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公开(公告)号：US20170335810A1
公开(公告)日：2017-11-23
申请号：US15533209
申请日：2015-11-24
Applicant: FUJIKOKI CORPORATION , DENSO CORPORATION
Inventor： Masahiro TOMITSUKA , Shin YOSHIDA , Makoto SUDO , Akinori NANBU , Osamu HISHINUMA , Hiroatsu YAMADA
IPC: F02M37/00
CPC classification number: F02M37/0041 , F02M59/36 , F02M59/44
Abstract: A diaphragm includes a flange and a protrusion provided to protrude to one side of the flange, wherein the protrusion has at least two annular curved portions provided annularly on a ceiling portion having a flat surface-like shape and an outer side in a radial direction of the ceiling portion, in a state where pressure on an outer wall side of the protrusion and pressure on an inner wall side of the protrusion are the same, the at least two annular curved portions are each formed to be curved in a cross-section of the diaphragm obtained by cutting the diaphragm by a virtual plane including a center line of the diaphragm, the centers of curvature of the curved portions being arranged at different positions on a side opposite to a protruding direction of the protrusion, and the diaphragm is formed of a sheet metal.
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公开(公告)号：US20180306368A1
公开(公告)日：2018-10-25
申请号：US15576713
申请日：2016-05-11
Applicant: FUJIKOKI CORPORATION , DENSO CORPORATION
Inventor： Shin YOSHIDA , Takao OKADA , Makoto SUDO , Osamu HISHINUMA , Hiroatsu YAMADA
IPC: F16L55/053 , F02M37/00
CPC classification number: F16L55/053 , F02M37/0041 , F02M51/00 , F02M55/00 , F02M55/04 , F02M59/26 , F02M59/36 , F02M59/44 , F02M59/447 , F02M59/46 , F02M2200/315 , F16J3/02
Abstract: A pulsation damper includes an upper diaphragm, a lower diaphragm configured to form a sealed space having a predetermined pressure with the upper diaphragm, in which an inert gas is filled; and a deformation suppressing member formed of an elastic material, and comprising an inner cylindrical portion, and an extension portion extending from a center portion on an outer peripheral surface of the inner cylindrical portion such that the extension portion extends outward from a center axis of the inner cylindrical portion, wherein the deformation suppressing member is arranged inside the sealed space such that an outer periphery of the extension portion abuts against inner walls of the upper diaphragm and the lower diaphragm.
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Patent Agency Ranking
公开(公告)号：US20170101987A1
公开(公告)日：2017-04-13
申请号：US15386177
申请日：2016-12-21
Applicant: DENSO CORPORATION
Inventor： Takehiko KATO , Shinichiro KOSHIMOTO , Osamu HISHINUMA , Yutaka MIYAMOTO
CPC classification number: F04B53/1085 , F02M59/025 , F02M59/466 , F02M63/0075 , F02M63/0077 , F02M63/0078 , F04B1/0452 , F04B19/04 , F04B19/22 , F04B53/1087 , F04B53/14 , F04B53/16 , F16K1/32
Abstract: A valve seat member, which partitions between a supply passage and a pressurizing chamber, includes an inner flow path, which communicates between the supply passage and the pressurizing chamber, and an outer flow path, which is placed on a radially outer side of the inner flow path. An inner valve is seatable against an inner valve seat formed in an opening of the inner flow path. An outer valve is contactable with an end surface of the inner valve, which is opposite from the inner valve seat. The outer valve is seatable against an outer valve seat, which is formed in an opening of the outer flow path.
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公开(公告)号：US20160348657A1
公开(公告)日：2016-12-01
申请号：US15232055
申请日：2016-08-09
Applicant: DENSO CORPORATION , NIPPON SOKEN, INC.
Inventor： Teppei MATSUMOTO , Masatoshi KUROYANAGI , Osamu HISHINUMA
CPC classification number: F04B11/0033 , F02M37/06 , F02M59/02 , F02M59/102 , F02M59/46 , F02M59/48 , F04B1/0404 , F04B11/0016 , F04B53/007 , F04B53/143 , F04B53/16 , F04B53/162 , F04B53/22
Abstract: A cylinder is configured into a bottomed tubular form and includes an inner peripheral wall, an inner bottom wall, an outer peripheral wall and an intake hole and a discharge hole. The inner peripheral wall slidably guides the plunger. The intake hole and the discharge hole communicate between the inner peripheral wall and the outer peripheral wall. A pump housing includes a cylinder receiving hole that includes an inner peripheral wall, into which the cylinder is inserted. A pressurizing chamber is formed by the inner peripheral wall and the inner bottom wall of the cylinder and a distal end outer wall of the plunger.
