| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 721 | Bearing device for swash plate type axial plunger pump | JP6981697 | 1997-03-24 | JPH10266946A | 1998-10-06 | OUCHI HIDEO |
| PROBLEM TO BE SOLVED: To prevent a bearing part from wearing abnormally and endure high speed rotation or strict condition, by providing the outer peripheral of a thrust bearing which allows a swash plate to rotate with a sealing means which prevents lubricant from leaking out of bearing region. SOLUTION: Between a swash plate 23 and a rotor 22, and between the rotor 22 and a housing 21 of a swash plate type plunger pump 100, bearing devices 1A, 1B which are composed of a thrust bearing equipped with balls 3 which are arranged rotatably with certain intervals between a pair of facing races 2a, 2b. Lubricant such as grease is coated on the balls 3 and their circumference, and a sealing ring 8 which prevents lubricant from leaking out of bearing region is placed on the outer peripheral part of races 2a, 2b respectively of bearing devices 1A, 1B such that the ring covers the area coated by lubricant. The sealing ring 8 includes a seal lip composed of metal core and elastic material, and each end engages with a groove which is formed in the outer peripheral side part of the facing races 2a, 2b and contacts with the side face of the groove. COPYRIGHT: (C)1998,JPO | ||||||
| 722 | Axial piston pump | JP25272186 | 1986-10-23 | JP2787306B2 | 1998-08-13 | INOE ATSUSHI; NAKAZATO MASAKAZU |
| 723 | Working fluid distributor for piston type hydraulic motor or hydraulic pump | JP34204796 | 1996-12-20 | JPH10184531A | 1998-07-14 | KIN KEIGI; TEI TOSHU; RI YOBYON |
| PROBLEM TO BE SOLVED: To hold uniform hydraulic pressure and a flow rate within low speed operation, and increase effective use rotating speed so as to improve operating efficiency by arranging a distributing plate for assisting dynamic balancing of a plate valve which rotates on a center in a valve casing and a pressure plate on both side surfaces of the plate valve. SOLUTION: A distributing plate 2 for assisting dynamic blancing of a plate valve 10 which rotates on a center in a valve casing 6 and a pressure plate 7 are arranged on both side surfaces of the plate valve 10, and a gap holding ring 9 for reducing mechanical friction of the plate valve 10 is arranged between the distributing plate 2 of an outer periphery of the plate valve 10 and the pressure plate 7. The plate valve 10, the distributing plate 2, and the pressure plate 7 are mounted and supported to a main body 1 by the valve casing 6. Both upper and lower side surfaces of the plate valve 10 are formed in a shape which is symmetrically with each other, and a dynamic balancing condition is held between the distributing plate 2 and the pressure plate 7. A part of the peripheral surface of the plate valve 10 is notched so as to reduce rotary inertia force and an oil leaking rate. COPYRIGHT: (C)1998,JPO | ||||||
| 724 | Holding device for axial piston machine | JP30766897 | 1997-11-10 | JPH10169548A | 1998-06-23 | ENGEL WILLIAM K |
| PROBLEM TO BE SOLVED: To hold a sliding surface of a shoe in a flat and parallel direction so as to prevent chipping of the shoe by providing with a shoe plate arranged in the radial direction along a center line of a reference circumferential surface, and a power transmission part where respective projection surfaces are brought into contact with respective bearing surfaces of each of shoes. SOLUTION: A holding device 28 is a shoe plate 32 shown by a center line 34 of a reference circumferential surface. A shoe moves in a track shown by a center line 34 as well as regulating a drain amount from a minimum rate to a maximum rate by a swash plate. The shoe plate 32 is arranged in the radial direction around a center line 34 of the reference circumferential surface, and is provided with a plurality of openings 36 which are partitioned in the center line 34. The shoe plate 32 is provided with an external part 37 and an internal part 38. A plurality of projection surfaces 40 are formed on a power transmission part 39 of the shoe plate 32. Even if the position in the opening is changed, the projection surface 40 holds a contact of the shoe and a bearing surface in the axial direction so as to prevent chipping of the shoe 18. | ||||||
