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91. 发明专利

JPH10159803A ACCUMULATOR 失效
公开(公告)号：JPH10159803A
公开(公告)日：1998-06-16
申请号：JP31826096
申请日：1996-11-28
申请人： NIKKISO CO LTD
发明人： NOGAMI HIROSHI , KONISHI YOSHIAKI
IPC分类号： F15B1/08
摘要： PROBLEM TO BE SOLVED: To enable any large-sized metallic container to be unnecessary by making an accumulator directly connectable to a pump delivery pipe by providing a pressure variation absorbing member whose volume changed reversible to any change in the internal pressure along the longitudinal direction inside of a tube body in which fluid passes through. SOLUTION: Fluid discharged from the delivery port of a pump flows from the central hole 41A of the first end plate 41 into a flow passage 2 and is discharged from the central hole 42A of the second terminal plate 42. When a pressure in the flow passage 2 rises, the walls on the flow passage sides of air chambers 11a to 11d are pressed to the pipe wall side of a tube body 3 and volume variable parts 1a to 1d are contracted and also the sectional area of the flow passage 2 is enlarged. Thereby, any pressure rise in the flow passage 2 is absorbed. On the other hand, when the pressure in the flow passage 2 descends, because the walls on the flow passage 2 sides of air chambers 11a to 11d are pressed to the central side of the tube body 3 by air pressure sealed in the air chambers 11a to 11d, the volume variable parts 1a to 1d are expanded, resultantly the sectional area of the flow passage 2 is contracted. Accordingly, any pressure drop in the flow passage 2 is absorbed.

92. 发明专利

JPH10159802A ASSEMBLING DEVICE FOR ACCUMULATOR 失效
公开(公告)号：JPH10159802A
公开(公告)日：1998-06-16
申请号：JP31752596
申请日：1996-11-28
申请人： NOK CORP
发明人： IMAI MAMORU
IPC分类号： F15B1/08
摘要： PROBLEM TO BE SOLVED: To provide an assembling device for an accumulator by which working efficiency can be enhanced. SOLUTION: A fitting leg 5 is fixed to the outer circumference 2a of a shell 2 on the open end side. The screw thread part 8b of a pull rod 8 is screwed in the thread hole 4d of the fitting leg 5, and when a force is transmitted to the axial part 8a of the pull rod 8, the axial part 8a is outwardly moved in the axial direction L of the shell 2 while being rotated. A gas port 11 is connected to the axial part 8a through a connecting member 12, and the gas port 11 that is connected to a bladder 10 housed inside the shell 2 is moved to a prescribed position together with the axial part 8a. In the prescribed position, the axial part 8a is fixed to the width-directional part 4b of the fitting leg 5 by means of a nut 13, and the gas port 11 and the bladder 10 are held in a prescribed position. Thus, the gas port 11 can be tightened and fixed to the shell 2 only by one worker without using large human power.

93. 发明专利

JP2744817B2 失效
公开(公告)号：JP2744817B2
公开(公告)日：1998-04-28
申请号：JP24326889
申请日：1989-09-19
IPC分类号： F15B1/08 , C08F283/00 , C08G18/62 , C08G81/02 , C08J5/18 , F15B1/10

94. 发明专利

JPH1072093A PRESSURE TANK 失效
公开(公告)号：JPH1072093A
公开(公告)日：1998-03-17
申请号：JP9732397
申请日：1997-04-15
申请人： SAYAMA SEISAKUSHO KK
发明人： SAYAMA IWASAKU , TANJI TOMOTAKA , OBAYASHI AKIRA
IPC分类号： B65D90/48 , B67D7/72 , F04B43/02 , F15B1/08 , F17C13/00 , F17C13/02 , F17C13/12 , B67D5/54
摘要： PROBLEM TO BE SOLVED: To inject air to a set pressure into a pressure accumulating chamber to supply water by a stable water pressure, extend the life of a water supply pump, and reduce the generation of noises by providing a detection means which outputs an abnormality signal when detecting an expansion of an elastic body to the pressure accumulating chamber side exceeding a set range. SOLUTION: When the air of an air accumulating chamber Rp leaks from an air valve 3, a diaphragm 2 exceeds a set range, and expands to the air accumulating chamber Rp side, and a moving body 45 of a detector 4 is raised, a magnet 46 ascends as well, and by the ascent of the magnet 46, a lead switch 47 is placed under an on state, and an abnormality signal is output. For this reason, an abnormal displacement of the diaphragm 2 to the air accumulating chamber Rp side can be detected by the output signal of the lead switch 47. Therefore, by injecting air to the air accumulating chamber Rp to a set pressure based on the output signal of the lead switch 47, and water can be supplied by a stable water pressure, and the starting/stopping of a water supply pump becomes appropriate, and the life of the water supply pump can be extended, and the generation of noises can be reduced.

