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1. (WO2019028424) SYSTEMS AND METHODS FOR COUNTER FLOW MANAGEMENT AND VALVE MOTION SEQUENCING IN ENHANCED ENGINE BRAKING
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Pub. No.: WO/2019/028424 International Application No.: PCT/US2018/045264
Publication Date: 07.02.2019 International Filing Date: 03.08.2018
IPC:
F01L 13/00 (2006.01) ,F02D 13/04 (2006.01) ,F02M 26/52 (2016.01) ,F02D 9/08 (2006.01) ,F02B 37/12 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
L
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
13
Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
13
Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
02
during engine operation
04
using engine as brake
[IPC code unknown for F02M 26/52]
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
9
Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
08
Throttle valves specially adapted therefor; Arrangements of such valves in conduits
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
37
Engines characterised by provision of pumps driven at least for part of the time by exhaust
12
Control of the pumps
Applicants:
JACOBS VEHICLE SYSTEMS, INC. [US/US]; 22 East Dudley Town Road Bloomfield, CT 06002, US
Inventors:
LILLY, Ryan; US
ALEXANDRU, Matei; US
BALTRUCKI, Justin, D.; US
Agent:
MORENO, Christopher, P.; US
Priority Data:
62/540,76303.08.2017US
Title (EN) SYSTEMS AND METHODS FOR COUNTER FLOW MANAGEMENT AND VALVE MOTION SEQUENCING IN ENHANCED ENGINE BRAKING
(FR) SYSTÈMES ET PROCÉDÉS DE GESTION DE CONTRE-COURANT ET DE SÉQUENÇAGE DE MOUVEMENT DE SOUPAPE DANS UN FREINAGE MOTEUR AMÉLIORÉ
Abstract:
(EN) Systems and methods for managing excessive intake flow path pressure and counter flow are implemented to support enhanced engine braking applications, such as 2-stroke or 1.5-stroke engine braking implementations where the intake flow path may be exposed to excessive transient pressures in the combustion chamber during activation or deactivation of an engine brake. Intake throttle, exhaust gas recirculation (EGR) valve, intake manifold blow-off valve, compressor bypass valve, exhaust throttle, turbocharger geometry or turbocharger waste gate may be controlled to effectuate counter flow management separately or in combination. Excessive transient conditions may also be prevented or managed by sequential valve motion in which brake motion activation occurs first and then exhaust valve main event deactivation occurs second. Delay between brake activation and main event deactivation may be facilitated using mechanical and/or hydraulic implements as well as electronically.
(FR) Des systèmes et des procédés permettant de gérer une pression excessive de circuit d'écoulement d'admission et un contre-courant sont mis en œuvre pour prendre en charge des applications de freinage moteur améliorées, comme des modes de réalisation de freinage moteur à deux temps ou à 1,5 temps, le circuit d'écoulement d'admission pouvant être exposé à des pressions transitoires excessives dans la chambre de combustion pendant l'activation ou la désactivation d'un frein moteur. Un papillon d'admission, une soupape de recirculation des gaz d'échappement (EGR), une soupape de surpression de collecteur d'admission, une soupape de dérivation de compresseur, un papillon d'échappement, une géométrie de turbocompresseur ou une soupape de décharge de turbocompresseur peuvent être commandés pour effectuer une gestion de contre-courant séparément ou ensemble. Des conditions transitoires excessives peuvent également être empêchées ou gérées par un mouvement séquentiel de soupape dans lequel se produit une activation de mouvement de freinage, puis dans lequel se produit la désactivation d'un événement principal de soupape d'échappement. Le retard entre l'activation du frein et la désactivation de l'événement principal peut être permis au moyen d'outils mécaniques et/ou hydrauliques ainsi que de manière électronique.
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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: English (EN)
Filing Language: English (EN)