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1. 发明专利

JP2004144114A Fastening bolt 审中-公开
公开(公告)号：JP2004144114A
公开(公告)日：2004-05-20
申请号：JP2002306509
申请日：2002-10-22
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： KONDO MITSURU , HASHIMOTO YUKIHIRO , HATTORI TAKAHIRO , CHIKAMI RINTAROU
IPC分类号： F16B35/00
摘要： PROBLEM TO BE SOLVED: To provide a fastening bolt having improved reliability, simple in construction and preventing fatigue damage due to bending load.
SOLUTION: The fastening bolt 2 is screwed up at its screw portion 2a by a nut 3 after one end passes through a bolt hole 1a of a fastened member 1. The fastening bolt 2 is screwed up at both ends by the nut 3 to fasten the plurality of fastened members 1. The fastening bolt 2 has a large diameter portion 2c as a partially thick portion which is located in the screw hole 1a of the fastened member 1. Namely, L+B≤l and 1/2≤B are established, where L is a distance between the screw portion 2a and the large diameter portion 2c, B is the length of the large diameter portion 2c and l is the thickness of the fastened member 1.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2003278597A Engine member, exhaust vale, piston crown and internal combustion engine 审中-公开
标题翻译：发动机部件，排气阀，活塞和内燃机
公开(公告)号：JP2003278597A
公开(公告)日：2003-10-02
申请号：JP2002079709
申请日：2002-03-20
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： OGUMA HIDETAKA , TORIGOE TAIJI , HATTORI TAKAHIRO , KOSHIRO YASUMASA , OGAWA AKIRA , KANIKAWA MASAYA , OKABE MASAHIKO
IPC分类号： F01L3/04 , C22C19/05 , C22C19/07 , F02F1/24 , F02F3/12 , F16J1/01 , F16J10/02
摘要： PROBLEM TO BE SOLVED: To provide an engine member having excellent high temperature corrosion resistance, and manufactured at low-cost, and also to provide an internal combustion engine having it.
SOLUTION: This engine member includes a cylinder 1, a piston crown 2 slidably fitted to the cylinder 1, and an exhaust valve 3 provided on the tip of the cylinder 1. A coating film formed of high temperature corrosion resisting coating material containing Ni and Cr is formed on the exhaust valve 3 constituting a combustion chamber 6. The coating film is preferably formed on the top 2a of a piston crown as well.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供具有优异的耐高温腐蚀性并以低成本制造的发动机构件，并且还提供具有该发动机构件的内燃机。解决方案：该发动机构件包括气缸1，可滑动地装配到气缸1的活塞冠2和设置在气缸1的尖端上的排气阀3.由耐高温涂层材料形成的涂膜包含 Ni和Cr形成在构成燃烧室6的排气阀3上。涂膜也优选形成在活塞顶部的顶部2a上。版权所有（C）2004，JPO

3. 发明专利

JPH11336059A FLOATING LIFT DEVICE 失效
公开(公告)号：JPH11336059A
公开(公告)日：1999-12-07
申请号：JP15838098
申请日：1998-05-22
申请人： MITSUBISHI HEAVY IND LTD
发明人： HATTORI TAKAHIRO , OKABE SHUNZO
IPC分类号： E02B7/50
摘要： PROBLEM TO BE SOLVED: To make a bank constructible at any time by a method wherein a movable structural body at the inside of a housing part is set afloat in a liquid entering into the housing part, and the movable structural body is made to project beyond the upper opening of the housing part. SOLUTION: A floating lift is constructed with a movable structural body 4 housed, capable of rising and falling, at the inside of a housing part 3 that is buried at the lower part of the ground G. While the structural body 4 is equipped with a lower floating structure 4a and an upper structure 4b, sealing surfaces 4c and 3c are provided respectively at the upper inclined wall of the floating structure 4a and the peripheral underside at the upper opening 3a of the housing part 3. When the structural body 4 is used for instance as a bank, buoyancy is given to the floating structure 4a with the inside of the housing part 3 filled with water, and the upper structure 4b is made to project upward beyond the upper opening 3a. On an occasion of nonuse, the structural body 4 is lowered with water 5 inside the housing part 3 discharged, making the structural body not obstructive, and thereby a bank or a partition wall at the site for an exhibition or the like can be formed simply. Furthermore, sufficient safety can be ensured as sealing is made automatically when used as a bank.

