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1. WO2020090180 - SEALING DEVICE

Publication Number WO/2020/090180
Publication Date 07.05.2020
International Application No. PCT/JP2019/030749
International Filing Date 05.08.2019
IPC
F16J 15/3204 2016.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15Sealings
16between relatively-moving surfaces
32with elastic sealings, e.g. O-rings
3204with at least one lip
F02M 26/11 2016.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
26Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation systems
11Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR systems
F02M 26/70 2016.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
26Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation systems
65Constructional details of EGR valves
70Flap valves; Rotary valves; Sliding valves; Resilient valves
F16J 15/3212 2016.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15Sealings
16between relatively-moving surfaces
32with elastic sealings, e.g. O-rings
3204with at least one lip
3208provided with tension elements, e.g. elastic rings
3212with metal springs
F16J 15/3224 2016.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15Sealings
16between relatively-moving surfaces
32with elastic sealings, e.g. O-rings
3204with at least one lip
3224capable of accommodating changes in distances or misalignment between the surfaces, e.g. able to compensate for defaults of eccentricity or angular deviations
F16J 15/3228 2016.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15Sealings
16between relatively-moving surfaces
32with elastic sealings, e.g. O-rings
3204with at least one lip
3228formed by deforming a flat ring
Applicants
  • NOK株式会社 NOK CORPORATION [JP]/[JP]
Inventors
  • 江口 信行 EGUCHI,Nobuyuki
Agents
  • 特許業務法人秀和特許事務所 IP FIRM SHUWA
Priority Data
2018-20281929.10.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) SEALING DEVICE
(FR) DISPOSITIF D'ÉTANCHÉITÉ
(JA) 密封装置
Abstract
(EN)
Provided is a sealing device in which the eccentricity of a rotating shaft can be prevented without providing a bearing separately from the sealing device. This sealing device is provided with: a metal ring 110 having a circular cylindrical section 111 and an inward facing flange section 112 which is provided at an end of the circular cylinder section 111; a resin seal 120 which is configured from a plate-shaped annular resin member, has an outer peripheral side affixed to the metal ring 110, and has an inner peripheral side in close slidable contact with the outer peripheral surface of a rotating shaft while being deformed so as to be bent toward a region to be sealed; a plate spring 130 which is configured from a plate-shaped annular metal member, has an outer peripheral side affixed to the metal ring 110, has an inner peripheral side deformed so as to be bent along the resin seal 120, and presses radially inward the inner peripheral side of the resin seal 120; and a metal slide bearing 140 sandwiched between the resin seal 120 and the inward facing flange section 112 and provided so as to be slidable on the outer peripheral surface of the rotating shaft.
(FR)
L'invention concerne un dispositif d'étanchéité permettant d'empêcher l'excentricité d'un arbre rotatif sans fournir un palier séparément du dispositif d'étanchéité. Le dispositif d'étanchéité comprend : une bague métallique (110) comportant une section cylindrique circulaire (111) et une section de bride tournée vers l'intérieur (112) qui est disposée à une extrémité de la section cylindrique circulaire (111) ; un joint en résine qui est conçu à partir d'un élément en résine annulaire en forme de plaque, comporte un côté périphérique externe fixé à la bague métallique (110) et possède un côté périphérique interne en contact coulissant étroit avec la surface périphérique externe d'un arbre rotatif tout en étant déformé de façon à être courbé vers une région à étanchéifier ; un ressort à lames (130) qui est conçu à partir d'un élément métallique annulaire en forme de plaque, comporte un côté périphérique externe fixé à la bague métallique (110), possède un côté périphérique interne déformé de façon à être plié le long du joint en résine (120), et qui presse radialement vers l'intérieur le côté périphérique interne du joint en résine (120) ; et un palier lisse métallique (140) pris en sandwich entre le joint en résine (120) et la section de bride tournée vers l'intérieur (112) et disposé de façon à pouvoir coulisser sur la surface périphérique externe de l'arbre rotatif.
(JA)
密封装置とは別に軸受を設けることなく、回転軸の偏心を抑制可能とする密封装置を提供する。 円筒部111と、円筒部111の端部に設けられる内向きフランジ部112とを有する金属環110と、板状かつ環状の樹脂部材により構成され、外周側が金属環110に固定されて、内周側が密封対象領域側に向かって湾曲するように変形した状態で回転軸の外周面に摺動自在に密着する樹脂製シール120と、板状かつ環状の金属部材により構成され、外周側が金属環110に固定されて、内周側が樹脂製シール120に沿って湾曲するように変形し、樹脂製シール120の内周側を径方向内側に向かって押圧する板バネ130と、樹脂製シール120と内向きフランジ部112との間に挟み込まれ、かつ、前記回転軸の外周面に摺動自在に設けられる金属製のすべり軸受140と、を備える。
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