| 725 | Water circulating device for generation | JP30077896 | 1996-10-07 | JPH10110665A | 1998-04-28 | KOBAYASHI KESAO |
| PROBLEM TO BE SOLVED: To generate electric power by means of a small quantity of water by arranging a vacuum pump connected to a water storage tank, facing a generating vane to the inside of a vertically movable pipe in which water sucked by means of the vacuum pump flows, and driving a piston pump via a watermill by means of water used for generation. SOLUTION: In operation, a vacuum pump 15 is driven first of all, and when a pipe 3 becomes a vacuum, a valve 16 is opened. In this way, water 2 inside a water storage tank 1 is pumped up into the pipe 3 according to the principle of a siphon and discharged from a tip part 4 of the pipe 3 so as to be flushed in a water passage groove 5 quickly, so that a generating vane 7 arranged inside the water passage groove 5 is rotated so as to drive a generator ...8. Subsequently, a watermill 9 is rotated by means of high pressure water flow discharged from a cylindrical water discharge port 6 arranged in the other end of the water passage groove 5, and on the basis of an operation of cams 12... integrally arranged in a watermill shaft 11, piston pumps 10... are driven, and then, the water inside a water reservoir 14 is pumped up into the water storage tank 1 so as to be circulatorily used. COPYRIGHT: (C)1998,JPO | ||||||
| 726 | Pump for pressurizing fuel of fuel injection device | JP23277096 | 1996-09-03 | JPH1077930A | 1998-03-24 | AKIBA HIROKAZU |
| PROBLEM TO BE SOLVED: To promptly emit vapor inside of a pump when an engine is started. SOLUTION: A low pressure regulator 27 is provided at a suction passage 5 and a pressure regulation is performed for fuel fed from a supply pump 2 which is motor-driven by the regulator 27. The low pressure regulator 27 is provided with a drain port 30 which is communicated with an input passage 5 and a valve element 32 clogging the drain port 30 by being pressed with a spring 31. The low pressure regulator 27 is provided with a solenoid valve 33 pressing the valve element 32 in an injection-opening valve direction for prescribed time when an engine is started. When the solenoid valve 33 locks the valve element 32 when the engine is started, the pressure regulation is not performed for high pressure fuel fed from the supply pump 2 and fuel is supplied to the inside of the pump. Vapor at the inside of the pump is swept with the high pressure fuel. | ||||||
| 727 | Hydraulic pump having pressing mechanism | JP32504296 | 1996-12-05 | JPH09177661A | 1997-07-11 | ANSONII EMU KURAASU |
| PROBLEM TO BE SOLVED: To provide a pump having a piston pressing mechanism having a simple piston structure. SOLUTION: A pump is provided with an oscillating plate, a body part, a pair of piston assemblies reciprocated by the oscillating plate in the body part, and a pressing mechanism 10a for holding the piston assemblies in an oscillating plate-contacted state. The pressing mechanism 10a is provided with a yoke member 171 coming in contact with the piston assemblies, and a support member 187 installed on the body part. The support member 187 has a recessed face. The yoke member 171 has a protruded face coming in contact with the recessed part for journaling the recessed part. The support member 187 cooperates with the yoke member 171 to allow the yoke member to oscillate on a flat face substantially agreeing with the central axial line of the body part. COPYRIGHT: (C)1997,JPO | ||||||