4. 发明专利

JPH06159378A SHAFT FITTING PORTION 失效
公开(公告)号：JPH06159378A
公开(公告)日：1994-06-07
申请号：JP32618492
申请日：1992-11-12
申请人： MITSUBISHI HEAVY IND LTD
发明人： YAMAUCHI TAKAMASA , HATTORI TAKAHIRO , FUJIWARA MASAHARU
IPC分类号： F16B2/14 , F16D1/06 , F16D1/09
摘要： PURPOSE:To realize easy fitting by giving desired surface pressure and also realize simple opening. CONSTITUTION:This portion is equipped with inside wedge materials 5 whose inner peripheral surface come into contact with a rotary shaft 2 and whose outer peripheral surfaces are formed into inclination surfaces inclined axially; an outside wedge material 6 of a cylindrical outer surface at whose inner peripheral surface an inclination surface contacting the inclination surfaces of these inside wedge materials 5 is formed; a rotary body boss portion 3 which has an inner peripheral surface contacting the cylindrical outer surface of the outside wedge material 6 and where an end surface to catch the end surface of the inside wedge materials 5 is formed; and tightening means 7 to conduct tightening by drawing the outside wedge material 6 into the inner peripheral surface inside of the rotary body boss portion 3.

5. 发明专利

JP2000136751A LONG BOLT STEADYING DEVICE 失效
公开(公告)号：JP2000136751A
公开(公告)日：2000-05-16
申请号：JP31216798
申请日：1998-11-02
申请人： MITSUBISHI HEAVY IND LTD
发明人： HATTORI TAKAHIRO , HOSOKAWA TADASHI
IPC分类号： F02F1/00 , F16B35/00
摘要： PROBLEM TO BE SOLVED: To reduce the stress of a steadying device for a long bolt including a tie bolt and prevent fretting corrosion fatigue at a contact between a bushing for a steadying mechanism and the long bolt. SOLUTION: In this steadying device for a long bolt which has a thinner portion 1a, smaller than the outer diameter of another larger portion 1b, at the middle, in which a two-split bushing 8 is fitted, the long bolt is formed by linking the thinner portion 1a at its ends to the larger portion 1b via a smooth curved face and the bushing 8 is provided with curved faces on the inner peripheries at its ends and tapered faces on the outer peripheries, so that the bushing 8 is fitted in contact with both curved faces and a tapered link 9 is inserted in the outer peripheries of the bushing in press contact of its tapered face with the tapered faces of the bushing 8 for fixing the bushing 8 to the long bolt via the tapered link 9.

6. 发明专利

JPH08297079A REMAINING-LIFE EVALUATION METHOD FOR NI-BASED HEAT-RESISTANT ALLOY 失效
公开(公告)号：JPH08297079A
公开(公告)日：1996-11-12
申请号：JP12557295
申请日：1995-04-27
申请人： MITSUBISHI HEAVY IND LTD
发明人： SAKON TOSHIO , HATTORI TAKAHIRO
IPC分类号： G01L1/00 , G01M99/00 , G01N3/00 , G01N3/32 , G01N17/00 , G01N33/20
摘要： PURPOSE: To obtain a remaining-life evaluation method in which a creep rupture life (hysteresis time/creep rupture life) can be determined and evaluated quickly and objectively by measuring a slenderized change (rafting) in a γ' phase by long-time use at a high temp. and using the Larson-Miller parameter(LMP). CONSTITUTION: Regarding a material whose temperature and time hysteresis is know, a change in a γ' phase is measured in advance, a calibration curve regarding the mean value and the LMP of a common equivalent diameter is prepared, the γ' phase of an object to be evaluated is applied, and a metal use temperature is estimated. In addition, the mean value of a circle equivalent diameter at the γ' phase in a perpendicular face and a parallel face in the stress load direction of the γ' phase is found, and the change is put in order, and a metal temperature is estimated. Then, the ratio (aspect ratio) of the long diameter to the short diameter of the γ' phase is found by an image processor, and the ratio of a stress application face to a no-load face is found as a rafting ratio. Then, on the basis of the relationship between the rafting ratio at every temperature and every time and the LMP, a creep rupture life ratio is estimated.

