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1. (WO2018225479) HIGH-PRESSURE FUEL PUMP
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Pub. No.: WO/2018/225479 International Application No.: PCT/JP2018/019239
Publication Date: 13.12.2018 International Filing Date: 18.05.2018
IPC:
F02M 59/46 (2006.01) ,F02M 55/04 (2006.01) ,F02M 59/44 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
59
Pumps specially adapted for fuel-injection and not provided for in groups F02M39/-F02M57/126
44
Details, component parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02-F02M59/42165
46
Valves
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
55
Fuel-injection apparatus characterised by their fuel conduits or their venting means
04
Means for damping vibrations in injection-pump inlets
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
59
Pumps specially adapted for fuel-injection and not provided for in groups F02M39/-F02M57/126
44
Details, component parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02-F02M59/42165
Applicants:
日立オートモティブシステムズ株式会社 HITACHI AUTOMOTIVE SYSTEMS, LTD. [JP/JP]; 茨城県ひたちなか市高場2520番地 2520, Takaba, Hitachinaka-shi, Ibaraki 3128503, JP
Inventors:
根本 雅史 NEMOTO Masashi; JP
山田 裕之 YAMADA Hiroyuki; JP
臼井 悟史 USUI Satoshi; JP
高橋 由起夫 TAKAHASHI Yukio; JP
Agent:
戸田 裕二 TODA Yuji; JP
Priority Data:
2017-11393309.06.2017JP
Title (EN) HIGH-PRESSURE FUEL PUMP
(FR) POMPE À CARBURANT HAUTE-PRESSION
(JA) 高圧燃料ポンプ
Abstract:
(EN) The purpose of the present invention is to provide a high-pressure fuel pump configured so that pressure pulsation occurring in low-pressure piping can be reduced using a low-cost structure. This high-pressure fuel pump comprises: a pressurizing chamber for pressurizing fuel; an electromagnetic suction valve mechanism disposed upstream of the pressurizing chamber and regulating the rate of flow supplied to the pressurizing chamber; and a pump housing provided with suction piping. The high-pressure fuel pump further comprises a valve which is disposed upstream of the electromagnetic suction valve mechanism, is mounted to the outlet surface of a low-pressure flow passage for allowing fuel flowing thereinto from the suction piping to flow therethrough, and is configured so that the fuel flows in the downstream direction.
(FR) Le but de la présente invention est de fournir une pompe à carburant haute pression conçue de telle sorte qu'une pulsation de pression se produisant dans une tuyauterie à basse pression peut être réduite à l'aide d'une structure à faible coût. Cette pompe à carburant haute pression comprend : une chambre de mise sous pression destinée à mettre un carburant sous pression ; un mécanisme de soupape d'aspiration électromagnétique disposé en amont de la chambre de mise sous pression et régulant le débit d'écoulement fourni à la chambre de mise sous pression ; et un carter de pompe pourvu d'une tuyauterie d'aspiration. La pompe à carburant haute pression comprend en outre une soupape qui est disposée en amont du mécanisme de soupape d'aspiration électromagnétique, est montée sur la surface de sortie d'un passage d'écoulement basse pression pour permettre à un carburant s'écoulant dans ce dernier à partir de la tuyauterie d'aspiration de s'écouler à travers ce dernier, et est conçue de telle sorte que le carburant s'écoule dans la direction vers l'aval.
(JA) 本発明は、安価な構造で低圧配管に発生する圧力脈動を低減する高圧燃料ポンプを提供することを目的とする。上記課題を解決するために本発明によれば燃料を加圧する加圧室と、前記加圧室の上流側に配置され前記加圧室に供給される流量を制御する電磁吸入弁機構と、吸入配管が設けられたポンプハウジングと、を備えた高圧燃料ポンプにおいて、前記電磁吸入弁機構の上流側に配置され、前記吸入配管から流入した燃料が流れる低圧流路の出口面に取り付けられ、下流方向に燃料が流れるように構成された弁を備えた。
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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, SM, ST, SV, SY, TH, 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, 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: Japanese (JA)
Filing Language: Japanese (JA)