Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO2010075207) PISTON ASSEMBLY HAVING A PASSAGE EXTENDING TO THE SECOND RING GROOVE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/075207 International Application No.: PCT/US2009/068705
Publication Date: 01.07.2010 International Filing Date: 18.12.2009
IPC:
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
9
Piston-rings, seats therefor; Ring sealings of similar construction in general
12
Details
14
Joint-closures
16
obtained by stacking of rings
Applicants:
CATERPILLAR INC. [US/US]; 100 N.E. Adams Street Peoria, IL 61629-9510, US (AllExceptUS)
JARRETT, Mark, W. [US/US]; US (UsOnly)
HITTLE, Craig, P. [US/US]; US (UsOnly)
KINSEY, Cletus, M., Jr. [US/US]; US (UsOnly)
Inventors:
JARRETT, Mark, W.; US
HITTLE, Craig, P.; US
KINSEY, Cletus, M., Jr.; US
Agent:
HULL, Mark, R.; 100 N.E. Adams Street Peoria, IL 61629-9510, US
Priority Data:
61/139,68222.12.2008US
Title (EN) PISTON ASSEMBLY HAVING A PASSAGE EXTENDING TO THE SECOND RING GROOVE
(FR) ENSEMBLE PISTON POURVU D'UN PASSAGE S'ÉTENDANT JUSQU'À LA SECONDE GORGE DE SEGMENT
Abstract:
(EN) A piston assembly configured to reciprocate within a cylinder of an internal combustion engine is disclosed. The piston assembly comprises a top surface, a cylindrical wall, a first ring, a second ring, and at least one passage. The cylindrical wall extends from the top surface and includes a first ring groove, a second ring groove, and a first land between the first ring groove and the second ring groove. The first ring is received within the first ring groove. The second ring is received within the second ring groove. The second ring includes an outer surface configured to engage the cylinder and an inner surface opposite the outer surface. The at least one passage fluidly couples a first volume to which the outer surface is exposed to a second volume to which the inner surface is exposed.
(FR) L'invention porte sur un ensemble piston configuré pour effectuer un mouvement de va-et-vient à l'intérieur d'un cylindre d'un moteur à combustion interne. L'ensemble piston comprend une surface supérieure, une paroi cylindrique, un premier segment, un second segment et au moins un passage. La paroi cylindrique s'étend à partir de la surface supérieure et comprend une première gorge de segment, une seconde gorge de segment et une première couronne entre la première gorge de segment et la seconde gorge de segment. Le premier segment est reçu dans la première gorge de segment. Le second segment est reçu dans la seconde gorge de segment. Le second segment comprend une surface externe configurée pour venir en contact avec le cylindre et une surface interne opposée à la surface externe. Le ou les passages couplent de manière fluide un premier volume auquel la surface externe est exposée à un second volume auquel la surface interne est exposée.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, 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, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
JP2012513571