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公开(公告)号：US20150152862A1
公开(公告)日：2015-06-04
申请号：US14620954
申请日：2015-02-12
Applicant: DENSO CORPORATION
Inventor： Teppei MATSUMOTO , Masatoshi KUROYANAGI , Osamu HISHINUMA
CPC classification number: F04B11/0033 , F02M37/06 , F02M59/02 , F02M59/102 , F02M59/46 , F02M59/48 , F04B1/0404 , F04B11/0016 , F04B53/007 , F04B53/143 , F04B53/16 , F04B53/162 , F04B53/22
Abstract: A cylinder is configured into a bottomed tubular form and includes an inner peripheral wall, an inner bottom wall, an outer peripheral wall and an intake hole and a discharge hole. The inner peripheral wall slidably guides the plunger. The intake hole and the discharge hole communicate between the inner peripheral wall and the outer peripheral wall. A pump housing includes a cylinder receiving hole that includes an inner peripheral wall, into which the cylinder is inserted. A pressurizing chamber is formed by the inner peripheral wall and the inner bottom wall of the cylinder and a distal end outer wall of the plunger.
Abstract translation: 圆筒构造成有底的管状，并且包括内周壁，内底壁，外周壁和进气孔以及排出孔。 内周壁滑动地引导柱塞。 进气孔和排出孔在内周壁和外周壁之间连通。 泵壳体包括气缸容纳孔，该气缸容纳孔包括内圆周壁，气缸插入其中。 加压室由圆筒的内周壁和内底壁以及柱塞的远端外壁形成。
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公开(公告)号：US20180223782A1
公开(公告)日：2018-08-09
申请号：US15748440
申请日：2016-07-28
Inventor： Takeyuki YABUUCHI , Shinichi SUGIMOTO , Osamu HISHINUMA , Hiroatsu YAMADA , Toshiaki IWA , Yoshihiro OGAWA , Yusuke SATO
CPC classification number: F02M55/04 , F02M37/0041 , F02M2200/26 , F02M2200/315 , F04B11/0016
Abstract: A damper device is provided in a flow passage of a fluid. The damper device includes a plurality of diaphragm dampers that are stacked together. Each of the plurality of diaphragm dampers includes a first flexible portion, a second flexible portion, and a rim including a welded portion. A peripheral edge of the first flexible portion and a peripheral edge of the second flexible portion are welded together in the welded portion. Each of the plurality of diaphragm dampers is configured to seal a gas in an inner region between the first flexible portion and the second flexible portion. A coupler that couples the plurality of diaphragm dampers together includes holders that hold the rims of the plurality of diaphragm dampers. A gap is provided between the holder of the coupler and the welded portion of each of the plurality of diaphragm dampers.
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公开(公告)号：US20150017040A1
公开(公告)日：2015-01-15
申请号：US14322067
申请日：2014-07-02
Applicant: DENSO CORPORATION
Inventor： Osamu HISHINUMA , Noriya MATSUMOTO , Hiroatsu YAMADA
CPC classification number: F02M59/02 , F02M55/04 , F02M59/367 , F02M59/44 , F04B11/0033
Abstract: A pulsation dumper configured to reduce a fuel pressure pulsation of fuel flowing in a fuel chamber includes a sealed space in which gas having a predetermined pressure is encapsulated between a first diaphragm and a second diaphragm configured to be resiliently deformable by a fuel pressure pulsation in the fuel chamber. A first resilient member provided in the sealed space abuts against an inner wall of the first diaphragm, and a second resilient member abuts against an inner wall of a second diaphragm. A supporting member provided between the first resilient member and the second resilient member supports an outer peripheral portion of the first resilient member and an outer peripheral portion of the second resilient member. A resonance of first and second diaphragms is restrained by the first and second resilient members. The first and second resilient members do not impair deformation of center portions of the first and second diaphragms.
Abstract translation: 构造成减少在燃料室中流动的燃料的燃料压力脉动的脉动转储器包括密封空间，其中具有预定压力的气体被封装在第一膜片和第二膜片之间，该第一膜片和第二膜片被构造成可通过燃料压力脉动弹性变形 燃料舱。 设置在密封空间中的第一弹性构件邻接第一隔膜的内壁，第二弹性构件抵靠第二隔膜的内壁。 设置在第一弹性构件和第二弹性构件之间的支撑构件支撑第一弹性构件的外周部分和第二弹性构件的外周部分。 第一和第二隔膜的共振被第一和第二弹性构件约束。 第一和第二弹性构件不会损害第一和第二隔膜的中心部分的变形。
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