7. 发明专利

JP2001281121A FRETTING FATIGUE TEST DEVICE AND FRETTING FATIGUE ESTIMATION METHOD 失效
公开(公告)号：JP2001281121A
公开(公告)日：2001-10-10
申请号：JP2000089680
申请日：2000-03-28
申请人： MITSUBISHI HEAVY IND LTD
发明人： BODAI MASARU , KONDO YOSHIYUKI , HATTORI TAKAHIRO
IPC分类号： G01N3/32
摘要： PROBLEM TO BE SOLVED: To estimate accurately a fretting fatigue limit. SOLUTION: Fretting fatigue is estimated by using a peak stress at which the fretting fatigue is generated. A strain gage 20 is installed near a contact end 30 between a test piece 3 and a pad 5 to acquire the peak stress generated at the contact end 30.

8. 发明专利

JPH11156238A DISCHARGE WIRE CONNECTING STRUCTURE OF ELECTROSTATIC PRECIPITATOR 失效
公开(公告)号：JPH11156238A
公开(公告)日：1999-06-15
申请号：JP34384797
申请日：1997-11-28
申请人： MITSUBISHI HEAVY IND LTD
发明人： HATTORI TAKAHIRO , TSUCHIYA KIJU
IPC分类号： B03C3/41
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of a charge trip by contact of a discharge wire with a dust precipitation plate by disposing a detaining means for detaining the inclination of the discharge wire with respect to upper and lower bar materials in a section apart a specified distance from weld zones between these bar materials and the discharge wire. SOLUTION: The discharge wire 1 is joined to the upper round bar 4 by bending the discharge wire nearly perpendicularly near the weld zone 6 of its end to the upper round bar 4 to press this part to the outer periphery of the upper round bar 4 and applying spot welding in this contact part. At this time, a pawl 9 as the detaining means is formed in the section on the lower side in proximity to the weld zone 6 of the discharge wire 1, i.e., the side where a crack 7 can occur. This pawl 9 is disposed successively with the bent part of the discharge wire 1 and is so formed as to embrace the upper or lower round bar 4 from the outer side, by which the opening width B thereof is made smaller than the outside diameter D of the upper round bar 4. As a result, the inclination of the discharge wire 1 may be detained by the pawl 9 and, therefore, the occurrence of the charge trip may be prevented.

9. 发明专利

JPH09296826A BOLT FASTENING STRUCTURE 失效
公开(公告)号：JPH09296826A
公开(公告)日：1997-11-18
申请号：JP13254096
申请日：1996-05-01
申请人： MITSUBISHI HEAVY IND LTD
发明人： HATTORI TAKAHIRO , FUJIWARA MASAHARU
IPC分类号： F16B43/00 , F16D1/033 , F16D1/076 , F16D1/09 , F16D1/02
摘要： PROBLEM TO BE SOLVED: To reduce the loss of tensile force of a fastening bolt by decreasing frictional force between the fastening bolt and taper bushes. SOLUTION: A taper bush to be inserted together with a fastening bolt 2 into through holes of both bodies to be fastened 1a, 1b is formed by combining an outer taper bush 4o whose inner surface is tapered with a taper bush 4i whose outer surface is tapered, and the fastening bolt 2 is a bolt having no tapered part. The outer taper bush 4o is brought in pressure-contact with the through holes of the bodies to be fastened 1a, 1b by receiving one of the inner and outer taper bushes 4i, 4o and pressing the other one by a hydraulic loading device 9, and both bodies to be fastened 1a, 1b are fastened to each other by applying tension to the fastening bolt 2 with fitting nuts 3a, 3b by the hydraulic loading device 9.

10. 发明专利

JP2003097712A PISTON RING, PISTON AND PISTON ENGINE 审中-公开
公开(公告)号：JP2003097712A
公开(公告)日：2003-04-03
申请号：JP2001295287
申请日：2001-09-27
申请人： MITSUBISHI HEAVY IND LTD
发明人： YAMASHITA KAZUHIKO , KODAMA TOSHIO , HATTORI TAKAHIRO
IPC分类号： F16J9/28 , F16J1/00 , F16J1/08 , F16J9/00 , F16J9/12 , F16J9/20 , F16J9/22 , F16J9/26
摘要： PROBLEM TO BE SOLVED: To provide a piston ring capable of reducing quantity of a lubricating oil supplied from an oilhole without increasing friction and abrasion, a piston equipped with the piston ring, and a piston engine equipped with the piston. SOLUTION: This piston ring 10 is arranged in a plurality of ring grooves 12 formed on a piston body 11 mainly in order to keep airtightness of a high pressurized gas G generated on a piston head 13 side. The piston ring 10 is made of a thermoplastic resin having a self-lubricating property.

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