| 728 | Piston pump with improved hold-down mechanism | JP25656795 | 1995-10-03 | JPH08177717A | 1996-07-12 | ANSONII EMU KURAASU |
| PROBLEM TO BE SOLVED: To increase operation speed of a pump by providing retention fingers for keeping the contact of a piston assembly with a wobble precession plate in the pump having a plurality of pressure-feed piston reciprocated by the wobble plate. SOLUTION: A pump 11, provided with a wobble plate 35 and a piston assembly 49 reciprocated by this wobble plate 35, is provided with a mechanism 10 which is in contact with the wobble plate 35 to hold the piston assembly 49. This hold mechanism 10 is provided with a hold plate 69 having a plurality of retention fingers extending redially, so that each finger enters in individual filling opening 57 of the piston assembly 49 and keeps contact of the assembly 49 with the wobble plate 35 of the pump. That is, a shoe 111 of the piston is held, in such a way that it is rubbed on the wobble plate 35 and prevents the piston assembly 49 from leaving the wobble plate 35. COPYRIGHT: (C)1996,JPO | ||||||
| 729 | Axial piston device | JP51160794 | 1993-10-27 | JPH08501856A | 1996-02-27 | カルル クリスチャン ディキセン |
| (57)【要約】 揺動板（３）に対して回転可能なシリンダーボディ（２）を有し、該シリンダーボディ内で数個のピストン（６）が軸方向変位可能に配置され、前記ピストンは該ピストンの自由端に関節結合された摺動シュー（９）を介して前記揺動板（３）の摺動接触面（４）に支持され、前記摺動シュー（９）を前記摺動接触面（４）に保持する圧力要素（１３）が設けられたアキシャルピストン装置が、説明される。 その様な種類のアキシャルピストン装置の内部漏れを減少することが望ましい。 そのために、ばね要素（１６）が、各摺動シュー（９）と圧力要素（１３）との間に設けられている。 | ||||||
| 730 | Shoe structure for hydraulic pump, etc. | JP12449194 | 1994-05-13 | JPH07310825A | 1995-11-28 | MIZUSAKI HISAYOSHI; OHORI TAKASHI |
| PURPOSE: To provide not only given sliding ability but also an excellent pull-off strength and given durability when coupling is effected under arrangement of a spherical coupling structure at the tip of a piston. CONSTITUTION: In the shoe structure of a hydraulic pump having a shoe 10 coupled under arrangement of a spherical coupling structure at the tip of a piston 1 and brought into slide contact with a swash plate 2, a slide contact part 11 brought into the swash plate 2 which forms the front side of the shoe 10 is formed of bronze and a portion 12 of which the spherical coupling structure forming the back side of the shoe 10 consists is formed of a steel. The portion 12 of which the spherical coupling structure consists is formed integrally with a slide contact 11 and the portion 12 of which the spherical coupling structure consists and the slide contact part 11 are integrally formed through a portion the diameter (d) of which is set to a value lower than the diameter D of the piston 1. COPYRIGHT: (C)1995,JPO | ||||||
| 731 | Variable displacement swash plate type hydraulic unit | JP16673587 | 1987-07-03 | JPH0723746B2 | 1995-03-15 | 芳浩 中島; 卓志 松任; 勉 林; 健二 榊原; 充 齋藤 |
| 732 | Web plate type compressor | JP13783793 | 1993-06-08 | JPH06346841A | 1994-12-20 | MURAKAMI KAZURO; GOTOU KUNIFUMI; KAWAGUCHI MASAHIRO |
| PURPOSE:To provide a web plate type compressor which can reduce partial abrasion of and early abrasion of a web plate and shoes, and prevent occurrence of oscillations and noises. CONSTITUTION:Shoes 17, 18 are each composed of large and small cylindrical surfaces having different radii of curvature. Rolling of shoes 17, 18 is regulated in respect to a piston and a web plate. The shoes 17, 18 are slid aginst the web plate, and the sliding portions are in surface contact codition. The contact pressure of the web plate in respect to the shoes 17, 18 can be reduced. | ||||||
| 733 | Conical rod piston | JP3288892 | 1992-01-24 | JPH06201041A | 1994-07-19 | ROI JIEI ROZEKU |
