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1. 发明专利

JPH07109182A BRAZED JOINT MATERIAL 失效
公开(公告)号：JPH07109182A
公开(公告)日：1995-04-25
申请号：JP28048393
申请日：1993-10-13
申请人： NGK SPARK PLUG CO
发明人： SUZUKI OSAMU , TANIGUCHI MASAHITO
IPC分类号： B23K1/19 , C04B37/02
摘要： PURPOSE:To obtain a high-quality brazed joint material reduced in blow holes, etc., in a brazing filler material by improving a processed pattern on the circular joint area on the metal member side. CONSTITUTION:The joint area 3a of a metal member 3 which is one member to be joined has a circular shape. The metal member 3 is joined to a ceramic member with a brazing filler material so that lines constituting its processed pattern of the joint area 3a may be formed almost in the radial directions and may reach the outer edge of the joint area 3a. An excellent fluidity of the excessive brazing filler material is exhibited during the brazing process.

2. 发明专利

JPH0374522A ASSEMBLING METHOD OF BALL BEARING TYPE TURBO CHARGER 失效
公开(公告)号：JPH0374522A
公开(公告)日：1991-03-29
申请号：JP10058190
申请日：1990-04-17
申请人： NGK SPARK PLUG CO
发明人： SUZUKI OSAMU
IPC分类号： F02B39/00
摘要： PURPOSE:To facilitate the assembling by heading the axial tension, which is related to the axial tension to be applied at the time of assembling to a center housing mechanism, toward the opposite direction of a turbine shaft, and applying this axial tension to a positioning pipe between bearings for supporting a rotary shaft, and correcting the unbalance after releasing the axial tension. CONSTITUTION:At the time of assembling of a turbo charger T, an inner ring 51 and a positioning pipe 7 of a bearing 5 are pressed-in from a compressor side part 42 to a rotary shaft 4, on which a turbin impeller is fixed, with the predetermined pressing load for fitting. Next, a fastening pipe 8 is fitted in, and the fastening pipe 8 is fastened by a lock nut 43 with 20%-120% of the axial tension to be applied by twisting the lock nut 43 at the time of assembling to a center housing mechanism 3, for example with 80% of the axial tension. Next, the lock nut 43 is release to remove the fastening pipe 8, and after the unbalance is corrected, a described assembly material is fitted from a turbine 1 side into the center housing mechanism 3, and thereafter, a compressor impeller 22 is fitted.

3. 发明专利

JPH08119761A SOLDERING MATERIAL FOR BONDING AND BONDED PART BONDED WITH THE SOLDERING MATERIAL FOR BONDING 失效
公开(公告)号：JPH08119761A
公开(公告)日：1996-05-14
申请号：JP28729094
申请日：1994-10-26
申请人： NGK SPARK PLUG CO
发明人： TANIGUCHI MASAHITO , SUZUKI OSAMU
IPC分类号： B23K1/00 , B23K1/19 , B23K35/30 , C04B37/02 , C22C5/08 , F01L1/14
摘要： PURPOSE: To obtain a soldering material for the bonding of a metallic member to a metallic or non-metallic member without causing the peeling, etc., between the metallic member and the soldering material even if thermal stress is generated in the bonded part by the thermal expansion difference by incorporating the soldering material with plural specific metals. CONSTITUTION: This soldering material contains preferably 50-80wt.% of Ag, preferably 15-50wt.% of Cu, preferably 5-20wt.% of In, preferably 0.5-3wt.% of Ti and 0.03-1.2wt.% of Ni. As an alternative, a soldering material for bonding a ceramic member (preferably sintered silicon nitride) and a metallic member is incorporated with Ag, Cu, In and Ti and with 0.03-1.2wt.% of Ni.

4. 发明专利

JPH07150908A CERAMIC-MADE ROLLER 失效
公开(公告)号：JPH07150908A
公开(公告)日：1995-06-13
申请号：JP32987993
申请日：1993-11-30
申请人： NGK SPARK PLUG CO
发明人： SUZUKI OSAMU , TANIGUCHI MASAHITO
IPC分类号： F01L1/14 , F01L1/18
摘要： PURPOSE:To prevent decrease or disappearance of a chamfering part caused by polishing the end surface of a ceramic-made roller. CONSTITUTION:A lift part 1 is provided on the end surface 3 of a,ceramic-made roller, and the top surface of this lift part 1 is polished, thereby a chamfering part 2 is prevented from invasion of a polishing margin. The positioning in the thrust, direction is made possible by making use of the top surface of the polished lift part 1.

