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1. WO2004005696 - DIESEL ENGINE DME FUEL SUPPLY DEVICE

Publication Number WO/2004/005696
Publication Date 15.01.2004
International Application No. PCT/JP2003/008725
International Filing Date 09.07.2003
Chapter 2 Demand Filed 12.11.2003
IPC
F02M 21/02 2006.01
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
21Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
02for gaseous fuels
F02M 59/10 2006.01
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
59Pumps specially adapted for fuel-injection and not provided for in groups F02M39/-F02M57/126
02of reciprocating-piston type
10characterised by the piston drive
F02M 59/28 2006.01
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
59Pumps specially adapted for fuel-injection and not provided for in groups F02M39/-F02M57/126
20Varying fuel delivery in quantity or timing
24with constant-length-stroke pistons having variable effective portion of stroke
26caused by movements of pistons relative to their cylinders
28Mechanisms therefor
F02M 59/44 2006.01
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
59Pumps specially adapted for fuel-injection and not provided for in groups F02M39/-F02M57/126
44Details, component parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02-F02M59/42165
F02M 63/00 2006.01
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
63Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/-F02M57/143; Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/-F02M61/193
F02M 63/02 2006.01
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
63Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/-F02M57/143; Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/-F02M61/193
02Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
CPC
F02D 19/027
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
19Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
02peculiar to engines working with gaseous fuels
026Measuring or estimating parameters related to the fuel supply system
027Determining the fuel pressure, temperature or volume flow, the fuel tank fill level or a valve position
F02M 21/0212
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
21Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
02for gaseous fuels
0203characterised by the type of gaseous fuel
0209Hydrocarbon fuels, e.g. methane or acetylene
0212comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
F02M 21/0236
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
21Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
02for gaseous fuels
0218Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
023Valves; Pressure or flow regulators in the fuel supply or return system
0236Multi-way valves; Multiple valves forming a multi-way valve system
F02M 21/0245
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
21Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
02for gaseous fuels
0218Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
0245High pressure fuel supply systems; Rails; Pumps; Arrangement of valves
F02M 21/0275
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
21Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
02for gaseous fuels
0218Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
0248Injectors
0275for in-cylinder direct injection, e.g. injector combined with spark plug
F02M 59/102
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
59Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00 ; , e.g. rotary cylinder-block type of pumps
02of reciprocating-piston ; or reciprocating-cylinder; type
10characterised by the piston-drive
102Mechanical drive, e.g. tappets or cams
Applicants
  • BOSCH AUTOMOTIVE SYSTEMS CORPORATION [JP]/[JP] (AllExceptUS)
  • HAYASAKA, Yukihiro [JP]/[JP] (UsOnly)
  • NOZAKI, Shinya [JP]/[JP] (UsOnly)
  • NODA, Toshifumi [JP]/[JP] (UsOnly)
  • USHIYAMA, Daijo [JP]/[JP] (UsOnly)
  • OIKAWA, Hiroshi [JP]/[JP] (UsOnly)
Inventors
  • HAYASAKA, Yukihiro
  • NOZAKI, Shinya
  • NODA, Toshifumi
  • USHIYAMA, Daijo
  • OIKAWA, Hiroshi
Agents
  • ISHII, Hiroki
Priority Data
2002-19940709.07.2002JP
2002-22749305.08.2002JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) DIESEL ENGINE DME FUEL SUPPLY DEVICE
(FR) DISPOSITIF D'ALIMENTATION EN CARBURANT DIMETHYLETER (DME) DE MOTEUR DIESEL
(JA) ディーゼルエンジンのDME燃料供給装置
Abstract
(EN)
A bypass controller (30) controls ON/OFF of a three-way electromagnetic valve (62) according to a detection value of a cam chamber sensor (12a). When the cam chamber sensor (12a) detects a viscosity of lubricant exceeding a predetermined allowable value, the three-way electromagnetic valve (62) is controlled to turn ON so that the output side of an oil separator (13) communicates with a bypass route (61). The pressure in the cam chamber (12) is reduced to or below the atmospheric pressure by suction of a compressor (16) with a check valve (14) regulating the pressure in the cam chamber (12) to the atmospheric pressure or above in the bypassed state. When the detection value of the viscosity of the lubricant output by the cam chamber sensor (12a) has become the predetermined allowable value or below, the three-way electromagnetic valve (62) is controlled to turn OFF so that the output side of the oil separator (13) communicates with the check valve (14) and the bypass route (61) is cut off.
(FR)
L'invention concerne une unité de commande de dérivation (30) permettant de commander l'ouverture/fermeture d'une vanne électromagnétique à trois voies (62) en fonction d'une valeur de détection d'un capteur (12à) de chambre de came. Lorsque le capteur (12à) de chambre de came détecte une viscosité de lubrifiant excédant une valeur admissible prédéterminée, la vanne électromagnétique trois à voies (62) reçoit l'ordre de fermer de sorte que le côté extérieur d'un séparateur d'huile (13) communique avec une voie de dérivation (61). La pression de la chambre de came (12) est ramenée à la pression atmosphérique ou en-dessous par aspiration d'un compresseur (16) équipé d'un clapet (14) régulant la pression dans la chambre de came (12) jusqu'à atteindre la pression atmosphérique ou au-dessus à l'état dérivé. Lorsque la valeur de la viscosité du lubrifiant détectée fournie par le capteur (12à) de la chambre de came a atteint la valeur admissible prédéterminée, la vanne électromagnétique à trois voies (62) reçoit l'ordre de s'ouvrir de sorte que le côté sortie du séparateur d'huile (13) communique avec le clapet (14) et la voie de dérivation (61) est fermée.
(JA)
バイパス制御部30は、カム室内センサ12aの検出値に基づいて、3方電磁弁62をON/OFF制御する。カム室内センサ12aが検出した潤滑油の粘度の検出値が所定の許容値を超えた場合に、3方電磁弁62をON制御してオイルセパレータ13の出口側をバイパス通路61へ連通させる。カム室12内は、カム室12内の圧力を大気圧以上に規制するチェック弁14がバイパスされた状態でコンプレッサー16によって吸引されることによって大気圧以下に減圧される。カム室内センサ12aが出力する潤滑油の粘度の検出値が所定の許容値以下になった時点で、3方電磁弁62をOFF制御してオイルセパレータ13の出口側をチェック弁14側へ連通させ、バイパス通路61を遮断する。
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