| PURPOSE: To provide a wobble-type piston rod device capable of withstanding non-axial stress and strain forces induced by reciprocation motion of a crankshaft ring. CONSTITUTION: A piston rod device 10 for use in a diaphragm pump 16 comprises a crankshaft ring 12, a conical piston, and a piston rod 14. The conical piston 14 is formed in a V-shape and has its end 18 joined to the crankshaft ring 12 by a joint 20. The piston 14 is provided with a radial flange 46, which is mounted on the underside of the diaphragm 36 attached to the cylinder 44. The piston 14 is of the wobble-type, which exerts stress and strain force along the axis of a cone since it does not reciprocate along a liner path. | ||||||
| 734 | Piston for axial piston fluid translating device, and its manufacture | JP593193 | 1993-01-18 | JPH05269628A | 1993-10-19 | Jr Guy C Carlson; William K Engel; Howard Savage; David P Smith; Phillip J Wenger; ケー．エンゲル ウィリアム; シー．カールソン ジュニア ガイ; ピー．スミス デビッド; サベージ ハワード; ジェイ ウェンガー フィリップ |
| PURPOSE: To reduce the weight of a piston by forming a bore of large diameter and a bore of smaller diameter than a part from the bore of large diameter to an installation end of the piston in a piston body. CONSTITUTION: A piston 10 is provided with a cylindrical body 12 having an outer surface, and a first bore 22 of large diameter extending from the outer surface to an annular shoulder 24 is formed in the body 12. In addition, a second bore 26 is extended from the annular shoulder 24 to a specified depth. A tube 34 is inserted from the first bore 22 to a specified distance of the second bore 26. A cap 30 is positioned so as to be abutted on at least one part of the external surface of the body 12, and the tube 34 is slidably received by the cap through the bore 26. The cap 30 is brazed to the body 12, and the tube 34 is brazed to the cap 30 and the body 12 to form an annular hole 54 separated in the piston 10. | ||||||
| 735 | Axial piston machine | JP33334391 | 1991-12-17 | JPH04276101A | 1992-10-01 | TOOMASU REFURAA |
| PURPOSE: To manufacture a holder inexpensively, and easily assemble it by preventing the motion in the axial direction of a holding plate by the holder to be locked in a bayonet coupling shape in the axial direction. CONSTITUTION: A working piston 8 of a swash plate type axial piston machine is supported by a swash plate 11 through a slide shoe 9, and a holding plate 12 ensures the slide shoe 9 from an inconvenient separating motion from the swash 11 during, for example, the sucking motion. COPYRIGHT: (C)1992,JPO | ||||||
| 736 | Swash plate plunger type hydraulic system | JP2693991 | 1991-01-28 | JPH04252876A | 1992-09-08 | KAWAHARA EIICHIRO; NAKAMURA TAKASHI; FURUMOTO MITSUMASA; SAKAI KAZUAKI |
| PURPOSE: To press a retainer plate and hold it under pressure in use of pressing force of a discharge side plunger, making this plate perform the positioning and holding of a shoe, by engaging this integral-structural shoe surely with the retainer plate without splitting it. CONSTITUTION: A necking part 21 consisting of a ring groove is formed on the outer circumferential surface of a shoe member 20, and plural pieces of shoe holding holes 32, taking in this necking part 21 and engaging and holding the shoe member 20, are formed in a retainer plate 30, while a notch 33, connecting the shoe holding hole 32 and an outer circumferential end or inner circumferential end of the retainer plate 30, is formed there. Then, the necking part 21 is taken into the shoe holding hole 32 through this notch 33, and thus the shoe member 20 is surely engaged with the retainer plate 30. COPYRIGHT: (C)1992,JPO&Japio | ||||||
| 737 | JPH0364714B2 - | JP8696279 | 1979-07-11 | JPH0364714B2 | 1991-10-08 | RARUFU KURISUTAA EBU PETASON |
| 738 | JPH0324896Y2 - | JP7217885 | 1985-05-17 | JPH0324896Y2 | 1991-05-30 | |
| 739 | JPH0227191Y2 - | JP3240980 | 1980-03-12 | JPH0227191Y2 | 1990-07-23 | |
| 740 | JPH02500459A - | JP50698387 | 1987-11-26 | JPH02500459A | 1990-02-15 | |
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