95. 发明专利

JPH1054401A SPLIT RING OF ACCUMULATOR 失效
公开(公告)号：JPH1054401A
公开(公告)日：1998-02-24
申请号：JP21130596
申请日：1996-08-09
申请人： SUGIMURA NOBUYUKI , SUGIMURA TOMU
发明人： SUGIMURA NOBUYUKI , SUGIMURA TOMU
IPC分类号： F15B1/08
摘要： PROBLEM TO BE SOLVED: To prevent the fatigue failure of an intake/exhaust cylinder being an insertion body by a split ring, by forming of a specific number of C-type ring parts, the splint ring engaged with the locking part of the insertion body inserted in the end part of a container main body. SOLUTION: An intake/exhaust cylinder 11 being an insertion body is inserted and attached in the bottom part 10 of a container main body 1, and a locking part 15 is arranged on the intake/exhaust cylinder 11. The locking part 15 is annually formed, and the height and hooking length thereof are suitably arranged. A split ring 20 is inserted and attached to the upper end part 11c of the intake/exhaust cylinder 11. The split ring 20 is formed into a cylindrical body, and divided into three C-type ring parts by projecting an engaging part on the lower inner surface of a straight cylindrical part. The intake/exhaust cylinder 11 is moved in a tightening axial direction by a nut 30, and sandwiched by the engaging part of the split ring 20 brought into pressure contact with the locking part 10c of a bottom part 10, and the nut 30. When pressure liquid P goes in and out from the inside of a liquid chamber 3, stress concentration is generated at the root of the locking part 15 of the intake/ exhaust cylinder 11 through the split ring 20. The split ring 20 comprises three C-type ring parts, therefore, stress is dispersed into three so as to reduce stress concentration, and fatigue failure can be prevented.

96. 发明专利

JPH09303303A ACCUMULATOR 失效
公开(公告)号：JPH09303303A
公开(公告)日：1997-11-25
申请号：JP12041396
申请日：1996-05-15
申请人： NOK CORP
发明人： YUDA AKIO
IPC分类号： F15B1/08
摘要： PROBLEM TO BE SOLVED: To prevent the generation of abrasion with the friction even in the case where a bladder contacts a fitting tool so as to be slid, and to prevent a bladder from being damaged in an accumulator by providing a sliding material in a surface of a fitting tool for holding a fitting part of a bladder, which contacts with the bladder. SOLUTION: When the pressure operating liquid works to a liquid chamber 17, a bladder 2, which receives this pressure, compresses a gas chamber 16, and the liquid chamber 17 is moved to the gas chamber 16 side. At this stage, a fitting part 5 side of the bladder 2 is joined with the fitting tool 6 with friction. At the same time, the maximum stress is applied to the fitting part 5 side, the fitting part 5 side is extended. Furthermore, the gas of the gas chamber 16 tries to pass through the fitting part 5 side. These cooperative work is applied to a part near the fitting part 5, and a previous contact, which causes damage in an early time, is generated in the part near the fitting part 5. But, a slide material 18 having a small coefficient of friction is interposed in a surface of the fitting tool 6 to be joined with the bladder 2, and friction of the bladder 2 is reduced, and extension of this part is prevented, and damage to a part near the fitting part 5 of the bladder 2 is effectively prevented.

