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1. WO2013099533 - FUEL SUPPLY DEVICE

Publication Number WO/2013/099533
Publication Date 04.07.2013
International Application No. PCT/JP2012/081348
International Filing Date 04.12.2012
IPC
F02M 55/00 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
55Fuel-injection apparatus characterised by their fuel conduits or their venting means
F02M 37/00 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
37Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
F02M 55/02 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
55Fuel-injection apparatus characterised by their fuel conduits or their venting means
02Conduits between injection pumps and injectors
CPC
F01N 3/021
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
021by means of filters
F01N 3/0253
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
021by means of filters
023using means for regenerating the filters, e.g. by burning trapped particles
025using fuel burner or by adding fuel to exhaust
0253adding fuel to exhaust gases
F02B 3/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
3Engines characterised by air compression and subsequent fuel addition
06with compression ignition
F02M 2200/21
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
2200Details of fuel-injection apparatus, not otherwise provided for
21Fuel-injection apparatus with piezo-electric or magnetostrictive elements
F02M 2200/60
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
2200Details of fuel-injection apparatus, not otherwise provided for
60Fuel-injection apparatus having means for facilitating the starting of engines, e.g. with valves or fuel passages for keeping residual pressure in common rails
F02M 37/0052
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
37Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
0047Layout or arrangement of systems for feeding fuel
0052Details on the fuel return circuit; Arrangement of pressure regulators
Applicants
  • 株式会社豊田自動織機 KABUSHIKI KAISHA TOYOTA JIDOSHOKKI [JP]/[JP]
  • 横田 晋司 YOKOTA, Shinji [JP]/[JP] (US)
Inventors
  • 横田 晋司 YOKOTA, Shinji
  • 山口 猛 YAMAGUCHI, Takeshi
Agents
  • 恩田 博宣 ONDA, Hironori
Priority Data
2011-28698227.12.2011JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) FUEL SUPPLY DEVICE
(FR) DISPOSITIF DE FOURNITURE DE CARBURANT
(JA) 燃料供給装置
Abstract
(EN) A fuel supply device comprises a return flow channel (39) for merging a first return flow channel (25) with a second return flow channel (27) at a merging point (D) and returning the flow channel to a fuel tank (3). A back pressure valve (29) is provided to the return flow channel (39), and back pressure is imparted to first injectors (1a-1d) and second injectors (1e-1h). Communicating flow channels (31a, 31b) connect an intermediate pressure flow channel (13) to either the first return flow channel (25), the second return flow channel (27), or a portion upstream of the back pressure valve (29). A non-return valve (33) has lower open valve pressure than the back pressure, the non-return valve (33) is provided to the communicating flow channels (31a, 31b), and the non-return valve (33) allows fuel to be supplied from the intermediate pressure flow channel (13) to the first return flow channel (25) and the second return flow channel (27) and prevents the fuel from flowing the opposite direction.
(FR) L'invention porte sur un dispositif de fourniture de carburant qui comprend un conduit de flux de retour (39) servant à réunir un premier conduit de flux de retour (25) avec un second conduit de flux de retour (27) en un point de réunion (D) et à renvoyer le conduit de flux à un réservoir de carburant (3). Une soupape de contre-pression (29) est intercalée dans le conduit de flux de retour (39), et une contre-pression est appliquée à des premiers injecteurs (1a-1d) et des seconds injecteurs (1e-1h). Des conduits de flux communicants (31a, 31b) relient un conduit de flux à pression intermédiaire (13), soit au premier conduit de flux de retour (25), soit au second conduit de flux de retour (27), soit à une partie située en amont de la soupape de contre-pression (29). Un clapet de non-retour (33) a une pression d'ouverture de clapet inférieure à la contre-pression. Le clapet de non-retour (33) est placé sur les conduits de flux communicants (31a, 31b) et le clapet de non-retour (33) permet au carburant d'être envoyé du conduit de flux de pression intermédiaire (13) au premier conduit de flux de retour (25) et au second conduit de flux de retour (27) et empêche le carburant de s'écouler dans le sens opposé.
(JA)  燃料供給装置は、第1リターン流路(25)を第2リターン流路(27)に合流点(D)で合流させて燃料タンク(3)に戻す帰還流路(39)を備える。背圧弁(29)は、帰還流路(39)に設けられ、各第1インジェクタ(1a~1d)と各第2インジェクタ(1e~1h)とに背圧を付与する。連絡流路(31a,31b)は、中圧流路(13)を、第1リターン流路(25)と、第2リターン流路(27)と、背圧弁(29)よりも上流部分とのうちのいずれかに接続する。逆止弁(33)は、背圧よりも低い開弁圧を有して連絡流路(31a,31b)に設けられ、中圧流路(13)から第1リターン流路(25)と第2リターン流路(27)とへの燃料の供給を許容し、この逆を阻止する。
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