5. 发明专利

JPH0275725A BALL BEARING TYPE TURBOCHARGED ROTOR 失效
公开(公告)号：JPH0275725A
公开(公告)日：1990-03-15
申请号：JP22793488
申请日：1988-09-12
申请人： NGK SPARK PLUG CO
发明人： SUZUKI OSAMU , ISHIDA NOBORU
IPC分类号： F02B39/00 , F01D25/16 , F16C19/54 , F16C23/06 , F16C35/06
摘要： PURPOSE:To enable the accurate correction of an unbalance rate in a rotor by setting the squareness of both end surfaces of a pipe at a specific value, in a construction where the pipe for deciding the position of a bearing is assembled to a rotor shaft. CONSTITUTION:In a turbocharger T, a rotor shaft 6 is supported rotatably in a centerhousing 3 by bearings 8, 9, while a pipe 7 is pressure-fitted around the rotor shaft 6 at its both end parts of the pipe 7 between the bearings 8, 9. The rotor shaft 6 is made of a metal, and is provided a recess except the pressure-fitted part of the pipe 7, while a space 13 is formed between the rotor shaft 6 and the pipe 7. In a construction like this, the squareness of both end surfaces of the pipe 7 is set less than 0.1%, whether such a space 13 is present or not. It is thus possible to correct accurately an unbalance rate of a rotor in a state where bearing inner wheels 8a, 9a and the pipe 7 are assembled to the rotor shaft 6.

6. 发明专利

JPH0633708A TAPPET FOR ENGINE AND PRODUCTION THEREOF 失效
公开(公告)号：JPH0633708A
公开(公告)日：1994-02-08
申请号：JP21379992
申请日：1992-07-17
申请人： NGK SPARK PLUG CO
发明人： SUZUKI OSAMU , TANIGUCHI MASAHITO
IPC分类号： B23K20/12 , C04B37/02 , F01L1/14
摘要： PURPOSE:To make depth of a cylindrical part in a lower half part shallow and make working of metallic material easy, by dividing a tapped body in two up and down pieces combining each of them together by friction welding after forming each of them with homogeneous metal material, and bonding a ceramic plate to the bottom wall of the lower half part. CONSTITUTION:The tappet body 2 of a tappet 1A for an engine is formed in a cylindrical shape with a bottom, with both a cylindrical guide 3 and a bottom wall 4. A recess 6 to receive the lower edge of a push rod is formed in the inner face center of the bottom wall 4. In this case, the tappet body 2 is divided in two as a pipe-like upper half part 2a and a lower half part 2b which includes at least the bottom wall 4. Both upper and lower half parts 2a, 2b are made of homogeneous metal material respectively. Moreover, both upper and lower half parts 2a, 2b are bonded together by friction welding. On the other hand, a ceramic plate 8 is bonded to the outer face of the bottom wall 4 in the lower half part 2b. Because of this, it is possible that the depth of a cylindrical part in the lower half part 2b is made shallow and the working is easily done, even when deep hole working is necessary.

7. 发明专利

JPH09264107A TAPPET 失效
公开(公告)号：JPH09264107A
公开(公告)日：1997-10-07
申请号：JP9900396
申请日：1996-03-27
申请人： NGK SPARK PLUG CO
发明人： OKINAKA MANABU , SUZUKI OSAMU , TANIGUCHI MASAHITO
IPC分类号： F01L1/14
摘要： PROBLEM TO BE SOLVED: To form a crowing in brazing and effectively prevent the damage of a ceramic tip in a tappet having the ceramic tip brazed to the end surface of a tappet body major diameter part by circumferentially providing a recessed groove near the end surface on the outer circumference of the tappet body major diameter part. SOLUTION: A tappet 1 used for engine has a body 1a finished into a mushroom shape having a cylindrical shaft part 1 having a prescribed outer diameter Da and a circular major diameter part 3, seen from the bottom, having an outer diameter Db larger than the outer diameter Da, which is concentrically provided on the point of the shaft part 2. The linear end surface 4 of the major diameter part 3 is flatly formed, and a ceramic tip 21 forming a cam contact surface is bonded thereto by brazing. A recessed groove 6 having a prescribed sectional form is circumferentially provided near the end surface 4 on the circumferential surface 5 of the major diameter part 3. The recessed groove 6 preferably has a depth of 2-4mm and a thickness in the circumferential surface 5 of the major diameter part 3 of 1-2mm. The recessed groove has a substantially U-shaped, V-shaped, or circular sectional form.

