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1. (WO2019032894) PISTON SEAL WITH SOLID LUBRICANT APPLICATOR
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/032894 International Application No.: PCT/US2018/046104
Publication Date: 14.02.2019 International Filing Date: 09.08.2018
IPC:
F16J 9/26 (2006.01) ,F16J 1/08 (2006.01) ,F02F 3/00 (2006.01) ,F02F 5/00 (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
26
characterised by the use of particular materials
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
1
Pistons; Trunk pistons; Plungers
08
Constructional features providing for lubrication
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
3
Pistons
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
Applicants:
ETAGEN, INC. [US/US]; 3601 Haven Avenue Menlo Park, CA 94025, US
Inventors:
SVRCEK, Matt; US
Agent:
SHVARTS, Alexander; US
LEE, Andrew; US
LEIZ, James; US
RAPOPORT, Maxim; US
Priority Data:
62/543,30509.08.2017US
Title (EN) PISTON SEAL WITH SOLID LUBRICANT APPLICATOR
(FR) JOINT DE PISTON COMPRENANT UN APPLICATEUR DE LUBRIFIANT SOLIDE
Abstract:
(EN) A ringset (220, 230) is configured to be arranged on a piston (226) for sealing a gas in a high-pressure region of a cylinder (260) in the absence of oil or other liquid lubricant. The ringset includes one or more rings made from a high-strength material as a sealing element. The ringset also includes a solid lubricant applicator (261) configured to provide lubrication between the one or more rings and a bore (262) of the cylinder. For example, the ring can support pressure loads from high-pressure gas without breaking, while the applicator need not act as a seal. As the piston reciprocates in the bore, the applicator slides against the bore and applies solid lubricant material to the bore, resulting in a solid lubricant film on the bore against which the sealing element may slide. The applicator includes a material such as a graphite, a polymer, or other suitable solid lubricant.
(FR) L'invention concerne un ensemble anneau (220, 230) conçu pour être disposé sur un piston (226) pour sceller un gaz dans une région à haute pression d'un cylindre (260) en l'absence d'huile ou d'un autre lubrifiant liquide. L'ensemble anneau comprend un ou plusieurs anneaux fabriqués à partir d'un matériau à haute résistance en tant qu'élément d'étanchéité. L'ensemble anneau comprend également un applicateur de lubrifiant solide (261) conçu pour assurer une lubrification entre le ou les anneaux et un trou (262) du cylindre. Par exemple, l'anneau peut supporter des charges de pression provenant d'un gaz à haute pression sans subir de rupture, tandis que l'applicateur n'a pas besoin d'agir comme un joint d'étanchéité. Lorsque le piston effectue un mouvement de va-et-vient dans le trou, l'applicateur coulisse contre le trou et applique un matériau lubrifiant solide au trou, produisant un film lubrifiant solide sur le trou contre lequel l'élément d'étanchéité peut coulisser. L'applicateur comprend un matériau tel qu'un graphite, un polymère ou un autre lubrifiant solide approprié.
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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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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: English (EN)
Filing Language: English (EN)