97. 发明专利

JPH09250512A BLADDER TYPE HYDRAULIC DEVICE 失效
公开(公告)号：JPH09250512A
公开(公告)日：1997-09-22
申请号：JP6241696
申请日：1996-03-19
申请人： EBARA CORP
发明人： SATO KATSUMI
IPC分类号： F15B1/08 , F15B21/14
摘要： PROBLEM TO BE SOLVED: To reduce a cost by decreasing its number in a bladder type accumulator and also improve the safety. SOLUTION: This device is constituted so that the discharged pressure oil from a variable displacement pump 8 is retained by using the compressibility of the gas in an elastical rubber bladder 2 provided in a steel container 1. In this case, the bladder 2 is connected to a pressure gas holder 6, a gas is not sealed off in the bladder 2, and when the pressure oil in an accumulator 3 is consumed, the only necessary compression gas in the pressure gas holder 6 is led automatically into the bladder 2 to expand the bladder 2.

98. 发明专利

JPH09242702A ACCUMULATOR 失效
公开(公告)号：JPH09242702A
公开(公告)日：1997-09-16
申请号：JP4765196
申请日：1996-03-05
申请人： NOK CORP
发明人： SASAKI KENJI
IPC分类号： F15B1/02 , F15B1/08
摘要： PROBLEM TO BE SOLVED: To make a bladder of an inexpensive material and to simplify its structure by forming an orifice hole in the bladder for dividing a shell empty chamber into a port flow-in chamber and an orifice flow-in chamber, the orifice hole being for communicating both chambers. SOLUTION: An empty chamber 5 in a shell 2 is divided into an orifice flow-in chamber 19 and a port flow-in chamber 20 by a bladder 14 and an orifice hole 18 for communicating the orifice flow-in chamber 19 and the port flow-in chamber 20 to each other is formed in the bladder 14. The material of the bladder 14 is a resin or rubber and gas transmissivitiy is not a problem. An impact pressure produced in a piping line is caused to flow into the port flow-in chamber 20, the bladder 14 is pressed to the orifice flow-in chamber 19 and simultaneously a fluid is caused to flow from the orifice hole 18 into the orifice flow-in chamber 19. The moment the pressure of the port flow-in chamber 20 becomes smaller than that of the orifice flow-in chamber 19, the fluid of the orifice flow-in chamber 19 is caused to flow out through the orifice hole 18 to the port flow-in chamber 20 side. By repeating this operation, an impact face is absorbed. Thus, a shape is made small and an inexpensive material is provided.

99. 实用新型

JP2542939Y2 失效
公开(公告)号：JP2542939Y2
公开(公告)日：1997-07-30
申请号：JP11071490
申请日：1990-10-23
IPC分类号： F15B1/08

100. 发明专利

JPH09151830A FUEL INJECTION DEVICE 失效
公开(公告)号：JPH09151830A
公开(公告)日：1997-06-10
申请号：JP33600895
申请日：1995-11-30
申请人： MIKUNI KOGYO KK
发明人： HATSUMI YONOSUKE
IPC分类号： F02M55/02 , F02M69/46 , F15B1/08
摘要： PROBLEM TO BE SOLVED: To effectively impede the propagation of pulsation from a fuel distribution pipe to a fuel feed pipe by building a pulsation absorbing means for absorbing and damping pulsation by the internal volume fluctuation of an elastic hollow body, in the fuel distribution pipe for distributing fuel to injectors. SOLUTION: In a fuel injection device with a fuel force-feed pump fitted to the end part of a fuel feed pipe 14 extended from one end of a fuel distribution pipe 10 to which a plurality of injectors 12 are connected, a pulsation absorbing means 26 formed of an elastic hollow body 28 and a frame body 30 enclosed therein is built in the fuel distribution pipe 10, at the opposite side end part to the end connection of the fuel feed pipe 14. In this case, the end part of the fuel distribution pipe 10 is formed into an enlarged end part 34, and an edge bead 32 of the elastic hollow body 28 is enclosed in the enlarged end part 34 and made collide with the inner annular shoulder part to close the open end of the fuel distribution pipe 10. Pulsation is damped and absorbed by the internal volume change of the elastic hollow body 28.

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