8. 发明专利

JPH0932515A TAPPET BODY 失效
公开(公告)号：JPH0932515A
公开(公告)日：1997-02-04
申请号：JP20642295
申请日：1995-07-19
申请人： NGK SPARK PLUG CO
发明人： TANIGUCHI MASAHITO , SUZUKI OSAMU
IPC分类号： F01L1/14
摘要： PROBLEM TO BE SOLVED: To form a crown to satisfy a design value in the case of applying a manufacturing method to form the crown by a difference in thermal contraction by joining a ceramic chip to a cup-shaped metallic tappet body. SOLUTION: A recessed groove 4 having a prescribed cross-sectional shape is peripherally arranged in the vicinity of a bottom surface 3 forming a contact plane of a ceramic chip 21 on the outer periphery 2 of a tappet body 1. Since an annular constricted part can be formed in the vicinity of the bottom surface 3, the vicinity of the bottom surface 3 becomes easily contractible in the radial direction in the process of cooling it by joining the cermaic chip 21 to its bottom surface 3 by brazing.

9. 发明专利

JPH07233711A COMPOSITE TAPPET AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH07233711A
公开(公告)日：1995-09-05
申请号：JP4989394
申请日：1994-02-22
申请人： NGK SPARK PLUG CO
发明人： TANIGUCHI MASAHITO , SUZUKI OSAMU
IPC分类号： F01L1/14 , B23K15/00 , B23K20/12 , B23K26/21 , B23K103/20 , C04B37/02 , B23K26/00
摘要： PURPOSE:To reduce the weight of a tappet while maintaing its abrasion resistance to the cam etc., to realize the improvement of the output performance or the low fuel consumption of an engine. CONSTITUTION:A tappet is divided into at least two or more, part needing a severe slide characteristic, e.g. part facing a cam sliding part or a push rod abutting surface etc., is composed of iron system metal parts 12 and 14, and part other than the parts is composed of aluminum system metal 13. These parts are integrated by friction pressure contact, laser welding, or electron beam welding, etc., to be adopted as a composite tappet 10. As required, a hard metal part 18 as a sintered metal part or a ceramic part is joined to the end surface of the iron system metal part 12 compsing a tappet head.

10. 发明专利

JPH04103809A MANUFACTURE FOR TAPPET 失效
公开(公告)号：JPH04103809A
公开(公告)日：1992-04-06
申请号：JP22358890
申请日：1990-08-24
申请人： NGK SPARK PLUG CO
发明人： TANIGUCHI MASAHITO , ITO MASAYA , SUZUKI OSAMU
IPC分类号： F01L1/14
摘要： PURPOSE:To reduce a material cost and work expense by dividing a tappet into an upper half part for constituting a guide part and a lower half part connected to a bottom wall, and integrating the upper half part with the lower half part by welding from an inner side. CONSTITUTION:A tappet 1 consists of a cylindrical guide part 3 and a bottom wall 2, and is in a bottomed cylindrical shape. A ceramic chip is jointed on the bottom wall 2. A semi-spherical recessed part 8, is formed in the center of the inner side surface of the bottom wall 2 in order to receive the bottom end of a push rod 6. The tappet 1 is formed by dividing it into an upper half part 3a for constituting the guide part 3 and a lower half part 3b connected to the bottom wall 2, fitting the recessed part and the projecting part of both end surfaces, to each other and welding together the fitting parts of the upper half part 3a and the lower half part 3b from the push rod side 6, namely, from the inner side of the tappet 1. It is thus possible to provide the tappet 1 with the ceramic chip connected thereto at a low cost.

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