(12) International Application Status Report

Received at International Bureau: 18 May 2020 (18.05.2020)

Information valid as of: 19 October 2020 (19.10.2020)

Report generated on: 07 March 2021 (07.03.2021)

(10) Publication number: (43) Publication date: (26) Publication language:
WO 2020/22147705 November 2020 (05.11.2020) English (EN)

(21) Application number: (22) Filing date: (25) Filing language:
PCT/EP2020/02519829 April 2020 (29.04.2020) English (EN)

(31) Priority number(s): (32) Priority date(s): (33) Priority status:
62/839,990 (US)29 April 2019 (29.04.2019) Priority document received (in compliance with PCT Rule 17.1)

(51) International Patent Classification:
F01L 1/18 (2006.01); F01L 13/06 (2006.01); F01L 13/00 (2006.01); F01L 1/24 (2006.01); F01L 1/46 (2006.01); F01L 9/02 (2006.01); F01L 1/053 (2006.01)

(71) Applicant(s):
EATON INTELLIGENT POWER LIMITED [IE/IE]; 30 Pembroke Road Dublin, 4 (IE) (for all designated states)

(72) Inventor(s):
VANWINGERDEN, Mark; 456 E. Hamilton Lane Battle Creek, MI 49015 (US)
LEE, Andrew; 6625 Brigham Street Portage, MI 49024 (US)

(74) Agent(s):
BRP RENAUD & PARTNER MBB RECHTSANWÄLTE PATENTANWÄLTE STEUERBERATER; Königstraße 28 70173 Stuttgart (DE)

(54) Title (EN): TYPE II PAIRED HYDRAULICS ENGINE BRAKE
(54) Title (FR): FREIN MOTEUR HYDRAULIQUE APPARIÉ DE TYPE II

(57) Abstract:
(EN): A hydraulic system for a rocker arm assembly having an exhaust rocker arm configured to selectively open an engine valve includes a carrier assembly configured to couple to a cylinder head of an engine, a brake plunger assembly disposed in the carrier assembly and configured to be actuated by a braking lobe of a camshaft, and a slave plunger assembly disposed in the carrier assembly and configured to be selectively hydraulically coupled to the brake plunger assembly. When the brake plunger assembly and the slave plunger assembly are hydraulically coupled, the brake plunger assembly is configured to impart movement via hydraulic fluid and the slave plunger assembly to actuate the exhaust rocker arm and open the engine valve to perform an engine braking operation.
(FR): Dans la présente invention, un système hydraulique pour un ensemble culbuteur ayant un culbuteur d'échappement configuré pour ouvrir sélectivement une soupape de moteur comprend un ensemble de support configuré pour se coupler à une culasse d'un moteur, un ensemble piston de frein disposé dans l'ensemble support et conçu pour être actionné par un lobe de freinage d'un arbre à cames, et un ensemble piston esclave disposé dans l'ensemble support et conçu pour être couplé hydrauliquement de manière sélective à l'ensemble piston de frein. Lorsque l'ensemble piston de frein et l'ensemble piston esclave sont accouplés hydrauliquement, l'ensemble piston de frein est configuré pour communiquer un mouvement par l'intermédiaire d'un fluide hydraulique et l'ensemble piston esclave est configuré pour actionner le culbuteur d'échappement et ouvrir la soupape de moteur afin d'effectuer une opération de freinage de moteur.

International search report:
Received at International Bureau: 13 August 2020 (13.08.2020) [EP]

International Report on Patentability (IPRP) Chapter II of the PCT:
Not available

(81) 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, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, WS, ZA, ZM, ZW
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 (OAPI) : BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG
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 (EAPO) : AM, AZ, BY, KG, KZ, RU, TJ, TM

Declarations:
Declaration made as applicant's entitlement, as at the international filing date, to apply for and be granted a patent (Rules 4.17(ii) and 51bis.1(a)(ii)), in a case where the declaration under Rule 4.17(iv) is not appropriate
Declaration made as applicant's entitlement, as at the international filing date, to claim the priority of the earlier application, where the applicant is not the applicant who filed the earlier application or where the applicant's name has changed since the filing of the earlier application (Rules 4.17(iii) and 51bis.1(a)(iii))