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1. (WO2019032919) PISTON-INTEGRATED GAP COVER
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/032919 International Application No.: PCT/US2018/046140
Publication Date: 14.02.2019 International Filing Date: 09.08.2018
IPC:
F16J 1/00 (2006.01) ,B23P 15/08 (2006.01) ,F02F 3/00 (2006.01) ,F02F 3/10 (2006.01) ,F02F 3/12 (2006.01) ,B23P 15/10 (2006.01) ,F16J 9/16 (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
1
Pistons; Trunk pistons; Plungers
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
P
OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
15
Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
08
piston rings from several pieces
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
3
Pistons
10
having surface coverings
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
10
having surface coverings
12
on piston heads
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
P
OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
15
Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
10
pistons
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
14
Joint-closures
16
obtained by stacking of rings
Applicants:
ETAGEN, INC. [US/US]; 3601 Haven Avenue Menlo Park, CA 94025, US
Inventors:
SVRCEK, Matt; US
DEGRAAFF, David; US
Agent:
SHVARTS, Alexander; US
LEE, Andrew; US
LEIZ, James; US
RAPOPORT, Maxim; US
Priority Data:
62/543,29609.08.2017US
Title (EN) PISTON-INTEGRATED GAP COVER
(FR) COUVERTURE D'ESPACE INTÉGRÉE À UN PISTON
Abstract:
(EN) The present disclosure provides a sealing ring assembly (402) with one or more piston-integrated gap cover features, configured to seal a high-pressure region from a relatively lower pressure region of a piston (410) and cylinder device. The sealing ring assembly may include two rings (420, 430) which each may include one or more ring segments. The one or more gap-cover features (450, 452), which may be in the form of protrusions in the piston ring groove, may engage with corresponding flat sections of the ring segments. As the sealing ring wears, the gap-cover features may stay engaged with the ring segments, thereby maintaining a seal.
(FR) La présente invention concerne un ensemble segment d'étanchéité (402) ayant un ou plusieurs organes de couverture d'espace intégrés à un piston, conçu pour isoler une région à haute pression d'une région de pression relativement inférieure d'un piston (410) et d'un dispositif de cylindre. L'ensemble segment d'étanchéité peut comprendre deux segments (420, 430) qui peuvent chacun comprendre une ou plusieurs parties de segment. Ledit organe de couverture d'espace (450, 452), qui peut se présenter sous la forme de saillies dans la rainure du segment de piston, peut venir en prise avec des sections plates correspondantes des parties de segment. Lorsque le segment d'étanchéité s'use, les organes de couverture d'espace peuvent rester en prise avec les parties de segment, ce qui permet de maintenir une étanchéité.
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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)