a space serving as an air reservoir is formed in the line on the delivery side or the port on the delivery side of a pump. CONSTITUTION:Outer and inner rotors 11 and 12 are contained in a space formed with a pump housing 1 and a pump cover 2, and a drive shaft is inserted in a bore 13 of the inner rotor 12. Along with clockwise rotation of a drive shaft, fluid is sucked through a suction port 5 by means of a suction hole 6, and is discharged through a delivery port 8 by means of a delivery port 7. In this case, a space 9 serving as an air reservoir is formed, and is communicated to the delivery port 8 through an opening part 10. Pulsation occurring during delivery of fluid is damped in the space 9, and the generation of vibration noise in a line running subsequently to the delivery port 8 is efficiently reduced.

5. 发明专利

JPS5850282B2 JPS5850282B2 - 失效
公开(公告)号：JPS5850282B2
公开(公告)日：1983-11-09
申请号：JP2621978
申请日：1978-03-08
申请人： Sumitomo Electric Industries
发明人： SUGIMOTO AOI
IPC分类号： F16C3/00 , B22F3/24 , B22F5/00

6. 发明专利

JPH01184207A MANUFACTURE OF SINTERED PART HAVING FLANGE 失效
公开(公告)号：JPH01184207A
公开(公告)日：1989-07-21
申请号：JP728288
申请日：1988-01-14
申请人： SUMITOMO ELECTRIC INDUSTRIES , OKAYAMA SUMIDEN SEIMITSU KK
发明人： UEDA KOJI , SUGIMOTO AOI , SENKI KUNIYOSHI
IPC分类号： B22F3/24
摘要： PURPOSE:To reduce taper of outer peripheral part of a flange in a sintered part and to improve dimensional accuracy by arranging steps at end face of pressurizing side in an upper punch and end face of shoulder part in a die corresponding to the above end face at the time of pressurized-compacting a sintering part having the flange at one end thereof. CONSTITUTION:Cavity forming with the upper punch 1, die 2, lower punch 3 and core 4 is corresponded to the part A to form the sintering part A having the flange by pressurizing the upper punch 1. Then, at the end face 1a of pressurizing side in the upper punch 1 and/or the end face 2a of the shoulder part in the die 2 corresponding to this end face 1a, the steps 1b, 2b are arranged so as to use the gap part 5 developed between end face of the flange F in the sintering part A and the steps, to escaping position of bulging stress acting to the flange F. Further, the height H of the steps 1b, 2b is made to only a little, such as

7. 发明专利

JPS63286504A PRODUCTION OF SINTERED PART 失效
公开(公告)号：JPS63286504A
公开(公告)日：1988-11-24
申请号：JP12086187
申请日：1987-05-18
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： UEDA KOJI , TERADA MUTSUO , SUGIMOTO AOI
IPC分类号： B22F3/24
摘要： PURPOSE:To improve accuracy of working reference plane and to produce a sintered member having high accuracy by forming small projection at upper face or lower face of a green compact at the time of compacting metal powder and machining it after sintering. CONSTITUTION:At the time of compacting the metal powder, by arranging three or more of small recessed parts 3 at part of the upper or lower punch 2, (5), the metal powder is compacted to make the green compact 7 having small injection 3 at the upper face or the lower face. After sintering the green compact 7, it is pushed in a die 8 together with a center rod 6 with upper and lower punch 2, 5 by press, and size thereof is corrected to make the sizing sintered compact 4. The grinding, cutting, etc., is executed to the sizing sintered compact 4 while using the plane having the projection 3 as the reference plane, to finish to the finish sintered member 1. The shape of the projection 3 is to be ring-state, etc., and height thereof is to be about 0.05-0.5 mm.

8. 发明专利

JPS63212811A METHOD AND APPARATUS FOR MEASURING CLEARANCE USING COMBINATION OF GEARS 失效
公开(公告)号：JPS63212811A
公开(公告)日：1988-09-05
申请号：JP4629487
申请日：1987-02-27
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： UEDA KOJI , SUGIMOTO AOI
IPC分类号： G01B5/14 , G01B21/16 , G01M13/02
摘要： PURPOSE:To simplify the measurement of clearance and to improve the precision thereof by a method wherein a clearance gage is not employed and a clearance of a part for measurement is measured from an amount of transfer of an outer gear which is moved by pressing in the back-and-forth direction in relation to a fixed inner gear. CONSTITUTION:An inner gear 1 and an outer gear 2 engaging with each other are so set that a tooth space of the former and a tooth of the latter fit in with each other exactly on the center line. A dial gage 16 is made to contact with the right end of the outer gear 2 in this state, so as to read the position this gear. With the pressing force of a spring 10 of a pressing element 9 reduced, subsequently, a knob 12 is rotated to press a pressing element 11 and thereby to transfer the outer gear 2 onto the left side. The dial gage 16 is made to contact with the right end of the outer gear 2 at the position whereat the transfer of the outer gear stops, so as to read the position thereof. By calculating the difference between the relative positions of the outer gear, a clearance in a part to be measured of an internal gear can be measured simply with high precision.

9. 发明专利

JPS6368783A PLASTIC ROTOR FOR ROTARY PUMP 失效
公开(公告)号：JPS6368783A
公开(公告)日：1988-03-28
申请号：JP21454886
申请日：1986-09-11
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SAEGUSA YASUNORI , SUGIMOTO AOI
IPC分类号： F04C2/10 , F04C2/08
摘要： PURPOSE:To aim at improvement in sealability and pump performance (volumetric efficiency), by making form of a plastic rotor into a ribbed form, while forming it into a specific tooth profile in order to make a tip clearance smaller without entailing any rotational cushioning. CONSTITUTION:Among trochoidal items, when a base circle diameter is set down to Amm, an eccentric quantity to emm, eccentricity to fe=e/B, and a base circle ratio to n=A/B, respectively, these trochoidal items are selected so as to make fe satisfy 0 DELTAc), and thereby an outer rotor curve is corrected. With this constitution, a combination clearance between both outer and inner rotors is kept in almost constant.

10. 发明专利

JPS62263899A DIE SET FOR POWDER MOLDING PRESS 失效
公开(公告)号：JPS62263899A
公开(公告)日：1987-11-16
申请号：JP11027086
申请日：1986-05-12
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SUGIMOTO AOI , TANAKA JIRO
IPC分类号： B30B11/00 , B22F3/02 , B22F3/03 , B22F3/035 , B30B11/02
摘要： PURPOSE:To simplify construction and to prevent failure by receiving lower punches during compression by a base plate and driving cylinder actuators connected to the respective lower punches to remove the molding from dies after the compression and to reset the lower punches to the home positions. CONSTITUTION:A powder material D is supplied into a cavity 3 and an upper punch 11 descends and is inserted into the cavity. A die 1 descends as well together with the plate 2 and yoke plate 9 to start the compression. The lower punch 6 descends as well together with a holder 10 at the same instant. The holder 10 is received by the base plate 7 to complete the compression when the die 1 and the upper punch 11 descend down to the prescribed position. The die 1, driven by a lower ram B, continues to descend even after the completion of the compression so that the top surface of the die 1 is brought lower than the top surface of the upper punch 6. The molding is thus removed from the die. The cylinder actuators 20 are thereafter driven and the upper punch 5 is lifted up to the position where an adjusting ring 27 contacts the surface 28. The molding is thereby removed from the upper punch 6.

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