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1. (WO2019065830) PISTON RING
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Pub. No.: WO/2019/065830 International Application No.: PCT/JP2018/035908
Publication Date: 04.04.2019 International Filing Date: 27.09.2018
IPC:
F16J 9/12 (2006.01) ,F02F 5/00 (2006.01) ,F16J 9/06 (2006.01) ,F16J 10/00 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
J
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
9
Piston-rings, seats therefor; Ring sealings of similar construction in general
12
Details
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F
CYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
5
Piston rings, e.g. associated with piston crown
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
J
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
9
Piston-rings, seats therefor; Ring sealings of similar construction in general
06
using separate springs expanding the rings; Springs therefor
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
J
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
10
Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
Applicants:
日本ピストンリング株式会社 NIPPON PISTON RING CO., LTD. [JP/JP]; 埼玉県さいたま市中央区本町東5丁目12番10号 5-12-10, Honmachi-higashi, Chuo-ku, Saitama-shi, Saitama 3388503, JP
Inventors:
伊藤 倫浩 ITO Michihiro; JP
蓮見 良介 HASUMI Ryosuke; JP
Agent:
特許業務法人 インテクト国際特許事務所 INTECT INTERNATIONAL PATENT OFFICE; 東京都千代田区麹町四丁目7番2号 Daiwa麹町4丁目ビル4階 Daiwa Kojimachi 4-chome Bldg. 4F, 4-7-2, Kojimachi, Chiyoda-ku, Tokyo 1020083, JP
石橋 良規 ISHIBASHI Yoshinori; JP
Priority Data:
2017-19016729.09.2017JP
Title (EN) PISTON RING
(FR) SEGMENT DE PISTON
(JA) ピストンリング
Abstract:
(EN) Provided is a piston ring to be combined with a low friction cylinder liner, with which it is possible to obtain a friction reducing effect of the low friction cylinder liner even at low rotational speeds when the rotational speed of an internal-combustion engine is 1000 rpm or less, such as in an idling state. This piston ring to be combined with a low friction cylinder liner in which prescribed recessed portions are formed in an inner wall surface of the cylinder liner has a piston ring surface pressure of 0.8 to 2.5 MPa.
(FR) Segment de piston destiné à être combiné avec une chemise de cylindre à faible frottement, avec lequel il est possible d'obtenir un effet de réduction de frottement de la chemise de cylindre à faible frottement même à de faibles vitesses de rotation lorsque la vitesse de rotation d'un moteur à combustion interne est inférieure ou égale à 1000 tr/min, comme dans un état de ralenti. Ce segment de piston à combiner à une chemise de cylindre à faible frottement dans laquelle des parties en retrait prescrites sont formées dans une surface de paroi intérieure de la chemise de cylindre a une pression de surface de segment de piston de 0,8 à 2,5 MPa.
(JA) 低摩擦シリンダライナに組み合わされるピストンリングにおいて、アイドリング状態のような内燃機関の回転数が1000rpm以下の低回転時においても低摩擦シリンダライナの摩擦低減効果を得ることができるピストンリングを提供する。 シリンダライナの内壁面に所定の凹部が形成された低摩擦シリンダライナに組み合わされるピストンリングであって、ピストンリングの面圧は、0.8~2.5MPaである。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)